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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/ipc/service/raster_command_buffer_stub.h"
#include <memory>
#include <utility>
#include "base/memory/unsafe_shared_memory_region.h"
#include "base/memory/weak_ptr.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "gpu/command_buffer/common/constants.h"
#include "gpu/command_buffer/common/mailbox.h"
#include "gpu/command_buffer/service/gl_context_virtual.h"
#include "gpu/command_buffer/service/logger.h"
#include "gpu/command_buffer/service/memory_tracking.h"
#include "gpu/command_buffer/service/raster_decoder.h"
#include "gpu/command_buffer/service/scheduler.h"
#include "gpu/command_buffer/service/service_utils.h"
#include "gpu/command_buffer/service/transfer_buffer_manager.h"
#include "gpu/config/gpu_crash_keys.h"
#include "gpu/ipc/service/gpu_channel.h"
#include "gpu/ipc/service/gpu_channel_manager.h"
#include "gpu/ipc/service/gpu_channel_manager_delegate.h"
#include "gpu/ipc/service/gpu_memory_buffer_factory.h"
#include "gpu/ipc/service/gpu_watchdog_thread.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/gl_switches.h"
#include "ui/gl/init/gl_factory.h"
#if BUILDFLAG(IS_WIN)
#include "base/win/win_util.h"
#endif
namespace gpu {
RasterCommandBufferStub::RasterCommandBufferStub(
GpuChannel* channel,
const mojom::CreateCommandBufferParams& init_params,
CommandBufferId command_buffer_id,
SequenceId sequence_id,
int32_t stream_id,
int32_t route_id)
: CommandBufferStub(channel,
init_params,
command_buffer_id,
sequence_id,
stream_id,
route_id) {}
RasterCommandBufferStub::~RasterCommandBufferStub() {}
gpu::ContextResult RasterCommandBufferStub::Initialize(
CommandBufferStub* share_command_buffer_stub,
const mojom::CreateCommandBufferParams& init_params,
base::UnsafeSharedMemoryRegion shared_state_shm) {
TRACE_EVENT0("gpu", "RasterBufferStub::Initialize");
UpdateActiveUrl();
GpuChannelManager* manager = channel_->gpu_channel_manager();
DCHECK(manager);
if (share_command_buffer_stub) {
LOG(ERROR) << "Using a share group is not supported with RasterDecoder";
return ContextResult::kFatalFailure;
}
if (init_params.attribs.gpu_preference != gl::GpuPreference::kLowPower ||
init_params.attribs.context_type != CONTEXT_TYPE_OPENGLES2 ||
init_params.attribs.bind_generates_resource) {
LOG(ERROR) << "ContextResult::kFatalFailure: Incompatible creation attribs "
"used with RasterDecoder";
return ContextResult::kFatalFailure;
}
ContextResult result;
auto shared_context_state = manager->GetSharedContextState(&result);
if (!shared_context_state) {
LOG(ERROR) << "ContextResult::kFatalFailure: "
"Failed to create raster decoder state.";
DCHECK_NE(result, gpu::ContextResult::kSuccess);
return result;
}
DCHECK(shared_context_state->IsGLInitialized());
surface_ = shared_context_state->surface();
share_group_ = shared_context_state->share_group();
use_virtualized_gl_context_ =
shared_context_state->use_virtualized_gl_contexts();
memory_tracker_ = CreateMemoryTracker();
command_buffer_ =
std::make_unique<CommandBufferService>(this, memory_tracker_.get());
std::unique_ptr<raster::RasterDecoder> decoder(raster::RasterDecoder::Create(
this, command_buffer_.get(), manager->outputter(),
manager->gpu_feature_info(), manager->gpu_preferences(), memory_tracker_,
manager->shared_image_manager(), shared_context_state,
channel()->is_gpu_host()));
scoped_sync_point_client_state_ =
channel_->scheduler()->CreateSyncPointClientState(
sequence_id_, CommandBufferNamespace::GPU_IO, command_buffer_id_);
// TODO(sunnyps): Should this use ScopedCrashKey instead?
crash_keys::gpu_gl_context_is_virtual.Set(use_virtualized_gl_context_ ? "1"
: "0");
scoped_refptr<gl::GLContext> context = shared_context_state->context();
if (!shared_context_state->MakeCurrent(nullptr, false /* needs_gl */)) {
LOG(ERROR) << "ContextResult::kTransientFailure: "
"Failed to make context current.";
return gpu::ContextResult::kTransientFailure;
}
// Initialize the decoder with either the view or pbuffer GLContext.
result = decoder->Initialize(surface_, context, true /* offscreen */,
gpu::gles2::DisallowedFeatures(),
init_params.attribs);
if (result != gpu::ContextResult::kSuccess) {
DLOG(ERROR) << "Failed to initialize decoder.";
return result;
}
if (manager->gpu_preferences().enable_gpu_service_logging) {
decoder->SetLogCommands(true);
}
set_decoder_context(std::move(decoder));
const size_t kSharedStateSize = sizeof(CommandBufferSharedState);
base::WritableSharedMemoryMapping shared_state_mapping =
shared_state_shm.MapAt(0, kSharedStateSize);
if (!shared_state_mapping.IsValid()) {
LOG(ERROR) << "ContextResult::kFatalFailure: "
"Failed to map shared state buffer.";
return gpu::ContextResult::kFatalFailure;
}
command_buffer_->SetSharedStateBuffer(MakeBackingFromSharedMemory(
std::move(shared_state_shm), std::move(shared_state_mapping)));
if (!active_url_.is_empty())
manager->delegate()->DidCreateOffscreenContext(active_url_.url());
manager->delegate()->DidCreateContextSuccessfully();
initialized_ = true;
return gpu::ContextResult::kSuccess;
}
MemoryTracker* RasterCommandBufferStub::GetContextGroupMemoryTracker() const {
return nullptr;
}
base::WeakPtr<CommandBufferStub> RasterCommandBufferStub::AsWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
void RasterCommandBufferStub::SetActiveURL(GURL url) {
active_url_ = ContextUrl(std::move(url));
UpdateActiveUrl();
}
} // namespace gpu
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