cc: Add gfx::BufferFormat to cc::ResourceProvider::Resource.

cc/resources/resource_provider.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_RESOURCES_RESOURCE_PROVIDER_H_
 #define CC_RESOURCES_RESOURCE_PROVIDER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 20 matching lines @@
 #include "cc/resources/release_callback_impl.h"
 #include "cc/resources/resource_format.h"
 #include "cc/resources/return_callback.h"
 #include "cc/resources/shared_bitmap.h"
 #include "cc/resources/single_release_callback_impl.h"
 #include "cc/resources/texture_mailbox.h"
 #include "cc/resources/transferable_resource.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/khronos/GLES2/gl2ext.h"
 #include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/buffer_types.h"
 #include "ui/gfx/color_space.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 namespace gpu {
 class GpuMemoryBufferManager;
 namespace gles {
 class GLES2Interface;
 }
 }
@@ skipping 430 matching lines @@
   // and has read fences enabled, the resource will not allow writes
   // until this fence has passed.
   void SetReadLockFence(Fence* fence) { current_read_lock_fence_ = fence; }
 
   // Indicates if we can currently lock this resource for write.
   bool CanLockForWrite(ResourceId id);
 
   // Indicates if this resource may be used for a hardware overlay plane.
   bool IsOverlayCandidate(ResourceId id);
 
+  // Return the format of the underlying buffer that can be used for scanout.
+  gfx::BufferFormat GetBufferFormat(ResourceId id);
+
 #if defined(OS_ANDROID)
   // Indicates if this resource is backed by an Android SurfaceTexture, and thus
   // can't really be promoted to an overlay.
   bool IsBackedBySurfaceTexture(ResourceId id);
 
   // Indicates if this resource wants to receive promotion hints.
   bool WantsPromotionHint(ResourceId id);
 
   // Return the number of resources that request promotion hints.
   size_t CountPromotionHintRequestsForTesting();
@@ skipping 124 matching lines @@
     GLenum original_filter;
     GLenum filter;
     unsigned image_id;
     unsigned bound_image_id;
     TextureHint hint;
     ResourceType type;
 
     // GpuMemoryBuffer resource allocation needs to know how the resource will
     // be used.
     gfx::BufferUsage usage;
+    // This is the the actual format of the underlaying GpuMemoryBuffer, if any,
+    // and might not correspond to ResourceFormat. This format is needed to
+    // scanout the buffer as HW overlay.
+    gfx::BufferFormat buffer_format;
+    // Resource format is the format as seen from the compositor and might not
+    // correspond to buffer_format (e.g: A resouce that was created from a YUV
+    // buffer could be seen as RGB from the compositor/GL.)
     ResourceFormat format;
     SharedBitmapId shared_bitmap_id;
     SharedBitmap* shared_bitmap;
     std::unique_ptr<gfx::GpuMemoryBuffer> gpu_memory_buffer;
     gfx::ColorSpace color_space;
 
    private:
     SynchronizationState synchronization_state_ = SYNCHRONIZED;
     bool needs_sync_token_ = false;
     TextureMailbox mailbox_;
@@ skipping 115 matching lines @@
   // Set of resource Ids that would like to be notified about promotion hints.
   ResourceIdSet wants_promotion_hints_set_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ResourceProvider);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_PROVIDER_H_