1 /* 2 * Copyright 2021 Google LLC 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef skgpu_graphite_BackendTexture_DEFINED 9 #define skgpu_graphite_BackendTexture_DEFINED 10 11 #include "include/core/SkRefCnt.h" 12 #include "include/core/SkSize.h" 13 #include "include/gpu/graphite/GraphiteTypes.h" 14 #include "include/gpu/graphite/TextureInfo.h" 15 #include "include/private/base/SkAnySubclass.h" 16 17 namespace skgpu::graphite { 18 19 class BackendTextureData; 20 struct VulkanTextureInfo; 21 22 class SK_API BackendTexture { 23 public: 24 BackendTexture(); 25 BackendTexture(const BackendTexture&); 26 27 ~BackendTexture(); 28 29 BackendTexture& operator=(const BackendTexture&); 30 31 bool operator==(const BackendTexture&) const; 32 bool operator!=(const BackendTexture& that) const { return !(*this == that); } 33 isValid()34 bool isValid() const { return fInfo.isValid(); } backend()35 BackendApi backend() const { return fInfo.backend(); } 36 dimensions()37 SkISize dimensions() const { return fDimensions; } 38 info()39 const TextureInfo& info() const { return fInfo; } 40 41 private: 42 friend class BackendTextureData; 43 friend class BackendTexturePriv; 44 45 // Size determined by looking at the BackendTextureData subclasses, then guessing-and-checking. 46 // Compiler will complain if this is too small - in that case, just increase the number. 47 inline constexpr static size_t kMaxSubclassSize = 72; 48 using AnyBackendTextureData = SkAnySubclass<BackendTextureData, kMaxSubclassSize>; 49 50 template <typename SomeBackendTextureData> BackendTexture(SkISize dimensions,TextureInfo info,const SomeBackendTextureData & textureData)51 BackendTexture(SkISize dimensions, TextureInfo info, const SomeBackendTextureData& textureData) 52 : fDimensions(dimensions), fInfo(info) { 53 fTextureData.emplace<SomeBackendTextureData>(textureData); 54 } 55 56 SkISize fDimensions; 57 TextureInfo fInfo; 58 AnyBackendTextureData fTextureData; 59 }; 60 61 } // namespace skgpu::graphite 62 63 #endif // skgpu_graphite_BackendTexture_DEFINED 64 65