Mus: DirectOutputSurface* => DisplayOutputSurface*

services/ui/surfaces/direct_output_surface_ozone.cc

-// 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/direct_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 {
-
-DirectOutputSurfaceOzone::DirectOutputSurfaceOzone(
-    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)
-    : cc::OutputSurface(context_provider),
-      gl_helper_(context_provider->ContextGL(),
-                 context_provider->ContextSupport()),
-      synthetic_begin_frame_source_(synthetic_begin_frame_source),
-      weak_ptr_factory_(this) {
-  buffer_queue_.reset(
-      new BufferQueue(context_provider->ContextGL(), target, internalformat,
-                      ui::DisplaySnapshot::PrimaryFormat(), &gl_helper_,
-                      gpu_memory_buffer_manager, widget));
-
-  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;
-
-  buffer_queue_->Initialize();
-
-  context_provider->SetSwapBuffersCompletionCallback(
-      base::Bind(&DirectOutputSurfaceOzone::OnGpuSwapBuffersCompleted,
-                 weak_ptr_factory_.GetWeakPtr()));
-  context_provider->SetUpdateVSyncParametersCallback(
-      base::Bind(&DirectOutputSurfaceOzone::OnVSyncParametersUpdated,
-                 weak_ptr_factory_.GetWeakPtr()));
-}
-
-DirectOutputSurfaceOzone::~DirectOutputSurfaceOzone() {
-  // TODO(rjkroege): Support cleanup.
-}
-
-void DirectOutputSurfaceOzone::BindToClient(cc::OutputSurfaceClient* client) {
-  DCHECK(client);
-  DCHECK(!client_);
-  client_ = client;
-}
-
-void DirectOutputSurfaceOzone::EnsureBackbuffer() {}
-
-void DirectOutputSurfaceOzone::DiscardBackbuffer() {
-  context_provider()->ContextGL()->DiscardBackbufferCHROMIUM();
-}
-
-void DirectOutputSurfaceOzone::BindFramebuffer() {
-  DCHECK(buffer_queue_);
-  buffer_queue_->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 DirectOutputSurfaceOzone::Reshape(const gfx::Size& size,
-                                       float device_scale_factor,
-                                       const gfx::ColorSpace& color_space,
-                                       bool has_alpha) {
-  reshape_size_ = size;
-  context_provider()->ContextGL()->ResizeCHROMIUM(
-      size.width(), size.height(), device_scale_factor, has_alpha);
-  buffer_queue_->Reshape(size, device_scale_factor, color_space);
-}
-
-void DirectOutputSurfaceOzone::SwapBuffers(cc::OutputSurfaceFrame frame) {
-  DCHECK(buffer_queue_);
-
-  // TODO(rjkroege): What if swap happens again before OnGpuSwapBuffersCompleted
-  // then it would see the wrong size?
-  DCHECK(reshape_size_ == frame.size);
-  swap_size_ = reshape_size_;
-
-  buffer_queue_->SwapBuffers(frame.sub_buffer_rect);
-
-  // Code combining GpuBrowserCompositorOutputSurface + DirectOutputSurface
-  if (frame.sub_buffer_rect == gfx::Rect(frame.size)) {
-    context_provider_->ContextSupport()->Swap();
-  } else {
-    context_provider_->ContextSupport()->PartialSwapBuffers(
-        frame.sub_buffer_rect);
-  }
-}
-
-uint32_t DirectOutputSurfaceOzone::GetFramebufferCopyTextureFormat() {
-  return buffer_queue_->internal_format();
-}
-
-cc::OverlayCandidateValidator*
-DirectOutputSurfaceOzone::GetOverlayCandidateValidator() const {
-  return nullptr;
-}
-
-bool DirectOutputSurfaceOzone::IsDisplayedAsOverlayPlane() const {
-  // TODO(rjkroege): implement remaining overlay functionality.
-  return true;
-}
-
-unsigned DirectOutputSurfaceOzone::GetOverlayTextureId() const {
-  return buffer_queue_->current_texture_id();
-}
-
-bool DirectOutputSurfaceOzone::SurfaceIsSuspendForRecycle() const {
-  return false;
-}
-
-bool DirectOutputSurfaceOzone::HasExternalStencilTest() const {
-  return false;
-}
-
-void DirectOutputSurfaceOzone::ApplyExternalStencil() {}
-
-void DirectOutputSurfaceOzone::OnGpuSwapBuffersCompleted(
-    const std::vector<ui::LatencyInfo>& latency_info,
-    gfx::SwapResult result,
-    const gpu::GpuProcessHostedCALayerTreeParamsMac* params_mac) {
-  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;
-    buffer_queue_->RecreateBuffers();
-    force_swap = true;
-  }
-
-  buffer_queue_->PageFlipComplete();
-  client_->DidReceiveSwapBuffersAck();
-
-  if (force_swap)
-    client_->SetNeedsRedrawRect(gfx::Rect(swap_size_));
-}
-
-void DirectOutputSurfaceOzone::OnVSyncParametersUpdated(
-    base::TimeTicks timebase,
-    base::TimeDelta interval) {
-  // TODO(brianderson): We should not be receiving 0 intervals.
-  synthetic_begin_frame_source_->OnUpdateVSyncParameters(
-      timebase,
-      interval.is_zero() ? cc::BeginFrameArgs::DefaultInterval() : interval);
-}
-
-}  // namespace ui