annotate src/video/x11/SDL_x11gl.c @ 1635:92947e3a18db

Make sure code is only compiled if the appropriate subsystem is enabled
author Sam Lantinga <slouken@libsdl.org>
date Fri, 14 Apr 2006 04:46:47 +0000
parents d75c2d78e87d
children 96c2f89cc7e1 3b2a92126f4d
rev   line source
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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 #include "../../events/SDL_events_c.h"
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26 #include "SDL_x11dga_c.h"
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27 #include "SDL_x11gl_c.h"
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28
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29 #if defined(__IRIX__)
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30 /* IRIX doesn't have a GL library versioning system */
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31 #define DEFAULT_OPENGL "libGL.so"
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32 #elif defined(__MACOSX__)
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33 #define DEFAULT_OPENGL "/usr/X11R6/lib/libGL.1.dylib"
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34 #elif defined(__QNXNTO__)
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35 #define DEFAULT_OPENGL "libGL.so.3"
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36 #else
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37 #define DEFAULT_OPENGL "libGL.so.1"
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38 #endif
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39
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40 #ifndef GLX_ARB_multisample
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41 #define GLX_ARB_multisample
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42 #define GLX_SAMPLE_BUFFERS_ARB 100000
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43 #define GLX_SAMPLES_ARB 100001
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44 #endif
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45
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46 XVisualInfo *X11_GL_GetVisual(_THIS)
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47 {
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48 #if SDL_VIDEO_OPENGL_GLX
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49 /* 64 seems nice. */
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50 int attribs[64];
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51 int i;
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52
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53 /* load the gl driver from a default path */
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54 if ( ! this->gl_config.driver_loaded ) {
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55 /* no driver has been loaded, use default (ourselves) */
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56 if ( X11_GL_LoadLibrary(this, NULL) < 0 ) {
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57 return NULL;
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58 }
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59 }
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60
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61 /* See if we already have a window which we must use */
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62 if ( SDL_windowid ) {
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63 XWindowAttributes a;
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64 XVisualInfo vi_in;
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65 int out_count;
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66
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67 XGetWindowAttributes(SDL_Display, SDL_Window, &a);
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68 vi_in.screen = SDL_Screen;
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69 vi_in.visualid = XVisualIDFromVisual(a.visual);
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70 glx_visualinfo = XGetVisualInfo(SDL_Display,
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71 VisualScreenMask|VisualIDMask, &vi_in, &out_count);
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72 return glx_visualinfo;
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73 }
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74
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75 /* Setup our GLX attributes according to the gl_config. */
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76 i = 0;
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77 attribs[i++] = GLX_RGBA;
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78 attribs[i++] = GLX_RED_SIZE;
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79 attribs[i++] = this->gl_config.red_size;
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80 attribs[i++] = GLX_GREEN_SIZE;
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81 attribs[i++] = this->gl_config.green_size;
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82 attribs[i++] = GLX_BLUE_SIZE;
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83 attribs[i++] = this->gl_config.blue_size;
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84
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85 if( this->gl_config.alpha_size ) {
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86 attribs[i++] = GLX_ALPHA_SIZE;
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87 attribs[i++] = this->gl_config.alpha_size;
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88 }
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89
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90 if( this->gl_config.buffer_size ) {
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91 attribs[i++] = GLX_BUFFER_SIZE;
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92 attribs[i++] = this->gl_config.buffer_size;
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93 }
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94
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95 if( this->gl_config.double_buffer ) {
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96 attribs[i++] = GLX_DOUBLEBUFFER;
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97 }
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98
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99 attribs[i++] = GLX_DEPTH_SIZE;
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100 attribs[i++] = this->gl_config.depth_size;
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101
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102 if( this->gl_config.stencil_size ) {
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103 attribs[i++] = GLX_STENCIL_SIZE;
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104 attribs[i++] = this->gl_config.stencil_size;
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105 }
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106
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107 if( this->gl_config.accum_red_size ) {
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108 attribs[i++] = GLX_ACCUM_RED_SIZE;
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109 attribs[i++] = this->gl_config.accum_red_size;
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110 }
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111
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112 if( this->gl_config.accum_green_size ) {
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113 attribs[i++] = GLX_ACCUM_GREEN_SIZE;
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114 attribs[i++] = this->gl_config.accum_green_size;
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115 }
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116
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117 if( this->gl_config.accum_blue_size ) {
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118 attribs[i++] = GLX_ACCUM_BLUE_SIZE;
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119 attribs[i++] = this->gl_config.accum_blue_size;
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120 }
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121
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122 if( this->gl_config.accum_alpha_size ) {
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123 attribs[i++] = GLX_ACCUM_ALPHA_SIZE;
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124 attribs[i++] = this->gl_config.accum_alpha_size;
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125 }
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126
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127 if( this->gl_config.stereo ) {
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128 attribs[i++] = GLX_STEREO;
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129 }
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130
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131 if( this->gl_config.multisamplebuffers ) {
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132 attribs[i++] = GLX_SAMPLE_BUFFERS_ARB;
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133 attribs[i++] = this->gl_config.multisamplebuffers;
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134 }
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135
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136 if( this->gl_config.multisamplesamples ) {
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137 attribs[i++] = GLX_SAMPLES_ARB;
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138 attribs[i++] = this->gl_config.multisamplesamples;
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139 }
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140
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141 #ifdef GLX_DIRECT_COLOR /* Try for a DirectColor visual for gamma support */
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142 if ( !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) {
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143 attribs[i++] = GLX_X_VISUAL_TYPE;
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144 attribs[i++] = GLX_DIRECT_COLOR;
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parents: 862
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145 }
0
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146 #endif
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147 attribs[i++] = None;
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148
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diff changeset
149 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display,
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diff changeset
150 SDL_Screen, attribs);
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diff changeset
151 #ifdef GLX_DIRECT_COLOR
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3692456e7b0f Use SDL_ prefixed versions of C library functions.
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diff changeset
152 if( !glx_visualinfo && !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { /* No DirectColor visual? Try again.. */
0
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153 attribs[i-3] = None;
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154 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display,
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155 SDL_Screen, attribs);
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156 }
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diff changeset
157 #endif
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diff changeset
158 if( !glx_visualinfo ) {
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159 SDL_SetError( "Couldn't find matching GLX visual");
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160 return NULL;
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diff changeset
161 }
1315
e94b0d7c33bc Merged useful fixes from 1.3 branch
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parents: 1312
diff changeset
162 /*
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parents: 1312
diff changeset
163 printf("Found GLX visual 0x%x\n", glx_visualinfo->visualid);
e94b0d7c33bc Merged useful fixes from 1.3 branch
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164 */
0
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165 return glx_visualinfo;
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166 #else
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167 SDL_SetError("X11 driver not configured with OpenGL");
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168 return NULL;
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diff changeset
169 #endif
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170 }
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171
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diff changeset
172 int X11_GL_CreateWindow(_THIS, int w, int h)
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parents:
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173 {
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174 int retval;
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19418e4422cb New configure-based build system. Still work in progress, but much improved
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175 #if SDL_VIDEO_OPENGL_GLX
0
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176 XSetWindowAttributes attributes;
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177 unsigned long mask;
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178 unsigned long black;
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179
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180 black = (glx_visualinfo->visual == DefaultVisual(SDL_Display,
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181 SDL_Screen))
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182 ? BlackPixel(SDL_Display, SDL_Screen) : 0;
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183 attributes.background_pixel = black;
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184 attributes.border_pixel = black;
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185 attributes.colormap = SDL_XColorMap;
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186 mask = CWBackPixel | CWBorderPixel | CWColormap;
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187
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3ba88cb7eb1b Updated dynamic X11 code. See details in Bugzilla #170.
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188 SDL_Window = XCreateWindow(SDL_Display, WMwindow,
0
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189 0, 0, w, h, 0, glx_visualinfo->depth,
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190 InputOutput, glx_visualinfo->visual,
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191 mask, &attributes);
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192 if ( !SDL_Window ) {
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193 SDL_SetError("Could not create window");
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diff changeset
194 return -1;
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parents:
diff changeset
195 }
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196 retval = 0;
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197 #else
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198 SDL_SetError("X11 driver not configured with OpenGL");
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199 retval = -1;
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diff changeset
200 #endif
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diff changeset
201 return(retval);
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parents:
diff changeset
202 }
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parents:
diff changeset
203
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parents:
diff changeset
204 int X11_GL_CreateContext(_THIS)
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parents:
diff changeset
205 {
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diff changeset
206 int retval;
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
207 #if SDL_VIDEO_OPENGL_GLX
0
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parents:
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208 /* We do this to create a clean separation between X and GLX errors. */
1575
3ba88cb7eb1b Updated dynamic X11 code. See details in Bugzilla #170.
Ryan C. Gordon <icculus@icculus.org>
parents: 1402
diff changeset
209 XSync( SDL_Display, False );
0
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diff changeset
210 glx_context = this->gl_data->glXCreateContext(GFX_Display,
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diff changeset
211 glx_visualinfo, NULL, True);
1575
3ba88cb7eb1b Updated dynamic X11 code. See details in Bugzilla #170.
Ryan C. Gordon <icculus@icculus.org>
parents: 1402
diff changeset
212 XSync( GFX_Display, False );
0
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parents:
diff changeset
213
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parents:
diff changeset
214 if (glx_context == NULL) {
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diff changeset
215 SDL_SetError("Could not create GL context");
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parents:
diff changeset
216 return -1;
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parents:
diff changeset
217 }
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parents:
diff changeset
218
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diff changeset
219 gl_active = 1;
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parents:
diff changeset
220 #else
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parents:
diff changeset
221 SDL_SetError("X11 driver not configured with OpenGL");
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parents:
diff changeset
222 #endif
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parents:
diff changeset
223 if ( gl_active ) {
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diff changeset
224 retval = 0;
74212992fb08 Initial revision
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parents:
diff changeset
225 } else {
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diff changeset
226 retval = -1;
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parents:
diff changeset
227 }
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parents:
diff changeset
228 return(retval);
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parents:
diff changeset
229 }
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parents:
diff changeset
230
74212992fb08 Initial revision
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parents:
diff changeset
231 void X11_GL_Shutdown(_THIS)
74212992fb08 Initial revision
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parents:
diff changeset
232 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
233 #if SDL_VIDEO_OPENGL_GLX
0
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parents:
diff changeset
234 /* Clean up OpenGL */
74212992fb08 Initial revision
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parents:
diff changeset
235 if( glx_context ) {
74212992fb08 Initial revision
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parents:
diff changeset
236 this->gl_data->glXMakeCurrent(GFX_Display, None, NULL);
74212992fb08 Initial revision
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parents:
diff changeset
237
74212992fb08 Initial revision
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parents:
diff changeset
238 if (glx_context != NULL)
74212992fb08 Initial revision
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parents:
diff changeset
239 this->gl_data->glXDestroyContext(GFX_Display, glx_context);
74212992fb08 Initial revision
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parents:
diff changeset
240
74212992fb08 Initial revision
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parents:
diff changeset
241 glx_context = NULL;
74212992fb08 Initial revision
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parents:
diff changeset
242 }
74212992fb08 Initial revision
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parents:
diff changeset
243 gl_active = 0;
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
244 #endif /* SDL_VIDEO_OPENGL_GLX */
0
74212992fb08 Initial revision
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parents:
diff changeset
245 }
74212992fb08 Initial revision
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parents:
diff changeset
246
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
247 #if SDL_VIDEO_OPENGL_GLX
0
74212992fb08 Initial revision
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parents:
diff changeset
248
74212992fb08 Initial revision
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parents:
diff changeset
249 /* Make the current context active */
74212992fb08 Initial revision
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parents:
diff changeset
250 int X11_GL_MakeCurrent(_THIS)
74212992fb08 Initial revision
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parents:
diff changeset
251 {
74212992fb08 Initial revision
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parents:
diff changeset
252 int retval;
638
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
253
0
74212992fb08 Initial revision
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parents:
diff changeset
254 retval = 0;
74212992fb08 Initial revision
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parents:
diff changeset
255 if ( ! this->gl_data->glXMakeCurrent(GFX_Display,
74212992fb08 Initial revision
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parents:
diff changeset
256 SDL_Window, glx_context) ) {
74212992fb08 Initial revision
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parents:
diff changeset
257 SDL_SetError("Unable to make GL context current");
74212992fb08 Initial revision
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parents:
diff changeset
258 retval = -1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
259 }
1575
3ba88cb7eb1b Updated dynamic X11 code. See details in Bugzilla #170.
Ryan C. Gordon <icculus@icculus.org>
parents: 1402
diff changeset
260 XSync( GFX_Display, False );
0
74212992fb08 Initial revision
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parents:
diff changeset
261
74212992fb08 Initial revision
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parents:
diff changeset
262 /* More Voodoo X server workarounds... Grr... */
74212992fb08 Initial revision
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parents:
diff changeset
263 SDL_Lock_EventThread();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 X11_CheckDGAMouse(this);
74212992fb08 Initial revision
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parents:
diff changeset
265 SDL_Unlock_EventThread();
74212992fb08 Initial revision
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parents:
diff changeset
266
74212992fb08 Initial revision
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parents:
diff changeset
267 return(retval);
74212992fb08 Initial revision
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parents:
diff changeset
268 }
74212992fb08 Initial revision
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parents:
diff changeset
269
74212992fb08 Initial revision
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parents:
diff changeset
270 /* Get attribute data from glX. */
74212992fb08 Initial revision
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parents:
diff changeset
271 int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
74212992fb08 Initial revision
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parents:
diff changeset
272 {
74212992fb08 Initial revision
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parents:
diff changeset
273 int retval;
74212992fb08 Initial revision
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parents:
diff changeset
274 int glx_attrib = None;
74212992fb08 Initial revision
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parents:
diff changeset
275
74212992fb08 Initial revision
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parents:
diff changeset
276 switch( attrib ) {
74212992fb08 Initial revision
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parents:
diff changeset
277 case SDL_GL_RED_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
278 glx_attrib = GLX_RED_SIZE;
74212992fb08 Initial revision
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parents:
diff changeset
279 break;
74212992fb08 Initial revision
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parents:
diff changeset
280 case SDL_GL_GREEN_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
281 glx_attrib = GLX_GREEN_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 break;
74212992fb08 Initial revision
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parents:
diff changeset
283 case SDL_GL_BLUE_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
284 glx_attrib = GLX_BLUE_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 break;
74212992fb08 Initial revision
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parents:
diff changeset
286 case SDL_GL_ALPHA_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
287 glx_attrib = GLX_ALPHA_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 break;
74212992fb08 Initial revision
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parents:
diff changeset
289 case SDL_GL_DOUBLEBUFFER:
74212992fb08 Initial revision
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parents:
diff changeset
290 glx_attrib = GLX_DOUBLEBUFFER;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 break;
74212992fb08 Initial revision
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parents:
diff changeset
292 case SDL_GL_BUFFER_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
293 glx_attrib = GLX_BUFFER_SIZE;
74212992fb08 Initial revision
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parents:
diff changeset
294 break;
74212992fb08 Initial revision
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parents:
diff changeset
295 case SDL_GL_DEPTH_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
296 glx_attrib = GLX_DEPTH_SIZE;
74212992fb08 Initial revision
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parents:
diff changeset
297 break;
74212992fb08 Initial revision
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parents:
diff changeset
298 case SDL_GL_STENCIL_SIZE:
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parents:
diff changeset
299 glx_attrib = GLX_STENCIL_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 break;
74212992fb08 Initial revision
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parents:
diff changeset
301 case SDL_GL_ACCUM_RED_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
302 glx_attrib = GLX_ACCUM_RED_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 case SDL_GL_ACCUM_GREEN_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
305 glx_attrib = GLX_ACCUM_GREEN_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 break;
74212992fb08 Initial revision
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parents:
diff changeset
307 case SDL_GL_ACCUM_BLUE_SIZE:
74212992fb08 Initial revision
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parents:
diff changeset
308 glx_attrib = GLX_ACCUM_BLUE_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 case SDL_GL_ACCUM_ALPHA_SIZE:
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parents:
diff changeset
311 glx_attrib = GLX_ACCUM_ALPHA_SIZE;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 break;
450
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
313 case SDL_GL_STEREO:
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
314 glx_attrib = GLX_STEREO;
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
315 break;
656
864e2d2a9a55 Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents: 655
diff changeset
316 case SDL_GL_MULTISAMPLEBUFFERS:
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
317 glx_attrib = GLX_SAMPLE_BUFFERS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
318 break;
656
864e2d2a9a55 Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents: 655
diff changeset
319 case SDL_GL_MULTISAMPLESAMPLES:
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
320 glx_attrib = GLX_SAMPLES_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
321 break;
0
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parents:
diff changeset
322 default:
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parents:
diff changeset
323 return(-1);
74212992fb08 Initial revision
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parents:
diff changeset
324 }
74212992fb08 Initial revision
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parents:
diff changeset
325
74212992fb08 Initial revision
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diff changeset
326 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value);
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parents:
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327
74212992fb08 Initial revision
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parents:
diff changeset
328 return retval;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
329 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
330
74212992fb08 Initial revision
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parents:
diff changeset
331 void X11_GL_SwapBuffers(_THIS)
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parents:
diff changeset
332 {
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parents:
diff changeset
333 this->gl_data->glXSwapBuffers(GFX_Display, SDL_Window);
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parents:
diff changeset
334 }
74212992fb08 Initial revision
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parents:
diff changeset
335
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
336 #endif /* SDL_VIDEO_OPENGL_GLX */
0
74212992fb08 Initial revision
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parents:
diff changeset
337
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
338 void X11_GL_UnloadLibrary(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
339 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
340 #if SDL_VIDEO_OPENGL_GLX
0
74212992fb08 Initial revision
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parents:
diff changeset
341 if ( this->gl_config.driver_loaded ) {
1191
2bd4cec0de63 Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents: 1182
diff changeset
342
2bd4cec0de63 Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents: 1182
diff changeset
343 SDL_UnloadObject(this->gl_config.dll_handle);
0
74212992fb08 Initial revision
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parents:
diff changeset
344
74212992fb08 Initial revision
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parents:
diff changeset
345 this->gl_data->glXGetProcAddress = NULL;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346 this->gl_data->glXChooseVisual = NULL;
74212992fb08 Initial revision
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parents:
diff changeset
347 this->gl_data->glXCreateContext = NULL;
74212992fb08 Initial revision
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parents:
diff changeset
348 this->gl_data->glXDestroyContext = NULL;
74212992fb08 Initial revision
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parents:
diff changeset
349 this->gl_data->glXMakeCurrent = NULL;
74212992fb08 Initial revision
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parents:
diff changeset
350 this->gl_data->glXSwapBuffers = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
351
74212992fb08 Initial revision
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parents:
diff changeset
352 this->gl_config.dll_handle = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
353 this->gl_config.driver_loaded = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
355 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
356 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
357
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
358 #if SDL_VIDEO_OPENGL_GLX
1182
e8e8dcb68e7a X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1168
diff changeset
359
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
360 /* Passing a NULL path means load pointers from the application */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
361 int X11_GL_LoadLibrary(_THIS, const char* path)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
362 {
1191
2bd4cec0de63 Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents: 1182
diff changeset
363 void* handle = NULL;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
364
1182
e8e8dcb68e7a X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1168
diff changeset
365 if ( gl_active ) {
e8e8dcb68e7a X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1168
diff changeset
366 SDL_SetError("OpenGL context already created");
e8e8dcb68e7a X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1168
diff changeset
367 return -1;
e8e8dcb68e7a X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1168
diff changeset
368 }
e8e8dcb68e7a X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1168
diff changeset
369
e8e8dcb68e7a X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1168
diff changeset
370 if ( path == NULL ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1315
diff changeset
371 path = SDL_getenv("SDL_VIDEO_GL_DRIVER");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372 if ( path == NULL ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
373 path = DEFAULT_OPENGL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
374 }
1191
2bd4cec0de63 Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents: 1182
diff changeset
375 }
2bd4cec0de63 Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents: 1182
diff changeset
376
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
377 handle = SDL_LoadObject(path);
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
378 if ( handle == NULL ) {
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
379 /* SDL_LoadObject() will call SDL_SetError() for us. */
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
380 return -1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
381 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
383 /* Unload the old driver and reset the pointers */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
384 X11_GL_UnloadLibrary(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
385
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 /* Load new function pointers */
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
387 this->gl_data->glXGetProcAddress =
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
388 (void *(*)(const GLubyte *)) SDL_LoadFunction(handle, "glXGetProcAddressARB");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
389 this->gl_data->glXChooseVisual =
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
390 (XVisualInfo *(*)(Display *, int, int *)) SDL_LoadFunction(handle, "glXChooseVisual");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
391 this->gl_data->glXCreateContext =
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
392 (GLXContext (*)(Display *, XVisualInfo *, GLXContext, int)) SDL_LoadFunction(handle, "glXCreateContext");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
393 this->gl_data->glXDestroyContext =
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
394 (void (*)(Display *, GLXContext)) SDL_LoadFunction(handle, "glXDestroyContext");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
395 this->gl_data->glXMakeCurrent =
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
396 (int (*)(Display *, GLXDrawable, GLXContext)) SDL_LoadFunction(handle, "glXMakeCurrent");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
397 this->gl_data->glXSwapBuffers =
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
398 (void (*)(Display *, GLXDrawable)) SDL_LoadFunction(handle, "glXSwapBuffers");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
399 this->gl_data->glXGetConfig =
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
400 (int (*)(Display *, XVisualInfo *, int, int *)) SDL_LoadFunction(handle, "glXGetConfig");
638
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
401 this->gl_data->glXQueryExtensionsString =
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
402 (const char *(*)(Display *, int)) SDL_LoadFunction(handle, "glXQueryExtensionsString");
638
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
403
1315
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
404
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 if ( (this->gl_data->glXChooseVisual == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 (this->gl_data->glXCreateContext == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407 (this->gl_data->glXDestroyContext == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
408 (this->gl_data->glXMakeCurrent == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 (this->gl_data->glXSwapBuffers == NULL) ||
638
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
410 (this->gl_data->glXGetConfig == NULL) ||
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
411 (this->gl_data->glXQueryExtensionsString == NULL)) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412 SDL_SetError("Could not retrieve OpenGL functions");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413 return -1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416 this->gl_config.dll_handle = handle;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
417 this->gl_config.driver_loaded = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 if ( path ) {
1379
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
419 SDL_strlcpy(this->gl_config.driver_path, path,
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
420 SDL_arraysize(this->gl_config.driver_path));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
421 } else {
1379
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
422 *this->gl_config.driver_path = '\0';
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
423 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
424 return 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
425 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
427 void *X11_GL_GetProcAddress(_THIS, const char* proc)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
428 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
429 void* handle;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
430
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
431 handle = this->gl_config.dll_handle;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
432 if ( this->gl_data->glXGetProcAddress ) {
1196
b81f54c3963f Fixed compile warnings with gcc 4
Sam Lantinga <slouken@libsdl.org>
parents: 1191
diff changeset
433 return this->gl_data->glXGetProcAddress((const GLubyte *)proc);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
434 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
435 return SDL_LoadFunction(handle, proc);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
436 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
437
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
438 #endif /* SDL_VIDEO_OPENGL_GLX */