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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef skdiff_utils_DEFINED | 8 #ifndef skdiff_utils_DEFINED |
9 #define skdiff_utils_DEFINED | 9 #define skdiff_utils_DEFINED |
10 | 10 |
11 #include "skdiff.h" | 11 #include "skdiff.h" |
12 #include "SkImageDecoder.h" | |
13 | 12 |
14 class SkBitmap; | 13 class SkBitmap; |
15 class SkData; | 14 class SkData; |
16 class SkString; | 15 class SkString; |
17 | 16 |
18 /** Returns true if the two buffers passed in are both non-nullptr, | 17 /** Returns true if the two buffers passed in are both non-nullptr, |
19 * have the same length, and contain exactly the same byte values. | 18 * have the same length, and contain exactly the same byte values. |
20 */ | 19 */ |
21 bool are_buffers_equal(SkData* skdata1, SkData* skdata2); | 20 bool are_buffers_equal(SkData* skdata1, SkData* skdata2); |
22 | 21 |
23 /** Reads the file at the given path and returns its complete contents as an | 22 /** Reads the file at the given path and returns its complete contents as an |
24 * SkData object (or returns nullptr on error). | 23 * SkData object (or returns nullptr on error). |
25 */ | 24 */ |
26 SkData* read_file(const char* file_path); | 25 SkData* read_file(const char* file_path); |
27 | 26 |
28 /** Decodes the fileBits into the resource.fBitmap. Returns false on failure. */ | 27 /** Decodes the fileBits into the resource.fBitmap. Returns false on failure. */ |
29 bool get_bitmap(SkData* fileBits, DiffResource& resource, SkImageDecoder::Mode m
ode); | 28 bool get_bitmap(SkData* fileBits, DiffResource& resource, bool sizeOnly); |
30 | 29 |
31 /** Writes the bitmap as a PNG to the path specified. */ | 30 /** Writes the bitmap as a PNG to the path specified. */ |
32 bool write_bitmap(const SkString& path, const SkBitmap& bitmap); | 31 bool write_bitmap(const SkString& path, const SkBitmap& bitmap); |
33 | 32 |
34 /** Given an image filename, returns the name of the file containing | 33 /** Given an image filename, returns the name of the file containing |
35 * the associated difference image. | 34 * the associated difference image. |
36 */ | 35 */ |
37 SkString filename_to_diff_filename(const SkString& filename); | 36 SkString filename_to_diff_filename(const SkString& filename); |
38 | 37 |
39 /** Given an image filename, returns the name of the file containing | 38 /** Given an image filename, returns the name of the file containing |
40 * the "white" difference image. | 39 * the "white" difference image. |
41 */ | 40 */ |
42 SkString filename_to_white_filename(const SkString& filename); | 41 SkString filename_to_white_filename(const SkString& filename); |
43 | 42 |
44 /** Calls compute_diff and handles the difference and white diff resources. | 43 /** Calls compute_diff and handles the difference and white diff resources. |
45 * If !outputDir.isEmpty(), writes out difference and white images. | 44 * If !outputDir.isEmpty(), writes out difference and white images. |
46 */ | 45 */ |
47 void create_and_write_diff_image(DiffRecord* drp, | 46 void create_and_write_diff_image(DiffRecord* drp, |
48 DiffMetricProc dmp, | 47 DiffMetricProc dmp, |
49 const int colorThreshold, | 48 const int colorThreshold, |
50 const SkString& outputDir, | 49 const SkString& outputDir, |
51 const SkString& filename); | 50 const SkString& filename); |
52 | 51 |
53 #endif | 52 #endif |
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