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// Copyright 2016 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 "gpu/ipc/service/pass_through_image_transport_surface.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "build/build_config.h"
#include "ui/gfx/vsync_provider.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_switches.h"
namespace gpu {
PassThroughImageTransportSurface::PassThroughImageTransportSurface(
base::WeakPtr<ImageTransportSurfaceDelegate> delegate,
gl::GLSurface* surface)
: GLSurfaceAdapter(surface),
delegate_(delegate),
did_set_swap_interval_(false),
weak_ptr_factory_(this) {}
bool PassThroughImageTransportSurface::Initialize(
gl::GLSurfaceFormat format) {
// The surface is assumed to have already been initialized.
delegate_->SetLatencyInfoCallback(
base::Bind(&PassThroughImageTransportSurface::SetLatencyInfo,
base::Unretained(this)));
return true;
}
void PassThroughImageTransportSurface::Destroy() {
GLSurfaceAdapter::Destroy();
}
gfx::SwapResult PassThroughImageTransportSurface::SwapBuffers() {
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info =
StartSwapBuffers();
gfx::SwapResult result = gl::GLSurfaceAdapter::SwapBuffers();
FinishSwapBuffers(std::move(latency_info), result);
return result;
}
void PassThroughImageTransportSurface::SwapBuffersAsync(
const GLSurface::SwapCompletionCallback& callback) {
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info =
StartSwapBuffers();
// We use WeakPtr here to avoid manual management of life time of an instance
// of this class. Callback will not be called once the instance of this class
// is destroyed. However, this also means that the callback can be run on
// the calling thread only.
gl::GLSurfaceAdapter::SwapBuffersAsync(base::Bind(
&PassThroughImageTransportSurface::FinishSwapBuffersAsync,
weak_ptr_factory_.GetWeakPtr(), base::Passed(&latency_info), callback));
}
gfx::SwapResult PassThroughImageTransportSurface::SwapBuffersWithDamage(
int x,
int y,
int width,
int height) {
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info =
StartSwapBuffers();
gfx::SwapResult result =
gl::GLSurfaceAdapter::SwapBuffersWithDamage(x, y, width, height);
FinishSwapBuffers(std::move(latency_info), result);
return result;
}
gfx::SwapResult PassThroughImageTransportSurface::PostSubBuffer(int x,
int y,
int width,
int height) {
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info =
StartSwapBuffers();
gfx::SwapResult result =
gl::GLSurfaceAdapter::PostSubBuffer(x, y, width, height);
FinishSwapBuffers(std::move(latency_info), result);
return result;
}
void PassThroughImageTransportSurface::PostSubBufferAsync(
int x,
int y,
int width,
int height,
const GLSurface::SwapCompletionCallback& callback) {
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info =
StartSwapBuffers();
gl::GLSurfaceAdapter::PostSubBufferAsync(
x, y, width, height,
base::Bind(&PassThroughImageTransportSurface::FinishSwapBuffersAsync,
weak_ptr_factory_.GetWeakPtr(), base::Passed(&latency_info),
callback));
}
gfx::SwapResult PassThroughImageTransportSurface::CommitOverlayPlanes() {
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info =
StartSwapBuffers();
gfx::SwapResult result = gl::GLSurfaceAdapter::CommitOverlayPlanes();
FinishSwapBuffers(std::move(latency_info), result);
return result;
}
void PassThroughImageTransportSurface::CommitOverlayPlanesAsync(
const GLSurface::SwapCompletionCallback& callback) {
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info =
StartSwapBuffers();
gl::GLSurfaceAdapter::CommitOverlayPlanesAsync(base::Bind(
&PassThroughImageTransportSurface::FinishSwapBuffersAsync,
weak_ptr_factory_.GetWeakPtr(), base::Passed(&latency_info), callback));
}
bool PassThroughImageTransportSurface::OnMakeCurrent(gl::GLContext* context) {
if (!did_set_swap_interval_) {
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableGpuVsync))
context->ForceSwapIntervalZero(true);
else
context->SetSwapInterval(1);
did_set_swap_interval_ = true;
}
return true;
}
PassThroughImageTransportSurface::~PassThroughImageTransportSurface() {
if (delegate_) {
delegate_->SetLatencyInfoCallback(
base::Callback<void(const std::vector<ui::LatencyInfo>&)>());
}
}
void PassThroughImageTransportSurface::SetLatencyInfo(
const std::vector<ui::LatencyInfo>& latency_info) {
latency_info_.insert(latency_info_.end(), latency_info.begin(),
latency_info.end());
}
void PassThroughImageTransportSurface::SendVSyncUpdateIfAvailable() {
gfx::VSyncProvider* vsync_provider = GetVSyncProvider();
if (vsync_provider) {
vsync_provider->GetVSyncParameters(base::Bind(
&ImageTransportSurfaceDelegate::UpdateVSyncParameters, delegate_));
}
}
std::unique_ptr<std::vector<ui::LatencyInfo>>
PassThroughImageTransportSurface::StartSwapBuffers() {
// GetVsyncValues before SwapBuffers to work around Mali driver bug:
// crbug.com/223558.
SendVSyncUpdateIfAvailable();
base::TimeTicks swap_time = base::TimeTicks::Now();
for (auto& latency : latency_info_) {
latency.AddLatencyNumberWithTimestamp(
ui::INPUT_EVENT_GPU_SWAP_BUFFER_COMPONENT, 0, 0, swap_time, 1);
}
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info(
new std::vector<ui::LatencyInfo>());
latency_info->swap(latency_info_);
return latency_info;
}
void PassThroughImageTransportSurface::FinishSwapBuffers(
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info,
gfx::SwapResult result) {
base::TimeTicks swap_ack_time = base::TimeTicks::Now();
for (auto& latency : *latency_info) {
latency.AddLatencyNumberWithTimestamp(
ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0,
swap_ack_time, 1);
}
if (delegate_) {
SwapBuffersCompleteParams params;
params.latency_info = std::move(*latency_info);
params.result = result;
delegate_->DidSwapBuffersComplete(std::move(params));
}
}
void PassThroughImageTransportSurface::FinishSwapBuffersAsync(
std::unique_ptr<std::vector<ui::LatencyInfo>> latency_info,
GLSurface::SwapCompletionCallback callback,
gfx::SwapResult result) {
FinishSwapBuffers(std::move(latency_info), result);
callback.Run(result);
}
} // namespace gpu
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