// Copyright 2016 The Cobalt Authors. 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/surface_render_target.h"

#include "starboard/blitter.h"

#if SB_API_VERSION >= SB_ALL_RENDERERS_REQUIRED_VERSION || SB_HAS(BLITTER)

namespace cobalt {
namespace renderer {
namespace backend {

SurfaceRenderTargetBlitter::SurfaceRenderTargetBlitter(
    SbBlitterDevice device, const math::Size& dimensions) {
  surface_ = SbBlitterCreateRenderTargetSurface(device, dimensions.width(),
                                                dimensions.height(),
                                                kSbBlitterSurfaceFormatRGBA8);
  if (!SbBlitterIsSurfaceValid(surface_)) {
    LOG(ERROR) << "Error creating offscreen render target surface.";
    return;
  }

  render_target_ = SbBlitterGetRenderTargetFromSurface(surface_);
  if (!SbBlitterIsRenderTargetValid(render_target_)) {
    LOG(ERROR) << "Error acquiring a render target from the surface.";
    SbBlitterDestroySurface(surface_);
    surface_ = kSbBlitterInvalidSurface;
    return;
  }

  size_ = dimensions;
}

SurfaceRenderTargetBlitter::~SurfaceRenderTargetBlitter() {
  if (SbBlitterIsSurfaceValid(surface_)) {
    SbBlitterDestroySurface(surface_);
  }
}

const math::Size& SurfaceRenderTargetBlitter::GetSize() const { return size_; }

SbBlitterRenderTarget SurfaceRenderTargetBlitter::GetSbRenderTarget() const {
  return render_target_;
}

}  // namespace backend
}  // namespace renderer
}  // namespace cobalt

#endif  // #if SB_API_VERSION >= SB_ALL_RENDERERS_REQUIRED_VERSION ||
        // SB_HAS(BLITTER)