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xenocara/xserver/hw/xfree86/xaa/xaaSpans.c
matthieu 428261197a Upgrade to xorg-server 1.9.2. 
Tested by ajacoutot@, krw@, shadchin@ and jasper@ on various configurations
including multihead with both zaphod and xrandr.
2010-12-05 15:36:02 +00:00

883 lines
21 KiB
C
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#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "misc.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#include <X11/X.h>
#include "scrnintstr.h"
#include "pixmapstr.h"
#include "xf86str.h"
#include "mi.h"
#include "mispans.h"
#include "xaa.h"
#include "xaalocal.h"
static void XAARenderSolidSpans(
GCPtr, int, DDXPointPtr, int*, int, int, int);
static void XAARenderColor8x8Spans(
GCPtr, int, DDXPointPtr, int*, int, int, int);
static void XAARenderMono8x8Spans(
GCPtr, int, DDXPointPtr, int*, int, int, int);
static void XAARenderCacheBltSpans(
GCPtr, int, DDXPointPtr, int*, int, int, int);
static void XAARenderColorExpandSpans(
GCPtr, int, DDXPointPtr, int*, int, int, int);
static void XAARenderCacheExpandSpans(
GCPtr, int, DDXPointPtr, int*, int, int, int);
static void XAARenderPixmapCopySpans(
GCPtr, int, DDXPointPtr, int*, int, int, int);
void
XAAFillSpans(
DrawablePtr pDraw,
GC *pGC,
int nInit, /* number of spans to fill */
DDXPointPtr pptInit, /* pointer to list of start points */
int *pwidthInit, /* pointer to list of n widths */
int fSorted
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
int type = 0;
ClipAndRenderSpansFunc function;
Bool fastClip = FALSE;
if((nInit <= 0) || !pGC->planemask)
return;
if(!RegionNumRects(pGC->pCompositeClip))
return;
switch(pGC->fillStyle) {
case FillSolid:
type = DO_SOLID;
break;
case FillStippled:
type = (*infoRec->StippledFillChooser)(pGC);
break;
case FillOpaqueStippled:
if((pGC->fgPixel == pGC->bgPixel) && infoRec->FillSpansSolid &&
CHECK_PLANEMASK(pGC,infoRec->FillSpansSolidFlags) &&
CHECK_ROP(pGC,infoRec->FillSpansSolidFlags) &&
CHECK_ROPSRC(pGC,infoRec->FillSpansSolidFlags) &&
CHECK_FG(pGC,infoRec->FillSpansSolidFlags))
type = DO_SOLID;
else
type = (*infoRec->OpaqueStippledFillChooser)(pGC);
break;
case FillTiled:
type = (*infoRec->TiledFillChooser)(pGC);
break;
}
switch(type) {
case DO_SOLID:
function = XAARenderSolidSpans;
if(infoRec->ClippingFlags & HARDWARE_CLIP_SOLID_FILL)
fastClip = TRUE;
break;
case DO_COLOR_8x8:
function = XAARenderColor8x8Spans;
if(infoRec->ClippingFlags & HARDWARE_CLIP_COLOR_8x8_FILL)
fastClip = TRUE;
break;
case DO_MONO_8x8:
function = XAARenderMono8x8Spans;
if(infoRec->ClippingFlags & HARDWARE_CLIP_MONO_8x8_FILL)
fastClip = TRUE;
break;
case DO_CACHE_BLT:
function = XAARenderCacheBltSpans;
if(infoRec->ClippingFlags & HARDWARE_CLIP_SCREEN_TO_SCREEN_COPY)
fastClip = TRUE;
break;
case DO_COLOR_EXPAND:
function = XAARenderColorExpandSpans;
break;
case DO_CACHE_EXPAND:
function = XAARenderCacheExpandSpans;
if(infoRec->ClippingFlags &
HARDWARE_CLIP_SCREEN_TO_SCREEN_COLOR_EXPAND)
fastClip = TRUE;
break;
case DO_PIXMAP_COPY:
function = XAARenderPixmapCopySpans;
if(infoRec->ClippingFlags & HARDWARE_CLIP_SCREEN_TO_SCREEN_COPY)
fastClip = TRUE;
break;
case DO_IMAGE_WRITE:
default:
(*XAAFallbackOps.FillSpans)(pDraw, pGC, nInit, pptInit,
pwidthInit, fSorted);
return;
}
if((nInit < 10) || (RegionNumRects(pGC->pCompositeClip) != 1))
fastClip = FALSE;
if(fastClip) {
infoRec->ClipBox = &pGC->pCompositeClip->extents;
(*function)(pGC, nInit, pptInit, pwidthInit, fSorted,
pDraw->x, pDraw->y);
infoRec->ClipBox = NULL;
} else
XAAClipAndRenderSpans(pGC, pptInit, pwidthInit, nInit, fSorted,
function, pDraw->x, pDraw->y);
}
/*********************\
| Solid Spans |
\*********************/
static void
XAARenderSolidSpans(
GCPtr pGC,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
int xorg, int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
(*infoRec->FillSolidSpans) (infoRec->pScrn, pGC->fgPixel,
pGC->alu, pGC->planemask, n, ppt, pwidth, fSorted);
}
/************************\
| Mono 8x8 Spans |
\************************/
static void
XAARenderMono8x8Spans(
GCPtr pGC,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
int xorg, int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
XAAPixmapPtr pPriv;
int fg, bg;
switch(pGC->fillStyle) {
case FillStippled:
pPriv = XAA_GET_PIXMAP_PRIVATE(pGC->stipple);
fg = pGC->fgPixel; bg = -1;
break;
case FillOpaqueStippled:
pPriv = XAA_GET_PIXMAP_PRIVATE(pGC->stipple);
fg = pGC->fgPixel; bg = pGC->bgPixel;
break;
case FillTiled:
pPriv = XAA_GET_PIXMAP_PRIVATE(pGC->tile.pixmap);
fg = pPriv->fg; bg = pPriv->bg;
break;
default: /* Muffle compiler */
pPriv = NULL; /* Kaboom */
fg = -1; bg = -1;
break;
}
(*infoRec->FillMono8x8PatternSpans) (infoRec->pScrn,
fg, bg, pGC->alu, pGC->planemask,
n, ppt, pwidth, fSorted, pPriv->pattern0, pPriv->pattern1,
(xorg + pGC->patOrg.x), (yorg + pGC->patOrg.y));
}
/*************************\
| Color 8x8 Spans |
\*************************/
static void
XAARenderColor8x8Spans(
GCPtr pGC,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
int xorg, int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
XAACacheInfoPtr pCache;
PixmapPtr pPix;
int fg, bg;
switch(pGC->fillStyle) {
case FillStippled:
pPix = pGC->stipple;
fg = pGC->fgPixel; bg = -1;
break;
case FillOpaqueStippled:
pPix = pGC->stipple;
fg = pGC->fgPixel; bg = pGC->bgPixel;
break;
case FillTiled:
pPix = pGC->tile.pixmap;
fg = -1; bg = -1;
break;
default: /* Muffle compiler */
pPix = NULL;
fg = -1; bg = -1;
break;
}
pCache = (*infoRec->CacheColor8x8Pattern)(infoRec->pScrn, pPix, fg, bg);
(*infoRec->FillColor8x8PatternSpans) (infoRec->pScrn,
pGC->alu, pGC->planemask, n, ppt, pwidth, fSorted, pCache,
(yorg + pGC->patOrg.x), (xorg + pGC->patOrg.y));
}
/****************************\
| Color Expand Spans |
\****************************/
static void
XAARenderColorExpandSpans(
GCPtr pGC,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
int xorg, int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
int fg, bg;
switch(pGC->fillStyle) {
case FillStippled:
fg = pGC->fgPixel; bg = -1;
break;
case FillOpaqueStippled:
fg = pGC->fgPixel; bg = pGC->bgPixel;
break;
default: /* Muffle compiler */
fg = -1; bg = -1;
break;
}
(*infoRec->FillColorExpandSpans) (infoRec->pScrn, fg, bg,
pGC->alu, pGC->planemask, n, ppt, pwidth, fSorted,
(xorg + pGC->patOrg.x), (yorg + pGC->patOrg.y),
pGC->stipple);
}
/*************************\
| Cache Blt Spans |
\*************************/
static void
XAARenderCacheBltSpans(
GCPtr pGC,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
int xorg, int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
XAACacheInfoPtr pCache;
switch(pGC->fillStyle) {
case FillStippled:
pCache = (*infoRec->CacheStipple)(infoRec->pScrn, pGC->stipple,
pGC->fgPixel, -1);
break;
case FillOpaqueStippled:
pCache = (*infoRec->CacheStipple)(infoRec->pScrn, pGC->stipple,
pGC->fgPixel, pGC->bgPixel);
break;
case FillTiled:
pCache = (*infoRec->CacheTile)(infoRec->pScrn, pGC->tile.pixmap);
break;
default: /* Muffle compiler */
pCache = NULL;
break;
}
(*infoRec->FillCacheBltSpans) (infoRec->pScrn,
pGC->alu, pGC->planemask, n, ppt, pwidth, fSorted, pCache,
(xorg + pGC->patOrg.x), (yorg + pGC->patOrg.y));
}
/****************************\
| Cache Expand Spans |
\****************************/
static void
XAARenderCacheExpandSpans(
GCPtr pGC,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
int xorg, int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
int fg, bg;
switch(pGC->fillStyle) {
case FillStippled:
fg = pGC->fgPixel; bg = -1;
break;
case FillOpaqueStippled:
fg = pGC->fgPixel; bg = pGC->bgPixel;
break;
default: /* Muffle compiler */
fg = -1; bg = -1;
break;
}
(*infoRec->FillCacheExpandSpans) (infoRec->pScrn, fg, bg,
pGC->alu, pGC->planemask, n, ppt, pwidth, fSorted,
(xorg + pGC->patOrg.x), (yorg + pGC->patOrg.y),
pGC->stipple);
}
/***************************\
| Pixmap Copy Spans |
\***************************/
static void
XAARenderPixmapCopySpans(
GCPtr pGC,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
int xorg, int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
XAACacheInfoPtr pCache = &(infoRec->ScratchCacheInfoRec);
XAAPixmapPtr pPriv = XAA_GET_PIXMAP_PRIVATE(pGC->tile.pixmap);
pCache->x = pPriv->offscreenArea->box.x1;
pCache->y = pPriv->offscreenArea->box.y1;
pCache->w = pCache->orig_w =
pPriv->offscreenArea->box.x2 - pCache->x;
pCache->h = pCache->orig_h =
pPriv->offscreenArea->box.y2 - pCache->y;
pCache->trans_color = -1;
(*infoRec->FillCacheBltSpans) (infoRec->pScrn,
pGC->alu, pGC->planemask, n, ppt, pwidth, fSorted, pCache,
(xorg + pGC->patOrg.x), (yorg + pGC->patOrg.y));
}
/****************\
| Solid |
\****************/
void
XAAFillSolidSpans(
ScrnInfoPtr pScrn,
int fg, int rop,
unsigned int planemask,
int n,
DDXPointPtr ppt,
int *pwidth, int fSorted
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
(*infoRec->SetupForSolidFill)(pScrn, fg, rop, planemask);
if(infoRec->ClipBox)
(*infoRec->SetClippingRectangle)(infoRec->pScrn,
infoRec->ClipBox->x1, infoRec->ClipBox->y1,
infoRec->ClipBox->x2 - 1, infoRec->ClipBox->y2 - 1);
while(n--) {
if (*pwidth > 0)
(*infoRec->SubsequentSolidFillRect)(pScrn, ppt->x, ppt->y,
*pwidth, 1);
ppt++; pwidth++;
}
if(infoRec->ClipBox)
(*infoRec->DisableClipping)(infoRec->pScrn);
SET_SYNC_FLAG(infoRec);
}
/***************\
| Mono 8x8 |
\***************/
void
XAAFillMono8x8PatternSpansScreenOrigin(
ScrnInfoPtr pScrn,
int fg, int bg, int rop,
unsigned int planemask,
int n,
DDXPointPtr ppt,
int *pwidth, int fSorted,
int pattern0, int pattern1,
int xorigin, int yorigin
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
int patx = pattern0, paty = pattern1;
int xorg = (-xorigin) & 0x07;
int yorg = (-yorigin) & 0x07;
if(infoRec->Mono8x8PatternFillFlags & HARDWARE_PATTERN_PROGRAMMED_BITS) {
if(!(infoRec->Mono8x8PatternFillFlags &
HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
XAARotateMonoPattern(&patx, &paty, xorg, yorg,
(infoRec->Mono8x8PatternFillFlags &
BIT_ORDER_IN_BYTE_MSBFIRST));
xorg = patx; yorg = paty;
}
} else {
XAACacheInfoPtr pCache =
(*infoRec->CacheMono8x8Pattern)(pScrn, pattern0, pattern1);
patx = pCache->x; paty = pCache->y;
if(!(infoRec->Mono8x8PatternFillFlags &
HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
int slot = (yorg << 3) + xorg;
patx += pCache->offsets[slot].x;
paty += pCache->offsets[slot].y;
xorg = patx; yorg = paty;
}
}
(*infoRec->SetupForMono8x8PatternFill)(pScrn, patx, paty,
fg, bg, rop, planemask);
if(infoRec->ClipBox)
(*infoRec->SetClippingRectangle)(infoRec->pScrn,
infoRec->ClipBox->x1, infoRec->ClipBox->y1,
infoRec->ClipBox->x2 - 1, infoRec->ClipBox->y2 - 1);
while(n--) {
(*infoRec->SubsequentMono8x8PatternFillRect)(pScrn,
xorg, yorg, ppt->x, ppt->y, *pwidth, 1);
ppt++; pwidth++;
}
if(infoRec->ClipBox)
(*infoRec->DisableClipping)(infoRec->pScrn);
SET_SYNC_FLAG(infoRec);
}
void
XAAFillMono8x8PatternSpans(
ScrnInfoPtr pScrn,
int fg, int bg, int rop,
unsigned int planemask,
int n,
DDXPointPtr ppt,
int *pwidth, int fSorted,
int pattern0, int pattern1,
int xorigin, int yorigin
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
int patx = pattern0, paty = pattern1;
int xorg, yorg, slot;
XAACacheInfoPtr pCache = NULL;
if(!(infoRec->Mono8x8PatternFillFlags & HARDWARE_PATTERN_PROGRAMMED_BITS)){
pCache = (*infoRec->CacheMono8x8Pattern)(pScrn, pattern0, pattern1);
patx = pCache->x; paty = pCache->y;
}
(*infoRec->SetupForMono8x8PatternFill)(pScrn, patx, paty,
fg, bg, rop, planemask);
if(infoRec->ClipBox)
(*infoRec->SetClippingRectangle)(infoRec->pScrn,
infoRec->ClipBox->x1, infoRec->ClipBox->y1,
infoRec->ClipBox->x2 - 1, infoRec->ClipBox->y2 - 1);
while(n--) {
xorg = (ppt->x - xorigin) & 0x07;
yorg = (ppt->y - yorigin) & 0x07;
if(!(infoRec->Mono8x8PatternFillFlags &
HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
if(infoRec->Mono8x8PatternFillFlags &
HARDWARE_PATTERN_PROGRAMMED_BITS) {
patx = pattern0; paty = pattern1;
XAARotateMonoPattern(&patx, &paty, xorg, yorg,
(infoRec->Mono8x8PatternFillFlags &
BIT_ORDER_IN_BYTE_MSBFIRST));
xorg = patx; yorg = paty;
} else {
slot = (yorg << 3) + xorg;
xorg = patx + pCache->offsets[slot].x;
yorg = paty + pCache->offsets[slot].y;
}
}
(*infoRec->SubsequentMono8x8PatternFillRect)(pScrn,
xorg, yorg, ppt->x, ppt->y, *pwidth, 1);
ppt++; pwidth++;
}
if(infoRec->ClipBox)
(*infoRec->DisableClipping)(infoRec->pScrn);
SET_SYNC_FLAG(infoRec);
}
/****************\
| Color 8x8 |
\****************/
void
XAAFillColor8x8PatternSpansScreenOrigin(
ScrnInfoPtr pScrn,
int rop,
unsigned int planemask,
int n,
DDXPointPtr ppt,
int *pwidth, int fSorted,
XAACacheInfoPtr pCache,
int xorigin, int yorigin
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
int patx = pCache->x, paty = pCache->y;
int xorg = (-xorigin) & 0x07;
int yorg = (-yorigin) & 0x07;
if(!(infoRec->Color8x8PatternFillFlags &
HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
int slot = (yorg << 3) + xorg;
paty += pCache->offsets[slot].y;
patx += pCache->offsets[slot].x;
xorg = patx; yorg = paty;
}
(*infoRec->SetupForColor8x8PatternFill)(pScrn, patx, paty,
rop, planemask, pCache->trans_color);
if(infoRec->ClipBox)
(*infoRec->SetClippingRectangle)(infoRec->pScrn,
infoRec->ClipBox->x1, infoRec->ClipBox->y1,
infoRec->ClipBox->x2 - 1, infoRec->ClipBox->y2 - 1);
while(n--) {
(*infoRec->SubsequentColor8x8PatternFillRect)(pScrn,
xorg, yorg, ppt->x, ppt->y, *pwidth, 1);
ppt++; pwidth++;
}
if(infoRec->ClipBox)
(*infoRec->DisableClipping)(infoRec->pScrn);
SET_SYNC_FLAG(infoRec);
}
void
XAAFillColor8x8PatternSpans(
ScrnInfoPtr pScrn,
int rop,
unsigned int planemask,
int n,
DDXPointPtr ppt,
int *pwidth, int fSorted,
XAACacheInfoPtr pCache,
int xorigin, int yorigin
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
int xorg, yorg, slot;
(*infoRec->SetupForColor8x8PatternFill)(pScrn, pCache->x, pCache->y,
rop, planemask, pCache->trans_color);
if(infoRec->ClipBox)
(*infoRec->SetClippingRectangle)(infoRec->pScrn,
infoRec->ClipBox->x1, infoRec->ClipBox->y1,
infoRec->ClipBox->x2 - 1, infoRec->ClipBox->y2 - 1);
while(n--) {
xorg = (ppt->x - xorigin) & 0x07;
yorg = (ppt->y - yorigin) & 0x07;
if(!(infoRec->Color8x8PatternFillFlags &
HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
slot = (yorg << 3) + xorg;
yorg = pCache->y + pCache->offsets[slot].y;
xorg = pCache->x + pCache->offsets[slot].x;
}
(*infoRec->SubsequentColor8x8PatternFillRect)(pScrn,
xorg, yorg, ppt->x, ppt->y, *pwidth, 1);
ppt++; pwidth++;
}
if(infoRec->ClipBox)
(*infoRec->DisableClipping)(infoRec->pScrn);
SET_SYNC_FLAG(infoRec);
}
/*****************\
| Cache Blit |
\*****************/
void
XAAFillCacheBltSpans(
ScrnInfoPtr pScrn,
int rop,
unsigned int planemask,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
XAACacheInfoPtr pCache,
int xorg, int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
int x, w, phaseX, phaseY, blit_w;
(*infoRec->SetupForScreenToScreenCopy)(pScrn, 1, 1, rop, planemask,
pCache->trans_color);
if(infoRec->ClipBox)
(*infoRec->SetClippingRectangle)(infoRec->pScrn,
infoRec->ClipBox->x1, infoRec->ClipBox->y1,
infoRec->ClipBox->x2 - 1, infoRec->ClipBox->y2 - 1);
while(n--) {
x = ppt->x;
w = *pwidth;
phaseX = (x - xorg) % pCache->orig_w;
if(phaseX < 0) phaseX += pCache->orig_w;
phaseY = (ppt->y - yorg) % pCache->orig_h;
if(phaseY < 0) phaseY += pCache->orig_h;
while(1) {
blit_w = pCache->w - phaseX;
if(blit_w > w) blit_w = w;
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,
pCache->x + phaseX, pCache->y + phaseY,
x, ppt->y, blit_w, 1);
w -= blit_w;
if(!w) break;
x += blit_w;
phaseX = (phaseX + blit_w) % pCache->orig_w;
}
ppt++; pwidth++;
}
if(infoRec->ClipBox)
(*infoRec->DisableClipping)(infoRec->pScrn);
SET_SYNC_FLAG(infoRec);
}
/****************\
| Cache Expand |
\****************/
void
XAAFillCacheExpandSpans(
ScrnInfoPtr pScrn,
int fg, int bg, int rop,
unsigned int planemask,
int n,
DDXPointPtr ppt,
int *pwidth,
int fSorted,
int xorg, int yorg,
PixmapPtr pPix
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
int x, w, phaseX, phaseY, blit_w, cacheWidth;
XAACacheInfoPtr pCache;
pCache = (*infoRec->CacheMonoStipple)(pScrn, pPix);
cacheWidth = (pCache->w * pScrn->bitsPerPixel) /
infoRec->CacheColorExpandDensity;
(*infoRec->SetupForScreenToScreenColorExpandFill)(pScrn, fg, bg, rop,
planemask);
if(infoRec->ClipBox)
(*infoRec->SetClippingRectangle)(infoRec->pScrn,
infoRec->ClipBox->x1, infoRec->ClipBox->y1,
infoRec->ClipBox->x2 - 1, infoRec->ClipBox->y2 - 1);
while(n--) {
x = ppt->x;
w = *pwidth;
phaseX = (x - xorg) % pCache->orig_w;
if(phaseX < 0) phaseX += pCache->orig_w;
phaseY = (ppt->y - yorg) % pCache->orig_h;
if(phaseY < 0) phaseY += pCache->orig_h;
while(1) {
blit_w = cacheWidth - phaseX;
if(blit_w > w) blit_w = w;
(*infoRec->SubsequentScreenToScreenColorExpandFill)(
pScrn, x, ppt->y, blit_w, 1,
pCache->x, pCache->y + phaseY, phaseX);
w -= blit_w;
if(!w) break;
x += blit_w;
phaseX = (phaseX + blit_w) % pCache->orig_w;
}
ppt++; pwidth++;
}
if(infoRec->ClipBox)
(*infoRec->DisableClipping)(infoRec->pScrn);
SET_SYNC_FLAG(infoRec);
}
void
XAAClipAndRenderSpans(
GCPtr pGC,
DDXPointPtr ppt,
int *pwidth,
int nspans,
int fSorted,
ClipAndRenderSpansFunc func,
int xorg,
int yorg
){
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
DDXPointPtr pptNew, pptBase;
int *pwidthBase, *pwidthNew;
int Right, numRects, MaxBoxes;
MaxBoxes = infoRec->PreAllocSize/(sizeof(DDXPointRec) + sizeof(int));
pptBase = (DDXPointRec*)infoRec->PreAllocMem;
pwidthBase = (int*)(&pptBase[MaxBoxes]);
pptNew = pptBase;
pwidthNew = pwidthBase;
numRects = RegionNumRects(pGC->pCompositeClip);
if(numRects == 1) {
BoxPtr pextent = RegionRects(pGC->pCompositeClip);
while(nspans--) {
if ((pextent->y1 <= ppt->y) && (ppt->y < pextent->y2)) {
pptNew->x = max(pextent->x1, ppt->x);
Right = ppt->x + *pwidth;
*pwidthNew = min(pextent->x2, Right) - pptNew->x;
if (*pwidthNew > 0) {
pptNew->y = ppt->y;
pptNew++;
pwidthNew++;
if(pptNew >= (pptBase + MaxBoxes)) {
(*func)(pGC, MaxBoxes, pptBase, pwidthBase, fSorted,
xorg, yorg);
pptNew = pptBase;
pwidthNew = pwidthBase;
}
}
}
ppt++;
pwidth++;
}
} else if (numRects) {
BoxPtr pbox;
int nbox;
while(nspans--) {
nbox = numRects;
pbox = RegionRects(pGC->pCompositeClip);
/* find the first band */
while(nbox && (pbox->y2 <= ppt->y)) {
pbox++;
nbox--;
}
if(nbox && (pbox->y1 <= ppt->y)) {
int orig_y = pbox->y1;
Right = ppt->x + *pwidth;
while(nbox && (orig_y == pbox->y1)) {
if(pbox->x2 <= ppt->x) {
nbox--;
pbox++;
continue;
}
if(pbox->x1 >= Right) {
nbox = 0;
break;
}
pptNew->x = max(pbox->x1, ppt->x);
*pwidthNew = min(pbox->x2, Right) - pptNew->x;
if(*pwidthNew > 0) {
pptNew->y = ppt->y;
pptNew++;
pwidthNew++;
if(pptNew >= (pptBase + MaxBoxes)) {
(*func)(pGC, MaxBoxes, pptBase, pwidthBase,
fSorted, xorg, yorg);
pptNew = pptBase;
pwidthNew = pwidthBase;
}
}
pbox++;
nbox--;
}
}
ppt++;
pwidth++;
}
}
if(pptNew != pptBase)
(*func)(pGC, pptNew - pptBase, pptBase, pwidthBase, fSorted,
xorg, yorg);
}
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