/** Copy area from \a pSrc drawable to \a pDst drawable on the back-end
* server associated with \a pSrc drawable's screen. If the offscreen
* optimization is enabled, only copy when both \a pSrc and \a pDst are
* at least partially visible. */
RegionPtr dmxCopyArea(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
int srcx, int srcy, int w, int h, int dstx, int dsty)
{
DMXScreenInfo *dmxScreen = &dmxScreens[pSrc->pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
Drawable srcDraw, dstDraw;
if (DMX_GCOPS_OFFSCREEN(pSrc) || DMX_GCOPS_OFFSCREEN(pDst))
return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, w, h,
dstx, dsty, 0L);
DMX_GCOPS_SET_DRAWABLE(pSrc, srcDraw);
DMX_GCOPS_SET_DRAWABLE(pDst, dstDraw);
XCopyArea(dmxScreen->beDisplay, srcDraw, dstDraw, pGCPriv->gc,
srcx, srcy, w, h, dstx, dsty);
dmxSync(dmxScreen, FALSE);
return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, w, h,
dstx, dsty, 0L);
}
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; /* may be a new region, or just a copy */
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; /* for fast clipping with pixmap source */
int fastExpose = 0; /* for fast exposures with pixmap source */
origSource.x = srcx;
origSource.y = srcy;
origSource.width = width;
origSource.height = height;
origDest.x = dstx;
origDest.y = dsty;
if((pSrcDrawable != pDstDrawable) &&
pSrcDrawable->pScreen->SourceValidate) {
(*pSrcDrawable->pScreen->SourceValidate) (
pSrcDrawable, srcx, srcy, width, height);
}
srcx += pSrcDrawable->x;
srcy += pSrcDrawable->y;
/* clip the source */
if (pSrcDrawable->type == DRAWABLE_PIXMAP) {
if ((pSrcDrawable == pDstDrawable) && (pGC->clientClipType == CT_NONE))
prgnSrcClip = pGC->pCompositeClip;
else
fastClip = 1;
} else { /* Window */
if (pGC->subWindowMode == IncludeInferiors) {
if (!((WindowPtr) pSrcDrawable)->parent) {
/*
* special case bitblt from root window in
* IncludeInferiors mode; just like from a pixmap
*/
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;
/* Don't create a source region if we are doing a fast clip */
if (fastClip) {
fastExpose = 1;
/*
* clip the source; if regions extend beyond the source size,
* make sure exposure events get sent
*/
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 {
REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);
}
dstx += pDstDrawable->x;
dsty += pDstDrawable->y;
if (pDstDrawable->type == DRAWABLE_WINDOW) {
if (!((WindowPtr)pDstDrawable)->realized) {
if (!fastClip)
REGION_UNINIT(pGC->pScreen, &rgnDst);
if (freeSrcClip)
REGION_DESTROY(pGC->pScreen, prgnSrcClip);
return NULL;
}
}
dx = srcx - dstx;
dy = srcy - dsty;
/* Translate and clip the dst to the destination composite clip */
if (fastClip) {
RegionPtr cclip;
/* Translate the region directly */
fastBox.x1 -= dx;
fastBox.x2 -= dx;
fastBox.y1 -= dy;
fastBox.y2 -= dy;
/* If the destination composite clip is one rectangle we can
do the clip directly. Otherwise we have to create a full
blown region and call intersect */
cclip = pGC->pCompositeClip;
if (REGION_NUM_RECTS(cclip) == 1) {
BoxPtr pBox = REGION_RECTS(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;
/* Check to see if the region is empty */
if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2) {
REGION_NULL(pGC->pScreen, &rgnDst);
} else {
REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
}
} else {
/* We must turn off fastClip now, since we must create
a full blown region. It is intersected with the
composite clip below. */
fastClip = 0;
REGION_INIT(pGC->pScreen, &rgnDst, &fastBox,1);
}
} else {
REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);
}
if (!fastClip) {
REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst,
pGC->pCompositeClip);
}
/* Do bit blitting */
numRects = REGION_NUM_RECTS(&rgnDst);
if (numRects && width && height) {
if(!(pptSrc = (DDXPointPtr)ALLOCATE_LOCAL(numRects *
sizeof(DDXPointRec)))) {
REGION_UNINIT(pGC->pScreen, &rgnDst);
if (freeSrcClip)
REGION_DESTROY(pGC->pScreen, prgnSrcClip);
return NULL;
}
pbox = REGION_RECTS(&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);
DEALLOCATE_LOCAL(pptSrc);
}
prgnExposed = NULL;
if (pGC->fExpose) {
/* Pixmap sources generate a NoExposed (we return NULL to do this) */
if (!fastExpose)
prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
origSource.x, origSource.y,
(int)origSource.width,
(int)origSource.height,
origDest.x, origDest.y, bitPlane);
}
REGION_UNINIT(pGC->pScreen, &rgnDst);
if (freeSrcClip)
REGION_DESTROY(pGC->pScreen, prgnSrcClip);
return prgnExposed;
}
RegionPtr
miDoCopy(DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
GCPtr pGC,
int xIn,
int yIn,
int widthSrc,
int heightSrc,
int xOut, int yOut, miCopyProc copyProc, Pixel bitPlane, void *closure)
{
RegionPtr prgnSrcClip = NULL; /* may be a new region, or just a copy */
Bool freeSrcClip = FALSE;
RegionPtr prgnExposed = NULL;
RegionRec rgnDst;
int dx;
int dy;
int numRects;
int box_x1;
int box_y1;
int box_x2;
int box_y2;
Bool fastSrc = FALSE; /* for fast clipping with pixmap source */
Bool fastDst = FALSE; /* for fast clipping with one rect dest */
Bool fastExpose = FALSE; /* for fast exposures with pixmap source */
/* Short cut for unmapped or fully clipped windows */
if (pDstDrawable->type == DRAWABLE_WINDOW &&
RegionNil(&((WindowPtr)pDstDrawable)->clipList)) {
return NULL;
}
if (pSrcDrawable->pScreen->SourceValidate) {
(*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, xIn, yIn,
widthSrc, heightSrc,
pGC->subWindowMode);
}
/* Compute source clip region */
if (pSrcDrawable->type == DRAWABLE_PIXMAP) {
if ((pSrcDrawable == pDstDrawable) && (!pGC->clientClip))
prgnSrcClip = miGetCompositeClip(pGC);
else
fastSrc = TRUE;
}
else {
if (pGC->subWindowMode == IncludeInferiors) {
/*
* XFree86 DDX empties the border clip when the
* VT is inactive, make sure the region isn't empty
*/
if (!((WindowPtr) pSrcDrawable)->parent &&
RegionNotEmpty(&((WindowPtr) pSrcDrawable)->borderClip)) {
/*
* special case bitblt from root window in
* IncludeInferiors mode; just like from a pixmap
*/
fastSrc = TRUE;
}
else if ((pSrcDrawable == pDstDrawable) && (!pGC->clientClip)) {
prgnSrcClip = miGetCompositeClip(pGC);
}
else {
prgnSrcClip = NotClippedByChildren((WindowPtr) pSrcDrawable);
freeSrcClip = TRUE;
}
}
else {
prgnSrcClip = &((WindowPtr) pSrcDrawable)->clipList;
}
}
xIn += pSrcDrawable->x;
yIn += pSrcDrawable->y;
xOut += pDstDrawable->x;
yOut += pDstDrawable->y;
box_x1 = xIn;
box_y1 = yIn;
box_x2 = xIn + widthSrc;
box_y2 = yIn + heightSrc;
dx = xIn - xOut;
dy = yIn - yOut;
/* Don't create a source region if we are doing a fast clip */
if (fastSrc) {
RegionPtr cclip;
fastExpose = TRUE;
/*
* clip the source; if regions extend beyond the source size,
* make sure exposure events get sent
*/
if (box_x1 < pSrcDrawable->x) {
box_x1 = pSrcDrawable->x;
fastExpose = FALSE;
}
if (box_y1 < pSrcDrawable->y) {
box_y1 = pSrcDrawable->y;
fastExpose = FALSE;
}
if (box_x2 > pSrcDrawable->x + (int) pSrcDrawable->width) {
box_x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
fastExpose = FALSE;
}
if (box_y2 > pSrcDrawable->y + (int) pSrcDrawable->height) {
box_y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
fastExpose = FALSE;
}
/* Translate and clip the dst to the destination composite clip */
box_x1 -= dx;
box_x2 -= dx;
box_y1 -= dy;
box_y2 -= dy;
/* If the destination composite clip is one rectangle we can
do the clip directly. Otherwise we have to create a full
blown region and call intersect */
cclip = miGetCompositeClip(pGC);
if (RegionNumRects(cclip) == 1) {
BoxPtr pBox = RegionRects(cclip);
if (box_x1 < pBox->x1)
box_x1 = pBox->x1;
if (box_x2 > pBox->x2)
box_x2 = pBox->x2;
if (box_y1 < pBox->y1)
box_y1 = pBox->y1;
if (box_y2 > pBox->y2)
box_y2 = pBox->y2;
fastDst = TRUE;
}
}
/* Check to see if the region is empty */
if (box_x1 >= box_x2 || box_y1 >= box_y2) {
RegionNull(&rgnDst);
}
else {
BoxRec box;
box.x1 = box_x1;
box.y1 = box_y1;
box.x2 = box_x2;
box.y2 = box_y2;
RegionInit(&rgnDst, &box, 1);
}
/* Clip against complex source if needed */
if (!fastSrc) {
RegionIntersect(&rgnDst, &rgnDst, prgnSrcClip);
RegionTranslate(&rgnDst, -dx, -dy);
}
/* Clip against complex dest if needed */
if (!fastDst) {
RegionIntersect(&rgnDst, &rgnDst, miGetCompositeClip(pGC));
}
/* Do bit blitting */
numRects = RegionNumRects(&rgnDst);
if (numRects && widthSrc && heightSrc)
miCopyRegion(pSrcDrawable, pDstDrawable, pGC,
&rgnDst, dx, dy, copyProc, bitPlane, closure);
/* Pixmap sources generate a NoExposed (we return NULL to do this) */
if (!fastExpose && pGC->fExpose)
prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
xIn - pSrcDrawable->x,
yIn - pSrcDrawable->y,
widthSrc, heightSrc,
xOut - pDstDrawable->x,
yOut - pDstDrawable->y);
RegionUninit(&rgnDst);
if (freeSrcClip)
RegionDestroy(prgnSrcClip);
return prgnExposed;
}
