1 /* 2 * Copyright 2012 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 skdiff_utils_DEFINED 9 #define skdiff_utils_DEFINED 10 11 #include "skdiff.h" 12 #include "SkImageDecoder.h" 13 14 class SkBitmap; 15 class SkData; 16 class SkString; 17 18 /** Returns true if the two buffers passed in are both non-NULL, 19 * have the same length, and contain exactly the same byte values. 20 */ 21 bool are_buffers_equal(SkData* skdata1, SkData* skdata2); 22 23 /** Reads the file at the given path and returns its complete contents as an 24 * SkData object (or returns NULL on error). 25 */ 26 SkData* read_file(const char* file_path); 27 28 /** Decodes the fileBits into the resource.fBitmap. Returns false on failure. */ 29 bool get_bitmap(SkData* fileBits, DiffResource& resource, SkImageDecoder::Mode mode); 30 31 /** Writes the bitmap as a PNG to the path specified. */ 32 bool write_bitmap(const SkString& path, const SkBitmap& bitmap); 33 34 /** Given an image filename, returns the name of the file containing 35 * the associated difference image. 36 */ 37 SkString filename_to_diff_filename(const SkString& filename); 38 39 /** Given an image filename, returns the name of the file containing 40 * the "white" difference image. 41 */ 42 SkString filename_to_white_filename(const SkString& filename); 43 44 /** Calls compute_diff and handles the difference and white diff resources. 45 * If !outputDir.isEmpty(), writes out difference and white images. 46 */ 47 void create_and_write_diff_image(DiffRecord* drp, 48 DiffMetricProc dmp, 49 const int colorThreshold, 50 const SkString& outputDir, 51 const SkString& filename); 52 53 #endif 54
