src/content/common/gpu/gpu_memory_buffer_factory_ozone.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 #include "ui/ozone/gpu/gpu_memory_buffer_factory_ozone_native_buffer.h"
  12
  13 namespace content {
  14 namespace {
  15
  16 class GpuMemoryBufferFactoryImpl : public GpuMemoryBufferFactory,
  17                                    public gpu::ImageFactory {
  18  public:
  19   // Overridden from GpuMemoryBufferFactory:
  20   virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
  21       gfx::GpuMemoryBufferType type,
  22       gfx::GpuMemoryBufferId id,
  23       const gfx::Size& size,
  24       gfx::GpuMemoryBuffer::Format format,
  25       gfx::GpuMemoryBuffer::Usage usage,
  26       int client_id) override {
  27     switch (type) {
  28       case gfx::OZONE_NATIVE_BUFFER: {
  29         if (!ozone_buffer_factory_.CreateGpuMemoryBuffer(
  30                 id, size, format, usage, client_id)) {
  31           return gfx::GpuMemoryBufferHandle();
  32         }
  33         gfx::GpuMemoryBufferHandle handle;
  34         handle.type = gfx::OZONE_NATIVE_BUFFER;
  35         handle.id = id;
  36         return handle;
  37       }
  38       default:
  39         NOTREACHED();
  40         return gfx::GpuMemoryBufferHandle();
  41     }
  42   }
  43   virtual void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferType type,
  44                                       gfx::GpuMemoryBufferId id,
  45                                       int client_id) override {
  46     switch (type) {
  47       case gfx::OZONE_NATIVE_BUFFER:
  48         ozone_buffer_factory_.DestroyGpuMemoryBuffer(id, client_id);
  49         break;
  50       default:
  51         NOTREACHED();
  52         break;
  53     }
  54   }
  55   virtual gpu::ImageFactory* AsImageFactory() override { return this; }
  56
  57   // Overridden from gpu::ImageFactory:
  58   virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
  59       const gfx::GpuMemoryBufferHandle& handle,
  60       const gfx::Size& size,
  61       gfx::GpuMemoryBuffer::Format format,
  62       unsigned internalformat,
  63       int client_id) override {
  64     switch (handle.type) {
  65       case gfx::SHARED_MEMORY_BUFFER: {
  66         scoped_refptr<gfx::GLImageSharedMemory> image(
  67             new gfx::GLImageSharedMemory(size, internalformat));
  68         if (!image->Initialize(handle, format))
  69           return NULL;
  70
  71         return image;
  72       }
  73       case gfx::OZONE_NATIVE_BUFFER:
  74         return ozone_buffer_factory_.CreateImageForGpuMemoryBuffer(
  75             handle.id, size, format, internalformat, client_id);
  76       default:
  77         NOTREACHED();
  78         return scoped_refptr<gfx::GLImage>();
  79     }
  80   }
  81
  82  private:
  83   ui::GpuMemoryBufferFactoryOzoneNativeBuffer ozone_buffer_factory_;
  84 };
  85
  86 }  // namespace
  87
  88 // static
  89 scoped_ptr<GpuMemoryBufferFactory> GpuMemoryBufferFactory::Create() {
  90   return make_scoped_ptr<GpuMemoryBufferFactory>(
  91       new GpuMemoryBufferFactoryImpl);
  92 }
  93
  94 }  // namespace content