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