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 SkWritePixelsRec_DEFINED 9 #define SkWritePixelsRec_DEFINED 10 11 #include "include/core/SkImageInfo.h" 12 #include "include/core/SkPixmap.h" 13 14 #include <cstddef> 15 16 /** 17 * Helper class to package and trim the parameters passed to writePixels() 18 */ 19 struct SkWritePixelsRec { SkWritePixelsRecSkWritePixelsRec20 SkWritePixelsRec(const SkImageInfo& info, const void* pixels, size_t rowBytes, int x, int y) 21 : fPixels(pixels) 22 , fRowBytes(rowBytes) 23 , fInfo(info) 24 , fX(x) 25 , fY(y) 26 {} 27 SkWritePixelsRecSkWritePixelsRec28 SkWritePixelsRec(const SkPixmap& pm, int x, int y) 29 : fPixels(pm.addr()) 30 , fRowBytes(pm.rowBytes()) 31 , fInfo(pm.info()) 32 , fX(x) 33 , fY(y) 34 {} 35 36 const void* fPixels; 37 size_t fRowBytes; 38 SkImageInfo fInfo; 39 int fX; 40 int fY; 41 42 /* 43 * On true, may have modified its fields (except fRowBytes) to make it a legal subset 44 * of the specified dst width/height. 45 * 46 * On false, leaves self unchanged, but indicates that it does not overlap dst, or 47 * is not valid (e.g. bad fInfo) for writePixels(). 48 */ 49 bool trim(int dstWidth, int dstHeight); 50 }; 51 52 #endif 53