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/*
* 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.
*/
#ifndef COBALT_RENDERER_RASTERIZER_SKIA_SCRATCH_SURFACE_CACHE_H_
#define COBALT_RENDERER_RASTERIZER_SKIA_SCRATCH_SURFACE_CACHE_H_
#include <vector>
#include "base/callback.h"
#include "base/logging.h"
#include "cobalt/math/size.h"
#include "cobalt/renderer/rasterizer/common/scratch_surface_cache.h"
#include "third_party/skia/include/core/SkSurface.h"
namespace cobalt {
namespace renderer {
namespace rasterizer {
namespace skia {
class ScratchSurfaceCache {
public:
typedef base::Callback<SkSurface*(const math::Size&)> CreateSkSurfaceFunction;
ScratchSurfaceCache(CreateSkSurfaceFunction create_sk_surface_function,
int cache_capacity_in_bytes);
private:
class Delegate : public common::ScratchSurfaceCache::Delegate {
public:
explicit Delegate(CreateSkSurfaceFunction create_sk_surface_function);
common::ScratchSurfaceCache::Surface* CreateSurface(
const math::Size& size) OVERRIDE;
void DestroySurface(common::ScratchSurfaceCache::Surface* surface) OVERRIDE;
void PrepareForUse(common::ScratchSurfaceCache::Surface* surface,
const math::Size& area) OVERRIDE;
private:
CreateSkSurfaceFunction create_sk_surface_function_;
};
Delegate delegate_;
common::ScratchSurfaceCache cache_;
friend class CachedScratchSurface;
};
class CachedScratchSurface {
public:
CachedScratchSurface(ScratchSurfaceCache* cache, const math::Size& size)
: common_scratch_surface_(&cache->cache_, size) {}
// Returns a pointer to the Skia SkSurface.
SkSurface* GetSurface();
private:
common::CachedScratchSurface common_scratch_surface_;
};
} // namespace skia
} // namespace rasterizer
} // namespace renderer
} // namespace cobalt
#endif // COBALT_RENDERER_RASTERIZER_SKIA_SCRATCH_SURFACE_CACHE_H_