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// Copyright 2014 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 "components/mus/gles2/command_buffer_impl.h"
#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "components/mus/gles2/command_buffer_driver.h"
#include "components/mus/gles2/command_buffer_impl_observer.h"
#include "components/mus/gles2/gpu_state.h"
#include "gpu/command_buffer/service/sync_point_manager.h"
namespace gles2 {
namespace {
void RunCallback(const mojo::Callback<void()>& callback) {
callback.Run();
}
} // namespace
class CommandBufferImpl::CommandBufferDriverClientImpl
: public CommandBufferDriver::Client {
public:
explicit CommandBufferDriverClientImpl(CommandBufferImpl* command_buffer)
: command_buffer_(command_buffer) {}
private:
void DidLoseContext() override { command_buffer_->DidLoseContext(); }
CommandBufferImpl* command_buffer_;
DISALLOW_COPY_AND_ASSIGN(CommandBufferDriverClientImpl);
};
CommandBufferImpl::CommandBufferImpl(
mojo::InterfaceRequest<mojo::CommandBuffer> request,
scoped_refptr<GpuState> gpu_state,
scoped_ptr<CommandBufferDriver> driver)
: gpu_state_(gpu_state),
driver_task_runner_(base::MessageLoop::current()->task_runner()),
driver_(driver.Pass()),
binding_(this),
observer_(nullptr),
weak_ptr_factory_(this) {
driver_->set_client(make_scoped_ptr(new CommandBufferDriverClientImpl(this)));
gpu_state_->control_task_runner()->PostTask(
FROM_HERE,
base::Bind(&CommandBufferImpl::BindToRequest,
weak_ptr_factory_.GetWeakPtr(), base::Passed(&request)));
}
void CommandBufferImpl::Initialize(
mojo::CommandBufferSyncClientPtr sync_client,
mojo::CommandBufferSyncPointClientPtr sync_point_client,
mojo::CommandBufferLostContextObserverPtr loss_observer,
mojo::ScopedSharedBufferHandle shared_state) {
sync_point_client_ = sync_point_client.Pass();
driver_task_runner_->PostTask(
FROM_HERE,
base::Bind(&CommandBufferDriver::Initialize,
base::Unretained(driver_.get()), base::Passed(&sync_client),
base::Passed(&loss_observer), base::Passed(&shared_state)));
}
void CommandBufferImpl::SetGetBuffer(int32_t buffer) {
driver_task_runner_->PostTask(
FROM_HERE, base::Bind(&CommandBufferDriver::SetGetBuffer,
base::Unretained(driver_.get()), buffer));
}
void CommandBufferImpl::Flush(int32_t put_offset) {
driver_task_runner_->PostTask(
FROM_HERE, base::Bind(&CommandBufferDriver::Flush,
base::Unretained(driver_.get()), put_offset));
}
void CommandBufferImpl::MakeProgress(int32_t last_get_offset) {
driver_task_runner_->PostTask(
FROM_HERE, base::Bind(&CommandBufferDriver::MakeProgress,
base::Unretained(driver_.get()), last_get_offset));
}
void CommandBufferImpl::RegisterTransferBuffer(
int32_t id,
mojo::ScopedSharedBufferHandle transfer_buffer,
uint32_t size) {
driver_task_runner_->PostTask(
FROM_HERE, base::Bind(&CommandBufferDriver::RegisterTransferBuffer,
base::Unretained(driver_.get()), id,
base::Passed(&transfer_buffer), size));
}
void CommandBufferImpl::DestroyTransferBuffer(int32_t id) {
driver_task_runner_->PostTask(
FROM_HERE, base::Bind(&CommandBufferDriver::DestroyTransferBuffer,
base::Unretained(driver_.get()), id));
}
void CommandBufferImpl::InsertSyncPoint(bool retire) {
uint32_t sync_point = gpu_state_->sync_point_manager()->GenerateSyncPoint();
sync_point_client_->DidInsertSyncPoint(sync_point);
if (retire) {
driver_task_runner_->PostTask(
FROM_HERE,
base::Bind(&gpu::SyncPointManager::RetireSyncPoint,
base::Unretained(gpu_state_->sync_point_manager()),
sync_point));
}
}
void CommandBufferImpl::RetireSyncPoint(uint32_t sync_point) {
driver_task_runner_->PostTask(
FROM_HERE, base::Bind(&gpu::SyncPointManager::RetireSyncPoint,
base::Unretained(gpu_state_->sync_point_manager()),
sync_point));
}
void CommandBufferImpl::Echo(const mojo::Callback<void()>& callback) {
driver_task_runner_->PostTaskAndReply(FROM_HERE, base::Bind(&base::DoNothing),
base::Bind(&RunCallback, callback));
}
void CommandBufferImpl::CreateImage(int32_t id,
mojo::ScopedHandle memory_handle,
int32 type,
mojo::SizePtr size,
int32_t format,
int32_t internal_format) {
driver_task_runner_->PostTask(
FROM_HERE, base::Bind(&CommandBufferDriver::CreateImage,
base::Unretained(driver_.get()), id,
base::Passed(&memory_handle), type,
base::Passed(&size), format, internal_format));
}
void CommandBufferImpl::DestroyImage(int32_t id) {
driver_task_runner_->PostTask(
FROM_HERE, base::Bind(&CommandBufferDriver::DestroyImage,
base::Unretained(driver_.get()), id));
}
CommandBufferImpl::~CommandBufferImpl() {
if (observer_)
observer_->OnCommandBufferImplDestroyed();
}
void CommandBufferImpl::BindToRequest(
mojo::InterfaceRequest<mojo::CommandBuffer> request) {
binding_.Bind(request.Pass());
binding_.set_connection_error_handler([this]() { OnConnectionError(); });
}
void CommandBufferImpl::OnConnectionError() {
// OnConnectionError() is called on the control thread |control_task_runner|.
// sync_point_client_ is assigned and accessed on the control thread and so it
// should also be destroyed on the control because InterfacePtrs are thread-
// hostile.
sync_point_client_.reset();
// Objects we own (such as CommandBufferDriver) need to be destroyed on the
// thread we were created on.
driver_task_runner_->DeleteSoon(FROM_HERE, this);
}
void CommandBufferImpl::DidLoseContext() {
OnConnectionError();
}
} // namespace gles2
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