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authormarha <marha@users.sourceforge.net>2009-07-25 20:12:58 +0000
committermarha <marha@users.sourceforge.net>2009-07-25 20:12:58 +0000
commit2553bdd7c359cd87525d367761c86932cec5adff (patch)
treeae71245933c98474a699d3e392de5820879b2018 /xorg-server/hw/xquartz/GL/visualConfigs.c
parente2c51f2ee7b0a3ea1a052fc49324057b4a4bbc78 (diff)
parent4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05 (diff)
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svn merge file:///D:/svnrepos/vcxsrv/branches/released .
Diffstat (limited to 'xorg-server/hw/xquartz/GL/visualConfigs.c')
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diff --git a/xorg-server/hw/xquartz/GL/visualConfigs.c b/xorg-server/hw/xquartz/GL/visualConfigs.c
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+/*
+ * 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);
+}