2004-06-30 22:06:56 +02:00
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/*
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Update to SGI FreeB 2.0.
Under the terms of version 1.1, "once Covered Code has been published
under a particular version of the License, Recipient may, for the
duration of the License, continue to use it under the terms of that
version, or choose to use such Covered Code under the terms of any
subsequent version published by SGI."
FreeB 2.0 license refers to "dates of first publication". They are here
taken to be 1991-2000, as noted in the original license text:
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
Official FreeB 2.0 text:
http://oss.sgi.com/projects/FreeB/SGIFreeSWLicB.2.0.pdf
As always, this code has not been tested for conformance with the OpenGL
specification. OpenGL conformance testing is available from
http://khronos.org/ and is required for use of the OpenGL logo in
product advertising and promotion.
2008-09-19 18:02:28 +02:00
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* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice including the dates of first publication and
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* either this permission notice or a reference to
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* http://oss.sgi.com/projects/FreeB/
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* shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of Silicon Graphics, Inc.
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* shall not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization from
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* Silicon Graphics, Inc.
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*/
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2004-06-30 22:06:56 +02:00
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2005-07-27 10:16:35 +02:00
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#ifdef HAVE_DMX_CONFIG_H
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#include <dmx-config.h>
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#endif
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2006-07-16 04:05:38 +02:00
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#include <assert.h>
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2004-06-30 22:06:56 +02:00
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#include "dmx.h"
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#include "glxserver.h"
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#include "glxutil.h"
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#include "dmx_glxvisuals.h"
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2009-01-12 19:57:11 +01:00
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#undef Xmalloc
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#undef Xcalloc
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#undef Xrealloc
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#undef Xfree
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2004-06-30 22:06:56 +02:00
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static int numConfigs = 0;
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static __GLXvisualConfig *visualConfigs = NULL;
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static void **visualPrivates = NULL;
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int glxVisualsMatch( __GLXvisualConfig *v1, __GLXvisualConfig *v2 )
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{
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if ( (v1->class == v2->class) &&
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(v1->rgba == v2->rgba) &&
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(v1->redSize == v2->redSize) &&
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(v1->greenSize == v2->greenSize) &&
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(v1->blueSize == v2->blueSize) &&
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(v1->alphaSize == v2->alphaSize) &&
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(v1->redMask == v2->redMask) &&
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(v1->greenMask == v2->greenMask) &&
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(v1->blueMask == v2->blueMask) &&
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(v1->alphaMask == v2->alphaMask) &&
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(v1->accumRedSize == v2->accumRedSize) &&
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(v1->accumGreenSize == v2->accumGreenSize) &&
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(v1->accumBlueSize == v2->accumBlueSize) &&
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(v1->accumAlphaSize == v2->accumAlphaSize) &&
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(v1->doubleBuffer == v2->doubleBuffer) &&
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(v1->stereo == v2->stereo) &&
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(v1->bufferSize == v2->bufferSize) &&
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(v1->depthSize == v2->depthSize) &&
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(v1->stencilSize == v2->stencilSize) &&
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(v1->auxBuffers == v2->auxBuffers) &&
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(v1->level == v2->level) &&
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(v1->visualRating == v2->visualRating) &&
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(v1->transparentPixel == v2->transparentPixel) &&
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(v1->transparentRed == v2->transparentRed) &&
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(v1->transparentGreen == v2->transparentGreen) &&
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(v1->transparentBlue == v2->transparentBlue) &&
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(v1->transparentAlpha == v2->transparentAlpha) &&
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(v1->transparentIndex == v2->transparentIndex) &&
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(v1->multiSampleSize == v2->multiSampleSize) &&
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(v1->nMultiSampleBuffers == v2->nMultiSampleBuffers) &&
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(v1->visualSelectGroup == v2->visualSelectGroup) ) {
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return(1);
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}
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return(0);
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}
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VisualID glxMatchGLXVisualInConfigList( __GLXvisualConfig *pGlxVisual, __GLXvisualConfig *configs, int nconfigs )
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{
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int i;
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for (i=0; i<nconfigs; i++) {
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if (glxVisualsMatch( pGlxVisual, &configs[i] )) {
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return( configs[i].vid );
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}
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}
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return(0);
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}
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VisualID glxMatchVisualInConfigList( ScreenPtr pScreen, VisualPtr pVisual, __GLXvisualConfig *configs, int nconfigs )
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{
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__GLXscreenInfo *pGlxScreen;
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__GLXvisualConfig *pGlxVisual;
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int i;
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/* check that the glx extension has been initialized */
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if ( !__glXActiveScreens )
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return(0);
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pGlxScreen = &__glXActiveScreens[pScreen->myNum];
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pGlxVisual = pGlxScreen->pGlxVisual;
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/* find the glx visual info for pVisual */
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for (i = 0; i < pGlxScreen->numVisuals; i++, pGlxVisual++) {
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if (pGlxVisual->vid == pVisual->vid) {
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break;
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}
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}
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if (i == pGlxScreen->numVisuals) {
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/*
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* the visual is not supported by glx
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*/
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return(0);
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}
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return( glxMatchGLXVisualInConfigList(pGlxVisual, configs, nconfigs) );
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}
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VisualPtr glxMatchVisual( ScreenPtr pScreen, VisualPtr pVisual, ScreenPtr pMatchScreen )
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{
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__GLXscreenInfo *pGlxScreen2;
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int j;
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VisualID vid;
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/* check that the glx extension has been initialized */
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if ( !__glXActiveScreens )
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return NULL;
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pGlxScreen2 = &__glXActiveScreens[pMatchScreen->myNum];
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vid = glxMatchVisualInConfigList( pScreen, pVisual,
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pGlxScreen2->pGlxVisual,
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pGlxScreen2->numVisuals );
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if (vid) {
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/*
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* find the X visual of the matching glx visual
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*/
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for (j=0; j<pMatchScreen->numVisuals; j++) {
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if (vid == pMatchScreen->visuals[j].vid) {
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return( &pMatchScreen->visuals[j] );
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}
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}
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}
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return(0);
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}
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void glxSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs,
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void **privates)
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{
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numConfigs = nconfigs;
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visualConfigs = configs;
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visualPrivates = privates;
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}
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static int count_bits(unsigned int n)
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{
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int bits = 0;
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while (n > 0) {
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if (n & 1) bits++;
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n >>= 1;
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}
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return bits;
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}
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static VisualID FindClosestVisual( VisualPtr pVisual, int rootDepth,
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DepthPtr pdepth, int ndepths,
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VisualPtr pNewVisual, int numNewVisuals)
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{
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int d, v;
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VisualPtr vis;
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/*
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* find the first visual with the same or deeper depth
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* of the same class.
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*/
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for (d=0; d<ndepths; d++) {
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if (pdepth[d].depth >= rootDepth) {
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for (v=0; v<pdepth[d].numVids; v++) {
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/* find the new visual structure */
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vis = pNewVisual;
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while( pdepth[d].vids[v] != vis->vid ) vis++;
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if (vis->class == pVisual->class) {
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return( pdepth[d].vids[v] );
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}
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}
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}
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}
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/*
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* did not find any.
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* try to look for the same class only.
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*/
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for (d=0; d<ndepths; d++) {
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for (v=0; v<pdepth[d].numVids; v++) {
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/* find the new visual structure */
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vis = pNewVisual;
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while( pdepth[d].vids[v] != vis->vid ) vis++;
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if (vis->class == pVisual->class) {
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return( pdepth[d].vids[v] );
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}
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}
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}
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/*
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* if not found - just take the first visual
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*/
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return( pdepth[0].vids[0] );
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}
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Bool glxInitVisuals(int *nvisualp, VisualPtr *visualp,
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VisualID *defaultVisp,
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int ndepth, DepthPtr pdepth,
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int rootDepth)
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{
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int numRGBconfigs;
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int numCIconfigs;
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int numVisuals = *nvisualp;
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int numNewVisuals;
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int numNewConfigs;
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VisualPtr pVisual = *visualp;
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VisualPtr pVisualNew = NULL;
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VisualID *orig_vid = NULL;
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__GLXvisualConfig *glXVisualPtr = NULL;
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__GLXvisualConfig *pNewVisualConfigs = NULL;
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void **glXVisualPriv;
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dmxGlxVisualPrivate **pNewVisualPriv;
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int found_default;
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int i, j, k;
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int numGLXvis = 0;
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GLint *isGLXvis;
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if (numConfigs > 0)
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numNewConfigs = numConfigs;
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else
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return False;
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MAXSCREENSALLOC(__glXActiveScreens);
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if (!__glXActiveScreens)
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return False;
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/* Alloc space for the list of new GLX visuals */
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pNewVisualConfigs = (__GLXvisualConfig *)
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__glXMalloc(numNewConfigs * sizeof(__GLXvisualConfig));
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if (!pNewVisualConfigs) {
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return FALSE;
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}
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/* Alloc space for the list of new GLX visual privates */
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pNewVisualPriv = (dmxGlxVisualPrivate **) __glXMalloc(numNewConfigs * sizeof(dmxGlxVisualPrivate *));
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if (!pNewVisualPriv) {
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__glXFree(pNewVisualConfigs);
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return FALSE;
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}
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/* copy driver's visual config info */
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for (i = 0; i < numConfigs; i++) {
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pNewVisualConfigs[i] = visualConfigs[i];
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pNewVisualPriv[i] = (dmxGlxVisualPrivate *)visualPrivates[i];
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}
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#if 1
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/* FIXME: This is a hack to workaround a hang in xtest caused by a
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* mismatch between what the front end (i.e., DMX) server calculates
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* for the visual configs and what the back-end servers have.
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*/
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{
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int numTCRGBconfigs = 0;
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int numDCRGBconfigs = 0;
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numRGBconfigs = 0;
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numCIconfigs = 0;
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for (i = 0; i < numNewConfigs; i++) {
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if (pNewVisualConfigs[i].rgba) {
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if (pNewVisualConfigs[i].class == TrueColor)
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numTCRGBconfigs++;
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else
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numDCRGBconfigs++;
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numRGBconfigs++;
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} else
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numCIconfigs++;
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}
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/* Count the total number of visuals to compute */
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numNewVisuals = 0;
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for (i = 0; i < numVisuals; i++) {
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numNewVisuals +=
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(pVisual[i].class == TrueColor) ? numTCRGBconfigs :
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(pVisual[i].class == DirectColor) ? numDCRGBconfigs :
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numCIconfigs;
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}
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}
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#else
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/* Count the number of RGB and CI visual configs */
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numRGBconfigs = 0;
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numCIconfigs = 0;
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for (i = 0; i < numNewConfigs; i++) {
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if (pNewVisualConfigs[i].rgba)
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numRGBconfigs++;
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else
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numCIconfigs++;
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}
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/* Count the total number of visuals to compute */
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numNewVisuals = 0;
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for (i = 0; i < numVisuals; i++) {
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numNewVisuals +=
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(pVisual[i].class == TrueColor || pVisual[i].class == DirectColor)
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? numRGBconfigs : numCIconfigs;
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}
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#endif
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/* Reset variables for use with the next screen/driver's visual configs */
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visualConfigs = NULL;
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numConfigs = 0;
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/* Alloc temp space for the list of orig VisualIDs for each new visual */
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|
orig_vid = (VisualID *)__glXMalloc(numNewVisuals * sizeof(VisualID));
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|
if (!orig_vid) {
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|
__glXFree(pNewVisualPriv);
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|
|
__glXFree(pNewVisualConfigs);
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|
return FALSE;
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|
}
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|
|
/* Alloc space for the list of glXVisuals */
|
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|
|
glXVisualPtr = (__GLXvisualConfig *)__glXMalloc(numNewVisuals *
|
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|
|
sizeof(__GLXvisualConfig));
|
|
|
|
if (!glXVisualPtr) {
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|
|
__glXFree(orig_vid);
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|
|
__glXFree(pNewVisualPriv);
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|
|
__glXFree(pNewVisualConfigs);
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|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Alloc space for the list of glXVisualPrivates */
|
|
|
|
glXVisualPriv = (void **)__glXMalloc(numNewVisuals * sizeof(void *));
|
|
|
|
if (!glXVisualPriv) {
|
|
|
|
__glXFree(glXVisualPtr);
|
|
|
|
__glXFree(orig_vid);
|
|
|
|
__glXFree(pNewVisualPriv);
|
|
|
|
__glXFree(pNewVisualConfigs);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Alloc space for the new list of the X server's visuals */
|
|
|
|
pVisualNew = (VisualPtr)__glXMalloc(numNewVisuals * sizeof(VisualRec));
|
|
|
|
if (!pVisualNew) {
|
|
|
|
__glXFree(glXVisualPriv);
|
|
|
|
__glXFree(glXVisualPtr);
|
|
|
|
__glXFree(orig_vid);
|
|
|
|
__glXFree(pNewVisualPriv);
|
|
|
|
__glXFree(pNewVisualConfigs);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
isGLXvis = (GLint *) __glXMalloc(numNewVisuals * sizeof(GLint));
|
|
|
|
if (!isGLXvis) {
|
|
|
|
__glXFree(glXVisualPriv);
|
|
|
|
__glXFree(glXVisualPtr);
|
|
|
|
__glXFree(orig_vid);
|
|
|
|
__glXFree(pNewVisualPriv);
|
|
|
|
__glXFree(pNewVisualConfigs);
|
|
|
|
__glXFree(pVisualNew);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Initialize the new visuals */
|
|
|
|
found_default = FALSE;
|
|
|
|
for (i = j = 0; i < numVisuals; i++) {
|
|
|
|
|
|
|
|
for (k = 0; k < numNewConfigs; k++) {
|
|
|
|
|
|
|
|
int new_depth;
|
|
|
|
int depth;
|
|
|
|
int d,v;
|
|
|
|
|
|
|
|
/* find the depth of the new visual config */
|
|
|
|
new_depth = pNewVisualPriv[k]->x_visual_depth;
|
|
|
|
|
|
|
|
/* find the depth of the original visual */
|
|
|
|
depth = 0;
|
|
|
|
d = 0;
|
|
|
|
while( (depth==0) && (d < ndepth) ) {
|
|
|
|
v = 0;
|
|
|
|
while( (depth==0) && (v < pdepth[d].numVids) ) {
|
|
|
|
if (pdepth[d].vids[v] == pVisual[i].vid) {
|
|
|
|
depth = pdepth[d].depth;
|
|
|
|
}
|
|
|
|
v++;
|
|
|
|
}
|
|
|
|
d++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* check that the visual has the same class and depth
|
|
|
|
* as the new config
|
|
|
|
*/
|
|
|
|
if ( pVisual[i].class != pNewVisualPriv[k]->x_visual_class ||
|
|
|
|
(depth != new_depth) )
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* Initialize the new visual */
|
|
|
|
pVisualNew[j] = pVisual[i];
|
|
|
|
pVisualNew[j].vid = FakeClientID(0);
|
|
|
|
|
|
|
|
/* Check for the default visual */
|
|
|
|
if (!found_default && pVisual[i].vid == *defaultVisp) {
|
|
|
|
*defaultVisp = pVisualNew[j].vid;
|
|
|
|
found_default = TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Save the old VisualID */
|
|
|
|
orig_vid[j] = pVisual[i].vid;
|
|
|
|
|
|
|
|
/* Initialize the glXVisual */
|
|
|
|
glXVisualPtr[j] = pNewVisualConfigs[k];
|
|
|
|
glXVisualPtr[j].vid = pVisualNew[j].vid;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If the class is -1, then assume the X visual information
|
|
|
|
* is identical to what GLX needs, and take them from the X
|
|
|
|
* visual. NOTE: if class != -1, then all other fields MUST
|
|
|
|
* be initialized.
|
|
|
|
*/
|
|
|
|
if (glXVisualPtr[j].class == -1) {
|
|
|
|
glXVisualPtr[j].class = pVisual[i].class;
|
|
|
|
glXVisualPtr[j].redSize = count_bits(pVisual[i].redMask);
|
|
|
|
glXVisualPtr[j].greenSize = count_bits(pVisual[i].greenMask);
|
|
|
|
glXVisualPtr[j].blueSize = count_bits(pVisual[i].blueMask);
|
|
|
|
glXVisualPtr[j].alphaSize = glXVisualPtr[j].alphaSize;
|
|
|
|
glXVisualPtr[j].redMask = pVisual[i].redMask;
|
|
|
|
glXVisualPtr[j].greenMask = pVisual[i].greenMask;
|
|
|
|
glXVisualPtr[j].blueMask = pVisual[i].blueMask;
|
|
|
|
glXVisualPtr[j].alphaMask = glXVisualPtr[j].alphaMask;
|
|
|
|
glXVisualPtr[j].bufferSize = rootDepth;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Save the device-dependent private for this visual */
|
|
|
|
glXVisualPriv[j] = pNewVisualPriv[k];
|
|
|
|
|
|
|
|
isGLXvis[j] = glxMatchGLXVisualInConfigList( &glXVisualPtr[j],
|
|
|
|
dmxScreens[screenInfo.numScreens-1].glxVisuals,
|
|
|
|
dmxScreens[screenInfo.numScreens-1].numGlxVisuals );
|
|
|
|
if (isGLXvis[j]) numGLXvis++;
|
|
|
|
|
|
|
|
j++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
assert(j <= numNewVisuals);
|
|
|
|
numNewVisuals = j; /* correct number of new visuals */
|
|
|
|
|
|
|
|
/* Save the GLX visuals in the screen structure */
|
|
|
|
__glXActiveScreens[screenInfo.numScreens-1].numVisuals = numNewVisuals;
|
|
|
|
__glXActiveScreens[screenInfo.numScreens-1].numGLXVisuals = numGLXvis;
|
|
|
|
__glXActiveScreens[screenInfo.numScreens-1].isGLXvis = isGLXvis;
|
|
|
|
__glXActiveScreens[screenInfo.numScreens-1].pGlxVisual = glXVisualPtr;
|
|
|
|
|
|
|
|
|
|
|
|
/* Set up depth's VisualIDs */
|
|
|
|
for (i = 0; i < ndepth; i++) {
|
|
|
|
int numVids = 0;
|
|
|
|
VisualID *pVids = NULL;
|
|
|
|
int k, n = 0;
|
|
|
|
|
|
|
|
/* Count the new number of VisualIDs at this depth */
|
|
|
|
for (j = 0; j < pdepth[i].numVids; j++)
|
|
|
|
for (k = 0; k < numNewVisuals; k++)
|
|
|
|
if (pdepth[i].vids[j] == orig_vid[k])
|
|
|
|
numVids++;
|
|
|
|
|
|
|
|
/* Allocate a new list of VisualIDs for this depth */
|
|
|
|
pVids = (VisualID *)__glXMalloc(numVids * sizeof(VisualID));
|
|
|
|
|
|
|
|
/* Initialize the new list of VisualIDs for this depth */
|
|
|
|
for (j = 0; j < pdepth[i].numVids; j++)
|
|
|
|
for (k = 0; k < numNewVisuals; k++)
|
|
|
|
if (pdepth[i].vids[j] == orig_vid[k])
|
|
|
|
pVids[n++] = pVisualNew[k].vid;
|
|
|
|
|
|
|
|
/* Update this depth's list of VisualIDs */
|
|
|
|
__glXFree(pdepth[i].vids);
|
|
|
|
pdepth[i].vids = pVids;
|
|
|
|
pdepth[i].numVids = numVids;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* if the default visual was rejected - need to choose new
|
|
|
|
* default visual !
|
|
|
|
*/
|
|
|
|
if ( !found_default ) {
|
|
|
|
|
|
|
|
for (i=0; i<numVisuals; i++)
|
|
|
|
if (pVisual[i].vid == *defaultVisp)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (i < numVisuals) {
|
|
|
|
*defaultVisp = FindClosestVisual( &pVisual[i], rootDepth, pdepth, ndepth, pVisualNew, numNewVisuals );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Update the X server's visuals */
|
|
|
|
*nvisualp = numNewVisuals;
|
|
|
|
*visualp = pVisualNew;
|
|
|
|
|
|
|
|
/* Free the old list of the X server's visuals */
|
|
|
|
__glXFree(pVisual);
|
|
|
|
|
|
|
|
/* Clean up temporary allocations */
|
|
|
|
__glXFree(orig_vid);
|
|
|
|
__glXFree(pNewVisualPriv);
|
|
|
|
__glXFree(pNewVisualConfigs);
|
|
|
|
|
|
|
|
/* Free the private list created by DDX HW driver */
|
|
|
|
if (visualPrivates)
|
|
|
|
xfree(visualPrivates);
|
|
|
|
visualPrivates = NULL;
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|