blob: e63a2e88941bbe37f5c6ce8688619a5d8befa04b [file] [log] [blame]
// 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 "services/ui/surfaces/display_output_surface_ozone.h"
#include <utility>
#include "base/bind.h"
#include "base/memory/ptr_util.h"
#include "cc/output/context_provider.h"
#include "cc/output/output_surface_client.h"
#include "cc/output/output_surface_frame.h"
#include "cc/scheduler/begin_frame_source.h"
#include "components/display_compositor/buffer_queue.h"
#include "gpu/command_buffer/client/context_support.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "ui/display/types/display_snapshot.h"
using display_compositor::BufferQueue;
namespace ui {
scoped_refptr<cc::InProcessContextProvider> context_provider,
gfx::AcceleratedWidget widget,
cc::SyntheticBeginFrameSource* synthetic_begin_frame_source,
gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
uint32_t target,
uint32_t internalformat)
: DisplayOutputSurface(context_provider, synthetic_begin_frame_source),
context_provider->ContextSupport()) {
capabilities_.uses_default_gl_framebuffer = false;
capabilities_.flipped_output_surface = true;
// Set |max_frames_pending| to 2 for surfaceless, which aligns scheduling
// more closely with the previous surfaced behavior.
// With a surface, swap buffer ack used to return early, before actually
// presenting the back buffer, enabling the browser compositor to run ahead.
// Surfaceless implementation acks at the time of actual buffer swap, which
// shifts the start of the new frame forward relative to the old
// implementation.
capabilities_.max_frames_pending = 2;
new BufferQueue(context_provider->ContextGL(), target, internalformat,
display::DisplaySnapshot::PrimaryFormat(), &gl_helper_,
gpu_memory_buffer_manager, widget));
DisplayOutputSurfaceOzone::~DisplayOutputSurfaceOzone() {
// TODO(rjkroege): Support cleanup.
void DisplayOutputSurfaceOzone::BindFramebuffer() {
// We call this on every frame that a value changes, but changing the size once
// we've allocated backing NativePixmapOzone instances will cause a DCHECK
// because Chrome never Reshape(s) after the first one from (0,0). NB: this
// implies that screen size changes need to be plumbed differently. In
// particular, we must create the native window in the size that the hardware
// reports.
void DisplayOutputSurfaceOzone::Reshape(const gfx::Size& size,
float device_scale_factor,
const gfx::ColorSpace& color_space,
bool has_alpha,
bool use_stencil) {
reshape_size_ = size;
DisplayOutputSurface::Reshape(size, device_scale_factor, color_space,
has_alpha, use_stencil);
buffer_queue_->Reshape(size, device_scale_factor, color_space, use_stencil);
void DisplayOutputSurfaceOzone::SwapBuffers(cc::OutputSurfaceFrame frame) {
// TODO(rjkroege): What if swap happens again before DidReceiveSwapBuffersAck
// then it would see the wrong size?
DCHECK(reshape_size_ == frame.size);
swap_size_ = reshape_size_;
buffer_queue_->SwapBuffers(frame.sub_buffer_rect ? *frame.sub_buffer_rect
: gfx::Rect(swap_size_));
uint32_t DisplayOutputSurfaceOzone::GetFramebufferCopyTextureFormat() {
return buffer_queue_->internal_format();
bool DisplayOutputSurfaceOzone::IsDisplayedAsOverlayPlane() const {
// TODO(rjkroege): implement remaining overlay functionality.
return true;
unsigned DisplayOutputSurfaceOzone::GetOverlayTextureId() const {
return buffer_queue_->current_texture_id();
void DisplayOutputSurfaceOzone::DidReceiveSwapBuffersAck(
gfx::SwapResult result) {
bool force_swap = false;
if (result == gfx::SwapResult::SWAP_NAK_RECREATE_BUFFERS) {
// Even through the swap failed, this is a fixable error so we can pretend
// it succeeded to the rest of the system.
result = gfx::SwapResult::SWAP_ACK;
force_swap = true;
if (force_swap)
} // namespace ui