+++ /dev/null
-/* $XConsortium: cfbcmap.c,v 4.19 94/04/17 20:28:46 dpw Exp $ */
-/* $XFree86: xc/programs/Xserver/cfb/cfbcmap.c,v 3.1.8.2 1997/05/11 05:04:17 dawes Exp $ */
-/************************************************************
-Copyright 1987 by Sun Microsystems, Inc. Mountain View, CA.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this
-software and its documentation for any purpose and without
-fee is hereby granted, provided that the above copyright no-
-tice appear in all copies and that both that copyright no-
-tice and this permission notice appear in supporting docu-
-mentation, and that the names of Sun or X Consortium
-not be used in advertising or publicity pertaining to
-distribution of the software without specific prior
-written permission. Sun and X Consortium make no
-representations about the suitability of this software for
-any purpose. It is provided "as is" without any express or
-implied warranty.
-
-SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
-INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
-NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE LI-
-ABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
-PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
-OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
-THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-********************************************************/
-
-
-#include "X.h"
-#include "Xproto.h"
-#include "scrnintstr.h"
-#include "colormapst.h"
-#include "resource.h"
-
-#ifdef GLXEXT
-#ifdef GLX_MODULE
-Bool (*GlxInitVisualsPtr)(
-#else
-extern Bool GlxInitVisuals(
-#endif
-#if NeedFunctionPrototypes
- VisualPtr * /*visualp*/,
- DepthPtr * /*depthp*/,
- int * /*nvisualp*/,
- int * /*ndepthp*/,
- int * /*rootDepthp*/,
- VisualID * /*defaultVisp*/,
- unsigned long /*sizes*/,
- int /*bitsPerRGB*/
-#endif
-#ifdef GLX_MODULE
-) = NULL;
-#else
-);
-#endif
-#endif
-
-#ifdef STATIC_COLOR
-
-static ColormapPtr InstalledMaps[MAXSCREENS];
-
-int
-cfbListInstalledColormaps(pScreen, pmaps)
- ScreenPtr pScreen;
- Colormap *pmaps;
-{
- /* By the time we are processing requests, we can guarantee that there
- * is always a colormap installed */
- *pmaps = InstalledMaps[pScreen->myNum]->mid;
- return (1);
-}
-
-
-void
-cfbInstallColormap(pmap)
- ColormapPtr pmap;
-{
- int index = pmap->pScreen->myNum;
- ColormapPtr oldpmap = InstalledMaps[index];
-
- if(pmap != oldpmap)
- {
- /* Uninstall pInstalledMap. No hardware changes required, just
- * notify all interested parties. */
- if(oldpmap != (ColormapPtr)None)
- WalkTree(pmap->pScreen, TellLostMap, (char *)&oldpmap->mid);
- /* Install pmap */
- InstalledMaps[index] = pmap;
- WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
-
- }
-}
-
-void
-cfbUninstallColormap(pmap)
- ColormapPtr pmap;
-{
- int index = pmap->pScreen->myNum;
- ColormapPtr curpmap = InstalledMaps[index];
-
- if(pmap == curpmap)
- {
- if (pmap->mid != pmap->pScreen->defColormap)
- {
- curpmap = (ColormapPtr) LookupIDByType(pmap->pScreen->defColormap,
- RT_COLORMAP);
- (*pmap->pScreen->InstallColormap)(curpmap);
- }
- }
-}
-
-#endif
-
-void
-cfbResolveColor(pred, pgreen, pblue, pVisual)
- unsigned short *pred, *pgreen, *pblue;
- register VisualPtr pVisual;
-{
- int shift = 16 - pVisual->bitsPerRGBValue;
- unsigned lim = (1 << pVisual->bitsPerRGBValue) - 1;
-
- if ((pVisual->class == PseudoColor) || (pVisual->class == DirectColor))
- {
- /* rescale to rgb bits */
- *pred = ((*pred >> shift) * 65535) / lim;
- *pgreen = ((*pgreen >> shift) * 65535) / lim;
- *pblue = ((*pblue >> shift) * 65535) / lim;
- }
- else if (pVisual->class == GrayScale)
- {
- /* rescale to gray then rgb bits */
- *pred = (30L * *pred + 59L * *pgreen + 11L * *pblue) / 100;
- *pblue = *pgreen = *pred = ((*pred >> shift) * 65535) / lim;
- }
- else if (pVisual->class == StaticGray)
- {
- unsigned limg = pVisual->ColormapEntries - 1;
- /* rescale to gray then [0..limg] then [0..65535] then rgb bits */
- *pred = (30L * *pred + 59L * *pgreen + 11L * *pblue) / 100;
- *pred = ((((*pred * (limg + 1))) >> 16) * 65535) / limg;
- *pblue = *pgreen = *pred = ((*pred >> shift) * 65535) / lim;
- }
- else
- {
- unsigned limr, limg, limb;
-
- limr = pVisual->redMask >> pVisual->offsetRed;
- limg = pVisual->greenMask >> pVisual->offsetGreen;
- limb = pVisual->blueMask >> pVisual->offsetBlue;
- /* rescale to [0..limN] then [0..65535] then rgb bits */
- *pred = ((((((*pred * (limr + 1)) >> 16) *
- 65535) / limr) >> shift) * 65535) / lim;
- *pgreen = ((((((*pgreen * (limg + 1)) >> 16) *
- 65535) / limg) >> shift) * 65535) / lim;
- *pblue = ((((((*pblue * (limb + 1)) >> 16) *
- 65535) / limb) >> shift) * 65535) / lim;
- }
-}
-
-Bool
-cfbInitializeColormap(pmap)
- register ColormapPtr pmap;
-{
- register unsigned i;
- register VisualPtr pVisual;
- unsigned lim, maxent, shift;
-
- pVisual = pmap->pVisual;
- lim = (1 << pVisual->bitsPerRGBValue) - 1;
- shift = 16 - pVisual->bitsPerRGBValue;
- maxent = pVisual->ColormapEntries - 1;
- if (pVisual->class == TrueColor)
- {
- unsigned limr, limg, limb;
-
- limr = pVisual->redMask >> pVisual->offsetRed;
- limg = pVisual->greenMask >> pVisual->offsetGreen;
- limb = pVisual->blueMask >> pVisual->offsetBlue;
- for(i = 0; i <= maxent; i++)
- {
- /* rescale to [0..65535] then rgb bits */
- pmap->red[i].co.local.red =
- ((((i * 65535) / limr) >> shift) * 65535) / lim;
- pmap->green[i].co.local.green =
- ((((i * 65535) / limg) >> shift) * 65535) / lim;
- pmap->blue[i].co.local.blue =
- ((((i * 65535) / limb) >> shift) * 65535) / lim;
- }
- }
- else if (pVisual->class == StaticColor)
- {
- unsigned limr, limg, limb;
-
- limr = pVisual->redMask >> pVisual->offsetRed;
- limg = pVisual->greenMask >> pVisual->offsetGreen;
- limb = pVisual->blueMask >> pVisual->offsetBlue;
- for(i = 0; i <= maxent; i++)
- {
- /* rescale to [0..65535] then rgb bits */
- pmap->red[i].co.local.red =
- ((((((i & pVisual->redMask) >> pVisual->offsetRed)
- * 65535) / limr) >> shift) * 65535) / lim;
- pmap->red[i].co.local.green =
- ((((((i & pVisual->greenMask) >> pVisual->offsetGreen)
- * 65535) / limg) >> shift) * 65535) / lim;
- pmap->red[i].co.local.blue =
- ((((((i & pVisual->blueMask) >> pVisual->offsetBlue)
- * 65535) / limb) >> shift) * 65535) / lim;
- }
- }
- else if (pVisual->class == StaticGray)
- {
- for(i = 0; i <= maxent; i++)
- {
- /* rescale to [0..65535] then rgb bits */
- pmap->red[i].co.local.red = ((((i * 65535) / maxent) >> shift)
- * 65535) / lim;
- pmap->red[i].co.local.green = pmap->red[i].co.local.red;
- pmap->red[i].co.local.blue = pmap->red[i].co.local.red;
- }
- }
- return TRUE;
-}
-
-/* When simulating DirectColor on PseudoColor hardware, multiple
- entries of the colormap must be updated
- */
-
-#define AddElement(mask) { \
- pixel = red | green | blue; \
- for (i = 0; i < nresult; i++) \
- if (outdefs[i].pixel == pixel) \
- break; \
- if (i == nresult) \
- { \
- nresult++; \
- outdefs[i].pixel = pixel; \
- outdefs[i].flags = 0; \
- } \
- outdefs[i].flags |= (mask); \
- outdefs[i].red = pmap->red[red >> pVisual->offsetRed].co.local.red; \
- outdefs[i].green = pmap->green[green >> pVisual->offsetGreen].co.local.green; \
- outdefs[i].blue = pmap->blue[blue >> pVisual->offsetBlue].co.local.blue; \
-}
-
-cfbExpandDirectColors (pmap, ndef, indefs, outdefs)
- ColormapPtr pmap;
- int ndef;
- xColorItem *indefs, *outdefs;
-{
- int minred, mingreen, minblue;
- register int red, green, blue;
- int maxred, maxgreen, maxblue;
- int stepred, stepgreen, stepblue;
- VisualPtr pVisual;
- register int pixel;
- register int nresult;
- register int i;
-
- pVisual = pmap->pVisual;
-
- stepred = 1 << pVisual->offsetRed;
- stepgreen = 1 << pVisual->offsetGreen;
- stepblue = 1 << pVisual->offsetBlue;
- maxred = pVisual->redMask;
- maxgreen = pVisual->greenMask;
- maxblue = pVisual->blueMask;
- nresult = 0;
- for (;ndef--; indefs++)
- {
- if (indefs->flags & DoRed)
- {
- red = indefs->pixel & pVisual->redMask;
- for (green = 0; green <= maxgreen; green += stepgreen)
- {
- for (blue = 0; blue <= maxblue; blue += stepblue)
- {
- AddElement (DoRed)
- }
- }
- }
- if (indefs->flags & DoGreen)
- {
- green = indefs->pixel & pVisual->greenMask;
- for (red = 0; red <= maxred; red += stepred)
- {
- for (blue = 0; blue <= maxblue; blue += stepblue)
- {
- AddElement (DoGreen)
- }
- }
- }
- if (indefs->flags & DoBlue)
- {
- blue = indefs->pixel & pVisual->blueMask;
- for (red = 0; red <= maxred; red += stepred)
- {
- for (green = 0; green <= maxgreen; green += stepgreen)
- {
- AddElement (DoBlue)
- }
- }
- }
- }
- return nresult;
-}
-
-Bool
-cfbCreateDefColormap(pScreen)
- ScreenPtr pScreen;
-{
- unsigned short zero = 0, ones = 0xFFFF;
- VisualPtr pVisual;
- ColormapPtr cmap;
- Pixel wp, bp;
-
- for (pVisual = pScreen->visuals;
- pVisual->vid != pScreen->rootVisual;
- pVisual++)
- ;
-
- if (CreateColormap(pScreen->defColormap, pScreen, pVisual, &cmap,
- (pVisual->class & DynamicClass) ? AllocNone : AllocAll,
- 0)
- != Success)
- return FALSE;
- wp = pScreen->whitePixel;
- bp = pScreen->blackPixel;
- if ((AllocColor(cmap, &ones, &ones, &ones, &wp, 0) !=
- Success) ||
- (AllocColor(cmap, &zero, &zero, &zero, &bp, 0) !=
- Success))
- return FALSE;
- pScreen->whitePixel = wp;
- pScreen->blackPixel = bp;
- (*pScreen->InstallColormap)(cmap);
- return TRUE;
-}
-
-extern int defaultColorVisualClass;
-
-#define _RZ(d) ((d + 2) / 3)
-#define _RS(d) 0
-#define _RM(d) ((1 << _RZ(d)) - 1)
-#define _GZ(d) ((d - _RZ(d) + 1) / 2)
-#define _GS(d) _RZ(d)
-#define _GM(d) (((1 << _GZ(d)) - 1) << _GS(d))
-#define _BZ(d) (d - _RZ(d) - _GZ(d))
-#define _BS(d) (_RZ(d) + _GZ(d))
-#define _BM(d) (((1 << _BZ(d)) - 1) << _BS(d))
-#define _CE(d) (1 << _RZ(d))
-
-#define MAX_PSEUDO_DEPTH 10 /* largest DAC size I know */
-
-#define StaticGrayMask (1 << StaticGray)
-#define GrayScaleMask (1 << GrayScale)
-#define StaticColorMask (1 << StaticColor)
-#define PseudoColorMask (1 << PseudoColor)
-#define TrueColorMask (1 << TrueColor)
-#define DirectColorMask (1 << DirectColor)
-
-#define ALL_VISUALS (StaticGrayMask|\
- GrayScaleMask|\
- StaticColorMask|\
- PseudoColorMask|\
- TrueColorMask|\
- DirectColorMask)
-
-#define LARGE_VISUALS (TrueColorMask|\
- DirectColorMask)
-
-typedef struct _cfbVisuals {
- struct _cfbVisuals *next;
- int depth;
- int bitsPerRGB;
- int visuals;
- int count;
-} cfbVisualsRec, *cfbVisualsPtr;
-
-static int cfbVisualPriority[] = {
- PseudoColor, DirectColor, GrayScale, StaticColor, TrueColor, StaticGray
-};
-
-#define NUM_PRIORITY 6
-
-static cfbVisualsPtr cfbVisuals;
-
-Bool
-cfbSetVisualTypes (depth, visuals, bitsPerRGB)
- int depth;
- int visuals;
-{
- cfbVisualsPtr new, *prev, v;
- int count;
-
- new = (cfbVisualsPtr) xalloc (sizeof *new);
- if (!new)
- return FALSE;
- new->next = 0;
- new->depth = depth;
- new->visuals = visuals;
- new->bitsPerRGB = bitsPerRGB;
- count = (visuals >> 1) & 033333333333;
- count = visuals - count - ((count >> 1) & 033333333333);
- count = (((count + (count >> 3)) & 030707070707) % 077); /* HAKMEM 169 */
- new->count = count;
- for (prev = &cfbVisuals; v = *prev; prev = &v->next);
- *prev = new;
- return TRUE;
-}
-
-/*
- * Given a list of formats for a screen, create a list
- * of visuals and depths for the screen which coorespond to
- * the set which can be used with this version of cfb.
- */
-
-Bool
-cfbInitVisuals (visualp, depthp, nvisualp, ndepthp, rootDepthp, defaultVisp, sizes, bitsPerRGB)
- VisualPtr *visualp;
- DepthPtr *depthp;
- int *nvisualp, *ndepthp;
- int *rootDepthp;
- VisualID *defaultVisp;
- unsigned long sizes;
- int bitsPerRGB;
-{
- int i, j, k;
- VisualPtr visual;
- DepthPtr depth;
- VisualID *vid;
- int d, b;
- int f;
- int ndepth, nvisual;
- int nvtype;
- int vtype;
- VisualID defaultVisual;
- cfbVisualsPtr visuals, nextVisuals;
-
- /* none specified, we'll guess from pixmap formats */
- if (!cfbVisuals)
- {
- for (f = 0; f < screenInfo.numPixmapFormats; f++)
- {
- d = screenInfo.formats[f].depth;
- b = screenInfo.formats[f].bitsPerPixel;
- if (sizes & (1 << (b - 1)))
- {
- if (d > MAX_PSEUDO_DEPTH)
- vtype = LARGE_VISUALS;
- else if (d == 1)
- vtype = StaticGrayMask;
- else
- vtype = ALL_VISUALS;
- }
- else
- vtype = 0;
- if (!cfbSetVisualTypes (d, vtype, bitsPerRGB))
- return FALSE;
- }
- }
- nvisual = 0;
- ndepth = 0;
- for (visuals = cfbVisuals; visuals; visuals = nextVisuals)
- {
- nextVisuals = visuals->next;
- ndepth++;
- nvisual += visuals->count;
- }
- depth = (DepthPtr) xalloc (ndepth * sizeof (DepthRec));
- visual = (VisualPtr) xalloc (nvisual * sizeof (VisualRec));
- if (!depth || !visual)
- {
- xfree (depth);
- xfree (visual);
- return FALSE;
- }
- *depthp = depth;
- *visualp = visual;
- *ndepthp = ndepth;
- *nvisualp = nvisual;
- for (visuals = cfbVisuals; visuals; visuals = nextVisuals)
- {
- nextVisuals = visuals->next;
- d = visuals->depth;
- vtype = visuals->visuals;
- nvtype = visuals->count;
- vid = NULL;
- if (nvtype)
- {
- vid = (VisualID *) xalloc (nvtype * sizeof (VisualID));
- if (!vid)
- return FALSE;
- }
- depth->depth = d;
- depth->numVids = nvtype;
- depth->vids = vid;
- depth++;
- for (i = 0; i < NUM_PRIORITY; i++) {
- if (! (vtype & (1 << cfbVisualPriority[i])))
- continue;
- visual->class = cfbVisualPriority[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 = _RM(d);
- visual->greenMask = _GM(d);
- visual->blueMask = _BM(d);
- visual->offsetRed = _RS(d);
- visual->offsetGreen = _GS(d);
- visual->offsetBlue = _BS(d);
- }
- vid++;
- visual++;
- }
- xfree (visuals);
- }
- cfbVisuals = NULL;
- visual = *visualp;
- depth = *depthp;
- for (i = 0; i < ndepth; 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 (defaultColorVisualClass < 0 ||
- visual[k].class == defaultColorVisualClass)
- break;
- }
- if (j != depth[i].numVids)
- break;
- }
- if (i == ndepth) {
- i = 0;
- j = 0;
- }
- *rootDepthp = depth[i].depth;
- *defaultVisp = depth[i].vids[j];
-
-#ifdef GLXEXT
-#ifdef GLX_MODULE
- if( GlxInitVisualsPtr != NULL )
- return (*GlxInitVisualsPtr)
-#else
- return GlxInitVisuals
-#endif
- (
- visualp,
- depthp,
- nvisualp,
- ndepthp,
- rootDepthp,
- defaultVisp,
- sizes,
- bitsPerRGB
- );
-#else
- return TRUE;
-#endif
-
-}
projects / rdpsrv / blobdiff