octave-dspies: libinterp/dldfcn/__magick_read_

annotate libinterp/dldfcn/__magick_read__.cc @ 18957:87cba451fd5e stable

__magick_read__.cc: fix png check for image class in older GM (bug #42834).

author	Carnë Draug <carandraug@octave.org>
date	Thu, 24 Jul 2014 17:37:45 +0100
parents	548643c76a88
children

rev	line source
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	1 /*
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	2
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	3 Copyright (C) 2013 Carnë Draug
17744 d63878346099 maint: Update copyright notices for release. John W. Eaton <jwe@octave.org> parents: 17705 diff changeset	4 Copyright (C) 2002-2013 Andy Adler
7932 d75586531aac style fixes John W. Eaton <jwe@octave.org> parents: 7931 diff changeset	5 Copyright (C) 2008 Thomas L. Scofield
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	6 Copyright (C) 2010 David Grundberg
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	7
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	8 This file is part of Octave.
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	9
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	10 Octave is free software; you can redistribute it and/or modify it
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	11 under the terms of the GNU General Public License as published by the
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	12 Free Software Foundation; either version 3 of the License, or (at your
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	13 option) any later version.
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	14
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	15 Octave is distributed in the hope that it will be useful, but WITHOUT
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	18 for more details.
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	19
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	20 You should have received a copy of the GNU General Public License
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	21 along with Octave; see the file COPYING. If not, see
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	22 <http://www.gnu.org/licenses/>.
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	23
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	24 */
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	25
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	26 #ifdef HAVE_CONFIG_H
d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	27 #include <config.h>
d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	28 #endif
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	29
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	30 #include "file-stat.h"
10390 ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	31 #include "oct-env.h"
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	32 #include "oct-time.h"
0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	33
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	34 #include "defun-dld.h"
d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	35 #include "error.h"
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	36 #include "ov-struct.h"
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	37
16925 5c25f7ed080c __magick_read__.cc: add missing include of gripes.h Torsten <ttl@justmail.de>* parents: 16901 diff changeset	38 #include "gripes.h"
5c25f7ed080c __magick_read__.cc: add missing include of gripes.h Torsten <ttl@justmail.de>* parents: 16901 diff changeset	39
7937 6661387827d6 Allow build without GraphicsMagick installed David Bateman <dbateman@free.fr> parents: 7933 diff changeset	40 #ifdef HAVE_MAGICK
6661387827d6 Allow build without GraphicsMagick installed David Bateman <dbateman@free.fr> parents: 7933 diff changeset	41
9575 55ecaefb7d0f Use pkg-config to configure GraphicsMagick++. David Grundberg <individ@acc.umu.se> parents: 9439 diff changeset	42 #include <Magick++.h>
10739 d27bd2f74137 src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation Soren Hauberg <hauberg@gmail.com> parents: 10390 diff changeset	43 #include <clocale>
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	44
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	45 // In theory, it should be enough to check the class:
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	46 // Magick::ClassType
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	47 // PseudoClass:
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	48 // Image is composed of pixels which specify an index in a color palette.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	49 // DirectClass:
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	50 // Image is composed of pixels which represent literal color values.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	51 //
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	52 // GraphicsMagick does not really distinguishes between indexed and
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	53 // normal images. After reading a file, it decides itself the optimal
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	54 // way to store the image in memory, independently of the how the
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	55 // image was stored in the file. That's what ClassType returns. While
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	56 // it seems to match the original file most of the times, this is
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	57 // not necessarily true all the times. See
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	58 // https://sourceforge.net/mailarchive/message.php?msg_id=31180507
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	59 // In addition to the ClassType, there is also ImageType which has a
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	60 // type for indexed images (PaletteType and PaletteMatteType). However,
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	61 // they also don't represent the original image. Not only does DirectClass
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	62 // can have a PaletteType, but also does a PseudoClass have non Palette
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	63 // types.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	64 //
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	65 // We can't do better without having format specific code which is
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	66 // what we are trying to avoid by using a library such as GM. We at
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	67 // least create workarounds for the most common problems.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	68 //
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	69 // 1) A grayscale jpeg image can report being indexed even though the
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	70 // JPEG format has no support for indexed images. We can at least
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	71 // fix this one.
17373 8508b8ae46a8 imread: fix identification of PNG files as indexed. Carnë Draug <carandraug@octave.org> parents: 17372 diff changeset	72 // 2) A PNG file is only an indexed image if color type orig is 3 (value comes
8508b8ae46a8 imread: fix identification of PNG files as indexed. Carnë Draug <carandraug@octave.org> parents: 17372 diff changeset	73 // from libpng)
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	74 static bool
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	75 is_indexed (const Magick::Image& img)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	76 {
18957 87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	77 bool indexed = (img.classType () == Magick::PseudoClass);
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	78 // Our problem until now is non-indexed images, being represented as indexed
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	79 // by GM. The following attempts educated guesses to undo this optimization.
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	80 if (indexed)
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	81 {
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	82 const std::string fmt = img.magick ();
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	83 if (fmt == "JPEG")
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	84 // The JPEG format does not support indexed images, but GM sometimes
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	85 // reports grayscale JPEG as indexed. Always false for JPEG.
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	86 indexed = false;
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	87 else if (fmt == "PNG")
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	88 {
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	89 // Newer versions of GM (at least does not happens with 1.3.16) will
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	90 // store values from the underlying library as image attributes. In
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	91 // the case of PNG files, this is libpng where an indexed image will
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	92 // always have a value of 3 for "color-type-orig". This property
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	93 // always has a value in libpng so if we get nothing, we assume this
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	94 // GM version does not store them and we have to go with whatever
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	95 // GM PseudoClass says.
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	96 const std::string color_type =
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	97 const_cast<Magick::Image&> (img).attribute ("PNG:IHDR.color-type-orig");
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	98 if (! color_type.empty() && color_type != "3")
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	99 indexed = false;
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	100 }
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	101 }
87cba451fd5e __magick_read__.cc: fix png check for image class in older GM (bug #42834). Carnë Draug <carandraug@octave.org> parents: 18553 diff changeset	102 return indexed;
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	103 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	104
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	105 // The depth from depth() is not always correct for us but seems to be the
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	106 // best value we can get. For example, a grayscale png image with 1 bit
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	107 // per channel should return a depth of 1 but instead we get 8.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	108 // We could check channelDepth() but then, which channel has the data
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	109 // is not straightforward. So we'd have to check all
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	110 // the channels and select the highest value. But then, I also
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	111 // have a 16bit TIFF whose depth returns 16 (correct), but all of the
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	112 // channels gives 8 (wrong). No idea why, maybe a bug in GM?
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	113 // Anyway, using depth() seems that only causes problems for binary
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	114 // images, and the problem with channelDepth() is not making set them
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	115 // all to 1. So we will guess that if all channels have depth of 1,
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	116 // then we must have a binary image.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	117 // Note that we can't use AllChannels it doesn't work for this.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	118 // Instead of checking all of the individual channels, we check one
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	119 // from RGB, CMYK, grayscale, and transparency.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	120 static octave_idx_type
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	121 get_depth (Magick::Image& img)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	122 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	123 octave_idx_type depth = img.depth ();
17373 8508b8ae46a8 imread: fix identification of PNG files as indexed. Carnë Draug <carandraug@octave.org> parents: 17372 diff changeset	124 if (depth == 8
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	125 && img.channelDepth (Magick::RedChannel) == 1
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	126 && img.channelDepth (Magick::CyanChannel) == 1
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	127 && img.channelDepth (Magick::OpacityChannel) == 1
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	128 && img.channelDepth (Magick::GrayChannel) == 1)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	129 depth = 1;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	130
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	131 return depth;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	132 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	133
17335 583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	134 // We need this in case one of the sides of the image being read has
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	135 // width 1. In those cases, the type will come as scalar instead of range
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	136 // since that's the behaviour of the colon operator (1:1:1 will be a scalar,
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	137 // not a range).
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	138 static Range
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	139 get_region_range (const octave_value& region)
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	140 {
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	141 Range output;
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	142 if (region.is_range ())
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	143 output = region.range_value ();
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	144 else if (region.is_scalar_type ())
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	145 {
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	146 double value = region.scalar_value ();
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	147 output = Range (value, value);
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	148 }
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	149 else
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	150 error ("__magick_read__: unknow datatype for Region option");
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	151
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	152 return output;
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	153 }
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	154
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	155 static std::map<std::string, octave_idx_type>
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	156 calculate_region (const octave_scalar_map& options)
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	157 {
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	158 std::map<std::string, octave_idx_type> region;
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	159 const Cell pixel_region = options.getfield ("region").cell_value ();
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	160
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	161 // Subtract 1 to account for 0 indexing.
17335 583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	162 const Range rows = get_region_range (pixel_region (0));
583306fe7e4f Fix reading of images with height or width of 1 pixel. Carnë Draug <carandraug@octave.org> parents: 17334 diff changeset	163 const Range cols = get_region_range (pixel_region (1));
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	164 region["row_start"] = rows.base () -1;
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	165 region["col_start"] = cols.base () -1;
17138 96526baf7423 Fix reading of images using PixelRegion with ranges ending before the limit. Carnë Draug <carandraug@octave.org> parents: 17134 diff changeset	166 region["row_end"] = rows.max () -1;
96526baf7423 Fix reading of images using PixelRegion with ranges ending before the limit. Carnë Draug <carandraug@octave.org> parents: 17134 diff changeset	167 region["col_end"] = cols.max () -1;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	168
17138 96526baf7423 Fix reading of images using PixelRegion with ranges ending before the limit. Carnë Draug <carandraug@octave.org> parents: 17134 diff changeset	169 // Length of the area to load into the Image Pixel Cache. We use max and
96526baf7423 Fix reading of images using PixelRegion with ranges ending before the limit. Carnë Draug <carandraug@octave.org> parents: 17134 diff changeset	170 // min to account for cases where last element of range is the range limit.
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	171 region["row_cache"] = region["row_end"] - region["row_start"] +1;
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	172 region["col_cache"] = region["col_end"] - region["col_start"] +1;
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	173
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	174 // How much we have to shift in the memory when doing the loops.
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	175 region["row_shift"] = region["col_cache"] * rows.inc ();
17138 96526baf7423 Fix reading of images using PixelRegion with ranges ending before the limit. Carnë Draug <carandraug@octave.org> parents: 17134 diff changeset	176 region["col_shift"] = region["col_cache"] *
96526baf7423 Fix reading of images using PixelRegion with ranges ending before the limit. Carnë Draug <carandraug@octave.org> parents: 17134 diff changeset	177 (region["row_cache"] + rows.inc () -1) - cols.inc ();
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	178
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	179 // The actual height and width of the output image
17138 96526baf7423 Fix reading of images using PixelRegion with ranges ending before the limit. Carnë Draug <carandraug@octave.org> parents: 17134 diff changeset	180 region["row_out"] = rows.nelem ();
96526baf7423 Fix reading of images using PixelRegion with ranges ending before the limit. Carnë Draug <carandraug@octave.org> parents: 17134 diff changeset	181 region["col_out"] = cols.nelem ();
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	182
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	183 return region;
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	184 }
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	185
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	186 static octave_value_list
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	187 read_maps (Magick::Image& img)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	188 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	189 // can't call colorMapSize on const Magick::Image
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	190 const octave_idx_type mapsize = img.colorMapSize ();
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	191 Matrix cmap = Matrix (mapsize, 3); // colormap
17372 63b53ea33a8b imread: fix returning multiple variables. Carnë Draug <carandraug@octave.org> parents: 17362 diff changeset	192 ColumnVector amap = ColumnVector (mapsize); // alpha map
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	193 for (octave_idx_type i = 0; i < mapsize; i++)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	194 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	195 const Magick::ColorRGB c = img.colorMap (i);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	196 cmap(i,0) = c.red ();
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	197 cmap(i,1) = c.green ();
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	198 cmap(i,2) = c.blue ();
17372 63b53ea33a8b imread: fix returning multiple variables. Carnë Draug <carandraug@octave.org> parents: 17362 diff changeset	199 amap(i) = c.alpha ();
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	200 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	201 octave_value_list maps;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	202 maps(0) = cmap;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	203 maps(1) = amap;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	204 return maps;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	205 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	206
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	207 template <class T>
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	208 static octave_value_list
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	209 read_indexed_images (const std::vector<Magick::Image>& imvec,
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	210 const Array<octave_idx_type>& frameidx,
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	211 const octave_idx_type& nargout,
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	212 const octave_scalar_map& options)
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	213 {
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	214 typedef typename T::element_type P;
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	215
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	216 octave_value_list retval (3, Matrix ());
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	217
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	218 std::map<std::string, octave_idx_type> region = calculate_region (options);
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	219 const octave_idx_type nFrames = frameidx.length ();
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	220 const octave_idx_type nRows = region["row_out"];
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	221 const octave_idx_type nCols = region["col_out"];
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	222
17240 d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	223 // imvec has all of the pages of a file, even the ones we are not
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	224 // interested in. We will use the first image that we will be actually
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	225 // reading to get information about the image.
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	226 const octave_idx_type def_elem = frameidx(0);
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	227
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	228 T img = T (dim_vector (nRows, nCols, 1, nFrames));
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	229 P* img_fvec = img.fortran_vec ();
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	230
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	231 const octave_idx_type row_start = region["row_start"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	232 const octave_idx_type col_start = region["col_start"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	233 const octave_idx_type row_shift = region["row_shift"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	234 const octave_idx_type col_shift = region["col_shift"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	235 const octave_idx_type row_cache = region["row_cache"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	236 const octave_idx_type col_cache = region["col_cache"];
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	237
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	238 // When reading PixelPackets from the Image Pixel Cache, they come in
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	239 // row major order. So we keep moving back and forth there so we can
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	240 // write the image in column major order.
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	241 octave_idx_type idx = 0;
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	242 for (octave_idx_type frame = 0; frame < nFrames; frame++)
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	243 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	244 OCTAVE_QUIT;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	245 imvec[frameidx(frame)].getConstPixels (col_start, row_start,
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	246 col_cache, row_cache);
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	247
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	248 const Magick::IndexPacket *pix
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	249 = imvec[frameidx(frame)].getConstIndexes ();
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	250
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	251 for (octave_idx_type col = 0; col < nCols; col++)
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	252 {
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	253 for (octave_idx_type row = 0; row < nRows; row++)
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	254 {
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	255 img_fvec[idx++] = static_cast<P> (*pix);
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	256 pix += row_shift;
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	257 }
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	258 pix -= col_shift;
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	259 }
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	260 }
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	261 retval(0) = octave_value (img);
7933 54e414cc106b style fixes John W. Eaton <jwe@octave.org> parents: 7932 diff changeset	262
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	263 // Only bother reading the colormap if it was requested as output.
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	264 if (nargout > 1)
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	265 {
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	266 // In theory, it should be possible for each frame of an image to
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	267 // have different colormaps but for Matlab compatibility, we only
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	268 // return the colormap of the first frame. To obtain the colormaps
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	269 // of different frames, one needs can either use imfinfo or a for
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	270 // loop around imread.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	271 const octave_value_list maps =
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	272 read_maps (const_cast<Magick::Image&> (imvec[frameidx(def_elem)]));
10100 dd4d4b14b340 __magick_read__.cc: no need to explicitly call chop_trailing_singletons now John W. Eaton <jwe@octave.org> parents: 9575 diff changeset	273
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	274 retval(1) = maps(0);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	275
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	276 // only interpret alpha channel if it exists and was requested as output
17240 d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	277 if (imvec[def_elem].matte () && nargout >= 3)
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	278 {
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	279 const Matrix amap = maps(1).matrix_value ();
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	280 const double* amap_fvec = amap.fortran_vec ();
7933 54e414cc106b style fixes John W. Eaton <jwe@octave.org> parents: 7932 diff changeset	281
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	282 NDArray alpha (dim_vector (nRows, nCols, 1, nFrames));
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	283 double* alpha_fvec = alpha.fortran_vec ();
7933 54e414cc106b style fixes John W. Eaton <jwe@octave.org> parents: 7932 diff changeset	284
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	285 // GraphicsMagick stores the alpha values inverted, i.e.,
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	286 // 1 for transparent and 0 for opaque so we fix that here.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	287 const octave_idx_type nPixels = alpha.numel ();
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	288 for (octave_idx_type pix = 0; pix < nPixels; pix++)
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	289 alpha_fvec[pix] = 1 - amap_fvec[static_cast<int> (img_fvec[3])];
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	290
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	291 retval(2) = alpha;
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	292 }
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	293 }
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	294
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	295 return retval;
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	296 }
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	297
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	298 // This function is highly repetitive, a bunch of for loops that are
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	299 // very similar to account for different image types. They are different
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	300 // enough that trying to reduce the copy and paste would decrease its
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	301 // readability too much.
10193 1a4074e277fe undo unintended change to __magick_read__.cc John W. Eaton <jwe@octave.org> parents: 10191 diff changeset	302 template <class T>
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	303 octave_value_list
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	304 read_images (std::vector<Magick::Image>& imvec,
17116 59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	305 const Array<octave_idx_type>& frameidx,
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	306 const octave_idx_type& nargout,
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	307 const octave_scalar_map& options)
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	308 {
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	309 typedef typename T::element_type P;
13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	310
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	311 octave_value_list retval (3, Matrix ());
d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	312
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	313 std::map<std::string, octave_idx_type> region = calculate_region (options);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	314 const octave_idx_type nFrames = frameidx.length ();
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	315 const octave_idx_type nRows = region["row_out"];
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	316 const octave_idx_type nCols = region["col_out"];
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	317 T img;
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	318
17240 d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	319 // imvec has all of the pages of a file, even the ones we are not
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	320 // interested in. We will use the first image that we will be actually
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	321 // reading to get information about the image.
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	322 const octave_idx_type def_elem = frameidx(0);
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	323
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	324 const octave_idx_type row_start = region["row_start"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	325 const octave_idx_type col_start = region["col_start"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	326 const octave_idx_type row_shift = region["row_shift"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	327 const octave_idx_type col_shift = region["col_shift"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	328 const octave_idx_type row_cache = region["row_cache"];
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	329 const octave_idx_type col_cache = region["col_cache"];
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	330
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	331 // GraphicsMagick (GM) keeps the image values in memory using whatever
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	332 // QuantumDepth it was built with independently of the original image
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	333 // bitdepth. Basically this means that if GM was built with quantum 16
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	334 // all values are scaled in the uint16 range. If the original image
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	335 // had an 8 bit depth, we need to rescale it for that range.
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	336 // However, if the image had a bitdepth of 32, then we will be returning
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	337 // a floating point image. In this case, the values need to be rescaled
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	338 // for the range [0 1] (this is what Matlab has documented on the page
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	339 // about image types but in some cases seems to be doing something else.
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	340 // See bug #39249).
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	341 // Finally, we must do the division ourselves (set a divisor) instead of
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	342 // using quantumOperator for the cases where we will be returning floating
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	343 // point and want things in the range [0 1]. This is the same reason why
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	344 // the divisor is of type double.
17149 73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	345 // uint64_t is used in expression because default 32-bit value overflows
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	346 // when depth() is 32.
17147 35a1bd41aa02 Fix reading of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17139 diff changeset	347 // TODO in the next release of GraphicsMagick, MaxRGB should be replaced
35a1bd41aa02 Fix reading of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17139 diff changeset	348 // with QuantumRange since MaxRGB is already deprecated in ImageMagick.
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	349 double divisor;
17240 d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	350 if (imvec[def_elem].depth () == 32)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	351 divisor = std::numeric_limits<uint32_t>::max ();
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	352 else
17240 d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	353 divisor = MaxRGB / ((uint64_t (1) << imvec[def_elem].depth ()) - 1);
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	354
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	355 // FIXME: this workaround should probably be fixed in GM by creating a
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	356 // new ImageType BilevelMatteType
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	357 // Despite what GM documentation claims, opacity is not only on the types
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	358 // with Matte on the name. It is possible that an image is completely
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	359 // black (1 color), and have a second channel set for transparency (2nd
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	360 // color). Its type will be bilevel since there is no BilevelMatte. The
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	361 // only way to check for this seems to be by checking matte ().
17240 d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	362 Magick::ImageType type = imvec[def_elem].type ();
d757c98636d8 Use first image to be read rather than first image in file to set defaults. Carnë Draug <carandraug@octave.org> parents: 17239 diff changeset	363 if (type == Magick::BilevelType && imvec[def_elem].matte ())
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	364 type = Magick::GrayscaleMatteType;
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	365
17149 73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	366 // FIXME: ImageType is the type being used to represent the image in memory
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	367 // by GM. The real type may be different (see among others bug #36820). For
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	368 // example, a png file where all channels are equal may report being
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	369 // grayscale or even bilevel. But we must always return the real image in
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	370 // file. In some cases, the original image attributes are stored in the
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	371 // attributes but this is undocumented. This should be fixed in GM so that
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	372 // a method such as original_type returns an actual Magick::ImageType
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	373 if (imvec[0].magick () == "PNG")
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	374 {
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	375 // These values come from libpng, not GM:
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	376 // Grayscale = 0
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	377 // Palette = 2 + 1
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	378 // RGB = 2
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	379 // RGB + Alpha = 2 + 4
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	380 // Grayscale + Alpha = 4
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	381 // We won't bother with case 3 (palette) since those should be
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	382 // read by the function to read indexed images
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	383 const std::string type_str
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	384 = imvec[0].attribute ("PNG:IHDR.color-type-orig");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	385
17149 73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	386 if (type_str == "0")
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	387 type = Magick::GrayscaleType;
17149 73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	388 else if (type_str == "2")
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	389 type = Magick::TrueColorType;
17149 73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	390 else if (type_str == "6")
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	391 type = Magick::TrueColorMatteType;
17149 73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	392 else if (type_str == "4")
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	393 type = Magick::GrayscaleMatteType;
17239 d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	394 // Color types 0, 2, and 3 can also have alpha channel, conveyed
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	395 // via the "tRNS" chunk. For 0 and 2, it's limited to GIF-style
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	396 // binary transparency, while 3 can have any level of alpha per
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	397 // palette entry. We thus must check matte() to see if the image
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	398 // really doesn't have an alpha channel.
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	399 if (imvec[0].matte ())
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	400 {
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	401 if (type == Magick::GrayscaleType)
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	402 type = Magick::GrayscaleMatteType;
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	403 else if (type == Magick::TrueColorType)
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	404 type = Magick::TrueColorMatteType;
d6467d6dfb83 Fix reading of alpha channel stored as tRNS chunk in PNG files. Carnë Draug <carandraug@octave.org> parents: 17235 diff changeset	405 }
17149 73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	406 }
73a3c1580974 Correctly identify PNG image types (bug #32986, bug #36820 and bug #37689) Carnë Draug <carandraug@octave.org> parents: 17147 diff changeset	407
17116 59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	408 // If the alpha channel was not requested, treat images as if
59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	409 // it doesn't exist.
59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	410 if (nargout < 3)
59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	411 {
59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	412 switch (type)
59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	413 {
59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	414 case Magick::GrayscaleMatteType:
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	415 type = Magick::GrayscaleType;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	416 break;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	417
17116 59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	418 case Magick::PaletteMatteType:
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	419 type = Magick::PaletteType;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	420 break;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	421
17116 59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	422 case Magick::TrueColorMatteType:
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	423 type = Magick::TrueColorType;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	424 break;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	425
17116 59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	426 case Magick::ColorSeparationMatteType:
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	427 type = Magick::ColorSeparationType;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	428 break;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	429
17116 59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	430 default:
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	431 // Do nothing other than silencing warnings about enumeration
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	432 // values not being handled in switch.
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	433 ;
17116 59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	434 }
59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	435 }
59acfe9209dd Do not read alpha channel from image if output not requested. Carnë Draug <carandraug@octave.org> parents: 17110 diff changeset	436
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	437 const octave_idx_type colour_stride = nRows * nCols;
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	438 switch (type)
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	439 {
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	440 case Magick::BilevelType: // Monochrome bi-level image
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	441 case Magick::GrayscaleType: // Grayscale image
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	442 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	443 img = T (dim_vector (nRows, nCols, 1, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	444 P *img_fvec = img.fortran_vec ();
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	445
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	446 octave_idx_type idx = 0;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	447 for (octave_idx_type frame = 0; frame < nFrames; frame++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	448 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	449 OCTAVE_QUIT;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	450 const Magick::PixelPacket *pix
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	451 = imvec[frameidx(frame)].getConstPixels (col_start, row_start,
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	452 col_cache, row_cache);
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	453
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	454 for (octave_idx_type col = 0; col < nCols; col++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	455 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	456 for (octave_idx_type row = 0; row < nRows; row++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	457 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	458 img_fvec[idx++] = pix->red / divisor;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	459 pix += row_shift;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	460 }
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	461 pix -= col_shift;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	462 }
13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	463 }
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	464 break;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	465 }
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	466
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	467 case Magick::GrayscaleMatteType: // Grayscale image with opacity
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	468 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	469 img = T (dim_vector (nRows, nCols, 1, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	470 T alpha (dim_vector (nRows, nCols, 1, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	471 P *img_fvec = img.fortran_vec ();
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	472 P *a_fvec = alpha.fortran_vec ();
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	473
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	474 octave_idx_type idx = 0;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	475 for (octave_idx_type frame = 0; frame < nFrames; frame++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	476 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	477 OCTAVE_QUIT;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	478 const Magick::PixelPacket *pix
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	479 = imvec[frameidx(frame)].getConstPixels (col_start, row_start,
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	480 col_cache, row_cache);
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	481
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	482 for (octave_idx_type col = 0; col < nCols; col++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	483 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	484 for (octave_idx_type row = 0; row < nRows; row++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	485 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	486 img_fvec[idx] = pix->red / divisor;
17147 35a1bd41aa02 Fix reading of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17139 diff changeset	487 a_fvec[idx] = (MaxRGB - pix->opacity) / divisor;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	488 pix += row_shift;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	489 idx++;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	490 }
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	491 pix -= col_shift;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	492 }
13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	493 }
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	494 retval(2) = alpha;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	495 break;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	496 }
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	497
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	498 case Magick::PaletteType: // Indexed color (palette) image
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	499 case Magick::TrueColorType: // Truecolor image
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	500 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	501 img = T (dim_vector (nRows, nCols, 3, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	502 P *img_fvec = img.fortran_vec ();
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	503
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	504 const octave_idx_type frame_stride = colour_stride * 3;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	505 for (octave_idx_type frame = 0; frame < nFrames; frame++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	506 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	507 OCTAVE_QUIT;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	508 const Magick::PixelPacket *pix
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	509 = imvec[frameidx(frame)].getConstPixels (col_start, row_start,
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	510 col_cache, row_cache);
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	511
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	512 octave_idx_type idx = 0;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	513 P *rbuf = img_fvec;
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	514 P *gbuf = img_fvec + colour_stride;
30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	515 P bbuf = img_fvec + colour_stride 2;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	516
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	517 for (octave_idx_type col = 0; col < nCols; col++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	518 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	519 for (octave_idx_type row = 0; row < nRows; row++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	520 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	521 rbuf[idx] = pix->red / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	522 gbuf[idx] = pix->green / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	523 bbuf[idx] = pix->blue / divisor;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	524 pix += row_shift;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	525 idx++;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	526 }
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	527 pix -= col_shift;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	528 }
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	529 img_fvec += frame_stride;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	530 }
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	531 break;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	532 }
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	533
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	534 case Magick::PaletteMatteType: // Indexed color image with opacity
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	535 case Magick::TrueColorMatteType: // Truecolor image with opacity
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	536 {
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	537 img = T (dim_vector (nRows, nCols, 3, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	538 T alpha (dim_vector (nRows, nCols, 1, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	539 P *img_fvec = img.fortran_vec ();
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	540 P *a_fvec = alpha.fortran_vec ();
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	541
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	542 const octave_idx_type frame_stride = colour_stride * 3;
30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	543
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	544 // Unlike the index for the other channels, this one won't need
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	545 // to be reset on each frame since it's a separate matrix.
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	546 octave_idx_type a_idx = 0;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	547 for (octave_idx_type frame = 0; frame < nFrames; frame++)
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	548 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	549 OCTAVE_QUIT;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	550 const Magick::PixelPacket *pix
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	551 = imvec[frameidx(frame)].getConstPixels (col_start, row_start,
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	552 col_cache, row_cache);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	553
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	554 octave_idx_type idx = 0;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	555 P *rbuf = img_fvec;
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	556 P *gbuf = img_fvec + colour_stride;
30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	557 P bbuf = img_fvec + colour_stride 2;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	558
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	559 for (octave_idx_type col = 0; col < nCols; col++)
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	560 {
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	561 for (octave_idx_type row = 0; row < nRows; row++)
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	562 {
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	563 rbuf[idx] = pix->red / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	564 gbuf[idx] = pix->green / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	565 bbuf[idx] = pix->blue / divisor;
17147 35a1bd41aa02 Fix reading of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17139 diff changeset	566 a_fvec[a_idx++] = (MaxRGB - pix->opacity) / divisor;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	567 pix += row_shift;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	568 idx++;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	569 }
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	570 pix -= col_shift;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	571 }
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	572 img_fvec += frame_stride;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	573 }
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	574 retval(2) = alpha;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	575 break;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	576 }
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	577
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	578 case Magick::ColorSeparationType: // Cyan/Magenta/Yellow/Black (CMYK) image
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	579 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	580 img = T (dim_vector (nRows, nCols, 4, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	581 P *img_fvec = img.fortran_vec ();
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	582
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	583 const octave_idx_type frame_stride = colour_stride * 4;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	584 for (octave_idx_type frame = 0; frame < nFrames; frame++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	585 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	586 OCTAVE_QUIT;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	587 const Magick::PixelPacket *pix
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	588 = imvec[frameidx(frame)].getConstPixels (col_start, row_start,
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	589 col_cache, row_cache);
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	590
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	591 octave_idx_type idx = 0;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	592 P *cbuf = img_fvec;
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	593 P *mbuf = img_fvec + colour_stride;
30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	594 P ybuf = img_fvec + colour_stride 2;
30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	595 P kbuf = img_fvec + colour_stride 3;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	596
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	597 for (octave_idx_type col = 0; col < nCols; col++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	598 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	599 for (octave_idx_type row = 0; row < nRows; row++)
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	600 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	601 cbuf[idx] = pix->red / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	602 mbuf[idx] = pix->green / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	603 ybuf[idx] = pix->blue / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	604 kbuf[idx] = pix->opacity / divisor;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	605 pix += row_shift;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	606 idx++;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	607 }
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	608 pix -= col_shift;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	609 }
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	610 img_fvec += frame_stride;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	611 }
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	612 break;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	613 }
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	614
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	615 // Cyan, magenta, yellow, and black with alpha (opacity) channel
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	616 case Magick::ColorSeparationMatteType:
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	617 {
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	618 img = T (dim_vector (nRows, nCols, 4, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	619 T alpha (dim_vector (nRows, nCols, 1, nFrames));
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	620 P *img_fvec = img.fortran_vec ();
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	621 P *a_fvec = alpha.fortran_vec ();
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	622
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	623 const octave_idx_type frame_stride = colour_stride * 4;
30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	624
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	625 // Unlike the index for the other channels, this one won't need
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	626 // to be reset on each frame since it's a separate matrix.
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	627 octave_idx_type a_idx = 0;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	628 for (octave_idx_type frame = 0; frame < nFrames; frame++)
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	629 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	630 OCTAVE_QUIT;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	631 const Magick::PixelPacket *pix
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	632 = imvec[frameidx(frame)].getConstPixels (col_start, row_start,
c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	633 col_cache, row_cache);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	634 // Note that for CMYKColorspace + matte (CMYKA), the opacity is
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	635 // stored in the assocated IndexPacket.
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	636 const Magick::IndexPacket *apix
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	637 = imvec[frameidx(frame)].getConstIndexes ();
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	638
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	639 octave_idx_type idx = 0;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	640 P *cbuf = img_fvec;
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	641 P *mbuf = img_fvec + colour_stride;
30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	642 P ybuf = img_fvec + colour_stride 2;
30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	643 P kbuf = img_fvec + colour_stride 3;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	644
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	645 for (octave_idx_type col = 0; col < nCols; col++)
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	646 {
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	647 for (octave_idx_type row = 0; row < nRows; row++)
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	648 {
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	649 cbuf[idx] = pix->red / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	650 mbuf[idx] = pix->green / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	651 ybuf[idx] = pix->blue / divisor;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	652 kbuf[idx] = pix->opacity / divisor;
17147 35a1bd41aa02 Fix reading of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17139 diff changeset	653 a_fvec[a_idx++] = (MaxRGB - *apix) / divisor;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	654 pix += row_shift;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	655 idx++;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	656 }
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	657 pix -= col_shift;
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	658 }
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	659 img_fvec += frame_stride;
10295 13d382fc758b imread: Make reading non-indexed images faster David Grundberg <davidg@cs.umu.se> parents: 10193 diff changeset	660 }
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	661 retval(2) = alpha;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	662 break;
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	663 }
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	664
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	665 default:
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	666 error ("__magick_read__: unknown Magick++ image type");
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	667 return retval;
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	668 }
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	669
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	670 retval(0) = img;
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	671 return retval;
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	672 }
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	673
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	674 // Read a file into vector of image objects.
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	675 void static
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	676 read_file (const std::string& filename, std::vector<Magick::Image>& imvec)
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	677 {
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	678 try
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	679 {
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	680 Magick::readImages (&imvec, filename);
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	681 }
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	682 catch (Magick::Warning& w)
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	683 {
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	684 warning ("Magick++ warning: %s", w.what ());
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	685 }
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	686 catch (Magick::Exception& e)
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	687 {
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	688 error ("Magick++ exception: %s", e.what ());
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	689 error_state = 1;
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	690 }
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	691 }
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	692
10947 dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	693 static void
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	694 maybe_initialize_magick (void)
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	695 {
10390 ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	696 static bool initialized = false;
ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	697
ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	698 if (! initialized)
ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	699 {
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	700 // Save locale as GraphicsMagick might change this (fixed in
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	701 // GraphicsMagick since version 1.3.13 released on December 24, 2011)
10739 d27bd2f74137 src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation Soren Hauberg <hauberg@gmail.com> parents: 10390 diff changeset	702 const char *static_locale = setlocale (LC_ALL, NULL);
d27bd2f74137 src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation Soren Hauberg <hauberg@gmail.com> parents: 10390 diff changeset	703 const std::string locale (static_locale);
d27bd2f74137 src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation Soren Hauberg <hauberg@gmail.com> parents: 10390 diff changeset	704
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	705 const std::string program_name
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	706 = octave_env::get_program_invocation_name ();
10390 ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	707 Magick::InitializeMagick (program_name.c_str ());
ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	708
10739 d27bd2f74137 src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation Soren Hauberg <hauberg@gmail.com> parents: 10390 diff changeset	709 // Restore locale from before GraphicsMagick initialisation
d27bd2f74137 src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation Soren Hauberg <hauberg@gmail.com> parents: 10390 diff changeset	710 setlocale (LC_ALL, locale.c_str ());
d27bd2f74137 src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation Soren Hauberg <hauberg@gmail.com> parents: 10390 diff changeset	711
11036 169f59f626d3 Add check for QuantumDepth at initialization of Magick and an associated warning John Swensen <jpswensen@gmail.com>* parents: 11035 diff changeset	712 if (QuantumDepth < 32)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	713 warning ("your version of %s limits images to %d bits per pixel",
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	714 MagickPackageName, QuantumDepth);
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	715
10390 ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	716 initialized = true;
ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	717 }
16983 4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	718 }
10947 dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	719 #endif
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	720
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	721 DEFUN_DLD (__magick_read__, args, nargout,
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	722 "-- texinfo --\n\
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	723 @deftypefn {Loadable Function} {[@var{img}, @var{map}, @var{alpha}] =} __magick_read__ (@var{fname}, @var{options})\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	724 Read image with GraphicsMagick or ImageMagick.\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	725 \n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	726 This is a private internal function not intended for direct use. Instead\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	727 use @code{imread}.\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	728 \n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	729 @seealso{imfinfo, imformats, imread, imwrite}\n\
10947 dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	730 @end deftypefn")
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	731 {
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	732 octave_value_list output;
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	733
16983 4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	734 #ifndef HAVE_MAGICK
4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	735 gripe_disabled_feature ("imread", "Image IO");
4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	736 #else
10947 dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	737
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	738 maybe_initialize_magick ();
10390 ad0b54ae206a __magick_read__ (F__magick_read__): call Magick::InitializeMagick John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	739
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	740 if (args.length () != 2 \|\| ! args(0).is_string ())
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	741 {
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	742 print_usage ();
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	743 return output;
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	744 }
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	745
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	746 const octave_scalar_map options = args(1).scalar_map_value ();
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	747 if (error_state)
10778 6035bf68a755 Support imread('file', 'frames', 'all') (Feature Request #30365) David Bateman <dbateman@free.fr> parents: 10739 diff changeset	748 {
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	749 error ("__magick_read__: OPTIONS must be a struct");
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	750 return output;
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	751 }
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	752
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	753 std::vector<Magick::Image> imvec;
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	754 read_file (args(0).string_value (), imvec);
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	755 if (error_state)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	756 return output;
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	757
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	758 // Prepare an Array with the indexes for the requested frames.
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	759 const octave_idx_type nFrames = imvec.size ();
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	760 Array<octave_idx_type> frameidx;
17118 c97a26408ee0 Implement PixelRegion option for imread(). Carnë Draug <carandraug@octave.org> parents: 17116 diff changeset	761 const octave_value indexes = options.getfield ("index");
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	762 if (indexes.is_string () && indexes.string_value () == "all")
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	763 {
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	764 frameidx.resize (dim_vector (1, nFrames));
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	765 for (octave_idx_type i = 0; i < nFrames; i++)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	766 frameidx(i) = i;
10778 6035bf68a755 Support imread('file', 'frames', 'all') (Feature Request #30365) David Bateman <dbateman@free.fr> parents: 10739 diff changeset	767 }
6035bf68a755 Support imread('file', 'frames', 'all') (Feature Request #30365) David Bateman <dbateman@free.fr> parents: 10739 diff changeset	768 else
6035bf68a755 Support imread('file', 'frames', 'all') (Feature Request #30365) David Bateman <dbateman@free.fr> parents: 10739 diff changeset	769 {
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	770 frameidx = indexes.int_vector_value ();
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	771 if (error_state)
10778 6035bf68a755 Support imread('file', 'frames', 'all') (Feature Request #30365) David Bateman <dbateman@free.fr> parents: 10739 diff changeset	772 {
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	773 error ("__magick_read__: invalid value for Index/Frame");
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	774 return output;
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	775 }
16989 7a69ab84b8c9 __magick_write__: confirm file exists before reading to append. Carnë Draug <carandraug@octave.org> parents: 16988 diff changeset	776 // Fix indexes from base 1 to base 0, and at the same time, make
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	777 // sure none of the indexes is outside the range of image number.
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	778 const octave_idx_type n = frameidx.nelem ();
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	779 for (octave_idx_type i = 0; i < n; i++)
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	780 {
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	781 frameidx(i)--;
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	782 if (frameidx(i) < 0 \|\| frameidx(i) > nFrames - 1)
10778 6035bf68a755 Support imread('file', 'frames', 'all') (Feature Request #30365) David Bateman <dbateman@free.fr> parents: 10739 diff changeset	783 {
17912 01496d4811b1 imread: deal elegantly with multiples frames of different sizes. Carnë Draug <carandraug@octave.org> parents: 17861 diff changeset	784 // We do this check inside the loop because frameidx does not
01496d4811b1 imread: deal elegantly with multiples frames of different sizes. Carnë Draug <carandraug@octave.org> parents: 17861 diff changeset	785 // need to be ordered (this is a feature and even allows for
01496d4811b1 imread: deal elegantly with multiples frames of different sizes. Carnë Draug <carandraug@octave.org> parents: 17861 diff changeset	786 // some frames to be read multiple times).
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	787 error ("imread: index/frames specified are outside the number of images");
10778 6035bf68a755 Support imread('file', 'frames', 'all') (Feature Request #30365) David Bateman <dbateman@free.fr> parents: 10739 diff changeset	788 return output;
6035bf68a755 Support imread('file', 'frames', 'all') (Feature Request #30365) David Bateman <dbateman@free.fr> parents: 10739 diff changeset	789 }
8053 89a512e8ec43 Replace leading tabs with spaces. scofield@scofield parents: 7974 diff changeset	790 }
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	791 }
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	792
17912 01496d4811b1 imread: deal elegantly with multiples frames of different sizes. Carnë Draug <carandraug@octave.org> parents: 17861 diff changeset	793 // Check that all frames have the same size. We don't do this at the same
01496d4811b1 imread: deal elegantly with multiples frames of different sizes. Carnë Draug <carandraug@octave.org> parents: 17861 diff changeset	794 // time we decode the image because that's done in many different places,
01496d4811b1 imread: deal elegantly with multiples frames of different sizes. Carnë Draug <carandraug@octave.org> parents: 17861 diff changeset	795 // to cover the different types of images which would lead to a lot of
01496d4811b1 imread: deal elegantly with multiples frames of different sizes. Carnë Draug <carandraug@octave.org> parents: 17861 diff changeset	796 // copy and paste.
17916 c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	797 {
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	798 const unsigned int nRows = imvec[frameidx(0)].rows ();
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	799 const unsigned int nCols = imvec[frameidx(0)].columns ();
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	800 const octave_idx_type n = frameidx.nelem ();
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	801 for (octave_idx_type frame = 0; frame < n; frame++)
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	802 {
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	803 if (nRows != imvec[frameidx(frame)].rows () \|\|
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	804 nCols != imvec[frameidx(frame)].columns ())
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	805 {
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	806 error ("imread: all frames must have the same size but frame %i is different",
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	807 frameidx(frame) +1);
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	808 return output;
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	809 }
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	810 }
c7f089c560cc imread: avoid out of bounds error when reading part of multipage image file. Carnë Draug <carandraug@octave.org> parents: 17912 diff changeset	811 }
17912 01496d4811b1 imread: deal elegantly with multiples frames of different sizes. Carnë Draug <carandraug@octave.org> parents: 17861 diff changeset	812
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	813 const octave_idx_type depth = get_depth (imvec[frameidx(0)]);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	814 if (is_indexed (imvec[frameidx(0)]))
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	815 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	816 if (depth <= 1)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	817 output = read_indexed_images<boolNDArray> (imvec, frameidx,
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	818 nargout, options);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	819 else if (depth <= 8)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	820 output = read_indexed_images<uint8NDArray> (imvec, frameidx,
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	821 nargout, options);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	822 else if (depth <= 16)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	823 output = read_indexed_images<uint16NDArray> (imvec, frameidx,
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	824 nargout, options);
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	825 else
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	826 {
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	827 error ("imread: indexed images with depths greater than 16-bit are not supported");
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	828 return output;
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	829 }
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	830 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11585 diff changeset	831
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	832 else
a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	833 {
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	834 if (depth <= 1)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	835 output = read_images<boolNDArray> (imvec, frameidx, nargout, options);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	836 else if (depth <= 8)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	837 output = read_images<uint8NDArray> (imvec, frameidx, nargout, options);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	838 else if (depth <= 16)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	839 output = read_images<uint16NDArray> (imvec, frameidx, nargout, options);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	840 else if (depth <= 32)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	841 output = read_images<FloatNDArray> (imvec, frameidx, nargout, options);
17110 95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	842 else
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	843 {
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	844 error ("imread: reading of images with %i-bit depth is not supported",
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	845 depth);
95055b814d35 imread: implement reading of images with 32 bitdepth and alpha channels. Carnë Draug <carandraug@octave.org> parents: 16996 diff changeset	846 }
16996 a1d091243d11 Read alpha values from indexed images. Always read indexes from indexed images. Carnë Draug <carandraug@octave.org> parents: 16989 diff changeset	847 }
7937 6661387827d6 Allow build without GraphicsMagick installed David Bateman <dbateman@free.fr> parents: 7933 diff changeset	848
6661387827d6 Allow build without GraphicsMagick installed David Bateman <dbateman@free.fr> parents: 7933 diff changeset	849 #endif
7925 9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	850 return output;
9316b59903c9 Add original imread() files (from octave-forge) to core octave. Thomas L. Scofield <scofield AT calvin DOT edu> parents: diff changeset	851 }
7926 d74f996e005d __magick_read__.cc: configuration and style fixes John W. Eaton <jwe@octave.org> parents: 7925 diff changeset	852
12805 3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	853 /*
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	854 ## No test needed for internal helper function.
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	855 %!assert (1)
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	856 */
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	857
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	858 #ifdef HAVE_MAGICK
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	859
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	860 template <class T>
17228 2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	861 static uint32NDArray
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	862 img_float2uint (const T& img)
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	863 {
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	864 typedef typename T::element_type P;
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	865 uint32NDArray out (img.dims ());
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	866
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	867 octave_uint32* out_fvec = out.fortran_vec ();
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	868 const P* img_fvec = img.fortran_vec ();
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	869
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	870 const octave_uint32 max = octave_uint32::max ();
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	871 const octave_idx_type numel = img.numel ();
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	872 for (octave_idx_type idx = 0; idx < numel; idx++)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	873 out_fvec[idx] = img_fvec[idx] * max;
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	874
17228 2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	875 return out;
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	876 }
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	877
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	878 // Gets the bitdepth to be used for an Octave class, i.e, returns 8 for
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	879 // uint8, 16 for uint16, and 32 for uint32
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	880 template <class T>
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	881 static octave_idx_type
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	882 bitdepth_from_class ()
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	883 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	884 typedef typename T::element_type P;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	885 const octave_idx_type bitdepth =
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	886 sizeof (P) * std::numeric_limits<unsigned char>::digits;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	887 return bitdepth;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	888 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	889
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	890 static Magick::Image
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	891 init_enconde_image (const octave_idx_type& nCols, const octave_idx_type& nRows,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	892 const octave_idx_type& bitdepth,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	893 const Magick::ImageType& type,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	894 const Magick::ClassType& klass)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	895 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	896 Magick::Image img (Magick::Geometry (nCols, nRows), "black");
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	897 // Ensure that there are no other references to this image.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	898 img.modifyImage ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	899
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	900 img.classType (klass);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	901 img.type (type);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	902 // FIXME: for some reason, setting bitdepth doesn't seem to work for
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	903 // indexed images.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	904 img.depth (bitdepth);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	905 switch (type)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	906 {
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	907 case Magick::GrayscaleMatteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	908 case Magick::TrueColorMatteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	909 case Magick::ColorSeparationMatteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	910 case Magick::PaletteMatteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	911 img.matte (true);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	912 break;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	913
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	914 default:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	915 img.matte (false);
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	916 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	917
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	918 return img;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	919 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	920
17228 2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	921 template <class T>
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	922 static void
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	923 encode_indexed_images (std::vector<Magick::Image>& imvec,
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	924 const T& img,
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	925 const Matrix& cmap)
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	926 {
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	927 typedef typename T::element_type P;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	928 const octave_idx_type nFrames = img.ndims () < 4 ? 1 : img.dims ()(3);
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	929 const octave_idx_type nRows = img.rows ();
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	930 const octave_idx_type nCols = img.columns ();
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	931 const octave_idx_type cmap_size = cmap.rows ();
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	932 const octave_idx_type bitdepth = bitdepth_from_class<T> ();
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	933
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	934 // There is no colormap object, we need to build a new one for each frame,
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	935 // even if it's always the same. We can least get a vector for the Colors.
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	936 std::vector<Magick::ColorRGB> colormap;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	937 {
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	938 const double* cmap_fvec = cmap.fortran_vec ();
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	939 const octave_idx_type G_offset = cmap_size;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	940 const octave_idx_type B_offset = cmap_size * 2;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	941 for (octave_idx_type map_idx = 0; map_idx < cmap_size; map_idx++)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	942 colormap.push_back (Magick::ColorRGB (cmap_fvec[map_idx],
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	943 cmap_fvec[map_idx + G_offset],
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	944 cmap_fvec[map_idx + B_offset]));
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	945 }
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	946
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	947 for (octave_idx_type frame = 0; frame < nFrames; frame++)
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	948 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	949 OCTAVE_QUIT;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	950 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	951 Magick::PaletteType,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	952 Magick::PseudoClass);
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	953
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	954 // Insert colormap.
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	955 m_img.colorMapSize (cmap_size);
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	956 for (octave_idx_type map_idx = 0; map_idx < cmap_size; map_idx++)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	957 m_img.colorMap (map_idx, colormap[map_idx]);
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	958
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	959 // Why are we also setting the pixel values instead of only the
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	960 // index values? We don't know if a file format supports indexed
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	961 // images. If we only set the indexes and then try to save the
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	962 // image as JPEG for example, the indexed values get discarded,
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	963 // there is no conversion from the indexes, it's the initial values
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	964 // that get used. An alternative would be to only set the pixel
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	965 // values (no indexes), then set the image as PseudoClass and GM
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	966 // would create a colormap for us. However, we wouldn't have control
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	967 // over the order of that colormap. And that's why we set both.
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	968 Magick::PixelPacket* pix = m_img.getPixels (0, 0, nCols, nRows);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	969 Magick::IndexPacket* ind = m_img.getIndexes ();
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	970 const P* img_fvec = img.fortran_vec ();
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	971
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	972 octave_idx_type GM_idx = 0;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	973 for (octave_idx_type column = 0; column < nCols; column++)
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	974 {
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	975 for (octave_idx_type row = 0; row < nRows; row++)
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	976 {
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	977 ind[GM_idx] = double (*img_fvec);
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	978 pix[GM_idx] = m_img.colorMap (double (*img_fvec));
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	979 img_fvec++;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	980 GM_idx += nCols;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	981 }
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	982 GM_idx -= nCols * nRows - 1;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	983 }
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	984
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	985 // Save changes to underlying image.
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	986 m_img.syncPixels ();
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	987 imvec.push_back (m_img);
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	988 }
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	989 }
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	990
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	991 static void
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	992 encode_bool_image (std::vector<Magick::Image>& imvec, const boolNDArray& img)
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	993 {
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	994 const octave_idx_type nFrames = img.ndims () < 4 ? 1 : img.dims ()(3);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	995 const octave_idx_type nRows = img.rows ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	996 const octave_idx_type nCols = img.columns ();
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	997
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	998 // The initialized image will be black, this is for the other pixels
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	999 const Magick::Color white ("white");
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1000
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1001 const bool *img_fvec = img.fortran_vec ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1002 octave_idx_type img_idx = 0;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1003 for (octave_idx_type frame = 0; frame < nFrames; frame++)
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1004 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	1005 OCTAVE_QUIT;
17333 51c011825bcc __magick_write__: make sure binary images are saved as bilevel for some coders. Carnë Draug <carandraug@octave.org> parents: 17332 diff changeset	1006 // For some reason, we can't set the type to Magick::BilevelType or
51c011825bcc __magick_write__: make sure binary images are saved as bilevel for some coders. Carnë Draug <carandraug@octave.org> parents: 17332 diff changeset	1007 // the output image will be black, changing to white has no effect.
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1008 // However, this will still work fine and a binary image will be
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1009 // saved because we are setting the bitdepth to 1.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1010 Magick::Image m_img = init_enconde_image (nCols, nRows, 1,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1011 Magick::GrayscaleType,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1012 Magick::DirectClass);
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1013
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1014 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1015 octave_idx_type GM_idx = 0;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1016 for (octave_idx_type col = 0; col < nCols; col++)
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1017 {
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1018 for (octave_idx_type row = 0; row < nRows; row++)
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1019 {
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1020 if (img_fvec[img_idx])
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1021 pix[GM_idx] = white;
10979 7f49dc864f32 __magick_read__.cc: style fixes John W. Eaton <jwe@octave.org> parents: 10978 diff changeset	1022
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1023 img_idx++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1024 GM_idx += nCols;
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1025 }
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1026 GM_idx -= nCols * nRows - 1;
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1027 }
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1028 // Save changes to underlying image.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1029 m_img.syncPixels ();
17333 51c011825bcc __magick_write__: make sure binary images are saved as bilevel for some coders. Carnë Draug <carandraug@octave.org> parents: 17332 diff changeset	1030 // While we could not set it to Bilevel at the start, we can do it
51c011825bcc __magick_write__: make sure binary images are saved as bilevel for some coders. Carnë Draug <carandraug@octave.org> parents: 17332 diff changeset	1031 // here otherwise some coders won't save it as binary.
51c011825bcc __magick_write__: make sure binary images are saved as bilevel for some coders. Carnë Draug <carandraug@octave.org> parents: 17332 diff changeset	1032 m_img.type (Magick::BilevelType);
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1033 imvec.push_back (m_img);
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1034 }
272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1035 }
272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1036
272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1037 template <class T>
272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1038 static void
272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1039 encode_uint_image (std::vector<Magick::Image>& imvec,
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1040 const T& img, const T& alpha)
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1041 {
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1042 typedef typename T::element_type P;
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1043 const octave_idx_type channels = img.ndims () < 3 ? 1 : img.dims ()(2);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1044 const octave_idx_type nFrames = img.ndims () < 4 ? 1 : img.dims ()(3);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1045 const octave_idx_type nRows = img.rows ();
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1046 const octave_idx_type nCols = img.columns ();
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1047 const octave_idx_type bitdepth = bitdepth_from_class<T> ();
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1048
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1049 Magick::ImageType type;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1050 const bool has_alpha = ! alpha.is_empty ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1051 switch (channels)
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1052 {
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1053 case 1:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1054 if (has_alpha)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1055 type = Magick::GrayscaleMatteType;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1056 else
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1057 type = Magick::GrayscaleType;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1058 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1059
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1060 case 3:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1061 if (has_alpha)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1062 type = Magick::TrueColorMatteType;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1063 else
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1064 type = Magick::TrueColorType;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1065 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1066
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1067 case 4:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1068 if (has_alpha)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1069 type = Magick::ColorSeparationMatteType;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1070 else
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1071 type = Magick::ColorSeparationType;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1072 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1073
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1074 default:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1075 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1076 // __imwrite should have already filtered this cases
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1077 error ("__magick_write__: wrong size on 3rd dimension");
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1078 return;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1079 }
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1080 }
272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1081
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1082 // We will be passing the values as integers with depth as specified
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1083 // by QuantumDepth (maximum value specified by MaxRGB). This is independent
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1084 // of the actual depth of the image. GM will then convert the values but
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1085 // while in memory, it always keeps the values as specified by QuantumDepth.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1086 // From GM documentation:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1087 // Color arguments are must be scaled to fit the Quantum size according to
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1088 // the range of MaxRGB
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1089 const double divisor = static_cast<double>((uint64_t (1) << bitdepth) - 1)
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1090 / MaxRGB;
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1091
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1092 const P *img_fvec = img.fortran_vec ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1093 const P *a_fvec = alpha.fortran_vec ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1094 switch (type)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1095 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1096 case Magick::GrayscaleType:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1097 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1098 for (octave_idx_type frame = 0; frame < nFrames; frame++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1099 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	1100 OCTAVE_QUIT;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1101 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1102 type,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1103 Magick::DirectClass);
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1104
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1105 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1106 octave_idx_type GM_idx = 0;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1107 for (octave_idx_type col = 0; col < nCols; col++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1108 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1109 for (octave_idx_type row = 0; row < nRows; row++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1110 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1111 Magick::Color c;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1112 c.redQuantum (double (*img_fvec) / divisor);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1113 pix[GM_idx] = c;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1114 img_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1115 GM_idx += nCols;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1116 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1117 GM_idx -= nCols * nRows - 1;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1118 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1119 // Save changes to underlying image.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1120 m_img.syncPixels ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1121 imvec.push_back (m_img);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1122 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1123 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1124 }
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1125
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1126 case Magick::GrayscaleMatteType:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1127 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1128 for (octave_idx_type frame = 0; frame < nFrames; frame++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1129 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	1130 OCTAVE_QUIT;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1131 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1132 type,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1133 Magick::DirectClass);
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1134
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1135 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1136 octave_idx_type GM_idx = 0;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1137 for (octave_idx_type col = 0; col < nCols; col++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1138 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1139 for (octave_idx_type row = 0; row < nRows; row++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1140 {
18544 e0cc67d5a462 Fix writing of grayscale images when there is an alpha channel. Carnë Draug <carandraug@octave.org> parents: 18542 diff changeset	1141 double grey = double (*img_fvec) / divisor;
e0cc67d5a462 Fix writing of grayscale images when there is an alpha channel. Carnë Draug <carandraug@octave.org> parents: 18542 diff changeset	1142 Magick::Color c (grey, grey, grey,
e0cc67d5a462 Fix writing of grayscale images when there is an alpha channel. Carnë Draug <carandraug@octave.org> parents: 18542 diff changeset	1143 MaxRGB - (double (*a_fvec) / divisor));
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1144 pix[GM_idx] = c;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1145 img_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1146 a_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1147 GM_idx += nCols;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1148 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1149 GM_idx -= nCols * nRows - 1;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1150 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1151 // Save changes to underlying image.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1152 m_img.syncPixels ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1153 imvec.push_back (m_img);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1154 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1155 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1156 }
10979 7f49dc864f32 __magick_read__.cc: style fixes John W. Eaton <jwe@octave.org> parents: 10978 diff changeset	1157
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1158 case Magick::TrueColorType:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1159 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1160 // The fortran_vec offset for the green and blue channels
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1161 const octave_idx_type G_offset = nCols * nRows;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1162 const octave_idx_type B_offset = nCols * nRows * 2;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1163 for (octave_idx_type frame = 0; frame < nFrames; frame++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1164 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	1165 OCTAVE_QUIT;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1166 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1167 type,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1168 Magick::DirectClass);
10979 7f49dc864f32 __magick_read__.cc: style fixes John W. Eaton <jwe@octave.org> parents: 10978 diff changeset	1169
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1170 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1171 octave_idx_type GM_idx = 0;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1172 for (octave_idx_type col = 0; col < nCols; col++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1173 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1174 for (octave_idx_type row = 0; row < nRows; row++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1175 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1176 Magick::Color c (double (*img_fvec) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1177 double (img_fvec[G_offset]) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1178 double (img_fvec[B_offset]) / divisor);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1179 pix[GM_idx] = c;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1180 img_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1181 GM_idx += nCols;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1182 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1183 GM_idx -= nCols * nRows - 1;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1184 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1185 // Save changes to underlying image.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1186 m_img.syncPixels ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1187 imvec.push_back (m_img);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1188 img_fvec += B_offset;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1189 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1190 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1191 }
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1192
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1193 case Magick::TrueColorMatteType:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1194 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1195 // The fortran_vec offset for the green and blue channels
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1196 const octave_idx_type G_offset = nCols * nRows;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1197 const octave_idx_type B_offset = nCols * nRows * 2;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1198 for (octave_idx_type frame = 0; frame < nFrames; frame++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1199 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	1200 OCTAVE_QUIT;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1201 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1202 type,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1203 Magick::DirectClass);
10979 7f49dc864f32 __magick_read__.cc: style fixes John W. Eaton <jwe@octave.org> parents: 10978 diff changeset	1204
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1205 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1206 octave_idx_type GM_idx = 0;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1207 for (octave_idx_type col = 0; col < nCols; col++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1208 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1209 for (octave_idx_type row = 0; row < nRows; row++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1210 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1211 Magick::Color c (double (*img_fvec) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1212 double (img_fvec[G_offset]) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1213 double (img_fvec[B_offset]) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1214 MaxRGB - (double (*a_fvec) / divisor));
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1215 pix[GM_idx] = c;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1216 img_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1217 a_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1218 GM_idx += nCols;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1219 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1220 GM_idx -= nCols * nRows - 1;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1221 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1222 // Save changes to underlying image.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1223 m_img.syncPixels ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1224 imvec.push_back (m_img);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1225 img_fvec += B_offset;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1226 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1227 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1228 }
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1229
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1230 case Magick::ColorSeparationType:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1231 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1232 // The fortran_vec offset for the Magenta, Yellow, and blacK channels
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1233 const octave_idx_type M_offset = nCols * nRows;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1234 const octave_idx_type Y_offset = nCols * nRows * 2;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1235 const octave_idx_type K_offset = nCols * nRows * 3;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1236 for (octave_idx_type frame = 0; frame < nFrames; frame++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1237 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	1238 OCTAVE_QUIT;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1239 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1240 type,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1241 Magick::DirectClass);
10979 7f49dc864f32 __magick_read__.cc: style fixes John W. Eaton <jwe@octave.org> parents: 10978 diff changeset	1242
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1243 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1244 octave_idx_type GM_idx = 0;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1245 for (octave_idx_type col = 0; col < nCols; col++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1246 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1247 for (octave_idx_type row = 0; row < nRows; row++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1248 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1249 Magick::Color c (double (*img_fvec) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1250 double (img_fvec[M_offset]) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1251 double (img_fvec[Y_offset]) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1252 double (img_fvec[K_offset]) / divisor);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1253 pix[GM_idx] = c;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1254 img_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1255 GM_idx += nCols;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1256 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1257 GM_idx -= nCols * nRows - 1;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1258 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1259 // Save changes to underlying image.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1260 m_img.syncPixels ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1261 imvec.push_back (m_img);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1262 img_fvec += K_offset;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1263 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1264 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1265 }
10979 7f49dc864f32 __magick_read__.cc: style fixes John W. Eaton <jwe@octave.org> parents: 10978 diff changeset	1266
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1267 case Magick::ColorSeparationMatteType:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1268 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1269 // The fortran_vec offset for the Magenta, Yellow, and blacK channels
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1270 const octave_idx_type M_offset = nCols * nRows;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1271 const octave_idx_type Y_offset = nCols * nRows * 2;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1272 const octave_idx_type K_offset = nCols * nRows * 3;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1273 for (octave_idx_type frame = 0; frame < nFrames; frame++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1274 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	1275 OCTAVE_QUIT;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1276 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1277 type,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1278 Magick::DirectClass);
10979 7f49dc864f32 __magick_read__.cc: style fixes John W. Eaton <jwe@octave.org> parents: 10978 diff changeset	1279
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1280 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1281 Magick::IndexPacket *ind = m_img.getIndexes ();
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1282 octave_idx_type GM_idx = 0;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1283 for (octave_idx_type col = 0; col < nCols; col++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1284 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1285 for (octave_idx_type row = 0; row < nRows; row++)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1286 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1287 Magick::Color c (double (*img_fvec) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1288 double (img_fvec[M_offset]) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1289 double (img_fvec[Y_offset]) / divisor,
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1290 double (img_fvec[K_offset]) / divisor);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1291 pix[GM_idx] = c;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1292 ind[GM_idx] = MaxRGB - (double (*a_fvec) / divisor);
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1293 img_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1294 a_fvec++;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1295 GM_idx += nCols;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1296 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1297 GM_idx -= nCols * nRows - 1;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1298 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1299 // Save changes to underlying image.
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1300 m_img.syncPixels ();
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1301 imvec.push_back (m_img);
18542 30aa4e85f8d5 Fix writing and reading of multipage images. Carnë Draug <carandraug@octave.org> parents: 18149 diff changeset	1302 img_fvec += K_offset;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1303 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1304 break;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1305 }
11034 6589aaf769f6 Correctly handle logical and integer bit depths John Swensen <jpswensen@gmail.com> parents: 10988 diff changeset	1306
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1307 default:
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1308 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1309 error ("__magick_write__: unrecognized Magick::ImageType");
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1310 return;
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1311 }
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1312 }
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1313 return;
8054 272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1314 }
272eaebbb6ba Various features added to imwrite scofield@scofield parents: 8053 diff changeset	1315
17855 bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1316 // Meant to be shared with both imfinfo and imwrite.
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1317 static std::map<octave_idx_type, std::string>
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1318 init_disposal_methods ()
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1319 {
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1320 // GIF Specifications:
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1321 //
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1322 // Disposal Method - Indicates the way in which the graphic is to
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1323 // be treated after being displayed.
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1324 //
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1325 // 0 - No disposal specified. The decoder is
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1326 // not required to take any action.
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1327 // 1 - Do not dispose. The graphic is to be left
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1328 // in place.
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1329 // 2 - Restore to background color. The area used by the
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1330 // graphic must be restored to the background color.
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1331 // 3 - Restore to previous. The decoder is required to
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1332 // restore the area overwritten by the graphic with
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1333 // what was there prior to rendering the graphic.
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1334 // 4-7 - To be defined.
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1335 static std::map<octave_idx_type, std::string> methods;
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1336 if (methods.empty ())
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1337 {
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1338 methods[0] = "doNotSpecify";
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1339 methods[1] = "leaveInPlace";
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1340 methods[2] = "restoreBG";
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1341 methods[3] = "restorePrevious";
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1342 }
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1343 return methods;
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1344 }
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1345 static std::map<std::string, octave_idx_type>
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1346 init_reverse_disposal_methods ()
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1347 {
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1348 static std::map<std::string, octave_idx_type> methods;
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1349 if (methods.empty ())
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1350 {
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1351 methods["donotspecify"] = 0;
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1352 methods["leaveinplace"] = 1;
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1353 methods["restorebg"] = 2;
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1354 methods["restoreprevious"] = 3;
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1355 }
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1356 return methods;
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1357 }
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1358
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1359 void static
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1360 write_file (const std::string& filename,
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1361 const std::string& ext,
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1362 std::vector<Magick::Image>& imvec)
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1363 {
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1364 try
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1365 {
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1366 Magick::writeImages (imvec.begin (), imvec.end (), ext + ":" + filename);
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1367 }
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1368 catch (Magick::Warning& w)
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1369 {
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1370 warning ("Magick++ warning: %s", w.what ());
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1371 }
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1372 catch (Magick::ErrorCoder& e)
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1373 {
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1374 warning ("Magick++ coder error: %s", e.what ());
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1375 }
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1376 catch (Magick::Exception& e)
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1377 {
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1378 error ("Magick++ exception: %s", e.what ());
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1379 error_state = 1;
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1380 }
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1381 }
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1382
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1383 #endif
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1384
9436 5302df15ad76 __magick_read__.cc: undo unintended change John W. Eaton <jwe@octave.org> parents: 9434 diff changeset	1385 DEFUN_DLD (__magick_write__, args, ,
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1386 "-- texinfo --\n\
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1387 @deftypefn {Loadable Function} {} __magick_write__ (@var{fname}, @var{fmt}, @var{img}, @var{map}, @var{options})\n\
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1388 Write image with GraphicsMagick or ImageMagick.\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1389 \n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1390 This is a private internal function not intended for direct use. Instead\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1391 use @code{imwrite}.\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1392 \n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1393 @seealso{imfinfo, imformats, imread, imwrite}\n\
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1394 @end deftypefn")
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1395 {
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1396 octave_value_list retval;
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1397
16983 4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	1398 #ifndef HAVE_MAGICK
4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	1399 gripe_disabled_feature ("imwrite", "Image IO");
4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	1400 #else
4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	1401
10947 dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	1402 maybe_initialize_magick ();
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	1403
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1404 if (args.length () != 5 \|\| ! args(0).is_string () \|\| ! args(1).is_string ())
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1405 {
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1406 print_usage ();
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1407 return retval;
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1408 }
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1409 const std::string filename = args(0).string_value ();
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1410 const std::string ext = args(1).string_value ();
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1411
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1412 const octave_scalar_map options = args(4).scalar_map_value ();
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1413 if (error_state)
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1414 {
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1415 error ("__magick_write__: OPTIONS must be a struct");
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1416 return retval;
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1417 }
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1418
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1419 const octave_value img = args(2);
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1420 const Matrix cmap = args(3).matrix_value ();
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1421 if (error_state)
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1422 {
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1423 error ("__magick_write__: invalid IMG or MAP");
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1424 return retval;
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1425 }
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1426
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1427 std::vector<Magick::Image> imvec;
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1428
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1429 if (cmap.is_empty ())
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1430 {
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1431 const octave_value alpha = options.getfield ("alpha");
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1432 if (img.is_bool_type ())
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1433 encode_bool_image (imvec, img.bool_array_value ());
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1434 else if (img.is_uint8_type ())
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1435 encode_uint_image<uint8NDArray> (imvec, img.uint8_array_value (),
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1436 alpha.uint8_array_value ());
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1437 else if (img.is_uint16_type ())
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1438 encode_uint_image<uint16NDArray> (imvec, img.uint16_array_value (),
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1439 alpha.uint16_array_value ());
17228 2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1440 else if (img.is_uint32_type ())
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1441 encode_uint_image<uint32NDArray> (imvec, img.uint32_array_value (),
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1442 alpha.uint32_array_value ());
17228 2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1443 else if (img.is_float_type ())
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1444 {
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1445 // For image formats that support floating point values, we write
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1446 // the actual values. For those who don't, we only use the values
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1447 // on the range [0 1] and save integer values.
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1448 // But here, even for formats that would support floating point
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1449 // values, GM seems unable to do that so we at least make them uint32.
2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1450 uint32NDArray clip_img;
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1451 uint32NDArray clip_alpha;
17228 2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1452 if (img.is_single_type ())
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1453 {
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1454 clip_img = img_float2uint<FloatNDArray>
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1455 (img.float_array_value ());
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1456 clip_alpha = img_float2uint<FloatNDArray>
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1457 (alpha.float_array_value ());
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1458 }
17228 2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1459 else
17332 eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1460 {
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1461 clip_img = img_float2uint<NDArray> (img.array_value ());
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1462 clip_alpha = img_float2uint<NDArray> (alpha.array_value ());
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1463 }
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986). Carnë Draug <carandraug@octave.org> parents: 17240 diff changeset	1464 encode_uint_image<uint32NDArray> (imvec, clip_img, clip_alpha);
17228 2f1729cae08f Initial support for writing of floating point and uint32 images. Carnë Draug <carandraug@octave.org> parents: 17226 diff changeset	1465 }
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1466 else
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1467 {
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1468 error ("__magick_write__: image type not supported");
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1469 return retval;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1470 }
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1471 }
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1472 else
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1473 {
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1474 // We should not get floating point indexed images here because we
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1475 // converted them in __imwrite__.m. We should probably do it here
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1476 // but it would look much messier.
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1477 if (img.is_uint8_type ())
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1478 encode_indexed_images<uint8NDArray> (imvec, img.uint8_array_value (),
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1479 cmap);
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1480 else if (img.is_uint16_type ())
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1481 encode_indexed_images<uint16NDArray> (imvec, img.uint16_array_value (),
96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1482 cmap);
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1483 else
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1484 {
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1485 error ("__magick_write__: indexed image must be uint8, uint16 or float.");
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1486 return retval;
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1487 }
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1488 }
17855 bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1489 static std::map<std::string, octave_idx_type> disposal_methods
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1490 = init_reverse_disposal_methods ();
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1491
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1492 const octave_idx_type nFrames = imvec.size ();
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1493
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1494 const octave_idx_type quality = options.getfield ("quality").int_value ();
17855 bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1495 const ColumnVector delaytime = options.getfield ("delaytime").column_vector_value ();
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1496 const Array<std::string> disposalmethod = options.getfield ("disposalmethod").cellstr_value ();
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1497 for (octave_idx_type i = 0; i < nFrames; i++)
17855 bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1498 {
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1499 imvec[i].quality (quality);
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1500 imvec[i].animationDelay (delaytime(i));
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1501 imvec[i].gifDisposeMethod (disposal_methods[disposalmethod(i)]);
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1502 }
17854 adb0ba0d0c13 imwrite: implement DelayTime option. Carnë Draug <carandraug@octave.org> parents: 17853 diff changeset	1503
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1504 // If writemode is set to append, read the image and append to it. Even
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1505 // if set to append, make sure that something was read at all.
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1506 const std::string writemode = options.getfield ("writemode").string_value ();
16989 7a69ab84b8c9 __magick_write__: confirm file exists before reading to append. Carnë Draug <carandraug@octave.org> parents: 16988 diff changeset	1507 if (writemode == "append" && file_stat (filename).exists ())
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1508 {
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1509 std::vector<Magick::Image> ini_imvec;
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1510 read_file (filename, ini_imvec);
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1511 if (error_state)
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1512 return retval;
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1513 if (ini_imvec.size () > 0)
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1514 {
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1515 ini_imvec.insert (ini_imvec.end (), imvec.begin (), imvec.end ());
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1516 ini_imvec.swap (imvec);
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1517 }
16988 54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1518 }
54b75bed4bc7 imwrite: implement WriteMode option. Carnë Draug <carandraug@octave.org> parents: 16984 diff changeset	1519
17861 870f3e12e163 maint: Use phrase "FIXME:" for problem areas in code. Rik <rik@octave.org> parents: 17855 diff changeset	1520 // FIXME: LoopCount or animationIterations
17855 bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1521 // How it should work:
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1522 //
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1523 // This value is only set for the first image in the sequence. Trying
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1524 // to set this value with the append mode should have no effect, the
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1525 // value used with the first image is the one that counts (that would
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1526 // also be Matlab compatible). Thus, the right way to do this would be
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1527 // to have an else block on the condition above, and set this only
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1528 // when creating a new file. Since Matlab does not interpret a 4D
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1529 // matrix as sequence of images to write, its users need to use a for
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1530 // loop and set LoopCount only on the first iteration (it actually
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1531 // throws warnings otherwise)
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1532 //
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1533 // Why is this not done the right way:
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1534 //
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1535 // When GM saves a single image, it discards the value if there is only
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1536 // a single image and sets it to "no loop". Since our default is an
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1537 // infinite loop, if the user tries to do it the Matlab way (setting
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1538 // LoopCount only on the first image) that value will go nowhere.
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1539 // See https://sourceforge.net/p/graphicsmagick/bugs/248/
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1540 // Because of this, we document to set LoopCount on every iteration
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1541 // (in Matlab will cause a lot of warnings), or pass a 4D matrix with
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1542 // all frames (won't work in Matlab at all).
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1543 // Note that this only needs to be set on the first frame
bfbe5dcc9943 imwrite: implement DisposalMethod option. Carnë Draug <carandraug@octave.org> parents: 17854 diff changeset	1544 imvec[0].animationIterations (options.getfield ("loopcount").uint_value ());
17853 aacb9da13df6 imwrite: implement LoopCount option. Carnë Draug <carandraug@octave.org> parents: 17787 diff changeset	1545
17226 46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1546 write_file (filename, ext, imvec);
46805642048f Implement writing of indexed images. Carnë Draug <carandraug@octave.org> parents: 17149 diff changeset	1547 if (error_state)
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1548 return retval;
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1549
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1550 #endif
16983 4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	1551 return retval;
7974 fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1552 }
fcaddd090f98 imwrite: new function John W. Eaton <jwe@octave.org> parents: 7937 diff changeset	1553
12805 3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	1554 /*
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	1555 ## No test needed for internal helper function.
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	1556 %!assert (1)
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	1557 */
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	1558
17351 80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1559 // Gets the minimum information from images such as its size and format. Much
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1560 // faster than using imfinfo, which slows down a lot since. Note than without
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1561 // this, we need to read the image once for imfinfo to set defaults (which is
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1562 // done in Octave language), and then again for the actual reading.
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1563 DEFUN_DLD (__magick_ping__, args, ,
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1564 "-- texinfo --\n\
17351 80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1565 @deftypefn {Loadable Function} {} __magick_ping__ (@var{fname}, @var{idx})\n\
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1566 Ping image information with GraphicsMagick or ImageMagick.\n\
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1567 \n\
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1568 This is a private internal function not intended for direct use.\n\
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1569 \n\
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1570 @seealso{imfinfo}\n\
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1571 @end deftypefn")
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1572 {
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1573 octave_value retval;
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1574 #ifndef HAVE_MAGICK
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1575 gripe_disabled_feature ("imfinfo", "Image IO");
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1576 #else
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1577 maybe_initialize_magick ();
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1578
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1579 if (args.length () < 1 \|\| ! args(0).is_string ())
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1580 {
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1581 print_usage ();
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1582 return retval;
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1583 }
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1584 const std::string filename = args(0).string_value ();
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1585 int idx;
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1586 if (args.length () > 1)
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1587 idx = args(1).int_value () -1;
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1588 else
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1589 idx = 0;
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1590
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1591 Magick::Image img;
17705 292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1592 img.subImage (idx); // start ping from this image (in case of multi-page)
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1593 img.subRange (1); // ping only one of them
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1594 try
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1595 {
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1596 img.ping (filename);
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1597 }
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1598 catch (Magick::Warning& w)
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1599 {
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1600 warning ("Magick++ warning: %s", w.what ());
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1601 }
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1602 catch (Magick::Exception& e)
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1603 {
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1604 error ("Magick++ exception: %s", e.what ());
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1605 return retval;
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1606 }
292319fb7fcc Catch Magick++ errors and warnings when pinging image (bug #40267) Carnë Draug <carandraug@octave.org> parents: 17561 diff changeset	1607
17351 80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1608 static const char *fields[] = {"rows", "columns", "format", 0};
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1609 octave_scalar_map ping = octave_scalar_map (string_vector (fields));
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1610 ping.setfield ("rows", octave_value (img.rows ()));
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1611 ping.setfield ("columns", octave_value (img.columns ()));
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1612 ping.setfield ("format", octave_value (img.magick ()));
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1613 retval = octave_value (ping);
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1614 #endif
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1615 return retval;
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1616 }
80bf005cdf8e New function __magick_ping__ to speed reading of images. Carnë Draug <carandraug@octave.org> parents: 17350 diff changeset	1617
8165 75014ec4ac84 __magick_read__.cc: only define magick_to_octave_value functions if HAVE_MAGICK is defined John W. Eaton <jwe@octave.org> parents: 8144 diff changeset	1618 #ifdef HAVE_MAGICK
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1619 static octave_value
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1620 magick_to_octave_value (const Magick::CompressionType& magick)
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1621 {
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1622 switch (magick)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1623 {
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1624 case Magick::NoCompression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1625 return octave_value ("none");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1626 case Magick::BZipCompression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1627 return octave_value ("bzip");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1628 case Magick::FaxCompression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1629 return octave_value ("fax3");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1630 case Magick::Group4Compression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1631 return octave_value ("fax4");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1632 case Magick::JPEGCompression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1633 return octave_value ("jpeg");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1634 case Magick::LZWCompression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1635 return octave_value ("lzw");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1636 case Magick::RLECompression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1637 // This is named "rle" for the HDF, but the same thing is named
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1638 // "ccitt" and "PackBits" for binary and non-binary images in TIFF.
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1639 return octave_value ("rle");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1640 case Magick::ZipCompression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1641 return octave_value ("deflate");
17362 6e1a3b8fc312 __magick_finfo__: remove recent Magick compression types (bug #39913) Carnë Draug <carandraug@octave.org> parents: 17359 diff changeset	1642
6e1a3b8fc312 __magick_finfo__: remove recent Magick compression types (bug #39913) Carnë Draug <carandraug@octave.org> parents: 17359 diff changeset	1643 // The following are present only in recent versions of GraphicsMagick.
6e1a3b8fc312 __magick_finfo__: remove recent Magick compression types (bug #39913) Carnë Draug <carandraug@octave.org> parents: 17359 diff changeset	1644 // At the moment the only use of this would be to have imfinfo report
6e1a3b8fc312 __magick_finfo__: remove recent Magick compression types (bug #39913) Carnë Draug <carandraug@octave.org> parents: 17359 diff changeset	1645 // the compression method. In the future, someone could implement
6e1a3b8fc312 __magick_finfo__: remove recent Magick compression types (bug #39913) Carnë Draug <carandraug@octave.org> parents: 17359 diff changeset	1646 // the Compression option for imwrite in which case a macro in
6e1a3b8fc312 __magick_finfo__: remove recent Magick compression types (bug #39913) Carnë Draug <carandraug@octave.org> parents: 17359 diff changeset	1647 // configure.ac will have to check for their presence of this.
6e1a3b8fc312 __magick_finfo__: remove recent Magick compression types (bug #39913) Carnë Draug <carandraug@octave.org> parents: 17359 diff changeset	1648 // See bug #39913
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1649 // case Magick::LZMACompression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1650 // return octave_value ("lzma");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1651 // case Magick::JPEG2000Compression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1652 // return octave_value ("jpeg2000");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1653 // case Magick::JBIG1Compression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1654 // return octave_value ("jbig1");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1655 // case Magick::JBIG2Compression:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1656 // return octave_value ("jbig2");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1657 default:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1658 return octave_value ("undefined");
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1659 }
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1660 }
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1661
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1662 static octave_value
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1663 magick_to_octave_value (const Magick::EndianType& magick)
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1664 {
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1665 switch (magick)
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1666 {
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1667 case Magick::LSBEndian:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1668 return octave_value ("little-endian");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1669 case Magick::MSBEndian:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1670 return octave_value ("big-endian");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1671 default:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1672 return octave_value ("undefined");
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1673 }
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1674 }
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1675
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1676 static octave_value
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1677 magick_to_octave_value (const Magick::OrientationType& magick)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1678 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1679 switch (magick)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1680 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1681 // Values come from the TIFF6 spec
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1682 case Magick::TopLeftOrientation:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1683 return octave_value (1);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1684 case Magick::TopRightOrientation:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1685 return octave_value (2);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1686 case Magick::BottomRightOrientation:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1687 return octave_value (3);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1688 case Magick::BottomLeftOrientation:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1689 return octave_value (4);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1690 case Magick::LeftTopOrientation:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1691 return octave_value (5);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1692 case Magick::RightTopOrientation:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1693 return octave_value (6);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1694 case Magick::RightBottomOrientation:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1695 return octave_value (7);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1696 case Magick::LeftBottomOrientation:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1697 return octave_value (8);
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1698 default:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1699 return octave_value (1);
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1700 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1701 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1702
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1703 static octave_value
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1704 magick_to_octave_value (const Magick::ResolutionType& magick)
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1705 {
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1706 switch (magick)
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1707 {
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1708 case Magick::PixelsPerInchResolution:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1709 return octave_value ("Inch");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1710 case Magick::PixelsPerCentimeterResolution:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1711 return octave_value ("Centimeter");
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1712 default:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1713 return octave_value ("undefined");
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1714 }
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1715 }
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1716
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1717 static bool
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1718 is_valid_exif (const std::string& val)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1719 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1720 // Sometimes GM will return the string "unknown" instead of empty
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1721 // for an empty value.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1722 return (! val.empty () && val != "unknown");
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1723 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1724
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1725 static void
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1726 fill_exif (octave_scalar_map& map, Magick::Image& img,
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1727 const std::string& key)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1728 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1729 const std::string attr = img.attribute ("EXIF:" + key);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1730 if (is_valid_exif (attr))
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1731 map.setfield (key, octave_value (attr));
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1732 return;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1733 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1734
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1735 static void
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1736 fill_exif_ints (octave_scalar_map& map, Magick::Image& img,
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1737 const std::string& key)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1738 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1739 const std::string attr = img.attribute ("EXIF:" + key);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1740 if (is_valid_exif (attr))
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1741 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1742 // string of the type "float,float,float....."
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1743 float number;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1744 ColumnVector values (std::count (attr.begin (), attr.end (), ',') +1);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1745 std::string sub;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1746 std::istringstream sstream (attr);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1747 octave_idx_type n = 0;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1748 while (std::getline (sstream, sub, char (',')))
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1749 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1750 sscanf (sub.c_str (), "%f", &number);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1751 values(n++) = number;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1752 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1753 map.setfield (key, octave_value (values));
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1754 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1755 return;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1756 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1757
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1758 static void
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1759 fill_exif_floats (octave_scalar_map& map, Magick::Image& img,
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1760 const std::string& key)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1761 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1762 const std::string attr = img.attribute ("EXIF:" + key);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1763 if (is_valid_exif (attr))
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1764 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1765 // string of the type "int/int,int/int,int/int....."
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1766 int numerator;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1767 int denominator;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1768 ColumnVector values (std::count (attr.begin (), attr.end (), ',') +1);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1769 std::string sub;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1770 std::istringstream sstream (attr);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1771 octave_idx_type n = 0;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1772 while (std::getline (sstream, sub, ','))
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1773 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1774 sscanf (sub.c_str (), "%i/%i", &numerator, &denominator);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1775 values(n++) = double (numerator) / double (denominator);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1776 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1777 map.setfield (key, octave_value (values));
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1778 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1779 return;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1780 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1781
8165 75014ec4ac84 __magick_read__.cc: only define magick_to_octave_value functions if HAVE_MAGICK is defined John W. Eaton <jwe@octave.org> parents: 8144 diff changeset	1782 #endif
75014ec4ac84 __magick_read__.cc: only define magick_to_octave_value functions if HAVE_MAGICK is defined John W. Eaton <jwe@octave.org> parents: 8144 diff changeset	1783
9436 5302df15ad76 __magick_read__.cc: undo unintended change John W. Eaton <jwe@octave.org> parents: 9434 diff changeset	1784 DEFUN_DLD (__magick_finfo__, args, ,
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1785 "-- texinfo --\n\
14854 5ae9f0f77635 maint: Use Octave coding conventions for coddling parenthis is DLD-FUNCTIONS directory Rik <octave@nomad.inbox5.com> parents: 14846 diff changeset	1786 @deftypefn {Loadable Function} {} __magick_finfo__ (@var{fname})\n\
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1787 Read image information with GraphicsMagick or ImageMagick.\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1788 \n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1789 This is a private internal function not intended for direct use. Instead\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1790 use @code{imfinfo}.\n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1791 \n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	1792 @seealso{imfinfo, imformats, imread, imwrite}\n\
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1793 @end deftypefn")
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1794 {
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	1795 octave_value retval;
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1796
16983 4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	1797 #ifndef HAVE_MAGICK
4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	1798 gripe_disabled_feature ("imfinfo", "Image IO");
4660d047955e Make use of gripe_disabled_feature() for image IO functions. Carnë Draug <carandraug+dev@gmail.com> parents: 16944 diff changeset	1799 #else
10947 dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	1800 maybe_initialize_magick ();
dc74ce93cfc4 initialize GraphicsMagick in all __magick_* functions Jaroslav Hajek <highegg@gmail.com> parents: 10840 diff changeset	1801
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1802 if (args.length () < 1 \|\| ! args(0).is_string ())
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1803 {
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1804 print_usage ();
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	1805 return retval;
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1806 }
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	1807 const std::string filename = args(0).string_value ();
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1808
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1809 std::vector<Magick::Image> imvec;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1810 read_file (filename, imvec);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1811 if (error_state)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1812 return retval;
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1813 const octave_idx_type nFrames = imvec.size ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1814 const std::string format = imvec[0].magick ();
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1815
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1816 // Here's how this function works. We need to return a struct array, one
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1817 // struct for each image in the file (remember, there are image
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1818 // that allow for multiple images in the same file). Now, Matlab seems
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1819 // to have format specific code so the fields on the struct are different
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1820 // for each format. It only has a small subset that is common to all
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1821 // of them, the others are undocumented. Because we try to abstract from
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1822 // the formats we always return the same list of fields (note that with
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1823 // GM we support more than 88 formats. That's way more than Matlab, and
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1824 // I don't want to write specific code for each of them).
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1825 //
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1826 // So what we do is we create an octave_scalar_map, fill it with the
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1827 // information for that image, and then insert it into an octave_map.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1828 // Because in the same file, different images may have values for
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1829 // different fields, we can't create a field only if there's a value.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1830 // Bad things happen if we merge octave_scalar_maps with different
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1831 // fields from the others (suppose for example a TIFF file with 4 images,
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1832 // where only the third image has a colormap.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1833
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1834 static const char *fields[] =
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1835 {
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1836 // These are fields that must always appear for Matlab.
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1837 "Filename",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1838 "FileModDate",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1839 "FileSize",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1840 "Format",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1841 "FormatVersion",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1842 "Width",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1843 "Height",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1844 "BitDepth",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1845 "ColorType",
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	1846
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1847 // These are format specific or not existent in Matlab. The most
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1848 // annoying thing is that Matlab may have different names for the
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1849 // same thing in different formats.
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1850 "DelayTime",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1851 "DisposalMethod",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1852 "LoopCount",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1853 "ByteOrder",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1854 "Gamma",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1855 "Chromaticities",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1856 "Comment",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1857 "Quality",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1858 "Compression", // same as CompressionType
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1859 "Colormap", // same as ColorTable (in PNG)
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1860 "Orientation",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1861 "ResolutionUnit",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1862 "XResolution",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1863 "YResolution",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1864 "Software", // sometimes is an Exif tag
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1865 "Make", // actually an Exif tag
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1866 "Model", // actually an Exif tag
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1867 "DateTime", // actually an Exif tag
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1868 "ImageDescription", // actually an Exif tag
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1869 "Artist", // actually an Exif tag
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1870 "Copyright", // actually an Exif tag
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1871 "DigitalCamera",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1872 "GPSInfo",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1873 // Notes for the future: GM allows to get many attributes, and even has
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1874 // attribute() to obtain arbitrary ones, that may exist in only some
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1875 // cases. The following is a list of some methods and into what possible
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1876 // Matlab compatible values they may be converted.
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1877 //
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1878 // colorSpace() -> PhotometricInterpretation
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1879 // backgroundColor() -> BackgroundColor
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1880 // interlaceType() -> Interlaced, InterlaceType, and PlanarConfiguration
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1881 // label() -> Title
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1882 0
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1883 };
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	1884
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1885 // The one we will return at the end
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1886 octave_map info (dim_vector (nFrames, 1), string_vector (fields));
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11585 diff changeset	1887
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1888 // Some of the fields in the struct are about file information and will be
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1889 // the same for all images in the file. So we create a template, fill in
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1890 // those values, and make a copy of the template for each image.
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1891 octave_scalar_map template_info = (string_vector (fields));
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1892
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1893 template_info.setfield ("Format", octave_value (format));
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1894 // We can't actually get FormatVersion but even Matlab sometimes can't.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1895 template_info.setfield ("FormatVersion", octave_value (""));
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	1896
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1897 const file_stat fs (filename);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1898 if (fs)
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1899 {
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1900 const octave_localtime mtime (fs.mtime ());
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1901 const std::string filetime = mtime.strftime ("%e-%b-%Y %H:%M:%S");
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1902 template_info.setfield ("Filename", octave_value (filename));
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1903 template_info.setfield ("FileModDate", octave_value (filetime));
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1904 template_info.setfield ("FileSize", octave_value (fs.size ()));
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1905 }
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1906 else
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1907 {
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1908 error ("imfinfo: error reading '%s': %s",
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1909 filename.c_str (), fs.error ().c_str ());
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	1910 return retval;
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	1911 }
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1912
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1913 for (octave_idx_type frame = 0; frame < nFrames; frame++)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1914 {
18553 548643c76a88 Use OCTAVE_QUIT between each image frame to allow Control-C during Image IO. Carnë Draug <carandraug@octave.org> parents: 18544 diff changeset	1915 OCTAVE_QUIT;
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1916 octave_scalar_map info_frame (template_info);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1917 const Magick::Image img = imvec[frame];
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1918
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1919 info_frame.setfield ("Width", octave_value (img.columns ()));
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1920 info_frame.setfield ("Height", octave_value (img.rows ()));
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1921 info_frame.setfield ("BitDepth",
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1922 octave_value (get_depth (const_cast<Magick::Image&> (img))));
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1923
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1924 // Stuff related to colormap, image class and type
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1925 // Because GM is too smart for us... Read the comments in is_indexed()
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1926 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1927 std::string color_type;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1928 Matrix cmap;
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1929 if (is_indexed (img))
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1930 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1931 color_type = "indexed";
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1932 cmap =
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1933 read_maps (const_cast<Magick::Image&> (img))(0).matrix_value ();
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1934 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1935 else
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1936 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1937 switch (img.type ())
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1938 {
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1939 case Magick::BilevelType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1940 case Magick::GrayscaleType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1941 case Magick::GrayscaleMatteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1942 color_type = "grayscale";
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1943 break;
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1944
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1945 case Magick::TrueColorType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1946 case Magick::TrueColorMatteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1947 color_type = "truecolor";
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1948 break;
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1949
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1950 case Magick::PaletteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1951 case Magick::PaletteMatteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1952 // we should never get here or is_indexed needs to be fixed
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1953 color_type = "indexed";
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1954 break;
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1955
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1956 case Magick::ColorSeparationType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1957 case Magick::ColorSeparationMatteType:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1958 color_type = "CMYK";
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1959 break;
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1960
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1961 default:
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1962 color_type = "undefined";
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1963 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1964 }
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1965 info_frame.setfield ("ColorType", octave_value (color_type));
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1966 info_frame.setfield ("Colormap", octave_value (cmap));
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1967 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1968
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1969 {
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1970 // Not all images have chroma values. In such cases, they'll
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	1971 // be all zeros. So rather than send a matrix of zeros, we will
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1972 // check for that, and send an empty vector instead.
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1973 RowVector chromaticities (8);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1974 double* chroma_fvec = chromaticities.fortran_vec ();
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1975 img.chromaWhitePoint (&chroma_fvec[0], &chroma_fvec[1]);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1976 img.chromaRedPrimary (&chroma_fvec[2], &chroma_fvec[3]);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1977 img.chromaGreenPrimary (&chroma_fvec[4], &chroma_fvec[5]);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1978 img.chromaBluePrimary (&chroma_fvec[6], &chroma_fvec[7]);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1979 if (chromaticities.nnz () == 0)
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1980 chromaticities = RowVector (0);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1981 info_frame.setfield ("Chromaticities", octave_value (chromaticities));
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1982 }
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1983
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1984 info_frame.setfield ("Gamma", octave_value (img.gamma ()));
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1985 info_frame.setfield ("XResolution", octave_value (img.xResolution ()));
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1986 info_frame.setfield ("YResolution", octave_value (img.yResolution ()));
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1987 info_frame.setfield ("DelayTime", octave_value (img.animationDelay ()));
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1988 info_frame.setfield ("LoopCount",
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1989 octave_value (img.animationIterations ()));
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1990 info_frame.setfield ("Quality", octave_value (img.quality ()));
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1991 info_frame.setfield ("Comment", octave_value (img.comment ()));
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1992
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1993 info_frame.setfield ("Compression",
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1994 magick_to_octave_value (img.compressType ()));
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1995 info_frame.setfield ("Orientation",
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1996 magick_to_octave_value (img.orientation ()));
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1997 info_frame.setfield ("ResolutionUnit",
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1998 magick_to_octave_value (img.resolutionUnits ()));
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	1999 info_frame.setfield ("ByteOrder",
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2000 magick_to_octave_value (img.endian ()));
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	2001
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2002 // It is not possible to know if there's an Exif field so we just
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2003 // check for the Exif Version value. If it does exists, then we
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2004 // bother about looking for specific fields.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2005 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2006 Magick::Image& cimg = const_cast<Magick::Image&> (img);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2007
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2008 // These will be in Exif tags but must appear as fields in the
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2009 // base struct array, not as another struct in one of its fields.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2010 // This is likely because they belong to the Baseline TIFF specs
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2011 // and may appear out of the Exif tag. So first we check if it
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2012 // exists outside the Exif tag.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2013 // See Section 4.6.4, table 4, page 28 of Exif specs version 2.3
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2014 // (CIPA DC- 008-Translation- 2010)
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2015 static const char *base_exif_str_fields[] =
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2016 {
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2017 "DateTime",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2018 "ImageDescription",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2019 "Make",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2020 "Model",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2021 "Software",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2022 "Artist",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2023 "Copyright",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2024 0,
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2025 };
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2026 static const string_vector base_exif_str (base_exif_str_fields);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2027 static const octave_idx_type n_base_exif_str = base_exif_str.numel ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2028 for (octave_idx_type field = 0; field < n_base_exif_str; field++)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2029 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2030 info_frame.setfield (base_exif_str[field],
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2031 octave_value (cimg.attribute (base_exif_str[field])));
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2032 fill_exif (info_frame, cimg, base_exif_str[field]);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2033 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2034
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2035 octave_scalar_map camera;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2036 octave_scalar_map gps;
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2037 if (! cimg.attribute ("EXIF:ExifVersion").empty ())
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2038 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2039 // See Section 4.6.5, table 7 and 8, over pages page 42 to 43
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2040 // of Exif specs version 2.3 (CIPA DC- 008-Translation- 2010)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2041
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2042 // Listed on the Exif specs as being of type ASCII.
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2043 static const char *exif_str_fields[] =
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2044 {
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2045 "RelatedSoundFile",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2046 "DateTimeOriginal",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2047 "DateTimeDigitized",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2048 "SubSecTime",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2049 "DateTimeOriginal",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2050 "SubSecTimeOriginal",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2051 "SubSecTimeDigitized",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2052 "ImageUniqueID",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2053 "CameraOwnerName",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2054 "BodySerialNumber",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2055 "LensMake",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2056 "LensModel",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2057 "LensSerialNumber",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2058 "SpectralSensitivity",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2059 // These last two are of type undefined but most likely will
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2060 // be strings. Even if they're not GM returns a string anyway.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2061 "UserComment",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2062 "MakerComment",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2063 0
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2064 };
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2065 static const string_vector exif_str (exif_str_fields);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2066 static const octave_idx_type n_exif_str = exif_str.numel ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2067 for (octave_idx_type field = 0; field < n_exif_str; field++)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2068 fill_exif (camera, cimg, exif_str[field]);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2069
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2070 // Listed on the Exif specs as being of type SHORT or LONG.
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2071 static const char *exif_int_fields[] =
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2072 {
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2073 "ColorSpace",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2074 "ExifImageWidth", // PixelXDimension (CPixelXDimension in Matlab)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2075 "ExifImageHeight", // PixelYDimension (CPixelYDimension in Matlab)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2076 "PhotographicSensitivity",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2077 "StandardOutputSensitivity",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2078 "RecommendedExposureIndex",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2079 "ISOSpeed",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2080 "ISOSpeedLatitudeyyy",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2081 "ISOSpeedLatitudezzz",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2082 "FocalPlaneResolutionUnit",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2083 "FocalLengthIn35mmFilm",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2084 // Listed as SHORT or LONG but with more than 1 count.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2085 "SubjectArea",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2086 "SubjectLocation",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2087 // While the following are an integer, their value have a meaning
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2088 // that must be represented as a string for Matlab compatibility.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2089 // For example, a 3 on ExposureProgram, would return
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2090 // "Aperture priority" as defined on the Exif specs.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2091 "ExposureProgram",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2092 "SensitivityType",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2093 "MeteringMode",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2094 "LightSource",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2095 "Flash",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2096 "SensingMethod",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2097 "FileSource",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2098 "CustomRendered",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2099 "ExposureMode",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2100 "WhiteBalance",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2101 "SceneCaptureType",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2102 "GainControl",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2103 "Contrast",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2104 "Saturation",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2105 "Sharpness",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2106 "SubjectDistanceRange",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2107 0
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2108 };
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2109 static const string_vector exif_int (exif_int_fields);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2110 static const octave_idx_type n_exif_int = exif_int.numel ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2111 for (octave_idx_type field = 0; field < n_exif_int; field++)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2112 fill_exif_ints (camera, cimg, exif_int[field]);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2113
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2114 // Listed as RATIONAL or SRATIONAL
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2115 static const char *exif_float_fields[] =
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2116 {
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2117 "Gamma",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2118 "CompressedBitsPerPixel",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2119 "ExposureTime",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2120 "FNumber",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2121 "ShutterSpeedValue", // SRATIONAL
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2122 "ApertureValue",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2123 "BrightnessValue", // SRATIONAL
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2124 "ExposureBiasValue", // SRATIONAL
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2125 "MaxApertureValue",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2126 "SubjectDistance",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2127 "FocalLength",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2128 "FlashEnergy",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2129 "FocalPlaneXResolution",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2130 "FocalPlaneYResolution",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2131 "ExposureIndex",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2132 "DigitalZoomRatio",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2133 // Listed as RATIONAL or SRATIONAL with more than 1 count.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2134 "LensSpecification",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2135 0
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2136 };
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2137 static const string_vector exif_float (exif_float_fields);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2138 static const octave_idx_type n_exif_float = exif_float.numel ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2139 for (octave_idx_type field = 0; field < n_exif_float; field++)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2140 fill_exif_floats (camera, cimg, exif_float[field]);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2141
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2142 // Inside a Exif field, it is possible that there is also a
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2143 // GPS field. This is not the same as ExifVersion but seems
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2144 // to be how we have to check for it.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2145 if (cimg.attribute ("EXIF:GPSInfo") != "unknown")
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2146 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2147 // The story here is the same as with Exif.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2148 // See Section 4.6.6, table 15 on page 68 of Exif specs
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2149 // version 2.3 (CIPA DC- 008-Translation- 2010)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2150
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2151 static const char *gps_str_fields[] =
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2152 {
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2153 "GPSLatitudeRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2154 "GPSLongitudeRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2155 "GPSAltitudeRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2156 "GPSSatellites",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2157 "GPSStatus",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2158 "GPSMeasureMode",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2159 "GPSSpeedRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2160 "GPSTrackRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2161 "GPSImgDirectionRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2162 "GPSMapDatum",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2163 "GPSDestLatitudeRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2164 "GPSDestLongitudeRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2165 "GPSDestBearingRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2166 "GPSDestDistanceRef",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2167 "GPSDateStamp",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2168 0
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2169 };
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2170 static const string_vector gps_str (gps_str_fields);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2171 static const octave_idx_type n_gps_str = gps_str.numel ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2172 for (octave_idx_type field = 0; field < n_gps_str; field++)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2173 fill_exif (gps, cimg, gps_str[field]);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2174
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2175 static const char *gps_int_fields[] =
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2176 {
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2177 "GPSDifferential",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2178 0
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2179 };
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2180 static const string_vector gps_int (gps_int_fields);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2181 static const octave_idx_type n_gps_int = gps_int.numel ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2182 for (octave_idx_type field = 0; field < n_gps_int; field++)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2183 fill_exif_ints (gps, cimg, gps_int[field]);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2184
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2185 static const char *gps_float_fields[] =
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2186 {
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2187 "GPSAltitude",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2188 "GPSDOP",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2189 "GPSSpeed",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2190 "GPSTrack",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2191 "GPSImgDirection",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2192 "GPSDestBearing",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2193 "GPSDestDistance",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2194 "GPSHPositioningError",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2195 // Listed as RATIONAL or SRATIONAL with more than 1 count.
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2196 "GPSLatitude",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2197 "GPSLongitude",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2198 "GPSTimeStamp",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2199 "GPSDestLatitude",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2200 "GPSDestLongitude",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2201 0
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2202 };
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2203 static const string_vector gps_float (gps_float_fields);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2204 static const octave_idx_type n_gps_float = gps_float.numel ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2205 for (octave_idx_type field = 0; field < n_gps_float; field++)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2206 fill_exif_floats (gps, cimg, gps_float[field]);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2207
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2208 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2209 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2210 info_frame.setfield ("DigitalCamera", octave_value (camera));
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2211 info_frame.setfield ("GPSInfo", octave_value (gps));
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2212 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2213
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	2214 info.fast_elem_insert (frame, info_frame);
ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	2215 }
17359 cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2216
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2217 if (format == "GIF")
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2218 {
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2219 static std::map<octave_idx_type, std::string> disposal_methods
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2220 = init_disposal_methods ();
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2221 string_vector methods (nFrames);
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2222 for (octave_idx_type frame = 0; frame < nFrames; frame++)
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2223 methods[frame] = disposal_methods[imvec[frame].gifDisposeMethod ()];
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2224 info.setfield ("DisposalMethod", Cell (methods));
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2225 }
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2226 else
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2227 info.setfield ("DisposalMethod",
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2228 Cell (dim_vector (nFrames, 1), octave_value ("")));
cf5d41cc3695 Expand imfinfo to read Exif tags and GPS information. Carnë Draug <carandraug@octave.org> parents: 17351 diff changeset	2229
17350 ba79ba4e83ab Rewrite of imfinfo. Carnë Draug <carandraug@octave.org> parents: 17335 diff changeset	2230 retval = octave_value (info);
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	2231 #endif
10333 0c42b6b7da24 imfinfo: support image files with multiple frames Søren Hauberg <soren@hauberg.org> parents: 10298 diff changeset	2232 return retval;
8144 01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	2233 }
01fac748b680 Add the 'imfinfo' function for reading image file information. sh@sh-laptop parents: 8090 diff changeset	2234
12805 3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	2235 /*
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	2236 ## No test needed for internal helper function.
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	2237 %!assert (1)
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	2238 */
3641167e5b75 codesprint: .cc helper functions do not need tests Rik <octave@nomad.inbox5.com>* parents: 11590 diff changeset	2239
16901 861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2240 DEFUN_DLD (__magick_formats__, args, ,
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	2241 "-- texinfo --\n\
16901 861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2242 @deftypefn {Loadable Function} {} __magick_imformats__ (@var{formats})\n\
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2243 Fill formats info with GraphicsMagick CoderInfo.\n\
16984 997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	2244 \n\
997efb8d0b19 imread: implement options Index, Frames, and Info. Carnë Draug <carandraug@octave.org> parents: 16983 diff changeset	2245 @seealso{imfinfo, imformats, imread, imwrite}\n\
16901 861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2246 @end deftypefn")
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2247 {
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2248 octave_value retval;
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2249 #ifndef HAVE_MAGICK
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2250 gripe_disabled_feature ("imformats", "Image IO");
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2251 #else
17235 96a1c132e3c6 __magick_read__.cc: follow coding guidelines. Carnë Draug <carandraug@octave.org> parents: 17228 diff changeset	2252 if (args.length () != 1 \|\| ! args(0).is_map ())
16901 861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2253 {
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2254 print_usage ();
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2255 return retval;
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2256 }
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2257 octave_map formats = args(0).map_value ();
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2258
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2259 maybe_initialize_magick ();
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2260 for (octave_idx_type idx = 0; idx < formats.numel (); idx++)
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2261 {
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2262 try
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2263 {
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2264 octave_scalar_map fmt = formats.checkelem (idx);
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2265 Magick::CoderInfo coder (fmt.getfield ("coder").string_value ());
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2266
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2267 fmt.setfield ("description", octave_value (coder.description ()));
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2268 fmt.setfield ("multipage", coder.isMultiFrame () ? true : false);
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2269 // default for read and write is a function handle. If we can't
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2270 // read or write them, them set it to an empty value
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2271 if (! coder.isReadable ())
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2272 fmt.setfield ("read", Matrix ());
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2273 if (! coder.isWritable ())
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2274 fmt.setfield ("write", Matrix ());
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2275 formats.fast_elem_insert (idx, fmt);
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2276 }
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2277 catch (Magick::Exception& e)
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2278 {
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2279 // Exception here are missing formats. So we remove the format
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2280 // from the structure and reduce idx.
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2281 formats.delete_elements (idx);
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2282 idx--;
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2283 }
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2284 }
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2285 retval = formats;
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2286 #endif
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2287 return retval;
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2288 }
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2289
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2290 /*
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2291 ## No test needed for internal helper function.
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2292 %!assert (1)
861516dcad19 New function imformats. Carnë Draug <carandraug@octave.org> parents: 16871 diff changeset	2293 */

Mercurial > octave-dspies

annotate libinterp/dldfcn/__magick_read__.cc @ 18957:87cba451fd5e stable