src/content/common/gpu/gpu_memory_buffer_factory_mac.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 "ui/gl/gl_image.h"
   9 #include "ui/gl/gl_image_io_surface.h"
  10 #include "ui/gl/gl_image_shared_memory.h"
  11
  12 namespace content {
  13 namespace {
  14
  15 class GpuMemoryBufferFactoryImpl : public GpuMemoryBufferFactory {
  16  public:
  17   // Overridden from GpuMemoryBufferFactory:
  18   virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
  19       const gfx::GpuMemoryBufferHandle& handle,
  20       const gfx::Size& size,
  21       unsigned internalformat,
  22       unsigned usage) OVERRIDE {
  23     NOTREACHED();
  24     return gfx::GpuMemoryBufferHandle();
  25   }
  26   virtual void DestroyGpuMemoryBuffer(
  27       const gfx::GpuMemoryBufferHandle& handle) OVERRIDE {
  28     NOTREACHED();
  29   }
  30   virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
  31       const gfx::GpuMemoryBufferHandle& handle,
  32       const gfx::Size& size,
  33       unsigned internalformat,
  34       int client_id) OVERRIDE {
  35     switch (handle.type) {
  36       case gfx::SHARED_MEMORY_BUFFER: {
  37         scoped_refptr<gfx::GLImageSharedMemory> image(
  38             new gfx::GLImageSharedMemory(size, internalformat));
  39         if (!image->Initialize(handle))
  40           return NULL;
  41
  42         return image;
  43       }
  44       case gfx::IO_SURFACE_BUFFER: {
  45         scoped_refptr<gfx::GLImageIOSurface> image(
  46             new gfx::GLImageIOSurface(size));
  47         if (!image->Initialize(handle))
  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