Bug 1206076 - Use a specialized PersistentBufferProvider for Canvas2D when using a SkiaGL DrawTarget. r=jrmuizel, a=sylvestre

--HG--
extra : source : 499fd45447a200cf0cc8a721c5ff85995e9c1340

b2g/app/b2g.js

@@ -984,7 +984,7 @@ pref("devtools.debugger.unix-domain-socket", "/data/local/debugger-socket");
 // falling back to Skia/software for smaller canvases
 #ifdef MOZ_WIDGET_GONK
 pref("gfx.canvas.azure.backends", "skia");
-pref("gfx.canvas.azure.accelerated", true);
+pref("gfx.canvas.azure.accelerated", false);
 #endif
 
 // Turn on dynamic cache size for Skia

dom/canvas/CanvasRenderingContext2D.cpp

@@ -1399,6 +1399,7 @@ CanvasRenderingContext2D::EnsureTarget(RenderingMode aRenderingMode)
           mTarget = Factory::CreateDrawTargetSkiaWithGrContext(glue->GetGrContext(), size, format);
           if (mTarget) {
             AddDemotableContext(this);
+            mBufferProvider = new PersistentBufferProviderBasic(mTarget);
           } else {
             printf_stderr("Failed to create a SkiaGL DrawTarget, falling back to software\n");
             mode = RenderingMode::SoftwareBackendMode;

modules/libpref/init/all.js

@@ -681,7 +681,7 @@ pref("gfx.content.azure.backends", "direct2d1.1,direct2d,cairo");
 pref("gfx.content.azure.backends", "cg");
 pref("gfx.canvas.azure.backends", "skia");
 // Accelerated cg canvas where available (10.7+)
-pref("gfx.canvas.azure.accelerated", true);
+pref("gfx.canvas.azure.accelerated", false);
 #else
 pref("gfx.canvas.azure.backends", "cairo");
 pref("gfx.content.azure.backends", "cairo");