| Fairphone ODM | 25c12f5 | 2023-12-15 17:24:06 +0800 | [diff] [blame] | 1 | /* compression_utils_portable.h |
| 2 | * |
| 3 | * Copyright 2019 The Chromium Authors |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the Chromium source repository LICENSE file. |
| 6 | */ |
| 7 | #ifndef THIRD_PARTY_ZLIB_GOOGLE_COMPRESSION_UTILS_PORTABLE_H_ |
| 8 | #define THIRD_PARTY_ZLIB_GOOGLE_COMPRESSION_UTILS_PORTABLE_H_ |
| 9 | |
| 10 | #include <stdint.h> |
| 11 | |
| 12 | /* TODO(cavalcantii): remove support for Chromium ever building with a system |
| 13 | * zlib. |
| 14 | */ |
| 15 | #if defined(USE_SYSTEM_ZLIB) |
| 16 | #include <zlib.h> |
| 17 | /* AOSP build requires relative paths. */ |
| 18 | #else |
| 19 | #include "zlib.h" |
| 20 | #endif |
| 21 | |
| 22 | namespace zlib_internal { |
| 23 | |
| 24 | enum WrapperType { |
| 25 | ZLIB, |
| 26 | GZIP, |
| 27 | ZRAW, |
| 28 | }; |
| 29 | |
| 30 | uLongf GzipExpectedCompressedSize(uLongf input_size); |
| 31 | |
| 32 | uint32_t GetGzipUncompressedSize(const Bytef* compressed_data, size_t length); |
| 33 | |
| 34 | int GzipCompressHelper(Bytef* dest, |
| 35 | uLongf* dest_length, |
| 36 | const Bytef* source, |
| 37 | uLong source_length, |
| 38 | void* (*malloc_fn)(size_t), |
| 39 | void (*free_fn)(void*)); |
| 40 | |
| 41 | int CompressHelper(WrapperType wrapper_type, |
| 42 | Bytef* dest, |
| 43 | uLongf* dest_length, |
| 44 | const Bytef* source, |
| 45 | uLong source_length, |
| 46 | int compression_level, |
| 47 | void* (*malloc_fn)(size_t), |
| 48 | void (*free_fn)(void*)); |
| 49 | |
| 50 | int GzipUncompressHelper(Bytef* dest, |
| 51 | uLongf* dest_length, |
| 52 | const Bytef* source, |
| 53 | uLong source_length); |
| 54 | |
| 55 | int UncompressHelper(WrapperType wrapper_type, |
| 56 | Bytef* dest, |
| 57 | uLongf* dest_length, |
| 58 | const Bytef* source, |
| 59 | uLong source_length); |
| 60 | |
| 61 | } // namespace zlib_internal |
| 62 | |
| 63 | #endif // THIRD_PARTY_ZLIB_GOOGLE_COMPRESSION_UTILS_PORTABLE_H_ |