mojo/cc/direct_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 "mojo/cc/direct_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 mojo {
  15
  16 DirectOutputSurface::DirectOutputSurface(
  17     const scoped_refptr<cc::ContextProvider>& context_provider)
  18     : cc::OutputSurface(context_provider), weak_ptr_factory_(this) {
  19 }
  20
  21 DirectOutputSurface::~DirectOutputSurface() {}
  22
  23 void DirectOutputSurface::SwapBuffers(cc::CompositorFrame* frame) {
  24   DCHECK(context_provider_.get());
  25   DCHECK(frame->gl_frame_data);
  26   if (frame->gl_frame_data->sub_buffer_rect ==
  27       gfx::Rect(frame->gl_frame_data->size)) {
  28     context_provider_->ContextSupport()->Swap();
  29   } else {
  30     context_provider_->ContextSupport()->PartialSwapBuffers(
  31         frame->gl_frame_data->sub_buffer_rect);
  32   }
  33   uint32_t sync_point =
  34       context_provider_->ContextGL()->InsertSyncPointCHROMIUM();
  35   context_provider_->ContextSupport()->SignalSyncPoint(
  36       sync_point,
  37       base::Bind(&OutputSurface::OnSwapBuffersComplete,
  38                  weak_ptr_factory_.GetWeakPtr()));
  39   client_->DidSwapBuffers();
  40 }
  41
  42 }  // namespace mojo