components/mus/surfaces/surfaces_output_surface.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/mus/surfaces/surfaces_output_surface.h"
   6
   7 #include "base/bind.h"
   8 #include "cc/output/compositor_frame.h"
   9 #include "cc/output/context_provider.h"
  10 #include "cc/output/output_surface_client.h"
  11 #include "gpu/command_buffer/client/context_support.h"
  12 #include "gpu/command_buffer/client/gles2_interface.h"
  13
  14 namespace mus {
  15
  16 DirectOutputSurface::DirectOutputSurface(
  17     const scoped_refptr<cc::ContextProvider>& context_provider)
  18     : cc::OutputSurface(context_provider), weak_ptr_factory_(this) {}
  19
  20 DirectOutputSurface::~DirectOutputSurface() {}
  21
  22 void DirectOutputSurface::SwapBuffers(cc::CompositorFrame* frame) {
  23   DCHECK(context_provider_.get());
  24   DCHECK(frame->gl_frame_data);
  25   if (frame->gl_frame_data->sub_buffer_rect ==
  26       gfx::Rect(frame->gl_frame_data->size)) {
  27     context_provider_->ContextSupport()->Swap();
  28   } else {
  29     context_provider_->ContextSupport()->PartialSwapBuffers(
  30         frame->gl_frame_data->sub_buffer_rect);
  31   }
  32   uint32_t sync_point =
  33       context_provider_->ContextGL()->InsertSyncPointCHROMIUM();
  34   context_provider_->ContextSupport()->SignalSyncPoint(
  35       sync_point, base::Bind(&OutputSurface::OnSwapBuffersComplete,
  36                              weak_ptr_factory_.GetWeakPtr()));
  37   client_->DidSwapBuffers();
  38 }
  39
  40 }  // namespace mus