#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 "mi.h"
#include "pixmapstr.h"
#include "gcstruct.h"
#include "windowstr.h"
#include "xaalocal.h"
RegionPtr
XAABitBlt(
DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
GC *pGC,
int srcx, int srcy,
int width, int height,
int dstx, int dsty,
void (*doBitBlt)(DrawablePtr, DrawablePtr, GCPtr, RegionPtr, DDXPointPtr),
unsigned long bitPlane )
{
RegionPtr prgnSrcClip = NULL;
RegionPtr prgnExposed;
Bool freeSrcClip = FALSE;
RegionRec rgnDst;
DDXPointPtr pptSrc, ppt;
DDXPointRec origDest;
BoxPtr pbox;
BoxRec fastBox;
int i, dx, dy, numRects;
xRectangle origSource;
int fastClip = 0;
int fastExpose = 0;
origSource.x = srcx;
origSource.y = srcy;
origSource.width = width;
origSource.height = height;
origDest.x = dstx;
origDest.y = dsty;
if (pSrcDrawable->pScreen->SourceValidate) {
(*pSrcDrawable->pScreen->SourceValidate) (
pSrcDrawable, srcx, srcy, width, height,
pGC->subWindowMode);
}
srcx += pSrcDrawable->x;
srcy += pSrcDrawable->y;
if (pSrcDrawable->type == DRAWABLE_PIXMAP) {
if ((pSrcDrawable == pDstDrawable) && (pGC->clientClipType == CT_NONE))
prgnSrcClip = pGC->pCompositeClip;
else
fastClip = 1;
} else {
if (pGC->subWindowMode == IncludeInferiors) {
if (!((WindowPtr) pSrcDrawable)->parent) {
fastClip = 1;
} else if ((pSrcDrawable == pDstDrawable) &&
(pGC->clientClipType == CT_NONE)) {
prgnSrcClip = pGC->pCompositeClip;
} else {
prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable);
freeSrcClip = TRUE;
}
} else {
prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;
}
}
fastBox.x1 = srcx;
fastBox.y1 = srcy;
fastBox.x2 = srcx + width;
fastBox.y2 = srcy + height;
if (fastClip) {
fastExpose = 1;
if (fastBox.x1 < pSrcDrawable->x) {
fastBox.x1 = pSrcDrawable->x;
fastExpose = 0;
}
if (fastBox.y1 < pSrcDrawable->y) {
fastBox.y1 = pSrcDrawable->y;
fastExpose = 0;
}
if (fastBox.x2 > pSrcDrawable->x + (int) pSrcDrawable->width) {
fastBox.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
fastExpose = 0;
}
if (fastBox.y2 > pSrcDrawable->y + (int) pSrcDrawable->height) {
fastBox.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
fastExpose = 0;
}
} else {
RegionInit(&rgnDst, &fastBox, 1);
RegionIntersect(&rgnDst, &rgnDst, prgnSrcClip);
}
dstx += pDstDrawable->x;
dsty += pDstDrawable->y;
if (pDstDrawable->type == DRAWABLE_WINDOW) {
if (!((WindowPtr)pDstDrawable)->realized) {
if (!fastClip)
RegionUninit(&rgnDst);
if (freeSrcClip)
RegionDestroy(prgnSrcClip);
return NULL;
}
}
dx = srcx - dstx;
dy = srcy - dsty;
if (fastClip) {
RegionPtr cclip;
fastBox.x1 -= dx;
fastBox.x2 -= dx;
fastBox.y1 -= dy;
fastBox.y2 -= dy;
cclip = pGC->pCompositeClip;
if (RegionNumRects(cclip) == 1) {
BoxPtr pBox = RegionRects(cclip);
if (fastBox.x1 < pBox->x1) fastBox.x1 = pBox->x1;
if (fastBox.x2 > pBox->x2) fastBox.x2 = pBox->x2;
if (fastBox.y1 < pBox->y1) fastBox.y1 = pBox->y1;
if (fastBox.y2 > pBox->y2) fastBox.y2 = pBox->y2;
if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2) {
RegionNull(&rgnDst);
} else {
RegionInit(&rgnDst, &fastBox, 1);
}
} else {
fastClip = 0;
RegionInit(&rgnDst, &fastBox,1);
}
} else {
RegionTranslate(&rgnDst, -dx, -dy);
}
if (!fastClip) {
RegionIntersect(&rgnDst, &rgnDst,
pGC->pCompositeClip);
}
numRects = RegionNumRects(&rgnDst);
if (numRects && width && height) {
if(!(pptSrc = (DDXPointPtr)malloc(numRects *
sizeof(DDXPointRec)))) {
RegionUninit(&rgnDst);
if (freeSrcClip)
RegionDestroy(prgnSrcClip);
return NULL;
}
pbox = RegionRects(&rgnDst);
ppt = pptSrc;
for (i = numRects; --i >= 0; pbox++, ppt++) {
ppt->x = pbox->x1 + dx;
ppt->y = pbox->y1 + dy;
}
(*doBitBlt) (pSrcDrawable, pDstDrawable, pGC, &rgnDst, pptSrc);
free(pptSrc);
}
prgnExposed = NULL;
if (pGC->fExpose) {
if (!fastExpose)
prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
origSource.x, origSource.y,
(int)origSource.width,
(int)origSource.height,
origDest.x, origDest.y, bitPlane);
}
RegionUninit(&rgnDst);
if (freeSrcClip)
RegionDestroy(prgnSrcClip);
return prgnExposed;
}