diff options
Diffstat (limited to 'Source/ThirdParty/brotli/include/brotli')
| -rwxr-xr-x | Source/ThirdParty/brotli/include/brotli/decode.h | 339 | ||||
| -rwxr-xr-x | Source/ThirdParty/brotli/include/brotli/encode.h | 402 | ||||
| -rwxr-xr-x | Source/ThirdParty/brotli/include/brotli/port.h | 146 | ||||
| -rwxr-xr-x | Source/ThirdParty/brotli/include/brotli/types.h | 90 |
4 files changed, 977 insertions, 0 deletions
diff --git a/Source/ThirdParty/brotli/include/brotli/decode.h b/Source/ThirdParty/brotli/include/brotli/decode.h new file mode 100755 index 000000000..d1d21c42d --- /dev/null +++ b/Source/ThirdParty/brotli/include/brotli/decode.h @@ -0,0 +1,339 @@ +/* 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 \ + \ + /* -16..-17 codes are reserved */ \ + \ + BROTLI_ERROR_CODE(_ERROR_, COMPOUND_DICTIONARY, -18) SEPARATOR \ + 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 +} 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. + * + * @param alloc_func custom memory allocation function + * @param free_func custom memory fee 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_ */ diff --git a/Source/ThirdParty/brotli/include/brotli/encode.h b/Source/ThirdParty/brotli/include/brotli/encode.h new file mode 100755 index 000000000..e4cf18b72 --- /dev/null +++ b/Source/ThirdParty/brotli/include/brotli/encode.h @@ -0,0 +1,402 @@ +/* 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 +/** 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 +} 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. + * + * @param alloc_func custom memory allocation function + * @param free_func custom memory fee 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 not applicable to ::BrotliEncoderCompressStream output, + * because every "flush" adds extra overhead bytes, and some encoder + * settings (e.g. quality @c 0 and @c 1) might imply a "soft flush" + * after every chunk of input. + * + * @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. + * + * @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 decompressed 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_ */ diff --git a/Source/ThirdParty/brotli/include/brotli/port.h b/Source/ThirdParty/brotli/include/brotli/port.h new file mode 100755 index 000000000..16c31d426 --- /dev/null +++ b/Source/ThirdParty/brotli/include/brotli/port.h @@ -0,0 +1,146 @@ +/* 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 features and build options. */ + +#ifndef BROTLI_COMMON_PORT_H_ +#define BROTLI_COMMON_PORT_H_ + +/* Compatibility with non-clang compilers. */ +#ifndef __has_builtin +#define __has_builtin(x) 0 +#endif + +#ifndef __has_attribute +#define __has_attribute(x) 0 +#endif + +#ifndef __has_feature +#define __has_feature(x) 0 +#endif + +#if defined(__GNUC__) && defined(__GNUC_MINOR__) +#define BROTLI_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) +#else +#define BROTLI_GCC_VERSION 0 +#endif + +#if defined(__ICC) +#define BROTLI_ICC_VERSION __ICC +#else +#define BROTLI_ICC_VERSION 0 +#endif + +#if defined(BROTLI_BUILD_MODERN_COMPILER) +#define BROTLI_MODERN_COMPILER 1 +#elif BROTLI_GCC_VERSION >= 304 || BROTLI_ICC_VERSION >= 1600 +#define BROTLI_MODERN_COMPILER 1 +#else +#define BROTLI_MODERN_COMPILER 0 +#endif + +/* Define "BROTLI_PREDICT_TRUE" and "BROTLI_PREDICT_FALSE" macros for capable + compilers. + +To apply compiler hint, enclose the branching condition into macros, like this: + + if (BROTLI_PREDICT_TRUE(zero == 0)) { + // main execution path + } else { + // compiler should place this code outside of main execution path + } + +OR: + + if (BROTLI_PREDICT_FALSE(something_rare_or_unexpected_happens)) { + // compiler should place this code outside of main execution path + } + +*/ +#if BROTLI_MODERN_COMPILER || __has_builtin(__builtin_expect) +#define BROTLI_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1)) +#define BROTLI_PREDICT_FALSE(x) (__builtin_expect(x, 0)) +#else +#define BROTLI_PREDICT_FALSE(x) (x) +#define BROTLI_PREDICT_TRUE(x) (x) +#endif + +#if BROTLI_MODERN_COMPILER || __has_attribute(always_inline) +#define BROTLI_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((always_inline)) +#else +#define BROTLI_ATTRIBUTE_ALWAYS_INLINE +#endif + +#if defined(_WIN32) || defined(__CYGWIN__) +#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN +#elif BROTLI_MODERN_COMPILER || __has_attribute(visibility) +#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN \ + __attribute__ ((visibility ("hidden"))) +#else +#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN +#endif + +#ifndef BROTLI_INTERNAL +#define BROTLI_INTERNAL BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN +#endif + +#if defined(BROTLI_SHARED_COMPILATION) && 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 /* BROTLI_SHARED_COMPILATION && _WIN32 */ +#define BROTLI_COMMON_API +#define BROTLI_DEC_API +#define BROTLI_ENC_API +#endif + +#ifndef _MSC_VER +#if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \ + (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) +#define BROTLI_INLINE inline BROTLI_ATTRIBUTE_ALWAYS_INLINE +#else +#define BROTLI_INLINE +#endif +#else /* _MSC_VER */ +#define BROTLI_INLINE __forceinline +#endif /* _MSC_VER */ + +#if !defined(__cplusplus) && !defined(c_plusplus) && \ + (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) +#define BROTLI_RESTRICT restrict +#elif BROTLI_GCC_VERSION > 295 || defined(__llvm__) +#define BROTLI_RESTRICT __restrict +#else +#define BROTLI_RESTRICT +#endif + +#if BROTLI_MODERN_COMPILER || __has_attribute(noinline) +#define BROTLI_NOINLINE __attribute__((noinline)) +#else +#define BROTLI_NOINLINE +#endif + +#if BROTLI_MODERN_COMPILER || __has_attribute(deprecated) +#define BROTLI_DEPRECATED __attribute__((deprecated)) +#else +#define BROTLI_DEPRECATED +#endif + +#define BROTLI_UNUSED(X) (void)(X) + +#endif /* BROTLI_COMMON_PORT_H_ */ diff --git a/Source/ThirdParty/brotli/include/brotli/types.h b/Source/ThirdParty/brotli/include/brotli/types.h new file mode 100755 index 000000000..fcb271028 --- /dev/null +++ b/Source/ThirdParty/brotli/include/brotli/types.h @@ -0,0 +1,90 @@ +/* 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); + +#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ + !defined(__cplusplus) && !defined(__PGI) +#define BROTLI_ARRAY_PARAM(L) L +#else +#define BROTLI_ARRAY_PARAM(L) +#endif + +#endif /* BROTLI_COMMON_TYPES_H_ */ |