Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/freeglut/src/egl/fg_window_egl.c @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * fg_display_android.c
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3 *
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4 * Window management methods for EGL
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5 *
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6 * Copyright (C) 2012, 2014 Sylvain Beucler
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7 *
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8 * Permission is hereby granted, free of charge, to any person obtaining a
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9 * copy of this software and associated documentation files (the "Software"),
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10 * to deal in the Software without restriction, including without limitation
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11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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12 * and/or sell copies of the Software, and to permit persons to whom the
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13 * Software is furnished to do so, subject to the following conditions:
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14 *
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15 * The above copyright notice and this permission notice shall be included
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16 * in all copies or substantial portions of the Software.
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17 *
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18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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21 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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22 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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24 */
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25
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26 #include <GL/freeglut.h>
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27 #include "fg_internal.h"
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28
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29 int fghChooseConfig(EGLConfig* config) {
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30 EGLint attributes[32];
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31 int where = 0;
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32 ATTRIB_VAL(EGL_SURFACE_TYPE, EGL_WINDOW_BIT);
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33 #ifdef EGL_OPENGL_ES3_BIT
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34 if (fgDisplay.pDisplay.egl.MinorVersion >= 5 && fgState.MajorVersion >= 3) {
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35 ATTRIB_VAL(EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT);
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36 } else
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37 #endif
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38 if (fgState.MajorVersion >= 2) {
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39 /*
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40 * Khronos does not specify a EGL_OPENGL_ES3_BIT outside of the OpenGL extension "EGL_KHR_create_context" and EGL 1.5. There are numerous references on the internet
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41 * that say to use EGL_OPENGL_ES3_BIT (pre-EGL 1.5), followed by many saying they can't find it in any headers. In fact, the official updated specification for EGL
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42 * does not have any references to OpenGL ES 3.x. Tests have shown that EGL_OPENGL_ES2_BIT will work with ES 3.x.
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43 */
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44 ATTRIB_VAL(EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT);
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45 } else {
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46 ATTRIB_VAL(EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT);
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47 }
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48 /* Technically it's possible to request a standard OpenGL (non-ES)
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49 context, but currently our build system assumes EGL => GLES */
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50 /* attribs[i++] = EGL_RENDERABLE_TYPE; */
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51 /* attribs[i++] = EGL_OPENGL_BIT; */
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52 #ifdef TARGET_HOST_BLACKBERRY
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53 /* Only 888 and 565 seem to work. Based on
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54 http://qt.gitorious.org/qt/qtbase/source/893deb1a93021cdfabe038cdf1869de33a60cbc9:src/plugins/platforms/qnx/qqnxglcontext.cpp and
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55 https://twitter.com/BlackBerryDev/status/380720927475912706 */
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56 ATTRIB_VAL(EGL_BLUE_SIZE, 8);
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57 ATTRIB_VAL(EGL_GREEN_SIZE, 8);
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58 ATTRIB_VAL(EGL_RED_SIZE, 8);
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59 #else
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60 ATTRIB_VAL(EGL_BLUE_SIZE, 1);
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61 ATTRIB_VAL(EGL_GREEN_SIZE, 1);
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62 ATTRIB_VAL(EGL_RED_SIZE, 1);
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63 #endif
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64 ATTRIB_VAL(EGL_ALPHA_SIZE, (fgState.DisplayMode & GLUT_ALPHA) ? 1 : 0);
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65 ATTRIB_VAL(EGL_DEPTH_SIZE, (fgState.DisplayMode & GLUT_DEPTH) ? 1 : 0);
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66 ATTRIB_VAL(EGL_STENCIL_SIZE, (fgState.DisplayMode & GLUT_STENCIL) ? 1 : 0);
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67 ATTRIB_VAL(EGL_SAMPLE_BUFFERS, (fgState.DisplayMode & GLUT_MULTISAMPLE) ? 1 : 0);
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68 ATTRIB_VAL(EGL_SAMPLES, (fgState.DisplayMode & GLUT_MULTISAMPLE) ? fgState.SampleNumber : 0);
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69 ATTRIB(EGL_NONE);
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70
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71 EGLint num_config;
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72 if (!eglChooseConfig(fgDisplay.pDisplay.egl.Display,
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73 attributes, config, 1, &num_config)) {
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74 fgWarning("eglChooseConfig: error %x\n", eglGetError());
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75 return 0;
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76 }
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77
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78 return 1;
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79 }
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80
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81 /**
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82 * Initialize an EGL context for the current display.
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83 */
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84 EGLContext fghCreateNewContextEGL( SFG_Window* window ) {
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85 EGLContext context;
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86 EGLint ver = -1;
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87
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88 EGLDisplay eglDisplay = fgDisplay.pDisplay.egl.Display;
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89 EGLConfig eglConfig = window->Window.pContext.egl.Config;
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90
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91 /* On GLES, user specifies the target version with glutInitContextVersion */
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92 EGLint attributes[32];
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93 int where = 0;
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94 ATTRIB_VAL(EGL_CONTEXT_CLIENT_VERSION, fgState.MajorVersion);
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95 #ifdef EGL_CONTEXT_MINOR_VERSION
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96 if (fgDisplay.pDisplay.egl.MinorVersion >= 5) {
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97 // EGL_CONTEXT_CLIENT_VERSION == EGL_CONTEXT_MAJOR_VERSION
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diff changeset
98 ATTRIB_VAL(EGL_CONTEXT_MINOR_VERSION, fgState.MinorVersion);
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99 }
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100 #endif
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101 ATTRIB(EGL_NONE);
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102
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103 context = eglCreateContext(eglDisplay, eglConfig, EGL_NO_CONTEXT, attributes);
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104 if (context == EGL_NO_CONTEXT) {
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105 fgWarning("Cannot initialize EGL context, err=%x\n", eglGetError());
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106 fghContextCreationError();
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107 }
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108
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109 eglQueryContext(fgDisplay.pDisplay.egl.Display, context, EGL_CONTEXT_CLIENT_VERSION, &ver);
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110 if (ver != fgState.MajorVersion) {
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111 fgError("Wrong GLES major version: %d\n", ver);
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112 }
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113 #ifdef EGL_CONTEXT_MINOR_VERSION
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114 if (fgDisplay.pDisplay.egl.MinorVersion >= 5) {
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115 eglQueryContext(fgDisplay.pDisplay.egl.Display, context, EGL_CONTEXT_MINOR_VERSION, &ver);
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116 if (ver != fgState.MinorVersion) {
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117 fgError("Wrong GLES minor version: %d\n", ver);
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118 }
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119 }
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120 #endif
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121
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122 return context;
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123 }
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124
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125 void fgPlatformSetWindow ( SFG_Window *window )
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126 {
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127 if ( window != fgStructure.CurrentWindow && window) {
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128 if (eglMakeCurrent(fgDisplay.pDisplay.egl.Display,
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129 window->Window.pContext.egl.Surface,
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130 window->Window.pContext.egl.Surface,
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diff changeset
131 window->Window.Context) == EGL_FALSE)
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132 fgError("eglMakeCurrent: err=%x\n", eglGetError());
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133 }
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134 }
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135
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136 /*
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137 * Really opens a window when handle is available
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138 */
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diff changeset
139 void fghPlatformOpenWindowEGL( SFG_Window* window )
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140 {
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diff changeset
141 EGLDisplay display = fgDisplay.pDisplay.egl.Display;
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diff changeset
142 EGLConfig config = window->Window.pContext.egl.Config;
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143
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144 EGLSurface surface = eglCreateWindowSurface(display, config, window->Window.Handle, NULL);
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diff changeset
145 if (surface == EGL_NO_SURFACE)
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diff changeset
146 fgError("Cannot create EGL window surface, err=%x\n", eglGetError());
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diff changeset
147 window->Window.pContext.egl.Surface = surface;
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148
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diff changeset
149 fgPlatformSetWindow(window);
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150
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diff changeset
151 /* EGLint w, h; */
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diff changeset
152 /* eglQuerySurface(display, surface, EGL_WIDTH, &w); */
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153 /* eglQuerySurface(display, surface, EGL_HEIGHT, &h); */
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diff changeset
154
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155 }
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diff changeset
156
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diff changeset
157 /*
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diff changeset
158 * Closes a window, destroying the frame and OpenGL context
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diff changeset
159 */
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diff changeset
160 void fghPlatformCloseWindowEGL( SFG_Window* window )
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diff changeset
161 {
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diff changeset
162 /* Based on fg_window_mswin fgPlatformCloseWindow */
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diff changeset
163 if( fgStructure.CurrentWindow == window )
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diff changeset
164 eglMakeCurrent(fgDisplay.pDisplay.egl.Display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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165
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diff changeset
166 if (window->Window.Context != EGL_NO_CONTEXT) {
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diff changeset
167 /* Step through the list of windows. If the rendering context is not being used by another window, then delete it */
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diff changeset
168 {
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diff changeset
169 GLboolean used = GL_FALSE;
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diff changeset
170 SFG_Window *iter;
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diff changeset
171
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diff changeset
172 for( iter = (SFG_Window*)fgStructure.Windows.First;
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diff changeset
173 iter && used == GL_FALSE;
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diff changeset
174 iter = (SFG_Window*)iter->Node.Next)
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diff changeset
175 {
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parents:
diff changeset
176 if( (iter->Window.Context == window->Window.Context) &&
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diff changeset
177 (iter != window) )
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diff changeset
178 used = GL_TRUE;
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179 }
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180
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diff changeset
181 if( !used )
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diff changeset
182 eglDestroyContext(fgDisplay.pDisplay.egl.Display, window->Window.Context);
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diff changeset
183 }
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diff changeset
184 window->Window.Context = EGL_NO_CONTEXT;
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185 }
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186
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diff changeset
187 if (window->Window.pContext.egl.Surface != EGL_NO_SURFACE) {
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diff changeset
188 eglDestroySurface(fgDisplay.pDisplay.egl.Display, window->Window.pContext.egl.Surface);
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diff changeset
189 window->Window.pContext.egl.Surface = EGL_NO_SURFACE;
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diff changeset
190 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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diff changeset
191 }