content/common/gpu/gpu_memory_buffer_factory.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
   6 #define CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
   7
   8 #include <vector>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "content/common/content_export.h"
  13 #include "ui/gfx/geometry/size.h"
  14 #include "ui/gfx/gpu_memory_buffer.h"
  15 #include "ui/gfx/native_widget_types.h"
  16
  17 namespace gfx {
  18 class GLImage;
  19 }
  20
  21 namespace gpu {
  22 class ImageFactory;
  23 }
  24
  25 namespace content {
  26
  27 class CONTENT_EXPORT GpuMemoryBufferFactory {
  28  public:
  29   struct Configuration {
  30     gfx::GpuMemoryBuffer::Format format;
  31     gfx::GpuMemoryBuffer::Usage usage;
  32   };
  33
  34   virtual ~GpuMemoryBufferFactory() {}
  35
  36   // Gets system supported GPU memory buffer factory types. Preferred type at
  37   // the front of vector.
  38   static void GetSupportedTypes(std::vector<gfx::GpuMemoryBufferType>* types);
  39
  40   // Creates a new factory instance for |type|.
  41   static scoped_ptr<GpuMemoryBufferFactory> Create(
  42       gfx::GpuMemoryBufferType type);
  43
  44   // Gets supported format/usage configurations.
  45   virtual void GetSupportedGpuMemoryBufferConfigurations(
  46       std::vector<Configuration>* configurations) = 0;
  47
  48   // Creates a new GPU memory buffer instance. A valid handle is returned on
  49   // success. It can be called on any thread.
  50   virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
  51       gfx::GpuMemoryBufferId id,
  52       const gfx::Size& size,
  53       gfx::GpuMemoryBuffer::Format format,
  54       gfx::GpuMemoryBuffer::Usage usage,
  55       int client_id,
  56       gfx::PluginWindowHandle surface_handle) = 0;
  57
  58   // Destroys GPU memory buffer identified by |id|.
  59   // It can be called on any thread.
  60   virtual void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
  61                                       int client_id) = 0;
  62
  63   // Type-checking downcast routine.
  64   virtual gpu::ImageFactory* AsImageFactory() = 0;
  65
  66  protected:
  67   GpuMemoryBufferFactory() {}
  68
  69  private:
  70   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferFactory);
  71 };
  72
  73 }  // namespace content
  74
  75 #endif  // CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_