25#include "grk_config_private.h"
30#define GROK_STREAM_STATUS_OUTPUT 0x1U
31#define GROK_STREAM_STATUS_INPUT 0x2U
32#define GROK_STREAM_STATUS_END 0x4U
33#define GROK_STREAM_STATUS_ERROR 0x8U
38 BufferedStream(uint8_t* buffer,
size_t buffer_size,
bool l_is_input);
59 size_t read(uint8_t* buffer,
size_t p_size);
77 size_t writeBytes(
const uint8_t* buffer,
size_t p_size);
91 bool skip(int64_t p_size);
110 bool seek(uint64_t offset)
override;
155 template<
typename TYPE>
156 bool write(TYPE value, uint8_t numBytes);
217template<
typename TYPE>
218void grk_write(uint8_t* buffer, TYPE value, uint32_t numBytes)
222 assert(numBytes <=
sizeof(TYPE));
223#if defined(GROK_BIG_ENDIAN)
224 const uint8_t* dataPtr = ((
const uint8_t*)&value) +
sizeof(TYPE) - numBytes;
225 memcpy(buffer, dataPtr, numBytes);
227 const uint8_t* dataPtr = ((
const uint8_t*)&value) + (size_t)(numBytes - 1);
228 for(uint32_t i = 0; i < numBytes; ++i)
229 *(buffer++) = *(dataPtr--);
233template<
typename TYPE>
236 grk_write<TYPE>(buffer, value,
sizeof(TYPE));
239template<
typename TYPE>
240void grk_read(
const uint8_t* buffer, TYPE* value, uint32_t numBytes)
242 assert(numBytes > 0 && numBytes <=
sizeof(TYPE));
243#if defined(GROK_BIG_ENDIAN)
244 auto dataPtr = ((uint8_t*)value);
246 memcpy(dataPtr +
sizeof(TYPE) - numBytes, buffer, numBytes);
248 auto dataPtr = ((uint8_t*)value) + numBytes - 1;
250 for(uint32_t i = 0; i < numBytes; ++i)
251 *(dataPtr--) = *(buffer++);
255template<
typename TYPE>
258 grk_read<TYPE>(buffer, value,
sizeof(TYPE));
Definition: GrkObjectWrapper.h:23
enum _GRK_CODEC_FORMAT GRK_CODEC_FORMAT
Supported JPEG 2000 formats.
size_t(* grk_stream_read_fn)(uint8_t *buffer, size_t numBytes, void *user_data)
Definition: grok_private.h:29
bool(* grk_stream_seek_fn)(uint64_t numBytes, void *user_data)
Definition: grok_private.h:38
void(* grk_stream_free_user_data_fn)(void *user_data)
Definition: grok_private.h:42
size_t(* grk_stream_write_fn)(const uint8_t *buffer, size_t numBytes, void *user_data)
Definition: grok_private.h:34
Copyright (C) 2016-2022 Grok Image Compression Inc.
Definition: ICacheable.h:20
void grk_read(const uint8_t *buffer, TYPE *value, uint32_t numBytes)
Definition: BufferedStream.h:240
size_t(* grk_stream_zero_copy_read_fn)(void **buffer, size_t numBytes, void *user_data)
Definition: MemStream.h:30
void grk_write(uint8_t *buffer, TYPE value, uint32_t numBytes)
Definition: BufferedStream.h:218
HWY_DLLEXPORT HWY_NORETURN void int const char * format
Definition: base.h:848
Grok ref-counted object.
Definition: grok.h:126
Definition: BufferedStream.h:36
bool supportsZeroCopy() override
Definition: BufferedStream.cpp:353
uint32_t status_
Stream status flags.
Definition: BufferedStream.h:198
grk_buf8 * buf_
Definition: BufferedStream.h:200
bool write24(uint32_t value)
Definition: BufferedStream.cpp:219
uint8_t * getZeroCopyPtr() override
Definition: BufferedStream.cpp:357
grk_object obj
Definition: BufferedStream.h:161
uint32_t getStatus(void) override
Definition: BufferedStream.cpp:68
bool write_skip(int64_t p_size)
Skip bytes in write stream.
Definition: BufferedStream.cpp:372
void setZeroCopyReadFunction(grk_stream_zero_copy_read_fn fn) override
Definition: BufferedStream.cpp:76
void setReadFunction(grk_stream_read_fn fn) override
Definition: BufferedStream.cpp:72
bool flush()
Flush stream to disk.
Definition: BufferedStream.cpp:319
grk_stream_seek_fn seek_fn_
Pointer to actual seek function (if available).
Definition: BufferedStream.h:194
grk_stream * getWrapper(void)
Definition: BufferedStream.cpp:488
bool writeShort(uint16_t value)
Definition: BufferedStream.cpp:215
bool hasSeek() override
Check if stream is seekable.
Definition: BufferedStream.cpp:473
size_t read_bytes_seekable_
Definition: BufferedStream.h:209
bool write64(uint64_t value)
Definition: BufferedStream.cpp:227
bool writeInt(uint32_t value)
Definition: BufferedStream.cpp:223
bool skip(int64_t p_size)
Skip bytes in stream.
Definition: BufferedStream.cpp:388
void invalidate_buffer()
Definition: BufferedStream.cpp:346
bool writeByte(uint8_t value)
Definition: BufferedStream.cpp:211
bool isMemStream()
Definition: BufferedStream.cpp:478
~BufferedStream()
Definition: BufferedStream.cpp:41
bool read_seek(uint64_t offset)
Absolute seek in read stream.
Definition: BufferedStream.cpp:396
bool read_skip(int64_t p_size)
Skip bytes in read stream.
Definition: BufferedStream.cpp:362
uint64_t stream_offset_
Definition: BufferedStream.h:212
void writeIncrement(size_t p_size)
Definition: BufferedStream.cpp:308
void * getUserData(void) override
Definition: BufferedStream.cpp:60
grk_stream_zero_copy_read_fn zero_copy_read_fn_
Pointer to actual zero copy read function (nullptr at initialization).
Definition: BufferedStream.h:186
GRK_CODEC_FORMAT getFormat(void) override
Definition: BufferedStream.cpp:51
void setSeekFunction(grk_stream_seek_fn fn) override
Definition: BufferedStream.cpp:84
bool write_seek(uint64_t offset)
Absolute seek in write stream.
Definition: BufferedStream.cpp:442
void setUserData(void *data, grk_stream_free_user_data_fn freeUserDataFun) override
Definition: BufferedStream.cpp:55
void setFormat(GRK_CODEC_FORMAT format) override
Definition: BufferedStream.cpp:47
size_t buffered_bytes_
Definition: BufferedStream.h:203
bool seek(uint64_t offset) override
Seek bytes from the stream (absolute)
Definition: BufferedStream.cpp:466
void setWriteFunction(grk_stream_write_fn fn) override
Definition: BufferedStream.cpp:80
size_t writeBytes(const uint8_t *buffer, size_t p_size)
Write bytes to stream (no correction for endian!).
Definition: BufferedStream.cpp:259
grk_stream_write_fn write_fn_
Pointer to actual write function (nullptr at initialization).
Definition: BufferedStream.h:190
void setUserDataLength(uint64_t len) override
Definition: BufferedStream.cpp:64
uint64_t user_data_length_
User data length.
Definition: BufferedStream.h:178
size_t read(uint8_t *buffer, size_t p_size)
Reads some bytes from the stream.
Definition: BufferedStream.cpp:89
bool write(TYPE value, uint8_t numBytes)
Definition: BufferedStream.cpp:232
void * user_data_
user data
Definition: BufferedStream.h:166
grk_stream_read_fn read_fn_
Pointer to actual read function (nullptr at initialization).
Definition: BufferedStream.h:182
uint64_t numBytesLeft(void)
Get the number of bytes left before end of stream.
Definition: BufferedStream.cpp:383
GRK_CODEC_FORMAT format_
Definition: BufferedStream.h:214
BufferedStream(uint8_t *buffer, size_t buffer_size, bool l_is_input)
Definition: BufferedStream.cpp:30
static IBufferedStream * getImpl(grk_stream *stream)
Definition: BufferedStream.cpp:483
grk_stream_free_user_data_fn free_user_data_fn_
Pointer to function to free user_data_ (nullptr at initialization) when destroying the stream.
Definition: BufferedStream.h:172
uint64_t tell(void)
Tells byte offset of stream (similar to ftell).
Definition: BufferedStream.cpp:379
Definition: IBufferedStream.h:20