content/renderer/media/renderer_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 "content/renderer/media/renderer_gpu_video_accelerator_factories.h"
   6
   7 #include <GLES2/gl2.h>
   8 #include <GLES2/gl2ext.h>
   9
  10 #include "base/bind.h"
  11 #include "content/child/child_gpu_memory_buffer_manager.h"
  12 #include "content/child/child_thread_impl.h"
  13 #include "content/common/gpu/client/context_provider_command_buffer.h"
  14 #include "content/common/gpu/client/gl_helper.h"
  15 #include "content/common/gpu/client/gpu_channel_host.h"
  16 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  17 #include "content/common/gpu/media/gpu_video_accelerator_util.h"
  18 #include "content/renderer/render_thread_impl.h"
  19 #include "gpu/command_buffer/client/gles2_implementation.h"
  20 #include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
  21 #include "media/video/video_decode_accelerator.h"
  22 #include "media/video/video_encode_accelerator.h"
  23
  24 namespace content {
  25
  26 // static
  27 scoped_refptr<RendererGpuVideoAcceleratorFactories>
  28 RendererGpuVideoAcceleratorFactories::Create(
  29     GpuChannelHost* gpu_channel_host,
  30     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
  31     const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
  32     unsigned image_texture_target,
  33     bool enable_video_accelerator) {
  34   scoped_refptr<RendererGpuVideoAcceleratorFactories> factories =
  35       new RendererGpuVideoAcceleratorFactories(gpu_channel_host, task_runner,
  36                                                context_provider,
  37                                                image_texture_target,
  38                                                enable_video_accelerator);
  39   // Post task from outside constructor, since AddRef()/Release() is unsafe from
  40   // within.
  41   task_runner->PostTask(
  42       FROM_HERE,
  43       base::Bind(&RendererGpuVideoAcceleratorFactories::BindContext,
  44                  factories));
  45   return factories;
  46 }
  47
  48 RendererGpuVideoAcceleratorFactories::RendererGpuVideoAcceleratorFactories(
  49     GpuChannelHost* gpu_channel_host,
  50     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
  51     const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
  52     unsigned image_texture_target,
  53     bool enable_video_accelerator)
  54     : task_runner_(task_runner),
  55       gpu_channel_host_(gpu_channel_host),
  56       context_provider_(context_provider),
  57       image_texture_target_(image_texture_target),
  58       video_accelerator_enabled_(enable_video_accelerator),
  59       gpu_memory_buffer_manager_(
  60           ChildThreadImpl::current()->gpu_memory_buffer_manager()),
  61       thread_safe_sender_(ChildThreadImpl::current()->thread_safe_sender()) {
  62   DCHECK(gpu_channel_host_.get());
  63 }
  64
  65 RendererGpuVideoAcceleratorFactories::~RendererGpuVideoAcceleratorFactories() {}
  66
  67 void RendererGpuVideoAcceleratorFactories::BindContext() {
  68   DCHECK(task_runner_->BelongsToCurrentThread());
  69   if (!context_provider_->BindToCurrentThread())
  70     context_provider_ = NULL;
  71 }
  72
  73 WebGraphicsContext3DCommandBufferImpl*
  74 RendererGpuVideoAcceleratorFactories::GetContext3d() {
  75   DCHECK(task_runner_->BelongsToCurrentThread());
  76   if (!context_provider_.get())
  77     return NULL;
  78   if (context_provider_->ContextGL()->GetGraphicsResetStatusKHR() !=
  79       GL_NO_ERROR) {
  80     context_provider_->VerifyContexts();
  81     context_provider_ = NULL;
  82     gl_helper_.reset(NULL);
  83     return NULL;
  84   }
  85   return context_provider_->WebContext3D();
  86 }
  87
  88 GLHelper* RendererGpuVideoAcceleratorFactories::GetGLHelper() {
  89   if (!GetContext3d())
  90     return NULL;
  91
  92   if (gl_helper_.get() == NULL) {
  93     gl_helper_.reset(new GLHelper(GetContext3d()->GetImplementation(),
  94                                   GetContext3d()->GetContextSupport()));
  95   }
  96
  97   return gl_helper_.get();
  98 }
  99
 100 bool RendererGpuVideoAcceleratorFactories::IsGpuVideoAcceleratorEnabled() {
 101   return video_accelerator_enabled_;
 102 }
 103
 104 scoped_ptr<media::VideoDecodeAccelerator>
 105 RendererGpuVideoAcceleratorFactories::CreateVideoDecodeAccelerator() {
 106   DCHECK(video_accelerator_enabled_);
 107   DCHECK(task_runner_->BelongsToCurrentThread());
 108
 109   WebGraphicsContext3DCommandBufferImpl* context = GetContext3d();
 110   if (context && context->GetCommandBufferProxy())
 111     return context->GetCommandBufferProxy()->CreateVideoDecoder();
 112
 113   return nullptr;
 114 }
 115
 116 scoped_ptr<media::VideoEncodeAccelerator>
 117 RendererGpuVideoAcceleratorFactories::CreateVideoEncodeAccelerator() {
 118   DCHECK(video_accelerator_enabled_);
 119   DCHECK(task_runner_->BelongsToCurrentThread());
 120
 121   WebGraphicsContext3DCommandBufferImpl* context = GetContext3d();
 122   if (context && context->GetCommandBufferProxy())
 123     return context->GetCommandBufferProxy()->CreateVideoEncoder();
 124
 125   return nullptr;
 126 }
 127
 128 bool RendererGpuVideoAcceleratorFactories::CreateTextures(
 129     int32 count,
 130     const gfx::Size& size,
 131     std::vector<uint32>* texture_ids,
 132     std::vector<gpu::Mailbox>* texture_mailboxes,
 133     uint32 texture_target) {
 134   DCHECK(task_runner_->BelongsToCurrentThread());
 135   DCHECK(texture_target);
 136
 137   WebGraphicsContext3DCommandBufferImpl* context = GetContext3d();
 138   if (!context)
 139     return false;
 140
 141   gpu::gles2::GLES2Implementation* gles2 = context->GetImplementation();
 142   texture_ids->resize(count);
 143   texture_mailboxes->resize(count);
 144   gles2->GenTextures(count, &texture_ids->at(0));
 145   for (int i = 0; i < count; ++i) {
 146     gles2->ActiveTexture(GL_TEXTURE0);
 147     uint32 texture_id = texture_ids->at(i);
 148     gles2->BindTexture(texture_target, texture_id);
 149     gles2->TexParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 150     gles2->TexParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 151     gles2->TexParameteri(texture_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 152     gles2->TexParameteri(texture_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 153     if (texture_target == GL_TEXTURE_2D) {
 154       gles2->TexImage2D(texture_target,
 155                         0,
 156                         GL_RGBA,
 157                         size.width(),
 158                         size.height(),
 159                         0,
 160                         GL_RGBA,
 161                         GL_UNSIGNED_BYTE,
 162                         NULL);
 163     }
 164     gles2->GenMailboxCHROMIUM(texture_mailboxes->at(i).name);
 165     gles2->ProduceTextureCHROMIUM(texture_target,
 166                                   texture_mailboxes->at(i).name);
 167   }
 168
 169   // We need ShallowFlushCHROMIUM() here to order the command buffer commands
 170   // with respect to IPC to the GPU process, to guarantee that the decoder in
 171   // the GPU process can use these textures as soon as it receives IPC
 172   // notification of them.
 173   gles2->ShallowFlushCHROMIUM();
 174   DCHECK_EQ(gles2->GetError(), static_cast<GLenum>(GL_NO_ERROR));
 175   return true;
 176 }
 177
 178 void RendererGpuVideoAcceleratorFactories::DeleteTexture(uint32 texture_id) {
 179   DCHECK(task_runner_->BelongsToCurrentThread());
 180
 181   WebGraphicsContext3DCommandBufferImpl* context = GetContext3d();
 182   if (!context)
 183     return;
 184
 185   gpu::gles2::GLES2Implementation* gles2 = context->GetImplementation();
 186   gles2->DeleteTextures(1, &texture_id);
 187   DCHECK_EQ(gles2->GetError(), static_cast<GLenum>(GL_NO_ERROR));
 188 }
 189
 190 void RendererGpuVideoAcceleratorFactories::WaitSyncPoint(uint32 sync_point) {
 191   DCHECK(task_runner_->BelongsToCurrentThread());
 192
 193   WebGraphicsContext3DCommandBufferImpl* context = GetContext3d();
 194   if (!context)
 195     return;
 196
 197   gpu::gles2::GLES2Implementation* gles2 = context->GetImplementation();
 198   gles2->WaitSyncPointCHROMIUM(sync_point);
 199
 200   // Callers expect the WaitSyncPoint to affect the next IPCs. Make sure to
 201   // flush the command buffers to ensure that.
 202   gles2->ShallowFlushCHROMIUM();
 203 }
 204
 205 scoped_ptr<gfx::GpuMemoryBuffer>
 206 RendererGpuVideoAcceleratorFactories::AllocateGpuMemoryBuffer(
 207     const gfx::Size& size,
 208     gfx::BufferFormat format,
 209     gfx::BufferUsage usage) {
 210   DCHECK(task_runner_->BelongsToCurrentThread());
 211   scoped_ptr<gfx::GpuMemoryBuffer> buffer =
 212       gpu_memory_buffer_manager_->AllocateGpuMemoryBuffer(size, format, usage);
 213   return buffer.Pass();
 214 }
 215
 216 bool RendererGpuVideoAcceleratorFactories::IsTextureRGSupported() {
 217   DCHECK(task_runner_->BelongsToCurrentThread());
 218
 219   WebGraphicsContext3DCommandBufferImpl* context = GetContext3d();
 220   if (!context)
 221     return false;
 222   return context->GetImplementation()->capabilities().texture_rg;
 223 }
 224
 225 unsigned RendererGpuVideoAcceleratorFactories::ImageTextureTarget() {
 226   return image_texture_target_;
 227 }
 228
 229 gpu::gles2::GLES2Interface*
 230 RendererGpuVideoAcceleratorFactories::GetGLES2Interface() {
 231   DCHECK(task_runner_->BelongsToCurrentThread());
 232
 233   WebGraphicsContext3DCommandBufferImpl* context = GetContext3d();
 234   if (!context)
 235     return nullptr;
 236   gpu::gles2::GLES2Implementation* gles2 = context->GetImplementation();
 237   return gles2;
 238 }
 239
 240 scoped_ptr<base::SharedMemory>
 241 RendererGpuVideoAcceleratorFactories::CreateSharedMemory(size_t size) {
 242   DCHECK(task_runner_->BelongsToCurrentThread());
 243   scoped_ptr<base::SharedMemory> mem(
 244       ChildThreadImpl::AllocateSharedMemory(size, thread_safe_sender_.get()));
 245   if (mem && !mem->Map(size))
 246     return nullptr;
 247   return mem;
 248 }
 249
 250 scoped_refptr<base::SingleThreadTaskRunner>
 251 RendererGpuVideoAcceleratorFactories::GetTaskRunner() {
 252   return task_runner_;
 253 }
 254
 255 media::VideoDecodeAccelerator::SupportedProfiles
 256 RendererGpuVideoAcceleratorFactories::
 257     GetVideoDecodeAcceleratorSupportedProfiles() {
 258   return GpuVideoAcceleratorUtil::ConvertGpuToMediaDecodeProfiles(
 259       gpu_channel_host_->gpu_info()
 260           .video_decode_accelerator_supported_profiles);
 261 }
 262
 263 media::VideoEncodeAccelerator::SupportedProfiles
 264 RendererGpuVideoAcceleratorFactories::
 265     GetVideoEncodeAcceleratorSupportedProfiles() {
 266   return GpuVideoAcceleratorUtil::ConvertGpuToMediaEncodeProfiles(
 267       gpu_channel_host_->gpu_info()
 268           .video_encode_accelerator_supported_profiles);
 269 }
 270
 271 }  // namespace content