content/common/gpu/gpu_memory_buffer_factory_win.cc

   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 #include "content/common/gpu/gpu_memory_buffer_factory.h"
   6
   7 #include "base/logging.h"
   8 #include "gpu/command_buffer/service/image_factory.h"
   9 #include "ui/gl/gl_image.h"
  10 #include "ui/gl/gl_image_shared_memory.h"
  11
  12 namespace content {
  13 namespace {
  14
  15 class GpuMemoryBufferFactoryImpl : public GpuMemoryBufferFactory,
  16                                    public gpu::ImageFactory {
  17  public:
  18   // Overridden from GpuMemoryBufferFactory:
  19   virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
  20       gfx::GpuMemoryBufferType type,
  21       gfx::GpuMemoryBufferId id,
  22       const gfx::Size& size,
  23       gfx::GpuMemoryBuffer::Format format,
  24       gfx::GpuMemoryBuffer::Usage usage,
  25       int client_id) override {
  26     NOTREACHED();
  27     return gfx::GpuMemoryBufferHandle();
  28   }
  29   virtual void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferType type,
  30                                       gfx::GpuMemoryBufferId id,
  31                                       int client_id) override {
  32     NOTREACHED();
  33   }
  34   virtual gpu::ImageFactory* AsImageFactory() override { return this; }
  35
  36   // Overridden from gpu::ImageFactory:
  37   virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
  38       const gfx::GpuMemoryBufferHandle& handle,
  39       const gfx::Size& size,
  40       gfx::GpuMemoryBuffer::Format format,
  41       unsigned internalformat,
  42       int client_id) override {
  43     switch (handle.type) {
  44       case gfx::SHARED_MEMORY_BUFFER: {
  45         scoped_refptr<gfx::GLImageSharedMemory> image(
  46             new gfx::GLImageSharedMemory(size, internalformat));
  47         if (!image->Initialize(handle, format))
  48           return NULL;
  49
  50         return image;
  51       }
  52       default:
  53         NOTREACHED();
  54         return scoped_refptr<gfx::GLImage>();
  55     }
  56   }
  57 };
  58
  59 }  // namespace
  60
  61 // static
  62 scoped_ptr<GpuMemoryBufferFactory> GpuMemoryBufferFactory::Create() {
  63   return make_scoped_ptr<GpuMemoryBufferFactory>(
  64       new GpuMemoryBufferFactoryImpl);
  65 }
  66
  67 }  // namespace content