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New upstream version 3.5.99.27

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geos_one
2025-08-08 20:00:36 +02:00
commit bc8d10cc33
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66
nx-X11/programs/Xserver/render/Imakefile Normal file
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NULL =
#include <Server.tmpl>
#if (!(defined(NXAgentServer) && NXAgentServer))
NXAGENT_SKIP_SRCS = \
glyph.c \
mitrap.c \
picture.c \
render.c \
$(NULL)
NXAGENT_SKIP_OBJS = \
glyph.o \
mitrap.o \
picture.o \
render.o \
$(NULL)
#else
NX_DEFINES = -DNXAGENT_SERVER
#endif
SRCS = animcur.c \
filter.c \
glyph.c \
matrix.c \
miindex.c \
mipict.c \
mirect.c \
mitri.c \
renderedge.c \
$(NXAGENT_SKIP_SRCS) \
$(NULL)
OBJS = animcur.o \
filter.o \
glyph.o \
matrix.o \
miindex.o \
mipict.o \
mirect.o \
mitri.o \
renderedge.o \
$(NXAGENT_SKIP_OBJS) \
$(NULL)
INCLUDES = -I. -I../include -I../mi \
-I../fb -I$(EXTINCSRC) -I$(XINCLUDESRC) \
-I../Xext \
`pkg-config --cflags-only-I pixman-1`
LINTLIBS = ../dix/llib-ldix.ln ../os/llib-los.ln
DEFINES = \
$(NX_DEFINES) \
$(NULL)
NormalLibraryTarget(render,$(OBJS))
NormalLibraryObjectRule()
LintLibraryTarget(render,$(SRCS))
NormalLintTarget($(SRCS))
DependTarget()
InstallDriverSDKNonExecFile(glyphstr.h,$(DRIVERSDKINCLUDEDIR))
InstallDriverSDKNonExecFile(mipict.h,$(DRIVERSDKINCLUDEDIR))
InstallDriverSDKNonExecFile(picture.h,$(DRIVERSDKINCLUDEDIR))
InstallDriverSDKNonExecFile(picturestr.h,$(DRIVERSDKINCLUDEDIR))

400
nx-X11/programs/Xserver/render/animcur.c Normal file
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/*
* Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
/*
* Animated cursors for X. Not specific to Render in any way, but
* stuck there because Render has the other cool cursor extension.
* Besides, everyone has Render.
*
* Implemented as a simple layer over the core cursor code; it
* creates composite cursors out of a set of static cursors and
* delta times between each image.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <nx-X11/X.h>
#include <nx-X11/Xmd.h>
#include "servermd.h"
#include "scrnintstr.h"
#include "dixstruct.h"
#include "cursorstr.h"
#include "dixfontstr.h"
#include "opaque.h"
#include "picturestr.h"
typedef struct _AnimCurElt {
CursorPtr pCursor; /* cursor to show */
CARD32 delay; /* in ms */
} AnimCurElt;
typedef struct _AnimCur {
int nelt; /* number of elements in the elts array */
AnimCurElt *elts; /* actually allocated right after the structure */
} AnimCurRec, *AnimCurPtr;
typedef struct _AnimScrPriv {
CursorPtr pCursor;
int elt;
CARD32 time;
CloseScreenProcPtr CloseScreen;
ScreenBlockHandlerProcPtr BlockHandler;
CursorLimitsProcPtr CursorLimits;
DisplayCursorProcPtr DisplayCursor;
SetCursorPositionProcPtr SetCursorPosition;
RealizeCursorProcPtr RealizeCursor;
UnrealizeCursorProcPtr UnrealizeCursor;
RecolorCursorProcPtr RecolorCursor;
} AnimCurScreenRec, *AnimCurScreenPtr;
typedef struct _AnimCurState {
CursorPtr pCursor;
ScreenPtr pScreen;
int elt;
CARD32 time;
} AnimCurStateRec, *AnimCurStatePtr;
static AnimCurStateRec animCurState;
static unsigned char empty[4];
static CursorBits animCursorBits = {
empty, empty, 2, 1, 1, 0, 0, 1
};
int AnimCurScreenPrivateIndex = -1;
int AnimCurGeneration;
#define IsAnimCur(c) ((c)->bits == &animCursorBits)
#define GetAnimCur(c) ((AnimCurPtr) ((c) + 1))
#define GetAnimCurScreen(s) ((AnimCurScreenPtr) ((s)->devPrivates[AnimCurScreenPrivateIndex].ptr))
#define GetAnimCurScreenIfSet(s) ((AnimCurScreenPrivateIndex != -1) ? GetAnimCurScreen(s) : NULL)
#define SetAnimCurScreen(s,p) ((s)->devPrivates[AnimCurScreenPrivateIndex].ptr = (void *) (p))
#define Wrap(as,s,elt,func) (((as)->elt = (s)->elt), (s)->elt = func)
#define Unwrap(as,s,elt) ((s)->elt = (as)->elt)
static Bool
AnimCurDisplayCursor (ScreenPtr pScreen,
CursorPtr pCursor);
static Bool
AnimCurSetCursorPosition (ScreenPtr pScreen,
int x,
int y,
Bool generateEvent);
static Bool
AnimCurCloseScreen (ScreenPtr pScreen)
{
AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
Bool ret;
Unwrap(as, pScreen, CloseScreen);
Unwrap(as, pScreen, BlockHandler);
Unwrap(as, pScreen, CursorLimits);
Unwrap(as, pScreen, DisplayCursor);
Unwrap(as, pScreen, SetCursorPosition);
Unwrap(as, pScreen, RealizeCursor);
Unwrap(as, pScreen, UnrealizeCursor);
Unwrap(as, pScreen, RecolorCursor);
SetAnimCurScreen(pScreen,0);
ret = (*pScreen->CloseScreen) (pScreen);
free (as);
if (screenInfo.numScreens <= 1)
AnimCurScreenPrivateIndex = -1;
return ret;
}
static void
AnimCurCursorLimits (ScreenPtr pScreen,
CursorPtr pCursor,
BoxPtr pHotBox,
BoxPtr pTopLeftBox)
{
AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
Unwrap (as, pScreen, CursorLimits);
if (IsAnimCur(pCursor))
{
AnimCurPtr ac = GetAnimCur(pCursor);
(*pScreen->CursorLimits) (pScreen, ac->elts[0].pCursor, pHotBox, pTopLeftBox);
}
else
{
(*pScreen->CursorLimits) (pScreen, pCursor, pHotBox, pTopLeftBox);
}
Wrap (as, pScreen, CursorLimits, AnimCurCursorLimits);
}
/*
* This has to be a screen block handler instead of a generic
* block handler so that it is well ordered with respect to the DRI
* block handler responsible for releasing the hardware to DRI clients
*/
static void
AnimCurScreenBlockHandler (int screenNum,
void * blockData,
void * pTimeout,
void * pReadmask)
{
ScreenPtr pScreen = screenInfo.screens[screenNum];
AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
if (pScreen == animCurState.pScreen)
{
CARD32 now = GetTimeInMillis ();
if ((INT32) (now - animCurState.time) >= 0)
{
AnimCurPtr ac = GetAnimCur(animCurState.pCursor);
int elt = (animCurState.elt + 1) % ac->nelt;
DisplayCursorProcPtr DisplayCursor;
/*
* Not a simple Unwrap/Wrap as this
* isn't called along the DisplayCursor
* wrapper chain.
*/
DisplayCursor = pScreen->DisplayCursor;
pScreen->DisplayCursor = as->DisplayCursor;
(void) (*pScreen->DisplayCursor) (pScreen, ac->elts[elt].pCursor);
as->DisplayCursor = pScreen->DisplayCursor;
pScreen->DisplayCursor = DisplayCursor;
animCurState.elt = elt;
animCurState.time = now + ac->elts[elt].delay;
}
AdjustWaitForDelay (pTimeout, animCurState.time - now);
}
Unwrap (as, pScreen, BlockHandler);
(*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
Wrap (as, pScreen, BlockHandler, AnimCurScreenBlockHandler);
}
static Bool
AnimCurDisplayCursor (ScreenPtr pScreen,
CursorPtr pCursor)
{
AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
Bool ret;
Unwrap (as, pScreen, DisplayCursor);
if (IsAnimCur(pCursor))
{
if (pCursor != animCurState.pCursor)
{
AnimCurPtr ac = GetAnimCur(pCursor);
ret = (*pScreen->DisplayCursor) (pScreen, ac->elts[0].pCursor);
if (ret)
{
animCurState.elt = 0;
animCurState.time = GetTimeInMillis () + ac->elts[0].delay;
animCurState.pCursor = pCursor;
animCurState.pScreen = pScreen;
}
}
else
ret = TRUE;
}
else
{
animCurState.pCursor = 0;
animCurState.pScreen = 0;
ret = (*pScreen->DisplayCursor) (pScreen, pCursor);
}
Wrap (as, pScreen, DisplayCursor, AnimCurDisplayCursor);
return ret;
}
static Bool
AnimCurSetCursorPosition (ScreenPtr pScreen,
int x,
int y,
Bool generateEvent)
{
AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
Bool ret;
Unwrap (as, pScreen, SetCursorPosition);
if (animCurState.pCursor)
animCurState.pScreen = pScreen;
ret = (*pScreen->SetCursorPosition) (pScreen, x, y, generateEvent);
Wrap (as, pScreen, SetCursorPosition, AnimCurSetCursorPosition);
return ret;
}
static Bool
AnimCurRealizeCursor (ScreenPtr pScreen,
CursorPtr pCursor)
{
AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
Bool ret;
Unwrap (as, pScreen, RealizeCursor);
if (IsAnimCur(pCursor))
ret = TRUE;
else
ret = (*pScreen->RealizeCursor) (pScreen, pCursor);
Wrap (as, pScreen, RealizeCursor, AnimCurRealizeCursor);
return ret;
}
static Bool
AnimCurUnrealizeCursor (ScreenPtr pScreen,
CursorPtr pCursor)
{
AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
Bool ret;
Unwrap (as, pScreen, UnrealizeCursor);
if (IsAnimCur(pCursor))
{
AnimCurPtr ac = GetAnimCur(pCursor);
int i;
if (pScreen->myNum == 0)
for (i = 0; i < ac->nelt; i++)
FreeCursor (ac->elts[i].pCursor, 0);
ret = TRUE;
}
else
ret = (*pScreen->UnrealizeCursor) (pScreen, pCursor);
Wrap (as, pScreen, UnrealizeCursor, AnimCurUnrealizeCursor);
return ret;
}
static void
AnimCurRecolorCursor (ScreenPtr pScreen,
CursorPtr pCursor,
Bool displayed)
{
AnimCurScreenPtr as = GetAnimCurScreen(pScreen);
Unwrap (as, pScreen, RecolorCursor);
if (IsAnimCur(pCursor))
{
AnimCurPtr ac = GetAnimCur(pCursor);
int i;
for (i = 0; i < ac->nelt; i++)
(*pScreen->RecolorCursor) (pScreen, ac->elts[i].pCursor,
displayed &&
animCurState.elt == i);
}
else
(*pScreen->RecolorCursor) (pScreen, pCursor, displayed);
Wrap (as, pScreen, RecolorCursor, AnimCurRecolorCursor);
}
Bool
AnimCurInit (ScreenPtr pScreen)
{
AnimCurScreenPtr as;
if (AnimCurGeneration != serverGeneration)
{
AnimCurScreenPrivateIndex = AllocateScreenPrivateIndex ();
if (AnimCurScreenPrivateIndex < 0)
return FALSE;
AnimCurGeneration = serverGeneration;
animCurState.pCursor = 0;
animCurState.pScreen = 0;
animCurState.elt = 0;
animCurState.time = 0;
}
as = (AnimCurScreenPtr) malloc (sizeof (AnimCurScreenRec));
if (!as)
return FALSE;
Wrap(as, pScreen, CloseScreen, AnimCurCloseScreen);
Wrap(as, pScreen, BlockHandler, AnimCurScreenBlockHandler);
Wrap(as, pScreen, CursorLimits, AnimCurCursorLimits);
Wrap(as, pScreen, DisplayCursor, AnimCurDisplayCursor);
Wrap(as, pScreen, SetCursorPosition, AnimCurSetCursorPosition);
Wrap(as, pScreen, RealizeCursor, AnimCurRealizeCursor);
Wrap(as, pScreen, UnrealizeCursor, AnimCurUnrealizeCursor);
Wrap(as, pScreen, RecolorCursor, AnimCurRecolorCursor);
SetAnimCurScreen(pScreen,as);
return TRUE;
}
int
AnimCursorCreate (CursorPtr *cursors, CARD32 *deltas, int ncursor, CursorPtr *ppCursor)
{
CursorPtr pCursor;
int i;
AnimCurPtr ac;
for (i = 0; i < screenInfo.numScreens; i++)
if (!GetAnimCurScreenIfSet (screenInfo.screens[i]))
return BadImplementation;
for (i = 0; i < ncursor; i++)
if (IsAnimCur (cursors[i]))
return BadMatch;
pCursor = (CursorPtr) malloc (sizeof (CursorRec) +
sizeof (AnimCurRec) +
ncursor * sizeof (AnimCurElt));
if (!pCursor)
return BadAlloc;
pCursor->bits = &animCursorBits;
animCursorBits.refcnt++;
pCursor->refcnt = 1;
pCursor->foreRed = cursors[0]->foreRed;
pCursor->foreGreen = cursors[0]->foreGreen;
pCursor->foreBlue = cursors[0]->foreBlue;
pCursor->backRed = cursors[0]->backRed;
pCursor->backGreen = cursors[0]->backGreen;
pCursor->backBlue = cursors[0]->backBlue;
/*
* Fill in the AnimCurRec
*/
ac = GetAnimCur (pCursor);
ac->nelt = ncursor;
ac->elts = (AnimCurElt *) (ac + 1);
for (i = 0; i < ncursor; i++)
{
cursors[i]->refcnt++;
ac->elts[i].pCursor = cursors[i];
ac->elts[i].delay = deltas[i];
}
*ppCursor = pCursor;
return Success;
}

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nx-X11/programs/Xserver/render/filter.c Normal file
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/*
* $Id: filter.c,v 1.10 2005/07/03 08:53:54 daniels Exp $
*
* Copyright © 2002 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "misc.h"
#include "scrnintstr.h"
#include "os.h"
#include "regionstr.h"
#include "validate.h"
#include "windowstr.h"
#include "input.h"
#include "resource.h"
#include "colormapst.h"
#include "cursorstr.h"
#include "dixstruct.h"
#include "gcstruct.h"
#include "servermd.h"
#include "picturestr.h"
static char **filterNames;
static int nfilterNames;
/*
* standard but not required filters don't have constant indices
*/
int
PictureGetFilterId (char *filter, int len, Bool makeit)
{
int i;
char *name;
char **names;
if (len < 0)
len = strlen (filter);
for (i = 0; i < nfilterNames; i++)
if (!CompareISOLatin1Lowered ((unsigned char *) filterNames[i], -1, (unsigned char *) filter, len))
return i;
if (!makeit)
return -1;
name = malloc (len + 1);
if (!name)
return -1;
memcpy (name, filter, len);
name[len] = '\0';
if (filterNames)
names = realloc (filterNames, (nfilterNames + 1) * sizeof (char *));
else
names = malloc (sizeof (char *));
if (!names)
{
free (name);
return -1;
}
filterNames = names;
i = nfilterNames++;
filterNames[i] = name;
return i;
}
static Bool
PictureSetDefaultIds (void)
{
/* careful here -- this list must match the #define values */
if (PictureGetFilterId (FilterNearest, -1, TRUE) != PictFilterNearest)
return FALSE;
if (PictureGetFilterId (FilterBilinear, -1, TRUE) != PictFilterBilinear)
return FALSE;
if (PictureGetFilterId (FilterFast, -1, TRUE) != PictFilterFast)
return FALSE;
if (PictureGetFilterId (FilterGood, -1, TRUE) != PictFilterGood)
return FALSE;
if (PictureGetFilterId (FilterBest, -1, TRUE) != PictFilterBest)
return FALSE;
if (PictureGetFilterId (FilterConvolution, -1, TRUE) != PictFilterConvolution)
return FALSE;
return TRUE;
}
char *
PictureGetFilterName (int id)
{
if (0 <= id && id < nfilterNames)
return filterNames[id];
else
return 0;
}
static void
PictureFreeFilterIds (void)
{
int i;
for (i = 0; i < nfilterNames; i++)
free (filterNames[i]);
free (filterNames);
nfilterNames = 0;
filterNames = 0;
}
int
PictureAddFilter (ScreenPtr pScreen,
char *filter,
PictFilterValidateParamsProcPtr ValidateParams)
{
PictureScreenPtr ps = GetPictureScreen(pScreen);
int id = PictureGetFilterId (filter, -1, TRUE);
int i;
PictFilterPtr filters;
if (id < 0)
return -1;
/*
* It's an error to attempt to reregister a filter
*/
for (i = 0; i < ps->nfilters; i++)
if (ps->filters[i].id == id)
return -1;
if (ps->filters)
filters = realloc (ps->filters, (ps->nfilters + 1) * sizeof (PictFilterRec));
else
filters = malloc (sizeof (PictFilterRec));
if (!filters)
return -1;
ps->filters = filters;
i = ps->nfilters++;
ps->filters[i].name = PictureGetFilterName (id);
ps->filters[i].id = id;
ps->filters[i].ValidateParams = ValidateParams;
return id;
}
Bool
PictureSetFilterAlias (ScreenPtr pScreen, char *filter, char *alias)
{
PictureScreenPtr ps = GetPictureScreen(pScreen);
int filter_id = PictureGetFilterId (filter, -1, FALSE);
int alias_id = PictureGetFilterId (alias, -1, TRUE);
int i;
if (filter_id < 0 || alias_id < 0)
return FALSE;
for (i = 0; i < ps->nfilterAliases; i++)
if (ps->filterAliases[i].alias_id == alias_id)
break;
if (i == ps->nfilterAliases)
{
PictFilterAliasPtr aliases;
if (ps->filterAliases)
aliases = realloc (ps->filterAliases,
(ps->nfilterAliases + 1) *
sizeof (PictFilterAliasRec));
else
aliases = malloc (sizeof (PictFilterAliasRec));
if (!aliases)
return FALSE;
ps->filterAliases = aliases;
ps->filterAliases[i].alias = PictureGetFilterName (alias_id);
ps->filterAliases[i].alias_id = alias_id;
ps->nfilterAliases++;
}
ps->filterAliases[i].filter_id = filter_id;
return TRUE;
}
PictFilterPtr
PictureFindFilter (ScreenPtr pScreen, char *name, int len)
{
PictureScreenPtr ps = GetPictureScreen(pScreen);
int id = PictureGetFilterId (name, len, FALSE);
int i;
if (id < 0)
return 0;
/* Check for an alias, allow them to recurse */
for (i = 0; i < ps->nfilterAliases; i++)
if (ps->filterAliases[i].alias_id == id)
{
id = ps->filterAliases[i].filter_id;
i = 0;
}
/* find the filter */
for (i = 0; i < ps->nfilters; i++)
if (ps->filters[i].id == id)
return &ps->filters[i];
return 0;
}
static Bool
convolutionFilterValidateParams (ScreenPtr pScreen,
int filter,
xFixed *params,
int nparams,
int* width,
int* height)
{
int w, h;
if (nparams < 3)
return FALSE;
if (xFixedFrac (params[0]) || xFixedFrac (params[1]))
return FALSE;
w = xFixedToInt (params[0]);
h = xFixedToInt (params[1]);
nparams -= 2;
if (w * h > nparams)
return FALSE;
*width = w;
*height = h;
return TRUE;
}
Bool
PictureSetDefaultFilters (ScreenPtr pScreen)
{
if (!filterNames)
if (!PictureSetDefaultIds ())
return FALSE;
if (PictureAddFilter (pScreen, FilterNearest, 0) < 0)
return FALSE;
if (PictureAddFilter (pScreen, FilterBilinear, 0) < 0)
return FALSE;
if (!PictureSetFilterAlias (pScreen, FilterNearest, FilterFast))
return FALSE;
if (!PictureSetFilterAlias (pScreen, FilterBilinear, FilterGood))
return FALSE;
if (!PictureSetFilterAlias (pScreen, FilterBilinear, FilterBest))
return FALSE;
if (PictureAddFilter (pScreen, FilterConvolution, convolutionFilterValidateParams) < 0)
return FALSE;
return TRUE;
}
void
PictureResetFilters (ScreenPtr pScreen)
{
PictureScreenPtr ps = GetPictureScreen(pScreen);
free (ps->filters);
free (ps->filterAliases);
PictureFreeFilterIds ();
}
int
SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int nparams)
{
PictFilterPtr pFilter;
ScreenPtr pScreen;
if (pPicture->pDrawable) {
pScreen = pPicture->pDrawable->pScreen;
}
else {
pScreen = screenInfo.screens[0];
}
pFilter = PictureFindFilter (pScreen, name, len);
if (!pFilter)
return BadName;
if (pPicture->pDrawable == NULL) {
int s;
/* For source pictures, the picture isn't tied to a screen. So, ensure
* that all screens can handle a filter we set for the picture.
*/
for (s = 1; s < screenInfo.numScreens; s++) {
PictFilterPtr pScreenFilter;
pScreenFilter = PictureFindFilter(screenInfo.screens[s], name, len);
if (!pScreenFilter || pScreenFilter->id != pFilter->id)
return BadMatch;
}
}
return SetPicturePictFilter (pPicture, pFilter, params, nparams);
}
int
SetPicturePictFilter (PicturePtr pPicture, PictFilterPtr pFilter,
xFixed *params, int nparams)
{
ScreenPtr pScreen;
int i;
if (pPicture->pDrawable)
pScreen = pPicture->pDrawable->pScreen;
else
pScreen = screenInfo.screens[0];
if (pFilter->ValidateParams) {
int width, height;
if (!(*pFilter->ValidateParams) (pScreen, pFilter->id, params, nparams, &width, &height))
return BadMatch;
}
else if (nparams) {
return BadMatch;
}
if (nparams != pPicture->filter_nparams) {
xFixed *new_params = malloc (nparams * sizeof (xFixed));
if (!new_params && nparams)
return BadAlloc;
free (pPicture->filter_params);
pPicture->filter_params = new_params;
pPicture->filter_nparams = nparams;
}
for (i = 0; i < nparams; i++)
pPicture->filter_params[i] = params[i];
pPicture->filter = pFilter->id;
if (pPicture->pDrawable)
{
PictureScreenPtr ps = GetPictureScreen(pScreen);
int result;
result = (*ps->ChangePictureFilter) (pPicture, pPicture->filter,
params, nparams);
return result;
}
pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
return Success;
}

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nx-X11/programs/Xserver/render/glyph.c Normal file
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/*
* Copyright © 2000 SuSE, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE 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.
*
* Author: Keith Packard, SuSE, Inc.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "misc.h"
#include "scrnintstr.h"
#include "os.h"
#include "regionstr.h"
#include "validate.h"
#include "windowstr.h"
#include "input.h"
#include "resource.h"
#include "colormapst.h"
#include "cursorstr.h"
#include "dixstruct.h"
#include "gcstruct.h"
#include "servermd.h"
#include "picturestr.h"
#include "glyphstr.h"
#include "mipict.h"
#include <stdint.h>
/*
* From Knuth -- a good choice for hash/rehash values is p, p-2 where
* p and p-2 are both prime. These tables are sized to have an extra 10%
* free to avoid exponential performance degradation as the hash table fills
*/
static GlyphHashSetRec glyphHashSets[] = {
{ 32, 43, 41 },
{ 64, 73, 71 },
{ 128, 151, 149 },
{ 256, 283, 281 },
{ 512, 571, 569 },
{ 1024, 1153, 1151 },
{ 2048, 2269, 2267 },
{ 4096, 4519, 4517 },
{ 8192, 9013, 9011 },
{ 16384, 18043, 18041 },
{ 32768, 36109, 36107 },
{ 65536, 72091, 72089 },
{ 131072, 144409, 144407 },
{ 262144, 288361, 288359 },
{ 524288, 576883, 576881 },
{ 1048576, 1153459, 1153457 },
{ 2097152, 2307163, 2307161 },
{ 4194304, 4613893, 4613891 },
{ 8388608, 9227641, 9227639 },
{ 16777216, 18455029, 18455027 },
{ 33554432, 36911011, 36911009 },
{ 67108864, 73819861, 73819859 },
{ 134217728, 147639589, 147639587 },
{ 268435456, 295279081, 295279079 },
{ 536870912, 590559793, 590559791 }
};
#define NGLYPHHASHSETS (sizeof(glyphHashSets)/sizeof(glyphHashSets[0]))
const CARD8 glyphDepths[GlyphFormatNum] = { 1, 4, 8, 16, 32 };
GlyphHashRec globalGlyphs[GlyphFormatNum];
GlyphHashSetPtr
FindGlyphHashSet (CARD32 filled)
{
int i;
for (i = 0; i < NGLYPHHASHSETS; i++)
if (glyphHashSets[i].entries >= filled)
return &glyphHashSets[i];
return 0;
}
static int _GlyphSetPrivateAllocateIndex = 0;
int
AllocateGlyphSetPrivateIndex (void)
{
return _GlyphSetPrivateAllocateIndex++;
}
void
ResetGlyphSetPrivateIndex (void)
{
_GlyphSetPrivateAllocateIndex = 0;
}
Bool
_GlyphSetSetNewPrivate (GlyphSetPtr glyphSet, int n, void * ptr)
{
void **new;
if (n > glyphSet->maxPrivate) {
if (glyphSet->devPrivates &&
glyphSet->devPrivates != (void *)(&glyphSet[1])) {
new = (void **) realloc (glyphSet->devPrivates,
(n + 1) * sizeof (void *));
if (!new)
return FALSE;
} else {
new = (void **) malloc ((n + 1) * sizeof (void *));
if (!new)
return FALSE;
if (glyphSet->devPrivates)
memcpy (new,
glyphSet->devPrivates,
(glyphSet->maxPrivate + 1) * sizeof (void *));
}
glyphSet->devPrivates = new;
/* Zero out new, uninitialize privates */
while (++glyphSet->maxPrivate < n)
glyphSet->devPrivates[glyphSet->maxPrivate] = (void *)0;
}
glyphSet->devPrivates[n] = ptr;
return TRUE;
}
Bool
GlyphInit (ScreenPtr pScreen)
{
return TRUE;
}
#ifndef NXAGENT_SERVER
GlyphRefPtr
FindGlyphRef (GlyphHashPtr hash, CARD32 signature, Bool match, GlyphPtr compare)
{
CARD32 elt, step, s;
GlyphPtr glyph;
GlyphRefPtr table, gr, del;
CARD32 tableSize = hash->hashSet->size;
table = hash->table;
elt = signature % tableSize;
step = 0;
del = 0;
for (;;)
{
gr = &table[elt];
s = gr->signature;
glyph = gr->glyph;
if (!glyph)
{
if (del)
gr = del;
break;
}
if (glyph == DeletedGlyph)
{
if (!del)
del = gr;
else if (gr == del)
break;
}
else if (s == signature &&
(!match ||
memcmp (&compare->info, &glyph->info, compare->size) == 0))
{
break;
}
if (!step)
{
step = signature % hash->hashSet->rehash;
if (!step)
step = 1;
}
elt += step;
if (elt >= tableSize)
elt -= tableSize;
}
return gr;
}
#endif
CARD32
HashGlyph (GlyphPtr glyph)
{
CARD32 *bits = (CARD32 *) &(glyph->info);
CARD32 hash;
int n = glyph->size / sizeof (CARD32);
hash = 0;
while (n--)
hash ^= *bits++;
return hash;
}
#ifdef CHECK_DUPLICATES
void
DuplicateRef (GlyphPtr glyph, char *where)
{
ErrorF ("Duplicate Glyph 0x%x from %s\n", glyph, where);
}
void
CheckDuplicates (GlyphHashPtr hash, char *where)
{
GlyphPtr g;
int i, j;
for (i = 0; i < hash->hashSet->size; i++)
{
g = hash->table[i].glyph;
if (!g || g == DeletedGlyph)
continue;
for (j = i + 1; j < hash->hashSet->size; j++)
if (hash->table[j].glyph == g)
DuplicateRef (g, where);
}
}
#else
#define CheckDuplicates(a,b)
#define DuplicateRef(a,b)
#endif
void
FreeGlyph (GlyphPtr glyph, int format)
{
CheckDuplicates (&globalGlyphs[format], "FreeGlyph");
if (--glyph->refcnt == 0)
{
GlyphRefPtr gr;
int i;
int first;
first = -1;
for (i = 0; i < globalGlyphs[format].hashSet->size; i++)
if (globalGlyphs[format].table[i].glyph == glyph)
{
if (first != -1)
DuplicateRef (glyph, "FreeGlyph check");
first = i;
}
gr = FindGlyphRef (&globalGlyphs[format],
HashGlyph (glyph), TRUE, glyph);
if (gr - globalGlyphs[format].table != first)
DuplicateRef (glyph, "Found wrong one");
if (gr->glyph && gr->glyph != DeletedGlyph)
{
gr->glyph = DeletedGlyph;
gr->signature = 0;
globalGlyphs[format].tableEntries--;
}
free (glyph);
}
}
#ifndef NXAGENT_SERVER
void
AddGlyph (GlyphSetPtr glyphSet, GlyphPtr glyph, Glyph id)
{
GlyphRefPtr gr;
CARD32 hash;
CheckDuplicates (&globalGlyphs[glyphSet->fdepth], "AddGlyph top global");
/* Locate existing matching glyph */
hash = HashGlyph (glyph);
gr = FindGlyphRef (&globalGlyphs[glyphSet->fdepth], hash, TRUE, glyph);
if (gr->glyph && gr->glyph != DeletedGlyph)
{
free (glyph);
glyph = gr->glyph;
}
else
{
gr->glyph = glyph;
gr->signature = hash;
globalGlyphs[glyphSet->fdepth].tableEntries++;
}
/* Insert/replace glyphset value */
gr = FindGlyphRef (&glyphSet->hash, id, FALSE, 0);
++glyph->refcnt;
if (gr->glyph && gr->glyph != DeletedGlyph)
FreeGlyph (gr->glyph, glyphSet->fdepth);
else
glyphSet->hash.tableEntries++;
gr->glyph = glyph;
gr->signature = id;
CheckDuplicates (&globalGlyphs[glyphSet->fdepth], "AddGlyph bottom");
}
#endif /* NXAGENT_SERVER */
Bool
DeleteGlyph (GlyphSetPtr glyphSet, Glyph id)
{
GlyphRefPtr gr;
GlyphPtr glyph;
gr = FindGlyphRef (&glyphSet->hash, id, FALSE, 0);
glyph = gr->glyph;
if (glyph && glyph != DeletedGlyph)
{
gr->glyph = DeletedGlyph;
glyphSet->hash.tableEntries--;
FreeGlyph (glyph, glyphSet->fdepth);
return TRUE;
}
return FALSE;
}
#ifndef NXAGENT_SERVER
GlyphPtr
FindGlyph (GlyphSetPtr glyphSet, Glyph id)
{
GlyphPtr glyph;
glyph = FindGlyphRef (&glyphSet->hash, id, FALSE, 0)->glyph;
if (glyph == DeletedGlyph)
glyph = 0;
return glyph;
}
#endif /* NXAGENT_SERVER */
GlyphPtr
AllocateGlyph (xGlyphInfo *gi, int fdepth)
{
int size;
GlyphPtr glyph;
size_t padded_width;
padded_width = PixmapBytePad (gi->width, glyphDepths[fdepth]);
if (gi->height && padded_width > (UINT32_MAX - sizeof(GlyphRec))/gi->height)
return 0;
size = gi->height * padded_width;
glyph = (GlyphPtr) malloc (size + sizeof (GlyphRec));
if (!glyph)
return 0;
glyph->refcnt = 0;
glyph->size = size + sizeof (xGlyphInfo);
glyph->info = *gi;
return glyph;
}
Bool
AllocateGlyphHash (GlyphHashPtr hash, GlyphHashSetPtr hashSet)
{
hash->table = (GlyphRefPtr) malloc (hashSet->size * sizeof (GlyphRefRec));
if (!hash->table)
return FALSE;
memset (hash->table, 0, hashSet->size * sizeof (GlyphRefRec));
hash->hashSet = hashSet;
hash->tableEntries = 0;
return TRUE;
}
#ifndef NXAGENT_SERVER
Bool
ResizeGlyphHash (GlyphHashPtr hash, CARD32 change, Bool global)
{
CARD32 tableEntries;
GlyphHashSetPtr hashSet;
GlyphHashRec newHash;
GlyphRefPtr gr;
GlyphPtr glyph;
int i;
int oldSize;
CARD32 s;
tableEntries = hash->tableEntries + change;
hashSet = FindGlyphHashSet (tableEntries);
if (hashSet == hash->hashSet)
return TRUE;
if (global)
CheckDuplicates (hash, "ResizeGlyphHash top");
if (!AllocateGlyphHash (&newHash, hashSet))
return FALSE;
if (hash->table)
{
oldSize = hash->hashSet->size;
for (i = 0; i < oldSize; i++)
{
glyph = hash->table[i].glyph;
if (glyph && glyph != DeletedGlyph)
{
s = hash->table[i].signature;
gr = FindGlyphRef (&newHash, s, global, glyph);
gr->signature = s;
gr->glyph = glyph;
++newHash.tableEntries;
}
}
free (hash->table);
}
*hash = newHash;
if (global)
CheckDuplicates (hash, "ResizeGlyphHash bottom");
return TRUE;
}
#endif /* NXAGENT_SERVER */
Bool
ResizeGlyphSet (GlyphSetPtr glyphSet, CARD32 change)
{
return (ResizeGlyphHash (&glyphSet->hash, change, FALSE) &&
ResizeGlyphHash (&globalGlyphs[glyphSet->fdepth], change, TRUE));
}
GlyphSetPtr
AllocateGlyphSet (int fdepth, PictFormatPtr format)
{
GlyphSetPtr glyphSet;
int size;
if (!globalGlyphs[fdepth].hashSet)
{
if (!AllocateGlyphHash (&globalGlyphs[fdepth], &glyphHashSets[0]))
return FALSE;
}
size = (sizeof (GlyphSetRec) +
(sizeof (void *) * _GlyphSetPrivateAllocateIndex));
glyphSet = malloc (size);
if (!glyphSet)
return FALSE;
bzero((char *)glyphSet, size);
glyphSet->maxPrivate = _GlyphSetPrivateAllocateIndex - 1;
if (_GlyphSetPrivateAllocateIndex)
glyphSet->devPrivates = (void *)(&glyphSet[1]);
if (!AllocateGlyphHash (&glyphSet->hash, &glyphHashSets[0]))
{
free (glyphSet);
return FALSE;
}
glyphSet->refcnt = 1;
glyphSet->fdepth = fdepth;
glyphSet->format = format;
return glyphSet;
}
int
FreeGlyphSet (void *value,
XID gid)
{
GlyphSetPtr glyphSet = (GlyphSetPtr) value;
if (--glyphSet->refcnt == 0)
{
CARD32 i, tableSize = glyphSet->hash.hashSet->size;
GlyphRefPtr table = glyphSet->hash.table;
GlyphPtr glyph;
for (i = 0; i < tableSize; i++)
{
glyph = table[i].glyph;
if (glyph && glyph != DeletedGlyph)
FreeGlyph (glyph, glyphSet->fdepth);
}
if (!globalGlyphs[glyphSet->fdepth].tableEntries)
{
free (globalGlyphs[glyphSet->fdepth].table);
globalGlyphs[glyphSet->fdepth].table = 0;
globalGlyphs[glyphSet->fdepth].hashSet = 0;
}
else
ResizeGlyphHash (&globalGlyphs[glyphSet->fdepth], 0, TRUE);
free (table);
if (glyphSet->devPrivates &&
glyphSet->devPrivates != (void *)(&glyphSet[1]))
free(glyphSet->devPrivates);
free (glyphSet);
}
return Success;
}
void
GlyphExtents(int nlist, GlyphListPtr list, GlyphPtr * glyphs, BoxPtr extents)
{
int x1, x2, y1, y2;
int n;
GlyphPtr glyph;
int x, y;
x = 0;
y = 0;
extents->x1 = MAXSHORT;
extents->x2 = MINSHORT;
extents->y1 = MAXSHORT;
extents->y2 = MINSHORT;
while (nlist--) {
x += list->xOff;
y += list->yOff;
n = list->len;
list++;
while (n--) {
glyph = *glyphs++;
x1 = x - glyph->info.x;
if (x1 < MINSHORT)
x1 = MINSHORT;
y1 = y - glyph->info.y;
if (y1 < MINSHORT)
y1 = MINSHORT;
x2 = x1 + glyph->info.width;
if (x2 > MAXSHORT)
x2 = MAXSHORT;
y2 = y1 + glyph->info.height;
if (y2 > MAXSHORT)
y2 = MAXSHORT;
if (x1 < extents->x1)
extents->x1 = x1;
if (x2 > extents->x2)
extents->x2 = x2;
if (y1 < extents->y1)
extents->y1 = y1;
if (y2 > extents->y2)
extents->y2 = y2;
x += glyph->info.xOff;
y += glyph->info.yOff;
}
}
}
#define NeedsComponent(f) (PICT_FORMAT_A(f) != 0 && PICT_FORMAT_RGB(f) != 0)
void
CompositeGlyphs(CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc, int nlist, GlyphListPtr lists, GlyphPtr * glyphs)
{
PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
ValidatePicture(pSrc);
ValidatePicture(pDst);
(*ps->Glyphs) (op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, lists,
glyphs);
}
#ifndef NXAGENT_SERVER
void
miGlyphs(CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc, int nlist, GlyphListPtr list, GlyphPtr * glyphs)
{
PixmapPtr pPixmap = 0;
PicturePtr pPicture;
PixmapPtr pMaskPixmap = 0;
PicturePtr pMask;
ScreenPtr pScreen = pDst->pDrawable->pScreen;
int width = 0, height = 0;
int x, y;
int xDst = list->xOff, yDst = list->yOff;
int n;
GlyphPtr glyph;
int error;
BoxRec extents;
CARD32 component_alpha;
if (maskFormat) {
GCPtr pGC;
xRectangle rect;
GlyphExtents(nlist, list, glyphs, &extents);
if (extents.x2 <= extents.x1 || extents.y2 <= extents.y1)
return;
width = extents.x2 - extents.x1;
height = extents.y2 - extents.y1;
pMaskPixmap =
(*pScreen->CreatePixmap) (pScreen, width, height,
maskFormat->depth,
CREATE_PIXMAP_USAGE_SCRATCH);
if (!pMaskPixmap)
return;
component_alpha = NeedsComponent(maskFormat->format);
pMask = CreatePicture(0, &pMaskPixmap->drawable,
maskFormat, CPComponentAlpha, &component_alpha,
serverClient, &error);
if (!pMask) {
(*pScreen->DestroyPixmap) (pMaskPixmap);
return;
}
pGC = GetScratchGC(pMaskPixmap->drawable.depth, pScreen);
ValidateGC(&pMaskPixmap->drawable, pGC);
rect.x = 0;
rect.y = 0;
rect.width = width;
rect.height = height;
(*pGC->ops->PolyFillRect) (&pMaskPixmap->drawable, pGC, 1, &rect);
FreeScratchGC(pGC);
x = -extents.x1;
y = -extents.y1;
}
else {
pMask = pDst;
x = 0;
y = 0;
}
pPicture = 0;
while (nlist--) {
x += list->xOff;
y += list->yOff;
n = list->len;
while (n--) {
glyph = *glyphs++;
if (!pPicture) {
pPixmap =
GetScratchPixmapHeader(pScreen, glyph->info.width,
glyph->info.height,
list->format->depth,
list->format->depth, 0,
(void *) (glyph + 1));
if (!pPixmap)
return;
component_alpha = NeedsComponent(list->format->format);
pPicture = CreatePicture(0, &pPixmap->drawable, list->format,
CPComponentAlpha, &component_alpha,
serverClient, &error);
if (!pPicture) {
FreeScratchPixmapHeader(pPixmap);
return;
}
}
(*pScreen->ModifyPixmapHeader) (pPixmap,
glyph->info.width,
glyph->info.height, 0, 0, -1,
(void *) (glyph + 1));
pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
if (maskFormat) {
CompositePicture(PictOpAdd,
pPicture,
None,
pMask,
0, 0,
0, 0,
x - glyph->info.x,
y - glyph->info.y,
glyph->info.width, glyph->info.height);
}
else {
CompositePicture(op,
pSrc,
pPicture,
pDst,
xSrc + (x - glyph->info.x) - xDst,
ySrc + (y - glyph->info.y) - yDst,
0, 0,
x - glyph->info.x,
y - glyph->info.y,
glyph->info.width, glyph->info.height);
}
x += glyph->info.xOff;
y += glyph->info.yOff;
}
list++;
if (pPicture) {
FreeScratchPixmapHeader(pPixmap);
FreePicture((void *) pPicture, 0);
pPicture = 0;
pPixmap = 0;
}
}
if (maskFormat) {
x = extents.x1;
y = extents.y1;
CompositePicture(op,
pSrc,
pMask,
pDst,
xSrc + x - xDst,
ySrc + y - yDst, 0, 0, x, y, width, height);
FreePicture((void *) pMask, (XID) 0);
(*pScreen->DestroyPixmap) (pMaskPixmap);
}
}
#endif

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/*
* Copyright © 2000 SuSE, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE 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.
*
* Author: Keith Packard, SuSE, Inc.
*/
#ifndef _GLYPHSTR_H_
#define _GLYPHSTR_H_
#include <nx-X11/extensions/renderproto.h>
#include "picture.h"
#include "screenint.h"
#define GlyphFormat1 0
#define GlyphFormat4 1
#define GlyphFormat8 2
#define GlyphFormat16 3
#define GlyphFormat32 4
#define GlyphFormatNum 5
typedef struct _Glyph {
CARD32 refcnt;
CARD32 size; /* info + bitmap */
xGlyphInfo info;
/* bits follow */
} GlyphRec, *GlyphPtr;
#ifdef NXAGENT_SERVER
#include "../hw/nxagent/NXglyphstr_GlyphRef.h"
#else
typedef struct _GlyphRef {
CARD32 signature;
GlyphPtr glyph;
} GlyphRefRec, *GlyphRefPtr;
#endif /* NXAGENT_SERVER */
#define DeletedGlyph ((GlyphPtr) 1)
typedef struct _GlyphHashSet {
CARD32 entries;
CARD32 size;
CARD32 rehash;
} GlyphHashSetRec, *GlyphHashSetPtr;
typedef struct _GlyphHash {
GlyphRefPtr table;
GlyphHashSetPtr hashSet;
CARD32 tableEntries;
} GlyphHashRec, *GlyphHashPtr;
#ifdef NXAGENT_SERVER
#include "../hw/nxagent/NXglyphstr_GlyphSet.h"
#else
typedef struct _GlyphSet {
CARD32 refcnt;
PictFormatPtr format;
int fdepth;
GlyphHashRec hash;
int maxPrivate;
void **devPrivates;
} GlyphSetRec, *GlyphSetPtr;
#endif /* NXAGENT_SERVER */
#define GlyphSetGetPrivate(pGlyphSet,n) \
((n) > (pGlyphSet)->maxPrivate ? \
(void *) 0 : \
(pGlyphSet)->devPrivates[n])
#define GlyphSetSetPrivate(pGlyphSet,n,ptr) \
((n) > (pGlyphSet)->maxPrivate ? \
_GlyphSetSetNewPrivate(pGlyphSet, n, ptr) : \
((((pGlyphSet)->devPrivates[n] = (ptr)) != 0) || TRUE))
typedef struct _GlyphList {
INT16 xOff;
INT16 yOff;
CARD8 len;
PictFormatPtr format;
} GlyphListRec, *GlyphListPtr;
extern GlyphHashRec globalGlyphs[GlyphFormatNum];
GlyphHashSetPtr
FindGlyphHashSet (CARD32 filled);
int
AllocateGlyphSetPrivateIndex (void);
void
ResetGlyphSetPrivateIndex (void);
Bool
_GlyphSetSetNewPrivate (GlyphSetPtr glyphSet, int n, void * ptr);
Bool
GlyphInit (ScreenPtr pScreen);
GlyphRefPtr
FindGlyphRef (GlyphHashPtr hash, CARD32 signature, Bool match, GlyphPtr compare);
CARD32
HashGlyph (GlyphPtr glyph);
void
FreeGlyph (GlyphPtr glyph, int format);
void
AddGlyph (GlyphSetPtr glyphSet, GlyphPtr glyph, Glyph id);
Bool
DeleteGlyph (GlyphSetPtr glyphSet, Glyph id);
GlyphPtr
FindGlyph (GlyphSetPtr glyphSet, Glyph id);
GlyphPtr
AllocateGlyph (xGlyphInfo *gi, int format);
Bool
AllocateGlyphHash (GlyphHashPtr hash, GlyphHashSetPtr hashSet);
Bool
ResizeGlyphHash (GlyphHashPtr hash, CARD32 change, Bool global);
Bool
ResizeGlyphSet (GlyphSetPtr glyphSet, CARD32 change);
GlyphSetPtr
AllocateGlyphSet (int fdepth, PictFormatPtr format);
int
FreeGlyphSet (void *value,
XID gid);
#endif /* _GLYPHSTR_H_ */

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/*
* Copyright © 2007 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "misc.h"
#include "scrnintstr.h"
#include "os.h"
#include "regionstr.h"
#include "validate.h"
#include "windowstr.h"
#include "input.h"
#include "resource.h"
#include "colormapst.h"
#include "cursorstr.h"
#include "dixstruct.h"
#include "gcstruct.h"
#include "servermd.h"
#include "picturestr.h"
void
PictTransform_from_xRenderTransform(PictTransformPtr pict,
xRenderTransform * render)
{
pict->matrix[0][0] = render->matrix11;
pict->matrix[0][1] = render->matrix12;
pict->matrix[0][2] = render->matrix13;
pict->matrix[1][0] = render->matrix21;
pict->matrix[1][1] = render->matrix22;
pict->matrix[1][2] = render->matrix23;
pict->matrix[2][0] = render->matrix31;
pict->matrix[2][1] = render->matrix32;
pict->matrix[2][2] = render->matrix33;
}
void
xRenderTransform_from_PictTransform(xRenderTransform * render,
PictTransformPtr pict)
{
render->matrix11 = pict->matrix[0][0];
render->matrix12 = pict->matrix[0][1];
render->matrix13 = pict->matrix[0][2];
render->matrix21 = pict->matrix[1][0];
render->matrix22 = pict->matrix[1][1];
render->matrix23 = pict->matrix[1][2];
render->matrix31 = pict->matrix[2][0];
render->matrix32 = pict->matrix[2][1];
render->matrix33 = pict->matrix[2][2];
}
Bool
PictureTransformPoint(PictTransformPtr transform, PictVectorPtr vector)
{
return pixman_transform_point(transform, vector);
}
Bool
PictureTransformPoint3d(PictTransformPtr transform, PictVectorPtr vector)
{
return pixman_transform_point_3d(transform, vector);
}

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/*
* Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#ifndef _MIINDEX_H_
#define _MIINDEX_H_
#include "scrnintstr.h"
#include "gcstruct.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "mi.h"
#include "picturestr.h"
#include "mipict.h"
#include "colormapst.h"
#define NUM_CUBE_LEVELS 4
#define NUM_GRAY_LEVELS 13
static Bool
miBuildRenderColormap (ColormapPtr pColormap, Pixel *pixels, int *nump)
{
int r, g, b;
unsigned short red, green, blue;
Pixel pixel;
Bool used[MI_MAX_INDEXED];
int needed;
int policy;
int cube, gray;
int i, n;
if (pColormap->mid != pColormap->pScreen->defColormap)
{
policy = PictureCmapPolicyAll;
}
else
{
int avail = pColormap->pVisual->ColormapEntries;
policy = PictureCmapPolicy;
if (policy == PictureCmapPolicyDefault)
{
if (avail >= 256 && (pColormap->pVisual->class|DynamicClass) == PseudoColor)
policy = PictureCmapPolicyColor;
else if (avail >= 64)
policy = PictureCmapPolicyGray;
else
policy = PictureCmapPolicyMono;
}
}
/*
* Make sure enough cells are free for the chosen policy
*/
for (;;)
{
switch (policy) {
case PictureCmapPolicyAll:
needed = 0;
break;
case PictureCmapPolicyColor:
needed = 71;
break;
case PictureCmapPolicyGray:
needed = 11;
break;
case PictureCmapPolicyMono:
default:
needed = 0;
break;
}
if (needed <= pColormap->freeRed)
break;
policy--;
}
/*
* Compute size of cube and gray ramps
*/
cube = gray = 0;
switch (policy) {
case PictureCmapPolicyAll:
/*
* Allocate as big a cube as possible
*/
if ((pColormap->pVisual->class|DynamicClass) == PseudoColor)
{
for (cube = 1; cube * cube * cube < pColormap->pVisual->ColormapEntries; cube++)
;
cube--;
if (cube == 1)
cube = 0;
}
else
cube = 0;
/*
* Figure out how many gray levels to use so that they
* line up neatly with the cube
*/
if (cube)
{
needed = pColormap->pVisual->ColormapEntries - (cube*cube*cube);
/* levels to fill in with */
gray = needed / (cube - 1);
/* total levels */
gray = (gray + 1) * (cube - 1) + 1;
}
else
gray = pColormap->pVisual->ColormapEntries;
break;
case PictureCmapPolicyColor:
cube = NUM_CUBE_LEVELS;
/* fall through ... */
case PictureCmapPolicyGray:
gray = NUM_GRAY_LEVELS;
break;
case PictureCmapPolicyMono:
default:
gray = 2;
break;
}
memset (used, '\0', pColormap->pVisual->ColormapEntries * sizeof (Bool));
for (r = 0; r < cube; r++)
for (g = 0; g < cube; g++)
for (b = 0; b < cube; b++)
{
red = (r * 65535 + (cube-1)/2) / (cube - 1);
green = (g * 65535 + (cube-1)/2) / (cube - 1);
blue = (b * 65535 + (cube-1)/2) / (cube - 1);
if (AllocColor (pColormap, &red, &green,
&blue, &pixel, 0) != Success)
return FALSE;
used[pixel] = TRUE;
}
for (g = 0; g < gray; g++)
{
red = green = blue = (g * 65535 + (gray-1)/2) / (gray - 1);
if (AllocColor (pColormap, &red, &green, &blue, &pixel, 0) != Success)
return FALSE;
used[pixel] = TRUE;
}
n = 0;
for (i = 0; i < pColormap->pVisual->ColormapEntries; i++)
if (used[i])
pixels[n++] = i;
*nump = n;
return TRUE;
}
/* 0 <= red, green, blue < 32 */
static Pixel
FindBestColor (miIndexedPtr pIndexed, Pixel *pixels, int num,
int red, int green, int blue)
{
Pixel best = pixels[0];
int bestDist = 1 << 30;
int dist;
int dr, dg, db;
while (num--)
{
Pixel pixel = *pixels++;
CARD32 v = pIndexed->rgba[pixel];
dr = ((v >> 19) & 0x1f);
dg = ((v >> 11) & 0x1f);
db = ((v >> 3) & 0x1f);
dr = dr - red;
dg = dg - green;
db = db - blue;
dist = dr * dr + dg * dg + db * db;
if (dist < bestDist)
{
bestDist = dist;
best = pixel;
}
}
return best;
}
/* 0 <= gray < 32768 */
static Pixel
FindBestGray (miIndexedPtr pIndexed, Pixel *pixels, int num, int gray)
{
Pixel best = pixels[0];
int bestDist = 1 << 30;
int dist;
int dr;
int r;
while (num--)
{
Pixel pixel = *pixels++;
CARD32 v = pIndexed->rgba[pixel];
r = v & 0xff;
r = r | (r << 8);
dr = gray - (r >> 1);
dist = dr * dr;
if (dist < bestDist)
{
bestDist = dist;
best = pixel;
}
}
return best;
}
Bool
miInitIndexed (ScreenPtr pScreen,
PictFormatPtr pFormat)
{
ColormapPtr pColormap = pFormat->index.pColormap;
VisualPtr pVisual = pColormap->pVisual;
miIndexedPtr pIndexed;
Pixel pixels[MI_MAX_INDEXED];
xrgb rgb[MI_MAX_INDEXED];
int num;
int i;
Pixel p, r, g, b;
if (pVisual->ColormapEntries > MI_MAX_INDEXED)
return FALSE;
if (pVisual->class & DynamicClass)
{
if (!miBuildRenderColormap (pColormap, pixels, &num))
return FALSE;
}
else
{
num = pVisual->ColormapEntries;
for (p = 0; p < num; p++)
pixels[p] = p;
}
pIndexed = malloc (sizeof (miIndexedRec));
if (!pIndexed)
return FALSE;
pFormat->index.nvalues = num;
pFormat->index.pValues = malloc (num * sizeof (xIndexValue));
if (!pFormat->index.pValues)
{
free (pIndexed);
return FALSE;
}
/*
* Build mapping from pixel value to ARGB
*/
QueryColors (pColormap, num, pixels, rgb);
for (i = 0; i < num; i++)
{
p = pixels[i];
pFormat->index.pValues[i].pixel = p;
pFormat->index.pValues[i].red = rgb[i].red;
pFormat->index.pValues[i].green = rgb[i].green;
pFormat->index.pValues[i].blue = rgb[i].blue;
pFormat->index.pValues[i].alpha = 0xffff;
pIndexed->rgba[p] = (0xff000000 |
((rgb[i].red & 0xff00) << 8) |
((rgb[i].green & 0xff00) ) |
((rgb[i].blue & 0xff00) >> 8));
}
/*
* Build mapping from RGB to pixel value. This could probably be
* done a bit quicker...
*/
switch (pVisual->class | DynamicClass) {
case GrayScale:
pIndexed->color = FALSE;
for (r = 0; r < 32768; r++)
pIndexed->ent[r] = FindBestGray (pIndexed, pixels, num, r);
break;
case PseudoColor:
pIndexed->color = TRUE;
p = 0;
for (r = 0; r < 32; r++)
for (g = 0; g < 32; g++)
for (b = 0; b < 32; b++)
{
pIndexed->ent[p] = FindBestColor (pIndexed, pixels, num,
r, g, b);
p++;
}
break;
}
pFormat->index.devPrivate = pIndexed;
return TRUE;
}
void
miCloseIndexed (ScreenPtr pScreen,
PictFormatPtr pFormat)
{
if (pFormat->index.devPrivate)
{
free (pFormat->index.devPrivate);
pFormat->index.devPrivate = 0;
}
if (pFormat->index.pValues)
{
free (pFormat->index.pValues);
pFormat->index.pValues = 0;
}
}
void
miUpdateIndexed (ScreenPtr pScreen,
PictFormatPtr pFormat,
int ndef,
xColorItem *pdef)
{
miIndexedPtr pIndexed = pFormat->index.devPrivate;
if (pIndexed)
{
while (ndef--)
{
pIndexed->rgba[pdef->pixel] = (0xff000000 |
((pdef->red & 0xff00) << 8) |
((pdef->green & 0xff00) ) |
((pdef->blue & 0xff00) >> 8));
pdef++;
}
}
}
#endif /* _MIINDEX_H_ */

644
nx-X11/programs/Xserver/render/mipict.c Normal file
View File

@@ -0,0 +1,644 @@
/*
* Copyright © 1999 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "scrnintstr.h"
#include "gcstruct.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "mi.h"
#include "picturestr.h"
#include "mipict.h"
#ifndef __GNUC__
#define __inline
#endif
int
miCreatePicture (PicturePtr pPicture)
{
return Success;
}
void
miDestroyPicture (PicturePtr pPicture)
{
if (pPicture->freeCompClip)
RegionDestroy(pPicture->pCompositeClip);
}
void
miDestroyPictureClip (PicturePtr pPicture)
{
switch (pPicture->clientClipType) {
case CT_NONE:
return;
case CT_PIXMAP:
(*pPicture->pDrawable->pScreen->DestroyPixmap) ((PixmapPtr) (pPicture->clientClip));
break;
default:
/*
* we know we'll never have a list of rectangles, since ChangeClip
* immediately turns them into a region
*/
RegionDestroy(pPicture->clientClip);
break;
}
pPicture->clientClip = NULL;
pPicture->clientClipType = CT_NONE;
}
int
miChangePictureClip (PicturePtr pPicture,
int type,
void * value,
int n)
{
ScreenPtr pScreen = pPicture->pDrawable->pScreen;
PictureScreenPtr ps = GetPictureScreen(pScreen);
void * clientClip;
int clientClipType;
switch (type) {
case CT_PIXMAP:
/* convert the pixmap to a region */
clientClip = (void *) BitmapToRegion(pScreen, (PixmapPtr) value);
if (!clientClip)
return BadAlloc;
clientClipType = CT_REGION;
(*pScreen->DestroyPixmap) ((PixmapPtr) value);
break;
case CT_REGION:
clientClip = value;
clientClipType = CT_REGION;
break;
case CT_NONE:
clientClip = 0;
clientClipType = CT_NONE;
break;
default:
clientClip = (void *) RegionFromRects(n,
(xRectangle *) value,
type);
if (!clientClip)
return BadAlloc;
clientClipType = CT_REGION;
free(value);
break;
}
(*ps->DestroyPictureClip) (pPicture);
pPicture->clientClip = clientClip;
pPicture->clientClipType = clientClipType;
pPicture->stateChanges |= CPClipMask;
return Success;
}
void
miChangePicture (PicturePtr pPicture,
Mask mask)
{
return;
}
void
miValidatePicture (PicturePtr pPicture,
Mask mask)
{
DrawablePtr pDrawable = pPicture->pDrawable;
if ((mask & (CPClipXOrigin|CPClipYOrigin|CPClipMask|CPSubwindowMode)) ||
(pDrawable->serialNumber != (pPicture->serialNumber & DRAWABLE_SERIAL_BITS)))
{
if (pDrawable->type == DRAWABLE_WINDOW)
{
WindowPtr pWin = (WindowPtr) pDrawable;
RegionPtr pregWin;
Bool freeTmpClip, freeCompClip;
if (pPicture->subWindowMode == IncludeInferiors)
{
pregWin = NotClippedByChildren(pWin);
freeTmpClip = TRUE;
}
else
{
pregWin = &pWin->clipList;
freeTmpClip = FALSE;
}
freeCompClip = pPicture->freeCompClip;
/*
* if there is no client clip, we can get by with just keeping the
* pointer we got, and remembering whether or not should destroy
* (or maybe re-use) it later. this way, we avoid unnecessary
* copying of regions. (this wins especially if many clients clip
* by children and have no client clip.)
*/
if (pPicture->clientClipType == CT_NONE)
{
if (freeCompClip)
RegionDestroy(pPicture->pCompositeClip);
pPicture->pCompositeClip = pregWin;
pPicture->freeCompClip = freeTmpClip;
}
else
{
/*
* we need one 'real' region to put into the composite clip. if
* pregWin the current composite clip are real, we can get rid of
* one. if pregWin is real and the current composite clip isn't,
* use pregWin for the composite clip. if the current composite
* clip is real and pregWin isn't, use the current composite
* clip. if neither is real, create a new region.
*/
RegionTranslate(pPicture->clientClip,
pDrawable->x + pPicture->clipOrigin.x,
pDrawable->y + pPicture->clipOrigin.y);
if (freeCompClip)
{
RegionIntersect(pPicture->pCompositeClip,
pregWin, pPicture->clientClip);
if (freeTmpClip)
RegionDestroy(pregWin);
}
else if (freeTmpClip)
{
RegionIntersect(pregWin, pregWin, pPicture->clientClip);
pPicture->pCompositeClip = pregWin;
}
else
{
pPicture->pCompositeClip = RegionCreate(NullBox, 0);
RegionIntersect(pPicture->pCompositeClip,
pregWin, pPicture->clientClip);
}
pPicture->freeCompClip = TRUE;
RegionTranslate(pPicture->clientClip,
-(pDrawable->x + pPicture->clipOrigin.x),
-(pDrawable->y + pPicture->clipOrigin.y));
}
} /* end of composite clip for a window */
else
{
BoxRec pixbounds;
/* XXX should we translate by drawable.x/y here ? */
/* If you want pixmaps in offscreen memory, yes */
pixbounds.x1 = pDrawable->x;
pixbounds.y1 = pDrawable->y;
pixbounds.x2 = pDrawable->x + pDrawable->width;
pixbounds.y2 = pDrawable->y + pDrawable->height;
if (pPicture->freeCompClip)
{
RegionReset(pPicture->pCompositeClip, &pixbounds);
}
else
{
pPicture->freeCompClip = TRUE;
pPicture->pCompositeClip = RegionCreate(&pixbounds, 1);
}
if (pPicture->clientClipType == CT_REGION)
{
if(pDrawable->x || pDrawable->y) {
RegionTranslate(pPicture->clientClip,
pDrawable->x + pPicture->clipOrigin.x,
pDrawable->y + pPicture->clipOrigin.y);
RegionIntersect(pPicture->pCompositeClip,
pPicture->pCompositeClip, pPicture->clientClip);
RegionTranslate(pPicture->clientClip,
-(pDrawable->x + pPicture->clipOrigin.x),
-(pDrawable->y + pPicture->clipOrigin.y));
} else {
RegionTranslate(pPicture->pCompositeClip,
-pPicture->clipOrigin.x, -pPicture->clipOrigin.y);
RegionIntersect(pPicture->pCompositeClip,
pPicture->pCompositeClip, pPicture->clientClip);
RegionTranslate(pPicture->pCompositeClip,
pPicture->clipOrigin.x, pPicture->clipOrigin.y);
}
}
} /* end of composite clip for pixmap */
}
}
int
miChangePictureTransform (PicturePtr pPicture,
PictTransform *transform)
{
return Success;
}
int
miChangePictureFilter (PicturePtr pPicture,
int filter,
xFixed *params,
int nparams)
{
return Success;
}
#define BOUND(v) (INT16) ((v) < MINSHORT ? MINSHORT : (v) > MAXSHORT ? MAXSHORT : (v))
static __inline Bool
miClipPictureReg (RegionPtr pRegion,
RegionPtr pClip,
int dx,
int dy)
{
if (RegionNumRects(pRegion) == 1 &&
RegionNumRects(pClip) == 1)
{
BoxPtr pRbox = RegionRects(pRegion);
BoxPtr pCbox = RegionRects(pClip);
int v;
if (pRbox->x1 < (v = pCbox->x1 + dx))
pRbox->x1 = BOUND(v);
if (pRbox->x2 > (v = pCbox->x2 + dx))
pRbox->x2 = BOUND(v);
if (pRbox->y1 < (v = pCbox->y1 + dy))
pRbox->y1 = BOUND(v);
if (pRbox->y2 > (v = pCbox->y2 + dy))
pRbox->y2 = BOUND(v);
if (pRbox->x1 >= pRbox->x2 ||
pRbox->y1 >= pRbox->y2)
{
RegionEmpty(pRegion);
}
}
else if (!RegionNotEmpty(pClip))
return FALSE;
else
{
if (dx || dy)
RegionTranslate(pRegion, -dx, -dy);
if (!RegionIntersect(pRegion, pRegion, pClip))
return FALSE;
if (dx || dy)
RegionTranslate(pRegion, dx, dy);
}
return RegionNotEmpty(pRegion);
}
static __inline Bool
miClipPictureSrc (RegionPtr pRegion,
PicturePtr pPicture,
int dx,
int dy)
{
/* XXX what to do with clipping from transformed pictures? */
if (pPicture->transform || !pPicture->pDrawable)
return TRUE;
if (pPicture->repeat)
{
if (pPicture->clientClipType != CT_NONE)
{
RegionTranslate(pRegion,
dx - pPicture->clipOrigin.x,
dy - pPicture->clipOrigin.y);
if (!RegionIntersect(pRegion, pRegion,
(RegionPtr) pPicture->clientClip))
return FALSE;
RegionTranslate(pRegion,
- (dx - pPicture->clipOrigin.x),
- (dy - pPicture->clipOrigin.y));
}
return TRUE;
}
else
{
return miClipPictureReg (pRegion,
pPicture->pCompositeClip,
dx,
dy);
}
}
static void
miCompositeSourceValidate (PicturePtr pPicture,
INT16 x,
INT16 y,
CARD16 width,
CARD16 height)
{
DrawablePtr pDrawable = pPicture->pDrawable;
ScreenPtr pScreen;
if (!pDrawable)
return;
pScreen = pDrawable->pScreen;
if (pScreen->SourceValidate)
{
x -= pPicture->pDrawable->x;
y -= pPicture->pDrawable->y;
if (pPicture->transform)
{
xPoint points[4];
int i;
int xmin, ymin, xmax, ymax;
#define VectorSet(i,_x,_y) { points[i].x = _x; points[i].y = _y; }
VectorSet (0, x, y);
VectorSet (1, x + width, y);
VectorSet (2, x, y + height);
VectorSet (3, x + width, y + height);
xmin = ymin = 32767;
xmax = ymax = -32737;
for (i = 0; i < 4; i++)
{
PictVector t;
t.vector[0] = IntToxFixed (points[i].x);
t.vector[1] = IntToxFixed (points[i].y);
t.vector[2] = xFixed1;
if (PictureTransformPoint (pPicture->transform, &t))
{
int tx = xFixedToInt (t.vector[0]);
int ty = xFixedToInt (t.vector[1]);
if (tx < xmin) xmin = tx;
if (tx > xmax) xmax = tx;
if (ty < ymin) ymin = ty;
if (ty > ymax) ymax = ty;
}
}
x = xmin;
y = ymin;
width = xmax - xmin;
height = ymax - ymin;
}
(*pScreen->SourceValidate) (pDrawable, x, y, width, height);
}
}
/*
* returns FALSE if the final region is empty. Indistinguishable from
* an allocation failure, but rendering ignores those anyways.
*/
Bool
miComputeCompositeRegion (RegionPtr pRegion,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
int v;
pRegion->extents.x1 = xDst;
v = xDst + width;
pRegion->extents.x2 = BOUND(v);
pRegion->extents.y1 = yDst;
v = yDst + height;
pRegion->extents.y2 = BOUND(v);
pRegion->data = 0;
/* Check for empty operation */
if (pRegion->extents.x1 >= pRegion->extents.x2 ||
pRegion->extents.y1 >= pRegion->extents.y2)
{
RegionEmpty(pRegion);
return FALSE;
}
/* clip against dst */
if (!miClipPictureReg (pRegion, pDst->pCompositeClip, 0, 0))
{
RegionUninit(pRegion);
return FALSE;
}
if (pDst->alphaMap)
{
if (!miClipPictureReg (pRegion, pDst->alphaMap->pCompositeClip,
-pDst->alphaOrigin.x,
-pDst->alphaOrigin.y))
{
RegionUninit(pRegion);
return FALSE;
}
}
/* clip against src */
if (!miClipPictureSrc (pRegion, pSrc, xDst - xSrc, yDst - ySrc))
{
RegionUninit(pRegion);
return FALSE;
}
if (pSrc->alphaMap)
{
if (!miClipPictureSrc (pRegion, pSrc->alphaMap,
xDst - (xSrc + pSrc->alphaOrigin.x),
yDst - (ySrc + pSrc->alphaOrigin.y)))
{
RegionUninit(pRegion);
return FALSE;
}
}
/* clip against mask */
if (pMask)
{
if (!miClipPictureSrc (pRegion, pMask, xDst - xMask, yDst - yMask))
{
RegionUninit(pRegion);
return FALSE;
}
if (pMask->alphaMap)
{
if (!miClipPictureSrc (pRegion, pMask->alphaMap,
xDst - (xMask + pMask->alphaOrigin.x),
yDst - (yMask + pMask->alphaOrigin.y)))
{
RegionUninit(pRegion);
return FALSE;
}
}
}
miCompositeSourceValidate (pSrc, xSrc, ySrc, width, height);
if (pMask)
miCompositeSourceValidate (pMask, xMask, yMask, width, height);
return TRUE;
}
void
miRenderColorToPixel (PictFormatPtr format,
xRenderColor *color,
CARD32 *pixel)
{
CARD32 r, g, b, a;
miIndexedPtr pIndexed;
switch (format->type) {
case PictTypeDirect:
r = color->red >> (16 - Ones (format->direct.redMask));
g = color->green >> (16 - Ones (format->direct.greenMask));
b = color->blue >> (16 - Ones (format->direct.blueMask));
a = color->alpha >> (16 - Ones (format->direct.alphaMask));
r = r << format->direct.red;
g = g << format->direct.green;
b = b << format->direct.blue;
a = a << format->direct.alpha;
*pixel = r|g|b|a;
break;
case PictTypeIndexed:
pIndexed = (miIndexedPtr) (format->index.devPrivate);
if (pIndexed->color)
{
r = color->red >> 11;
g = color->green >> 11;
b = color->blue >> 11;
*pixel = miIndexToEnt15 (pIndexed, (r << 10) | (g << 5) | b);
}
else
{
r = color->red >> 8;
g = color->green >> 8;
b = color->blue >> 8;
*pixel = miIndexToEntY24 (pIndexed, (r << 16) | (g << 8) | b);
}
break;
}
}
static CARD16
miFillColor (CARD32 pixel, int bits)
{
while (bits < 16)
{
pixel |= pixel << bits;
bits <<= 1;
}
return (CARD16) pixel;
}
Bool
miIsSolidAlpha (PicturePtr pSrc)
{
ScreenPtr pScreen;
char line[1];
if (!pSrc->pDrawable)
return FALSE;
pScreen = pSrc->pDrawable->pScreen;
/* Alpha-only */
if (PICT_FORMAT_TYPE (pSrc->format) != PICT_TYPE_A)
return FALSE;
/* repeat */
if (!pSrc->repeat)
return FALSE;
/* 1x1 */
if (pSrc->pDrawable->width != 1 || pSrc->pDrawable->height != 1)
return FALSE;
line[0] = 1;
(*pScreen->GetImage) (pSrc->pDrawable, 0, 0, 1, 1, ZPixmap, ~0L, line);
switch (pSrc->pDrawable->bitsPerPixel) {
case 1:
return (CARD8) line[0] == 1 || (CARD8) line[0] == 0x80;
case 4:
return (CARD8) line[0] == 0xf || (CARD8) line[0] == 0xf0;
case 8:
return (CARD8) line[0] == 0xff;
default:
return FALSE;
}
}
void
miRenderPixelToColor (PictFormatPtr format,
CARD32 pixel,
xRenderColor *color)
{
CARD32 r, g, b, a;
miIndexedPtr pIndexed;
switch (format->type) {
case PictTypeDirect:
r = (pixel >> format->direct.red) & format->direct.redMask;
g = (pixel >> format->direct.green) & format->direct.greenMask;
b = (pixel >> format->direct.blue) & format->direct.blueMask;
a = (pixel >> format->direct.alpha) & format->direct.alphaMask;
color->red = miFillColor (r, Ones (format->direct.redMask));
color->green = miFillColor (g, Ones (format->direct.greenMask));
color->blue = miFillColor (b, Ones (format->direct.blueMask));
color->alpha = miFillColor (a, Ones (format->direct.alphaMask));
break;
case PictTypeIndexed:
pIndexed = (miIndexedPtr) (format->index.devPrivate);
pixel = pIndexed->rgba[pixel & (MI_MAX_INDEXED-1)];
r = (pixel >> 16) & 0xff;
g = (pixel >> 8) & 0xff;
b = (pixel ) & 0xff;
color->red = miFillColor (r, 8);
color->green = miFillColor (g, 8);
color->blue = miFillColor (b, 8);
color->alpha = 0xffff;
break;
}
}
Bool
miPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)
{
PictureScreenPtr ps;
if (!PictureInit (pScreen, formats, nformats))
return FALSE;
ps = GetPictureScreen(pScreen);
ps->CreatePicture = miCreatePicture;
ps->DestroyPicture = miDestroyPicture;
ps->ChangePictureClip = miChangePictureClip;
ps->DestroyPictureClip = miDestroyPictureClip;
ps->ChangePicture = miChangePicture;
ps->ValidatePicture = miValidatePicture;
ps->InitIndexed = miInitIndexed;
ps->CloseIndexed = miCloseIndexed;
ps->UpdateIndexed = miUpdateIndexed;
ps->ChangePictureTransform = miChangePictureTransform;
ps->ChangePictureFilter = miChangePictureFilter;
/* MI rendering routines */
ps->Composite = 0; /* requires DDX support */
ps->Glyphs = miGlyphs;
ps->CompositeRects = miCompositeRects;
ps->Trapezoids = miTrapezoids;
ps->Triangles = miTriangles;
ps->TriStrip = miTriStrip;
ps->TriFan = miTriFan;
ps->RasterizeTrapezoid = 0; /* requires DDX support */
ps->AddTraps = 0; /* requires DDX support */
ps->AddTriangles = 0; /* requires DDX support */
return TRUE;
}

214
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/*
* Copyright © 2000 SuSE, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE 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.
*
* Author: Keith Packard, SuSE, Inc.
*/
#ifndef _MIPICT_H_
#define _MIPICT_H_
#include "picturestr.h"
#define MI_MAX_INDEXED 256 /* XXX depth must be <= 8 */
#if MI_MAX_INDEXED <= 256
typedef CARD8 miIndexType;
#endif
typedef struct _miIndexed {
Bool color;
CARD32 rgba[MI_MAX_INDEXED];
miIndexType ent[32768];
} miIndexedRec, *miIndexedPtr;
#define miCvtR8G8B8to15(s) ((((s) >> 3) & 0x001f) | \
(((s) >> 6) & 0x03e0) | \
(((s) >> 9) & 0x7c00))
#define miIndexToEnt15(mif,rgb15) ((mif)->ent[rgb15])
#define miIndexToEnt24(mif,rgb24) miIndexToEnt15(mif,miCvtR8G8B8to15(rgb24))
#define miIndexToEntY24(mif,rgb24) ((mif)->ent[CvtR8G8B8toY15(rgb24)])
int
miCreatePicture (PicturePtr pPicture);
void
miDestroyPicture (PicturePtr pPicture);
void
miDestroyPictureClip (PicturePtr pPicture);
int
miChangePictureClip (PicturePtr pPicture,
int type,
void * value,
int n);
void
miChangePicture (PicturePtr pPicture,
Mask mask);
void
miValidatePicture (PicturePtr pPicture,
Mask mask);
int
miChangePictureTransform (PicturePtr pPicture,
PictTransform *transform);
int
miChangePictureFilter (PicturePtr pPicture,
int filter,
xFixed *params,
int nparams);
Bool
miClipPicture (RegionPtr pRegion,
PicturePtr pPicture,
INT16 xReg,
INT16 yReg,
INT16 xPict,
INT16 yPict);
Bool
miComputeCompositeRegion (RegionPtr pRegion,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height);
Bool
miPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats);
void
miGlyphs (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int nlist,
GlyphListPtr list,
GlyphPtr *glyphs);
void
miRenderColorToPixel (PictFormatPtr pPict,
xRenderColor *color,
CARD32 *pixel);
void
miRenderPixelToColor (PictFormatPtr pPict,
CARD32 pixel,
xRenderColor *color);
Bool
miIsSolidAlpha (PicturePtr pSrc);
void
miCompositeRects (CARD8 op,
PicturePtr pDst,
xRenderColor *color,
int nRect,
xRectangle *rects);
void
miTrapezoidBounds (int ntrap, xTrapezoid *traps, BoxPtr box);
void
miTrapezoids (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntrap,
xTrapezoid *traps);
void
miPointFixedBounds (int npoint, xPointFixed *points, BoxPtr bounds);
void
miTriangleBounds (int ntri, xTriangle *tris, BoxPtr bounds);
void
miRasterizeTriangle (PicturePtr pMask,
xTriangle *tri,
int x_off,
int y_off);
void
miTriangles (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntri,
xTriangle *tris);
void
miTriStrip (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int npoint,
xPointFixed *points);
void
miTriFan (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int npoint,
xPointFixed *points);
PicturePtr
miCreateAlphaPicture (ScreenPtr pScreen,
PicturePtr pDst,
PictFormatPtr pPictFormat,
CARD16 width,
CARD16 height);
Bool
miInitIndexed (ScreenPtr pScreen,
PictFormatPtr pFormat);
void
miCloseIndexed (ScreenPtr pScreen,
PictFormatPtr pFormat);
void
miUpdateIndexed (ScreenPtr pScreen,
PictFormatPtr pFormat,
int ndef,
xColorItem *pdef);
#endif /* _MIPICT_H_ */

185
nx-X11/programs/Xserver/render/mirect.c Normal file
View File

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/*
* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "scrnintstr.h"
#include "gcstruct.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "mi.h"
#include "picturestr.h"
#include "mipict.h"
static void
miColorRects (PicturePtr pDst,
PicturePtr pClipPict,
xRenderColor *color,
int nRect,
xRectangle *rects,
int xoff,
int yoff)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
CARD32 pixel;
GCPtr pGC;
CARD32 tmpval[5];
RegionPtr pClip;
unsigned long mask;
miRenderColorToPixel (pDst->pFormat, color, &pixel);
pGC = GetScratchGC (pDst->pDrawable->depth, pScreen);
if (!pGC)
return;
tmpval[0] = GXcopy;
tmpval[1] = pixel;
tmpval[2] = pDst->subWindowMode;
mask = GCFunction | GCForeground | GCSubwindowMode;
if (pClipPict->clientClipType == CT_REGION)
{
tmpval[3] = pDst->clipOrigin.x - xoff;
tmpval[4] = pDst->clipOrigin.y - yoff;
mask |= GCClipXOrigin|GCClipYOrigin;
pClip = RegionCreate(NULL, 1);
RegionCopy(pClip,
(RegionPtr) pClipPict->clientClip);
(*pGC->funcs->ChangeClip) (pGC, CT_REGION, pClip, 0);
}
ChangeGC (pGC, mask, tmpval);
ValidateGC (pDst->pDrawable, pGC);
if (xoff || yoff)
{
int i;
for (i = 0; i < nRect; i++)
{
rects[i].x -= xoff;
rects[i].y -= yoff;
}
}
(*pGC->ops->PolyFillRect) (pDst->pDrawable, pGC, nRect, rects);
if (xoff || yoff)
{
int i;
for (i = 0; i < nRect; i++)
{
rects[i].x += xoff;
rects[i].y += yoff;
}
}
FreeScratchGC (pGC);
}
void
miCompositeRects (CARD8 op,
PicturePtr pDst,
xRenderColor *color,
int nRect,
xRectangle *rects)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
if (color->alpha == 0xffff)
{
if (op == PictOpOver)
op = PictOpSrc;
}
if (op == PictOpClear)
color->red = color->green = color->blue = color->alpha = 0;
if (op == PictOpSrc || op == PictOpClear)
{
miColorRects (pDst, pDst, color, nRect, rects, 0, 0);
if (pDst->alphaMap)
miColorRects (pDst->alphaMap, pDst,
color, nRect, rects,
pDst->alphaOrigin.x,
pDst->alphaOrigin.y);
}
else
{
PictFormatPtr rgbaFormat;
PixmapPtr pPixmap;
PicturePtr pSrc;
xRectangle one;
int error;
Pixel pixel;
GCPtr pGC;
CARD32 tmpval[2];
rgbaFormat = PictureMatchFormat (pScreen, 32, PICT_a8r8g8b8);
if (!rgbaFormat)
goto bail1;
pPixmap = (*pScreen->CreatePixmap) (pScreen, 1, 1,
rgbaFormat->depth,
CREATE_PIXMAP_USAGE_SCRATCH);
if (!pPixmap)
goto bail2;
miRenderColorToPixel (rgbaFormat, color, &pixel);
pGC = GetScratchGC (rgbaFormat->depth, pScreen);
if (!pGC)
goto bail3;
tmpval[0] = GXcopy;
tmpval[1] = pixel;
ChangeGC (pGC, GCFunction | GCForeground, tmpval);
ValidateGC (&pPixmap->drawable, pGC);
one.x = 0;
one.y = 0;
one.width = 1;
one.height = 1;
(*pGC->ops->PolyFillRect) (&pPixmap->drawable, pGC, 1, &one);
tmpval[0] = xTrue;
pSrc = CreatePicture (0, &pPixmap->drawable, rgbaFormat,
CPRepeat, tmpval, 0, &error);
if (!pSrc)
goto bail4;
while (nRect--)
{
CompositePicture (op, pSrc, 0, pDst, 0, 0, 0, 0,
rects->x,
rects->y,
rects->width,
rects->height);
rects++;
}
FreePicture ((void *) pSrc, 0);
bail4:
FreeScratchGC (pGC);
bail3:
(*pScreen->DestroyPixmap) (pPixmap);
bail2:
bail1:
;
}
}

190
nx-X11/programs/Xserver/render/mitrap.c Normal file
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/*
* Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "scrnintstr.h"
#include "gcstruct.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "servermd.h"
#include "mi.h"
#include "picturestr.h"
#include "mipict.h"
PicturePtr
miCreateAlphaPicture (ScreenPtr pScreen,
PicturePtr pDst,
PictFormatPtr pPictFormat,
CARD16 width,
CARD16 height)
{
PixmapPtr pPixmap;
PicturePtr pPicture;
GCPtr pGC;
int error;
xRectangle rect;
if (width > 32767 || height > 32767)
return 0;
if (!pPictFormat)
{
if (pDst->polyEdge == PolyEdgeSharp)
pPictFormat = PictureMatchFormat (pScreen, 1, PICT_a1);
else
pPictFormat = PictureMatchFormat (pScreen, 8, PICT_a8);
if (!pPictFormat)
return 0;
}
pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height,
pPictFormat->depth, 0);
if (!pPixmap)
return 0;
pGC = GetScratchGC (pPixmap->drawable.depth, pScreen);
if (!pGC)
{
(*pScreen->DestroyPixmap) (pPixmap);
return 0;
}
ValidateGC (&pPixmap->drawable, pGC);
rect.x = 0;
rect.y = 0;
rect.width = width;
rect.height = height;
(*pGC->ops->PolyFillRect)(&pPixmap->drawable, pGC, 1, &rect);
FreeScratchGC (pGC);
pPicture = CreatePicture (0, &pPixmap->drawable, pPictFormat,
0, 0, serverClient, &error);
(*pScreen->DestroyPixmap) (pPixmap);
return pPicture;
}
static xFixed
miLineFixedX (xLineFixed *l, xFixed y, Bool ceil)
{
xFixed dx = l->p2.x - l->p1.x;
xFixed_32_32 ex = (xFixed_32_32) (y - l->p1.y) * dx;
xFixed dy = l->p2.y - l->p1.y;
if (ceil)
ex += (dy - 1);
return l->p1.x + (xFixed) (ex / dy);
}
void
miTrapezoidBounds (int ntrap, xTrapezoid *traps, BoxPtr box)
{
box->y1 = MAXSHORT;
box->y2 = MINSHORT;
box->x1 = MAXSHORT;
box->x2 = MINSHORT;
for (; ntrap; ntrap--, traps++)
{
INT16 x1, y1, x2, y2;
if (!xTrapezoidValid(traps))
continue;
y1 = xFixedToInt (traps->top);
if (y1 < box->y1)
box->y1 = y1;
y2 = xFixedToInt (xFixedCeil (traps->bottom));
if (y2 > box->y2)
box->y2 = y2;
x1 = xFixedToInt (min (miLineFixedX (&traps->left, traps->top, FALSE),
miLineFixedX (&traps->left, traps->bottom, FALSE)));
if (x1 < box->x1)
box->x1 = x1;
x2 = xFixedToInt (xFixedCeil (max (miLineFixedX (&traps->right, traps->top, TRUE),
miLineFixedX (&traps->right, traps->bottom, TRUE))));
if (x2 > box->x2)
box->x2 = x2;
}
}
#ifndef NXAGENT_SERVER
void
miTrapezoids (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntrap,
xTrapezoid *traps)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
PictureScreenPtr ps = GetPictureScreen(pScreen);
/*
* Check for solid alpha add
*/
if (op == PictOpAdd && miIsSolidAlpha (pSrc))
{
for (; ntrap; ntrap--, traps++)
(*ps->RasterizeTrapezoid) (pDst, traps, 0, 0);
}
else if (maskFormat)
{
PicturePtr pPicture;
BoxRec bounds;
INT16 xDst, yDst;
INT16 xRel, yRel;
xDst = traps[0].left.p1.x >> 16;
yDst = traps[0].left.p1.y >> 16;
miTrapezoidBounds (ntrap, traps, &bounds);
if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
return;
pPicture = miCreateAlphaPicture (pScreen, pDst, maskFormat,
bounds.x2 - bounds.x1,
bounds.y2 - bounds.y1);
if (!pPicture)
return;
for (; ntrap; ntrap--, traps++)
(*ps->RasterizeTrapezoid) (pPicture, traps,
-bounds.x1, -bounds.y1);
xRel = bounds.x1 + xSrc - xDst;
yRel = bounds.y1 + ySrc - yDst;
CompositePicture (op, pSrc, pPicture, pDst,
xRel, yRel, 0, 0, bounds.x1, bounds.y1,
bounds.x2 - bounds.x1,
bounds.y2 - bounds.y1);
FreePicture (pPicture, 0);
}
else
{
if (pDst->polyEdge == PolyEdgeSharp)
maskFormat = PictureMatchFormat (pScreen, 1, PICT_a1);
else
maskFormat = PictureMatchFormat (pScreen, 8, PICT_a8);
for (; ntrap; ntrap--, traps++)
miTrapezoids (op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, traps);
}
}
#endif

190
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/*
* Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "scrnintstr.h"
#include "gcstruct.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "mi.h"
#include "picturestr.h"
#include "mipict.h"
void
miPointFixedBounds (int npoint, xPointFixed *points, BoxPtr bounds)
{
bounds->x1 = xFixedToInt (points->x);
bounds->x2 = xFixedToInt (xFixedCeil (points->x));
bounds->y1 = xFixedToInt (points->y);
bounds->y2 = xFixedToInt (xFixedCeil (points->y));
points++;
npoint--;
while (npoint-- > 0)
{
INT16 x1 = xFixedToInt (points->x);
INT16 x2 = xFixedToInt (xFixedCeil (points->x));
INT16 y1 = xFixedToInt (points->y);
INT16 y2 = xFixedToInt (xFixedCeil (points->y));
if (x1 < bounds->x1)
bounds->x1 = x1;
else if (x2 > bounds->x2)
bounds->x2 = x2;
if (y1 < bounds->y1)
bounds->y1 = y1;
else if (y2 > bounds->y2)
bounds->y2 = y2;
points++;
}
}
void
miTriangleBounds (int ntri, xTriangle *tris, BoxPtr bounds)
{
miPointFixedBounds (ntri * 3, (xPointFixed *) tris, bounds);
}
void
miTriangles (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntri,
xTriangle *tris)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
PictureScreenPtr ps = GetPictureScreen(pScreen);
/*
* Check for solid alpha add
*/
if (op == PictOpAdd && miIsSolidAlpha (pSrc))
{
(*ps->AddTriangles) (pDst, 0, 0, ntri, tris);
}
else if (maskFormat)
{
BoxRec bounds;
PicturePtr pPicture;
INT16 xDst, yDst;
INT16 xRel, yRel;
xDst = tris[0].p1.x >> 16;
yDst = tris[0].p1.y >> 16;
miTriangleBounds (ntri, tris, &bounds);
if (bounds.x2 <= bounds.x1 || bounds.y2 <= bounds.y1)
return;
pPicture = miCreateAlphaPicture (pScreen, pDst, maskFormat,
bounds.x2 - bounds.x1,
bounds.y2 - bounds.y1);
if (!pPicture)
return;
(*ps->AddTriangles) (pPicture, -bounds.x1, -bounds.y1, ntri, tris);
xRel = bounds.x1 + xSrc - xDst;
yRel = bounds.y1 + ySrc - yDst;
CompositePicture (op, pSrc, pPicture, pDst,
xRel, yRel, 0, 0, bounds.x1, bounds.y1,
bounds.x2 - bounds.x1, bounds.y2 - bounds.y1);
FreePicture (pPicture, 0);
}
else
{
if (pDst->polyEdge == PolyEdgeSharp)
maskFormat = PictureMatchFormat (pScreen, 1, PICT_a1);
else
maskFormat = PictureMatchFormat (pScreen, 8, PICT_a8);
for (; ntri; ntri--, tris++)
miTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, tris);
}
}
void
miTriStrip (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int npoint,
xPointFixed *points)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
PictureScreenPtr ps = GetPictureScreen(pScreen);
xTriangle *tris, *tri;
int ntri;
if (npoint < 3)
return;
ntri = npoint - 2;
tris = malloc (ntri * sizeof (xTriangle));
if (!tris)
return;
for (tri = tris; npoint >= 3; npoint--, points++, tri++)
{
tri->p1 = points[0];
tri->p2 = points[1];
tri->p3 = points[2];
}
(*ps->Triangles) (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);
free (tris);
}
void
miTriFan (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int npoint,
xPointFixed *points)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
PictureScreenPtr ps = GetPictureScreen(pScreen);
xTriangle *tris, *tri;
xPointFixed *first;
int ntri;
if (npoint < 3)
return;
ntri = npoint - 2;
tris = malloc (ntri * sizeof (xTriangle));
if (!tris)
return;
first = points++;
for (tri = tris; npoint >= 3; npoint--, points++, tri++)
{
tri->p1 = *first;
tri->p2 = points[0];
tri->p3 = points[1];
}
(*ps->Triangles) (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);
free (tris);
}

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/*
*
* Copyright © 2000 SuSE, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE 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.
*
* Author: Keith Packard, SuSE, Inc.
*/
#ifndef _PICTURE_H_
#define _PICTURE_H_
typedef struct _DirectFormat *DirectFormatPtr;
typedef struct _PictFormat *PictFormatPtr;
typedef struct _Picture *PicturePtr;
/*
* While the protocol is generous in format support, the
* sample implementation allows only packed RGB and GBR
* representations for data to simplify software rendering,
*/
#define PICT_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) | \
((type) << 16) | \
((a) << 12) | \
((r) << 8) | \
((g) << 4) | \
((b)))
/*
* gray/color formats use a visual index instead of argb
*/
#define PICT_VISFORMAT(bpp,type,vi) (((bpp) << 24) | \
((type) << 16) | \
((vi)))
#define PICT_FORMAT_BPP(f) (((f) >> 24) )
#define PICT_FORMAT_TYPE(f) (((f) >> 16) & 0xff)
#define PICT_FORMAT_A(f) (((f) >> 12) & 0x0f)
#define PICT_FORMAT_R(f) (((f) >> 8) & 0x0f)
#define PICT_FORMAT_G(f) (((f) >> 4) & 0x0f)
#define PICT_FORMAT_B(f) (((f) ) & 0x0f)
#define PICT_FORMAT_RGB(f) (((f) ) & 0xfff)
#define PICT_FORMAT_VIS(f) (((f) ) & 0xffff)
#define PICT_TYPE_OTHER 0
#define PICT_TYPE_A 1
#define PICT_TYPE_ARGB 2
#define PICT_TYPE_ABGR 3
#define PICT_TYPE_COLOR 4
#define PICT_TYPE_GRAY 5
#define PICT_FORMAT_COLOR(f) (PICT_FORMAT_TYPE(f) & 2)
/* 32bpp formats */
#define PICT_a8r8g8b8 PICT_FORMAT(32,PICT_TYPE_ARGB,8,8,8,8)
#define PICT_x8r8g8b8 PICT_FORMAT(32,PICT_TYPE_ARGB,0,8,8,8)
#define PICT_a8b8g8r8 PICT_FORMAT(32,PICT_TYPE_ABGR,8,8,8,8)
#define PICT_x8b8g8r8 PICT_FORMAT(32,PICT_TYPE_ABGR,0,8,8,8)
/* 24bpp formats */
#define PICT_r8g8b8 PICT_FORMAT(24,PICT_TYPE_ARGB,0,8,8,8)
#define PICT_b8g8r8 PICT_FORMAT(24,PICT_TYPE_ABGR,0,8,8,8)
/* 16bpp formats */
#define PICT_r5g6b5 PICT_FORMAT(16,PICT_TYPE_ARGB,0,5,6,5)
#define PICT_b5g6r5 PICT_FORMAT(16,PICT_TYPE_ABGR,0,5,6,5)
#define PICT_a1r5g5b5 PICT_FORMAT(16,PICT_TYPE_ARGB,1,5,5,5)
#define PICT_x1r5g5b5 PICT_FORMAT(16,PICT_TYPE_ARGB,0,5,5,5)
#define PICT_a1b5g5r5 PICT_FORMAT(16,PICT_TYPE_ABGR,1,5,5,5)
#define PICT_x1b5g5r5 PICT_FORMAT(16,PICT_TYPE_ABGR,0,5,5,5)
#define PICT_a4r4g4b4 PICT_FORMAT(16,PICT_TYPE_ARGB,4,4,4,4)
#define PICT_x4r4g4b4 PICT_FORMAT(16,PICT_TYPE_ARGB,0,4,4,4)
#define PICT_a4b4g4r4 PICT_FORMAT(16,PICT_TYPE_ABGR,4,4,4,4)
#define PICT_x4b4g4r4 PICT_FORMAT(16,PICT_TYPE_ABGR,0,4,4,4)
/* 8bpp formats */
#define PICT_a8 PICT_FORMAT(8,PICT_TYPE_A,8,0,0,0)
#define PICT_r3g3b2 PICT_FORMAT(8,PICT_TYPE_ARGB,0,3,3,2)
#define PICT_b2g3r3 PICT_FORMAT(8,PICT_TYPE_ABGR,0,3,3,2)
#define PICT_a2r2g2b2 PICT_FORMAT(8,PICT_TYPE_ARGB,2,2,2,2)
#define PICT_a2b2g2r2 PICT_FORMAT(8,PICT_TYPE_ABGR,2,2,2,2)
#define PICT_c8 PICT_FORMAT(8,PICT_TYPE_COLOR,0,0,0,0)
#define PICT_g8 PICT_FORMAT(8,PICT_TYPE_GRAY,0,0,0,0)
#define PICT_x4a4 PICT_FORMAT(8,PICT_TYPE_A,4,0,0,0)
#define PICT_x4r1g2b1 PICT_FORMAT(8,PICT_TYPE_ARGB,0,1,2,1)
#define PICT_x4b1g2r1 PICT_FORMAT(8,PICT_TYPE_ABGR,0,1,2,1)
#define PICT_x4a1r1g1b1 PICT_FORMAT(8,PICT_TYPE_ARGB,1,1,1,1)
#define PICT_x4a1b1g1r1 PICT_FORMAT(8,PICT_TYPE_ABGR,1,1,1,1)
#define PICT_x4c4 PICT_FORMAT(8,PICT_TYPE_COLOR,0,0,0,0)
#define PICT_x4g4 PICT_FORMAT(8,PICT_TYPE_GRAY,0,0,0,0)
/* 4bpp formats */
#define PICT_a4 PICT_FORMAT(4,PICT_TYPE_A,4,0,0,0)
#define PICT_r1g2b1 PICT_FORMAT(4,PICT_TYPE_ARGB,0,1,2,1)
#define PICT_b1g2r1 PICT_FORMAT(4,PICT_TYPE_ABGR,0,1,2,1)
#define PICT_a1r1g1b1 PICT_FORMAT(4,PICT_TYPE_ARGB,1,1,1,1)
#define PICT_a1b1g1r1 PICT_FORMAT(4,PICT_TYPE_ABGR,1,1,1,1)
#define PICT_c4 PICT_FORMAT(4,PICT_TYPE_COLOR,0,0,0,0)
#define PICT_g4 PICT_FORMAT(4,PICT_TYPE_GRAY,0,0,0,0)
/* 1bpp formats */
#define PICT_a1 PICT_FORMAT(1,PICT_TYPE_A,1,0,0,0)
#define PICT_g1 PICT_FORMAT(1,PICT_TYPE_GRAY,0,0,0,0)
/*
* For dynamic indexed visuals (GrayScale and PseudoColor), these control the
* selection of colors allocated for drawing to Pictures. The default
* policy depends on the size of the colormap:
*
* Size Default Policy
* ----------------------------
* < 64 PolicyMono
* < 256 PolicyGray
* 256 PolicyColor (only on PseudoColor)
*
* The actual allocation code lives in miindex.c, and so is
* austensibly server dependent, but that code does:
*
* PolicyMono Allocate no additional colors, use black and white
* PolicyGray Allocate 13 gray levels (11 cells used)
* PolicyColor Allocate a 4x4x4 cube and 13 gray levels (71 cells used)
* PolicyAll Allocate as big a cube as possible, fill with gray (all)
*
* Here's a picture to help understand how many colors are
* actually allocated (this is just the gray ramp):
*
* gray level
* all 0000 1555 2aaa 4000 5555 6aaa 8000 9555 aaaa bfff d555 eaaa ffff
* b/w 0000 ffff
* 4x4x4 5555 aaaa
* extra 1555 2aaa 4000 6aaa 8000 9555 bfff d555 eaaa
*
* The default colormap supplies two gray levels (black/white), the
* 4x4x4 cube allocates another two and nine more are allocated to fill
* in the 13 levels. When the 4x4x4 cube is not allocated, a total of
* 11 cells are allocated.
*/
#define PictureCmapPolicyInvalid -1
#define PictureCmapPolicyDefault 0
#define PictureCmapPolicyMono 1
#define PictureCmapPolicyGray 2
#define PictureCmapPolicyColor 3
#define PictureCmapPolicyAll 4
extern int PictureCmapPolicy;
int PictureParseCmapPolicy (const char *name);
extern int RenderErrBase;
extern int RenderClientPrivateIndex;
/* Fixed point updates from Carl Worth, USC, Information Sciences Institute */
#if defined(WIN32) && !defined(__GNUC__)
typedef __int64 xFixed_32_32;
#else
# if defined (_LP64) || \
defined(__alpha__) || defined(__alpha) || \
defined(ia64) || defined(__ia64__) || \
defined(__sparc64__) || \
defined(__s390x__) || \
defined(amd64) || defined (__amd64__)
typedef long xFixed_32_32;
# else
# if defined(__GNUC__) && \
((__GNUC__ > 2) || \
((__GNUC__ == 2) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ > 7)))
__extension__
# endif
typedef long long int xFixed_32_32;
# endif
#endif
typedef xFixed_32_32 xFixed_48_16;
#define MAX_FIXED_48_16 ((xFixed_48_16) 0x7fffffff)
#define MIN_FIXED_48_16 (-((xFixed_48_16) 1 << 31))
typedef CARD32 xFixed_1_31;
typedef CARD32 xFixed_1_16;
typedef INT32 xFixed_16_16;
/*
* An unadorned "xFixed" is the same as xFixed_16_16,
* (since it's quite common in the code)
*/
typedef xFixed_16_16 xFixed;
#define XFIXED_BITS 16
#define xFixedToInt(f) (int) ((f) >> XFIXED_BITS)
#define IntToxFixed(i) ((xFixed) (i) << XFIXED_BITS)
#define xFixedE ((xFixed) 1)
#define xFixed1 (IntToxFixed(1))
#define xFixed1MinusE (xFixed1 - xFixedE)
#define xFixedFrac(f) ((f) & xFixed1MinusE)
#define xFixedFloor(f) ((f) & ~xFixed1MinusE)
#define xFixedCeil(f) xFixedFloor((f) + xFixed1MinusE)
#define xFixedFraction(f) ((f) & xFixed1MinusE)
#define xFixedMod2(f) ((f) & (xFixed1 | xFixed1MinusE))
/* whether 't' is a well defined not obviously empty trapezoid */
#define xTrapezoidValid(t) ((t)->left.p1.y != (t)->left.p2.y && \
(t)->right.p1.y != (t)->right.p2.y && \
(int) ((t)->bottom - (t)->top) > 0)
/*
* Standard NTSC luminance conversions:
*
* y = r * 0.299 + g * 0.587 + b * 0.114
*
* Approximate this for a bit more speed:
*
* y = (r * 153 + g * 301 + b * 58) / 512
*
* This gives 17 bits of luminance; to get 15 bits, lop the low two
*/
#define CvtR8G8B8toY15(s) (((((s) >> 16) & 0xff) * 153 + \
(((s) >> 8) & 0xff) * 301 + \
(((s) ) & 0xff) * 58) >> 2)
#endif /* _PICTURE_H_ */

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/*
* $Id: picturestr.h,v 1.15 2005/12/09 18:35:21 ajax Exp $
*
* Copyright © 2000 SuSE, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE 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.
*
* Author: Keith Packard, SuSE, Inc.
*/
#ifndef _PICTURESTR_H_
#define _PICTURESTR_H_
#include "glyphstr.h"
#include "scrnintstr.h"
#include "resource.h"
typedef struct _DirectFormat {
CARD16 red, redMask;
CARD16 green, greenMask;
CARD16 blue, blueMask;
CARD16 alpha, alphaMask;
} DirectFormatRec;
typedef struct _IndexFormat {
VisualID vid;
ColormapPtr pColormap;
int nvalues;
xIndexValue *pValues;
void *devPrivate;
} IndexFormatRec;
typedef struct _PictFormat {
CARD32 id;
CARD32 format; /* except bpp */
unsigned char type;
unsigned char depth;
DirectFormatRec direct;
IndexFormatRec index;
} PictFormatRec;
typedef struct pixman_vector PictVector, *PictVectorPtr;
typedef struct pixman_transform PictTransform, *PictTransformPtr;
#define pict_f_transform pixman_f_transform
#define PICT_GRADIENT_STOPTABLE_SIZE 1024
#define SourcePictTypeSolidFill 0
#define SourcePictTypeLinear 1
#define SourcePictTypeRadial 2
#define SourcePictTypeConical 3
#ifdef NXAGENT_SERVER
#include "../hw/nxagent/NXpicturestr_PictSolidFill.h"
#else
typedef struct _PictSolidFill {
unsigned int type;
CARD32 color;
} PictSolidFill, *PictSolidFillPtr;
#endif /* NXAGENT_SERVER */
typedef struct _PictGradientStop {
xFixed x;
xRenderColor color;
} PictGradientStop, *PictGradientStopPtr;
typedef struct _PictGradient {
unsigned int type;
int nstops;
PictGradientStopPtr stops;
CARD32 colorTable[PICT_GRADIENT_STOPTABLE_SIZE];
} PictGradient, *PictGradientPtr;
typedef struct _PictLinearGradient {
unsigned int type;
int nstops;
PictGradientStopPtr stops;
CARD32 colorTable[PICT_GRADIENT_STOPTABLE_SIZE];
xPointFixed p1;
xPointFixed p2;
} PictLinearGradient, *PictLinearGradientPtr;
typedef struct _PictRadialGradient {
unsigned int type;
int nstops;
PictGradientStopPtr stops;
CARD32 colorTable[PICT_GRADIENT_STOPTABLE_SIZE];
double fx;
double fy;
double dx;
double dy;
double a;
double m;
double b;
} PictRadialGradient, *PictRadialGradientPtr;
typedef struct _PictConicalGradient {
unsigned int type;
int nstops;
PictGradientStopPtr stops;
CARD32 colorTable[PICT_GRADIENT_STOPTABLE_SIZE];
xPointFixed center;
xFixed angle;
} PictConicalGradient, *PictConicalGradientPtr;
typedef union _SourcePict {
unsigned int type;
PictSolidFill solidFill;
PictGradient gradient;
PictLinearGradient linear;
PictRadialGradient radial;
PictConicalGradient conical;
} SourcePict, *SourcePictPtr;
typedef struct _Picture {
DrawablePtr pDrawable;
PictFormatPtr pFormat;
CARD32 format; /* PICT_FORMAT */
int refcnt;
CARD32 id;
PicturePtr pNext; /* chain on same drawable */
unsigned int repeat : 1;
unsigned int graphicsExposures : 1;
unsigned int subWindowMode : 1;
unsigned int polyEdge : 1;
unsigned int polyMode : 1;
unsigned int freeCompClip : 1;
unsigned int clientClipType : 2;
unsigned int componentAlpha : 1;
unsigned int repeatType : 2;
unsigned int unused : 21;
PicturePtr alphaMap;
DDXPointRec alphaOrigin;
DDXPointRec clipOrigin;
void *clientClip;
Atom dither;
unsigned long stateChanges;
unsigned long serialNumber;
RegionPtr pCompositeClip;
DevUnion *devPrivates;
PictTransform *transform;
int filter;
xFixed *filter_params;
int filter_nparams;
SourcePictPtr pSourcePict;
} PictureRec;
typedef Bool (*PictFilterValidateParamsProcPtr) (ScreenPtr pScreen, int id,
xFixed *params, int nparams,
int *width, int *height);
typedef struct {
char *name;
int id;
PictFilterValidateParamsProcPtr ValidateParams;
int width, height;
} PictFilterRec, *PictFilterPtr;
#define PictFilterNearest 0
#define PictFilterBilinear 1
#define PictFilterFast 2
#define PictFilterGood 3
#define PictFilterBest 4
#define PictFilterConvolution 5
typedef struct {
char *alias;
int alias_id;
int filter_id;
} PictFilterAliasRec, *PictFilterAliasPtr;
typedef int (*CreatePictureProcPtr) (PicturePtr pPicture);
typedef void (*DestroyPictureProcPtr) (PicturePtr pPicture);
typedef int (*ChangePictureClipProcPtr) (PicturePtr pPicture,
int clipType,
void *value,
int n);
typedef void (*DestroyPictureClipProcPtr)(PicturePtr pPicture);
typedef int (*ChangePictureTransformProcPtr) (PicturePtr pPicture,
PictTransform *transform);
typedef int (*ChangePictureFilterProcPtr) (PicturePtr pPicture,
int filter,
xFixed *params,
int nparams);
typedef void (*DestroyPictureFilterProcPtr) (PicturePtr pPicture);
typedef void (*ChangePictureProcPtr) (PicturePtr pPicture,
Mask mask);
typedef void (*ValidatePictureProcPtr) (PicturePtr pPicture,
Mask mask);
typedef void (*CompositeProcPtr) (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height);
typedef void (*GlyphsProcPtr) (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int nlists,
GlyphListPtr lists,
GlyphPtr *glyphs);
typedef void (*CompositeRectsProcPtr) (CARD8 op,
PicturePtr pDst,
xRenderColor *color,
int nRect,
xRectangle *rects);
typedef void (*RasterizeTrapezoidProcPtr)(PicturePtr pMask,
xTrapezoid *trap,
int x_off,
int y_off);
typedef void (*TrapezoidsProcPtr) (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntrap,
xTrapezoid *traps);
typedef void (*TrianglesProcPtr) (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntri,
xTriangle *tris);
typedef void (*TriStripProcPtr) (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int npoint,
xPointFixed *points);
typedef void (*TriFanProcPtr) (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int npoint,
xPointFixed *points);
typedef Bool (*InitIndexedProcPtr) (ScreenPtr pScreen,
PictFormatPtr pFormat);
typedef void (*CloseIndexedProcPtr) (ScreenPtr pScreen,
PictFormatPtr pFormat);
typedef void (*UpdateIndexedProcPtr) (ScreenPtr pScreen,
PictFormatPtr pFormat,
int ndef,
xColorItem *pdef);
typedef void (*AddTrapsProcPtr) (PicturePtr pPicture,
INT16 xOff,
INT16 yOff,
int ntrap,
xTrap *traps);
typedef void (*AddTrianglesProcPtr) (PicturePtr pPicture,
INT16 xOff,
INT16 yOff,
int ntri,
xTriangle *tris);
typedef struct _PictureScreen {
int totalPictureSize;
unsigned int *PicturePrivateSizes;
int PicturePrivateLen;
PictFormatPtr formats;
PictFormatPtr fallback;
int nformats;
CreatePictureProcPtr CreatePicture;
DestroyPictureProcPtr DestroyPicture;
ChangePictureClipProcPtr ChangePictureClip;
DestroyPictureClipProcPtr DestroyPictureClip;
ChangePictureProcPtr ChangePicture;
ValidatePictureProcPtr ValidatePicture;
CompositeProcPtr Composite;
GlyphsProcPtr Glyphs;
CompositeRectsProcPtr CompositeRects;
DestroyWindowProcPtr DestroyWindow;
CloseScreenProcPtr CloseScreen;
StoreColorsProcPtr StoreColors;
InitIndexedProcPtr InitIndexed;
CloseIndexedProcPtr CloseIndexed;
UpdateIndexedProcPtr UpdateIndexed;
int subpixel;
PictFilterPtr filters;
int nfilters;
PictFilterAliasPtr filterAliases;
int nfilterAliases;
ChangePictureTransformProcPtr ChangePictureTransform;
/**
* Called immediately after a picture's transform is changed through the
* SetPictureFilter request. Not called for source-only pictures.
*/
ChangePictureFilterProcPtr ChangePictureFilter;
DestroyPictureFilterProcPtr DestroyPictureFilter;
TrapezoidsProcPtr Trapezoids;
TrianglesProcPtr Triangles;
TriStripProcPtr TriStrip;
TriFanProcPtr TriFan;
RasterizeTrapezoidProcPtr RasterizeTrapezoid;
AddTrianglesProcPtr AddTriangles;
AddTrapsProcPtr AddTraps;
} PictureScreenRec, *PictureScreenPtr;
extern int PictureScreenPrivateIndex;
extern int PictureWindowPrivateIndex;
extern RESTYPE PictureType;
extern RESTYPE PictFormatType;
extern RESTYPE GlyphSetType;
#define GetPictureScreen(s) ((PictureScreenPtr) ((s)->devPrivates[PictureScreenPrivateIndex].ptr))
#define GetPictureScreenIfSet(s) ((PictureScreenPrivateIndex != -1) ? GetPictureScreen(s) : NULL)
#define SetPictureScreen(s,p) ((s)->devPrivates[PictureScreenPrivateIndex].ptr = (void *) (p))
#define GetPictureWindow(w) ((PicturePtr) ((w)->devPrivates[PictureWindowPrivateIndex].ptr))
#define SetPictureWindow(w,p) ((w)->devPrivates[PictureWindowPrivateIndex].ptr = (void *) (p))
#define VERIFY_PICTURE(pPicture, pid, client, mode, err) {\
pPicture = SecurityLookupIDByType(client, pid, PictureType, mode);\
if (!pPicture) { \
client->errorValue = pid; \
return err; \
} \
}
#define VERIFY_ALPHA(pPicture, pid, client, mode, err) {\
if (pid == None) \
pPicture = 0; \
else { \
VERIFY_PICTURE(pPicture, pid, client, mode, err); \
} \
} \
void
ResetPicturePrivateIndex (void);
int
AllocatePicturePrivateIndex (void);
Bool
AllocatePicturePrivate (ScreenPtr pScreen, int index2, unsigned int amount);
Bool
PictureDestroyWindow (WindowPtr pWindow);
Bool
PictureCloseScreen (ScreenPtr pScreen);
void
PictureStoreColors (ColormapPtr pColormap, int ndef, xColorItem *pdef);
Bool
PictureInitIndexedFormats (ScreenPtr pScreen);
Bool
PictureSetSubpixelOrder (ScreenPtr pScreen, int subpixel);
int
PictureGetSubpixelOrder (ScreenPtr pScreen);
PictFormatPtr
PictureCreateDefaultFormats (ScreenPtr pScreen, int *nformatp);
PictFormatPtr
PictureMatchVisual (ScreenPtr pScreen, int depth, VisualPtr pVisual);
PictFormatPtr
PictureMatchFormat (ScreenPtr pScreen, int depth, CARD32 format);
Bool
PictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats);
int
PictureGetFilterId (char *filter, int len, Bool makeit);
char *
PictureGetFilterName (int id);
int
PictureAddFilter (ScreenPtr pScreen,
char *filter,
PictFilterValidateParamsProcPtr ValidateParams);
Bool
PictureSetFilterAlias (ScreenPtr pScreen, char *filter, char *alias);
Bool
PictureSetDefaultFilters (ScreenPtr pScreen);
void
PictureResetFilters (ScreenPtr pScreen);
PictFilterPtr
PictureFindFilter (ScreenPtr pScreen, char *name, int len);
int
SetPicturePictFilter (PicturePtr pPicture, PictFilterPtr pFilter,
xFixed *params, int nparams);
int
SetPictureFilter (PicturePtr pPicture, char *name, int len,
xFixed *params, int nparams);
Bool
PictureFinishInit (void);
void
SetPictureToDefaults (PicturePtr pPicture);
PicturePtr
AllocatePicture (ScreenPtr pScreen);
#if 0
Bool
miPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats);
#endif
PicturePtr
CreatePicture (Picture pid,
DrawablePtr pDrawable,
PictFormatPtr pFormat,
Mask mask,
XID *list,
ClientPtr client,
int *error);
int
ChangePicture (PicturePtr pPicture,
Mask vmask,
XID *vlist,
DevUnion *ulist,
ClientPtr client);
int
SetPictureClipRects (PicturePtr pPicture,
int xOrigin,
int yOrigin,
int nRect,
xRectangle *rects);
int
SetPictureClipRegion (PicturePtr pPicture,
int xOrigin,
int yOrigin,
RegionPtr pRegion);
int
SetPictureTransform (PicturePtr pPicture,
PictTransform *transform);
void
CopyPicture (PicturePtr pSrc,
Mask mask,
PicturePtr pDst);
void
ValidatePicture(PicturePtr pPicture);
int
FreePicture (void *pPicture,
XID pid);
int
FreePictFormat (void *pPictFormat,
XID pid);
void
CompositePicture (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height);
void
CompositeGlyphs (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int nlist,
GlyphListPtr lists,
GlyphPtr *glyphs);
void
CompositeRects (CARD8 op,
PicturePtr pDst,
xRenderColor *color,
int nRect,
xRectangle *rects);
void
CompositeTrapezoids (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntrap,
xTrapezoid *traps);
void
CompositeTriangles (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int ntriangles,
xTriangle *triangles);
void
CompositeTriStrip (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int npoints,
xPointFixed *points);
void
CompositeTriFan (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int npoints,
xPointFixed *points);
Bool
PictureTransformPoint (PictTransformPtr transform,
PictVectorPtr vector);
Bool
PictureTransformPoint3d (PictTransformPtr transform,
PictVectorPtr vector);
void RenderExtensionInit (void);
Bool
AnimCurInit (ScreenPtr pScreen);
int
AnimCursorCreate (CursorPtr *cursors, CARD32 *deltas, int ncursor, CursorPtr *ppCursor);
void
AddTraps (PicturePtr pPicture,
INT16 xOff,
INT16 yOff,
int ntraps,
xTrap *traps);
PicturePtr
CreateSolidPicture (Picture pid,
xRenderColor *color,
int *error);
PicturePtr
CreateLinearGradientPicture (Picture pid,
xPointFixed *p1,
xPointFixed *p2,
int nStops,
xFixed *stops,
xRenderColor *colors,
int *error);
PicturePtr
CreateRadialGradientPicture (Picture pid,
xPointFixed *inner,
xPointFixed *outer,
xFixed innerRadius,
xFixed outerRadius,
int nStops,
xFixed *stops,
xRenderColor *colors,
int *error);
PicturePtr
CreateConicalGradientPicture (Picture pid,
xPointFixed *center,
xFixed angle,
int nStops,
xFixed *stops,
xRenderColor *colors,
int *error);
#ifdef PANORAMIX
void PanoramiXRenderInit (void);
void PanoramiXRenderReset (void);
#endif
/*
* matrix.c
*/
extern _X_EXPORT void
PictTransform_from_xRenderTransform(PictTransformPtr pict,
xRenderTransform * render);
extern _X_EXPORT void
xRenderTransform_from_PictTransform(xRenderTransform * render,
PictTransformPtr pict);
extern _X_EXPORT Bool
PictureTransformPoint(PictTransformPtr transform, PictVectorPtr vector);
extern _X_EXPORT Bool
PictureTransformPoint3d(PictTransformPtr transform, PictVectorPtr vector);
#endif /* _PICTURESTR_H_ */

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nx-X11/programs/Xserver/render/render.c Normal file
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nx-X11/programs/Xserver/render/renderedge.c Normal file
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/*
* $Id: renderedge.c,v 1.4 2005/07/03 07:02:08 daniels Exp $
*
* Copyright © 2004 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "renderedge.h"
/*
* Compute the smallest value no less than y which is on a
* grid row
*/
xFixed
RenderSampleCeilY (xFixed y, int n)
{
xFixed f = xFixedFrac(y);
xFixed i = xFixedFloor(y);
f = ((f + Y_FRAC_FIRST(n)) / STEP_Y_SMALL(n)) * STEP_Y_SMALL(n) + Y_FRAC_FIRST(n);
if (f > Y_FRAC_LAST(n))
{
f = Y_FRAC_FIRST(n);
i += xFixed1;
}
return (i | f);
}
#define _div(a,b) ((a) >= 0 ? (a) / (b) : -((-(a) + (b) - 1) / (b)))
/*
* Compute the largest value no greater than y which is on a
* grid row
*/
xFixed
RenderSampleFloorY (xFixed y, int n)
{
xFixed f = xFixedFrac(y);
xFixed i = xFixedFloor (y);
f = _div(f - Y_FRAC_FIRST(n), STEP_Y_SMALL(n)) * STEP_Y_SMALL(n) + Y_FRAC_FIRST(n);
if (f < Y_FRAC_FIRST(n))
{
f = Y_FRAC_LAST(n);
i -= xFixed1;
}
return (i | f);
}
/*
* Step an edge by any amount (including negative values)
*/
void
RenderEdgeStep (RenderEdge *e, int n)
{
xFixed_48_16 ne;
e->x += n * e->stepx;
ne = e->e + n * (xFixed_48_16) e->dx;
if (n >= 0)
{
if (ne > 0)
{
int nx = (ne + e->dy - 1) / e->dy;
e->e = ne - nx * (xFixed_48_16) e->dy;
e->x += nx * e->signdx;
}
}
else
{
if (ne <= -e->dy)
{
int nx = (-ne) / e->dy;
e->e = ne + nx * (xFixed_48_16) e->dy;
e->x -= nx * e->signdx;
}
}
}
/*
* A private routine to initialize the multi-step
* elements of an edge structure
*/
static void
_RenderEdgeMultiInit (RenderEdge *e, int n, xFixed *stepx_p, xFixed *dx_p)
{
xFixed stepx;
xFixed_48_16 ne;
ne = n * (xFixed_48_16) e->dx;
stepx = n * e->stepx;
if (ne > 0)
{
int nx = ne / e->dy;
ne -= nx * e->dy;
stepx += nx * e->signdx;
}
*dx_p = ne;
*stepx_p = stepx;
}
/*
* Initialize one edge structure given the line endpoints and a
* starting y value
*/
void
RenderEdgeInit (RenderEdge *e,
int n,
xFixed y_start,
xFixed x_top,
xFixed y_top,
xFixed x_bot,
xFixed y_bot)
{
xFixed dx, dy;
e->x = x_top;
e->e = 0;
dx = x_bot - x_top;
dy = y_bot - y_top;
e->dy = dy;
e->dx = 0;
if (dy)
{
if (dx >= 0)
{
e->signdx = 1;
e->stepx = dx / dy;
e->dx = dx % dy;
e->e = -dy;
}
else
{
e->signdx = -1;
e->stepx = -(-dx / dy);
e->dx = -dx % dy;
e->e = 0;
}
_RenderEdgeMultiInit (e, STEP_Y_SMALL(n), &e->stepx_small, &e->dx_small);
_RenderEdgeMultiInit (e, STEP_Y_BIG(n), &e->stepx_big, &e->dx_big);
}
RenderEdgeStep (e, y_start - y_top);
}
/*
* Initialize one edge structure given a line, starting y value
* and a pixel offset for the line
*/
void
RenderLineFixedEdgeInit (RenderEdge *e,
int n,
xFixed y,
xLineFixed *line,
int x_off,
int y_off)
{
xFixed x_off_fixed = IntToxFixed(x_off);
xFixed y_off_fixed = IntToxFixed(y_off);
xPointFixed *top, *bot;
if (line->p1.y <= line->p2.y)
{
top = &line->p1;
bot = &line->p2;
}
else
{
top = &line->p2;
bot = &line->p1;
}
RenderEdgeInit (e, n, y,
top->x + x_off_fixed,
top->y + y_off_fixed,
bot->x + x_off_fixed,
bot->y + y_off_fixed);
}

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/*
* $Id: renderedge.h,v 1.4 2005/08/24 11:18:33 daniels Exp $
*
* Copyright © 2004 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE 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.
*/
#ifndef _RENDEREDGE_H_
#define _RENDEREDGE_H_
#include "picturestr.h"
#define MAX_ALPHA(n) ((1 << (n)) - 1)
#define N_Y_FRAC(n) ((n) == 1 ? 1 : (1 << ((n)/2)) - 1)
#define N_X_FRAC(n) ((1 << ((n)/2)) + 1)
#define STEP_Y_SMALL(n) (xFixed1 / N_Y_FRAC(n))
#define STEP_Y_BIG(n) (xFixed1 - (N_Y_FRAC(n) - 1) * STEP_Y_SMALL(n))
#define Y_FRAC_FIRST(n) (STEP_Y_SMALL(n) / 2)
#define Y_FRAC_LAST(n) (Y_FRAC_FIRST(n) + (N_Y_FRAC(n) - 1) * STEP_Y_SMALL(n))
#define STEP_X_SMALL(n) (xFixed1 / N_X_FRAC(n))
#define STEP_X_BIG(n) (xFixed1 - (N_X_FRAC(n) - 1) * STEP_X_SMALL(n))
#define X_FRAC_FIRST(n) (STEP_X_SMALL(n) / 2)
#define X_FRAC_LAST(n) (X_FRAC_FIRST(n) + (N_X_FRAC(n) - 1) * STEP_X_SMALL(n))
#define RenderSamplesX(x,n) ((n) == 1 ? 0 : (xFixedFrac (x) + X_FRAC_FIRST(n)) / STEP_X_SMALL(n))
/*
* An edge structure. This represents a single polygon edge
* and can be quickly stepped across small or large gaps in the
* sample grid
*/
typedef struct {
xFixed x;
xFixed e;
xFixed stepx;
xFixed signdx;
xFixed dy;
xFixed dx;
xFixed stepx_small;
xFixed stepx_big;
xFixed dx_small;
xFixed dx_big;
} RenderEdge;
/*
* Step across a small sample grid gap
*/
#define RenderEdgeStepSmall(edge) { \
edge->x += edge->stepx_small; \
edge->e += edge->dx_small; \
if (edge->e > 0) \
{ \
edge->e -= edge->dy; \
edge->x += edge->signdx; \
} \
}
/*
* Step across a large sample grid gap
*/
#define RenderEdgeStepBig(edge) { \
edge->x += edge->stepx_big; \
edge->e += edge->dx_big; \
if (edge->e > 0) \
{ \
edge->e -= edge->dy; \
edge->x += edge->signdx; \
} \
}
xFixed
RenderSampleCeilY (xFixed y, int bpp);
xFixed
RenderSampleFloorY (xFixed y, int bpp);
void
RenderEdgeStep (RenderEdge *e, int n);
void
RenderEdgeInit (RenderEdge *e,
int bpp,
xFixed y_start,
xFixed x_top,
xFixed y_top,
xFixed x_bot,
xFixed y_bot);
void
RenderLineFixedEdgeInit (RenderEdge *e,
int bpp,
xFixed y,
xLineFixed *line,
int x_off,
int y_off);
#endif /* _RENDEREDGE_H_ */