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/*
* Copyright 2021 Google LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef skgpu_graphite_BackendTexture_DEFINED
#define skgpu_graphite_BackendTexture_DEFINED
#include "include/core/SkRefCnt.h"
#include "include/core/SkSize.h"
#include "include/gpu/graphite/GraphiteTypes.h"
#include "include/gpu/graphite/TextureInfo.h"
#include "include/private/base/SkAnySubclass.h"
namespace skgpu::graphite {
class BackendTextureData;
struct VulkanTextureInfo;
class SK_API BackendTexture {
public:
BackendTexture();
BackendTexture(const BackendTexture&);
~BackendTexture();
BackendTexture& operator=(const BackendTexture&);
bool operator==(const BackendTexture&) const;
bool operator!=(const BackendTexture& that) const { return !(*this == that); }
bool isValid() const { return fInfo.isValid(); }
BackendApi backend() const { return fInfo.backend(); }
SkISize dimensions() const { return fDimensions; }
const TextureInfo& info() const { return fInfo; }
private:
friend class BackendTextureData;
friend class BackendTexturePriv;
// Size determined by looking at the BackendTextureData subclasses, then guessing-and-checking.
// Compiler will complain if this is too small - in that case, just increase the number.
inline constexpr static size_t kMaxSubclassSize = 72;
using AnyBackendTextureData = SkAnySubclass<BackendTextureData, kMaxSubclassSize>;
template <typename SomeBackendTextureData>
BackendTexture(SkISize dimensions, TextureInfo info, const SomeBackendTextureData& textureData)
: fDimensions(dimensions), fInfo(info) {
fTextureData.emplace<SomeBackendTextureData>(textureData);
}
SkISize fDimensions;
TextureInfo fInfo;
AnyBackendTextureData fTextureData;
};
} // namespace skgpu::graphite
#endif // skgpu_graphite_BackendTexture_DEFINED
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