543 lines
16 KiB
C
543 lines
16 KiB
C
/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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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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#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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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));
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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;
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}
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/* Alloc space for the list of glXVisualPrivates */
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glXVisualPriv = (void **)__glXMalloc(numNewVisuals * sizeof(void *));
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if (!glXVisualPriv) {
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__glXFree(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;
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}
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/* Alloc space for the new list of the X server's visuals */
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pVisualNew = (VisualPtr)__glXMalloc(numNewVisuals * sizeof(VisualRec));
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if (!pVisualNew) {
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__glXFree(glXVisualPriv);
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__glXFree(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;
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}
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isGLXvis = (GLint *) __glXMalloc(numNewVisuals * sizeof(GLint));
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if (!isGLXvis) {
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__glXFree(glXVisualPriv);
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__glXFree(glXVisualPtr);
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__glXFree(orig_vid);
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__glXFree(pNewVisualPriv);
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__glXFree(pNewVisualConfigs);
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__glXFree(pVisualNew);
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return FALSE;
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}
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/* Initialize the new visuals */
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found_default = FALSE;
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for (i = j = 0; i < numVisuals; i++) {
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for (k = 0; k < numNewConfigs; k++) {
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int new_depth;
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int depth;
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int d,v;
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/* find the depth of the new visual config */
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new_depth = pNewVisualPriv[k]->x_visual_depth;
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/* find the depth of the original visual */
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depth = 0;
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d = 0;
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while( (depth==0) && (d < ndepth) ) {
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v = 0;
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while( (depth==0) && (v < pdepth[d].numVids) ) {
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if (pdepth[d].vids[v] == pVisual[i].vid) {
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depth = pdepth[d].depth;
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}
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v++;
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}
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d++;
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}
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/* check that the visual has the same class and depth
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* as the new config
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*/
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if ( pVisual[i].class != pNewVisualPriv[k]->x_visual_class ||
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(depth != new_depth) )
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continue;
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/* Initialize the new visual */
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pVisualNew[j] = pVisual[i];
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pVisualNew[j].vid = FakeClientID(0);
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/* Check for the default visual */
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if (!found_default && pVisual[i].vid == *defaultVisp) {
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*defaultVisp = pVisualNew[j].vid;
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found_default = TRUE;
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}
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/* Save the old VisualID */
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orig_vid[j] = pVisual[i].vid;
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/* Initialize the glXVisual */
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glXVisualPtr[j] = pNewVisualConfigs[k];
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glXVisualPtr[j].vid = pVisualNew[j].vid;
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/*
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* If the class is -1, then assume the X visual information
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* is identical to what GLX needs, and take them from the X
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* visual. NOTE: if class != -1, then all other fields MUST
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* be initialized.
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*/
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if (glXVisualPtr[j].class == -1) {
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glXVisualPtr[j].class = pVisual[i].class;
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glXVisualPtr[j].redSize = count_bits(pVisual[i].redMask);
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glXVisualPtr[j].greenSize = count_bits(pVisual[i].greenMask);
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glXVisualPtr[j].blueSize = count_bits(pVisual[i].blueMask);
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glXVisualPtr[j].alphaSize = glXVisualPtr[j].alphaSize;
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glXVisualPtr[j].redMask = pVisual[i].redMask;
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glXVisualPtr[j].greenMask = pVisual[i].greenMask;
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glXVisualPtr[j].blueMask = pVisual[i].blueMask;
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glXVisualPtr[j].alphaMask = glXVisualPtr[j].alphaMask;
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glXVisualPtr[j].bufferSize = rootDepth;
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}
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/* Save the device-dependent private for this visual */
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glXVisualPriv[j] = pNewVisualPriv[k];
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isGLXvis[j] = glxMatchGLXVisualInConfigList( &glXVisualPtr[j],
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dmxScreens[screenInfo.numScreens-1].glxVisuals,
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dmxScreens[screenInfo.numScreens-1].numGlxVisuals );
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if (isGLXvis[j]) numGLXvis++;
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j++;
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}
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}
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assert(j <= numNewVisuals);
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numNewVisuals = j; /* correct number of new visuals */
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/* Save the GLX visuals in the screen structure */
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__glXActiveScreens[screenInfo.numScreens-1].numVisuals = numNewVisuals;
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__glXActiveScreens[screenInfo.numScreens-1].numGLXVisuals = numGLXvis;
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__glXActiveScreens[screenInfo.numScreens-1].isGLXvis = isGLXvis;
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__glXActiveScreens[screenInfo.numScreens-1].pGlxVisual = glXVisualPtr;
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/* Set up depth's VisualIDs */
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for (i = 0; i < ndepth; i++) {
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int numVids = 0;
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VisualID *pVids = NULL;
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int k, n = 0;
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/* Count the new number of VisualIDs at this depth */
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for (j = 0; j < pdepth[i].numVids; j++)
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for (k = 0; k < numNewVisuals; k++)
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if (pdepth[i].vids[j] == orig_vid[k])
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numVids++;
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/* Allocate a new list of VisualIDs for this depth */
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pVids = (VisualID *)__glXMalloc(numVids * sizeof(VisualID));
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/* Initialize the new list of VisualIDs for this depth */
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for (j = 0; j < pdepth[i].numVids; j++)
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for (k = 0; k < numNewVisuals; k++)
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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;
|
|
}
|