annotate src/video/x11/SDL_x11gl.c @ 1246:ca51a76a7328

Make error message meaningful if dlopen() fails on libX11.
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 13 Jan 2006 02:32:07 +0000
parents b81f54c3963f
children ff73ee89ff4b
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #include <stdlib.h> /* For getenv() prototype */
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29 #include <string.h>
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30
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31 #include "SDL_events_c.h"
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32 #include "SDL_error.h"
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33 #include "SDL_x11video.h"
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34 #include "SDL_x11dga_c.h"
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35 #include "SDL_x11gl_c.h"
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36
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37 #if defined(sgi)
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38 /* IRIX doesn't have a GL library versioning system */
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39 #define DEFAULT_OPENGL "libGL.so"
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40 #elif defined(MACOSX)
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41 #define DEFAULT_OPENGL "/usr/X11R6/lib/libGL.1.dylib"
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42 #else
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43 #define DEFAULT_OPENGL "libGL.so.1"
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44 #endif
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45
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46 #ifndef GLX_ARB_multisample
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47 #define GLX_ARB_multisample
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48 #define GLX_SAMPLE_BUFFERS_ARB 100000
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49 #define GLX_SAMPLES_ARB 100001
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50 #endif
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51
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52 /* return the preferred visual to use for openGL graphics */
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53 XVisualInfo *X11_GL_GetVisual(_THIS)
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54 {
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55 #ifdef HAVE_OPENGL_X11
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56 /* 64 seems nice. */
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57 int attribs[64];
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58 int i;
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59
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60 /* load the gl driver from a default path */
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61 if ( ! this->gl_config.driver_loaded ) {
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62 /* no driver has been loaded, use default (ourselves) */
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63 if ( X11_GL_LoadLibrary(this, NULL) < 0 ) {
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64 return NULL;
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65 }
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66 }
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67
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68 /* See if we already have a window which we must use */
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69 if ( SDL_windowid ) {
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70 XWindowAttributes a;
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71 XVisualInfo vi_in;
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72 int out_count;
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73
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74 pXGetWindowAttributes(SDL_Display, SDL_Window, &a);
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75 vi_in.screen = SDL_Screen;
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76 vi_in.visualid = pXVisualIDFromVisual(a.visual);
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77 glx_visualinfo = pXGetVisualInfo(SDL_Display,
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78 VisualScreenMask|VisualIDMask, &vi_in, &out_count);
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79 return glx_visualinfo;
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80 }
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81
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82 /* Setup our GLX attributes according to the gl_config. */
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83 i = 0;
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84 attribs[i++] = GLX_RGBA;
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85 attribs[i++] = GLX_RED_SIZE;
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86 attribs[i++] = this->gl_config.red_size;
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87 attribs[i++] = GLX_GREEN_SIZE;
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88 attribs[i++] = this->gl_config.green_size;
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89 attribs[i++] = GLX_BLUE_SIZE;
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90 attribs[i++] = this->gl_config.blue_size;
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91
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92 if( this->gl_config.alpha_size ) {
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93 attribs[i++] = GLX_ALPHA_SIZE;
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94 attribs[i++] = this->gl_config.alpha_size;
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95 }
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96
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97 if( this->gl_config.buffer_size ) {
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98 attribs[i++] = GLX_BUFFER_SIZE;
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99 attribs[i++] = this->gl_config.buffer_size;
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100 }
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101
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102 if( this->gl_config.double_buffer ) {
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103 attribs[i++] = GLX_DOUBLEBUFFER;
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104 }
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105
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106 attribs[i++] = GLX_DEPTH_SIZE;
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107 attribs[i++] = this->gl_config.depth_size;
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108
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109 if( this->gl_config.stencil_size ) {
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110 attribs[i++] = GLX_STENCIL_SIZE;
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111 attribs[i++] = this->gl_config.stencil_size;
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112 }
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113
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114 if( this->gl_config.accum_red_size ) {
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115 attribs[i++] = GLX_ACCUM_RED_SIZE;
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116 attribs[i++] = this->gl_config.accum_red_size;
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117 }
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118
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119 if( this->gl_config.accum_green_size ) {
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120 attribs[i++] = GLX_ACCUM_GREEN_SIZE;
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121 attribs[i++] = this->gl_config.accum_green_size;
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122 }
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123
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124 if( this->gl_config.accum_blue_size ) {
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125 attribs[i++] = GLX_ACCUM_BLUE_SIZE;
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126 attribs[i++] = this->gl_config.accum_blue_size;
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127 }
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128
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129 if( this->gl_config.accum_alpha_size ) {
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130 attribs[i++] = GLX_ACCUM_ALPHA_SIZE;
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131 attribs[i++] = this->gl_config.accum_alpha_size;
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132 }
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133
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134 if( this->gl_config.stereo ) {
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135 attribs[i++] = GLX_STEREO;
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136 attribs[i++] = this->gl_config.stereo;
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137 }
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138
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139 if( this->gl_config.multisamplebuffers ) {
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140 attribs[i++] = GLX_SAMPLE_BUFFERS_ARB;
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141 attribs[i++] = this->gl_config.multisamplebuffers;
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142 }
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143
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144 if( this->gl_config.multisamplesamples ) {
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145 attribs[i++] = GLX_SAMPLES_ARB;
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146 attribs[i++] = this->gl_config.multisamplesamples;
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147 }
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148
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149 #ifdef GLX_DIRECT_COLOR /* Try for a DirectColor visual for gamma support */
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150 if ( !getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) {
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151 attribs[i++] = GLX_X_VISUAL_TYPE;
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152 attribs[i++] = GLX_DIRECT_COLOR;
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153 }
0
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154 #endif
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155 attribs[i++] = None;
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156
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157 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display,
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158 SDL_Screen, attribs);
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159 #ifdef GLX_DIRECT_COLOR
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160 if( !glx_visualinfo && !getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { /* No DirectColor visual? Try again.. */
0
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161 attribs[i-3] = None;
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162 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display,
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163 SDL_Screen, attribs);
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164 }
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165 #endif
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166 if( !glx_visualinfo ) {
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167 SDL_SetError( "Couldn't find matching GLX visual");
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168 return NULL;
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169 }
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170 return glx_visualinfo;
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171 #else
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172 SDL_SetError("X11 driver not configured with OpenGL");
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173 return NULL;
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174 #endif
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175 }
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176
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177 int X11_GL_CreateWindow(_THIS, int w, int h)
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178 {
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179 int retval;
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180 #ifdef HAVE_OPENGL_X11
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181 XSetWindowAttributes attributes;
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182 unsigned long mask;
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183 unsigned long black;
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184
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185 black = (glx_visualinfo->visual == DefaultVisual(SDL_Display,
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186 SDL_Screen))
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187 ? BlackPixel(SDL_Display, SDL_Screen) : 0;
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188 attributes.background_pixel = black;
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189 attributes.border_pixel = black;
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190 attributes.colormap = SDL_XColorMap;
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191 mask = CWBackPixel | CWBorderPixel | CWColormap;
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192
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193 SDL_Window = pXCreateWindow(SDL_Display, WMwindow,
0
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194 0, 0, w, h, 0, glx_visualinfo->depth,
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195 InputOutput, glx_visualinfo->visual,
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196 mask, &attributes);
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197 if ( !SDL_Window ) {
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198 SDL_SetError("Could not create window");
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199 return -1;
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200 }
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201 retval = 0;
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202 #else
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203 SDL_SetError("X11 driver not configured with OpenGL");
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204 retval = -1;
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205 #endif
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206 return(retval);
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207 }
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208
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209 int X11_GL_CreateContext(_THIS)
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210 {
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211 int retval;
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212 #ifdef HAVE_OPENGL_X11
0
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213 /* We do this to create a clean separation between X and GLX errors. */
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214 pXSync( SDL_Display, False );
0
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215 glx_context = this->gl_data->glXCreateContext(GFX_Display,
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216 glx_visualinfo, NULL, True);
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217 pXSync( GFX_Display, False );
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218
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219 if (glx_context == NULL) {
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220 SDL_SetError("Could not create GL context");
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221 return -1;
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222 }
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223
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224 gl_active = 1;
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225 #else
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226 SDL_SetError("X11 driver not configured with OpenGL");
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227 #endif
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228 if ( gl_active ) {
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229 retval = 0;
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230 } else {
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231 retval = -1;
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232 }
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233 return(retval);
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234 }
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235
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236 void X11_GL_Shutdown(_THIS)
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237 {
1191
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238 #ifdef HAVE_OPENGL_X11
0
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239 /* Clean up OpenGL */
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240 if( glx_context ) {
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241 this->gl_data->glXMakeCurrent(GFX_Display, None, NULL);
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242
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243 if (glx_context != NULL)
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244 this->gl_data->glXDestroyContext(GFX_Display, glx_context);
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245
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246 if( this->gl_data->glXReleaseBuffersMESA ) {
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247 this->gl_data->glXReleaseBuffersMESA(GFX_Display,SDL_Window);
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248 }
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249 glx_context = NULL;
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250 }
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251 gl_active = 0;
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252 #endif /* HAVE_OPENGL_X11 */
0
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253 }
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254
1191
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255 #ifdef HAVE_OPENGL_X11
0
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256
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff changeset
257 static int ExtensionSupported(const char *extension)
638
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diff changeset
258 {
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diff changeset
259 const GLubyte *extensions = NULL;
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260 const GLubyte *start;
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261 GLubyte *where, *terminator;
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262
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263 /* Extension names should not have spaces. */
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diff changeset
264 where = (GLubyte *) strchr(extension, ' ');
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diff changeset
265 if (where || *extension == '\0')
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diff changeset
266 return 0;
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diff changeset
267
643
564716cfb502 Removed direct dependency on OpenGL (call current_video->glGetString() instead
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diff changeset
268 extensions = current_video->glGetString(GL_EXTENSIONS);
638
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diff changeset
269 /* It takes a bit of care to be fool-proof about parsing the
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270 * OpenGL extensions string. Don't be fooled by sub-strings,
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diff changeset
271 * etc. */
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diff changeset
272
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diff changeset
273 start = extensions;
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diff changeset
274
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diff changeset
275 for (;;)
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diff changeset
276 {
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277 where = (GLubyte *) strstr((const char *) start, extension);
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diff changeset
278 if (!where) break;
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diff changeset
279
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280 terminator = where + strlen(extension);
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diff changeset
281 if (where == start || *(where - 1) == ' ')
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diff changeset
282 if (*terminator == ' ' || *terminator == '\0') return 1;
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diff changeset
283
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diff changeset
284 start = terminator;
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diff changeset
285 }
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diff changeset
286
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diff changeset
287 return 0;
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diff changeset
288 }
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diff changeset
289
0
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diff changeset
290 /* Make the current context active */
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diff changeset
291 int X11_GL_MakeCurrent(_THIS)
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diff changeset
292 {
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diff changeset
293 int retval;
638
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diff changeset
294
0
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295 retval = 0;
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diff changeset
296 if ( ! this->gl_data->glXMakeCurrent(GFX_Display,
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diff changeset
297 SDL_Window, glx_context) ) {
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diff changeset
298 SDL_SetError("Unable to make GL context current");
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diff changeset
299 retval = -1;
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diff changeset
300 }
1168
045f186426e1 Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
301 pXSync( GFX_Display, False );
0
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302
638
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diff changeset
303 /*
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diff changeset
304 * The context is now current, check for glXReleaseBuffersMESA()
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
305 * extension. If extension is _not_ supported, destroy the pointer
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
306 * (to make sure it will not be called in X11_GL_Shutdown() ).
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
307 *
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
308 * DRI/Mesa drivers include glXReleaseBuffersMESA() in the libGL.so,
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
309 * but there's no need to call it (is is only needed for some old
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
310 * non-DRI drivers).
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
311 *
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
312 * When using for example glew (http://glew.sf.net), dlsym() for
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
313 * glXReleaseBuffersMESA() returns the pointer from the glew library
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
314 * (namespace conflict).
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
315 *
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
316 * The glXReleaseBuffersMESA() pointer in the glew is NULL, if the
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
317 * driver doesn't support this extension. So blindly calling it will
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
318 * cause segfault with DRI/Mesa drivers!
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
319 *
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
320 */
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
321
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
322 if ( ! ExtensionSupported("glXReleaseBuffersMESA") ) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
323 this->gl_data->glXReleaseBuffersMESA = NULL;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
324 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
325
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
326 /* More Voodoo X server workarounds... Grr... */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
327 SDL_Lock_EventThread();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
328 X11_CheckDGAMouse(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
329 SDL_Unlock_EventThread();
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
330
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
331 return(retval);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
332 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
334 /* Get attribute data from glX. */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
335 int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337 int retval;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
338 int glx_attrib = None;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
339
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
340 switch( attrib ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
341 case SDL_GL_RED_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
342 glx_attrib = GLX_RED_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
343 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
344 case SDL_GL_GREEN_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
345 glx_attrib = GLX_GREEN_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
347 case SDL_GL_BLUE_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
348 glx_attrib = GLX_BLUE_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
350 case SDL_GL_ALPHA_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
351 glx_attrib = GLX_ALPHA_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
352 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
353 case SDL_GL_DOUBLEBUFFER:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354 glx_attrib = GLX_DOUBLEBUFFER;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
355 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
356 case SDL_GL_BUFFER_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
357 glx_attrib = GLX_BUFFER_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
358 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
359 case SDL_GL_DEPTH_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
360 glx_attrib = GLX_DEPTH_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
361 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
362 case SDL_GL_STENCIL_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
363 glx_attrib = GLX_STENCIL_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
364 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
365 case SDL_GL_ACCUM_RED_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
366 glx_attrib = GLX_ACCUM_RED_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
367 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
368 case SDL_GL_ACCUM_GREEN_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 glx_attrib = GLX_ACCUM_GREEN_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
370 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
371 case SDL_GL_ACCUM_BLUE_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372 glx_attrib = GLX_ACCUM_BLUE_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
373 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
374 case SDL_GL_ACCUM_ALPHA_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
375 glx_attrib = GLX_ACCUM_ALPHA_SIZE;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376 break;
450
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
377 case SDL_GL_STEREO:
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
378 glx_attrib = GLX_STEREO;
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
379 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
380 case SDL_GL_MULTISAMPLEBUFFERS:
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
381 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
382 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
383 case SDL_GL_MULTISAMPLESAMPLES:
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
384 glx_attrib = GLX_SAMPLES_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 646
diff changeset
385 break;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
387 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
388 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
389
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392 return retval;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395 void X11_GL_SwapBuffers(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 this->gl_data->glXSwapBuffers(GFX_Display, SDL_Window);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399
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
400 #endif /* HAVE_OPENGL_X11 */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 void X11_GL_UnloadLibrary(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403 {
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
404 #ifdef HAVE_OPENGL_X11
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 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
406
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
407 /* !!! FIXME: Can we just use SDL_UnloadObject() everywhere? */
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
408 #ifdef USE_DLOPEN
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 dlclose(this->gl_config.dll_handle);
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
410 #else
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
411 SDL_UnloadObject(this->gl_config.dll_handle);
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
412 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414 this->gl_data->glXGetProcAddress = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415 this->gl_data->glXChooseVisual = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416 this->gl_data->glXCreateContext = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
417 this->gl_data->glXDestroyContext = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 this->gl_data->glXMakeCurrent = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419 this->gl_data->glXSwapBuffers = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
421 this->gl_config.dll_handle = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
422 this->gl_config.driver_loaded = 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 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
425 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426
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
427 #ifdef HAVE_OPENGL_X11
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
428
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
429 static void *do_dlsym(void *handle, const char *name)
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
430 {
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
431 /* !!! FIXME: Can we just use SDL_LoadFunction() everywhere? */
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
432 #ifdef USE_DLOPEN
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
433 return dlsym(handle, name);
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
434 #else
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
435 return SDL_LoadFunction(handle, name);
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
436 #endif
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
437 }
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
438
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
439 #if defined(__OpenBSD__) && !defined(__ELF__)
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
440 #define do_dlsym(x,y) do_dlsym(x, "_" y)
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
441 #endif
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
442
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
443 /* Passing a NULL path means load pointers from the application */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
444 int X11_GL_LoadLibrary(_THIS, const char* path)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445 {
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
446 void* handle = NULL;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
447
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
448 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
449 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
450 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
451 }
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
452
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
453 if ( path == NULL ) {
0
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parents:
diff changeset
454 path = getenv("SDL_VIDEO_GL_DRIVER");
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parents:
diff changeset
455 if ( path == NULL ) {
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diff changeset
456 path = DEFAULT_OPENGL;
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parents:
diff changeset
457 }
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
458 }
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
459
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
460 /* !!! FIXME: Can we just use SDL_LoadObject() everywhere? */
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
461 #ifdef USE_DLOPEN
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
462 {
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
463 #ifdef RTLD_GLOBAL
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
464 int dlopen_flags = RTLD_LAZY | RTLD_GLOBAL;
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
465 #else
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
466 int dlopen_flags = RTLD_LAZY;
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
467 #endif
0
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parents:
diff changeset
468 handle = dlopen(path, dlopen_flags);
1246
ca51a76a7328 Make error message meaningful if dlopen() fails on libX11.
Ryan C. Gordon <icculus@icculus.org>
parents: 1196
diff changeset
469 if ( handle == NULL ) {
ca51a76a7328 Make error message meaningful if dlopen() fails on libX11.
Ryan C. Gordon <icculus@icculus.org>
parents: 1196
diff changeset
470 SDL_SetError("Could not load OpenGL library: %s", (const char *) dlerror());
ca51a76a7328 Make error message meaningful if dlopen() fails on libX11.
Ryan C. Gordon <icculus@icculus.org>
parents: 1196
diff changeset
471 return -1;
ca51a76a7328 Make error message meaningful if dlopen() fails on libX11.
Ryan C. Gordon <icculus@icculus.org>
parents: 1196
diff changeset
472 }
0
74212992fb08 Initial revision
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parents:
diff changeset
473 }
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
474 #else
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
475 handle = SDL_LoadObject(path);
1246
ca51a76a7328 Make error message meaningful if dlopen() fails on libX11.
Ryan C. Gordon <icculus@icculus.org>
parents: 1196
diff changeset
476 if ( handle == NULL ) {
ca51a76a7328 Make error message meaningful if dlopen() fails on libX11.
Ryan C. Gordon <icculus@icculus.org>
parents: 1196
diff changeset
477 SDL_SetError("Could not load OpenGL library");
ca51a76a7328 Make error message meaningful if dlopen() fails on libX11.
Ryan C. Gordon <icculus@icculus.org>
parents: 1196
diff changeset
478 return -1;
ca51a76a7328 Make error message meaningful if dlopen() fails on libX11.
Ryan C. Gordon <icculus@icculus.org>
parents: 1196
diff changeset
479 }
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
480 #endif
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
481
0
74212992fb08 Initial revision
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parents:
diff changeset
482
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parents:
diff changeset
483 /* Unload the old driver and reset the pointers */
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parents:
diff changeset
484 X11_GL_UnloadLibrary(this);
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parents:
diff changeset
485
74212992fb08 Initial revision
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parents:
diff changeset
486 /* Load new function pointers */
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
487 this->gl_data->glXGetProcAddress =
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
488 (void *(*)(const GLubyte *)) do_dlsym(handle, "glXGetProcAddressARB");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
489 this->gl_data->glXChooseVisual =
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
490 (XVisualInfo *(*)(Display *, int, int *)) do_dlsym(handle, "glXChooseVisual");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
491 this->gl_data->glXCreateContext =
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
492 (GLXContext (*)(Display *, XVisualInfo *, GLXContext, int)) do_dlsym(handle, "glXCreateContext");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
493 this->gl_data->glXDestroyContext =
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
494 (void (*)(Display *, GLXContext)) do_dlsym(handle, "glXDestroyContext");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
495 this->gl_data->glXMakeCurrent =
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
496 (int (*)(Display *, GLXDrawable, GLXContext)) do_dlsym(handle, "glXMakeCurrent");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
497 this->gl_data->glXSwapBuffers =
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
498 (void (*)(Display *, GLXDrawable)) do_dlsym(handle, "glXSwapBuffers");
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
499 this->gl_data->glXGetConfig =
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
500 (int (*)(Display *, XVisualInfo *, int, int *)) do_dlsym(handle, "glXGetConfig");
638
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
501 this->gl_data->glXQueryExtensionsString =
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
502 (const char *(*)(Display *, int)) do_dlsym(handle, "glXQueryExtensionsString");
638
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
503
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
504 /* We don't compare below for this in case we're not using Mesa. */
180
578815880307 Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
parents: 127
diff changeset
505 this->gl_data->glXReleaseBuffersMESA =
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
506 (void (*)(Display *, GLXDrawable)) do_dlsym( handle, "glXReleaseBuffersMESA" );
638
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
507
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
508
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
509 if ( (this->gl_data->glXChooseVisual == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
510 (this->gl_data->glXCreateContext == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
511 (this->gl_data->glXDestroyContext == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
512 (this->gl_data->glXMakeCurrent == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
513 (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
514 (this->gl_data->glXGetConfig == NULL) ||
b0108e9dea53 Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 566
diff changeset
515 (this->gl_data->glXQueryExtensionsString == NULL)) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
516 SDL_SetError("Could not retrieve OpenGL functions");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
517 return -1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
519
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520 this->gl_config.dll_handle = handle;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521 this->gl_config.driver_loaded = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 if ( path ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523 strncpy(this->gl_config.driver_path, path,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524 sizeof(this->gl_config.driver_path)-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
526 strcpy(this->gl_config.driver_path, "");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
527 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528 return 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
529 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
530
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
531 void *X11_GL_GetProcAddress(_THIS, const char* proc)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
532 {
110
7edee9f0f2cc SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents: 29
diff changeset
533 static char procname[1024];
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
534 void* handle;
110
7edee9f0f2cc SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents: 29
diff changeset
535 void* retval;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
536
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
537 handle = this->gl_config.dll_handle;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
538 if ( this->gl_data->glXGetProcAddress ) {
1196
b81f54c3963f Fixed compile warnings with gcc 4
Sam Lantinga <slouken@libsdl.org>
parents: 1191
diff changeset
539 return this->gl_data->glXGetProcAddress((const GLubyte *)proc);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
540 }
110
7edee9f0f2cc SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents: 29
diff changeset
541 #if defined(__OpenBSD__) && !defined(__ELF__)
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
542 #undef do_dlsym
110
7edee9f0f2cc SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents: 29
diff changeset
543 #endif
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
544 retval = do_dlsym(handle, proc);
110
7edee9f0f2cc SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents: 29
diff changeset
545 if (!retval && strlen(proc) <= 1022) {
127
0bcae11eba14 Oops, that wasn't right...
Sam Lantinga <slouken@libsdl.org>
parents: 110
diff changeset
546 procname[0] = '_';
110
7edee9f0f2cc SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents: 29
diff changeset
547 strcpy(procname + 1, proc);
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
548 retval = do_dlsym(handle, procname);
110
7edee9f0f2cc SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents: 29
diff changeset
549 }
7edee9f0f2cc SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents: 29
diff changeset
550 return retval;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
551 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
552
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
553 #endif /* HAVE_OPENGL_X11 */