Revert of Refactor content/common/gpu into gpu/ipc/service

content/common/gpu/gpu_channel_manager.cc

Index: content/common/gpu/gpu_channel_manager.cc
diff --git a/content/common/gpu/gpu_channel_manager.cc b/content/common/gpu/gpu_channel_manager.cc
new file mode 100644
index 0000000000000000000000000000000000000000..299fbe20ff413cfd4760fae80a07b509851f77f4
--- /dev/null
+++ b/content/common/gpu/gpu_channel_manager.cc
@@ -0,0 +1,309 @@
+// 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/common/gpu/gpu_channel_manager.h"
+
+#include <algorithm>
+#include <utility>
+
+#include "base/bind.h"
+#include "base/location.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
+#include "build/build_config.h"
+#include "content/common/gpu/gpu_channel.h"
+#include "content/common/gpu/gpu_channel_manager_delegate.h"
+#include "content/common/gpu/gpu_memory_buffer_factory.h"
+#include "content/common/gpu/gpu_memory_manager.h"
+#include "gpu/command_buffer/common/sync_token.h"
+#include "gpu/command_buffer/common/value_state.h"
+#include "gpu/command_buffer/service/feature_info.h"
+#include "gpu/command_buffer/service/mailbox_manager.h"
+#include "gpu/command_buffer/service/memory_program_cache.h"
+#include "gpu/command_buffer/service/shader_translator_cache.h"
+#include "gpu/command_buffer/service/sync_point_manager.h"
+#include "gpu/ipc/common/gpu_messages.h"
+#include "ui/gl/gl_bindings.h"
+#include "ui/gl/gl_share_group.h"
+
+namespace content {
+
+namespace {
+#if defined(OS_ANDROID)
+// Amount of time we expect the GPU to stay powered up without being used.
+const int kMaxGpuIdleTimeMs = 40;
+// Maximum amount of time we keep pinging the GPU waiting for the client to
+// draw.
+const int kMaxKeepAliveTimeMs = 200;
+#endif
+
+}
+
+GpuChannelManager::GpuChannelManager(
+    const gpu::GpuPreferences& gpu_preferences,
+    GpuChannelManagerDelegate* delegate,
+    GpuWatchdog* watchdog,
+    base::SingleThreadTaskRunner* task_runner,
+    base::SingleThreadTaskRunner* io_task_runner,
+    base::WaitableEvent* shutdown_event,
+    gpu::SyncPointManager* sync_point_manager,
+    GpuMemoryBufferFactory* gpu_memory_buffer_factory)
+    : task_runner_(task_runner),
+      io_task_runner_(io_task_runner),
+      gpu_preferences_(gpu_preferences),
+      delegate_(delegate),
+      watchdog_(watchdog),
+      shutdown_event_(shutdown_event),
+      share_group_(new gfx::GLShareGroup),
+      mailbox_manager_(gpu::gles2::MailboxManager::Create(gpu_preferences)),
+      gpu_memory_manager_(this),
+      sync_point_manager_(sync_point_manager),
+      sync_point_client_waiter_(
+          sync_point_manager->CreateSyncPointClientWaiter()),
+      gpu_memory_buffer_factory_(gpu_memory_buffer_factory),
+      weak_factory_(this) {
+  DCHECK(task_runner);
+  DCHECK(io_task_runner);
+  if (gpu_preferences_.ui_prioritize_in_gpu_process)
+    preemption_flag_ = new gpu::PreemptionFlag;
+}
+
+GpuChannelManager::~GpuChannelManager() {
+  // Destroy channels before anything else because of dependencies.
+  gpu_channels_.clear();
+  if (default_offscreen_surface_.get()) {
+    default_offscreen_surface_->Destroy();
+    default_offscreen_surface_ = NULL;
+  }
+}
+
+gpu::gles2::ProgramCache* GpuChannelManager::program_cache() {
+  if (!program_cache_.get() &&
+      (gfx::g_driver_gl.ext.b_GL_ARB_get_program_binary ||
+       gfx::g_driver_gl.ext.b_GL_OES_get_program_binary) &&
+      !gpu_preferences_.disable_gpu_program_cache) {
+    program_cache_.reset(new gpu::gles2::MemoryProgramCache(
+          gpu_preferences_.gpu_program_cache_size,
+          gpu_preferences_.disable_gpu_shader_disk_cache));
+  }
+  return program_cache_.get();
+}
+
+gpu::gles2::ShaderTranslatorCache*
+GpuChannelManager::shader_translator_cache() {
+  if (!shader_translator_cache_.get()) {
+    shader_translator_cache_ =
+        new gpu::gles2::ShaderTranslatorCache(gpu_preferences_);
+  }
+  return shader_translator_cache_.get();
+}
+
+gpu::gles2::FramebufferCompletenessCache*
+GpuChannelManager::framebuffer_completeness_cache() {
+  if (!framebuffer_completeness_cache_.get())
+    framebuffer_completeness_cache_ =
+        new gpu::gles2::FramebufferCompletenessCache;
+  return framebuffer_completeness_cache_.get();
+}
+
+void GpuChannelManager::RemoveChannel(int client_id) {
+  delegate_->DidDestroyChannel(client_id);
+  gpu_channels_.erase(client_id);
+}
+
+#if defined(OS_MACOSX)
+void GpuChannelManager::AddBufferPresentedCallback(
+    int32_t surface_id,
+    const BufferPresentedCallback& callback) {
+  DCHECK(buffer_presented_callback_map_.find(surface_id) ==
+         buffer_presented_callback_map_.end());
+  buffer_presented_callback_map_[surface_id] = callback;
+}
+
+void GpuChannelManager::RemoveBufferPresentedCallback(int32_t surface_id) {
+  auto it = buffer_presented_callback_map_.find(surface_id);
+  DCHECK(it != buffer_presented_callback_map_.end());
+  buffer_presented_callback_map_.erase(it);
+}
+
+void GpuChannelManager::BufferPresented(int32_t surface_id,
+                                        const base::TimeTicks& vsync_timebase,
+                                        const base::TimeDelta& vsync_interval) {
+  auto it = buffer_presented_callback_map_.find(surface_id);
+  if (it != buffer_presented_callback_map_.end())
+    it->second.Run(surface_id, vsync_timebase, vsync_interval);
+}
+#endif
+
+GpuChannel* GpuChannelManager::LookupChannel(int32_t client_id) const {
+  const auto& it = gpu_channels_.find(client_id);
+  return it != gpu_channels_.end() ? it->second : nullptr;
+}
+
+scoped_ptr<GpuChannel> GpuChannelManager::CreateGpuChannel(
+    int client_id,
+    uint64_t client_tracing_id,
+    bool preempts,
+    bool allow_view_command_buffers,
+    bool allow_real_time_streams) {
+  return make_scoped_ptr(
+      new GpuChannel(this, sync_point_manager(), watchdog_, share_group(),
+                     mailbox_manager(), preempts ? preemption_flag() : nullptr,
+                     preempts ? nullptr : preemption_flag(), task_runner_.get(),
+                     io_task_runner_.get(), client_id, client_tracing_id,
+                     allow_view_command_buffers, allow_real_time_streams));
+}
+
+IPC::ChannelHandle GpuChannelManager::EstablishChannel(
+    int client_id,
+    uint64_t client_tracing_id,
+    bool preempts,
+    bool allow_view_command_buffers,
+    bool allow_real_time_streams) {
+  scoped_ptr<GpuChannel> channel(
+      CreateGpuChannel(client_id, client_tracing_id, preempts,
+                       allow_view_command_buffers, allow_real_time_streams));
+  IPC::ChannelHandle channel_handle = channel->Init(shutdown_event_);
+  gpu_channels_.set(client_id, std::move(channel));
+  return channel_handle;
+}
+
+void GpuChannelManager::InternalDestroyGpuMemoryBuffer(
+    gfx::GpuMemoryBufferId id,
+    int client_id) {
+  io_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&GpuChannelManager::InternalDestroyGpuMemoryBufferOnIO,
+                 base::Unretained(this), id, client_id));
+}
+
+void GpuChannelManager::InternalDestroyGpuMemoryBufferOnIO(
+    gfx::GpuMemoryBufferId id,
+    int client_id) {
+  gpu_memory_buffer_factory_->DestroyGpuMemoryBuffer(id, client_id);
+}
+
+void GpuChannelManager::DestroyGpuMemoryBuffer(
+    gfx::GpuMemoryBufferId id,
+    int client_id,
+    const gpu::SyncToken& sync_token) {
+  if (sync_token.HasData()) {
+    scoped_refptr<gpu::SyncPointClientState> release_state =
+        sync_point_manager()->GetSyncPointClientState(
+            sync_token.namespace_id(), sync_token.command_buffer_id());
+    if (release_state) {
+      sync_point_client_waiter_->WaitOutOfOrder(
+          release_state.get(), sync_token.release_count(),
+          base::Bind(&GpuChannelManager::InternalDestroyGpuMemoryBuffer,
+                     base::Unretained(this), id, client_id));
+      return;
+    }
+  }
+
+  // No sync token or invalid sync token, destroy immediately.
+  InternalDestroyGpuMemoryBuffer(id, client_id);
+}
+
+void GpuChannelManager::UpdateValueState(int client_id,
+                                         unsigned int target,
+                                         const gpu::ValueState& state) {
+  // Only pass updated state to the channel corresponding to the
+  // render_widget_host where the event originated.
+  auto it = gpu_channels_.find(client_id);
+  if (it != gpu_channels_.end())
+    it->second->HandleUpdateValueState(target, state);
+}
+
+void GpuChannelManager::PopulateShaderCache(const std::string& program_proto) {
+  if (program_cache())
+    program_cache()->LoadProgram(program_proto);
+}
+
+uint32_t GpuChannelManager::GetUnprocessedOrderNum() const {
+  uint32_t unprocessed_order_num = 0;
+  for (auto& kv : gpu_channels_) {
+    unprocessed_order_num =
+        std::max(unprocessed_order_num, kv.second->GetUnprocessedOrderNum());
+  }
+  return unprocessed_order_num;
+}
+
+uint32_t GpuChannelManager::GetProcessedOrderNum() const {
+  uint32_t processed_order_num = 0;
+  for (auto& kv : gpu_channels_) {
+    processed_order_num =
+        std::max(processed_order_num, kv.second->GetProcessedOrderNum());
+  }
+  return processed_order_num;
+}
+
+void GpuChannelManager::LoseAllContexts() {
+  for (auto& kv : gpu_channels_) {
+    kv.second->MarkAllContextsLost();
+  }
+  task_runner_->PostTask(FROM_HERE,
+                         base::Bind(&GpuChannelManager::DestroyAllChannels,
+                                    weak_factory_.GetWeakPtr()));
+}
+
+void GpuChannelManager::DestroyAllChannels() {
+  gpu_channels_.clear();
+}
+
+gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
+  if (!default_offscreen_surface_.get()) {
+    default_offscreen_surface_ =
+        gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size());
+  }
+  return default_offscreen_surface_.get();
+}
+
+#if defined(OS_ANDROID)
+void GpuChannelManager::DidAccessGpu() {
+  last_gpu_access_time_ = base::TimeTicks::Now();
+}
+
+void GpuChannelManager::WakeUpGpu() {
+  begin_wake_up_time_ = base::TimeTicks::Now();
+  ScheduleWakeUpGpu();
+}
+
+void GpuChannelManager::ScheduleWakeUpGpu() {
+  base::TimeTicks now = base::TimeTicks::Now();
+  TRACE_EVENT2("gpu", "GpuChannelManager::ScheduleWakeUp",
+               "idle_time", (now - last_gpu_access_time_).InMilliseconds(),
+               "keep_awake_time", (now - begin_wake_up_time_).InMilliseconds());
+  if (now - last_gpu_access_time_ <
+      base::TimeDelta::FromMilliseconds(kMaxGpuIdleTimeMs))
+    return;
+  if (now - begin_wake_up_time_ >
+      base::TimeDelta::FromMilliseconds(kMaxKeepAliveTimeMs))
+    return;
+
+  DoWakeUpGpu();
+
+  base::MessageLoop::current()->PostDelayedTask(
+      FROM_HERE, base::Bind(&GpuChannelManager::ScheduleWakeUpGpu,
+                            weak_factory_.GetWeakPtr()),
+      base::TimeDelta::FromMilliseconds(kMaxGpuIdleTimeMs));
+}
+
+void GpuChannelManager::DoWakeUpGpu() {
+  const GpuCommandBufferStub* stub = nullptr;
+  for (const auto& kv : gpu_channels_) {
+    const GpuChannel* channel = kv.second;
+    stub = channel->GetOneStub();
+    if (stub) {
+      DCHECK(stub->decoder());
+      break;
+    }
+  }
+  if (!stub || !stub->decoder()->MakeCurrent())
+    return;
+  glFinish();
+  DidAccessGpu();
+}
+#endif
+
+}  // namespace content