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annotate src/video/x11/SDL_x11opengl.c @ 2378:d76ecec0c3f7 gsoc2008_iphone

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iPhone SDL 1.3 demos go here. All these demos are written using pure SDL 1.3 code. No compatibility calls! Perhaps if they are any good they could be use as tests for the SDL 1.3 release.
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Fri, 18 Jul 2008 20:46:02 +0000
parents 7b53a8401195
children e1da92da346c 911db724ea24
rev   line source
1952
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Sam Lantinga <slouken@libsdl.org>
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with _this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_x11video.h"
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25
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26 /* GLX implementation of SDL OpenGL support */
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27
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28 #if SDL_VIDEO_OPENGL_GLX
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29 #include "SDL_loadso.h"
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30
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31 #if defined(__IRIX__)
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32 /* IRIX doesn't have a GL library versioning system */
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33 #define DEFAULT_OPENGL "libGL.so"
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34 #elif defined(__MACOSX__)
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35 #define DEFAULT_OPENGL "/usr/X11R6/lib/libGL.1.dylib"
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36 #elif defined(__QNXNTO__)
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37 #define DEFAULT_OPENGL "libGL.so.3"
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38 #else
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39 #define DEFAULT_OPENGL "libGL.so.1"
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40 #endif
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41
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42 #ifndef GLX_ARB_multisample
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43 #define GLX_ARB_multisample
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44 #define GLX_SAMPLE_BUFFERS_ARB 100000
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45 #define GLX_SAMPLES_ARB 100001
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46 #endif
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47
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48 #ifndef GLX_EXT_visual_rating
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49 #define GLX_EXT_visual_rating
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50 #define GLX_VISUAL_CAVEAT_EXT 0x20
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51 #define GLX_NONE_EXT 0x8000
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52 #define GLX_SLOW_VISUAL_EXT 0x8001
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53 #define GLX_NON_CONFORMANT_VISUAL_EXT 0x800D
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54 #endif
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55
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56 #define OPENGL_REQUIRS_DLOPEN
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57 #if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN)
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58 #include <dlfcn.h>
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59 #define GL_LoadObject(X) dlopen(X, (RTLD_NOW|RTLD_GLOBAL))
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60 #define GL_LoadFunction dlsym
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61 #define GL_UnloadObject dlclose
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62 #else
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63 #define GL_LoadObject SDL_LoadObject
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64 #define GL_LoadFunction SDL_LoadFunction
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65 #define GL_UnloadObject SDL_UnloadObject
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66 #endif
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67
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68 static int X11_GL_InitializeMemory(_THIS);
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69
1952
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70 int
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71 X11_GL_LoadLibrary(_THIS, const char *path)
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72 {
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73 void *handle;
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74
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75 if (_this->gl_config.driver_loaded) {
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76 if (path) {
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77 SDL_SetError("OpenGL library already loaded");
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78 return -1;
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79 } else {
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80 ++_this->gl_config.driver_loaded;
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81 return 0;
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82 }
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83 }
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84 if (path == NULL) {
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85 path = SDL_getenv("SDL_OPENGL_LIBRARY");
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86 }
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87 if (path == NULL) {
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88 path = DEFAULT_OPENGL;
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89 }
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90 handle = GL_LoadObject(path);
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91 if (!handle) {
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92 return -1;
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93 }
2243
5523312f311e Date: Wed, 15 Aug 2007 01:08:38 +0200
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94 // LoadLibrary may be called before WindowCreate!
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95 // Must create the memory used by GL
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96 X11_GL_InitializeMemory(_this);
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97
1952
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98 /* Load new function pointers */
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99 _this->gl_data->glXGetProcAddress =
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100 (void *(*)(const GLubyte *)) GL_LoadFunction(handle,
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101 "glXGetProcAddressARB");
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102 _this->gl_data->glXChooseVisual =
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103 (XVisualInfo * (*)(Display *, int, int *)) GL_LoadFunction(handle,
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104 "glXChooseVisual");
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105 _this->gl_data->glXCreateContext =
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106 (GLXContext(*)(Display *, XVisualInfo *, GLXContext, int))
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107 GL_LoadFunction(handle, "glXCreateContext");
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108 _this->gl_data->glXDestroyContext =
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109 (void (*)(Display *, GLXContext)) GL_LoadFunction(handle,
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110 "glXDestroyContext");
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111 _this->gl_data->glXMakeCurrent =
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112 (int (*)(Display *, GLXDrawable, GLXContext)) GL_LoadFunction(handle,
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113 "glXMakeCurrent");
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114 _this->gl_data->glXSwapBuffers =
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115 (void (*)(Display *, GLXDrawable)) GL_LoadFunction(handle,
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116 "glXSwapBuffers");
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117
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118 if (!_this->gl_data->glXChooseVisual ||
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119 !_this->gl_data->glXCreateContext ||
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120 !_this->gl_data->glXDestroyContext ||
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121 !_this->gl_data->glXMakeCurrent || !_this->gl_data->glXSwapBuffers) {
1952
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122 SDL_SetError("Could not retrieve OpenGL functions");
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123 return -1;
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124 }
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125
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126 _this->gl_config.dll_handle = handle;
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127 SDL_strlcpy(_this->gl_config.driver_path, path,
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128 SDL_arraysize(_this->gl_config.driver_path));
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129 _this->gl_config.driver_loaded = 1;
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130 return 0;
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131 }
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132
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133 void *
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134 X11_GL_GetProcAddress(_THIS, const char *proc)
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135 {
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136 void *handle;
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137
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138 handle = _this->gl_config.dll_handle;
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139 if (_this->gl_data->glXGetProcAddress) {
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140 return _this->gl_data->glXGetProcAddress((const GLubyte *) proc);
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141 }
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142 return GL_LoadFunction(handle, proc);
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143 }
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144
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145 static void
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146 X11_GL_UnloadLibrary(_THIS)
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147 {
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148 if (_this->gl_config.driver_loaded > 0) {
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149 if (--_this->gl_config.driver_loaded > 0) {
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150 return;
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151 }
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152 GL_UnloadObject(_this->gl_config.dll_handle);
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153 _this->gl_config.dll_handle = NULL;
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diff changeset
154 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
156
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157 static SDL_bool
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 HasExtension(const char *extension, const char *extensions)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 const char *start;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 const char *where, *terminator;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163 /* Extension names should not have spaces. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 where = SDL_strchr(extension, ' ');
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
165 if (where || *extension == '\0')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
166 return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168 if (!extensions)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169 return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
170
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
171 /* It takes a bit of care to be fool-proof about parsing the
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172 * OpenGL extensions string. Don't be fooled by sub-strings,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
173 * etc. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
174
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
175 start = extensions;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
177 for (;;) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
178 where = SDL_strstr(start, extension);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
179 if (!where)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
180 break;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
182 terminator = where + SDL_strlen(extension);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
183 if (where == start || *(where - 1) == ' ')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184 if (*terminator == ' ' || *terminator == '\0')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
185 return SDL_TRUE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 start = terminator;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
190 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192 static void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
193 X11_GL_InitExtensions(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
194 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
195 Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
196 int screen = ((SDL_DisplayData *) SDL_CurrentDisplay.driverdata)->screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
197 XVisualInfo *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
198 XSetWindowAttributes xattr;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
199 Window w;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
200 GLXContext context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201 const char *(*glXQueryExtensionsStringFunc) (Display *, int);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
202 const char *extensions;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
204 vinfo = X11_GL_GetVisual(_this, display, screen);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
205 if (!vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
206 return;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
208 xattr.background_pixel = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
209 xattr.border_pixel = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
210 xattr.colormap =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211 XCreateColormap(display, RootWindow(display, screen), vinfo->visual,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212 AllocNone);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
213 w = XCreateWindow(display, RootWindow(display, screen), 0, 0, 32, 32, 0,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
214 vinfo->depth, InputOutput, vinfo->visual,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215 (CWBackPixel | CWBorderPixel | CWColormap), &xattr);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
216 context = _this->gl_data->glXCreateContext(display, vinfo, NULL, True);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
217 if (context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
218 _this->gl_data->glXMakeCurrent(display, w, context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220 XFree(vinfo);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
222 glXQueryExtensionsStringFunc =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
223 (const char *(*)(Display *, int)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
224 "glXQueryExtensionsString");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 if (glXQueryExtensionsStringFunc) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226 extensions = glXQueryExtensionsStringFunc(display, screen);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
227 } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228 extensions = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
229 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
230
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231 /* Check for SGI_swap_control */
2105
12bcd4fd2606 Date: Wed, 23 May 2007 00:39:47 +0300
Ryan C. Gordon <icculus@icculus.org>
parents: 1956
diff changeset
232 if (HasExtension("GLX_SGI_swap_control", extensions)) {
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 _this->gl_data->glXSwapIntervalSGI =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 (int (*)(int)) X11_GL_GetProcAddress(_this, "glXSwapIntervalSGI");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
237 /* Check for GLX_MESA_swap_control */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
238 if (HasExtension("GLX_MESA_swap_control", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 _this->gl_data->glXSwapIntervalMESA =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 (GLint(*)(unsigned)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 "glXSwapIntervalMESA");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 _this->gl_data->glXGetSwapIntervalMESA =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 (GLint(*)(void)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 "glXGetSwapIntervalMESA");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 /* Check for GLX_EXT_visual_rating */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 if (HasExtension("GLX_EXT_visual_rating", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 _this->gl_data->HAS_GLX_EXT_visual_rating = SDL_TRUE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 if (context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253 _this->gl_data->glXMakeCurrent(display, None, NULL);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 _this->gl_data->glXDestroyContext(display, context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 XDestroyWindow(display, w);
2323
4ac07ae446d3 Fixed many valgrind errors. But, I broke testdyngl.
Bob Pendleton <bob@pendleton.com>
parents: 2322
diff changeset
257 X11_PumpEvents(_this);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259
2322
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
260 static int
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
261 X11_GL_InitializeMemory(_THIS)
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 if (_this->gl_data) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 return 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 _this->gl_data =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 (struct SDL_GLDriverData *) SDL_calloc(1,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269 sizeof(struct
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 SDL_GLDriverData));
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
271 if (!_this->gl_data) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
272 SDL_OutOfMemory();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
273 return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 }
2322
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
275 _this->gl_data->initialized = 0;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
276
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
277 return 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
278 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
279
2322
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
280 int
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
281 X11_GL_Initialize(_THIS)
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
282 {
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
283
2324
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
284 if (X11_GL_InitializeMemory(_this) < 0) {
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
285 return -1;
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
286 }
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
287 ++_this->gl_data->initialized;
2322
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
288
2324
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
289 if (X11_GL_LoadLibrary(_this, NULL) < 0) {
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
290 return -1;
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
291 }
2322
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
292
2324
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
293 /* Initialize extensions */
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
294 X11_GL_InitExtensions(_this);
2322
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
295
2324
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
296 return 0;
2322
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
297 }
c25d45b7add3 Fixing valgrind errors.
Bob Pendleton <bob@pendleton.com>
parents: 2320
diff changeset
298
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
299 void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
300 X11_GL_Shutdown(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
301 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
302 if (!_this->gl_data || (--_this->gl_data->initialized > 0)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
303 return;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
304 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
305
1954
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
306 /* Don't actually unload the library, since it may have registered
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
307 * X11 shutdown hooks, per the notes at:
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
308 * http://dri.sourceforge.net/doc/DRIuserguide.html
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
309 * //X11_GL_UnloadLibrary(_this);
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
310 */
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
311
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
312 SDL_free(_this->gl_data);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
313 _this->gl_data = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
314 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
315
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
316 XVisualInfo *
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
317 X11_GL_GetVisual(_THIS, Display * display, int screen)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
318 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
319 XVisualInfo *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
320
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
321 /* 64 seems nice. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
322 int attribs[64];
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
323 int i;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
324
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
325 /* Setup our GLX attributes according to the gl_config. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
326 i = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
327 attribs[i++] = GLX_RGBA;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
328 attribs[i++] = GLX_RED_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
329 attribs[i++] = _this->gl_config.red_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
330 attribs[i++] = GLX_GREEN_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
331 attribs[i++] = _this->gl_config.green_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
332 attribs[i++] = GLX_BLUE_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
333 attribs[i++] = _this->gl_config.blue_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
334
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
335 if (_this->gl_config.alpha_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
336 attribs[i++] = GLX_ALPHA_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
337 attribs[i++] = _this->gl_config.alpha_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
338 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
339
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
340 if (_this->gl_config.buffer_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
341 attribs[i++] = GLX_BUFFER_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
342 attribs[i++] = _this->gl_config.buffer_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
343 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
344
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
345 if (_this->gl_config.double_buffer) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
346 attribs[i++] = GLX_DOUBLEBUFFER;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
347 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
348
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
349 attribs[i++] = GLX_DEPTH_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
350 attribs[i++] = _this->gl_config.depth_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
351
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
352 if (_this->gl_config.stencil_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
353 attribs[i++] = GLX_STENCIL_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
354 attribs[i++] = _this->gl_config.stencil_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
355 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
356
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
357 if (_this->gl_config.accum_red_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
358 attribs[i++] = GLX_ACCUM_RED_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
359 attribs[i++] = _this->gl_config.accum_red_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
360 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
361
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
362 if (_this->gl_config.accum_green_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
363 attribs[i++] = GLX_ACCUM_GREEN_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
364 attribs[i++] = _this->gl_config.accum_green_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
365 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
366
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
367 if (_this->gl_config.accum_blue_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
368 attribs[i++] = GLX_ACCUM_BLUE_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
369 attribs[i++] = _this->gl_config.accum_blue_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
370 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
371
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
372 if (_this->gl_config.accum_alpha_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
373 attribs[i++] = GLX_ACCUM_ALPHA_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
374 attribs[i++] = _this->gl_config.accum_alpha_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
375 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
376
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
377 if (_this->gl_config.stereo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
378 attribs[i++] = GLX_STEREO;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
379 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
380
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
381 if (_this->gl_config.multisamplebuffers) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
382 attribs[i++] = GLX_SAMPLE_BUFFERS_ARB;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
383 attribs[i++] = _this->gl_config.multisamplebuffers;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
384 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
385
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
386 if (_this->gl_config.multisamplesamples) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
387 attribs[i++] = GLX_SAMPLES_ARB;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
388 attribs[i++] = _this->gl_config.multisamplesamples;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
389 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
390
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
391 if (_this->gl_config.accelerated >= 0
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
392 && _this->gl_data->HAS_GLX_EXT_visual_rating) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
393 attribs[i++] = GLX_VISUAL_CAVEAT_EXT;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
394 attribs[i++] = GLX_NONE_EXT;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
395 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
396 #ifdef GLX_DIRECT_COLOR /* Try for a DirectColor visual for gamma support */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
397 if (!SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR")) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
398 attribs[i++] = GLX_X_VISUAL_TYPE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
399 attribs[i++] = GLX_DIRECT_COLOR;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
400 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
401 #endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
402 attribs[i++] = None;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
403
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
404 vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
405 #ifdef GLX_DIRECT_COLOR
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
406 if (!vinfo && !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR")) { /* No DirectColor visual? Try again.. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
407 attribs[i - 3] = None;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
408 vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
409 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
410 #endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
411 if (!vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
412 SDL_SetError("Couldn't find matching GLX visual");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
413 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
414 return vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
415 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
416
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
417 SDL_GLContext
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
418 X11_GL_CreateContext(_THIS, SDL_Window * window)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
419 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
420 SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
421 Display *display = data->videodata->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
422 int screen =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
423 ((SDL_DisplayData *) SDL_GetDisplayFromWindow(window)->driverdata)->
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
424 screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
425 XWindowAttributes xattr;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
426 XVisualInfo v, *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
427 int n;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
428 GLXContext context = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
429
1955
Sam Lantinga <slouken@libsdl.org>
parents: 1954
diff changeset
430 /* We do this to create a clean separation between X and GLX errors. */
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
431 XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
432 XGetWindowAttributes(display, data->window, &xattr);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
433 v.screen = screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
434 v.visualid = XVisualIDFromVisual(xattr.visual);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
435 vinfo = XGetVisualInfo(display, VisualScreenMask | VisualIDMask, &v, &n);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
436 if (vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
437 context =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
438 _this->gl_data->glXCreateContext(display, vinfo, NULL, True);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
439 XFree(vinfo);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
440 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
441 XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
442
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
443 if (!context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
444 SDL_SetError("Could not create GL context");
2178
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
445 return NULL;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
446 }
2178
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
447
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
448 if (X11_GL_MakeCurrent(_this, window, context) < 0) {
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
449 X11_GL_DeleteContext(_this, context);
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
450 return NULL;
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
451 }
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
452
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
453 return context;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
454 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
455
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
456 int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
457 X11_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
458 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
459 Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
460 Window drawable =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
461 (window ? ((SDL_WindowData *) window->driverdata)->window : None);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
462 GLXContext glx_context = (GLXContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
463 int status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
464
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
465 status = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
466 if (!_this->gl_data->glXMakeCurrent(display, drawable, glx_context)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
467 SDL_SetError("Unable to make GL context current");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
468 status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
469 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
470 XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
471
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
472 return (status);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
473 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
474
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
475 /*
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
476 0 is a valid argument to glxSwapIntervalMESA and setting it to 0
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
477 with the MESA version of the extension will undo the effect of a
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
478 previous call with a value that is greater than zero (or at least
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
479 that is what the FM says. OTOH, 0 is an invalid argument to
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
480 glxSwapIntervalSGI and it returns an error if you call it with 0 as
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
481 an argument.
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
482 */
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
483
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
484 static int swapinterval = -1;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
485 int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
486 X11_GL_SetSwapInterval(_THIS, int interval)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
487 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
488 int status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
489
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
490 if (_this->gl_data->glXSwapIntervalMESA) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
491 status = _this->gl_data->glXSwapIntervalMESA(interval);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
492 if (status != 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
493 SDL_SetError("glxSwapIntervalMESA failed");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
494 status = -1;
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
495 } else {
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
496 swapinterval = interval;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
497 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
498 } else if (_this->gl_data->glXSwapIntervalSGI) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
499 status = _this->gl_data->glXSwapIntervalSGI(interval);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
500 if (status != 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
501 SDL_SetError("glxSwapIntervalSGI failed");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
502 status = -1;
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
503 } else {
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
504 swapinterval = interval;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
505 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
506 } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
507 SDL_Unsupported();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
508 status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
509 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
510 return status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
511 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
512
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
513 int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
514 X11_GL_GetSwapInterval(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
515 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
516 if (_this->gl_data->glXGetSwapIntervalMESA) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
517 return _this->gl_data->glXGetSwapIntervalMESA();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
518 } else {
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
519 return swapinterval;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
520 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
521 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
522
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
523 void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
524 X11_GL_SwapWindow(_THIS, SDL_Window * window)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
525 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
526 SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
527 Display *display = data->videodata->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
528
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
529 _this->gl_data->glXSwapBuffers(display, data->window);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
530 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
531
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
532 void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
533 X11_GL_DeleteContext(_THIS, SDL_GLContext context)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
534 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
535 Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
536 GLXContext glx_context = (GLXContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
537
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
538 _this->gl_data->glXDestroyContext(display, glx_context);
2324
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
539 XSync(display, False);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
540 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
541
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
542 #endif /* SDL_VIDEO_OPENGL_GLX */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
543
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
544 /* vi: set ts=4 sw=4 expandtab: */