Mercurial > octave
view libgui/graphics/GLCanvas.cc @ 32063:3b9305e62bb7
avoid LU warnings in sparse tests (bug #64117)
* mk-sparse-tst.sh: Avoid warnings from LU in sparse tests.
author | John W. Eaton <jwe@octave.org> |
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date | Thu, 27 Apr 2023 13:25:01 -0400 |
parents | 3648ff642964 |
children | 2e484f9f1f18 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2011-2023 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include "GLCanvas.h" #include "gl-select.h" #include "gl-render.h" #include "gl2ps-print.h" #include "graphics.h" #include "interpreter.h" OCTAVE_BEGIN_NAMESPACE(octave) GLWidget::GLWidget (Canvas& parent_canvas, QWidget *parent) : QOpenGLWidget (parent), m_parent_canvas (parent_canvas), m_glfcns (), m_renderer (m_glfcns) { setFocusPolicy (Qt::ClickFocus); setFocus (); } GLWidget::~GLWidget () { } void GLWidget::initializeGL () { // The qopengl_functions object (part of Octave, not Qt) is just // wrapper around QOpenGLFunctions_1_1. Does initialization really // need to be deferred until initializeGL is called? m_glfcns.init (); // All other resources we need are currently (supposed to be) // managed by the QOpenGLWidget object so there is else nothing to // do here. If we used custom shader programs, then we would need // to initialize them here. } void GLWidget::draw (graphics_object go) { if (go) { begin_rendering (); unwind_action reset_current ([=] () { end_rendering (); }); graphics_object fig = go.get_ancestor ("figure"); double dpr = fig.get ("__device_pixel_ratio__").double_value (); m_renderer.set_viewport (dpr * width (), dpr * height ()); m_renderer.set_device_pixel_ratio (dpr); m_renderer.draw (go); } } uint8NDArray GLWidget::do_getPixels (graphics_object go) { uint8NDArray retval; if (go && go.isa ("figure")) { Matrix pos = go.get ("position").matrix_value (); double dpr = go.get ("__device_pixel_ratio__").double_value (); pos(2) *= dpr; pos(3) *= dpr; begin_rendering (); unwind_action reset_current ([=] () { end_rendering (); }); // When the figure is not visible or its size is frozen for printing, // we use a framebuffer object to make sure we are rendering on a // suitably large frame. if (go.get ("visible").string_value () == "off" || go.get ("__printing__").string_value () == "on") { QOpenGLFramebufferObject fbo (pos(2), pos(3), QOpenGLFramebufferObject::Attachment::Depth); fbo.bind (); unwind_action release_fbo ([&] () { fbo.release (); }); m_renderer.set_viewport (pos(2), pos(3)); m_renderer.set_device_pixel_ratio (dpr); m_renderer.draw (go); retval = m_renderer.get_pixels (pos(2), pos(3)); } else { m_renderer.set_viewport (pos(2), pos(3)); m_renderer.set_device_pixel_ratio (dpr); m_renderer.draw (go); retval = m_renderer.get_pixels (pos(2), pos(3)); } } return retval; } void GLWidget::do_print (const QString& file_cmd, const QString& term, graphics_object go) { if (go.valid_object ()) { begin_rendering (); unwind_action reset_current ([=] () { end_rendering (); }); graphics_object fig (go.get_ancestor ("figure")); if (fig.get ("visible").string_value () == "on") octave::gl2ps_print (m_glfcns, fig, file_cmd.toStdString (), term.toStdString ()); else { // When the figure is not visible, we use a framebuffer object // to make sure we are rendering on a suitably large frame. Matrix pos = fig.get ("position").matrix_value (); double dpr = fig.get ("__device_pixel_ratio__").double_value (); pos(2) *= dpr; pos(3) *= dpr; QOpenGLFramebufferObject fbo (pos(2), pos(3), QOpenGLFramebufferObject::Attachment::Depth); fbo.bind (); unwind_action release_fbo ([&] () { fbo.release (); }); octave::gl2ps_print (m_glfcns, fig, file_cmd.toStdString (), term.toStdString ()); } } } graphics_object GLWidget::selectFromAxes (const graphics_object& ax, const QPoint& pt) { if (ax) { begin_rendering (); unwind_action reset_current ([=] () { end_rendering (); }); octave::opengl_selector s (m_glfcns); s.set_viewport (width (), height ()); return s.select (ax, pt.x (), height () - pt.y (), octave::select_ignore_hittest); } return graphics_object (); } void GLWidget::drawZoomBox (const QPoint& p1, const QPoint& p2) { Matrix overlaycolor (3, 1); overlaycolor(0) = 0.45; overlaycolor(1) = 0.62; overlaycolor(2) = 0.81; double overlayalpha = 0.1; Matrix bordercolor = overlaycolor; double borderalpha = 0.9; double borderwidth = 1.5; m_renderer.draw_zoom_box (width (), height (), p1.x (), p1.y (), p2.x (), p2.y (), overlaycolor, overlayalpha, bordercolor, borderalpha, borderwidth); } void GLWidget::paintGL () { m_parent_canvas.canvasPaintEvent (); } void GLWidget::mouseDoubleClickEvent (QMouseEvent *xevent) { m_parent_canvas.canvasMouseDoubleClickEvent (xevent); } void GLWidget::mouseMoveEvent (QMouseEvent *xevent) { m_parent_canvas.canvasMouseMoveEvent (xevent); } void GLWidget::mousePressEvent (QMouseEvent *xevent) { m_parent_canvas.canvasMousePressEvent (xevent); } void GLWidget::mouseReleaseEvent (QMouseEvent *xevent) { m_parent_canvas.canvasMouseReleaseEvent (xevent); } void GLWidget::wheelEvent (QWheelEvent *xevent) { m_parent_canvas.canvasWheelEvent (xevent); } void GLWidget::keyPressEvent (QKeyEvent *xevent) { if (! m_parent_canvas.canvasKeyPressEvent (xevent)) QOpenGLWidget::keyPressEvent (xevent); } void GLWidget::keyReleaseEvent (QKeyEvent *xevent) { if (! m_parent_canvas.canvasKeyReleaseEvent (xevent)) QOpenGLWidget::keyReleaseEvent (xevent); } bool GLWidget::begin_rendering () { bool retval = true; if (! isValid ()) { // FIXME: Is this really the right way to manager offscreen // rendering for printing? static bool os_ctx_ok = true; if (os_ctx_ok && ! m_os_context.isValid ()) { // Try to initialize offscreen context m_os_surface.create (); if (! m_os_context.create ()) { os_ctx_ok = false; return false; } } retval = m_os_context.makeCurrent (&m_os_surface); } else makeCurrent (); return retval; } void GLWidget::end_rendering () { doneCurrent (); } GLCanvas::GLCanvas (octave::interpreter& interp, const graphics_handle& gh, QWidget *parent) : Canvas (interp, gh), m_glwidget (new GLWidget (*this, parent)) { } GLCanvas::~GLCanvas () { delete m_glwidget; } void GLCanvas::draw (const graphics_handle& gh) { gh_manager& gh_mgr = m_interpreter.get_gh_manager (); octave::autolock guard (gh_mgr.graphics_lock ()); graphics_object go = gh_mgr.get_object (gh); m_glwidget->draw (go); } uint8NDArray GLCanvas::do_getPixels (const graphics_handle& gh) { uint8NDArray retval; gh_manager& gh_mgr = m_interpreter.get_gh_manager (); graphics_object go = gh_mgr.get_object (gh); return m_glwidget->do_getPixels (go); } void GLCanvas::do_print (const QString& file_cmd, const QString& term, const graphics_handle& handle) { gh_manager& gh_mgr = m_interpreter.get_gh_manager (); octave::autolock guard (gh_mgr.graphics_lock ()); graphics_object go = gh_mgr.get_object (handle); try { m_glwidget->do_print (file_cmd, term, go); } catch (octave::execution_exception& ee) { emit interpreter_event ([=] () { // INTERPRETER THREAD throw ee; }); } } graphics_object GLCanvas::selectFromAxes (const graphics_object& ax, const QPoint& pt) { return m_glwidget->selectFromAxes (ax, pt); } void GLCanvas::drawZoomBox (const QPoint& p1, const QPoint& p2) { m_glwidget->drawZoomBox (p1, p2); } bool GLCanvas::begin_rendering () { return m_glwidget->begin_rendering (); } void GLCanvas::end_rendering () { m_glwidget->end_rendering (); } OCTAVE_END_NAMESPACE(octave)