Instead of turning clipping off during AA, clip to the offscreen tile when
we're writing to it, then restore the onscreen clip when copying it back
to screen. Speeds up rendering of web pages with paths >> tile size.
git-svn-id: http://skia.googlecode.com/svn/trunk@1899 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrContext.cpp b/gpu/src/GrContext.cpp
index dcaba1d..ef5ad11 100644
--- a/gpu/src/GrContext.cpp
+++ b/gpu/src/GrContext.cpp
@@ -545,6 +545,7 @@
GrTextureEntry* fEntry0;
GrTextureEntry* fEntry1;
GrDrawTarget::SavedDrawState fSavedState;
+ GrClip fClip;
};
bool GrContext::doOffscreenAA(GrDrawTarget* target,
@@ -658,6 +659,8 @@
record->fTileCountX = GrIDivRoundUp(boundW, record->fTileSizeX);
record->fTileCountY = GrIDivRoundUp(boundH, record->fTileSizeY);
+ record->fClip = target->getClip();
+
target->saveCurrentDrawState(&record->fSavedState);
return true;
}
@@ -684,15 +687,13 @@
scaleM.setScale(record->fScale * GR_Scalar1, record->fScale * GR_Scalar1);
target->postConcatViewMatrix(scaleM);
- // clip gets applied in second pass
- target->disableState(GrDrawTarget::kClip_StateBit);
-
int w = (tileX == record->fTileCountX-1) ? boundRect.fRight - left :
record->fTileSizeX;
int h = (tileY == record->fTileCountY-1) ? boundRect.fBottom - top :
record->fTileSizeY;
GrIRect clear = SkIRect::MakeWH(record->fScale * w,
record->fScale * h);
+ target->setClip(GrClip(clear));
#if 0
// visualize tile boundaries by setting edges of offscreen to white
// and interior to tranparent. black.
@@ -779,6 +780,7 @@
int stageMask = paint.getActiveStageMask();
target->restoreDrawState(record->fSavedState);
+ target->setClip(record->fClip);
if (stageMask) {
GrMatrix invVM;