Suppress -Wunused-function for pdfium's third-party libraries.
[pdfium.git] / samples / image_diff_png.h
1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef TOOLS_IMAGEDIFF_IMAGE_DIFF_PNG_H_
6 #define TOOLS_IMAGEDIFF_IMAGE_DIFF_PNG_H_
7
8 #include <stdlib.h>  // for size_t.
9
10 #include <vector>
11
12 namespace image_diff_png {
13
14 // Decode a PNG into an RGBA pixel array.
15 bool DecodePNG(const unsigned char* input,
16                size_t input_size,
17                std::vector<unsigned char>* output,
18                int* width,
19                int* height);
20
21 // Encode an RGBA pixel array into a PNG.
22 bool EncodeRGBAPNG(const unsigned char* input,
23                    int width,
24                    int height,
25                    int row_byte_width,
26                    std::vector<unsigned char>* output);
27
28 // Encode an BGRA pixel array into a PNG.
29 bool EncodeBGRAPNG(const unsigned char* input,
30                    int width,
31                    int height,
32                    int row_byte_width,
33                    bool discard_transparency,
34                    std::vector<unsigned char>* output);
35
36 }  // namespace image_diff_png
37
38 #endif  // TOOLS_IMAGEDIFF_IMAGE_DIFF_PNG_H_