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authorJamey Sharp <jamey@minilop.net>2010-04-23 19:33:49 -0700
committerJamey Sharp <jamey@minilop.net>2010-06-03 14:04:20 -0700
commitf114f54986aca1add4c8808a05d9692e289547e7 (patch)
treed4b263deffec065a787fab3ecea490138fd553e0
parenta7c7ebe4b3a0df1a4d1ffe3c690cfb21470f103d (diff)
Accumulate graphics exposures incrementally in PanoramiXCopyArea/Plane.
This fuses two loops in each function, eliminating an intermediate MAXSCREENS-sized array from each. Aside from being more efficient, I believe this is equivalent to the previous implementation, since - each per-screen GC has the graphicsExposures flag set the same way, and - the REGION_* macros ignore their screen argument. Signed-off-by: Jamey Sharp <jamey@minilop.net> Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Tiago Vignatti <tiago.vignatti@nokia.com> Tested-by: Tiago Vignatti <tiago.vignatti@nokia.com> (i686 GNU/Linux)
-rw-r--r--Xext/panoramiXprocs.c62
1 files changed, 26 insertions, 36 deletions
diff --git a/Xext/panoramiXprocs.c b/Xext/panoramiXprocs.c
index a7f8a0cd5..5ccbe27c8 100644
--- a/Xext/panoramiXprocs.c
+++ b/Xext/panoramiXprocs.c
@@ -1084,10 +1084,12 @@ int PanoramiXCopyArea(ClientPtr client)
} else {
DrawablePtr pDst = NULL, pSrc = NULL;
GCPtr pGC = NULL;
- RegionPtr pRgn[MAXSCREENS];
+ RegionRec totalReg;
int rc;
+ REGION_NULL(unusedScreen, &totalReg);
FOR_NSCREENS_BACKWARD(j) {
+ RegionPtr pRgn;
stuff->dstDrawable = dst->info[j].id;
stuff->srcDrawable = src->info[j].id;
stuff->gc = gc->info[j].id;
@@ -1116,37 +1118,30 @@ int PanoramiXCopyArea(ClientPtr client)
} else
pSrc = pDst;
- pRgn[j] = (*pGC->ops->CopyArea)(pSrc, pDst, pGC,
+ pRgn = (*pGC->ops->CopyArea)(pSrc, pDst, pGC,
stuff->srcX, stuff->srcY,
stuff->width, stuff->height,
stuff->dstX, stuff->dstY);
+ if(pGC->graphicsExposures && pRgn) {
+ if(srcIsRoot) {
+ REGION_TRANSLATE(unusedScreen, pRgn,
+ screenInfo.screens[j]->x, screenInfo.screens[j]->y);
+ }
+ REGION_APPEND(unusedScreen, &totalReg, pRgn);
+ REGION_DESTROY(unusedScreen, pRgn);
+ }
- if(dstShared) {
- while(j--) pRgn[j] = NULL;
+ if(dstShared)
break;
- }
}
if(pGC->graphicsExposures) {
ScreenPtr pScreen = pDst->pScreen;
- RegionRec totalReg;
Bool overlap;
-
- REGION_NULL(pScreen, &totalReg);
- FOR_NSCREENS_BACKWARD(j) {
- if(pRgn[j]) {
- if(srcIsRoot) {
- REGION_TRANSLATE(pScreen, pRgn[j],
- screenInfo.screens[j]->x, screenInfo.screens[j]->y);
- }
- REGION_APPEND(pScreen, &totalReg, pRgn[j]);
- REGION_DESTROY(pScreen, pRgn[j]);
- }
- }
- REGION_VALIDATE(pScreen, &totalReg, &overlap);
+ REGION_VALIDATE(unusedScreen, &totalReg, &overlap);
(*pScreen->SendGraphicsExpose)(
client, &totalReg, stuff->dstDrawable, X_CopyArea, 0);
- REGION_UNINIT(pScreen, &totalReg);
+ REGION_UNINIT(unusedScreen, &totalReg);
}
}
@@ -1163,7 +1158,7 @@ int PanoramiXCopyPlane(ClientPtr client)
Bool srcShared, dstShared;
DrawablePtr psrcDraw, pdstDraw = NULL;
GCPtr pGC = NULL;
- RegionPtr pRgn[MAXSCREENS];
+ RegionRec totalReg;
REQUEST(xCopyPlaneReq);
REQUEST_SIZE_MATCH(xCopyPlaneReq);
@@ -1198,7 +1193,9 @@ int PanoramiXCopyPlane(ClientPtr client)
srcx = stuff->srcX; srcy = stuff->srcY;
dstx = stuff->dstX; dsty = stuff->dstY;
+ REGION_NULL(unusedScreen, &totalReg);
FOR_NSCREENS_BACKWARD(j) {
+ RegionPtr pRgn;
stuff->dstDrawable = dst->info[j].id;
stuff->srcDrawable = src->info[j].id;
stuff->gc = gc->info[j].id;
@@ -1231,33 +1228,26 @@ int PanoramiXCopyPlane(ClientPtr client)
return(BadValue);
}
- pRgn[j] = (*pGC->ops->CopyPlane)(psrcDraw, pdstDraw, pGC,
+ pRgn = (*pGC->ops->CopyPlane)(psrcDraw, pdstDraw, pGC,
stuff->srcX, stuff->srcY,
stuff->width, stuff->height,
stuff->dstX, stuff->dstY, stuff->bitPlane);
+ if(pGC->graphicsExposures && pRgn) {
+ REGION_APPEND(unusedScreen, &totalReg, pRgn);
+ REGION_DESTROY(unusedScreen, pRgn);
+ }
- if(dstShared) {
- while(j--) pRgn[j] = NULL;
+ if(dstShared)
break;
- }
}
if(pGC->graphicsExposures) {
ScreenPtr pScreen = pdstDraw->pScreen;
- RegionRec totalReg;
Bool overlap;
-
- REGION_NULL(pScreen, &totalReg);
- FOR_NSCREENS_BACKWARD(j) {
- if(pRgn[j]) {
- REGION_APPEND(pScreen, &totalReg, pRgn[j]);
- REGION_DESTROY(pScreen, pRgn[j]);
- }
- }
- REGION_VALIDATE(pScreen, &totalReg, &overlap);
+ REGION_VALIDATE(unusedScreen, &totalReg, &overlap);
(*pScreen->SendGraphicsExpose)(
client, &totalReg, stuff->dstDrawable, X_CopyPlane, 0);
- REGION_UNINIT(pScreen, &totalReg);
+ REGION_UNINIT(unusedScreen, &totalReg);
}
return Success;