| 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 | #include <GL/internal/glcore.h> |
| 55 | |
| 56 | #include "capabilities.h" |
| 57 | #include "visualConfigs.h" |
| 58 | #include "darwinfb.h" |
| 59 | |
| 60 | /* Based originally on code from indirect.c which was based on code from i830_dri.c. */ |
| 61 | __GLXconfig *__glXAquaCreateVisualConfigs(int *numConfigsPtr, int screenNumber) { |
| 62 | int numConfigs = 0; |
| 63 | __GLXconfig *visualConfigs, *c; |
| 64 | struct glCapabilities caps; |
| 65 | struct glCapabilitiesConfig *conf; |
| 66 | int stereo, depth, aux, buffers, stencil, accum, color, msample; |
| 67 | |
| 68 | if(getGlCapabilities(&caps)) { |
| 69 | ErrorF("error from getGlCapabilities()!\n"); |
| 70 | return NULL; |
| 71 | } |
| 72 | |
| 73 | /* |
| 74 | conf->stereo is 0 or 1, but we need at least 1 iteration of the loop, |
| 75 | so we treat a true conf->stereo as 2. |
| 76 | |
| 77 | The depth size is 0 or 24. Thus we do 2 iterations for that. |
| 78 | |
| 79 | conf->aux_buffers (when available/non-zero) result in 2 iterations instead of 1. |
| 80 | |
| 81 | conf->buffers indicates whether we have single or double buffering. |
| 82 | |
| 83 | conf->total_stencil_bit_depths |
| 84 | |
| 85 | conf->total_color_buffers indicates the RGB/RGBA color depths. |
| 86 | |
| 87 | conf->total_accum_buffers iterations for accum (with at least 1 if equal to 0) |
| 88 | |
| 89 | conf->total_depth_buffer_depths |
| 90 | |
| 91 | conf->multisample_buffers iterations (with at least 1 if equal to 0). We add 1 |
| 92 | for the 0 multisampling config. |
| 93 | |
| 94 | */ |
| 95 | |
| 96 | assert(NULL != caps.configurations); |
| 97 | |
| 98 | numConfigs = 0; |
| 99 | |
| 100 | for(conf = caps.configurations; conf; conf = conf->next) { |
| 101 | if(conf->total_color_buffers <= 0) |
| 102 | continue; |
| 103 | |
| 104 | numConfigs += (conf->stereo ? 2 : 1) |
| 105 | * (conf->aux_buffers ? 2 : 1) |
| 106 | * conf->buffers |
| 107 | * ((conf->total_stencil_bit_depths > 0) ? conf->total_stencil_bit_depths : 1) |
| 108 | * conf->total_color_buffers |
| 109 | * ((conf->total_accum_buffers > 0) ? conf->total_accum_buffers : 1) |
| 110 | * conf->total_depth_buffer_depths |
| 111 | * (conf->multisample_buffers + 1); |
| 112 | } |
| 113 | |
| 114 | if(numConfigsPtr) |
| 115 | *numConfigsPtr = numConfigs; |
| 116 | |
| 117 | visualConfigs = calloc(sizeof(*visualConfigs), numConfigs); |
| 118 | |
| 119 | if(NULL == visualConfigs) { |
| 120 | ErrorF("xcalloc failure when allocating visualConfigs\n"); |
| 121 | freeGlCapabilities(&caps); |
| 122 | return NULL; |
| 123 | } |
| 124 | |
| 125 | c = visualConfigs; /* current buffer */ |
| 126 | for(conf = caps.configurations; conf; conf = conf->next) { |
| 127 | for(stereo = 0; stereo < (conf->stereo ? 2 : 1); ++stereo) { |
| 128 | for(aux = 0; aux < (conf->aux_buffers ? 2 : 1); ++aux) { |
| 129 | for(buffers = 0; buffers < conf->buffers; ++buffers) { |
| 130 | for(stencil = 0; stencil < ((conf->total_stencil_bit_depths > 0) ? |
| 131 | conf->total_stencil_bit_depths : 1); ++stencil) { |
| 132 | for(color = 0; color < conf->total_color_buffers; ++color) { |
| 133 | for(accum = 0; accum < ((conf->total_accum_buffers > 0) ? |
| 134 | conf->total_accum_buffers : 1); ++accum) { |
| 135 | for(depth = 0; depth < conf->total_depth_buffer_depths; ++depth) { |
| 136 | for(msample = 0; msample < (conf->multisample_buffers + 1); ++msample) { |
| 137 | |
| 138 | // Global |
| 139 | c->visualID = -1; |
| 140 | c->visualType = GLX_TRUE_COLOR; |
| 141 | c->next = c + 1; |
| 142 | |
| 143 | c->level = 0; |
| 144 | c->indexBits = 0; |
| 145 | |
| 146 | if(conf->accelerated) { |
| 147 | c->visualRating = GLX_NONE; |
| 148 | } else { |
| 149 | c->visualRating = GLX_SLOW_VISUAL_EXT; |
| 150 | } |
| 151 | |
| 152 | c->transparentPixel = GLX_NONE; |
| 153 | c->transparentRed = GLX_NONE; |
| 154 | c->transparentGreen = GLX_NONE; |
| 155 | c->transparentBlue = GLX_NONE; |
| 156 | c->transparentAlpha = GLX_NONE; |
| 157 | c->transparentIndex = GLX_NONE; |
| 158 | |
| 159 | c->visualSelectGroup = 0; |
| 160 | |
| 161 | c->swapMethod = GLX_SWAP_UNDEFINED_OML; |
| 162 | |
| 163 | // Stereo |
| 164 | c->stereoMode = stereo ? TRUE : FALSE; |
| 165 | |
| 166 | // Aux buffers |
| 167 | c->numAuxBuffers = aux ? conf->aux_buffers : 0; |
| 168 | |
| 169 | // Double Buffered |
| 170 | c->doubleBufferMode = buffers ? TRUE : FALSE; |
| 171 | |
| 172 | // Stencil Buffer |
| 173 | if(conf->total_stencil_bit_depths > 0) { |
| 174 | c->stencilBits = conf->stencil_bit_depths[stencil]; |
| 175 | } else { |
| 176 | c->stencilBits = 0; |
| 177 | } |
| 178 | |
| 179 | // Color |
| 180 | if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->color_buffers[color].a) { |
| 181 | c->alphaBits = conf->color_buffers[color].a; |
| 182 | } else { |
| 183 | c->alphaBits = 0; |
| 184 | } |
| 185 | c->redBits = conf->color_buffers[color].r; |
| 186 | c->greenBits = conf->color_buffers[color].g; |
| 187 | c->blueBits = conf->color_buffers[color].b; |
| 188 | |
| 189 | c->rgbBits = c->alphaBits + c->redBits + c->greenBits + c->blueBits; |
| 190 | |
| 191 | c->alphaMask = AM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); |
| 192 | c->redMask = RM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); |
| 193 | c->greenMask = GM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); |
| 194 | c->blueMask = BM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); |
| 195 | |
| 196 | // Accumulation Buffers |
| 197 | if(conf->total_accum_buffers > 0) { |
| 198 | c->accumRedBits = conf->accum_buffers[accum].r; |
| 199 | c->accumGreenBits = conf->accum_buffers[accum].g; |
| 200 | c->accumBlueBits = conf->accum_buffers[accum].b; |
| 201 | if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->accum_buffers[accum].a) { |
| 202 | c->accumAlphaBits = conf->accum_buffers[accum].a; |
| 203 | } else { |
| 204 | c->accumAlphaBits = 0; |
| 205 | } |
| 206 | } else { |
| 207 | c->accumRedBits = 0; |
| 208 | c->accumGreenBits = 0; |
| 209 | c->accumBlueBits = 0; |
| 210 | c->accumAlphaBits = 0; |
| 211 | } |
| 212 | |
| 213 | // Depth |
| 214 | c->depthBits = conf->depth_buffers[depth]; |
| 215 | |
| 216 | // MultiSample |
| 217 | if(msample > 0) { |
| 218 | c->samples = conf->multisample_samples; |
| 219 | c->sampleBuffers = conf->multisample_buffers; |
| 220 | } else { |
| 221 | c->samples = 0; |
| 222 | c->sampleBuffers = 0; |
| 223 | } |
| 224 | |
| 225 | /* |
| 226 | * The Apple libGL supports GLXPixmaps and |
| 227 | * GLXPbuffers in direct mode. |
| 228 | */ |
| 229 | /* SGIX_fbconfig / GLX 1.3 */ |
| 230 | c->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT; |
| 231 | c->renderType = GLX_RGBA_BIT; |
| 232 | c->xRenderable = GL_TRUE; |
| 233 | c->fbconfigID = -1; |
| 234 | |
| 235 | /* SGIX_pbuffer / GLX 1.3 */ |
| 236 | |
| 237 | /* |
| 238 | * The CGL layer provides a way of retrieving |
| 239 | * the maximum pbuffer width/height, but only |
| 240 | * if we create a context and call glGetIntegerv. |
| 241 | * |
| 242 | * The following values are from a test program |
| 243 | * that does so. |
| 244 | */ |
| 245 | c->maxPbufferWidth = 8192; |
| 246 | c->maxPbufferHeight = 8192; |
| 247 | c->maxPbufferPixels = /*Do we need this?*/ 0; |
| 248 | /* |
| 249 | * There is no introspection for this sort of thing |
| 250 | * with CGL. What should we do realistically? |
| 251 | */ |
| 252 | c->optimalPbufferWidth = 0; |
| 253 | c->optimalPbufferHeight = 0; |
| 254 | |
| 255 | /* EXT_texture_from_pixmap */ |
| 256 | c->bindToTextureRgb = 0; |
| 257 | c->bindToTextureRgba = 0; |
| 258 | c->bindToMipmapTexture = 0; |
| 259 | c->bindToTextureTargets = 0; |
| 260 | c->yInverted = 0; |
| 261 | |
| 262 | /* EXT_framebuffer_sRGB */ |
| 263 | c->sRGBCapable = GL_FALSE; |
| 264 | |
| 265 | c = c->next; |
| 266 | } |
| 267 | } |
| 268 | } |
| 269 | } |
| 270 | } |
| 271 | } |
| 272 | } |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | (c-1)->next = NULL; |
| 277 | |
| 278 | if (c - visualConfigs != numConfigs) { |
| 279 | FatalError("numConfigs calculation error in setVisualConfigs! numConfigs is %d i is %d\n", numConfigs, (int)(c - visualConfigs)); |
| 280 | } |
| 281 | |
| 282 | freeGlCapabilities(&caps); |
| 283 | return visualConfigs; |
| 284 | } |