588 lines
17 KiB
C
588 lines
17 KiB
C
/*
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* Copyright (c) 1987, Oracle and/or its affiliates. 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 and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* 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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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/*
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* This is based on cfbcmap.c. The functions here are useful independently
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* of cfb, which is the reason for including them here. How "mi" these
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* are may be debatable.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xproto.h>
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#include "scrnintstr.h"
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#include "colormapst.h"
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#include "resource.h"
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#include "globals.h"
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#include "micmap.h"
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DevPrivateKeyRec micmapScrPrivateKeyRec;
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int
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miListInstalledColormaps(ScreenPtr pScreen, Colormap * pmaps)
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{
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if (GetInstalledmiColormap(pScreen)) {
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*pmaps = GetInstalledmiColormap(pScreen)->mid;
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return 1;
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}
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return 0;
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}
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void
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miInstallColormap(ColormapPtr pmap)
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{
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ColormapPtr oldpmap = GetInstalledmiColormap(pmap->pScreen);
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if (pmap != oldpmap) {
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/* Uninstall pInstalledMap. No hardware changes required, just
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* notify all interested parties. */
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if (oldpmap != (ColormapPtr) None)
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WalkTree(pmap->pScreen, TellLostMap, (char *) &oldpmap->mid);
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/* Install pmap */
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SetInstalledmiColormap(pmap->pScreen, pmap);
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WalkTree(pmap->pScreen, TellGainedMap, (char *) &pmap->mid);
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}
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}
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void
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miUninstallColormap(ColormapPtr pmap)
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{
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ColormapPtr curpmap = GetInstalledmiColormap(pmap->pScreen);
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if (pmap == curpmap) {
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if (pmap->mid != pmap->pScreen->defColormap) {
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dixLookupResourceByType((void **) &curpmap,
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pmap->pScreen->defColormap,
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RT_COLORMAP, serverClient, DixUseAccess);
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(*pmap->pScreen->InstallColormap) (curpmap);
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}
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}
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}
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void
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miResolveColor(unsigned short *pred, unsigned short *pgreen,
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unsigned short *pblue, VisualPtr pVisual)
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{
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int shift = 16 - pVisual->bitsPerRGBValue;
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unsigned lim = (1 << pVisual->bitsPerRGBValue) - 1;
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if ((pVisual->class | DynamicClass) == GrayScale) {
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/* rescale to gray then rgb bits */
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*pred = (30L * *pred + 59L * *pgreen + 11L * *pblue) / 100;
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*pblue = *pgreen = *pred = ((*pred >> shift) * 65535) / lim;
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}
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else {
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/* rescale to rgb bits */
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*pred = ((*pred >> shift) * 65535) / lim;
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*pgreen = ((*pgreen >> shift) * 65535) / lim;
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*pblue = ((*pblue >> shift) * 65535) / lim;
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}
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}
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Bool
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miInitializeColormap(ColormapPtr pmap)
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{
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unsigned i;
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VisualPtr pVisual;
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unsigned lim, maxent, shift;
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pVisual = pmap->pVisual;
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lim = (1 << pVisual->bitsPerRGBValue) - 1;
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shift = 16 - pVisual->bitsPerRGBValue;
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maxent = pVisual->ColormapEntries - 1;
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if (pVisual->class == TrueColor) {
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unsigned limr, limg, limb;
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limr = pVisual->redMask >> pVisual->offsetRed;
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limg = pVisual->greenMask >> pVisual->offsetGreen;
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limb = pVisual->blueMask >> pVisual->offsetBlue;
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for (i = 0; i <= maxent; i++) {
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/* rescale to [0..65535] then rgb bits */
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pmap->red[i].co.local.red =
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((((i * 65535) / limr) >> shift) * 65535) / lim;
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pmap->green[i].co.local.green =
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((((i * 65535) / limg) >> shift) * 65535) / lim;
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pmap->blue[i].co.local.blue =
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((((i * 65535) / limb) >> shift) * 65535) / lim;
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}
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}
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else if (pVisual->class == StaticColor) {
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unsigned limr, limg, limb;
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limr = pVisual->redMask >> pVisual->offsetRed;
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limg = pVisual->greenMask >> pVisual->offsetGreen;
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limb = pVisual->blueMask >> pVisual->offsetBlue;
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for (i = 0; i <= maxent; i++) {
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/* rescale to [0..65535] then rgb bits */
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pmap->red[i].co.local.red =
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((((((i & pVisual->redMask) >> pVisual->offsetRed)
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* 65535) / limr) >> shift) * 65535) / lim;
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pmap->red[i].co.local.green =
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((((((i & pVisual->greenMask) >> pVisual->offsetGreen)
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* 65535) / limg) >> shift) * 65535) / lim;
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pmap->red[i].co.local.blue =
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((((((i & pVisual->blueMask) >> pVisual->offsetBlue)
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* 65535) / limb) >> shift) * 65535) / lim;
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}
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}
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else if (pVisual->class == StaticGray) {
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for (i = 0; i <= maxent; i++) {
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/* rescale to [0..65535] then rgb bits */
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pmap->red[i].co.local.red = ((((i * 65535) / maxent) >> shift)
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* 65535) / lim;
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pmap->red[i].co.local.green = pmap->red[i].co.local.red;
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pmap->red[i].co.local.blue = pmap->red[i].co.local.red;
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}
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}
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return TRUE;
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}
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/* When simulating DirectColor on PseudoColor hardware, multiple
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entries of the colormap must be updated
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*/
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#define AddElement(mask) { \
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pixel = red | green | blue; \
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for (i = 0; i < nresult; i++) \
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if (outdefs[i].pixel == pixel) \
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break; \
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if (i == nresult) \
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{ \
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nresult++; \
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outdefs[i].pixel = pixel; \
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outdefs[i].flags = 0; \
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} \
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outdefs[i].flags |= (mask); \
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outdefs[i].red = pmap->red[red >> pVisual->offsetRed].co.local.red; \
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outdefs[i].green = pmap->green[green >> pVisual->offsetGreen].co.local.green; \
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outdefs[i].blue = pmap->blue[blue >> pVisual->offsetBlue].co.local.blue; \
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}
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int
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miExpandDirectColors(ColormapPtr pmap, int ndef, xColorItem * indefs,
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xColorItem * outdefs)
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{
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int red, green, blue;
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int maxred, maxgreen, maxblue;
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int stepred, stepgreen, stepblue;
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VisualPtr pVisual;
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int pixel;
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int nresult;
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int i;
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pVisual = pmap->pVisual;
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stepred = 1 << pVisual->offsetRed;
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stepgreen = 1 << pVisual->offsetGreen;
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stepblue = 1 << pVisual->offsetBlue;
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maxred = pVisual->redMask;
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maxgreen = pVisual->greenMask;
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maxblue = pVisual->blueMask;
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nresult = 0;
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for (; ndef--; indefs++) {
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if (indefs->flags & DoRed) {
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red = indefs->pixel & pVisual->redMask;
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for (green = 0; green <= maxgreen; green += stepgreen) {
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for (blue = 0; blue <= maxblue; blue += stepblue) {
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AddElement(DoRed)
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}
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}
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}
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if (indefs->flags & DoGreen) {
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green = indefs->pixel & pVisual->greenMask;
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for (red = 0; red <= maxred; red += stepred) {
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for (blue = 0; blue <= maxblue; blue += stepblue) {
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AddElement(DoGreen)
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}
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}
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}
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if (indefs->flags & DoBlue) {
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blue = indefs->pixel & pVisual->blueMask;
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for (red = 0; red <= maxred; red += stepred) {
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for (green = 0; green <= maxgreen; green += stepgreen) {
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AddElement(DoBlue)
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}
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}
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}
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}
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return nresult;
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}
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Bool
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miCreateDefColormap(ScreenPtr pScreen)
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{
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unsigned short zero = 0, ones = 0xFFFF;
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Pixel wp, bp;
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VisualPtr pVisual;
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ColormapPtr cmap;
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int alloctype;
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if (!dixRegisterPrivateKey(&micmapScrPrivateKeyRec, PRIVATE_SCREEN, 0))
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return FALSE;
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for (pVisual = pScreen->visuals;
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pVisual->vid != pScreen->rootVisual; pVisual++);
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if (pScreen->rootDepth == 1 || (pVisual->class & DynamicClass))
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alloctype = AllocNone;
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else
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alloctype = AllocAll;
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if (CreateColormap(pScreen->defColormap, pScreen, pVisual, &cmap,
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alloctype, 0) != Success)
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return FALSE;
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if (pScreen->rootDepth > 1) {
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wp = pScreen->whitePixel;
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bp = pScreen->blackPixel;
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if ((AllocColor(cmap, &ones, &ones, &ones, &wp, 0) !=
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Success) ||
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(AllocColor(cmap, &zero, &zero, &zero, &bp, 0) != Success))
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return FALSE;
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pScreen->whitePixel = wp;
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pScreen->blackPixel = bp;
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}
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(*pScreen->InstallColormap) (cmap);
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return TRUE;
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}
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/*
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* Default true color bitmasks, should be overridden by
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* driver
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*/
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#define _RZ(d) ((d + 2) / 3)
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#define _RS(d) 0
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#define _RM(d) ((1 << _RZ(d)) - 1)
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#define _GZ(d) ((d - _RZ(d) + 1) / 2)
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#define _GS(d) _RZ(d)
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#define _GM(d) (((1 << _GZ(d)) - 1) << _GS(d))
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#define _BZ(d) (d - _RZ(d) - _GZ(d))
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#define _BS(d) (_RZ(d) + _GZ(d))
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#define _BM(d) (((1 << _BZ(d)) - 1) << _BS(d))
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#define _CE(d) (1 << _RZ(d))
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typedef struct _miVisuals {
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struct _miVisuals *next;
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int depth;
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int bitsPerRGB;
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int visuals;
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int count;
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int preferredCVC;
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Pixel redMask, greenMask, blueMask;
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} miVisualsRec, *miVisualsPtr;
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static int miVisualPriority[] = {
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PseudoColor, GrayScale, StaticColor, TrueColor, DirectColor, StaticGray
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};
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#define NUM_PRIORITY 6
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static miVisualsPtr miVisuals;
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void
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miClearVisualTypes(void)
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{
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miVisualsPtr v;
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while ((v = miVisuals)) {
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miVisuals = v->next;
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free(v);
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}
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}
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Bool
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miSetVisualTypesAndMasks(int depth, int visuals, int bitsPerRGB,
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int preferredCVC,
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Pixel redMask, Pixel greenMask, Pixel blueMask)
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{
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miVisualsPtr new, *prev, v;
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int count;
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new = malloc(sizeof *new);
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if (!new)
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return FALSE;
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if (!redMask || !greenMask || !blueMask) {
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redMask = _RM(depth);
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greenMask = _GM(depth);
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blueMask = _BM(depth);
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}
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new->next = 0;
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new->depth = depth;
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new->visuals = visuals;
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new->bitsPerRGB = bitsPerRGB;
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new->preferredCVC = preferredCVC;
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new->redMask = redMask;
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new->greenMask = greenMask;
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new->blueMask = blueMask;
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count = (visuals >> 1) & 033333333333;
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count = visuals - count - ((count >> 1) & 033333333333);
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count = (((count + (count >> 3)) & 030707070707) % 077); /* HAKMEM 169 */
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new->count = count;
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for (prev = &miVisuals; (v = *prev); prev = &v->next);
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*prev = new;
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return TRUE;
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}
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Bool
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miSetVisualTypes(int depth, int visuals, int bitsPerRGB, int preferredCVC)
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{
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return miSetVisualTypesAndMasks(depth, visuals, bitsPerRGB,
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preferredCVC, 0, 0, 0);
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}
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int
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miGetDefaultVisualMask(int depth)
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{
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if (depth > MAX_PSEUDO_DEPTH)
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return LARGE_VISUALS;
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else if (depth >= MIN_TRUE_DEPTH)
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return ALL_VISUALS;
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else if (depth == 1)
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return StaticGrayMask;
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else
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return SMALL_VISUALS;
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}
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static Bool
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miVisualTypesSet(int depth)
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{
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miVisualsPtr visuals;
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for (visuals = miVisuals; visuals; visuals = visuals->next)
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if (visuals->depth == depth)
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return TRUE;
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return FALSE;
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}
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Bool
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miSetPixmapDepths(void)
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{
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int d, f;
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/* Add any unlisted depths from the pixmap formats */
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for (f = 0; f < screenInfo.numPixmapFormats; f++) {
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d = screenInfo.formats[f].depth;
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if (!miVisualTypesSet(d)) {
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if (!miSetVisualTypes(d, 0, 0, -1))
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return FALSE;
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}
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}
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return TRUE;
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}
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/*
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* Distance to least significant one bit
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*/
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static int
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maskShift(Pixel p)
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{
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int s;
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if (!p)
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return 0;
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s = 0;
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while (!(p & 1)) {
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s++;
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p >>= 1;
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}
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return s;
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}
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/*
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* Given a list of formats for a screen, create a list
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* of visuals and depths for the screen which corespond to
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* the set which can be used with this version of cfb.
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*/
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Bool
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miInitVisuals(VisualPtr * visualp, DepthPtr * depthp, int *nvisualp,
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int *ndepthp, int *rootDepthp, VisualID * defaultVisp,
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unsigned long sizes, int bitsPerRGB, int preferredVis)
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{
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int i, j = 0, k;
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VisualPtr visual;
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DepthPtr depth;
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VisualID *vid;
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int d, b;
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int f;
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int ndepth, nvisual;
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int nvtype;
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int vtype;
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miVisualsPtr visuals, nextVisuals;
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int *preferredCVCs, *prefp;
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int first_depth;
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/* none specified, we'll guess from pixmap formats */
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if (!miVisuals) {
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for (f = 0; f < screenInfo.numPixmapFormats; f++) {
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d = screenInfo.formats[f].depth;
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b = screenInfo.formats[f].bitsPerPixel;
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if (sizes & (1 << (b - 1)))
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vtype = miGetDefaultVisualMask(d);
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else
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vtype = 0;
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if (!miSetVisualTypes(d, vtype, bitsPerRGB, -1))
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return FALSE;
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}
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}
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nvisual = 0;
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ndepth = 0;
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for (visuals = miVisuals; visuals; visuals = nextVisuals) {
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nextVisuals = visuals->next;
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ndepth++;
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nvisual += visuals->count;
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}
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depth = xallocarray(ndepth, sizeof(DepthRec));
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visual = xallocarray(nvisual, sizeof(VisualRec));
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preferredCVCs = xallocarray(ndepth, sizeof(int));
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if (!depth || !visual || !preferredCVCs) {
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free(depth);
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free(visual);
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free(preferredCVCs);
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return FALSE;
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}
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*depthp = depth;
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*visualp = visual;
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*ndepthp = ndepth;
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*nvisualp = nvisual;
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prefp = preferredCVCs;
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for (visuals = miVisuals; visuals; visuals = nextVisuals) {
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nextVisuals = visuals->next;
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d = visuals->depth;
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vtype = visuals->visuals;
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nvtype = visuals->count;
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*prefp = visuals->preferredCVC;
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prefp++;
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vid = NULL;
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if (nvtype) {
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vid = xallocarray(nvtype, sizeof(VisualID));
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if (!vid) {
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free(depth);
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free(visual);
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free(preferredCVCs);
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return FALSE;
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}
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}
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depth->depth = d;
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depth->numVids = nvtype;
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depth->vids = vid;
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depth++;
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for (i = 0; i < NUM_PRIORITY; i++) {
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if (!(vtype & (1 << miVisualPriority[i])))
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continue;
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visual->class = miVisualPriority[i];
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visual->bitsPerRGBValue = visuals->bitsPerRGB;
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visual->ColormapEntries = 1 << d;
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visual->nplanes = d;
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visual->vid = *vid = FakeClientID(0);
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switch (visual->class) {
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case PseudoColor:
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case GrayScale:
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case StaticGray:
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visual->redMask = 0;
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visual->greenMask = 0;
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visual->blueMask = 0;
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visual->offsetRed = 0;
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visual->offsetGreen = 0;
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visual->offsetBlue = 0;
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break;
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case DirectColor:
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case TrueColor:
|
|
visual->ColormapEntries = _CE(d);
|
|
/* fall through */
|
|
case StaticColor:
|
|
visual->redMask = visuals->redMask;
|
|
visual->greenMask = visuals->greenMask;
|
|
visual->blueMask = visuals->blueMask;
|
|
visual->offsetRed = maskShift(visuals->redMask);
|
|
visual->offsetGreen = maskShift(visuals->greenMask);
|
|
visual->offsetBlue = maskShift(visuals->blueMask);
|
|
}
|
|
vid++;
|
|
visual++;
|
|
}
|
|
free(visuals);
|
|
}
|
|
miVisuals = NULL;
|
|
visual = *visualp;
|
|
depth = *depthp;
|
|
|
|
/*
|
|
* if we did not supplyied by a preferred visual class
|
|
* check if there is a preferred class in one of the depth
|
|
* structures - if there is, we want to start looking for the
|
|
* default visual/depth from that depth.
|
|
*/
|
|
first_depth = 0;
|
|
if (preferredVis < 0 && defaultColorVisualClass < 0) {
|
|
for (i = 0; i < ndepth; i++) {
|
|
if (preferredCVCs[i] >= 0) {
|
|
first_depth = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = first_depth; i < ndepth; i++) {
|
|
int prefColorVisualClass = -1;
|
|
|
|
if (defaultColorVisualClass >= 0)
|
|
prefColorVisualClass = defaultColorVisualClass;
|
|
else if (preferredVis >= 0)
|
|
prefColorVisualClass = preferredVis;
|
|
else if (preferredCVCs[i] >= 0)
|
|
prefColorVisualClass = preferredCVCs[i];
|
|
|
|
if (*rootDepthp && *rootDepthp != depth[i].depth)
|
|
continue;
|
|
|
|
for (j = 0; j < depth[i].numVids; j++) {
|
|
for (k = 0; k < nvisual; k++)
|
|
if (visual[k].vid == depth[i].vids[j])
|
|
break;
|
|
if (k == nvisual)
|
|
continue;
|
|
if (prefColorVisualClass < 0 ||
|
|
visual[k].class == prefColorVisualClass)
|
|
break;
|
|
}
|
|
if (j != depth[i].numVids)
|
|
break;
|
|
}
|
|
if (i == ndepth) {
|
|
i = 0;
|
|
j = 0;
|
|
}
|
|
*rootDepthp = depth[i].depth;
|
|
*defaultVisp = depth[i].vids[j];
|
|
free(preferredCVCs);
|
|
|
|
return TRUE;
|
|
}
|