diff options
Diffstat (limited to 'xorg-server/hw/dmx/glxProxy/glxvisuals.c')
| -rw-r--r-- | xorg-server/hw/dmx/glxProxy/glxvisuals.c | 543 |
1 files changed, 543 insertions, 0 deletions
diff --git a/xorg-server/hw/dmx/glxProxy/glxvisuals.c b/xorg-server/hw/dmx/glxProxy/glxvisuals.c new file mode 100644 index 000000000..77bb137cf --- /dev/null +++ b/xorg-server/hw/dmx/glxProxy/glxvisuals.c @@ -0,0 +1,543 @@ +/* +** License Applicability. Except to the extent portions of this file are +** made subject to an alternative license as permitted in the SGI Free +** Software License B, Version 1.1 (the "License"), the contents of this +** file are subject only to the provisions of the License. You may not use +** this file except in compliance with the License. You may obtain a copy +** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 +** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: +** +** http://oss.sgi.com/projects/FreeB +** +** Note that, as provided in the License, the Software is distributed on an +** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS +** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND +** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A +** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. +** +** 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. +** +** Additional Notice Provisions: The application programming interfaces +** established by SGI in conjunction with the Original Code are The +** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released +** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version +** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X +** Window System(R) (Version 1.3), released October 19, 1998. This software +** was created using the OpenGL(R) version 1.2.1 Sample Implementation +** published by SGI, but has not been independently verified as being +** compliant with the OpenGL(R) version 1.2.1 Specification. +** +*/ + +#ifdef HAVE_DMX_CONFIG_H +#include <dmx-config.h> +#endif + +#include <assert.h> +#include "dmx.h" +#include "glxserver.h" +#include "glxutil.h" +#include "dmx_glxvisuals.h" + +static int numConfigs = 0; +static __GLXvisualConfig *visualConfigs = NULL; +static void **visualPrivates = NULL; + +int glxVisualsMatch( __GLXvisualConfig *v1, __GLXvisualConfig *v2 ) +{ + if ( (v1->class == v2->class) && + (v1->rgba == v2->rgba) && + (v1->redSize == v2->redSize) && + (v1->greenSize == v2->greenSize) && + (v1->blueSize == v2->blueSize) && + (v1->alphaSize == v2->alphaSize) && + (v1->redMask == v2->redMask) && + (v1->greenMask == v2->greenMask) && + (v1->blueMask == v2->blueMask) && + (v1->alphaMask == v2->alphaMask) && + (v1->accumRedSize == v2->accumRedSize) && + (v1->accumGreenSize == v2->accumGreenSize) && + (v1->accumBlueSize == v2->accumBlueSize) && + (v1->accumAlphaSize == v2->accumAlphaSize) && + (v1->doubleBuffer == v2->doubleBuffer) && + (v1->stereo == v2->stereo) && + (v1->bufferSize == v2->bufferSize) && + (v1->depthSize == v2->depthSize) && + (v1->stencilSize == v2->stencilSize) && + (v1->auxBuffers == v2->auxBuffers) && + (v1->level == v2->level) && + (v1->visualRating == v2->visualRating) && + (v1->transparentPixel == v2->transparentPixel) && + (v1->transparentRed == v2->transparentRed) && + (v1->transparentGreen == v2->transparentGreen) && + (v1->transparentBlue == v2->transparentBlue) && + (v1->transparentAlpha == v2->transparentAlpha) && + (v1->transparentIndex == v2->transparentIndex) && + (v1->multiSampleSize == v2->multiSampleSize) && + (v1->nMultiSampleBuffers == v2->nMultiSampleBuffers) && + (v1->visualSelectGroup == v2->visualSelectGroup) ) { + + return(1); + + } + + return(0); + +} + +VisualID glxMatchGLXVisualInConfigList( __GLXvisualConfig *pGlxVisual, __GLXvisualConfig *configs, int nconfigs ) +{ + int i; + + for (i=0; i<nconfigs; i++) { + + if (glxVisualsMatch( pGlxVisual, &configs[i] )) { + + return( configs[i].vid ); + + } + } + + return(0); +} + +VisualID glxMatchVisualInConfigList( ScreenPtr pScreen, VisualPtr pVisual, __GLXvisualConfig *configs, int nconfigs ) +{ + __GLXscreenInfo *pGlxScreen; + __GLXvisualConfig *pGlxVisual; + int i; + + /* check that the glx extension has been initialized */ + if ( !__glXActiveScreens ) + return(0); + + pGlxScreen = &__glXActiveScreens[pScreen->myNum]; + pGlxVisual = pGlxScreen->pGlxVisual; + + /* find the glx visual info for pVisual */ + for (i = 0; i < pGlxScreen->numVisuals; i++, pGlxVisual++) { + if (pGlxVisual->vid == pVisual->vid) { + break; + } + } + if (i == pGlxScreen->numVisuals) { + /* + * the visual is not supported by glx + */ + return(0); + } + + return( glxMatchGLXVisualInConfigList(pGlxVisual, configs, nconfigs) ); +} + +VisualPtr glxMatchVisual( ScreenPtr pScreen, VisualPtr pVisual, ScreenPtr pMatchScreen ) +{ + __GLXscreenInfo *pGlxScreen2; + int j; + VisualID vid; + + /* check that the glx extension has been initialized */ + if ( !__glXActiveScreens ) + return NULL; + + pGlxScreen2 = &__glXActiveScreens[pMatchScreen->myNum]; + + vid = glxMatchVisualInConfigList( pScreen, pVisual, + pGlxScreen2->pGlxVisual, + pGlxScreen2->numVisuals ); + if (vid) { + /* + * find the X visual of the matching glx visual + */ + for (j=0; j<pMatchScreen->numVisuals; j++) { + if (vid == pMatchScreen->visuals[j].vid) { + return( &pMatchScreen->visuals[j] ); + } + } + } + + return(0); +} + +void glxSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs, + void **privates) +{ + numConfigs = nconfigs; + visualConfigs = configs; + visualPrivates = privates; +} + +static int count_bits(unsigned int n) +{ + int bits = 0; + + while (n > 0) { + if (n & 1) bits++; + n >>= 1; + } + return bits; +} + +static VisualID FindClosestVisual( VisualPtr pVisual, int rootDepth, + DepthPtr pdepth, int ndepths, + VisualPtr pNewVisual, int numNewVisuals) +{ + int d, v; + VisualPtr vis; + + /* + * find the first visual with the same or deeper depth + * of the same class. + */ + for (d=0; d<ndepths; d++) { + if (pdepth[d].depth >= rootDepth) { + for (v=0; v<pdepth[d].numVids; v++) { + + /* find the new visual structure */ + vis = pNewVisual; + while( pdepth[d].vids[v] != vis->vid ) vis++; + + if (vis->class == pVisual->class) { + return( pdepth[d].vids[v] ); + } + } + } + } + + /* + * did not find any. + * try to look for the same class only. + */ + for (d=0; d<ndepths; d++) { + for (v=0; v<pdepth[d].numVids; v++) { + + /* find the new visual structure */ + vis = pNewVisual; + while( pdepth[d].vids[v] != vis->vid ) vis++; + + if (vis->class == pVisual->class) { + return( pdepth[d].vids[v] ); + } + } + } + + /* + * if not found - just take the first visual + */ + return( pdepth[0].vids[0] ); +} + +Bool glxInitVisuals(int *nvisualp, VisualPtr *visualp, + VisualID *defaultVisp, + int ndepth, DepthPtr pdepth, + int rootDepth) +{ + int numRGBconfigs; + int numCIconfigs; + int numVisuals = *nvisualp; + int numNewVisuals; + int numNewConfigs; + VisualPtr pVisual = *visualp; + VisualPtr pVisualNew = NULL; + VisualID *orig_vid = NULL; + __GLXvisualConfig *glXVisualPtr = NULL; + __GLXvisualConfig *pNewVisualConfigs = NULL; + void **glXVisualPriv; + dmxGlxVisualPrivate **pNewVisualPriv; + int found_default; + int i, j, k; + int numGLXvis = 0; + GLint *isGLXvis; + + if (numConfigs > 0) + numNewConfigs = numConfigs; + else + return False; + + MAXSCREENSALLOC(__glXActiveScreens); + if (!__glXActiveScreens) + return False; + + /* Alloc space for the list of new GLX visuals */ + pNewVisualConfigs = (__GLXvisualConfig *) + __glXMalloc(numNewConfigs * sizeof(__GLXvisualConfig)); + if (!pNewVisualConfigs) { + return FALSE; + } + + /* Alloc space for the list of new GLX visual privates */ + pNewVisualPriv = (dmxGlxVisualPrivate **) __glXMalloc(numNewConfigs * sizeof(dmxGlxVisualPrivate *)); + if (!pNewVisualPriv) { + __glXFree(pNewVisualConfigs); + return FALSE; + } + + /* copy driver's visual config info */ + for (i = 0; i < numConfigs; i++) { + pNewVisualConfigs[i] = visualConfigs[i]; + pNewVisualPriv[i] = (dmxGlxVisualPrivate *)visualPrivates[i]; + } + +#if 1 + /* FIXME: This is a hack to workaround a hang in xtest caused by a + * mismatch between what the front end (i.e., DMX) server calculates + * for the visual configs and what the back-end servers have. + */ + { + int numTCRGBconfigs = 0; + int numDCRGBconfigs = 0; + + numRGBconfigs = 0; + numCIconfigs = 0; + + for (i = 0; i < numNewConfigs; i++) { + if (pNewVisualConfigs[i].rgba) { + if (pNewVisualConfigs[i].class == TrueColor) + numTCRGBconfigs++; + else + numDCRGBconfigs++; + numRGBconfigs++; + } else + numCIconfigs++; + } + + /* Count the total number of visuals to compute */ + numNewVisuals = 0; + for (i = 0; i < numVisuals; i++) { + numNewVisuals += + (pVisual[i].class == TrueColor) ? numTCRGBconfigs : + (pVisual[i].class == DirectColor) ? numDCRGBconfigs : + numCIconfigs; + } + } +#else + /* Count the number of RGB and CI visual configs */ + numRGBconfigs = 0; + numCIconfigs = 0; + for (i = 0; i < numNewConfigs; i++) { + if (pNewVisualConfigs[i].rgba) + numRGBconfigs++; + else + numCIconfigs++; + } + + /* Count the total number of visuals to compute */ + numNewVisuals = 0; + for (i = 0; i < numVisuals; i++) { + numNewVisuals += + (pVisual[i].class == TrueColor || pVisual[i].class == DirectColor) + ? numRGBconfigs : numCIconfigs; + } +#endif + + /* Reset variables for use with the next screen/driver's visual configs */ + visualConfigs = NULL; + numConfigs = 0; + + /* Alloc temp space for the list of orig VisualIDs for each new visual */ + orig_vid = (VisualID *)__glXMalloc(numNewVisuals * sizeof(VisualID)); + if (!orig_vid) { + __glXFree(pNewVisualPriv); + __glXFree(pNewVisualConfigs); + return FALSE; + } + + /* Alloc space for the list of glXVisuals */ + glXVisualPtr = (__GLXvisualConfig *)__glXMalloc(numNewVisuals * + sizeof(__GLXvisualConfig)); + if (!glXVisualPtr) { + __glXFree(orig_vid); + __glXFree(pNewVisualPriv); + __glXFree(pNewVisualConfigs); + 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; +} |