cc: Adding support for RGBA_4444 tile textures

gpu/command_buffer/service/async_pixel_transfer_manager_android.cc

Index: gpu/command_buffer/service/async_pixel_transfer_manager_android.cc
diff --git a/gpu/command_buffer/service/async_pixel_transfer_manager_android.cc b/gpu/command_buffer/service/async_pixel_transfer_manager_android.cc
index 8de7d58a07af2d704361313a8c92fe874f516c6d..01e5836affdb3b44700c510c76ac45858d456c44 100644
--- a/gpu/command_buffer/service/async_pixel_transfer_manager_android.cc
+++ b/gpu/command_buffer/service/async_pixel_transfer_manager_android.cc
@@ -4,6 +4,7 @@
 
 #include "gpu/command_buffer/service/async_pixel_transfer_manager.h"
 
+#include "base/android/sys_utils.h"
 #include "base/debug/trace_event.h"
 #include "gpu/command_buffer/service/async_pixel_transfer_manager_egl.h"
 #include "gpu/command_buffer/service/async_pixel_transfer_manager_idle.h"
@@ -50,11 +51,12 @@ AsyncPixelTransferManager* AsyncPixelTransferManager::Create(
           context->HasExtension("EGL_KHR_gl_texture_2D_image") &&
           context->HasExtension("GL_OES_EGL_image") &&
           !IsBroadcom() &&
-          !IsImagination()) {
+          !IsImagination() &&
+          !base::android::SysUtils::IsLowEndDevice()) {

[no sievers, 2013/08/13 01:13:58]

It'd be nice if this could be another property. One that indicates we are using
16bit textures which don't work with EGL images.

[no sievers, 2013/08/13 01:26:30]

Actually, what happens currently if you use glAsyncTexImage2D() with a format
that is not compatible with EGL image?

I think it should be more dynamic to fall back to a different uploader.

[kaanb, 2013/08/13 04:20:40]

Opened crbug.com/271929 and added a comment that explains why this check is here

         return new AsyncPixelTransferManagerEGL;
       }
       LOG(INFO) << "Async pixel transfers not supported";
-      return new AsyncPixelTransferManagerIdle;
+      return new AsyncPixelTransferManagerSync;
     case gfx::kGLImplementationMockGL:
       return new AsyncPixelTransferManagerStub;
     default: