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annotate libinterp/corefcn/gl2ps-renderer.h @ 21198:1adcdc518d9e

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provide wrapper for glFinish in opengl_renderer class * gl-render.h, gl-render.cc (opengl_renderer::finish): New function. * gl2ps-renderer.h, gl2ps-renderer.cc, __osmesa_print__.cc: Use it instead of calling glFinish directly.
author John W. Eaton <jwe@octave.org>
date Thu, 04 Feb 2016 18:12:00 -0500
parents 9a5bb6996b16
children
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1 /*
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2
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4197fc428c7d maint: Update copyright notices for 2015.
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3 Copyright (C) 2009-2015 Shai Ayal
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if ! defined (octave_gl2ps_renderer_h)
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24 #define octave_gl2ps_renderer_h 1
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25
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26 #include "graphics.h"
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27
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28 #ifdef HAVE_GL2PS_H
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29
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30 #include "gl-render.h"
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31 #include <gl2ps.h>
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32
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33 class
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34 OCTINTERP_API
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35 gl2ps_renderer : public opengl_renderer
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36 {
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37 public:
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38 gl2ps_renderer (FILE *_fp, const std::string& _term)
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39 : opengl_renderer () , fp (_fp), term (_term), fontsize (),
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40 fontname (), buffer_overflow (false) { }
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41
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42 ~gl2ps_renderer (void) { }
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43
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44 void draw (const graphics_object& go, const std::string& print_cmd);
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45
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46 protected:
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47
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48 Matrix render_text (const std::string& txt,
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49 double x, double y, double z,
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50 int halign, int valign, double rotation = 0.0);
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51
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52 void set_font (const base_properties& props);
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53
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54 void draw_axes (const axes::properties& props)
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55 {
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56 // Initialize a sorting tree (viewport) in gl2ps for each axes
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57 GLint vp[4];
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58 glGetIntegerv (GL_VIEWPORT, vp);
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59 gl2psBeginViewport (vp);
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60
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61 // Draw and finish () or there may primitives missing in the
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62 // gl2ps output.
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63 opengl_renderer::draw_axes (props);
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64 finish ();
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65
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66 // Finalize viewport
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67 GLint state = gl2psEndViewport ();
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68 if (state == GL2PS_NO_FEEDBACK)
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69 warning ("gl2ps_renderer::draw_axes: empty feedback buffer and/or nothing else to print");
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70 else if (state == GL2PS_ERROR)
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71 error ("gl2ps_renderer::draw_axes: gl2psEndPage returned GL2PS_ERROR");
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72
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73 buffer_overflow |= (state == GL2PS_OVERFLOW);
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74 }
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75
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76 void draw_text (const text::properties& props);
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77 void draw_pixels (GLsizei w, GLsizei h, GLenum format,
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78 GLenum type, const GLvoid *data);
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79
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80 void set_linestyle (const std::string& s, bool use_stipple = false)
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81 {
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82 opengl_renderer::set_linestyle (s, use_stipple);
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83
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84 if (s == "-" && ! use_stipple)
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85 gl2psDisable (GL2PS_LINE_STIPPLE);
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86 else
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87 gl2psEnable (GL2PS_LINE_STIPPLE);
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88 }
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89
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90 void set_polygon_offset (bool on, float offset = 0.0f)
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91 {
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92 if (on)
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93 {
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94 opengl_renderer::set_polygon_offset (on, offset);
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95 gl2psEnable (GL2PS_POLYGON_OFFSET_FILL);
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96 }
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97 else
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98 {
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99 gl2psDisable (GL2PS_POLYGON_OFFSET_FILL);
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100 opengl_renderer::set_polygon_offset (on, offset);
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101 }
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102 }
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103
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104 void set_linewidth (float w)
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105 {
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106 gl2psLineWidth (w);
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107 }
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108
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109 private:
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110 // Use xform to compute the coordinates of the ft_string list
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111 // that have been parsed by freetype
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112 void fix_strlist_position (double x, double y, double z,
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113 Matrix box, double rotation,
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114 std::list<ft_render::ft_string>& lst);
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115
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116 private:
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117 int alignment_to_mode (int ha, int va) const;
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118 FILE *fp;
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119 caseless_str term;
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120 double fontsize;
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121 std::string fontname;
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122 bool buffer_overflow;
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123 };
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124
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125 #endif
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06a850f83dd4 build: Remove embedded gl2ps. Require gl2ps as external dependency.
Rik <rik@octave.org>
parents: 17787
diff changeset
126
19639
61cc00ebac60 move opengl printing code from __init_fltk__.cc to gl2ps-renderer.cc
John W. Eaton <jwe@octave.org>
parents: 17822
diff changeset
127 extern OCTINTERP_API void
21197
9a5bb6996b16 write to pipe or file in gl2ps_print
John W. Eaton <jwe@octave.org>
parents: 21174
diff changeset
128 gl2ps_print (const graphics_object& fig, const std::string& stream,
19639
61cc00ebac60 move opengl printing code from __init_fltk__.cc to gl2ps-renderer.cc
John W. Eaton <jwe@octave.org>
parents: 17822
diff changeset
129 const std::string& term);
61cc00ebac60 move opengl printing code from __init_fltk__.cc to gl2ps-renderer.cc
John W. Eaton <jwe@octave.org>
parents: 17822
diff changeset
130
9798
2d6a5af744b6 printing for fltk backend using gl2ps
Shai Ayal <shaiay@users.sourceforge.net>
parents:
diff changeset
131 #endif