diff options
Diffstat (limited to 'xorg-server/hw/xquartz/GL/visualConfigs.c')
| -rw-r--r-- | xorg-server/hw/xquartz/GL/visualConfigs.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/xorg-server/hw/xquartz/GL/visualConfigs.c b/xorg-server/hw/xquartz/GL/visualConfigs.c new file mode 100644 index 000000000..81f88fb3c --- /dev/null +++ b/xorg-server/hw/xquartz/GL/visualConfigs.c @@ -0,0 +1,255 @@ +/* + * 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/CGLContext.h> + +#include <GL/gl.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 <glxscreens.h> +#include <GL/internal/glcore.h> + +#include "capabilities.h" +#include "visualConfigs.h" + +/* Based originally on code from indirect.c which was based on code from i830_dri.c. */ +void setVisualConfigs(void) { + int numConfigs = 0; + __GLXvisualConfig *visualConfigs = NULL; + void **visualPrivates = NULL; + struct glCapabilities caps; + struct glCapabilitiesConfig *conf = NULL; + int stereo, depth, aux, buffers, stencil, accum, color, msample; + int i = 0; + + if(getGlCapabilities(&caps)) { + ErrorF("error from getGlCapabilities()!\n"); + return; + } + + /* + 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); + conf = 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); + } + + visualConfigs = xcalloc(sizeof(*visualConfigs), numConfigs); + + if(NULL == visualConfigs) { + ErrorF("xcalloc failure when allocating visualConfigs\n"); + freeGlCapabilities(&caps); + return; + } + + visualPrivates = xcalloc(sizeof(void *), numConfigs); + + if(NULL == visualPrivates) { + ErrorF("xcalloc failure when allocating visualPrivates"); + freeGlCapabilities(&caps); + xfree(visualConfigs); + return; + } + + i = 0; /* 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) { + visualConfigs[i].vid = (VisualID)(-1); + visualConfigs[i].class = TrueColor; + + visualConfigs[i].rgba = true; + visualConfigs[i].redSize = conf->color_buffers[color].r; + visualConfigs[i].greenSize = conf->color_buffers[color].g; + visualConfigs[i].blueSize = conf->color_buffers[color].b; + + if(GLCAPS_COLOR_BUF_INVALID_VALUE == conf->color_buffers[color].a) { + /* This visual has no alpha. */ + visualConfigs[i].alphaSize = 0; + } else { + visualConfigs[i].alphaSize = conf->color_buffers[color].a; + } + + /* + * If the .a/alpha value is unset, then don't add it to the + * bufferSize specification. The INVALID_VALUE indicates that it + * was unset. + * + * This prevents odd bufferSizes, such as 14. + */ + if(GLCAPS_COLOR_BUF_INVALID_VALUE == conf->color_buffers[color].a) { + visualConfigs[i].bufferSize = conf->color_buffers[color].r + + conf->color_buffers[color].g + conf->color_buffers[color].b; + } else { + visualConfigs[i].bufferSize = conf->color_buffers[color].r + + conf->color_buffers[color].g + conf->color_buffers[color].b + + conf->color_buffers[color].a; + } + + /* + * I'm uncertain about these masks. + * I don't think we actually care what the values are in our + * libGL, so it doesn't seem to make a difference. + */ + visualConfigs[i].redMask = -1; + visualConfigs[i].greenMask = -1; + visualConfigs[i].blueMask = -1; + visualConfigs[i].alphaMask = -1; + + if(conf->total_accum_buffers > 0) { + visualConfigs[i].accumRedSize = conf->accum_buffers[accum].r; + visualConfigs[i].accumGreenSize = conf->accum_buffers[accum].g; + visualConfigs[i].accumBlueSize = conf->accum_buffers[accum].b; + if(GLCAPS_COLOR_BUF_INVALID_VALUE != conf->accum_buffers[accum].a) { + visualConfigs[i].accumAlphaSize = conf->accum_buffers[accum].a; + } else { + visualConfigs[i].accumAlphaSize = 0; + } + } else { + visualConfigs[i].accumRedSize = 0; + visualConfigs[i].accumGreenSize = 0; + visualConfigs[i].accumBlueSize = 0; + visualConfigs[i].accumAlphaSize = 0; + } + + visualConfigs[i].doubleBuffer = buffers ? TRUE : FALSE; + visualConfigs[i].stereo = stereo ? TRUE : FALSE; + + visualConfigs[i].depthSize = conf->depth_buffers[depth]; + + if(conf->total_stencil_bit_depths > 0) { + visualConfigs[i].stencilSize = conf->stencil_bit_depths[stencil]; + } else { + visualConfigs[i].stencilSize = 0; + } + visualConfigs[i].auxBuffers = aux ? conf->aux_buffers : 0; + visualConfigs[i].level = 0; + + if(conf->accelerated) { + visualConfigs[i].visualRating = GLX_NONE; + } else { + visualConfigs[i].visualRating = GLX_SLOW_VISUAL_EXT; + } + + visualConfigs[i].transparentPixel = GLX_NONE; + visualConfigs[i].transparentRed = GLX_NONE; + visualConfigs[i].transparentGreen = GLX_NONE; + visualConfigs[i].transparentBlue = GLX_NONE; + visualConfigs[i].transparentAlpha = GLX_NONE; + visualConfigs[i].transparentIndex = GLX_NONE; + + if(msample > 0) { + visualConfigs[i].multiSampleSize = conf->multisample_samples; + visualConfigs[i].nMultiSampleBuffers = conf->multisample_buffers; + } else { + visualConfigs[i].multiSampleSize = 0; + visualConfigs[i].nMultiSampleBuffers = 0; + } + + ++i; + } + } + } + } + } + } + } + } + } + + if (i != numConfigs) { + ErrorF("numConfigs calculation error in setVisualConfigs! numConfigs is %d i is %d\n", numConfigs, i); + abort(); + } + + freeGlCapabilities(&caps); + + GlxSetVisualConfigs(numConfigs, visualConfigs, visualPrivates); +} |