Move mus to //services/ui

components/mus/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 "components/mus/surfaces/direct_output_surface_ozone.h"
-
-#include <utility>
-
-#include "base/bind.h"
-#include "base/memory/ptr_util.h"
-#include "cc/output/compositor_frame.h"
-#include "cc/output/context_provider.h"
-#include "cc/output/output_surface_client.h"
-#include "cc/scheduler/begin_frame_source.h"
-#include "components/display_compositor/buffer_queue.h"
-#include "components/mus/common/gpu_service.h"
-#include "components/mus/common/mojo_gpu_memory_buffer_manager.h"
-#include "components/mus/gpu/mus_gpu_memory_buffer_manager.h"
-#include "components/mus/surfaces/surfaces_context_provider.h"
-#include "gpu/command_buffer/client/context_support.h"
-#include "gpu/command_buffer/client/gles2_interface.h"
-
-using display_compositor::BufferQueue;
-
-namespace mus {
-
-DirectOutputSurfaceOzone::DirectOutputSurfaceOzone(
-    scoped_refptr<SurfacesContextProvider> context_provider,
-    gfx::AcceleratedWidget widget,
-    cc::SyntheticBeginFrameSource* synthetic_begin_frame_source,
-    uint32_t target,
-    uint32_t internalformat)
-    : cc::OutputSurface(context_provider, nullptr, nullptr),
-      gl_helper_(context_provider->ContextGL(),
-                 context_provider->ContextSupport()),
-      synthetic_begin_frame_source_(synthetic_begin_frame_source),
-      weak_ptr_factory_(this) {
-  if (!GpuService::UseChromeGpuCommandBuffer()) {
-    ozone_gpu_memory_buffer_manager_.reset(new OzoneGpuMemoryBufferManager());
-    buffer_queue_.reset(new BufferQueue(
-        context_provider->ContextGL(), target, internalformat, &gl_helper_,
-        ozone_gpu_memory_buffer_manager_.get(), widget));
-  } else {
-    buffer_queue_.reset(new BufferQueue(
-        context_provider->ContextGL(), target, internalformat, &gl_helper_,
-        MusGpuMemoryBufferManager::current(), 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,
-                 base::Unretained(this)));
-}
-
-DirectOutputSurfaceOzone::~DirectOutputSurfaceOzone() {
-  // TODO(rjkroege): Support cleanup.
-}
-
-bool DirectOutputSurfaceOzone::IsDisplayedAsOverlayPlane() const {
-  // TODO(rjkroege): implement remaining overlay functionality.
-  return true;
-}
-
-unsigned DirectOutputSurfaceOzone::GetOverlayTextureId() const {
-  DCHECK(buffer_queue_);
-  return buffer_queue_->current_texture_id();
-}
-
-void DirectOutputSurfaceOzone::SwapBuffers(cc::CompositorFrame frame) {
-  DCHECK(buffer_queue_);
-  DCHECK(frame.gl_frame_data);
-
-  buffer_queue_->SwapBuffers(frame.gl_frame_data->sub_buffer_rect);
-
-  // Code combining GpuBrowserCompositorOutputSurface + DirectOutputSurface
-  if (frame.gl_frame_data->sub_buffer_rect ==
-      gfx::Rect(frame.gl_frame_data->size)) {
-    context_provider_->ContextSupport()->Swap();
-  } else {
-    context_provider_->ContextSupport()->PartialSwapBuffers(
-        frame.gl_frame_data->sub_buffer_rect);
-  }
-
-  gpu::gles2::GLES2Interface* gl = context_provider_->ContextGL();
-  const GLuint64 fence_sync = gl->InsertFenceSyncCHROMIUM();
-  gl->ShallowFlushCHROMIUM();
-
-  gpu::SyncToken sync_token;
-  gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, sync_token.GetData());
-
-  client_->DidSwapBuffers();
-}
-
-bool DirectOutputSurfaceOzone::BindToClient(cc::OutputSurfaceClient* client) {
-  if (!cc::OutputSurface::BindToClient(client))
-    return false;
-
-  if (capabilities_.uses_default_gl_framebuffer) {
-    capabilities_.flipped_output_surface =
-        context_provider()->ContextCapabilities().flips_vertically;
-  }
-  return true;
-}
-
-void DirectOutputSurfaceOzone::OnUpdateVSyncParametersFromGpu(
-    base::TimeTicks timebase,
-    base::TimeDelta interval) {
-  DCHECK(HasClient());
-  synthetic_begin_frame_source_->OnUpdateVSyncParameters(timebase, interval);
-}
-
-void DirectOutputSurfaceOzone::OnGpuSwapBuffersCompleted(
-    gfx::SwapResult result) {
-  DCHECK(buffer_queue_);
-  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();
-  OnSwapBuffersComplete();
-
-  if (force_swap)
-    client_->SetNeedsRedrawRect(gfx::Rect(SurfaceSize()));
-}
-
-void DirectOutputSurfaceOzone::BindFramebuffer() {
-  DCHECK(buffer_queue_);
-  buffer_queue_->BindFramebuffer();
-}
-
-uint32_t DirectOutputSurfaceOzone::GetFramebufferCopyTextureFormat() {
-  return buffer_queue_->internal_format();
-}
-
-// We call this on every frame 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 scale_factor,
-                                       const gfx::ColorSpace& color_space,
-                                       bool alpha) {
-  OutputSurface::Reshape(size, scale_factor, color_space, alpha);
-  DCHECK(buffer_queue_);
-  buffer_queue_->Reshape(SurfaceSize(), scale_factor);
-}
-
-}  // namespace mus