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