| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef TESTING_IMAGE_DIFF_IMAGE_DIFF_PNG_H_ |
| #define TESTING_IMAGE_DIFF_IMAGE_DIFF_PNG_H_ |
| |
| #include <stdlib.h> // for size_t. |
| |
| #include <vector> |
| |
| #include "third_party/base/span.h" |
| |
| namespace image_diff_png { |
| |
| // Decode a PNG into an RGBA pixel array, or BGRA pixel array if |
| // |reverse_byte_order| is set to true. |
| std::vector<uint8_t> DecodePNG(pdfium::span<const uint8_t> input, |
| bool reverse_byte_order, |
| int* width, |
| int* height); |
| |
| // Encode a BGR pixel array into a PNG. |
| std::vector<uint8_t> EncodeBGRPNG(pdfium::span<const uint8_t> input, |
| int width, |
| int height, |
| int row_byte_width); |
| |
| // Encode an RGBA pixel array into a PNG. |
| std::vector<uint8_t> EncodeRGBAPNG(pdfium::span<const uint8_t> input, |
| int width, |
| int height, |
| int row_byte_width); |
| |
| // Encode an BGRA pixel array into a PNG. |
| std::vector<uint8_t> EncodeBGRAPNG(pdfium::span<const uint8_t> input, |
| int width, |
| int height, |
| int row_byte_width, |
| bool discard_transparency); |
| |
| // Encode a grayscale pixel array into a PNG. |
| std::vector<uint8_t> EncodeGrayPNG(pdfium::span<const uint8_t> input, |
| int width, |
| int height, |
| int row_byte_width); |
| |
| } // namespace image_diff_png |
| |
| #endif // TESTING_IMAGE_DIFF_IMAGE_DIFF_PNG_H_ |