Merge 217276 "Add media::VideoEncodeAccelerator with WebRTC inte..."

content/renderer/media/renderer_gpu_video_decoder_factories.cc

Index: content/renderer/media/renderer_gpu_video_decoder_factories.cc
===================================================================
--- content/renderer/media/renderer_gpu_video_decoder_factories.cc	(revision 217687)
+++ content/renderer/media/renderer_gpu_video_decoder_factories.cc	(working copy)
@@ -1,338 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/renderer/media/renderer_gpu_video_decoder_factories.h"
-
-#include <GLES2/gl2.h>
-#include <GLES2/gl2ext.h>
-
-#include "base/bind.h"
-#include "content/child/child_thread.h"
-#include "content/common/gpu/client/gpu_channel_host.h"
-#include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
-#include "gpu/command_buffer/client/gles2_implementation.h"
-#include "gpu/ipc/command_buffer_proxy.h"
-#include "third_party/skia/include/core/SkPixelRef.h"
-
-namespace content {
-
-RendererGpuVideoDecoderFactories::~RendererGpuVideoDecoderFactories() {}
-RendererGpuVideoDecoderFactories::RendererGpuVideoDecoderFactories(
-    GpuChannelHost* gpu_channel_host,
-    const scoped_refptr<base::MessageLoopProxy>& message_loop,
-    WebGraphicsContext3DCommandBufferImpl* context)
-    : message_loop_(message_loop),
-      main_message_loop_(base::MessageLoopProxy::current()),
-      gpu_channel_host_(gpu_channel_host),
-      aborted_waiter_(true, false),
-      message_loop_async_waiter_(false, false),
-      render_thread_async_waiter_(false, false) {
-  if (message_loop_->BelongsToCurrentThread()) {
-    AsyncGetContext(context);
-    message_loop_async_waiter_.Reset();
-    return;
-  }
-  // Wait for the context to be acquired.
-  message_loop_->PostTask(FROM_HERE, base::Bind(
-      &RendererGpuVideoDecoderFactories::AsyncGetContext,
-      // Unretained to avoid ref/deref'ing |*this|, which is not yet stored in a
-      // scoped_refptr.  Safe because the Wait() below keeps us alive until this
-      // task completes.
-      base::Unretained(this),
-      // OK to pass raw because the pointee is only deleted on the compositor
-      // thread, and only as the result of a PostTask from the render thread
-      // which can only happen after this function returns, so our PostTask will
-      // run first.
-      context));
-  message_loop_async_waiter_.Wait();
-}
-
-RendererGpuVideoDecoderFactories::RendererGpuVideoDecoderFactories()
-    : aborted_waiter_(true, false),
-      message_loop_async_waiter_(false, false),
-      render_thread_async_waiter_(false, false) {}
-
-void RendererGpuVideoDecoderFactories::AsyncGetContext(
-    WebGraphicsContext3DCommandBufferImpl* context) {
-  context_ = context->AsWeakPtr();
-  if (context_.get()) {
-    if (context_->makeContextCurrent()) {
-      // Called once per media player, but is a no-op after the first one in
-      // each renderer.
-      context_->insertEventMarkerEXT("GpuVDAContext3D");
-    }
-  }
-  message_loop_async_waiter_.Signal();
-}
-
-media::VideoDecodeAccelerator*
-RendererGpuVideoDecoderFactories::CreateVideoDecodeAccelerator(
-    media::VideoCodecProfile profile,
-    media::VideoDecodeAccelerator::Client* client) {
-  if (message_loop_->BelongsToCurrentThread()) {
-    AsyncCreateVideoDecodeAccelerator(profile, client);
-    message_loop_async_waiter_.Reset();
-    return vda_.release();
-  }
-  // The VDA is returned in the vda_ member variable by the
-  // AsyncCreateVideoDecodeAccelerator() function.
-  message_loop_->PostTask(FROM_HERE, base::Bind(
-      &RendererGpuVideoDecoderFactories::AsyncCreateVideoDecodeAccelerator,
-      this, profile, client));
-
-  base::WaitableEvent* objects[] = {&aborted_waiter_,
-                                    &message_loop_async_waiter_};
-  if (base::WaitableEvent::WaitMany(objects, arraysize(objects)) == 0) {
-    // If we are aborting and the VDA is created by the
-    // AsyncCreateVideoDecodeAccelerator() function later we need to ensure
-    // that it is destroyed on the same thread.
-    message_loop_->PostTask(FROM_HERE, base::Bind(
-        &RendererGpuVideoDecoderFactories::AsyncDestroyVideoDecodeAccelerator,
-        this));
-    return NULL;
-  }
-  return vda_.release();
-}
-
-void RendererGpuVideoDecoderFactories::AsyncCreateVideoDecodeAccelerator(
-      media::VideoCodecProfile profile,
-      media::VideoDecodeAccelerator::Client* client) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
-
-  if (context_.get() && context_->GetCommandBufferProxy()) {
-    vda_ = gpu_channel_host_->CreateVideoDecoder(
-        context_->GetCommandBufferProxy()->GetRouteID(), profile, client);
-  }
-  message_loop_async_waiter_.Signal();
-}
-
-uint32 RendererGpuVideoDecoderFactories::CreateTextures(
-    int32 count, const gfx::Size& size,
-    std::vector<uint32>* texture_ids,
-    std::vector<gpu::Mailbox>* texture_mailboxes,
-    uint32 texture_target) {
-  uint32 sync_point = 0;
-
-  if (message_loop_->BelongsToCurrentThread()) {
-    AsyncCreateTextures(count, size, texture_target, &sync_point);
-    texture_ids->swap(created_textures_);
-    texture_mailboxes->swap(created_texture_mailboxes_);
-    message_loop_async_waiter_.Reset();
-    return sync_point;
-  }
-  message_loop_->PostTask(FROM_HERE, base::Bind(
-      &RendererGpuVideoDecoderFactories::AsyncCreateTextures, this,
-      count, size, texture_target, &sync_point));
-
-  base::WaitableEvent* objects[] = {&aborted_waiter_,
-                                    &message_loop_async_waiter_};
-  if (base::WaitableEvent::WaitMany(objects, arraysize(objects)) == 0)
-    return 0;
-  texture_ids->swap(created_textures_);
-  texture_mailboxes->swap(created_texture_mailboxes_);
-  return sync_point;
-}
-
-void RendererGpuVideoDecoderFactories::AsyncCreateTextures(
-    int32 count, const gfx::Size& size, uint32 texture_target,
-    uint32* sync_point) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
-  DCHECK(texture_target);
-
-  if (!context_.get()) {
-    message_loop_async_waiter_.Signal();
-    return;
-  }
-  gpu::gles2::GLES2Implementation* gles2 = context_->GetImplementation();
-  created_textures_.resize(count);
-  created_texture_mailboxes_.resize(count);
-  gles2->GenTextures(count, &created_textures_[0]);
-  for (int i = 0; i < count; ++i) {
-    gles2->ActiveTexture(GL_TEXTURE0);
-    uint32 texture_id = created_textures_[i];
-    gles2->BindTexture(texture_target, texture_id);
-    gles2->TexParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-    gles2->TexParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    gles2->TexParameteri(texture_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-    gles2->TexParameteri(texture_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-    if (texture_target == GL_TEXTURE_2D) {
-      gles2->TexImage2D(texture_target, 0, GL_RGBA, size.width(), size.height(),
-                        0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
-    }
-    gles2->GenMailboxCHROMIUM(created_texture_mailboxes_[i].name);
-    gles2->ProduceTextureCHROMIUM(texture_target,
-                                  created_texture_mailboxes_[i].name);
-  }
-
-  // We need a glFlush here to guarantee the decoder (in the GPU process) can
-  // use the texture ids we return here.  Since textures are expected to be
-  // reused, this should not be unacceptably expensive.
-  gles2->Flush();
-  DCHECK_EQ(gles2->GetError(), static_cast<GLenum>(GL_NO_ERROR));
-
-  *sync_point = gles2->InsertSyncPointCHROMIUM();
-  message_loop_async_waiter_.Signal();
-}
-
-void RendererGpuVideoDecoderFactories::DeleteTexture(uint32 texture_id) {
-  if (message_loop_->BelongsToCurrentThread()) {
-    AsyncDeleteTexture(texture_id);
-    return;
-  }
-  message_loop_->PostTask(FROM_HERE, base::Bind(
-      &RendererGpuVideoDecoderFactories::AsyncDeleteTexture, this, texture_id));
-}
-
-void RendererGpuVideoDecoderFactories::AsyncDeleteTexture(uint32 texture_id) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
-  if (!context_.get())
-    return;
-
-  gpu::gles2::GLES2Implementation* gles2 = context_->GetImplementation();
-  gles2->DeleteTextures(1, &texture_id);
-  DCHECK_EQ(gles2->GetError(), static_cast<GLenum>(GL_NO_ERROR));
-}
-
-void RendererGpuVideoDecoderFactories::WaitSyncPoint(uint32 sync_point) {
-  if (message_loop_->BelongsToCurrentThread()) {
-    AsyncWaitSyncPoint(sync_point);
-    message_loop_async_waiter_.Reset();
-    return;
-  }
-
-  message_loop_->PostTask(FROM_HERE, base::Bind(
-      &RendererGpuVideoDecoderFactories::AsyncWaitSyncPoint,
-      this,
-      sync_point));
-  base::WaitableEvent* objects[] = {&aborted_waiter_,
-                                    &message_loop_async_waiter_};
-  base::WaitableEvent::WaitMany(objects, arraysize(objects));
-}
-
-void RendererGpuVideoDecoderFactories::AsyncWaitSyncPoint(uint32 sync_point) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
-  if (!context_) {
-    message_loop_async_waiter_.Signal();
-    return;
-  }
-
-  gpu::gles2::GLES2Implementation* gles2 = context_->GetImplementation();
-  gles2->WaitSyncPointCHROMIUM(sync_point);
-  message_loop_async_waiter_.Signal();
-}
-
-void RendererGpuVideoDecoderFactories::ReadPixels(
-    uint32 texture_id, uint32 texture_target, const gfx::Size& size,
-    const SkBitmap& pixels) {
-  // SkBitmaps use the SkPixelRef object to refcount the underlying pixels.
-  // Multiple SkBitmaps can share a SkPixelRef instance. We use this to
-  // ensure that the underlying pixels in the SkBitmap passed in remain valid
-  // until the AsyncReadPixels() call completes.
-  read_pixels_bitmap_.setPixelRef(pixels.pixelRef());
-
-  if (!message_loop_->BelongsToCurrentThread()) {
-    message_loop_->PostTask(FROM_HERE, base::Bind(
-        &RendererGpuVideoDecoderFactories::AsyncReadPixels, this,
-        texture_id, texture_target, size));
-    base::WaitableEvent* objects[] = {&aborted_waiter_,
-                                      &message_loop_async_waiter_};
-    if (base::WaitableEvent::WaitMany(objects, arraysize(objects)) == 0)
-      return;
-  } else {
-    AsyncReadPixels(texture_id, texture_target, size);
-    message_loop_async_waiter_.Reset();
-  }
-  read_pixels_bitmap_.setPixelRef(NULL);
-}
-
-void RendererGpuVideoDecoderFactories::AsyncReadPixels(
-    uint32 texture_id, uint32 texture_target, const gfx::Size& size) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
-  if (!context_.get()) {
-    message_loop_async_waiter_.Signal();
-    return;
-  }
-
-  gpu::gles2::GLES2Implementation* gles2 = context_->GetImplementation();
-
-  GLuint tmp_texture;
-  gles2->GenTextures(1, &tmp_texture);
-  gles2->BindTexture(texture_target, tmp_texture);
-  gles2->TexParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-  gles2->TexParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-  gles2->TexParameteri(texture_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-  gles2->TexParameteri(texture_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-  context_->copyTextureCHROMIUM(
-      texture_target, texture_id, tmp_texture, 0, GL_RGBA, GL_UNSIGNED_BYTE);
-
-  GLuint fb;
-  gles2->GenFramebuffers(1, &fb);
-  gles2->BindFramebuffer(GL_FRAMEBUFFER, fb);
-  gles2->FramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
-                              texture_target, tmp_texture, 0);
-  gles2->PixelStorei(GL_PACK_ALIGNMENT, 4);
-  gles2->ReadPixels(0, 0, size.width(), size.height(), GL_BGRA_EXT,
-      GL_UNSIGNED_BYTE, read_pixels_bitmap_.pixelRef()->pixels());
-  gles2->DeleteFramebuffers(1, &fb);
-  gles2->DeleteTextures(1, &tmp_texture);
-  DCHECK_EQ(gles2->GetError(), static_cast<GLenum>(GL_NO_ERROR));
-  message_loop_async_waiter_.Signal();
-}
-
-base::SharedMemory* RendererGpuVideoDecoderFactories::CreateSharedMemory(
-    size_t size) {
-  if (main_message_loop_->BelongsToCurrentThread()) {
-    return ChildThread::current()->AllocateSharedMemory(size);
-  }
-  main_message_loop_->PostTask(FROM_HERE, base::Bind(
-      &RendererGpuVideoDecoderFactories::AsyncCreateSharedMemory, this,
-      size));
-
-  base::WaitableEvent* objects[] = {&aborted_waiter_,
-                                    &render_thread_async_waiter_};
-  if (base::WaitableEvent::WaitMany(objects, arraysize(objects)) == 0)
-    return NULL;
-  return shared_memory_segment_.release();
-}
-
-void RendererGpuVideoDecoderFactories::AsyncCreateSharedMemory(size_t size) {
-  DCHECK_EQ(base::MessageLoop::current(),
-            ChildThread::current()->message_loop());
-
-  shared_memory_segment_.reset(
-      ChildThread::current()->AllocateSharedMemory(size));
-  render_thread_async_waiter_.Signal();
-}
-
-scoped_refptr<base::MessageLoopProxy>
-RendererGpuVideoDecoderFactories::GetMessageLoop() {
-  return message_loop_;
-}
-
-void RendererGpuVideoDecoderFactories::Abort() {
-  aborted_waiter_.Signal();
-}
-
-bool RendererGpuVideoDecoderFactories::IsAborted() {
-  return aborted_waiter_.IsSignaled();
-}
-
-scoped_refptr<media::GpuVideoDecoderFactories>
-RendererGpuVideoDecoderFactories::Clone() {
-  scoped_refptr<RendererGpuVideoDecoderFactories> factories =
-      new RendererGpuVideoDecoderFactories();
-  factories->message_loop_ = message_loop_;
-  factories->main_message_loop_ = main_message_loop_;
-  factories->gpu_channel_host_ = gpu_channel_host_;
-  factories->context_ = context_;
-  return factories;
-}
-
-void RendererGpuVideoDecoderFactories::AsyncDestroyVideoDecodeAccelerator() {
-  // OK to release because Destroy() will delete the VDA instance.
-  if (vda_)
-    vda_.release()->Destroy();
-}
-
-}  // namespace content