698 lines
18 KiB
C
698 lines
18 KiB
C
/************************************************************
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Copyright 1987 by Sun Microsystems, Inc. Mountain View, CA.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this
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software and its documentation for any purpose and without
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fee is hereby granted, provided that the above copyright no-
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tice appear in all copies and that both that copyright no-
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tice and this permission notice appear in supporting docu-
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mentation, and that the names of Sun or X Consortium
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not be used in advertising or publicity pertaining to
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distribution of the software without specific prior
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written permission. Sun and X Consortium make no
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representations about the suitability of this software for
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any purpose. It is provided "as is" without any express or
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implied warranty.
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SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
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NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE LI-
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ABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
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THE USE OR PERFORMANCE OF THIS 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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_X_EXPORT ColormapPtr miInstalledMaps[MAXSCREENS];
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static Bool miDoInitVisuals(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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_X_EXPORT miInitVisualsProcPtr miInitVisualsProc = miDoInitVisuals;
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_X_EXPORT int
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miListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
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{
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if (miInstalledMaps[pScreen->myNum]) {
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*pmaps = miInstalledMaps[pScreen->myNum]->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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_X_EXPORT void
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miInstallColormap(ColormapPtr pmap)
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{
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int index = pmap->pScreen->myNum;
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ColormapPtr oldpmap = miInstalledMaps[index];
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if(pmap != oldpmap)
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{
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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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miInstalledMaps[index] = pmap;
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WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
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}
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}
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_X_EXPORT void
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miUninstallColormap(ColormapPtr pmap)
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{
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int index = pmap->pScreen->myNum;
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ColormapPtr curpmap = miInstalledMaps[index];
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if(pmap == curpmap)
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{
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if (pmap->mid != pmap->pScreen->defColormap)
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{
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curpmap = (ColormapPtr) LookupIDByType(pmap->pScreen->defColormap,
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RT_COLORMAP);
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(*pmap->pScreen->InstallColormap)(curpmap);
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}
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}
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}
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_X_EXPORT 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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{
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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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{
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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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_X_EXPORT Bool
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miInitializeColormap(ColormapPtr pmap)
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{
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register unsigned i;
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register 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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{
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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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{
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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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{
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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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{
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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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{
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for(i = 0; i <= maxent; i++)
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{
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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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_X_EXPORT 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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register 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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register int pixel;
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register int nresult;
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register 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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{
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if (indefs->flags & DoRed)
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{
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red = indefs->pixel & pVisual->redMask;
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for (green = 0; green <= maxgreen; green += stepgreen)
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{
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for (blue = 0; blue <= maxblue; blue += stepblue)
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{
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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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{
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green = indefs->pixel & pVisual->greenMask;
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for (red = 0; red <= maxred; red += stepred)
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{
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for (blue = 0; blue <= maxblue; blue += stepblue)
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{
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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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{
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blue = indefs->pixel & pVisual->blueMask;
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for (red = 0; red <= maxred; red += stepred)
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{
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for (green = 0; green <= maxgreen; green += stepgreen)
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{
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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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_X_EXPORT Bool
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miCreateDefColormap(ScreenPtr pScreen)
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{
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/*
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* In the following sources PC X server vendors may want to delete
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* "_not_tog" from "#ifdef WIN32_not_tog"
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*/
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#ifdef WIN32_not_tog
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/*
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* these are the MS-Windows desktop colors, adjusted for X's 16-bit
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* color specifications.
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*/
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static xColorItem citems[] = {
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{ 0, 0, 0, 0, 0, 0 },
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{ 1, 0x8000, 0, 0, 0, 0 },
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{ 2, 0, 0x8000, 0, 0, 0 },
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{ 3, 0x8000, 0x8000, 0, 0, 0 },
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{ 4, 0, 0, 0x8000, 0, 0 },
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{ 5, 0x8000, 0, 0x8000, 0, 0 },
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{ 6, 0, 0x8000, 0x8000, 0, 0 },
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{ 7, 0xc000, 0xc000, 0xc000, 0, 0 },
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{ 8, 0xc000, 0xdc00, 0xc000, 0, 0 },
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{ 9, 0xa600, 0xca00, 0xf000, 0, 0 },
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{ 246, 0xff00, 0xfb00, 0xf000, 0, 0 },
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{ 247, 0xa000, 0xa000, 0xa400, 0, 0 },
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{ 248, 0x8000, 0x8000, 0x8000, 0, 0 },
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{ 249, 0xff00, 0, 0, 0, 0 },
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{ 250, 0, 0xff00, 0, 0, 0 },
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{ 251, 0xff00, 0xff00, 0, 0, 0 },
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{ 252, 0, 0, 0xff00, 0, 0 },
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{ 253, 0xff00, 0, 0xff00, 0, 0 },
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{ 254, 0, 0xff00, 0xff00, 0, 0 },
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{ 255, 0xff00, 0xff00, 0xff00, 0, 0 }
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};
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#define NUM_DESKTOP_COLORS sizeof citems / sizeof citems[0]
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int i;
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#else
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unsigned short zero = 0, ones = 0xFFFF;
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#endif
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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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for (pVisual = pScreen->visuals;
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pVisual->vid != pScreen->rootVisual;
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pVisual++)
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;
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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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#ifdef WIN32_not_tog
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for (i = 0; i < NUM_DESKTOP_COLORS; i++) {
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if (AllocColor (cmap,
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&citems[i].red, &citems[i].green, &citems[i].blue,
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&citems[i].pixel, 0) != Success)
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return FALSE;
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}
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#else
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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) !=
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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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#endif
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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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_X_EXPORT void
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miClearVisualTypes()
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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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xfree(v);
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}
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}
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_X_EXPORT 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 = (miVisualsPtr) xalloc (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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{
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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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_X_EXPORT 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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_X_EXPORT 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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_X_EXPORT 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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{
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d = screenInfo.formats[f].depth;
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if (!miVisualTypesSet (d))
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{
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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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_X_EXPORT 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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if (miInitVisualsProc)
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return miInitVisualsProc(visualp, depthp, nvisualp, ndepthp,
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rootDepthp, defaultVisp, sizes, bitsPerRGB,
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preferredVis);
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else
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return FALSE;
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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) return 0;
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s = 0;
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while (!(p & 1))
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{
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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
|
|
* the set which can be used with this version of cfb.
|
|
*/
|
|
|
|
static Bool
|
|
miDoInitVisuals(VisualPtr *visualp, DepthPtr *depthp, int *nvisualp,
|
|
int *ndepthp, int *rootDepthp, VisualID *defaultVisp,
|
|
unsigned long sizes, int bitsPerRGB, int preferredVis)
|
|
{
|
|
int i, j = 0, k;
|
|
VisualPtr visual;
|
|
DepthPtr depth;
|
|
VisualID *vid;
|
|
int d, b;
|
|
int f;
|
|
int ndepth, nvisual;
|
|
int nvtype;
|
|
int vtype;
|
|
miVisualsPtr visuals, nextVisuals;
|
|
int *preferredCVCs, *prefp;
|
|
int first_depth;
|
|
|
|
/* none specified, we'll guess from pixmap formats */
|
|
if (!miVisuals)
|
|
{
|
|
for (f = 0; f < screenInfo.numPixmapFormats; f++)
|
|
{
|
|
d = screenInfo.formats[f].depth;
|
|
b = screenInfo.formats[f].bitsPerPixel;
|
|
if (sizes & (1 << (b - 1)))
|
|
vtype = miGetDefaultVisualMask(d);
|
|
else
|
|
vtype = 0;
|
|
if (!miSetVisualTypes (d, vtype, bitsPerRGB, -1))
|
|
return FALSE;
|
|
}
|
|
}
|
|
nvisual = 0;
|
|
ndepth = 0;
|
|
for (visuals = miVisuals; visuals; visuals = nextVisuals)
|
|
{
|
|
nextVisuals = visuals->next;
|
|
ndepth++;
|
|
nvisual += visuals->count;
|
|
}
|
|
depth = (DepthPtr) xalloc (ndepth * sizeof (DepthRec));
|
|
visual = (VisualPtr) xalloc (nvisual * sizeof (VisualRec));
|
|
preferredCVCs = (int *)xalloc(ndepth * sizeof(int));
|
|
if (!depth || !visual || !preferredCVCs)
|
|
{
|
|
xfree (depth);
|
|
xfree (visual);
|
|
xfree (preferredCVCs);
|
|
return FALSE;
|
|
}
|
|
*depthp = depth;
|
|
*visualp = visual;
|
|
*ndepthp = ndepth;
|
|
*nvisualp = nvisual;
|
|
prefp = preferredCVCs;
|
|
for (visuals = miVisuals; visuals; visuals = nextVisuals)
|
|
{
|
|
nextVisuals = visuals->next;
|
|
d = visuals->depth;
|
|
vtype = visuals->visuals;
|
|
nvtype = visuals->count;
|
|
*prefp = visuals->preferredCVC;
|
|
prefp++;
|
|
vid = NULL;
|
|
if (nvtype)
|
|
{
|
|
vid = (VisualID *) xalloc (nvtype * sizeof (VisualID));
|
|
if (!vid) {
|
|
xfree(preferredCVCs);
|
|
return FALSE;
|
|
}
|
|
}
|
|
depth->depth = d;
|
|
depth->numVids = nvtype;
|
|
depth->vids = vid;
|
|
depth++;
|
|
for (i = 0; i < NUM_PRIORITY; i++) {
|
|
if (! (vtype & (1 << miVisualPriority[i])))
|
|
continue;
|
|
visual->class = miVisualPriority[i];
|
|
visual->bitsPerRGBValue = visuals->bitsPerRGB;
|
|
visual->ColormapEntries = 1 << d;
|
|
visual->nplanes = d;
|
|
visual->vid = *vid = FakeClientID (0);
|
|
switch (visual->class) {
|
|
case PseudoColor:
|
|
case GrayScale:
|
|
case StaticGray:
|
|
visual->redMask = 0;
|
|
visual->greenMask = 0;
|
|
visual->blueMask = 0;
|
|
visual->offsetRed = 0;
|
|
visual->offsetGreen = 0;
|
|
visual->offsetBlue = 0;
|
|
break;
|
|
case DirectColor:
|
|
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++;
|
|
}
|
|
xfree (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];
|
|
xfree(preferredCVCs);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
miResetInitVisuals()
|
|
{
|
|
miInitVisualsProc = miDoInitVisuals;
|
|
}
|
|
|