Add fast drawing path for repeat background image.

In the slow draw path, we are drawing the small background image one by one.
Now in the fast path, we can use the GL shader to repeat the iamges.

bug:6579681

Change-Id: I8ab413bdd073cb867002b77b36d4a1361290ecb2

1 files changed, 9 insertions, 0 deletions

diff --git a/Source/WebCore/platform/graphics/android/layers/BaseLayerAndroid.h b/Source/WebCore/platform/graphics/android/layers/BaseLayerAndroid.h
index b43dc83..06aa21b 100644
--- a/Source/WebCore/platform/graphics/android/layers/BaseLayerAndroid.h
+++ b/Source/WebCore/platform/graphics/android/layers/BaseLayerAndroid.h
@@ -34,6 +34,7 @@ namespace WebCore {
 class Image;
 class RenderLayerCompositor;
 class RenderStyle;
+class BackgroundImagePositioning;
 
 class BaseLayerAndroid : public LayerAndroid {
 public:
@@ -74,6 +75,14 @@ public:
     static Image* GetCachedImage(PassRefPtr<RenderStyle> style);
 
 private:
+    bool drawSimpleQuad(ImageTexture* imageTexture,
+                        BackgroundImagePositioning* position,
+                        const IntPoint& repeatTimes, const FloatPoint& startPoint,
+                        const FloatPoint& origin, const Color& backgroundColor);
+    void drawRepeatedGrid(ImageTexture* imageTexture,
+                          BackgroundImagePositioning* position,
+                          const IntPoint& repeatTimes, const FloatPoint& startPoint,
+                          const FloatPoint& origin, const Color& backgroundColor);
     int m_width;
     int m_height;
 };