1 /* 2 * Copyright 2016 Google Inc. 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 GrImageTextureMaker_DEFINED 9 #define GrImageTextureMaker_DEFINED 10 11 #include "GrTextureMaker.h" 12 #include "SkImage.h" 13 14 class SkImage_Lazy; 15 class SkImage_GpuYUVA; 16 17 /** This class manages the conversion of generator-backed images to GrTextures. If the caching hint 18 is kAllow the image's ID is used for the cache key. */ 19 class GrImageTextureMaker : public GrTextureMaker { 20 public: 21 GrImageTextureMaker(GrRecordingContext* context, const SkImage* client, 22 SkImage::CachingHint chint, bool useDecal = false); 23 24 protected: 25 // TODO: consider overriding this, for the case where the underlying generator might be 26 // able to efficiently produce a "stretched" texture natively (e.g. picture-backed) 27 // GrTexture* generateTextureForParams(const CopyParams&) override; 28 sk_sp<GrTextureProxy> refOriginalTextureProxy(bool willBeMipped, 29 AllowedTexGenType onlyIfFast) override; 30 31 void makeCopyKey(const CopyParams& stretch, GrUniqueKey* paramsCopyKey) override; 32 void didCacheCopy(const GrUniqueKey& copyKey, uint32_t contextUniqueID) override {} 33 34 SkAlphaType alphaType() const override; 35 SkColorSpace* colorSpace() const override; 36 37 private: 38 const SkImage_Lazy* fImage; 39 GrUniqueKey fOriginalKey; 40 SkImage::CachingHint fCachingHint; 41 42 typedef GrTextureMaker INHERITED; 43 }; 44 45 /** This class manages the conversion of generator-backed YUVA images to GrTextures. */ 46 class GrYUVAImageTextureMaker : public GrTextureMaker { 47 public: 48 GrYUVAImageTextureMaker(GrContext* context, const SkImage* client, bool useDecal = false); 49 50 protected: 51 // TODO: consider overriding this, for the case where the underlying generator might be 52 // able to efficiently produce a "stretched" texture natively (e.g. picture-backed) 53 // GrTexture* generateTextureForParams(const CopyParams&) override; 54 sk_sp<GrTextureProxy> refOriginalTextureProxy(bool willBeMipped, 55 AllowedTexGenType onlyIfFast) override; 56 57 void makeCopyKey(const CopyParams& stretch, GrUniqueKey* paramsCopyKey) override; 58 void didCacheCopy(const GrUniqueKey& copyKey, uint32_t contextUniqueID) override {} 59 60 std::unique_ptr<GrFragmentProcessor> createFragmentProcessor( 61 const SkMatrix& textureMatrix, 62 const SkRect& constraintRect, 63 FilterConstraint filterConstraint, 64 bool coordsLimitedToConstraintRect, 65 const GrSamplerState::Filter* filterOrNullForBicubic) override; 66 67 SkAlphaType alphaType() const override; 68 SkColorSpace* colorSpace() const override; 69 70 private: 71 const SkImage_GpuYUVA* fImage; 72 GrUniqueKey fOriginalKey; 73 74 typedef GrTextureMaker INHERITED; 75 }; 76 77 78 #endif 79
