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      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 SkConvertPixels_DEFINED
      9 #define SkConvertPixels_DEFINED
     10 
     11 #include "SkImageInfo.h"
     12 #include "SkTemplates.h"
     13 
     14 class SkColorTable;
     15 
     16 void SkConvertPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBytes,
     17                      const SkImageInfo& srcInfo, const void* srcPixels, size_t srcRowBytes);
     18 
     19 static inline void SkRectMemcpy(void* dst, size_t dstRB, const void* src, size_t srcRB,
     20                                 size_t trimRowBytes, int rowCount) {
     21     SkASSERT(trimRowBytes <= dstRB);
     22     SkASSERT(trimRowBytes <= srcRB);
     23     if (trimRowBytes == dstRB && trimRowBytes == srcRB) {
     24         memcpy(dst, src, trimRowBytes * rowCount);
     25         return;
     26     }
     27 
     28     for (int i = 0; i < rowCount; ++i) {
     29         memcpy(dst, src, trimRowBytes);
     30         dst = SkTAddOffset<void>(dst, dstRB);
     31         src = SkTAddOffset<const void>(src, srcRB);
     32     }
     33 }
     34 
     35 #endif
     36