media/renderers/mock_gpu_video_accelerator_factories.cc

   1 // Copyright 2013 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 "media/renderers/mock_gpu_video_accelerator_factories.h"
   6
   7 #include "ui/gfx/buffer_format_util.h"
   8 #include "ui/gfx/gpu_memory_buffer.h"
   9
  10 namespace media {
  11
  12 namespace {
  13
  14 class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
  15  public:
  16   GpuMemoryBufferImpl(const gfx::Size& size, gfx::BufferFormat format)
  17       : format_(format), size_(size),
  18         num_planes_(gfx::NumberOfPlanesForBufferFormat(format)) {
  19     DCHECK(gfx::BufferFormat::R_8 == format_ ||
  20            gfx::BufferFormat::YUV_420_BIPLANAR == format_ ||
  21            gfx::BufferFormat::UYVY_422 == format_);
  22     DCHECK(num_planes_ <= kMaxPlanes);
  23     for (int i = 0; i < static_cast<int>(num_planes_); ++i) {
  24       bytes_[i].resize(
  25           gfx::RowSizeForBufferFormat(size_.width(), format_, i) *
  26           size_.height() / gfx::SubsamplingFactorForBufferFormat(format_, i));
  27     }
  28   }
  29
  30   // Overridden from gfx::GpuMemoryBuffer:
  31   bool Map(void** data) override {
  32     for (size_t plane = 0; plane < num_planes_; ++plane)
  33       data[plane] = &bytes_[plane][0];
  34     return true;
  35   }
  36   void Unmap() override{};
  37   bool IsMapped() const override {
  38     NOTREACHED();
  39     return false;
  40   }
  41   gfx::BufferFormat GetFormat() const override {
  42     return format_;
  43   }
  44   void GetStride(int* strides) const override {
  45     for (int plane = 0; plane < static_cast<int>(num_planes_); ++plane) {
  46       strides[plane] = static_cast<int>(
  47           gfx::RowSizeForBufferFormat(size_.width(), format_, plane));
  48     }
  49   }
  50   gfx::GpuMemoryBufferId GetId() const override {
  51     NOTREACHED();
  52     return gfx::GpuMemoryBufferId(0);
  53   }
  54   gfx::GpuMemoryBufferHandle GetHandle() const override {
  55     NOTREACHED();
  56     return gfx::GpuMemoryBufferHandle();
  57   }
  58   ClientBuffer AsClientBuffer() override {
  59     return reinterpret_cast<ClientBuffer>(this);
  60   }
  61
  62  private:
  63   static const size_t kMaxPlanes = 3;
  64
  65   gfx::BufferFormat format_;
  66   const gfx::Size size_;
  67   size_t num_planes_;
  68   std::vector<uint8> bytes_[kMaxPlanes];
  69 };
  70
  71 }  // unnamed namespace
  72
  73 MockGpuVideoAcceleratorFactories::MockGpuVideoAcceleratorFactories() {}
  74
  75 MockGpuVideoAcceleratorFactories::~MockGpuVideoAcceleratorFactories() {}
  76
  77 bool MockGpuVideoAcceleratorFactories::IsGpuVideoAcceleratorEnabled() {
  78   return true;
  79 }
  80
  81 scoped_ptr<gfx::GpuMemoryBuffer>
  82 MockGpuVideoAcceleratorFactories::AllocateGpuMemoryBuffer(
  83     const gfx::Size& size,
  84     gfx::BufferFormat format,
  85     gfx::BufferUsage usage) {
  86   return make_scoped_ptr<gfx::GpuMemoryBuffer>(
  87       new GpuMemoryBufferImpl(size, format));
  88 }
  89
  90 scoped_ptr<base::SharedMemory>
  91 MockGpuVideoAcceleratorFactories::CreateSharedMemory(size_t size) {
  92   return nullptr;
  93 }
  94
  95 scoped_ptr<VideoDecodeAccelerator>
  96 MockGpuVideoAcceleratorFactories::CreateVideoDecodeAccelerator() {
  97   return scoped_ptr<VideoDecodeAccelerator>(DoCreateVideoDecodeAccelerator());
  98 }
  99
 100 scoped_ptr<VideoEncodeAccelerator>
 101 MockGpuVideoAcceleratorFactories::CreateVideoEncodeAccelerator() {
 102   return scoped_ptr<VideoEncodeAccelerator>(DoCreateVideoEncodeAccelerator());
 103 }
 104
 105 bool MockGpuVideoAcceleratorFactories::ShouldUseGpuMemoryBuffersForVideoFrames()
 106     const {
 107   return false;
 108 }
 109
 110 unsigned MockGpuVideoAcceleratorFactories::ImageTextureTarget() {
 111   return GL_TEXTURE_2D;
 112 }
 113
 114 }  // namespace media