android: Remove in-process video path

content/browser/android/in_process/context_provider_in_process.cc

-// Copyright (c) 2013 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/browser/android/in_process/context_provider_in_process.h"
-
-#include <stddef.h>
-#include <utility>
-
-#include "base/bind.h"
-#include "base/callback_helpers.h"
-#include "base/strings/stringprintf.h"
-#include "cc/output/managed_memory_policy.h"
-#include "gpu/blink/webgraphicscontext3d_in_process_command_buffer_impl.h"
-#include "gpu/command_buffer/client/gles2_implementation.h"
-#include "gpu/skia_bindings/grcontext_for_gles2_interface.h"
-#include "third_party/skia/include/gpu/GrContext.h"
-
-using gpu_blink::WebGraphicsContext3DInProcessCommandBufferImpl;
-
-namespace content {
-
-class ContextProviderInProcess::LostContextCallbackProxy
-    : public blink::WebGraphicsContext3D::WebGraphicsContextLostCallback {
- public:
-  explicit LostContextCallbackProxy(ContextProviderInProcess* provider)
-      : provider_(provider) {
-    provider_->context3d_->setContextLostCallback(this);
-  }
-
-  ~LostContextCallbackProxy() override {
-    provider_->context3d_->setContextLostCallback(nullptr);
-  }
-
-  void onContextLost() override {
-    provider_->OnLostContext();
-  }
-
- private:
-  ContextProviderInProcess* provider_;
-};
-
-// static
-scoped_refptr<ContextProviderInProcess> ContextProviderInProcess::Create(
-    std::unique_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d,
-    const std::string& debug_name) {
-  if (!context3d)
-    return nullptr;
-  return new ContextProviderInProcess(std::move(context3d), debug_name);
-}
-
-ContextProviderInProcess::ContextProviderInProcess(
-    std::unique_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d,
-    const std::string& debug_name)
-    : context3d_(std::move(context3d)), debug_name_(debug_name) {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-  DCHECK(context3d_);
-  context_thread_checker_.DetachFromThread();
-}
-
-ContextProviderInProcess::~ContextProviderInProcess() {
-  DCHECK(main_thread_checker_.CalledOnValidThread() ||
-         context_thread_checker_.CalledOnValidThread());
-}
-
-blink::WebGraphicsContext3D* ContextProviderInProcess::WebContext3D() {
-  DCHECK(lost_context_callback_proxy_);  // Is bound to thread.
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-
-  return context3d_.get();
-}
-
-bool ContextProviderInProcess::BindToCurrentThread() {
-  DCHECK(context3d_);
-
-  // This is called on the thread the context will be used.
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-
-  if (lost_context_callback_proxy_)
-    return true;
-
-  if (!context3d_->InitializeOnCurrentThread())
-    return false;
-
-  InitializeCapabilities();
-
-  const std::string unique_context_name =
-      base::StringPrintf("%s-%p", debug_name_.c_str(), context3d_.get());
-  ContextGL()->TraceBeginCHROMIUM("gpu_toplevel", unique_context_name.c_str());
-
-  lost_context_callback_proxy_.reset(new LostContextCallbackProxy(this));
-  return true;
-}
-
-void ContextProviderInProcess::DetachFromThread() {
-  context_thread_checker_.DetachFromThread();
-}
-
-void ContextProviderInProcess::InitializeCapabilities() {
-  capabilities_.gpu = context3d_->GetImplementation()->capabilities();
-
-  size_t mapped_memory_limit = context3d_->GetMappedMemoryLimit();
-  capabilities_.max_transfer_buffer_usage_bytes =
-      mapped_memory_limit ==
-              WebGraphicsContext3DInProcessCommandBufferImpl::kNoLimit
-          ? std::numeric_limits<size_t>::max()
-          : mapped_memory_limit;
-}
-
-cc::ContextProvider::Capabilities
-ContextProviderInProcess::ContextCapabilities() {
-  DCHECK(lost_context_callback_proxy_);  // Is bound to thread.
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-  return capabilities_;
-}
-
-::gpu::gles2::GLES2Interface* ContextProviderInProcess::ContextGL() {
-  DCHECK(context3d_);
-  DCHECK(lost_context_callback_proxy_);  // Is bound to thread.
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-
-  return context3d_->GetGLInterface();
-}
-
-::gpu::ContextSupport* ContextProviderInProcess::ContextSupport() {
-  DCHECK(context3d_);
-  if (!lost_context_callback_proxy_)
-    return NULL;  // Not bound to anything.
-
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-
-  return context3d_->GetContextSupport();
-}
-
-class GrContext* ContextProviderInProcess::GrContext() {
-  DCHECK(lost_context_callback_proxy_);  // Is bound to thread.
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-
-  if (gr_context_)
-    return gr_context_->get();
-
-  gr_context_.reset(new skia_bindings::GrContextForGLES2Interface(
-      context3d_->GetGLInterface()));
-  return gr_context_->get();
-}
-
-void ContextProviderInProcess::InvalidateGrContext(uint32_t state) {
-  DCHECK(lost_context_callback_proxy_);  // Is bound to thread.
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-
-  if (gr_context_)
-    return gr_context_->ResetContext(state);
-}
-
-void ContextProviderInProcess::SetupLock() {
-  context3d_->SetLock(&context_lock_);
-}
-
-base::Lock* ContextProviderInProcess::GetLock() {
-  return &context_lock_;
-}
-
-void ContextProviderInProcess::DeleteCachedResources() {
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-
-  if (gr_context_)
-    gr_context_->FreeGpuResources();
-}
-
-void ContextProviderInProcess::OnLostContext() {
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-  if (!lost_context_callback_.is_null())
-    lost_context_callback_.Run();
-  if (gr_context_)
-    gr_context_->OnLostContext();
-}
-
-void ContextProviderInProcess::SetLostContextCallback(
-    const LostContextCallback& lost_context_callback) {
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-  DCHECK(lost_context_callback_.is_null() ||
-         lost_context_callback.is_null());
-  lost_context_callback_ = lost_context_callback;
-}
-
-}  // namespace content