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add brotli 1.0.9

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alexey.lysiuk 2021-08-01 13:16:36 +03:00
parent 82243ffea7
commit 2220fb116c
10 changed files with 1198 additions and 0 deletions
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344
deps/brotli/include/brotli/decode.h vendored Normal file
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/* Copyright 2013 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/**
* @file
* API for Brotli decompression.
*/
#ifndef BROTLI_DEC_DECODE_H_
#define BROTLI_DEC_DECODE_H_
#include <brotli/port.h>
#include <brotli/types.h>
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
/**
* Opaque structure that holds decoder state.
*
* Allocated and initialized with ::BrotliDecoderCreateInstance.
* Cleaned up and deallocated with ::BrotliDecoderDestroyInstance.
*/
typedef struct BrotliDecoderStateStruct BrotliDecoderState;
/**
* Result type for ::BrotliDecoderDecompress and
* ::BrotliDecoderDecompressStream functions.
*/
typedef enum {
/** Decoding error, e.g. corrupted input or memory allocation problem. */
BROTLI_DECODER_RESULT_ERROR = 0,
/** Decoding successfully completed. */
BROTLI_DECODER_RESULT_SUCCESS = 1,
/** Partially done; should be called again with more input. */
BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT = 2,
/** Partially done; should be called again with more output. */
BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT = 3
} BrotliDecoderResult;
/**
* Template that evaluates items of ::BrotliDecoderErrorCode.
*
* Example: @code {.cpp}
* // Log Brotli error code.
* switch (brotliDecoderErrorCode) {
* #define CASE_(PREFIX, NAME, CODE) \
* case BROTLI_DECODER ## PREFIX ## NAME: \
* LOG(INFO) << "error code:" << #NAME; \
* break;
* #define NEWLINE_
* BROTLI_DECODER_ERROR_CODES_LIST(CASE_, NEWLINE_)
* #undef CASE_
* #undef NEWLINE_
* default: LOG(FATAL) << "unknown brotli error code";
* }
* @endcode
*/
#define BROTLI_DECODER_ERROR_CODES_LIST(BROTLI_ERROR_CODE, SEPARATOR) \
BROTLI_ERROR_CODE(_, NO_ERROR, 0) SEPARATOR \
/* Same as BrotliDecoderResult values */ \
BROTLI_ERROR_CODE(_, SUCCESS, 1) SEPARATOR \
BROTLI_ERROR_CODE(_, NEEDS_MORE_INPUT, 2) SEPARATOR \
BROTLI_ERROR_CODE(_, NEEDS_MORE_OUTPUT, 3) SEPARATOR \
\
/* Errors caused by invalid input */ \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, EXUBERANT_NIBBLE, -1) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, RESERVED, -2) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, EXUBERANT_META_NIBBLE, -3) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, SIMPLE_HUFFMAN_ALPHABET, -4) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, SIMPLE_HUFFMAN_SAME, -5) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, CL_SPACE, -6) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, HUFFMAN_SPACE, -7) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, CONTEXT_MAP_REPEAT, -8) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, BLOCK_LENGTH_1, -9) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, BLOCK_LENGTH_2, -10) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, TRANSFORM, -11) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, DICTIONARY, -12) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, WINDOW_BITS, -13) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, PADDING_1, -14) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, PADDING_2, -15) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_FORMAT_, DISTANCE, -16) SEPARATOR \
\
/* -17..-18 codes are reserved */ \
\
BROTLI_ERROR_CODE(_ERROR_, DICTIONARY_NOT_SET, -19) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_, INVALID_ARGUMENTS, -20) SEPARATOR \
\
/* Memory allocation problems */ \
BROTLI_ERROR_CODE(_ERROR_ALLOC_, CONTEXT_MODES, -21) SEPARATOR \
/* Literal, insert and distance trees together */ \
BROTLI_ERROR_CODE(_ERROR_ALLOC_, TREE_GROUPS, -22) SEPARATOR \
/* -23..-24 codes are reserved for distinct tree groups */ \
BROTLI_ERROR_CODE(_ERROR_ALLOC_, CONTEXT_MAP, -25) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_ALLOC_, RING_BUFFER_1, -26) SEPARATOR \
BROTLI_ERROR_CODE(_ERROR_ALLOC_, RING_BUFFER_2, -27) SEPARATOR \
/* -28..-29 codes are reserved for dynamic ring-buffer allocation */ \
BROTLI_ERROR_CODE(_ERROR_ALLOC_, BLOCK_TYPE_TREES, -30) SEPARATOR \
\
/* "Impossible" states */ \
BROTLI_ERROR_CODE(_ERROR_, UNREACHABLE, -31)
/**
* Error code for detailed logging / production debugging.
*
* See ::BrotliDecoderGetErrorCode and ::BROTLI_LAST_ERROR_CODE.
*/
typedef enum {
#define BROTLI_COMMA_ ,
#define BROTLI_ERROR_CODE_ENUM_ITEM_(PREFIX, NAME, CODE) \
BROTLI_DECODER ## PREFIX ## NAME = CODE
BROTLI_DECODER_ERROR_CODES_LIST(BROTLI_ERROR_CODE_ENUM_ITEM_, BROTLI_COMMA_)
} BrotliDecoderErrorCode;
#undef BROTLI_ERROR_CODE_ENUM_ITEM_
#undef BROTLI_COMMA_
/**
* The value of the last error code, negative integer.
*
* All other error code values are in the range from ::BROTLI_LAST_ERROR_CODE
* to @c -1. There are also 4 other possible non-error codes @c 0 .. @c 3 in
* ::BrotliDecoderErrorCode enumeration.
*/
#define BROTLI_LAST_ERROR_CODE BROTLI_DECODER_ERROR_UNREACHABLE
/** Options to be used with ::BrotliDecoderSetParameter. */
typedef enum BrotliDecoderParameter {
/**
* Disable "canny" ring buffer allocation strategy.
*
* Ring buffer is allocated according to window size, despite the real size of
* the content.
*/
BROTLI_DECODER_PARAM_DISABLE_RING_BUFFER_REALLOCATION = 0,
/**
* Flag that determines if "Large Window Brotli" is used.
*/
BROTLI_DECODER_PARAM_LARGE_WINDOW = 1
} BrotliDecoderParameter;
/**
* Sets the specified parameter to the given decoder instance.
*
* @param state decoder instance
* @param param parameter to set
* @param value new parameter value
* @returns ::BROTLI_FALSE if parameter is unrecognized, or value is invalid
* @returns ::BROTLI_TRUE if value is accepted
*/
BROTLI_DEC_API BROTLI_BOOL BrotliDecoderSetParameter(
BrotliDecoderState* state, BrotliDecoderParameter param, uint32_t value);
/**
* Creates an instance of ::BrotliDecoderState and initializes it.
*
* The instance can be used once for decoding and should then be destroyed with
* ::BrotliDecoderDestroyInstance, it cannot be reused for a new decoding
* session.
*
* @p alloc_func and @p free_func @b MUST be both zero or both non-zero. In the
* case they are both zero, default memory allocators are used. @p opaque is
* passed to @p alloc_func and @p free_func when they are called. @p free_func
* has to return without doing anything when asked to free a NULL pointer.
*
* @param alloc_func custom memory allocation function
* @param free_func custom memory free function
* @param opaque custom memory manager handle
* @returns @c 0 if instance can not be allocated or initialized
* @returns pointer to initialized ::BrotliDecoderState otherwise
*/
BROTLI_DEC_API BrotliDecoderState* BrotliDecoderCreateInstance(
brotli_alloc_func alloc_func, brotli_free_func free_func, void* opaque);
/**
* Deinitializes and frees ::BrotliDecoderState instance.
*
* @param state decoder instance to be cleaned up and deallocated
*/
BROTLI_DEC_API void BrotliDecoderDestroyInstance(BrotliDecoderState* state);
/**
* Performs one-shot memory-to-memory decompression.
*
* Decompresses the data in @p encoded_buffer into @p decoded_buffer, and sets
* @p *decoded_size to the decompressed length.
*
* @param encoded_size size of @p encoded_buffer
* @param encoded_buffer compressed data buffer with at least @p encoded_size
* addressable bytes
* @param[in, out] decoded_size @b in: size of @p decoded_buffer; \n
* @b out: length of decompressed data written to
* @p decoded_buffer
* @param decoded_buffer decompressed data destination buffer
* @returns ::BROTLI_DECODER_RESULT_ERROR if input is corrupted, memory
* allocation failed, or @p decoded_buffer is not large enough;
* @returns ::BROTLI_DECODER_RESULT_SUCCESS otherwise
*/
BROTLI_DEC_API BrotliDecoderResult BrotliDecoderDecompress(
size_t encoded_size,
const uint8_t encoded_buffer[BROTLI_ARRAY_PARAM(encoded_size)],
size_t* decoded_size,
uint8_t decoded_buffer[BROTLI_ARRAY_PARAM(*decoded_size)]);
/**
* Decompresses the input stream to the output stream.
*
* The values @p *available_in and @p *available_out must specify the number of
* bytes addressable at @p *next_in and @p *next_out respectively.
* When @p *available_out is @c 0, @p next_out is allowed to be @c NULL.
*
* After each call, @p *available_in will be decremented by the amount of input
* bytes consumed, and the @p *next_in pointer will be incremented by that
* amount. Similarly, @p *available_out will be decremented by the amount of
* output bytes written, and the @p *next_out pointer will be incremented by
* that amount.
*
* @p total_out, if it is not a null-pointer, will be set to the number
* of bytes decompressed since the last @p state initialization.
*
* @note Input is never overconsumed, so @p next_in and @p available_in could be
* passed to the next consumer after decoding is complete.
*
* @param state decoder instance
* @param[in, out] available_in @b in: amount of available input; \n
* @b out: amount of unused input
* @param[in, out] next_in pointer to the next compressed byte
* @param[in, out] available_out @b in: length of output buffer; \n
* @b out: remaining size of output buffer
* @param[in, out] next_out output buffer cursor;
* can be @c NULL if @p available_out is @c 0
* @param[out] total_out number of bytes decompressed so far; can be @c NULL
* @returns ::BROTLI_DECODER_RESULT_ERROR if input is corrupted, memory
* allocation failed, arguments were invalid, etc.;
* use ::BrotliDecoderGetErrorCode to get detailed error code
* @returns ::BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT decoding is blocked until
* more input data is provided
* @returns ::BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT decoding is blocked until
* more output space is provided
* @returns ::BROTLI_DECODER_RESULT_SUCCESS decoding is finished, no more
* input might be consumed and no more output will be produced
*/
BROTLI_DEC_API BrotliDecoderResult BrotliDecoderDecompressStream(
BrotliDecoderState* state, size_t* available_in, const uint8_t** next_in,
size_t* available_out, uint8_t** next_out, size_t* total_out);
/**
* Checks if decoder has more output.
*
* @param state decoder instance
* @returns ::BROTLI_TRUE, if decoder has some unconsumed output
* @returns ::BROTLI_FALSE otherwise
*/
BROTLI_DEC_API BROTLI_BOOL BrotliDecoderHasMoreOutput(
const BrotliDecoderState* state);
/**
* Acquires pointer to internal output buffer.
*
* This method is used to make language bindings easier and more efficient:
* -# push data to ::BrotliDecoderDecompressStream,
* until ::BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT is reported
* -# use ::BrotliDecoderTakeOutput to peek bytes and copy to language-specific
* entity
*
* Also this could be useful if there is an output stream that is able to
* consume all the provided data (e.g. when data is saved to file system).
*
* @attention After every call to ::BrotliDecoderTakeOutput @p *size bytes of
* output are considered consumed for all consecutive calls to the
* instance methods; returned pointer becomes invalidated as well.
*
* @note Decoder output is not guaranteed to be contiguous. This means that
* after the size-unrestricted call to ::BrotliDecoderTakeOutput,
* immediate next call to ::BrotliDecoderTakeOutput may return more data.
*
* @param state decoder instance
* @param[in, out] size @b in: number of bytes caller is ready to take, @c 0 if
* any amount could be handled; \n
* @b out: amount of data pointed by returned pointer and
* considered consumed; \n
* out value is never greater than in value, unless it is @c 0
* @returns pointer to output data
*/
BROTLI_DEC_API const uint8_t* BrotliDecoderTakeOutput(
BrotliDecoderState* state, size_t* size);
/**
* Checks if instance has already consumed input.
*
* Instance that returns ::BROTLI_FALSE is considered "fresh" and could be
* reused.
*
* @param state decoder instance
* @returns ::BROTLI_TRUE if decoder has already used some input bytes
* @returns ::BROTLI_FALSE otherwise
*/
BROTLI_DEC_API BROTLI_BOOL BrotliDecoderIsUsed(const BrotliDecoderState* state);
/**
* Checks if decoder instance reached the final state.
*
* @param state decoder instance
* @returns ::BROTLI_TRUE if decoder is in a state where it reached the end of
* the input and produced all of the output
* @returns ::BROTLI_FALSE otherwise
*/
BROTLI_DEC_API BROTLI_BOOL BrotliDecoderIsFinished(
const BrotliDecoderState* state);
/**
* Acquires a detailed error code.
*
* Should be used only after ::BrotliDecoderDecompressStream returns
* ::BROTLI_DECODER_RESULT_ERROR.
*
* See also ::BrotliDecoderErrorString
*
* @param state decoder instance
* @returns last saved error code
*/
BROTLI_DEC_API BrotliDecoderErrorCode BrotliDecoderGetErrorCode(
const BrotliDecoderState* state);
/**
* Converts error code to a c-string.
*/
BROTLI_DEC_API const char* BrotliDecoderErrorString(BrotliDecoderErrorCode c);
/**
* Gets a decoder library version.
*
* Look at BROTLI_VERSION for more information.
*/
BROTLI_DEC_API uint32_t BrotliDecoderVersion(void);
#if defined(__cplusplus) || defined(c_plusplus)
} /* extern "C" */
#endif
#endif /* BROTLI_DEC_DECODE_H_ */

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/* Copyright 2013 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/**
* @file
* API for Brotli compression.
*/
#ifndef BROTLI_ENC_ENCODE_H_
#define BROTLI_ENC_ENCODE_H_
#include <brotli/port.h>
#include <brotli/types.h>
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
/** Minimal value for ::BROTLI_PARAM_LGWIN parameter. */
#define BROTLI_MIN_WINDOW_BITS 10
/**
* Maximal value for ::BROTLI_PARAM_LGWIN parameter.
*
* @note equal to @c BROTLI_MAX_DISTANCE_BITS constant.
*/
#define BROTLI_MAX_WINDOW_BITS 24
/**
* Maximal value for ::BROTLI_PARAM_LGWIN parameter
* in "Large Window Brotli" (32-bit).
*/
#define BROTLI_LARGE_MAX_WINDOW_BITS 30
/** Minimal value for ::BROTLI_PARAM_LGBLOCK parameter. */
#define BROTLI_MIN_INPUT_BLOCK_BITS 16
/** Maximal value for ::BROTLI_PARAM_LGBLOCK parameter. */
#define BROTLI_MAX_INPUT_BLOCK_BITS 24
/** Minimal value for ::BROTLI_PARAM_QUALITY parameter. */
#define BROTLI_MIN_QUALITY 0
/** Maximal value for ::BROTLI_PARAM_QUALITY parameter. */
#define BROTLI_MAX_QUALITY 11
/** Options for ::BROTLI_PARAM_MODE parameter. */
typedef enum BrotliEncoderMode {
/**
* Default compression mode.
*
* In this mode compressor does not know anything in advance about the
* properties of the input.
*/
BROTLI_MODE_GENERIC = 0,
/** Compression mode for UTF-8 formatted text input. */
BROTLI_MODE_TEXT = 1,
/** Compression mode used in WOFF 2.0. */
BROTLI_MODE_FONT = 2
} BrotliEncoderMode;
/** Default value for ::BROTLI_PARAM_QUALITY parameter. */
#define BROTLI_DEFAULT_QUALITY 11
/** Default value for ::BROTLI_PARAM_LGWIN parameter. */
#define BROTLI_DEFAULT_WINDOW 22
/** Default value for ::BROTLI_PARAM_MODE parameter. */
#define BROTLI_DEFAULT_MODE BROTLI_MODE_GENERIC
/** Operations that can be performed by streaming encoder. */
typedef enum BrotliEncoderOperation {
/**
* Process input.
*
* Encoder may postpone producing output, until it has processed enough input.
*/
BROTLI_OPERATION_PROCESS = 0,
/**
* Produce output for all processed input.
*
* Actual flush is performed when input stream is depleted and there is enough
* space in output stream. This means that client should repeat
* ::BROTLI_OPERATION_FLUSH operation until @p available_in becomes @c 0, and
* ::BrotliEncoderHasMoreOutput returns ::BROTLI_FALSE. If output is acquired
* via ::BrotliEncoderTakeOutput, then operation should be repeated after
* output buffer is drained.
*
* @warning Until flush is complete, client @b SHOULD @b NOT swap,
* reduce or extend input stream.
*
* When flush is complete, output data will be sufficient for decoder to
* reproduce all the given input.
*/
BROTLI_OPERATION_FLUSH = 1,
/**
* Finalize the stream.
*
* Actual finalization is performed when input stream is depleted and there is
* enough space in output stream. This means that client should repeat
* ::BROTLI_OPERATION_FINISH operation until @p available_in becomes @c 0, and
* ::BrotliEncoderHasMoreOutput returns ::BROTLI_FALSE. If output is acquired
* via ::BrotliEncoderTakeOutput, then operation should be repeated after
* output buffer is drained.
*
* @warning Until finalization is complete, client @b SHOULD @b NOT swap,
* reduce or extend input stream.
*
* Helper function ::BrotliEncoderIsFinished checks if stream is finalized and
* output fully dumped.
*
* Adding more input data to finalized stream is impossible.
*/
BROTLI_OPERATION_FINISH = 2,
/**
* Emit metadata block to stream.
*
* Metadata is opaque to Brotli: neither encoder, nor decoder processes this
* data or relies on it. It may be used to pass some extra information from
* encoder client to decoder client without interfering with main data stream.
*
* @note Encoder may emit empty metadata blocks internally, to pad encoded
* stream to byte boundary.
*
* @warning Until emitting metadata is complete client @b SHOULD @b NOT swap,
* reduce or extend input stream.
*
* @warning The whole content of input buffer is considered to be the content
* of metadata block. Do @b NOT @e append metadata to input stream,
* before it is depleted with other operations.
*
* Stream is soft-flushed before metadata block is emitted. Metadata block
* @b MUST be no longer than than 16MiB.
*/
BROTLI_OPERATION_EMIT_METADATA = 3
} BrotliEncoderOperation;
/** Options to be used with ::BrotliEncoderSetParameter. */
typedef enum BrotliEncoderParameter {
/**
* Tune encoder for specific input.
*
* ::BrotliEncoderMode enumerates all available values.
*/
BROTLI_PARAM_MODE = 0,
/**
* The main compression speed-density lever.
*
* The higher the quality, the slower the compression. Range is
* from ::BROTLI_MIN_QUALITY to ::BROTLI_MAX_QUALITY.
*/
BROTLI_PARAM_QUALITY = 1,
/**
* Recommended sliding LZ77 window size.
*
* Encoder may reduce this value, e.g. if input is much smaller than
* window size.
*
* Window size is `(1 << value) - 16`.
*
* Range is from ::BROTLI_MIN_WINDOW_BITS to ::BROTLI_MAX_WINDOW_BITS.
*/
BROTLI_PARAM_LGWIN = 2,
/**
* Recommended input block size.
*
* Encoder may reduce this value, e.g. if input is much smaller than input
* block size.
*
* Range is from ::BROTLI_MIN_INPUT_BLOCK_BITS to
* ::BROTLI_MAX_INPUT_BLOCK_BITS.
*
* @note Bigger input block size allows better compression, but consumes more
* memory. \n The rough formula of memory used for temporary input
* storage is `3 << lgBlock`.
*/
BROTLI_PARAM_LGBLOCK = 3,
/**
* Flag that affects usage of "literal context modeling" format feature.
*
* This flag is a "decoding-speed vs compression ratio" trade-off.
*/
BROTLI_PARAM_DISABLE_LITERAL_CONTEXT_MODELING = 4,
/**
* Estimated total input size for all ::BrotliEncoderCompressStream calls.
*
* The default value is 0, which means that the total input size is unknown.
*/
BROTLI_PARAM_SIZE_HINT = 5,
/**
* Flag that determines if "Large Window Brotli" is used.
*/
BROTLI_PARAM_LARGE_WINDOW = 6,
/**
* Recommended number of postfix bits (NPOSTFIX).
*
* Encoder may change this value.
*
* Range is from 0 to ::BROTLI_MAX_NPOSTFIX.
*/
BROTLI_PARAM_NPOSTFIX = 7,
/**
* Recommended number of direct distance codes (NDIRECT).
*
* Encoder may change this value.
*
* Range is from 0 to (15 << NPOSTFIX) in steps of (1 << NPOSTFIX).
*/
BROTLI_PARAM_NDIRECT = 8,
/**
* Number of bytes of input stream already processed by a different instance.
*
* @note It is important to configure all the encoder instances with same
* parameters (except this one) in order to allow all the encoded parts
* obey the same restrictions implied by header.
*
* If offset is not 0, then stream header is omitted.
* In any case output start is byte aligned, so for proper streams stitching
* "predecessor" stream must be flushed.
*
* Range is not artificially limited, but all the values greater or equal to
* maximal window size have the same effect. Values greater than 2**30 are not
* allowed.
*/
BROTLI_PARAM_STREAM_OFFSET = 9
} BrotliEncoderParameter;
/**
* Opaque structure that holds encoder state.
*
* Allocated and initialized with ::BrotliEncoderCreateInstance.
* Cleaned up and deallocated with ::BrotliEncoderDestroyInstance.
*/
typedef struct BrotliEncoderStateStruct BrotliEncoderState;
/**
* Sets the specified parameter to the given encoder instance.
*
* @param state encoder instance
* @param param parameter to set
* @param value new parameter value
* @returns ::BROTLI_FALSE if parameter is unrecognized, or value is invalid
* @returns ::BROTLI_FALSE if value of parameter can not be changed at current
* encoder state (e.g. when encoding is started, window size might be
* already encoded and therefore it is impossible to change it)
* @returns ::BROTLI_TRUE if value is accepted
* @warning invalid values might be accepted in case they would not break
* encoding process.
*/
BROTLI_ENC_API BROTLI_BOOL BrotliEncoderSetParameter(
BrotliEncoderState* state, BrotliEncoderParameter param, uint32_t value);
/**
* Creates an instance of ::BrotliEncoderState and initializes it.
*
* @p alloc_func and @p free_func @b MUST be both zero or both non-zero. In the
* case they are both zero, default memory allocators are used. @p opaque is
* passed to @p alloc_func and @p free_func when they are called. @p free_func
* has to return without doing anything when asked to free a NULL pointer.
*
* @param alloc_func custom memory allocation function
* @param free_func custom memory free function
* @param opaque custom memory manager handle
* @returns @c 0 if instance can not be allocated or initialized
* @returns pointer to initialized ::BrotliEncoderState otherwise
*/
BROTLI_ENC_API BrotliEncoderState* BrotliEncoderCreateInstance(
brotli_alloc_func alloc_func, brotli_free_func free_func, void* opaque);
/**
* Deinitializes and frees ::BrotliEncoderState instance.
*
* @param state decoder instance to be cleaned up and deallocated
*/
BROTLI_ENC_API void BrotliEncoderDestroyInstance(BrotliEncoderState* state);
/**
* Calculates the output size bound for the given @p input_size.
*
* @warning Result is only valid if quality is at least @c 2 and, in
* case ::BrotliEncoderCompressStream was used, no flushes
* (::BROTLI_OPERATION_FLUSH) were performed.
*
* @param input_size size of projected input
* @returns @c 0 if result does not fit @c size_t
*/
BROTLI_ENC_API size_t BrotliEncoderMaxCompressedSize(size_t input_size);
/**
* Performs one-shot memory-to-memory compression.
*
* Compresses the data in @p input_buffer into @p encoded_buffer, and sets
* @p *encoded_size to the compressed length.
*
* @note If ::BrotliEncoderMaxCompressedSize(@p input_size) returns non-zero
* value, then output is guaranteed to be no longer than that.
*
* @note If @p lgwin is greater than ::BROTLI_MAX_WINDOW_BITS then resulting
* stream might be incompatible with RFC 7932; to decode such streams,
* decoder should be configured with
* ::BROTLI_DECODER_PARAM_LARGE_WINDOW = @c 1
*
* @param quality quality parameter value, e.g. ::BROTLI_DEFAULT_QUALITY
* @param lgwin lgwin parameter value, e.g. ::BROTLI_DEFAULT_WINDOW
* @param mode mode parameter value, e.g. ::BROTLI_DEFAULT_MODE
* @param input_size size of @p input_buffer
* @param input_buffer input data buffer with at least @p input_size
* addressable bytes
* @param[in, out] encoded_size @b in: size of @p encoded_buffer; \n
* @b out: length of compressed data written to
* @p encoded_buffer, or @c 0 if compression fails
* @param encoded_buffer compressed data destination buffer
* @returns ::BROTLI_FALSE in case of compression error
* @returns ::BROTLI_FALSE if output buffer is too small
* @returns ::BROTLI_TRUE otherwise
*/
BROTLI_ENC_API BROTLI_BOOL BrotliEncoderCompress(
int quality, int lgwin, BrotliEncoderMode mode, size_t input_size,
const uint8_t input_buffer[BROTLI_ARRAY_PARAM(input_size)],
size_t* encoded_size,
uint8_t encoded_buffer[BROTLI_ARRAY_PARAM(*encoded_size)]);
/**
* Compresses input stream to output stream.
*
* The values @p *available_in and @p *available_out must specify the number of
* bytes addressable at @p *next_in and @p *next_out respectively.
* When @p *available_out is @c 0, @p next_out is allowed to be @c NULL.
*
* After each call, @p *available_in will be decremented by the amount of input
* bytes consumed, and the @p *next_in pointer will be incremented by that
* amount. Similarly, @p *available_out will be decremented by the amount of
* output bytes written, and the @p *next_out pointer will be incremented by
* that amount.
*
* @p total_out, if it is not a null-pointer, will be set to the number
* of bytes compressed since the last @p state initialization.
*
*
*
* Internally workflow consists of 3 tasks:
* -# (optionally) copy input data to internal buffer
* -# actually compress data and (optionally) store it to internal buffer
* -# (optionally) copy compressed bytes from internal buffer to output stream
*
* Whenever all 3 tasks can't move forward anymore, or error occurs, this
* method returns the control flow to caller.
*
* @p op is used to perform flush, finish the stream, or inject metadata block.
* See ::BrotliEncoderOperation for more information.
*
* Flushing the stream means forcing encoding of all input passed to encoder and
* completing the current output block, so it could be fully decoded by stream
* decoder. To perform flush set @p op to ::BROTLI_OPERATION_FLUSH.
* Under some circumstances (e.g. lack of output stream capacity) this operation
* would require several calls to ::BrotliEncoderCompressStream. The method must
* be called again until both input stream is depleted and encoder has no more
* output (see ::BrotliEncoderHasMoreOutput) after the method is called.
*
* Finishing the stream means encoding of all input passed to encoder and
* adding specific "final" marks, so stream decoder could determine that stream
* is complete. To perform finish set @p op to ::BROTLI_OPERATION_FINISH.
* Under some circumstances (e.g. lack of output stream capacity) this operation
* would require several calls to ::BrotliEncoderCompressStream. The method must
* be called again until both input stream is depleted and encoder has no more
* output (see ::BrotliEncoderHasMoreOutput) after the method is called.
*
* @warning When flushing and finishing, @p op should not change until operation
* is complete; input stream should not be swapped, reduced or
* extended as well.
*
* @param state encoder instance
* @param op requested operation
* @param[in, out] available_in @b in: amount of available input; \n
* @b out: amount of unused input
* @param[in, out] next_in pointer to the next input byte
* @param[in, out] available_out @b in: length of output buffer; \n
* @b out: remaining size of output buffer
* @param[in, out] next_out compressed output buffer cursor;
* can be @c NULL if @p available_out is @c 0
* @param[out] total_out number of bytes produced so far; can be @c NULL
* @returns ::BROTLI_FALSE if there was an error
* @returns ::BROTLI_TRUE otherwise
*/
BROTLI_ENC_API BROTLI_BOOL BrotliEncoderCompressStream(
BrotliEncoderState* state, BrotliEncoderOperation op, size_t* available_in,
const uint8_t** next_in, size_t* available_out, uint8_t** next_out,
size_t* total_out);
/**
* Checks if encoder instance reached the final state.
*
* @param state encoder instance
* @returns ::BROTLI_TRUE if encoder is in a state where it reached the end of
* the input and produced all of the output
* @returns ::BROTLI_FALSE otherwise
*/
BROTLI_ENC_API BROTLI_BOOL BrotliEncoderIsFinished(BrotliEncoderState* state);
/**
* Checks if encoder has more output.
*
* @param state encoder instance
* @returns ::BROTLI_TRUE, if encoder has some unconsumed output
* @returns ::BROTLI_FALSE otherwise
*/
BROTLI_ENC_API BROTLI_BOOL BrotliEncoderHasMoreOutput(
BrotliEncoderState* state);
/**
* Acquires pointer to internal output buffer.
*
* This method is used to make language bindings easier and more efficient:
* -# push data to ::BrotliEncoderCompressStream,
* until ::BrotliEncoderHasMoreOutput returns BROTL_TRUE
* -# use ::BrotliEncoderTakeOutput to peek bytes and copy to language-specific
* entity
*
* Also this could be useful if there is an output stream that is able to
* consume all the provided data (e.g. when data is saved to file system).
*
* @attention After every call to ::BrotliEncoderTakeOutput @p *size bytes of
* output are considered consumed for all consecutive calls to the
* instance methods; returned pointer becomes invalidated as well.
*
* @note Encoder output is not guaranteed to be contiguous. This means that
* after the size-unrestricted call to ::BrotliEncoderTakeOutput,
* immediate next call to ::BrotliEncoderTakeOutput may return more data.
*
* @param state encoder instance
* @param[in, out] size @b in: number of bytes caller is ready to take, @c 0 if
* any amount could be handled; \n
* @b out: amount of data pointed by returned pointer and
* considered consumed; \n
* out value is never greater than in value, unless it is @c 0
* @returns pointer to output data
*/
BROTLI_ENC_API const uint8_t* BrotliEncoderTakeOutput(
BrotliEncoderState* state, size_t* size);
/**
* Gets an encoder library version.
*
* Look at BROTLI_VERSION for more information.
*/
BROTLI_ENC_API uint32_t BrotliEncoderVersion(void);
#if defined(__cplusplus) || defined(c_plusplus)
} /* extern "C" */
#endif
#endif /* BROTLI_ENC_ENCODE_H_ */

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/* Copyright 2016 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/* Macros for compiler / platform specific API declarations. */
#ifndef BROTLI_COMMON_PORT_H_
#define BROTLI_COMMON_PORT_H_
/* The following macros were borrowed from https://github.com/nemequ/hedley
* with permission of original author - Evan Nemerson <evan@nemerson.com> */
/* >>> >>> >>> hedley macros */
#define BROTLI_MAKE_VERSION(major, minor, revision) \
(((major) * 1000000) + ((minor) * 1000) + (revision))
#if defined(__GNUC__) && defined(__GNUC_PATCHLEVEL__)
#define BROTLI_GNUC_VERSION \
BROTLI_MAKE_VERSION(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__)
#elif defined(__GNUC__)
#define BROTLI_GNUC_VERSION BROTLI_MAKE_VERSION(__GNUC__, __GNUC_MINOR__, 0)
#endif
#if defined(BROTLI_GNUC_VERSION)
#define BROTLI_GNUC_VERSION_CHECK(major, minor, patch) \
(BROTLI_GNUC_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_GNUC_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 140000000)
#define BROTLI_MSVC_VERSION \
BROTLI_MAKE_VERSION((_MSC_FULL_VER / 10000000), \
(_MSC_FULL_VER % 10000000) / 100000, \
(_MSC_FULL_VER % 100000) / 100)
#elif defined(_MSC_FULL_VER)
#define BROTLI_MSVC_VERSION \
BROTLI_MAKE_VERSION((_MSC_FULL_VER / 1000000), \
(_MSC_FULL_VER % 1000000) / 10000, \
(_MSC_FULL_VER % 10000) / 10)
#elif defined(_MSC_VER)
#define BROTLI_MSVC_VERSION \
BROTLI_MAKE_VERSION(_MSC_VER / 100, _MSC_VER % 100, 0)
#endif
#if !defined(_MSC_VER)
#define BROTLI_MSVC_VERSION_CHECK(major, minor, patch) (0)
#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
#define BROTLI_MSVC_VERSION_CHECK(major, minor, patch) \
(_MSC_FULL_VER >= ((major * 10000000) + (minor * 100000) + (patch)))
#elif defined(_MSC_VER) && (_MSC_VER >= 1200)
#define BROTLI_MSVC_VERSION_CHECK(major, minor, patch) \
(_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch)))
#else
#define BROTLI_MSVC_VERSION_CHECK(major, minor, patch) \
(_MSC_VER >= ((major * 100) + (minor)))
#endif
#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE)
#define BROTLI_INTEL_VERSION \
BROTLI_MAKE_VERSION(__INTEL_COMPILER / 100, \
__INTEL_COMPILER % 100, \
__INTEL_COMPILER_UPDATE)
#elif defined(__INTEL_COMPILER)
#define BROTLI_INTEL_VERSION \
BROTLI_MAKE_VERSION(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, 0)
#endif
#if defined(BROTLI_INTEL_VERSION)
#define BROTLI_INTEL_VERSION_CHECK(major, minor, patch) \
(BROTLI_INTEL_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_INTEL_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(__PGI) && \
defined(__PGIC__) && defined(__PGIC_MINOR__) && defined(__PGIC_PATCHLEVEL__)
#define BROTLI_PGI_VERSION \
BROTLI_MAKE_VERSION(__PGIC__, __PGIC_MINOR__, __PGIC_PATCHLEVEL__)
#endif
#if defined(BROTLI_PGI_VERSION)
#define BROTLI_PGI_VERSION_CHECK(major, minor, patch) \
(BROTLI_PGI_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_PGI_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(__SUNPRO_C) && (__SUNPRO_C > 0x1000)
#define BROTLI_SUNPRO_VERSION \
BROTLI_MAKE_VERSION( \
(((__SUNPRO_C >> 16) & 0xf) * 10) + ((__SUNPRO_C >> 12) & 0xf), \
(((__SUNPRO_C >> 8) & 0xf) * 10) + ((__SUNPRO_C >> 4) & 0xf), \
(__SUNPRO_C & 0xf) * 10)
#elif defined(__SUNPRO_C)
#define BROTLI_SUNPRO_VERSION \
BROTLI_MAKE_VERSION((__SUNPRO_C >> 8) & 0xf, \
(__SUNPRO_C >> 4) & 0xf, \
(__SUNPRO_C) & 0xf)
#elif defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x1000)
#define BROTLI_SUNPRO_VERSION \
BROTLI_MAKE_VERSION( \
(((__SUNPRO_CC >> 16) & 0xf) * 10) + ((__SUNPRO_CC >> 12) & 0xf), \
(((__SUNPRO_CC >> 8) & 0xf) * 10) + ((__SUNPRO_CC >> 4) & 0xf), \
(__SUNPRO_CC & 0xf) * 10)
#elif defined(__SUNPRO_CC)
#define BROTLI_SUNPRO_VERSION \
BROTLI_MAKE_VERSION((__SUNPRO_CC >> 8) & 0xf, \
(__SUNPRO_CC >> 4) & 0xf, \
(__SUNPRO_CC) & 0xf)
#endif
#if defined(BROTLI_SUNPRO_VERSION)
#define BROTLI_SUNPRO_VERSION_CHECK(major, minor, patch) \
(BROTLI_SUNPRO_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_SUNPRO_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(__CC_ARM) && defined(__ARMCOMPILER_VERSION)
#define BROTLI_ARM_VERSION \
BROTLI_MAKE_VERSION((__ARMCOMPILER_VERSION / 1000000), \
(__ARMCOMPILER_VERSION % 1000000) / 10000, \
(__ARMCOMPILER_VERSION % 10000) / 100)
#elif defined(__CC_ARM) && defined(__ARMCC_VERSION)
#define BROTLI_ARM_VERSION \
BROTLI_MAKE_VERSION((__ARMCC_VERSION / 1000000), \
(__ARMCC_VERSION % 1000000) / 10000, \
(__ARMCC_VERSION % 10000) / 100)
#endif
#if defined(BROTLI_ARM_VERSION)
#define BROTLI_ARM_VERSION_CHECK(major, minor, patch) \
(BROTLI_ARM_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_ARM_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(__ibmxl__)
#define BROTLI_IBM_VERSION \
BROTLI_MAKE_VERSION(__ibmxl_version__, \
__ibmxl_release__, \
__ibmxl_modification__)
#elif defined(__xlC__) && defined(__xlC_ver__)
#define BROTLI_IBM_VERSION \
BROTLI_MAKE_VERSION(__xlC__ >> 8, __xlC__ & 0xff, (__xlC_ver__ >> 8) & 0xff)
#elif defined(__xlC__)
#define BROTLI_IBM_VERSION BROTLI_MAKE_VERSION(__xlC__ >> 8, __xlC__ & 0xff, 0)
#endif
#if defined(BROTLI_IBM_VERSION)
#define BROTLI_IBM_VERSION_CHECK(major, minor, patch) \
(BROTLI_IBM_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_IBM_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(__TI_COMPILER_VERSION__)
#define BROTLI_TI_VERSION \
BROTLI_MAKE_VERSION((__TI_COMPILER_VERSION__ / 1000000), \
(__TI_COMPILER_VERSION__ % 1000000) / 1000, \
(__TI_COMPILER_VERSION__ % 1000))
#endif
#if defined(BROTLI_TI_VERSION)
#define BROTLI_TI_VERSION_CHECK(major, minor, patch) \
(BROTLI_TI_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_TI_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(__IAR_SYSTEMS_ICC__)
#if __VER__ > 1000
#define BROTLI_IAR_VERSION \
BROTLI_MAKE_VERSION((__VER__ / 1000000), \
(__VER__ / 1000) % 1000, \
(__VER__ % 1000))
#else
#define BROTLI_IAR_VERSION BROTLI_MAKE_VERSION(VER / 100, __VER__ % 100, 0)
#endif
#endif
#if defined(BROTLI_IAR_VERSION)
#define BROTLI_IAR_VERSION_CHECK(major, minor, patch) \
(BROTLI_IAR_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_IAR_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(__TINYC__)
#define BROTLI_TINYC_VERSION \
BROTLI_MAKE_VERSION(__TINYC__ / 1000, (__TINYC__ / 100) % 10, __TINYC__ % 100)
#endif
#if defined(BROTLI_TINYC_VERSION)
#define BROTLI_TINYC_VERSION_CHECK(major, minor, patch) \
(BROTLI_TINYC_VERSION >= BROTLI_MAKE_VERSION(major, minor, patch))
#else
#define BROTLI_TINYC_VERSION_CHECK(major, minor, patch) (0)
#endif
#if defined(__has_attribute)
#define BROTLI_GNUC_HAS_ATTRIBUTE(attribute, major, minor, patch) \
__has_attribute(attribute)
#else
#define BROTLI_GNUC_HAS_ATTRIBUTE(attribute, major, minor, patch) \
BROTLI_GNUC_VERSION_CHECK(major, minor, patch)
#endif
#if defined(__has_builtin)
#define BROTLI_GNUC_HAS_BUILTIN(builtin, major, minor, patch) \
__has_builtin(builtin)
#else
#define BROTLI_GNUC_HAS_BUILTIN(builtin, major, minor, patch) \
BROTLI_GNUC_VERSION_CHECK(major, minor, patch)
#endif
#if defined(__has_feature)
#define BROTLI_HAS_FEATURE(feature) __has_feature(feature)
#else
#define BROTLI_HAS_FEATURE(feature) (0)
#endif
#if defined(ADDRESS_SANITIZER) || BROTLI_HAS_FEATURE(address_sanitizer) || \
defined(THREAD_SANITIZER) || BROTLI_HAS_FEATURE(thread_sanitizer) || \
defined(MEMORY_SANITIZER) || BROTLI_HAS_FEATURE(memory_sanitizer)
#define BROTLI_SANITIZED 1
#else
#define BROTLI_SANITIZED 0
#endif
#if defined(_WIN32) || defined(__CYGWIN__)
#define BROTLI_PUBLIC
#elif BROTLI_GNUC_VERSION_CHECK(3, 3, 0) || \
BROTLI_TI_VERSION_CHECK(8, 0, 0) || \
BROTLI_INTEL_VERSION_CHECK(16, 0, 0) || \
BROTLI_ARM_VERSION_CHECK(4, 1, 0) || \
BROTLI_IBM_VERSION_CHECK(13, 1, 0) || \
BROTLI_SUNPRO_VERSION_CHECK(5, 11, 0) || \
(BROTLI_TI_VERSION_CHECK(7, 3, 0) && \
defined(__TI_GNU_ATTRIBUTE_SUPPORT__) && defined(__TI_EABI__))
#define BROTLI_PUBLIC __attribute__ ((visibility ("default")))
#else
#define BROTLI_PUBLIC
#endif
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
!defined(__STDC_NO_VLA__) && !defined(__cplusplus) && \
!defined(__PGI) && !defined(__PGIC__) && !defined(__TINYC__)
#define BROTLI_ARRAY_PARAM(name) (name)
#else
#define BROTLI_ARRAY_PARAM(name)
#endif
/* <<< <<< <<< end of hedley macros. */
#if defined(BROTLI_SHARED_COMPILATION)
#if defined(_WIN32)
#if defined(BROTLICOMMON_SHARED_COMPILATION)
#define BROTLI_COMMON_API __declspec(dllexport)
#else
#define BROTLI_COMMON_API __declspec(dllimport)
#endif /* BROTLICOMMON_SHARED_COMPILATION */
#if defined(BROTLIDEC_SHARED_COMPILATION)
#define BROTLI_DEC_API __declspec(dllexport)
#else
#define BROTLI_DEC_API __declspec(dllimport)
#endif /* BROTLIDEC_SHARED_COMPILATION */
#if defined(BROTLIENC_SHARED_COMPILATION)
#define BROTLI_ENC_API __declspec(dllexport)
#else
#define BROTLI_ENC_API __declspec(dllimport)
#endif /* BROTLIENC_SHARED_COMPILATION */
#else /* _WIN32 */
#define BROTLI_COMMON_API BROTLI_PUBLIC
#define BROTLI_DEC_API BROTLI_PUBLIC
#define BROTLI_ENC_API BROTLI_PUBLIC
#endif /* _WIN32 */
#else /* BROTLI_SHARED_COMPILATION */
#define BROTLI_COMMON_API
#define BROTLI_DEC_API
#define BROTLI_ENC_API
#endif
#endif /* BROTLI_COMMON_PORT_H_ */

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/* Copyright 2013 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/**
* @file
* Common types used in decoder and encoder API.
*/
#ifndef BROTLI_COMMON_TYPES_H_
#define BROTLI_COMMON_TYPES_H_
#include <stddef.h> /* for size_t */
#if defined(_MSC_VER) && (_MSC_VER < 1600)
typedef __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;
typedef __int64 int64_t;
#else
#include <stdint.h>
#endif /* defined(_MSC_VER) && (_MSC_VER < 1600) */
/**
* A portable @c bool replacement.
*
* ::BROTLI_BOOL is a "documentation" type: actually it is @c int, but in API it
* denotes a type, whose only values are ::BROTLI_TRUE and ::BROTLI_FALSE.
*
* ::BROTLI_BOOL values passed to Brotli should either be ::BROTLI_TRUE or
* ::BROTLI_FALSE, or be a result of ::TO_BROTLI_BOOL macros.
*
* ::BROTLI_BOOL values returned by Brotli should not be tested for equality
* with @c true, @c false, ::BROTLI_TRUE, ::BROTLI_FALSE, but rather should be
* evaluated, for example: @code{.cpp}
* if (SomeBrotliFunction(encoder, BROTLI_TRUE) &&
* !OtherBrotliFunction(decoder, BROTLI_FALSE)) {
* bool x = !!YetAnotherBrotliFunction(encoder, TO_BROLTI_BOOL(2 * 2 == 4));
* DoSomething(x);
* }
* @endcode
*/
#define BROTLI_BOOL int
/** Portable @c true replacement. */
#define BROTLI_TRUE 1
/** Portable @c false replacement. */
#define BROTLI_FALSE 0
/** @c bool to ::BROTLI_BOOL conversion macros. */
#define TO_BROTLI_BOOL(X) (!!(X) ? BROTLI_TRUE : BROTLI_FALSE)
#define BROTLI_MAKE_UINT64_T(high, low) ((((uint64_t)(high)) << 32) | low)
#define BROTLI_UINT32_MAX (~((uint32_t)0))
#define BROTLI_SIZE_MAX (~((size_t)0))
/**
* Allocating function pointer type.
*
* @param opaque custom memory manager handle provided by client
* @param size requested memory region size; can not be @c 0
* @returns @c 0 in the case of failure
* @returns a valid pointer to a memory region of at least @p size bytes
* long otherwise
*/
typedef void* (*brotli_alloc_func)(void* opaque, size_t size);
/**
* Deallocating function pointer type.
*
* This function @b SHOULD do nothing if @p address is @c 0.
*
* @param opaque custom memory manager handle provided by client
* @param address memory region pointer returned by ::brotli_alloc_func, or @c 0
*/
typedef void (*brotli_free_func)(void* opaque, void* address);
#endif /* BROTLI_COMMON_TYPES_H_ */

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prefix=
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
Name: libbrotlicommon
URL: https://github.com/google/brotli
Description: Brotli common dictionary library
Version: 1.0.9
Libs: -L${libdir} -R${libdir} -lbrotlicommon
Cflags: -I${includedir}

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prefix=
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
Name: libbrotlidec
URL: https://github.com/google/brotli
Description: Brotli decoder library
Version: 1.0.9
Libs: -L${libdir} -R${libdir} -lbrotlidec
Requires.private: libbrotlicommon >= 1.0.2
Cflags: -I${includedir}

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prefix=
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
Name: libbrotlienc
URL: https://github.com/google/brotli
Description: Brotli encoder library
Version: 1.0.9
Libs: -L${libdir} -R${libdir} -lbrotlienc
Requires.private: libbrotlicommon >= 1.0.2
Cflags: -I${includedir}