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 "ui/gl/gl_image.h"
   9 #include "ui/gl/gl_image_shared_memory.h"
  10 #include "ui/ozone/gpu/gpu_memory_buffer_factory_ozone_native_buffer.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     switch (handle.type) {
  24       case gfx::OZONE_NATIVE_BUFFER:
  25         return ozone_buffer_factory_.CreateGpuMemoryBuffer(
  26                    handle.global_id, size, internalformat, usage)
  27                    ? handle
  28                    : gfx::GpuMemoryBufferHandle();
  29       default:
  30         NOTREACHED();
  31         return gfx::GpuMemoryBufferHandle();
  32     }
  33   }
  34   virtual void DestroyGpuMemoryBuffer(
  35       const gfx::GpuMemoryBufferHandle& handle) OVERRIDE {
  36     switch (handle.type) {
  37       case gfx::OZONE_NATIVE_BUFFER:
  38         ozone_buffer_factory_.DestroyGpuMemoryBuffer(handle.global_id);
  39         break;
  40       default:
  41         NOTREACHED();
  42         break;
  43     }
  44   }
  45   virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
  46       const gfx::GpuMemoryBufferHandle& handle,
  47       const gfx::Size& size,
  48       unsigned internalformat,
  49       int client_id) OVERRIDE {
  50     switch (handle.type) {
  51       case gfx::SHARED_MEMORY_BUFFER: {
  52         scoped_refptr<gfx::GLImageSharedMemory> image(
  53             new gfx::GLImageSharedMemory(size, internalformat));
  54         if (!image->Initialize(handle))
  55           return NULL;
  56
  57         return image;
  58       }
  59       case gfx::OZONE_NATIVE_BUFFER:
  60         // Verify that client is the owner of the buffer we're about to use.
  61         if (handle.global_id.secondary_id != client_id)
  62           return scoped_refptr<gfx::GLImage>();
  63
  64         return ozone_buffer_factory_.CreateImageForGpuMemoryBuffer(
  65             handle.global_id, size, internalformat);
  66       default:
  67         NOTREACHED();
  68         return scoped_refptr<gfx::GLImage>();
  69     }
  70   }
  71
  72  private:
  73   ui::GpuMemoryBufferFactoryOzoneNativeBuffer ozone_buffer_factory_;
  74 };
  75
  76 }  // namespace
  77
  78 // static
  79 scoped_ptr<GpuMemoryBufferFactory> GpuMemoryBufferFactory::Create() {
  80   return make_scoped_ptr<GpuMemoryBufferFactory>(
  81       new GpuMemoryBufferFactoryImpl);
  82 }
  83
  84 }  // namespace content