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authorChris Craik <ccraik@google.com>2012-08-24 16:58:29 -0700
committerChris Craik <ccraik@google.com>2012-08-24 16:58:29 -0700
commitae7d73128baa76b45c16886913891a8a3c0baee3 (patch)
tree541759389cdf61f0c817208c919767338d0bd1ea /Source
parent19756ca1956aa2f3a4c7ef5095cb95a3010338ac (diff)
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Don't track the opaque area of small drawing operations
Avoids region & matrix computation work for small ops. Area value of 750 determined empirically. Change-Id: Iffc041ff69cd47c152ae4f71a474f4f6ccdc0bc5
Diffstat (limited to 'Source')
-rw-r--r--Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextRecording.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextRecording.cpp b/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextRecording.cpp
index 15214ad..3237a80 100644
--- a/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextRecording.cpp
+++ b/Source/WebCore/platform/graphics/android/context/PlatformGraphicsContextRecording.cpp
@@ -47,6 +47,7 @@
#define NEW_OP(X) new (heap()) GraphicsOperation::X
#define USE_CLIPPING_PAINTER true
+#define MIN_TRACKED_OPAQUE_AREA 750
namespace WebCore {
@@ -1044,7 +1045,9 @@ void PlatformGraphicsContextRecording::appendDrawingOperation(
return;
}
#if USE_CLIPPING_PAINTER
- if (operation->isOpaque() && !untranslatedBounds.isEmpty()) {
+ if (operation->isOpaque()
+ && !untranslatedBounds.isEmpty()
+ && (untranslatedBounds.width() * untranslatedBounds.height() > MIN_TRACKED_OPAQUE_AREA)) {
// if the operation maps to an opaque rect, record the area it will cover
operation->setOpaqueRect(calculateCoveredBounds(untranslatedBounds));
}