1 /* 2 * Copyright 2015 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 SkImage_Gpu_DEFINED 9 #define SkImage_Gpu_DEFINED 10 11 #include "SkAtomics.h" 12 #include "GrTexture.h" 13 #include "GrGpuResourcePriv.h" 14 #include "SkBitmap.h" 15 #include "SkImage_Base.h" 16 #include "SkImagePriv.h" 17 #include "SkSurface.h" 18 19 class SkImage_Gpu : public SkImage_Base { 20 public: 21 /** 22 * An "image" can be a subset/window into a larger texture, so we explicit take the 23 * width and height. 24 */ 25 SkImage_Gpu(int w, int h, uint32_t uniqueID, SkAlphaType, GrTexture*, SkBudgeted); 26 ~SkImage_Gpu() override; 27 28 void applyBudgetDecision() const { 29 GrTexture* tex = this->getTexture(); 30 SkASSERT(tex); 31 if (SkBudgeted::kYes == fBudgeted) { 32 tex->resourcePriv().makeBudgeted(); 33 } else { 34 tex->resourcePriv().makeUnbudgeted(); 35 } 36 } 37 38 bool getROPixels(SkBitmap*, CachingHint) const override; 39 GrTexture* asTextureRef(GrContext* ctx, const GrTextureParams& params) const override; 40 SkImage* onNewSubset(const SkIRect&) const override; 41 42 GrTexture* peekTexture() const override { return fTexture; } 43 bool isOpaque() const override; 44 bool onReadPixels(const SkImageInfo&, void* dstPixels, size_t dstRowBytes, 45 int srcX, int srcY, CachingHint) const override; 46 47 SkSurface* onNewSurface(const SkImageInfo& info) const override { 48 return SkSurface::NewRenderTarget(fTexture->getContext(), SkBudgeted::kNo, info); 49 } 50 51 bool asBitmapForImageFilters(SkBitmap* bitmap) const override; 52 53 private: 54 SkAutoTUnref<GrTexture> fTexture; 55 const SkAlphaType fAlphaType; 56 const SkBudgeted fBudgeted; 57 mutable SkAtomic<bool> fAddedRasterVersionToCache; 58 59 60 typedef SkImage_Base INHERITED; 61 }; 62 63 #endif 64
