Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 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 SkColorSpaceXformer_DEFINED |
| 9 | #define SkColorSpaceXformer_DEFINED |
| 10 | |
Florin Malita | 39e0855 | 2017-07-06 14:16:18 -0400 | [diff] [blame] | 11 | #include "SkColor.h" |
| 12 | #include "SkRefCnt.h" |
| 13 | #include "SkTHash.h" |
| 14 | |
| 15 | class SkBitmap; |
| 16 | class SkColorFilter; |
| 17 | class SkColorSpace; |
| 18 | class SkColorSpaceXform; |
| 19 | class SkImage; |
| 20 | class SkImageFilter; |
| 21 | class SkPaint; |
| 22 | class SkShader; |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 23 | |
| 24 | class SkColorSpaceXformer : public SkNoncopyable { |
| 25 | public: |
| 26 | static std::unique_ptr<SkColorSpaceXformer> Make(sk_sp<SkColorSpace> dst); |
| 27 | |
Florin Malita | 39e0855 | 2017-07-06 14:16:18 -0400 | [diff] [blame] | 28 | ~SkColorSpaceXformer(); |
| 29 | |
Mike Klein | 2814d91 | 2017-05-10 12:35:51 -0400 | [diff] [blame] | 30 | sk_sp<SkImage> apply(const SkImage*); |
| 31 | sk_sp<SkImage> apply(const SkBitmap&); |
| 32 | sk_sp<SkColorFilter> apply(const SkColorFilter*); |
| 33 | sk_sp<SkImageFilter> apply(const SkImageFilter*); |
| 34 | sk_sp<SkShader> apply(const SkShader*); |
| 35 | SkPaint apply(const SkPaint&); |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 36 | void apply(SkColor dst[], const SkColor src[], int n); |
Matt Sarett | 6d72ed9 | 2017-04-10 16:35:33 -0400 | [diff] [blame] | 37 | SkColor apply(SkColor srgb); |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 38 | |
Matt Sarett | e22a6a2 | 2017-04-12 16:26:21 -0400 | [diff] [blame] | 39 | sk_sp<SkColorSpace> dst() const { return fDst; } |
| 40 | |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 41 | private: |
Florin Malita | 24a2ecf | 2017-07-06 15:12:12 -0400 | [diff] [blame] | 42 | SkColorSpaceXformer(sk_sp<SkColorSpace> dst, std::unique_ptr<SkColorSpaceXform> fromSRGB); |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 43 | |
Florin Malita | 5449aad | 2017-07-10 11:14:40 -0400 | [diff] [blame^] | 44 | template <typename T> |
| 45 | using Cache = SkTHashMap<sk_sp<T>, sk_sp<T>>; |
| 46 | |
| 47 | template <typename T> |
| 48 | sk_sp<T> cachedApply(const T*, Cache<T>*, sk_sp<T> (*)(const T*, SkColorSpaceXformer*)); |
| 49 | |
| 50 | void purgeCaches(); |
| 51 | |
| 52 | class AutoCachePurge; |
| 53 | |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 54 | sk_sp<SkColorSpace> fDst; |
| 55 | std::unique_ptr<SkColorSpaceXform> fFromSRGB; |
Florin Malita | 39e0855 | 2017-07-06 14:16:18 -0400 | [diff] [blame] | 56 | |
Florin Malita | 5449aad | 2017-07-10 11:14:40 -0400 | [diff] [blame^] | 57 | size_t fReentryCount; // tracks the number of nested apply() calls for cache purging. |
| 58 | |
| 59 | Cache<SkImage > fImageCache; |
| 60 | Cache<SkColorFilter> fColorFilterCache; |
| 61 | Cache<SkImageFilter> fImageFilterCache; |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 62 | }; |
| 63 | |
| 64 | #endif |