Line data    Source code

       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 "SkImageInfo.h"
      12             : 
      13             : /**
      14             :  *  Helper class to package and trim the parameters passed to writePixels()
      15             :  */
      16           0 : struct SkWritePixelsRec {
      17           0 :     SkWritePixelsRec(const SkImageInfo& info, const void* pixels, size_t rowBytes, int x, int y)
      18           0 :         : fPixels(pixels)
      19             :         , fRowBytes(rowBytes)
      20             :         , fInfo(info)
      21             :         , fX(x)
      22           0 :         , fY(y)
      23           0 :     {}
      24             : 
      25             :     const void* fPixels;
      26             :     size_t      fRowBytes;
      27             :     SkImageInfo fInfo;
      28             :     int         fX;
      29             :     int         fY;
      30             : 
      31             :     /*
      32             :      *  On true, may have modified its fields (except fRowBytes) to make it a legal subset
      33             :      *  of the specified dst width/height.
      34             :      *
      35             :      *  On false, leaves self unchanged, but indicates that it does not overlap dst, or
      36             :      *  is not valid (e.g. bad fInfo) for writePixels().
      37             :      */
      38             :     bool trim(int dstWidth, int dstHeight);
      39             : };
      40             : 
      41             : #endif