mojo/cc/output_surface_mojo.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 "mojo/cc/output_surface_mojo.h"
   6
   7 #include "base/bind.h"
   8 #include "cc/output/compositor_frame.h"
   9 #include "cc/output/compositor_frame_ack.h"
  10 #include "cc/output/output_surface_client.h"
  11 #include "components/mus/public/cpp/view_surface.h"
  12 #include "mojo/converters/surfaces/surfaces_type_converters.h"
  13
  14 namespace mojo {
  15
  16 OutputSurfaceMojo::OutputSurfaceMojo(
  17     const scoped_refptr<cc::ContextProvider>& context_provider,
  18     scoped_ptr<mus::ViewSurface> surface)
  19     : cc::OutputSurface(context_provider), surface_(surface.Pass()) {
  20   capabilities_.delegated_rendering = true;
  21   capabilities_.max_frames_pending = 1;
  22 }
  23
  24 OutputSurfaceMojo::~OutputSurfaceMojo() {
  25 }
  26
  27 bool OutputSurfaceMojo::BindToClient(cc::OutputSurfaceClient* client) {
  28   surface_->BindToThread();
  29   surface_->set_client(this);
  30   return cc::OutputSurface::BindToClient(client);
  31 }
  32
  33 void OutputSurfaceMojo::SwapBuffers(cc::CompositorFrame* frame) {
  34   // TODO(fsamuel, rjkroege): We should probably throttle compositor frames.
  35   surface_->SubmitCompositorFrame(mojo::CompositorFrame::From(*frame));
  36
  37   client_->DidSwapBuffers();
  38   client_->DidSwapBuffersComplete();
  39 }
  40
  41 void OutputSurfaceMojo::OnResourcesReturned(
  42     mus::ViewSurface* surface,
  43     mojo::Array<mojo::ReturnedResourcePtr> resources) {
  44   cc::CompositorFrameAck cfa;
  45   cfa.resources = resources.To<cc::ReturnedResourceArray>();
  46   ReclaimResources(&cfa);
  47 }
  48
  49 }  // namespace mojo