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Diffstat (limited to 'xorg-server/mi/micmap.c')
-rw-r--r--xorg-server/mi/micmap.c1338
1 files changed, 670 insertions, 668 deletions
diff --git a/xorg-server/mi/micmap.c b/xorg-server/mi/micmap.c
index 87d4248d0..7448ef8fd 100644
--- a/xorg-server/mi/micmap.c
+++ b/xorg-server/mi/micmap.c
@@ -1,668 +1,670 @@
-/*
- * Copyright (c) 1987, Oracle and/or its affiliates. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * This is based on cfbcmap.c. The functions here are useful independently
- * of cfb, which is the reason for including them here. How "mi" these
- * are may be debatable.
- */
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include "scrnintstr.h"
-#include "colormapst.h"
-#include "resource.h"
-#include "globals.h"
-#include "micmap.h"
-
-DevPrivateKeyRec micmapScrPrivateKeyRec;
-
-int
-miListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
-{
- if (GetInstalledmiColormap(pScreen)) {
- *pmaps = GetInstalledmiColormap(pScreen)->mid;
- return 1;
- }
- return 0;
-}
-
-void
-miInstallColormap(ColormapPtr pmap)
-{
- ColormapPtr oldpmap = GetInstalledmiColormap(pmap->pScreen);
-
- 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 */
- SetInstalledmiColormap(pmap->pScreen, pmap);
- WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
-
- }
-}
-
-void
-miUninstallColormap(ColormapPtr pmap)
-{
- ColormapPtr curpmap = GetInstalledmiColormap(pmap->pScreen);
-
- if(pmap == curpmap)
- {
- if (pmap->mid != pmap->pScreen->defColormap)
- {
- dixLookupResourceByType((pointer *)&curpmap,
- pmap->pScreen->defColormap,
- RT_COLORMAP, serverClient,
- DixUseAccess);
- (*pmap->pScreen->InstallColormap)(curpmap);
- }
- }
-}
-
-void
-miResolveColor(unsigned short *pred, unsigned short *pgreen,
- unsigned short *pblue, VisualPtr pVisual)
-{
- int shift = 16 - pVisual->bitsPerRGBValue;
- unsigned lim = (1 << pVisual->bitsPerRGBValue) - 1;
-
- if ((pVisual->class | DynamicClass) == GrayScale)
- {
- /* rescale to gray then rgb bits */
- *pred = (30L * *pred + 59L * *pgreen + 11L * *pblue) / 100;
- *pblue = *pgreen = *pred = ((*pred >> shift) * 65535) / lim;
- }
- else
- {
- /* rescale to rgb bits */
- *pred = ((*pred >> shift) * 65535) / lim;
- *pgreen = ((*pgreen >> shift) * 65535) / lim;
- *pblue = ((*pblue >> shift) * 65535) / lim;
- }
-}
-
-Bool
-miInitializeColormap(ColormapPtr pmap)
-{
- unsigned i;
- 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; \
-}
-
-int
-miExpandDirectColors(ColormapPtr pmap, int ndef, xColorItem *indefs,
- xColorItem *outdefs)
-{
- int red, green, blue;
- int maxred, maxgreen, maxblue;
- int stepred, stepgreen, stepblue;
- VisualPtr pVisual;
- int pixel;
- int nresult;
- 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
-miCreateDefColormap(ScreenPtr pScreen)
-{
-/*
- * In the following sources PC X server vendors may want to delete
- * "_not_tog" from "#ifdef WIN32_not_tog"
- */
-#ifdef WIN32_not_tog
- /*
- * these are the MS-Windows desktop colors, adjusted for X's 16-bit
- * color specifications.
- */
- static xColorItem citems[] = {
- { 0, 0, 0, 0, 0, 0 },
- { 1, 0x8000, 0, 0, 0, 0 },
- { 2, 0, 0x8000, 0, 0, 0 },
- { 3, 0x8000, 0x8000, 0, 0, 0 },
- { 4, 0, 0, 0x8000, 0, 0 },
- { 5, 0x8000, 0, 0x8000, 0, 0 },
- { 6, 0, 0x8000, 0x8000, 0, 0 },
- { 7, 0xc000, 0xc000, 0xc000, 0, 0 },
- { 8, 0xc000, 0xdc00, 0xc000, 0, 0 },
- { 9, 0xa600, 0xca00, 0xf000, 0, 0 },
- { 246, 0xff00, 0xfb00, 0xf000, 0, 0 },
- { 247, 0xa000, 0xa000, 0xa400, 0, 0 },
- { 248, 0x8000, 0x8000, 0x8000, 0, 0 },
- { 249, 0xff00, 0, 0, 0, 0 },
- { 250, 0, 0xff00, 0, 0, 0 },
- { 251, 0xff00, 0xff00, 0, 0, 0 },
- { 252, 0, 0, 0xff00, 0, 0 },
- { 253, 0xff00, 0, 0xff00, 0, 0 },
- { 254, 0, 0xff00, 0xff00, 0, 0 },
- { 255, 0xff00, 0xff00, 0xff00, 0, 0 }
- };
-#define NUM_DESKTOP_COLORS sizeof citems / sizeof citems[0]
- int i;
-#else
- unsigned short zero = 0, ones = 0xFFFF;
-#endif
- Pixel wp, bp;
- VisualPtr pVisual;
- ColormapPtr cmap;
- int alloctype;
-
- if (!dixRegisterPrivateKey(&micmapScrPrivateKeyRec, PRIVATE_SCREEN, 0))
- return FALSE;
-
- for (pVisual = pScreen->visuals;
- pVisual->vid != pScreen->rootVisual;
- pVisual++)
- ;
-
- if (pScreen->rootDepth == 1 || (pVisual->class & DynamicClass))
- alloctype = AllocNone;
- else
- alloctype = AllocAll;
-
- if (CreateColormap(pScreen->defColormap, pScreen, pVisual, &cmap,
- alloctype, 0) != Success)
- return FALSE;
-
- if (pScreen->rootDepth > 1) {
- wp = pScreen->whitePixel;
- bp = pScreen->blackPixel;
-#ifdef WIN32_not_tog
- for (i = 0; i < NUM_DESKTOP_COLORS; i++) {
- if (AllocColor (cmap,
- &citems[i].red, &citems[i].green, &citems[i].blue,
- &citems[i].pixel, 0) != Success)
- return FALSE;
- }
-#else
- 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;
-#endif
- }
-
- (*pScreen->InstallColormap)(cmap);
- return TRUE;
-}
-
-/*
- * Default true color bitmasks, should be overridden by
- * driver
- */
-
-#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))
-
-typedef struct _miVisuals {
- struct _miVisuals *next;
- int depth;
- int bitsPerRGB;
- int visuals;
- int count;
- int preferredCVC;
- Pixel redMask, greenMask, blueMask;
-} miVisualsRec, *miVisualsPtr;
-
-static int miVisualPriority[] = {
- PseudoColor, GrayScale, StaticColor, TrueColor, DirectColor, StaticGray
-};
-
-#define NUM_PRIORITY 6
-
-static miVisualsPtr miVisuals;
-
-void
-miClearVisualTypes(void)
-{
- miVisualsPtr v;
-
- while ((v = miVisuals)) {
- miVisuals = v->next;
- free(v);
- }
-}
-
-
-Bool
-miSetVisualTypesAndMasks(int depth, int visuals, int bitsPerRGB,
- int preferredCVC,
- Pixel redMask, Pixel greenMask, Pixel blueMask)
-{
- miVisualsPtr new, *prev, v;
- int count;
-
- new = malloc(sizeof *new);
- if (!new)
- return FALSE;
- if (!redMask || !greenMask || !blueMask)
- {
- redMask = _RM(depth);
- greenMask = _GM(depth);
- blueMask = _BM(depth);
- }
- new->next = 0;
- new->depth = depth;
- new->visuals = visuals;
- new->bitsPerRGB = bitsPerRGB;
- new->preferredCVC = preferredCVC;
- new->redMask = redMask;
- new->greenMask = greenMask;
- new->blueMask = blueMask;
- count = (visuals >> 1) & 033333333333;
- count = visuals - count - ((count >> 1) & 033333333333);
- count = (((count + (count >> 3)) & 030707070707) % 077); /* HAKMEM 169 */
- new->count = count;
- for (prev = &miVisuals; (v = *prev); prev = &v->next);
- *prev = new;
- return TRUE;
-}
-
-Bool
-miSetVisualTypes(int depth, int visuals, int bitsPerRGB, int preferredCVC)
-{
- return miSetVisualTypesAndMasks (depth, visuals, bitsPerRGB,
- preferredCVC, 0, 0, 0);
-}
-
-int
-miGetDefaultVisualMask(int depth)
-{
- if (depth > MAX_PSEUDO_DEPTH)
- return LARGE_VISUALS;
- else if (depth >= MIN_TRUE_DEPTH)
- return ALL_VISUALS;
- else if (depth == 1)
- return StaticGrayMask;
- else
- return SMALL_VISUALS;
-}
-
-static Bool
-miVisualTypesSet (int depth)
-{
- miVisualsPtr visuals;
-
- for (visuals = miVisuals; visuals; visuals = visuals->next)
- if (visuals->depth == depth)
- return TRUE;
- return FALSE;
-}
-
-Bool
-miSetPixmapDepths (void)
-{
- int d, f;
-
- /* Add any unlisted depths from the pixmap formats */
- for (f = 0; f < screenInfo.numPixmapFormats; f++)
- {
- d = screenInfo.formats[f].depth;
- if (!miVisualTypesSet (d))
- {
- if (!miSetVisualTypes (d, 0, 0, -1))
- return FALSE;
- }
- }
- return TRUE;
-}
-
-/*
- * Distance to least significant one bit
- */
-static int
-maskShift (Pixel p)
-{
- int s;
-
- if (!p) return 0;
- s = 0;
- while (!(p & 1))
- {
- s++;
- p >>= 1;
- }
- return s;
-}
-
-/*
- * Given a list of formats for a screen, create a list
- * of visuals and depths for the screen which corespond to
- * the set which can be used with this version of cfb.
- */
-
-Bool
-miInitVisuals(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 = malloc(ndepth * sizeof (DepthRec));
- visual = malloc(nvisual * sizeof (VisualRec));
- preferredCVCs = malloc(ndepth * sizeof(int));
- if (!depth || !visual || !preferredCVCs)
- {
- free(depth);
- free(visual);
- free(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 = malloc(nvtype * sizeof (VisualID));
- if (!vid) {
- free(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++;
- }
- 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;
-}
+/*
+ * Copyright (c) 1987, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * This is based on cfbcmap.c. The functions here are useful independently
+ * of cfb, which is the reason for including them here. How "mi" these
+ * are may be debatable.
+ */
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "scrnintstr.h"
+#include "colormapst.h"
+#include "resource.h"
+#include "globals.h"
+#include "micmap.h"
+
+DevPrivateKeyRec micmapScrPrivateKeyRec;
+
+int
+miListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
+{
+ if (GetInstalledmiColormap(pScreen)) {
+ *pmaps = GetInstalledmiColormap(pScreen)->mid;
+ return 1;
+ }
+ return 0;
+}
+
+void
+miInstallColormap(ColormapPtr pmap)
+{
+ ColormapPtr oldpmap = GetInstalledmiColormap(pmap->pScreen);
+
+ 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 */
+ SetInstalledmiColormap(pmap->pScreen, pmap);
+ WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
+
+ }
+}
+
+void
+miUninstallColormap(ColormapPtr pmap)
+{
+ ColormapPtr curpmap = GetInstalledmiColormap(pmap->pScreen);
+
+ if(pmap == curpmap)
+ {
+ if (pmap->mid != pmap->pScreen->defColormap)
+ {
+ dixLookupResourceByType((pointer *)&curpmap,
+ pmap->pScreen->defColormap,
+ RT_COLORMAP, serverClient,
+ DixUseAccess);
+ (*pmap->pScreen->InstallColormap)(curpmap);
+ }
+ }
+}
+
+void
+miResolveColor(unsigned short *pred, unsigned short *pgreen,
+ unsigned short *pblue, VisualPtr pVisual)
+{
+ int shift = 16 - pVisual->bitsPerRGBValue;
+ unsigned lim = (1 << pVisual->bitsPerRGBValue) - 1;
+
+ if ((pVisual->class | DynamicClass) == GrayScale)
+ {
+ /* rescale to gray then rgb bits */
+ *pred = (30L * *pred + 59L * *pgreen + 11L * *pblue) / 100;
+ *pblue = *pgreen = *pred = ((*pred >> shift) * 65535) / lim;
+ }
+ else
+ {
+ /* rescale to rgb bits */
+ *pred = ((*pred >> shift) * 65535) / lim;
+ *pgreen = ((*pgreen >> shift) * 65535) / lim;
+ *pblue = ((*pblue >> shift) * 65535) / lim;
+ }
+}
+
+Bool
+miInitializeColormap(ColormapPtr pmap)
+{
+ unsigned i;
+ 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; \
+}
+
+int
+miExpandDirectColors(ColormapPtr pmap, int ndef, xColorItem *indefs,
+ xColorItem *outdefs)
+{
+ int red, green, blue;
+ int maxred, maxgreen, maxblue;
+ int stepred, stepgreen, stepblue;
+ VisualPtr pVisual;
+ int pixel;
+ int nresult;
+ 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
+miCreateDefColormap(ScreenPtr pScreen)
+{
+/*
+ * In the following sources PC X server vendors may want to delete
+ * "_not_tog" from "#ifdef WIN32_not_tog"
+ */
+#ifdef WIN32_not_tog
+ /*
+ * these are the MS-Windows desktop colors, adjusted for X's 16-bit
+ * color specifications.
+ */
+ static xColorItem citems[] = {
+ { 0, 0, 0, 0, 0, 0 },
+ { 1, 0x8000, 0, 0, 0, 0 },
+ { 2, 0, 0x8000, 0, 0, 0 },
+ { 3, 0x8000, 0x8000, 0, 0, 0 },
+ { 4, 0, 0, 0x8000, 0, 0 },
+ { 5, 0x8000, 0, 0x8000, 0, 0 },
+ { 6, 0, 0x8000, 0x8000, 0, 0 },
+ { 7, 0xc000, 0xc000, 0xc000, 0, 0 },
+ { 8, 0xc000, 0xdc00, 0xc000, 0, 0 },
+ { 9, 0xa600, 0xca00, 0xf000, 0, 0 },
+ { 246, 0xff00, 0xfb00, 0xf000, 0, 0 },
+ { 247, 0xa000, 0xa000, 0xa400, 0, 0 },
+ { 248, 0x8000, 0x8000, 0x8000, 0, 0 },
+ { 249, 0xff00, 0, 0, 0, 0 },
+ { 250, 0, 0xff00, 0, 0, 0 },
+ { 251, 0xff00, 0xff00, 0, 0, 0 },
+ { 252, 0, 0, 0xff00, 0, 0 },
+ { 253, 0xff00, 0, 0xff00, 0, 0 },
+ { 254, 0, 0xff00, 0xff00, 0, 0 },
+ { 255, 0xff00, 0xff00, 0xff00, 0, 0 }
+ };
+#define NUM_DESKTOP_COLORS sizeof citems / sizeof citems[0]
+ int i;
+#else
+ unsigned short zero = 0, ones = 0xFFFF;
+#endif
+ Pixel wp, bp;
+ VisualPtr pVisual;
+ ColormapPtr cmap;
+ int alloctype;
+
+ if (!dixRegisterPrivateKey(&micmapScrPrivateKeyRec, PRIVATE_SCREEN, 0))
+ return FALSE;
+
+ for (pVisual = pScreen->visuals;
+ pVisual->vid != pScreen->rootVisual;
+ pVisual++)
+ ;
+
+ if (pScreen->rootDepth == 1 || (pVisual->class & DynamicClass))
+ alloctype = AllocNone;
+ else
+ alloctype = AllocAll;
+
+ if (CreateColormap(pScreen->defColormap, pScreen, pVisual, &cmap,
+ alloctype, 0) != Success)
+ return FALSE;
+
+ if (pScreen->rootDepth > 1) {
+ wp = pScreen->whitePixel;
+ bp = pScreen->blackPixel;
+#ifdef WIN32_not_tog
+ for (i = 0; i < NUM_DESKTOP_COLORS; i++) {
+ if (AllocColor (cmap,
+ &citems[i].red, &citems[i].green, &citems[i].blue,
+ &citems[i].pixel, 0) != Success)
+ return FALSE;
+ }
+#else
+ 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;
+#endif
+ }
+
+ (*pScreen->InstallColormap)(cmap);
+ return TRUE;
+}
+
+/*
+ * Default true color bitmasks, should be overridden by
+ * driver
+ */
+
+#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))
+
+typedef struct _miVisuals {
+ struct _miVisuals *next;
+ int depth;
+ int bitsPerRGB;
+ int visuals;
+ int count;
+ int preferredCVC;
+ Pixel redMask, greenMask, blueMask;
+} miVisualsRec, *miVisualsPtr;
+
+static int miVisualPriority[] = {
+ PseudoColor, GrayScale, StaticColor, TrueColor, DirectColor, StaticGray
+};
+
+#define NUM_PRIORITY 6
+
+static miVisualsPtr miVisuals;
+
+void
+miClearVisualTypes(void)
+{
+ miVisualsPtr v;
+
+ while ((v = miVisuals)) {
+ miVisuals = v->next;
+ free(v);
+ }
+}
+
+
+Bool
+miSetVisualTypesAndMasks(int depth, int visuals, int bitsPerRGB,
+ int preferredCVC,
+ Pixel redMask, Pixel greenMask, Pixel blueMask)
+{
+ miVisualsPtr new, *prev, v;
+ int count;
+
+ new = malloc(sizeof *new);
+ if (!new)
+ return FALSE;
+ if (!redMask || !greenMask || !blueMask)
+ {
+ redMask = _RM(depth);
+ greenMask = _GM(depth);
+ blueMask = _BM(depth);
+ }
+ new->next = 0;
+ new->depth = depth;
+ new->visuals = visuals;
+ new->bitsPerRGB = bitsPerRGB;
+ new->preferredCVC = preferredCVC;
+ new->redMask = redMask;
+ new->greenMask = greenMask;
+ new->blueMask = blueMask;
+ count = (visuals >> 1) & 033333333333;
+ count = visuals - count - ((count >> 1) & 033333333333);
+ count = (((count + (count >> 3)) & 030707070707) % 077); /* HAKMEM 169 */
+ new->count = count;
+ for (prev = &miVisuals; (v = *prev); prev = &v->next);
+ *prev = new;
+ return TRUE;
+}
+
+Bool
+miSetVisualTypes(int depth, int visuals, int bitsPerRGB, int preferredCVC)
+{
+ return miSetVisualTypesAndMasks (depth, visuals, bitsPerRGB,
+ preferredCVC, 0, 0, 0);
+}
+
+int
+miGetDefaultVisualMask(int depth)
+{
+ if (depth > MAX_PSEUDO_DEPTH)
+ return LARGE_VISUALS;
+ else if (depth >= MIN_TRUE_DEPTH)
+ return ALL_VISUALS;
+ else if (depth == 1)
+ return StaticGrayMask;
+ else
+ return SMALL_VISUALS;
+}
+
+static Bool
+miVisualTypesSet (int depth)
+{
+ miVisualsPtr visuals;
+
+ for (visuals = miVisuals; visuals; visuals = visuals->next)
+ if (visuals->depth == depth)
+ return TRUE;
+ return FALSE;
+}
+
+Bool
+miSetPixmapDepths (void)
+{
+ int d, f;
+
+ /* Add any unlisted depths from the pixmap formats */
+ for (f = 0; f < screenInfo.numPixmapFormats; f++)
+ {
+ d = screenInfo.formats[f].depth;
+ if (!miVisualTypesSet (d))
+ {
+ if (!miSetVisualTypes (d, 0, 0, -1))
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+/*
+ * Distance to least significant one bit
+ */
+static int
+maskShift (Pixel p)
+{
+ int s;
+
+ if (!p) return 0;
+ s = 0;
+ while (!(p & 1))
+ {
+ s++;
+ p >>= 1;
+ }
+ return s;
+}
+
+/*
+ * Given a list of formats for a screen, create a list
+ * of visuals and depths for the screen which corespond to
+ * the set which can be used with this version of cfb.
+ */
+
+Bool
+miInitVisuals(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 = malloc(ndepth * sizeof (DepthRec));
+ visual = malloc(nvisual * sizeof (VisualRec));
+ preferredCVCs = malloc(ndepth * sizeof(int));
+ if (!depth || !visual || !preferredCVCs)
+ {
+ free(depth);
+ free(visual);
+ free(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 = malloc(nvtype * sizeof (VisualID));
+ if (!vid) {
+ free(depth);
+ free(visual);
+ free(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++;
+ }
+ 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 04:13:54 +0000