Chromium roll (https://codereview.chromium.org/976353002)

gpu/command_buffer/service/image_factory.h

 // Copyright 2014 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 GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_
 #define GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_
 
 #include "base/memory/ref_counted.h"
 #include "gpu/gpu_export.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 namespace gfx {
 class GLImage;
 }
 
 namespace gpu {
+struct Capabilities;
 
 class GPU_EXPORT ImageFactory {
  public:
   ImageFactory();
 
   // Returns a valid GpuMemoryBuffer format given a valid internalformat as
   // defined by CHROMIUM_gpu_memory_buffer_image.
   static gfx::GpuMemoryBuffer::Format ImageFormatToGpuMemoryBufferFormat(
       unsigned internalformat);
 
   // Returns a valid GpuMemoryBuffer usage given a valid usage as defined by
   // CHROMIUM_gpu_memory_buffer_image.
   static gfx::GpuMemoryBuffer::Usage ImageUsageToGpuMemoryBufferUsage(
       unsigned usage);
 
   // Returns true if |internalformat| is compatible with |format|.
   static bool IsImageFormatCompatibleWithGpuMemoryBufferFormat(
       unsigned internalformat,
       gfx::GpuMemoryBuffer::Format format);
 
+  // Returns true if |format| is supported by |capabilities|.
+  static bool IsGpuMemoryBufferFormatSupported(
+      gfx::GpuMemoryBuffer::Format format,
+      const Capabilities& capabilities);
+
+  // Returns true if |size| is valid for |format|.
+  static bool IsImageSizeValidForGpuMemoryBufferFormat(
+      const gfx::Size& size,
+      gfx::GpuMemoryBuffer::Format format);
+
   // Creates a GLImage instance for GPU memory buffer identified by |handle|.
   // |client_id| should be set to the client requesting the creation of instance
   // and can be used by factory implementation to verify access rights.
   virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
       const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,
       gfx::GpuMemoryBuffer::Format format,
       unsigned internalformat,
       int client_id) = 0;
 
  protected:
   virtual ~ImageFactory();
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_