| // Copyright 2016 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "cobalt/renderer/backend/blitter/display.h" |
| |
| #include "base/debug/trace_event.h" |
| #include "cobalt/base/polymorphic_downcast.h" |
| #include "cobalt/renderer/backend/blitter/render_target.h" |
| #include "cobalt/system_window/starboard/system_window.h" |
| |
| #if SB_HAS(BLITTER) |
| |
| namespace cobalt { |
| namespace renderer { |
| namespace backend { |
| |
| namespace { |
| |
| class DisplayRenderTargetBlitter : public RenderTargetBlitter { |
| public: |
| // The DisplayRenderTargetBlitter is constructed with a handle to a native |
| // window to use as the render target. |
| DisplayRenderTargetBlitter(SbBlitterDevice device, |
| system_window::SystemWindow* system_window); |
| |
| const math::Size& GetSize() OVERRIDE; |
| |
| SbBlitterRenderTarget GetSbRenderTarget() const OVERRIDE; |
| |
| void Flip() OVERRIDE; |
| |
| private: |
| ~DisplayRenderTargetBlitter() OVERRIDE; |
| |
| SbBlitterSwapChain swap_chain_; |
| SbBlitterRenderTarget render_target_; |
| |
| math::Size size_; |
| }; |
| |
| DisplayRenderTargetBlitter::DisplayRenderTargetBlitter( |
| SbBlitterDevice device, system_window::SystemWindow* system_window) { |
| SbWindow starboard_window = |
| base::polymorphic_downcast<system_window::SystemWindowStarboard*>( |
| system_window) |
| ->GetSbWindow(); |
| |
| swap_chain_ = SbBlitterCreateSwapChainFromWindow(device, starboard_window); |
| CHECK(SbBlitterIsSwapChainValid(swap_chain_)); |
| |
| render_target_ = SbBlitterGetRenderTargetFromSwapChain(swap_chain_); |
| CHECK(SbBlitterIsRenderTargetValid(render_target_)); |
| |
| SbWindowSize window_size; |
| SbWindowGetSize(starboard_window, &window_size); |
| size_.SetSize(window_size.width, window_size.height); |
| } |
| |
| const math::Size& DisplayRenderTargetBlitter::GetSize() { return size_; } |
| |
| DisplayRenderTargetBlitter::~DisplayRenderTargetBlitter() { |
| SbBlitterDestroySwapChain(swap_chain_); |
| } |
| |
| SbBlitterRenderTarget DisplayRenderTargetBlitter::GetSbRenderTarget() const { |
| return render_target_; |
| } |
| |
| void DisplayRenderTargetBlitter::Flip() { |
| TRACE_EVENT0("cobalt::renderer", "DisplayRenderTargetBlitter::Flip()"); |
| SbBlitterFlipSwapChain(swap_chain_); |
| } |
| |
| } // namespace |
| |
| DisplayBlitter::DisplayBlitter(SbBlitterDevice device, |
| system_window::SystemWindow* system_window) { |
| // A display effectively just hosts a DisplayRenderTargetBlitter. |
| render_target_ = new DisplayRenderTargetBlitter(device, system_window); |
| } |
| |
| scoped_refptr<RenderTarget> DisplayBlitter::GetRenderTarget() { |
| return render_target_; |
| } |
| |
| } // namespace backend |
| } // namespace renderer |
| } // namespace cobalt |
| |
| #endif // #if SB_HAS(BLITTER) |