1 /* 2 * Copyright 2011 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 SkPixelInfo_DEFINED 9 #define SkPixelInfo_DEFINED 10 11 #include "SkImageInfo.h" 12 13 class SkColorTable; 14 15 struct SkPixelInfo { 16 SkColorType fColorType; 17 SkAlphaType fAlphaType; 18 size_t fRowBytes; 19 20 static bool CopyPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBytes, 21 const SkImageInfo& srcInfo, const void* srcPixels, size_t srcRowBytes, 22 SkColorTable* srcCTable = nullptr); 23 }; 24 25 struct SkDstPixelInfo : SkPixelInfo { 26 void* fPixels; 27 }; 28 29 struct SkSrcPixelInfo : SkPixelInfo { 30 const void* fPixels; 31 32 // Guaranteed to work even if src.fPixels and dst.fPixels are the same 33 // (but not if they overlap partially) 34 bool convertPixelsTo(SkDstPixelInfo* dst, int width, int height) const; 35 }; 36 37 static inline void SkRectMemcpy(void* dst, size_t dstRB, const void* src, size_t srcRB, 38 size_t bytesPerRow, int rowCount) { 39 SkASSERT(bytesPerRow <= srcRB); 40 SkASSERT(bytesPerRow <= dstRB); 41 for (int i = 0; i < rowCount; ++i) { 42 memcpy(dst, src, bytesPerRow); 43 dst = (char*)dst + dstRB; 44 src = (const char*)src + srcRB; 45 } 46 } 47 48 #endif 49
