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xserver-multidpi/mi/micmap.c
Keith Packard 9838b7032e Introduce a consistent coding style 
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00

632 lines
19 KiB
C
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/*
* 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;
}
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