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 SkImageFilterCacheKey_DEFINED 9 #define SkImageFilterCacheKey_DEFINED 10 11 struct SkImageFilter::Cache::Key { 12 Key(const uint32_t uniqueID, const SkMatrix& matrix, 13 const SkIRect& clipBounds, uint32_t srcGenID, const SkIRect& srcSubset) 14 : fUniqueID(uniqueID) 15 , fMatrix(matrix) 16 , fClipBounds(clipBounds) 17 , fSrcGenID(srcGenID) 18 , fSrcSubset(srcSubset) { 19 // Assert that Key is tightly-packed, since it is hashed. 20 static_assert(sizeof(Key) == sizeof(uint32_t) + sizeof(SkMatrix) + sizeof(SkIRect) + 21 sizeof(uint32_t) + 4 * sizeof(int32_t), 22 "image_filter_key_tight_packing"); 23 fMatrix.getType(); // force initialization of type, so hashes match 24 } 25 26 uint32_t fUniqueID; 27 SkMatrix fMatrix; 28 SkIRect fClipBounds; 29 uint32_t fSrcGenID; 30 SkIRect fSrcSubset; 31 32 bool operator==(const Key& other) const { 33 return fUniqueID == other.fUniqueID && 34 fMatrix == other.fMatrix && 35 fClipBounds == other.fClipBounds && 36 fSrcGenID == other.fSrcGenID && 37 fSrcSubset == other.fSrcSubset; 38 } 39 }; 40 41 #endif 42 43
