| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkImageCacherator_DEFINED |
| #define SkImageCacherator_DEFINED |
| |
| #include "SkImage.h" |
| #include "SkImageInfo.h" |
| |
| #if SK_SUPPORT_GPU |
| #include "GrTextureMaker.h" |
| #endif |
| |
| class GrCaps; |
| class GrContext; |
| class GrTextureProxy; |
| class GrUniqueKey; |
| class SkColorSpace; |
| |
| /* |
| * Interface used by GrImageTextureMaker to construct textures from instances of SkImage |
| * (specifically, SkImage_Lazy). |
| */ |
| class SkImageCacherator { |
| public: |
| virtual ~SkImageCacherator() {} |
| |
| virtual SkImageInfo buildCacheInfo() const = 0; |
| |
| #if SK_SUPPORT_GPU |
| // Returns the texture proxy. If the cacherator is generating the texture and wants to cache it, |
| // it should use the passed in key (if the key is valid). |
| // If "genType" argument equals AllowedTexGenType::kCheap and the texture is not trivial to |
| // construct then refOriginalTextureProxy should return nullptr (for example if texture is made |
| // by drawing into a render target). |
| virtual sk_sp<GrTextureProxy> lockTextureProxy(GrContext*, const GrUniqueKey& key, |
| SkImage::CachingHint, bool willBeMipped, |
| SkColorSpace* dstColorSpace, |
| GrTextureMaker::AllowedTexGenType genType) = 0; |
| |
| // Returns the color space of the texture that would be returned if you called lockTexture. |
| // Separate code path to allow querying of the color space for textures that cached (even |
| // externally). |
| virtual sk_sp<SkColorSpace> getColorSpace(GrContext*, SkColorSpace* dstColorSpace) = 0; |
| virtual void makeCacheKeyFromOrigKey(const GrUniqueKey& origKey, GrUniqueKey* cacheKey) = 0; |
| #endif |
| }; |
| |
| #endif |