1 /* 2 * Copyright 2022 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_TextureProxyView_DEFINED 9 #define skgpu_graphite_TextureProxyView_DEFINED 10 11 #include "include/core/SkRect.h" 12 #include "include/core/SkRefCnt.h" 13 #include "include/gpu/graphite/GraphiteTypes.h" 14 #include "src/gpu/Swizzle.h" 15 #include "src/gpu/graphite/TextureProxy.h" 16 17 enum class SkBackingFit; 18 19 namespace skgpu::graphite { 20 21 class Recorder; 22 23 class TextureProxyView { 24 public: 25 TextureProxyView() = default; 26 TextureProxyView(sk_sp<TextureProxy> proxy,Swizzle swizzle)27 TextureProxyView(sk_sp<TextureProxy> proxy, Swizzle swizzle) 28 : fProxy(std::move(proxy)), fSwizzle(swizzle) {} 29 TextureProxyView(sk_sp<TextureProxy> proxy,Swizzle swizzle,Origin origin)30 TextureProxyView(sk_sp<TextureProxy> proxy, Swizzle swizzle, Origin origin) 31 : fProxy(std::move(proxy)), fSwizzle(swizzle), fOrigin(origin) {} 32 33 // This entry point is used when we don't care about the swizzle and assume TopLeft origin. TextureProxyView(sk_sp<TextureProxy> proxy)34 explicit TextureProxyView(sk_sp<TextureProxy> proxy) 35 : fProxy(std::move(proxy)) {} 36 37 TextureProxyView(TextureProxyView&& view) = default; 38 TextureProxyView(const TextureProxyView&) = default; 39 40 explicit operator bool() const { return SkToBool(fProxy.get()); } 41 42 TextureProxyView& operator=(const TextureProxyView&) = default; 43 TextureProxyView& operator=(TextureProxyView&& view) = default; 44 45 bool operator==(const TextureProxyView& view) const { 46 return fProxy == view.fProxy && 47 fSwizzle == view.fSwizzle && 48 fOrigin == view.fOrigin; 49 } 50 bool operator!=(const TextureProxyView& other) const { return !(*this == other); } 51 width()52 int width() const { return this->proxy()->dimensions().width(); } height()53 int height() const { return this->proxy()->dimensions().height(); } dimensions()54 SkISize dimensions() const { return this->proxy()->dimensions(); } 55 mipmapped()56 skgpu::Mipmapped mipmapped() const { 57 if (const TextureProxy* proxy = this->proxy()) { 58 return proxy->mipmapped(); 59 } 60 return skgpu::Mipmapped::kNo; 61 } 62 proxy()63 TextureProxy* proxy() const { return fProxy.get(); } refProxy()64 sk_sp<TextureProxy> refProxy() const { return fProxy; } 65 swizzle()66 Swizzle swizzle() const { return fSwizzle; } origin()67 Origin origin() const { return fOrigin; } 68 concatSwizzle(Swizzle swizzle)69 void concatSwizzle(Swizzle swizzle) { 70 fSwizzle = skgpu::Swizzle::Concat(fSwizzle, swizzle); 71 } 72 73 // makeSwizzle returns a new view with 'swizzle' composed on to this view's existing swizzle makeSwizzle(Swizzle swizzle)74 TextureProxyView makeSwizzle(Swizzle swizzle) const & { 75 return {fProxy, Swizzle::Concat(fSwizzle, swizzle), fOrigin}; 76 } 77 makeSwizzle(Swizzle swizzle)78 TextureProxyView makeSwizzle(Swizzle swizzle) && { 79 return {std::move(fProxy), Swizzle::Concat(fSwizzle, swizzle), fOrigin}; 80 } 81 82 // resetSwizzle returns a new view that uses 'swizzle' and disregards this view's prior swizzle. replaceSwizzle(Swizzle swizzle)83 TextureProxyView replaceSwizzle(Swizzle swizzle) const { 84 return {fProxy, swizzle, fOrigin}; 85 } 86 reset()87 void reset() { 88 *this = {}; 89 } 90 91 // This does not reset the swizzle, so the View can still be used to access those 92 // properties associated with the detached proxy. detachProxy()93 sk_sp<TextureProxy> detachProxy() { 94 return std::move(fProxy); 95 } 96 97 private: 98 sk_sp<TextureProxy> fProxy; 99 Swizzle fSwizzle; 100 Origin fOrigin = Origin::kTopLeft; 101 }; 102 103 } // namespace skgpu::graphite 104 105 #endif // skgpu_graphite_TextureProxyView_DEFINED 106