Implement automatic texture size allocation for layers

This fix several issues (3d transforms, etc.) and in general
makes websites using layers snappier (gmail, etc.)

bug:3367038 bug:3367048
Change-Id: Ib178416209c3636c7700296978a1f35a7a54ee22

1 files changed, 13 insertions, 1 deletions

diff --git a/WebCore/platform/graphics/android/TilesManager.cpp b/WebCore/platform/graphics/android/TilesManager.cpp
index 81b0404..8cbca35 100644
--- a/WebCore/platform/graphics/android/TilesManager.cpp
+++ b/WebCore/platform/graphics/android/TilesManager.cpp
@@ -61,7 +61,9 @@
 #define TILE_HEIGHT 300
 
 // Define a maximum amount of ram used by layers
-#define MAX_LAYERS_ALLOCATION 20971520 // 20Mb
+#define MAX_LAYERS_ALLOCATION 33554432 // 32Mb
+// Define a maximum amount of ram used by one layer
+#define MAX_LAYER_ALLOCATION 8388608 // 8Mb
 #define BYTES_PER_PIXEL 4 // 8888 config
 
 namespace WebCore {
@@ -339,6 +341,16 @@ LayerTexture* TilesManager::createTextureForLayer(LayerAndroid* layer, const Int
     return texture;
 }
 
+int TilesManager::maxLayersAllocation()
+{
+    return MAX_LAYERS_ALLOCATION;
+}
+
+int TilesManager::maxLayerAllocation()
+{
+    return MAX_LAYER_ALLOCATION;
+}
+
 int TilesManager::maxTextureCount()
 {
     android::Mutex::Autolock lock(m_texturesLock);