visualConfigs.c (12955B)
1 /* 2 * Copyright (c) 2007, 2008 Apple Inc. 3 * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved. 4 * Copyright (c) 2002 Greg Parker. All Rights Reserved. 5 * 6 * Portions of this file are copied from Mesa's xf86glx.c, 7 * which contains the following copyright: 8 * 9 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. 10 * All Rights Reserved. 11 * 12 * Permission is hereby granted, free of charge, to any person obtaining a 13 * copy of this software and associated documentation files (the "Software"), 14 * to deal in the Software without restriction, including without limitation 15 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 16 * and/or sell copies of the Software, and to permit persons to whom the 17 * Software is furnished to do so, subject to the following conditions: 18 * 19 * The above copyright notice and this permission notice shall be included in 20 * all copies or substantial portions of the Software. 21 * 22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 25 * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 26 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 27 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 28 * DEALINGS IN THE SOFTWARE. 29 */ 30 31 #ifdef HAVE_DIX_CONFIG_H 32 #include <dix-config.h> 33 #endif 34 35 #include "dri.h" 36 37 #include <OpenGL/OpenGL.h> 38 #include <OpenGL/gl.h> 39 #include <OpenGL/glext.h> 40 #include <OpenGL/CGLContext.h> 41 42 #include <GL/glxproto.h> 43 #include <windowstr.h> 44 #include <resource.h> 45 #include <GL/glxint.h> 46 #include <GL/glxtokens.h> 47 #include <scrnintstr.h> 48 #include <glxserver.h> 49 #include <glxscreens.h> 50 #include <glxdrawable.h> 51 #include <glxcontext.h> 52 #include <glxext.h> 53 #include <glxutil.h> 54 55 #include "capabilities.h" 56 #include "visualConfigs.h" 57 #include "darwinfb.h" 58 59 /* Based originally on code from indirect.c which was based on code from i830_dri.c. */ 60 __GLXconfig *__glXAquaCreateVisualConfigs(int *numConfigsPtr, int screenNumber) { 61 int numConfigs = 0; 62 __GLXconfig *visualConfigs, *c, *l; 63 struct glCapabilities caps; 64 struct glCapabilitiesConfig *conf; 65 int stereo, depth, aux, buffers, stencil, accum, color, msample; 66 67 if(getGlCapabilities(&caps)) { 68 ErrorF("error from getGlCapabilities()!\n"); 69 return NULL; 70 } 71 72 /* 73 conf->stereo is 0 or 1, but we need at least 1 iteration of the loop, 74 so we treat a true conf->stereo as 2. 75 76 The depth size is 0 or 24. Thus we do 2 iterations for that. 77 78 conf->aux_buffers (when available/non-zero) result in 2 iterations instead of 1. 79 80 conf->buffers indicates whether we have single or double buffering. 81 82 conf->total_stencil_bit_depths 83 84 conf->total_color_buffers indicates the RGB/RGBA color depths. 85 86 conf->total_accum_buffers iterations for accum (with at least 1 if equal to 0) 87 88 conf->total_depth_buffer_depths 89 90 conf->multisample_buffers iterations (with at least 1 if equal to 0). We add 1 91 for the 0 multisampling config. 92 93 */ 94 95 assert(NULL != caps.configurations); 96 97 numConfigs = 0; 98 99 for(conf = caps.configurations; conf; conf = conf->next) { 100 if(conf->total_color_buffers <= 0) 101 continue; 102 103 numConfigs += (conf->stereo ? 2 : 1) 104 * (conf->aux_buffers ? 2 : 1) 105 * conf->buffers 106 * ((conf->total_stencil_bit_depths > 0) ? conf->total_stencil_bit_depths : 1) 107 * conf->total_color_buffers 108 * ((conf->total_accum_buffers > 0) ? conf->total_accum_buffers : 1) 109 * conf->total_depth_buffer_depths 110 * (conf->multisample_buffers + 1); 111 } 112 113 if(numConfigsPtr) 114 *numConfigsPtr = numConfigs; 115 116 /* Note that as of 1.20.0, we cannot allocate all the configs at once. 117 * __glXScreenDestroy now walks all the fbconfigs and frees them one at a time. 118 * See 4b0a3cbab131eb453e2b3fc0337121969258a7be. 119 */ 120 visualConfigs = calloc(sizeof(*visualConfigs), 1); 121 122 l = NULL; 123 c = visualConfigs; /* current buffer */ 124 for(conf = caps.configurations; conf; conf = conf->next) { 125 for(stereo = 0; stereo < (conf->stereo ? 2 : 1); ++stereo) { 126 for(aux = 0; aux < (conf->aux_buffers ? 2 : 1); ++aux) { 127 for(buffers = 0; buffers < conf->buffers; ++buffers) { 128 for(stencil = 0; stencil < ((conf->total_stencil_bit_depths > 0) ? 129 conf->total_stencil_bit_depths : 1); ++stencil) { 130 for(color = 0; color < conf->total_color_buffers; ++color) { 131 for(accum = 0; accum < ((conf->total_accum_buffers > 0) ? 132 conf->total_accum_buffers : 1); ++accum) { 133 for(depth = 0; depth < conf->total_depth_buffer_depths; ++depth) { 134 for(msample = 0; msample < (conf->multisample_buffers + 1); ++msample) { 135 136 // Global 137 c->visualID = -1; 138 c->visualType = GLX_TRUE_COLOR; 139 c->next = calloc(sizeof(*visualConfigs), 1); 140 assert(c->next); 141 142 c->level = 0; 143 c->indexBits = 0; 144 145 if(conf->accelerated) { 146 c->visualRating = GLX_NONE; 147 } else { 148 c->visualRating = GLX_SLOW_VISUAL_EXT; 149 } 150 151 c->transparentPixel = GLX_NONE; 152 c->transparentRed = GLX_NONE; 153 c->transparentGreen = GLX_NONE; 154 c->transparentBlue = GLX_NONE; 155 c->transparentAlpha = GLX_NONE; 156 c->transparentIndex = GLX_NONE; 157 158 c->visualSelectGroup = 0; 159 160 c->swapMethod = GLX_SWAP_UNDEFINED_OML; 161 162 // Stereo 163 c->stereoMode = stereo ? TRUE : FALSE; 164 165 // Aux buffers 166 c->numAuxBuffers = aux ? conf->aux_buffers : 0; 167 168 // Double Buffered 169 c->doubleBufferMode = buffers ? TRUE : FALSE; 170 171 // Stencil Buffer 172 if(conf->total_stencil_bit_depths > 0) { 173 c->stencilBits = conf->stencil_bit_depths[stencil]; 174 } else { 175 c->stencilBits = 0; 176 } 177 178 // Color 179 if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->color_buffers[color].a) { 180 c->alphaBits = conf->color_buffers[color].a; 181 } else { 182 c->alphaBits = 0; 183 } 184 c->redBits = conf->color_buffers[color].r; 185 c->greenBits = conf->color_buffers[color].g; 186 c->blueBits = conf->color_buffers[color].b; 187 188 c->rgbBits = c->alphaBits + c->redBits + c->greenBits + c->blueBits; 189 190 c->alphaMask = AM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); 191 c->redMask = RM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); 192 c->greenMask = GM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); 193 c->blueMask = BM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); 194 195 // Accumulation Buffers 196 if(conf->total_accum_buffers > 0) { 197 c->accumRedBits = conf->accum_buffers[accum].r; 198 c->accumGreenBits = conf->accum_buffers[accum].g; 199 c->accumBlueBits = conf->accum_buffers[accum].b; 200 if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->accum_buffers[accum].a) { 201 c->accumAlphaBits = conf->accum_buffers[accum].a; 202 } else { 203 c->accumAlphaBits = 0; 204 } 205 } else { 206 c->accumRedBits = 0; 207 c->accumGreenBits = 0; 208 c->accumBlueBits = 0; 209 c->accumAlphaBits = 0; 210 } 211 212 // Depth 213 c->depthBits = conf->depth_buffers[depth]; 214 215 // MultiSample 216 if(msample > 0) { 217 c->samples = conf->multisample_samples; 218 c->sampleBuffers = conf->multisample_buffers; 219 } else { 220 c->samples = 0; 221 c->sampleBuffers = 0; 222 } 223 224 /* 225 * The Apple libGL supports GLXPixmaps and 226 * GLXPbuffers in direct mode. 227 */ 228 /* SGIX_fbconfig / GLX 1.3 */ 229 c->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT; 230 c->renderType = GLX_RGBA_BIT; 231 c->fbconfigID = -1; 232 233 /* SGIX_pbuffer / GLX 1.3 */ 234 235 /* 236 * The CGL layer provides a way of retrieving 237 * the maximum pbuffer width/height, but only 238 * if we create a context and call glGetIntegerv. 239 * 240 * The following values are from a test program 241 * that does so. 242 */ 243 c->maxPbufferWidth = 8192; 244 c->maxPbufferHeight = 8192; 245 c->maxPbufferPixels = /*Do we need this?*/ 0; 246 /* 247 * There is no introspection for this sort of thing 248 * with CGL. What should we do realistically? 249 */ 250 c->optimalPbufferWidth = 0; 251 c->optimalPbufferHeight = 0; 252 253 /* EXT_texture_from_pixmap */ 254 c->bindToTextureRgb = 0; 255 c->bindToTextureRgba = 0; 256 c->bindToMipmapTexture = 0; 257 c->bindToTextureTargets = 0; 258 c->yInverted = 0; 259 260 /* EXT_framebuffer_sRGB */ 261 c->sRGBCapable = GL_FALSE; 262 263 l = c; 264 c = c->next; 265 } 266 } 267 } 268 } 269 } 270 } 271 } 272 } 273 } 274 275 free(c); 276 l->next = NULL; 277 278 freeGlCapabilities(&caps); 279 return visualConfigs; 280 }