142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/* $XFree86$ */
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/*
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* Copyright 2002-2004 Red Hat Inc., Durham, North Carolina.
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*
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation on the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* 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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/*
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* Authors:
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* Kevin E. Martin <kem@redhat.com>
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*
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*/
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/** \file
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* This file provides support for visuals. */
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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 "dmxvisual.h"
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#include "scrnintstr.h"
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#ifdef GLXEXT
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#include <GL/glxint.h>
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extern VisualID glxMatchVisualInConfigList(ScreenPtr pScreen,
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VisualPtr pVisual,
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__GLXvisualConfig *configs,
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int nconfigs);
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static Visual *dmxLookupGLXVisual(ScreenPtr pScreen, VisualPtr pVisual)
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{
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DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
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int j;
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VisualID vid;
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vid = glxMatchVisualInConfigList(pScreen, pVisual,
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dmxScreen->glxVisuals,
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dmxScreen->numGlxVisuals);
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if (vid) {
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/* Find the X visual of the matching GLX visual */
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for (j = 0; j < dmxScreen->beNumVisuals; j++)
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if (vid == dmxScreen->beVisuals[j].visualid)
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return dmxScreen->beVisuals[j].visual;
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}
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/* No matching visual found */
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return NULL;
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}
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#endif
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/** Return the visual that matched \a pVisual. */
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Visual *dmxLookupVisual(ScreenPtr pScreen, VisualPtr pVisual)
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{
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DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
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int i;
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#ifdef GLXEXT
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Visual *retval;
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#endif
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if (!dmxScreen->beDisplay)
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return NULL;
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#ifdef GLXEXT
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if ((retval = dmxLookupGLXVisual(pScreen, pVisual)))
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return retval;
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#endif
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for (i = 0; i < dmxScreen->beNumVisuals; i++) {
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if (pVisual->class == dmxScreen->beVisuals[i].class &&
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pVisual->bitsPerRGBValue == dmxScreen->beVisuals[i].bits_per_rgb &&
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pVisual->ColormapEntries == dmxScreen->beVisuals[i].colormap_size &&
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pVisual->nplanes == dmxScreen->beVisuals[i].depth &&
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pVisual->redMask == dmxScreen->beVisuals[i].red_mask &&
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pVisual->greenMask == dmxScreen->beVisuals[i].green_mask &&
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pVisual->blueMask == dmxScreen->beVisuals[i].blue_mask) {
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return dmxScreen->beVisuals[i].visual;
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}
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}
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return NULL;
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}
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/** Return the visual that matched the \a vid. */
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Visual *dmxLookupVisualFromID(ScreenPtr pScreen, VisualID vid)
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{
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Visual *visual;
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int i;
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if (!dmxScreens[pScreen->myNum].beDisplay)
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return NULL;
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for (i = 0; i < pScreen->numVisuals; i++) {
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if (pScreen->visuals[i].vid == vid) {
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visual = dmxLookupVisual(pScreen, &pScreen->visuals[i]);
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if (visual) return visual;
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}
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}
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return NULL;
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}
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/** Return the colormap for the \a visual. */
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Colormap dmxColormapFromDefaultVisual(ScreenPtr pScreen, Visual *visual)
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{
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DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
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int i;
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if (dmxScreen->beDisplay) {
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for (i = 0; i < dmxScreen->beNumDefColormaps; i++)
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if (visual == dmxScreen->beVisuals[i].visual)
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return dmxScreen->beDefColormaps[i];
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}
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return None;
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}
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