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IABSD.fr/xenocara/xserver/hw/xquartz/GL/visualConfigs.c
matthieu
- xserver/hw/xquartz/GL/visualConfigs.c
-
/* * Copyright (c) 2007, 2008 Apple Inc. * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved. * Copyright (c) 2002 Greg Parker. All Rights Reserved. * * Portions of this file are copied from Mesa's xf86glx.c, * which contains the following copyright: * * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include "dri.h" #include <OpenGL/OpenGL.h> #include <OpenGL/gl.h> #include <OpenGL/glext.h> #include <OpenGL/CGLContext.h> #include <GL/glxproto.h> #include <windowstr.h> #include <resource.h> #include <GL/glxint.h> #include <GL/glxtokens.h> #include <scrnintstr.h> #include <glxserver.h> #include <glxscreens.h> #include <glxdrawable.h> #include <glxcontext.h> #include <glxext.h> #include <glxutil.h> #include "capabilities.h" #include "visualConfigs.h" #include "darwinfb.h" /* Based originally on code from indirect.c which was based on code from i830_dri.c. */ __GLXconfig *__glXAquaCreateVisualConfigs(int *numConfigsPtr, int screenNumber) { int numConfigs = 0; __GLXconfig *visualConfigs, *c, *l; struct glCapabilities caps; struct glCapabilitiesConfig *conf; int stereo, depth, aux, buffers, stencil, accum, color, msample; if(getGlCapabilities(&caps)) { ErrorF("error from getGlCapabilities()!\n"); return NULL; } /* conf->stereo is 0 or 1, but we need at least 1 iteration of the loop, so we treat a true conf->stereo as 2. The depth size is 0 or 24. Thus we do 2 iterations for that. conf->aux_buffers (when available/non-zero) result in 2 iterations instead of 1. conf->buffers indicates whether we have single or double buffering. conf->total_stencil_bit_depths conf->total_color_buffers indicates the RGB/RGBA color depths. conf->total_accum_buffers iterations for accum (with at least 1 if equal to 0) conf->total_depth_buffer_depths conf->multisample_buffers iterations (with at least 1 if equal to 0). We add 1 for the 0 multisampling config. */ assert(NULL != caps.configurations); numConfigs = 0; for(conf = caps.configurations; conf; conf = conf->next) { if(conf->total_color_buffers <= 0) continue; numConfigs += (conf->stereo ? 2 : 1) * (conf->aux_buffers ? 2 : 1) * conf->buffers * ((conf->total_stencil_bit_depths > 0) ? conf->total_stencil_bit_depths : 1) * conf->total_color_buffers * ((conf->total_accum_buffers > 0) ? conf->total_accum_buffers : 1) * conf->total_depth_buffer_depths * (conf->multisample_buffers + 1); } if(numConfigsPtr) *numConfigsPtr = numConfigs; /* Note that as of 1.20.0, we cannot allocate all the configs at once. * __glXScreenDestroy now walks all the fbconfigs and frees them one at a time. * See 4b0a3cbab131eb453e2b3fc0337121969258a7be. */ visualConfigs = calloc(sizeof(*visualConfigs), 1); l = NULL; c = visualConfigs; /* current buffer */ for(conf = caps.configurations; conf; conf = conf->next) { for(stereo = 0; stereo < (conf->stereo ? 2 : 1); ++stereo) { for(aux = 0; aux < (conf->aux_buffers ? 2 : 1); ++aux) { for(buffers = 0; buffers < conf->buffers; ++buffers) { for(stencil = 0; stencil < ((conf->total_stencil_bit_depths > 0) ? conf->total_stencil_bit_depths : 1); ++stencil) { for(color = 0; color < conf->total_color_buffers; ++color) { for(accum = 0; accum < ((conf->total_accum_buffers > 0) ? conf->total_accum_buffers : 1); ++accum) { for(depth = 0; depth < conf->total_depth_buffer_depths; ++depth) { for(msample = 0; msample < (conf->multisample_buffers + 1); ++msample) { // Global c->visualID = -1; c->visualType = GLX_TRUE_COLOR; c->next = calloc(sizeof(*visualConfigs), 1); assert(c->next); c->level = 0; c->indexBits = 0; if(conf->accelerated) { c->visualRating = GLX_NONE; } else { c->visualRating = GLX_SLOW_VISUAL_EXT; } c->transparentPixel = GLX_NONE; c->transparentRed = GLX_NONE; c->transparentGreen = GLX_NONE; c->transparentBlue = GLX_NONE; c->transparentAlpha = GLX_NONE; c->transparentIndex = GLX_NONE; c->visualSelectGroup = 0; c->swapMethod = GLX_SWAP_UNDEFINED_OML; // Stereo c->stereoMode = stereo ? TRUE : FALSE; // Aux buffers c->numAuxBuffers = aux ? conf->aux_buffers : 0; // Double Buffered c->doubleBufferMode = buffers ? TRUE : FALSE; // Stencil Buffer if(conf->total_stencil_bit_depths > 0) { c->stencilBits = conf->stencil_bit_depths[stencil]; } else { c->stencilBits = 0; } // Color if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->color_buffers[color].a) { c->alphaBits = conf->color_buffers[color].a; } else { c->alphaBits = 0; } c->redBits = conf->color_buffers[color].r; c->greenBits = conf->color_buffers[color].g; c->blueBits = conf->color_buffers[color].b; c->rgbBits = c->alphaBits + c->redBits + c->greenBits + c->blueBits; c->alphaMask = AM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); c->redMask = RM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); c->greenMask = GM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); c->blueMask = BM_ARGB(c->alphaBits, c->redBits, c->greenBits, c->blueBits); // Accumulation Buffers if(conf->total_accum_buffers > 0) { c->accumRedBits = conf->accum_buffers[accum].r; c->accumGreenBits = conf->accum_buffers[accum].g; c->accumBlueBits = conf->accum_buffers[accum].b; if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->accum_buffers[accum].a) { c->accumAlphaBits = conf->accum_buffers[accum].a; } else { c->accumAlphaBits = 0; } } else { c->accumRedBits = 0; c->accumGreenBits = 0; c->accumBlueBits = 0; c->accumAlphaBits = 0; } // Depth c->depthBits = conf->depth_buffers[depth]; // MultiSample if(msample > 0) { c->samples = conf->multisample_samples; c->sampleBuffers = conf->multisample_buffers; } else { c->samples = 0; c->sampleBuffers = 0; } /* * The Apple libGL supports GLXPixmaps and * GLXPbuffers in direct mode. */ /* SGIX_fbconfig / GLX 1.3 */ c->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT; c->renderType = GLX_RGBA_BIT; c->fbconfigID = -1; /* SGIX_pbuffer / GLX 1.3 */ /* * The CGL layer provides a way of retrieving * the maximum pbuffer width/height, but only * if we create a context and call glGetIntegerv. * * The following values are from a test program * that does so. */ c->maxPbufferWidth = 8192; c->maxPbufferHeight = 8192; c->maxPbufferPixels = /*Do we need this?*/ 0; /* * There is no introspection for this sort of thing * with CGL. What should we do realistically? */ c->optimalPbufferWidth = 0; c->optimalPbufferHeight = 0; /* EXT_texture_from_pixmap */ c->bindToTextureRgb = 0; c->bindToTextureRgba = 0; c->bindToMipmapTexture = 0; c->bindToTextureTargets = 0; c->yInverted = 0; /* EXT_framebuffer_sRGB */ c->sRGBCapable = GL_FALSE; l = c; c = c->next; } } } } } } } } } free(c); l->next = NULL; freeGlCapabilities(&caps); return visualConfigs; }