| OLD | NEW |
| (Empty) |
| 1 /* Copyright 2013 Google Inc. All Rights Reserved. | |
| 2 | |
| 3 Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 you may not use this file except in compliance with the License. | |
| 5 You may obtain a copy of the License at | |
| 6 | |
| 7 http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 | |
| 9 Unless required by applicable law or agreed to in writing, software | |
| 10 distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 See the License for the specific language governing permissions and | |
| 13 limitations under the License. | |
| 14 | |
| 15 Functions for streaming input and output. | |
| 16 */ | |
| 17 | |
| 18 #ifndef BROTLI_DEC_STREAMS_H_ | |
| 19 #define BROTLI_DEC_STREAMS_H_ | |
| 20 | |
| 21 #include <stdio.h> | |
| 22 #include "./types.h" | |
| 23 | |
| 24 #if defined(__cplusplus) || defined(c_plusplus) | |
| 25 extern "C" { | |
| 26 #endif | |
| 27 | |
| 28 /* Function pointer type used to read len bytes into buf. Returns the */ | |
| 29 /* number of bytes read or -1 on error. */ | |
| 30 typedef int (*BrotliInputFunction)(void* data, uint8_t* buf, size_t len); | |
| 31 | |
| 32 /* Input callback function with associated data. */ | |
| 33 typedef struct { | |
| 34 BrotliInputFunction cb_; | |
| 35 void* data_; | |
| 36 } BrotliInput; | |
| 37 | |
| 38 /* Reads len bytes into buf, using the in callback. */ | |
| 39 static BROTLI_INLINE int BrotliRead(BrotliInput in, uint8_t* buf, size_t len) { | |
| 40 return in.cb_(in.data_, buf, len); | |
| 41 } | |
| 42 | |
| 43 /* Function pointer type used to write len bytes into buf. Returns the */ | |
| 44 /* number of bytes written or -1 on error. */ | |
| 45 typedef int (*BrotliOutputFunction)(void* data, const uint8_t* buf, size_t len); | |
| 46 | |
| 47 /* Output callback function with associated data. */ | |
| 48 typedef struct { | |
| 49 BrotliOutputFunction cb_; | |
| 50 void* data_; | |
| 51 } BrotliOutput; | |
| 52 | |
| 53 /* Writes len bytes into buf, using the out callback. */ | |
| 54 static BROTLI_INLINE int BrotliWrite(BrotliOutput out, | |
| 55 const uint8_t* buf, size_t len) { | |
| 56 return out.cb_(out.data_, buf, len); | |
| 57 } | |
| 58 | |
| 59 /* Memory region with position. */ | |
| 60 typedef struct { | |
| 61 const uint8_t* buffer; | |
| 62 size_t length; | |
| 63 size_t pos; | |
| 64 } BrotliMemInput; | |
| 65 | |
| 66 /* Input callback where *data is a BrotliMemInput struct. */ | |
| 67 int BrotliMemInputFunction(void* data, uint8_t* buf, size_t count); | |
| 68 | |
| 69 /* Returns an input callback that wraps the given memory region. */ | |
| 70 BrotliInput BrotliInitMemInput(const uint8_t* buffer, size_t length, | |
| 71 BrotliMemInput* mem_input); | |
| 72 | |
| 73 /* Output buffer with position. */ | |
| 74 typedef struct { | |
| 75 uint8_t* buffer; | |
| 76 size_t length; | |
| 77 size_t pos; | |
| 78 } BrotliMemOutput; | |
| 79 | |
| 80 /* Output callback where *data is a BrotliMemOutput struct. */ | |
| 81 int BrotliMemOutputFunction(void* data, const uint8_t* buf, size_t count); | |
| 82 | |
| 83 /* Returns an output callback that wraps the given memory region. */ | |
| 84 BrotliOutput BrotliInitMemOutput(uint8_t* buffer, size_t length, | |
| 85 BrotliMemOutput* mem_output); | |
| 86 | |
| 87 /* Input callback that reads from standard input. */ | |
| 88 int BrotliStdinInputFunction(void* data, uint8_t* buf, size_t count); | |
| 89 BrotliInput BrotliStdinInput(); | |
| 90 | |
| 91 /* Output callback that writes to standard output. */ | |
| 92 int BrotliStdoutOutputFunction(void* data, const uint8_t* buf, size_t count); | |
| 93 BrotliOutput BrotliStdoutOutput(); | |
| 94 | |
| 95 /* Input callback that reads from a file. */ | |
| 96 int BrotliFileInputFunction(void* data, uint8_t* buf, size_t count); | |
| 97 BrotliInput BrotliFileInput(FILE* f); | |
| 98 | |
| 99 /* Output callback that writes to a file. */ | |
| 100 int BrotliFileOutputFunction(void* data, const uint8_t* buf, size_t count); | |
| 101 BrotliOutput BrotliFileOutput(FILE* f); | |
| 102 | |
| 103 #if defined(__cplusplus) || defined(c_plusplus) | |
| 104 } /* extern "C" */ | |
| 105 #endif | |
| 106 | |
| 107 #endif /* BROTLI_DEC_STREAMS_H_ */ | |
| OLD | NEW |