#include "mupdf/fitz/system.h"
#include "mupdf/fitz/buffer.h"
#include "mupdf/fitz/pixmap.h"

Include dependency graph for compress.h:

This graph shows which files directly or indirectly include this file:

Enumerations
enum	fz_deflate_level { FZ_DEFLATE_NONE = 0 , FZ_DEFLATE_BEST_SPEED = 1 , FZ_DEFLATE_BEST = 9 , FZ_DEFLATE_DEFAULT = -1 }
enum	fz_brotli_level { FZ_BROTLI_NONE = 0 , FZ_BROTLI_BEST_SPEED = 1 , FZ_BROTLI_BEST = 11 , FZ_BROTLI_DEFAULT = 6 }

Functions
size_t	fz_deflate_bound (fz_context *ctx, size_t size)
void	fz_deflate (fz_context ctx, unsigned char dest, size_t compressed_length, const unsigned char source, size_t source_length, fz_deflate_level level)
unsigned char *	fz_new_deflated_data (fz_context ctx, size_t compressed_length, const unsigned char *source, size_t source_length, fz_deflate_level level)
unsigned char *	fz_new_deflated_data_from_buffer (fz_context ctx, size_t compressed_length, fz_buffer *buffer, fz_deflate_level level)
size_t	fz_brotli_bound (fz_context *ctx, size_t size)
void	fz_compress_brotli (fz_context ctx, unsigned char dest, size_t compressed_length, const unsigned char source, size_t source_length, fz_brotli_level level)
unsigned char *	fz_new_brotli_data (fz_context ctx, size_t compressed_length, const unsigned char *source, size_t source_length, fz_brotli_level level)
unsigned char *	fz_new_brotli_data_from_buffer (fz_context ctx, size_t compressed_length, fz_buffer *buffer, fz_brotli_level level)
fz_buffer *	fz_compress_ccitt_fax_g3 (fz_context ctx, const unsigned char data, int columns, int rows, ptrdiff_t stride)
fz_buffer *	fz_compress_ccitt_fax_g4 (fz_context ctx, const unsigned char data, int columns, int rows, ptrdiff_t stride)

Enumeration Type Documentation

◆ fz_brotli_level

enum fz_brotli_level

Enumerator
FZ_BROTLI_NONE
FZ_BROTLI_BEST_SPEED
FZ_BROTLI_BEST
FZ_BROTLI_DEFAULT

◆ fz_deflate_level

enum fz_deflate_level

Enumerator
FZ_DEFLATE_NONE
FZ_DEFLATE_BEST_SPEED
FZ_DEFLATE_BEST
FZ_DEFLATE_DEFAULT

Function Documentation

◆ fz_brotli_bound()

size_t fz_brotli_bound	(	fz_context *	ctx,
		size_t	size )

Returns the upper bound on the size of brotli compressed data of length size.

◆ fz_compress_brotli()

void fz_compress_brotli	(	fz_context *	ctx,
		unsigned char *	dest,
		size_t *	compressed_length,
		const unsigned char *	source,
		size_t	source_length,
		fz_brotli_level	level )

Compress source_length bytes of data starting at source, into a buffer of length *destLen, starting at dest. compressed_length will be updated on exit to contain the size actually used.

◆ fz_compress_ccitt_fax_g3()

fz_buffer * fz_compress_ccitt_fax_g3	(	fz_context *	ctx,
		const unsigned char *	data,
		int	columns,
		int	rows,
		ptrdiff_t	stride )

Compress bitmap data as CCITT Group 3 1D fax image. Creates a stream assuming the default PDF parameters, except the number of columns.

◆ fz_compress_ccitt_fax_g4()

fz_buffer * fz_compress_ccitt_fax_g4	(	fz_context *	ctx,
		const unsigned char *	data,
		int	columns,
		int	rows,
		ptrdiff_t	stride )

Compress bitmap data as CCITT Group 4 2D fax image. Creates a stream assuming the default PDF parameters, except K=-1 and the number of columns.

◆ fz_deflate()

void fz_deflate	(	fz_context *	ctx,
		unsigned char *	dest,
		size_t *	compressed_length,
		const unsigned char *	source,
		size_t	source_length,
		fz_deflate_level	level )

Compress source_length bytes of data starting at source, into a buffer of length *compressed_length, starting at dest. *compressed_length will be updated on exit to contain the size actually used.

◆ fz_deflate_bound()

size_t fz_deflate_bound	(	fz_context *	ctx,
		size_t	size )

Returns the upper bound on the size of flated data of length size.

◆ fz_new_brotli_data()

unsigned char * fz_new_brotli_data	(	fz_context *	ctx,
		size_t *	compressed_length,
		const unsigned char *	source,
		size_t	source_length,
		fz_brotli_level	level )

Compress source_length bytes of data starting at source, into a new memory block malloced for that purpose. compressed_length is updated on exit to contain the size used. Ownership of the block is returned from this function, and the caller is therefore responsible for freeing it. The block may be considerably larger than is actually required. The caller is free to fz_realloc it down if it wants to.

◆ fz_new_brotli_data_from_buffer()

unsigned char * fz_new_brotli_data_from_buffer	(	fz_context *	ctx,
		size_t *	compressed_length,
		fz_buffer *	buffer,
		fz_brotli_level	level )

Compress the contents of a fz_buffer into a new block malloced for that purpose. *compressed_length is updated on exit to contain the size used. Ownership of the block is returned from this function, and the caller is therefore responsible for freeing it. The block may be considerably larger than is actually required. The caller is free to fz_realloc it down if it wants to.

◆ fz_new_deflated_data()

unsigned char * fz_new_deflated_data	(	fz_context *	ctx,
		size_t *	compressed_length,
		const unsigned char *	source,
		size_t	source_length,
		fz_deflate_level	level )