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path: root/hw/xfree86/xaa/xaaBitBlt.c
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Diffstat (limited to 'hw/xfree86/xaa/xaaBitBlt.c')
-rw-r--r--hw/xfree86/xaa/xaaBitBlt.c246
1 files changed, 127 insertions, 119 deletions
diff --git a/hw/xfree86/xaa/xaaBitBlt.c b/hw/xfree86/xaa/xaaBitBlt.c
index 049dbfbe7..c1595c497 100644
--- a/hw/xfree86/xaa/xaaBitBlt.c
+++ b/hw/xfree86/xaa/xaaBitBlt.c
@@ -21,20 +21,18 @@
#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 )
+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 prgnSrcClip = NULL; /* may be a new region, or just a copy */
RegionPtr prgnExposed;
Bool freeSrcClip = FALSE;
RegionRec rgnDst;
@@ -44,8 +42,8 @@ XAABitBlt(
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 */
+ int fastClip = 0; /* for fast clipping with pixmap source */
+ int fastExpose = 0; /* for fast exposures with pixmap source */
origSource.x = srcx;
origSource.y = srcy;
@@ -55,9 +53,9 @@ XAABitBlt(
origDest.y = dsty;
if (pSrcDrawable->pScreen->SourceValidate) {
- (*pSrcDrawable->pScreen->SourceValidate) (
- pSrcDrawable, srcx, srcy, width, height,
- pGC->subWindowMode);
+ (*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, srcx, srcy,
+ width, height,
+ pGC->subWindowMode);
}
srcx += pSrcDrawable->x;
@@ -65,28 +63,32 @@ XAABitBlt(
/* 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;
- }
+ 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;
@@ -96,43 +98,44 @@ XAABitBlt(
/* 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 {
- RegionInit(&rgnDst, &fastBox, 1);
- RegionIntersect(&rgnDst, &rgnDst, prgnSrcClip);
+ 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 {
+ 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;
- }
+ if (!((WindowPtr) pDstDrawable)->realized) {
+ if (!fastClip)
+ RegionUninit(&rgnDst);
+ if (freeSrcClip)
+ RegionDestroy(prgnSrcClip);
+ return NULL;
+ }
}
dx = srcx - dstx;
@@ -140,7 +143,7 @@ XAABitBlt(
/* Translate and clip the dst to the destination composite clip */
if (fastClip) {
- RegionPtr cclip;
+ RegionPtr cclip;
/* Translate the region directly */
fastBox.x1 -= dx;
@@ -148,74 +151,79 @@ XAABitBlt(
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 */
+ /* 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;
+ 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;
-
- /* Check to see if the region is empty */
- if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2) {
- RegionNull(&rgnDst);
- } else {
- RegionInit(&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;
- RegionInit(&rgnDst, &fastBox,1);
- }
- } else {
+ 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;
+
+ /* Check to see if the region is empty */
+ if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2) {
+ RegionNull(&rgnDst);
+ }
+ else {
+ RegionInit(&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;
+ RegionInit(&rgnDst, &fastBox, 1);
+ }
+ }
+ else {
RegionTranslate(&rgnDst, -dx, -dy);
}
if (!fastClip) {
- RegionIntersect(&rgnDst, &rgnDst,
- pGC->pCompositeClip);
+ RegionIntersect(&rgnDst, &rgnDst, pGC->pCompositeClip);
}
/* Do bit blitting */
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);
+ 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) {
/* 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);
+ 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);
+ RegionDestroy(prgnSrcClip);
return prgnExposed;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 17:00:22 +0000