lodepng.c File Reference

#include "lodepng.h"
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>

Go to the source code of this file.

Data Structures
struct	uivector
struct	ucvector
struct	LodePNGBitWriter
struct	LodePNGBitReader
struct	HuffmanTree
struct	BPMNode
struct	BPMLists
struct	Hash
struct	ColorTree

Macros
#define	LODEPNG_INLINE   /* not available */
#define	LODEPNG_RESTRICT   /* not available */
#define	LODEPNG_MAX(a, b)
#define	LODEPNG_MIN(a, b)
#define	CERROR_BREAK(errorvar, code)
#define	ERROR_BREAK(code)
#define	CERROR_RETURN_ERROR(errorvar, code)
#define	CERROR_TRY_RETURN(call)
#define	CERROR_RETURN(errorvar, code)
#define	WRITEBIT(writer, bit)
#define	FIRST_LENGTH_CODE_INDEX   257
#define	LAST_LENGTH_CODE_INDEX   285
#define	NUM_DEFLATE_CODE_SYMBOLS   288
#define	NUM_DISTANCE_SYMBOLS   32
#define	NUM_CODE_LENGTH_CODES   19
#define	FIRSTBITS   9u
#define	INVALIDSYMBOL   65535u
#define	DEFAULT_WINDOWSIZE   2048

Typedefs
typedef struct uivector	uivector
typedef struct ucvector	ucvector
typedef struct HuffmanTree	HuffmanTree
typedef struct BPMNode	BPMNode
typedef struct BPMLists	BPMLists
typedef struct Hash	Hash
typedef struct ColorTree	ColorTree

Functions
unsigned	lodepng_load_file (unsigned char **out, size_t *outsize, const char *filename)
unsigned	lodepng_save_file (const unsigned char *buffer, size_t buffersize, const char *filename)
unsigned	lodepng_huffman_code_lengths (unsigned *lengths, const unsigned *frequencies, size_t numcodes, unsigned maxbitlen)
unsigned	lodepng_inflate (unsigned char **out, size_t *outsize, const unsigned char *in, size_t insize, const LodePNGDecompressSettings *settings)
unsigned	lodepng_deflate (unsigned char **out, size_t *outsize, const unsigned char *in, size_t insize, const LodePNGCompressSettings *settings)
unsigned	lodepng_zlib_decompress (unsigned char **out, size_t *outsize, const unsigned char *in, size_t insize, const LodePNGDecompressSettings *settings)
unsigned	lodepng_zlib_compress (unsigned char **out, size_t *outsize, const unsigned char *in, size_t insize, const LodePNGCompressSettings *settings)
void	lodepng_compress_settings_init (LodePNGCompressSettings *settings)
void	lodepng_decompress_settings_init (LodePNGDecompressSettings *settings)
unsigned	lodepng_crc32 (const unsigned char *data, size_t length)
unsigned	lodepng_chunk_length (const unsigned char *chunk)
void	lodepng_chunk_type (char type[5], const unsigned char *chunk)
unsigned char	lodepng_chunk_type_equals (const unsigned char *chunk, const char *type)
unsigned char	lodepng_chunk_ancillary (const unsigned char *chunk)
unsigned char	lodepng_chunk_private (const unsigned char *chunk)
unsigned char	lodepng_chunk_safetocopy (const unsigned char *chunk)
unsigned char *	lodepng_chunk_data (unsigned char *chunk)
const unsigned char *	lodepng_chunk_data_const (const unsigned char *chunk)
unsigned	lodepng_chunk_check_crc (const unsigned char *chunk)
void	lodepng_chunk_generate_crc (unsigned char *chunk)
unsigned char *	lodepng_chunk_next (unsigned char *chunk, unsigned char *end)
const unsigned char *	lodepng_chunk_next_const (const unsigned char *chunk, const unsigned char *end)
unsigned char *	lodepng_chunk_find (unsigned char *chunk, unsigned char *end, const char type[5])
const unsigned char *	lodepng_chunk_find_const (const unsigned char *chunk, const unsigned char *end, const char type[5])
unsigned	lodepng_chunk_append (unsigned char **out, size_t *outsize, const unsigned char *chunk)
unsigned	lodepng_chunk_create (unsigned char **out, size_t *outsize, size_t length, const char *type, const unsigned char *data)
void	lodepng_color_mode_init (LodePNGColorMode *info)
void	lodepng_color_mode_cleanup (LodePNGColorMode *info)
unsigned	lodepng_color_mode_copy (LodePNGColorMode *dest, const LodePNGColorMode *source)
LodePNGColorMode	lodepng_color_mode_make (LodePNGColorType colortype, unsigned bitdepth)
void	lodepng_palette_clear (LodePNGColorMode *info)
unsigned	lodepng_palette_add (LodePNGColorMode *info, unsigned char r, unsigned char g, unsigned char b, unsigned char a)
unsigned	lodepng_get_bpp (const LodePNGColorMode *info)
unsigned	lodepng_get_channels (const LodePNGColorMode *info)
unsigned	lodepng_is_greyscale_type (const LodePNGColorMode *info)
unsigned	lodepng_is_alpha_type (const LodePNGColorMode *info)
unsigned	lodepng_is_palette_type (const LodePNGColorMode *info)
unsigned	lodepng_has_palette_alpha (const LodePNGColorMode *info)
unsigned	lodepng_can_have_alpha (const LodePNGColorMode *info)
size_t	lodepng_get_raw_size (unsigned w, unsigned h, const LodePNGColorMode *color)
unsigned	lodepng_add_text (LodePNGInfo *info, const char *key, const char *str)
void	lodepng_clear_text (LodePNGInfo *info)
void	lodepng_clear_itext (LodePNGInfo *info)
unsigned	lodepng_add_itext (LodePNGInfo *info, const char *key, const char *langtag, const char *transkey, const char *str)
unsigned	lodepng_set_icc (LodePNGInfo *info, const char *name, const unsigned char *profile, unsigned profile_size)
void	lodepng_clear_icc (LodePNGInfo *info)
void	lodepng_info_init (LodePNGInfo *info)
void	lodepng_info_cleanup (LodePNGInfo *info)
unsigned	lodepng_info_copy (LodePNGInfo *dest, const LodePNGInfo *source)
unsigned	lodepng_convert (unsigned char *out, const unsigned char *in, const LodePNGColorMode *mode_out, const LodePNGColorMode *mode_in, unsigned w, unsigned h)
unsigned	lodepng_convert_rgb (unsigned *r_out, unsigned *g_out, unsigned *b_out, unsigned r_in, unsigned g_in, unsigned b_in, const LodePNGColorMode *mode_out, const LodePNGColorMode *mode_in)
void	lodepng_color_stats_init (LodePNGColorStats *stats)
unsigned	lodepng_compute_color_stats (LodePNGColorStats *stats, const unsigned char *in, unsigned w, unsigned h, const LodePNGColorMode *mode_in)
unsigned	lodepng_inspect (unsigned *w, unsigned *h, LodePNGState *state, const unsigned char *in, size_t insize)
unsigned	lodepng_inspect_chunk (LodePNGState *state, size_t pos, const unsigned char *in, size_t insize)
unsigned	lodepng_decode (unsigned char **out, unsigned *w, unsigned *h, LodePNGState *state, const unsigned char *in, size_t insize)
unsigned	lodepng_decode_memory (unsigned char **out, unsigned *w, unsigned *h, const unsigned char *in, size_t insize, LodePNGColorType colortype, unsigned bitdepth)
unsigned	lodepng_decode32 (unsigned char **out, unsigned *w, unsigned *h, const unsigned char *in, size_t insize)
unsigned	lodepng_decode24 (unsigned char **out, unsigned *w, unsigned *h, const unsigned char *in, size_t insize)
unsigned	lodepng_decode_file (unsigned char **out, unsigned *w, unsigned *h, const char *filename, LodePNGColorType colortype, unsigned bitdepth)
unsigned	lodepng_decode32_file (unsigned char **out, unsigned *w, unsigned *h, const char *filename)
unsigned	lodepng_decode24_file (unsigned char **out, unsigned *w, unsigned *h, const char *filename)
void	lodepng_decoder_settings_init (LodePNGDecoderSettings *settings)
void	lodepng_state_init (LodePNGState *state)
void	lodepng_state_cleanup (LodePNGState *state)
void	lodepng_state_copy (LodePNGState *dest, const LodePNGState *source)
unsigned	lodepng_encode (unsigned char **out, size_t *outsize, const unsigned char *image, unsigned w, unsigned h, LodePNGState *state)
unsigned	lodepng_encode_memory (unsigned char **out, size_t *outsize, const unsigned char *image, unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth)
unsigned	lodepng_encode32 (unsigned char **out, size_t *outsize, const unsigned char *image, unsigned w, unsigned h)
unsigned	lodepng_encode24 (unsigned char **out, size_t *outsize, const unsigned char *image, unsigned w, unsigned h)
unsigned	lodepng_encode_file (const char *filename, const unsigned char *image, unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth)
unsigned	lodepng_encode32_file (const char *filename, const unsigned char *image, unsigned w, unsigned h)
unsigned	lodepng_encode24_file (const char *filename, const unsigned char *image, unsigned w, unsigned h)
void	lodepng_encoder_settings_init (LodePNGEncoderSettings *settings)
const char *	lodepng_error_text (unsigned code)

Variables
const char *	LODEPNG_VERSION_STRING = "20230410"
const LodePNGCompressSettings	lodepng_default_compress_settings = {2, 1, DEFAULT_WINDOWSIZE, 3, 128, 1, 0, 0, 0}
const LodePNGDecompressSettings	lodepng_default_decompress_settings = {0, 0, 0, 0, 0, 0}

Macro Definition Documentation

CERROR_BREAK

#define CERROR_BREAK	(		errorvar,
			code )

Value:

  {\
  errorvar = code;\
  break;\
}

Definition at line 223 of file lodepng.c.

CERROR_RETURN

#define CERROR_RETURN	(		errorvar,
			code )

Value:

  {\
  errorvar = code;\
  return;\
}

Definition at line 244 of file lodepng.c.

CERROR_RETURN_ERROR

#define CERROR_RETURN_ERROR	(		errorvar,
			code )

Value:

  {\
  errorvar = code;\
  return code;\
}

Definition at line 232 of file lodepng.c.

CERROR_TRY_RETURN

#define CERROR_TRY_RETURN

(

call

)

Value:

  {\
  unsigned error = call;\
  if(error) return error;\
}

Definition at line 238 of file lodepng.c.

DEFAULT_WINDOWSIZE

#define DEFAULT_WINDOWSIZE   2048

Definition at line 2371 of file lodepng.c.

ERROR_BREAK

#define ERROR_BREAK

(

code

)

Value:

CERROR_BREAK(error, code)

Definition at line 229 of file lodepng.c.

FIRST_LENGTH_CODE_INDEX

#define FIRST_LENGTH_CODE_INDEX   257

Definition at line 638 of file lodepng.c.

FIRSTBITS

#define FIRSTBITS   9u

Definition at line 703 of file lodepng.c.

INVALIDSYMBOL

#define INVALIDSYMBOL   65535u

Definition at line 707 of file lodepng.c.

LAST_LENGTH_CODE_INDEX

#define LAST_LENGTH_CODE_INDEX   285

Definition at line 639 of file lodepng.c.

LODEPNG_INLINE

#define LODEPNG_INLINE   /* not available */

Definition at line 104 of file lodepng.c.

LODEPNG_MAX

#define LODEPNG_MAX	(		a,
			b )

Value:

(((a) > (b)) ? (a) : (b))

Definition at line 185 of file lodepng.c.

LODEPNG_MIN

#define LODEPNG_MIN	(		a,
			b )

Value:

(((a) < (b)) ? (a) : (b))

Definition at line 186 of file lodepng.c.

LODEPNG_RESTRICT

#define LODEPNG_RESTRICT   /* not available */

Definition at line 113 of file lodepng.c.

NUM_CODE_LENGTH_CODES

#define NUM_CODE_LENGTH_CODES   19

Definition at line 645 of file lodepng.c.

NUM_DEFLATE_CODE_SYMBOLS

#define NUM_DEFLATE_CODE_SYMBOLS   288

Definition at line 641 of file lodepng.c.

NUM_DISTANCE_SYMBOLS

#define NUM_DISTANCE_SYMBOLS   32

Definition at line 643 of file lodepng.c.

WRITEBIT

#define WRITEBIT	(		writer,
			bit )

Value:

  {\
  /* append new byte */\
  if(((writer->bp) & 7u) == 0) {\
    if(!ucvector_resize(writer->data, writer->data->size + 1)) return;\
    writer->data->data[writer->data->size - 1] = 0;\
  }\
  (writer->data->data[writer->data->size - 1]) |= (bit << ((writer->bp) & 7u));\
  ++writer->bp;\
}

Definition at line 471 of file lodepng.c.

Typedef Documentation

BPMLists

typedef struct BPMLists BPMLists

BPMNode

typedef struct BPMNode BPMNode

ColorTree

typedef struct ColorTree ColorTree

Definition at line 3422 of file lodepng.c.

Hash

typedef struct Hash Hash

HuffmanTree

typedef struct HuffmanTree HuffmanTree

ucvector

typedef struct ucvector ucvector

uivector

typedef struct uivector uivector

Function Documentation

lodepng_add_itext()

unsigned lodepng_add_itext	(	LodePNGInfo *	info,
		const char *	key,
		const char *	langtag,
		const char *	transkey,
		const char *	str )

Definition at line 3313 of file lodepng.c.

lodepng_add_text()

unsigned lodepng_add_text	(	LodePNGInfo *	info,
		const char *	key,
		const char *	str )

Definition at line 3238 of file lodepng.c.

lodepng_can_have_alpha()

unsigned lodepng_can_have_alpha

(

const LodePNGColorMode *

info

)

Definition at line 3101 of file lodepng.c.

lodepng_chunk_ancillary()

unsigned char lodepng_chunk_ancillary

(

const unsigned char *

chunk

)

Definition at line 2797 of file lodepng.c.

lodepng_chunk_append()

unsigned lodepng_chunk_append	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	chunk )

Definition at line 2878 of file lodepng.c.

lodepng_chunk_check_crc()

unsigned lodepng_chunk_check_crc

(

const unsigned char *

chunk

)

Definition at line 2817 of file lodepng.c.

lodepng_chunk_create()

unsigned lodepng_chunk_create	(	unsigned char **	out,
		size_t *	outsize,
		size_t	length,
		const char *	type,
		const unsigned char *	data )

Definition at line 2935 of file lodepng.c.

lodepng_chunk_data()

unsigned char * lodepng_chunk_data

(

unsigned char *

chunk

)

Definition at line 2809 of file lodepng.c.

lodepng_chunk_data_const()

const unsigned char * lodepng_chunk_data_const

(

const unsigned char *

chunk

)

Definition at line 2813 of file lodepng.c.

lodepng_chunk_find()

unsigned char * lodepng_chunk_find	(	unsigned char *	chunk,
		unsigned char *	end,
		const char	type[5] )

Definition at line 2862 of file lodepng.c.

lodepng_chunk_find_const()

const unsigned char * lodepng_chunk_find_const	(	const unsigned char *	chunk,
		const unsigned char *	end,
		const char	type[5] )

Definition at line 2870 of file lodepng.c.

lodepng_chunk_generate_crc()

void lodepng_chunk_generate_crc

(

unsigned char *

chunk

)

Definition at line 2826 of file lodepng.c.

lodepng_chunk_length()

unsigned lodepng_chunk_length

(

const unsigned char *

chunk

)

Definition at line 2782 of file lodepng.c.

lodepng_chunk_next()

unsigned char * lodepng_chunk_next	(	unsigned char *	chunk,
		unsigned char *	end )

Definition at line 2832 of file lodepng.c.

lodepng_chunk_next_const()

const unsigned char * lodepng_chunk_next_const	(	const unsigned char *	chunk,
		const unsigned char *	end )

Definition at line 2847 of file lodepng.c.

lodepng_chunk_private()

unsigned char lodepng_chunk_private

(

const unsigned char *

chunk

)

Definition at line 2801 of file lodepng.c.

lodepng_chunk_safetocopy()

unsigned char lodepng_chunk_safetocopy

(

const unsigned char *

chunk

)

Definition at line 2805 of file lodepng.c.

lodepng_chunk_type()

void lodepng_chunk_type	(	char	type[5],
		const unsigned char *	chunk )

Definition at line 2786 of file lodepng.c.

lodepng_chunk_type_equals()

unsigned char lodepng_chunk_type_equals	(	const unsigned char *	chunk,
		const char *	type )

Definition at line 2792 of file lodepng.c.

lodepng_clear_icc()

void lodepng_clear_icc

(

LodePNGInfo *

info

)

Definition at line 3340 of file lodepng.c.

lodepng_clear_itext()

void lodepng_clear_itext

(

LodePNGInfo *

info

)

Definition at line 3284 of file lodepng.c.

lodepng_clear_text()

void lodepng_clear_text

(

LodePNGInfo *

info

)

Definition at line 3242 of file lodepng.c.

lodepng_color_mode_cleanup()

void lodepng_color_mode_cleanup

(

LodePNGColorMode *

info

)

Definition at line 3009 of file lodepng.c.

lodepng_color_mode_copy()

unsigned lodepng_color_mode_copy	(	LodePNGColorMode *	dest,
		const LodePNGColorMode *	source )

Definition at line 3013 of file lodepng.c.

lodepng_color_mode_init()

void lodepng_color_mode_init

(

LodePNGColorMode *

info

)

Definition at line 2982 of file lodepng.c.

lodepng_color_mode_make()

LodePNGColorMode lodepng_color_mode_make	(	LodePNGColorType	colortype,
		unsigned	bitdepth )

Definition at line 3024 of file lodepng.c.

lodepng_color_stats_init()

void lodepng_color_stats_init

(

LodePNGColorStats *

stats

)

Definition at line 3977 of file lodepng.c.

lodepng_compress_settings_init()

void lodepng_compress_settings_init

(

LodePNGCompressSettings *

settings

)

Definition at line 2373 of file lodepng.c.

lodepng_compute_color_stats()

unsigned lodepng_compute_color_stats	(	LodePNGColorStats *	stats,
		const unsigned char *	in,
		unsigned	w,
		unsigned	h,
		const LodePNGColorMode *	mode_in )

Definition at line 4012 of file lodepng.c.

lodepng_convert()

unsigned lodepng_convert	(	unsigned char *	out,
		const unsigned char *	in,
		const LodePNGColorMode *	mode_out,
		const LodePNGColorMode *	mode_in,
		unsigned	w,
		unsigned	h )

Definition at line 3844 of file lodepng.c.

lodepng_convert_rgb()

unsigned lodepng_convert_rgb	(	unsigned *	r_out,
		unsigned *	g_out,
		unsigned *	b_out,
		unsigned	r_in,
		unsigned	g_in,
		unsigned	b_in,
		const LodePNGColorMode *	mode_out,
		const LodePNGColorMode *	mode_in )

Definition at line 3925 of file lodepng.c.

lodepng_crc32()

unsigned lodepng_crc32	(	const unsigned char *	data,
		size_t	length )

Definition at line 2704 of file lodepng.c.

lodepng_decode()

unsigned lodepng_decode	(	unsigned char **	out,
		unsigned *	w,
		unsigned *	h,
		LodePNGState *	state,
		const unsigned char *	in,
		size_t	insize )

Definition at line 5411 of file lodepng.c.

lodepng_decode24()

unsigned lodepng_decode24	(	unsigned char **	out,
		unsigned *	w,
		unsigned *	h,
		const unsigned char *	in,
		size_t	insize )

Definition at line 5469 of file lodepng.c.

lodepng_decode24_file()

unsigned lodepng_decode24_file	(	unsigned char **	out,
		unsigned *	w,
		unsigned *	h,
		const char *	filename )

Definition at line 5492 of file lodepng.c.

lodepng_decode32()

unsigned lodepng_decode32	(	unsigned char **	out,
		unsigned *	w,
		unsigned *	h,
		const unsigned char *	in,
		size_t	insize )

Definition at line 5465 of file lodepng.c.

lodepng_decode32_file()

unsigned lodepng_decode32_file	(	unsigned char **	out,
		unsigned *	w,
		unsigned *	h,
		const char *	filename )

Definition at line 5488 of file lodepng.c.

lodepng_decode_file()

unsigned lodepng_decode_file	(	unsigned char **	out,
		unsigned *	w,
		unsigned *	h,
		const char *	filename,
		LodePNGColorType	colortype,
		unsigned	bitdepth )

Definition at line 5474 of file lodepng.c.

lodepng_decode_memory()

unsigned lodepng_decode_memory	(	unsigned char **	out,
		unsigned *	w,
		unsigned *	h,
		const unsigned char *	in,
		size_t	insize,
		LodePNGColorType	colortype,
		unsigned	bitdepth )

Definition at line 5448 of file lodepng.c.

lodepng_decoder_settings_init()

void lodepng_decoder_settings_init

(

LodePNGDecoderSettings *

settings

)

Definition at line 5497 of file lodepng.c.

lodepng_decompress_settings_init()

void lodepng_decompress_settings_init

(

LodePNGDecompressSettings *

settings

)

Definition at line 2394 of file lodepng.c.

lodepng_deflate()

unsigned lodepng_deflate	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	in,
		size_t	insize,
		const LodePNGCompressSettings *	settings )

Definition at line 2155 of file lodepng.c.

lodepng_encode()

unsigned lodepng_encode	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	image,
		unsigned	w,
		unsigned	h,
		LodePNGState *	state )

Definition at line 6315 of file lodepng.c.

lodepng_encode24()

unsigned lodepng_encode24	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	image,
		unsigned	w,
		unsigned	h )

Definition at line 6669 of file lodepng.c.

lodepng_encode24_file()

unsigned lodepng_encode24_file	(	const char *	filename,
		const unsigned char *	image,
		unsigned	w,
		unsigned	h )

Definition at line 6688 of file lodepng.c.

lodepng_encode32()

unsigned lodepng_encode32	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	image,
		unsigned	w,
		unsigned	h )

Definition at line 6665 of file lodepng.c.

lodepng_encode32_file()

unsigned lodepng_encode32_file	(	const char *	filename,
		const unsigned char *	image,
		unsigned	w,
		unsigned	h )

Definition at line 6684 of file lodepng.c.

lodepng_encode_file()

unsigned lodepng_encode_file	(	const char *	filename,
		const unsigned char *	image,
		unsigned	w,
		unsigned	h,
		LodePNGColorType	colortype,
		unsigned	bitdepth )

Definition at line 6674 of file lodepng.c.

lodepng_encode_memory()

unsigned lodepng_encode_memory	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	image,
		unsigned	w,
		unsigned	h,
		LodePNGColorType	colortype,
		unsigned	bitdepth )

Definition at line 6650 of file lodepng.c.

lodepng_encoder_settings_init()

void lodepng_encoder_settings_init

(

LodePNGEncoderSettings *

settings

)

Definition at line 6693 of file lodepng.c.

lodepng_error_text()

const char * lodepng_error_text

(

unsigned

code

)

Definition at line 6714 of file lodepng.c.

lodepng_get_bpp()

unsigned lodepng_get_bpp

(

const LodePNGColorMode *

info

)

Definition at line 3073 of file lodepng.c.

lodepng_get_channels()

unsigned lodepng_get_channels

(

const LodePNGColorMode *

info

)

Definition at line 3077 of file lodepng.c.

lodepng_get_raw_size()

size_t lodepng_get_raw_size	(	unsigned	w,
		unsigned	h,
		const LodePNGColorMode *	color )

Definition at line 3113 of file lodepng.c.

lodepng_has_palette_alpha()

unsigned lodepng_has_palette_alpha

(

const LodePNGColorMode *

info

)

Definition at line 3093 of file lodepng.c.

lodepng_huffman_code_lengths()

unsigned lodepng_huffman_code_lengths	(	unsigned *	lengths,
		const unsigned *	frequencies,
		size_t	numcodes,
		unsigned	maxbitlen )

Definition at line 988 of file lodepng.c.

lodepng_inflate()

unsigned lodepng_inflate	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	in,
		size_t	insize,
		const LodePNGDecompressSettings *	settings )

Definition at line 1453 of file lodepng.c.

lodepng_info_cleanup()

void lodepng_info_cleanup

(

LodePNGInfo *

info

)

Definition at line 3378 of file lodepng.c.

lodepng_info_copy()

unsigned lodepng_info_copy	(	LodePNGInfo *	dest,
		const LodePNGInfo *	source )

Definition at line 3390 of file lodepng.c.

lodepng_info_init()

void lodepng_info_init

(

LodePNGInfo *

info

)

Definition at line 3349 of file lodepng.c.

lodepng_inspect()

unsigned lodepng_inspect	(	unsigned *	w,
		unsigned *	h,
		LodePNGState *	state,
		const unsigned char *	in,
		size_t	insize )

Definition at line 4356 of file lodepng.c.

lodepng_inspect_chunk()

unsigned lodepng_inspect_chunk	(	LodePNGState *	state,
		size_t	pos,
		const unsigned char *	in,
		size_t	insize )

Definition at line 5158 of file lodepng.c.

lodepng_is_alpha_type()

unsigned lodepng_is_alpha_type

(

const LodePNGColorMode *

info

)

Definition at line 3085 of file lodepng.c.

lodepng_is_greyscale_type()

unsigned lodepng_is_greyscale_type

(

const LodePNGColorMode *

info

)

Definition at line 3081 of file lodepng.c.

lodepng_is_palette_type()

unsigned lodepng_is_palette_type

(

const LodePNGColorMode *

info

)

Definition at line 3089 of file lodepng.c.

lodepng_load_file()

unsigned lodepng_load_file	(	unsigned char **	out,
		size_t *	outsize,
		const char *	filename )

Definition at line 428 of file lodepng.c.

lodepng_palette_add()

unsigned lodepng_palette_add	(	LodePNGColorMode *	info,
		unsigned char	r,
		unsigned char	g,
		unsigned char	b,
		unsigned char	a )

Definition at line 3055 of file lodepng.c.

lodepng_palette_clear()

void lodepng_palette_clear

(

LodePNGColorMode *

info

)

Definition at line 3049 of file lodepng.c.

lodepng_save_file()

unsigned lodepng_save_file	(	const unsigned char *	buffer,
		size_t	buffersize,
		const char *	filename )

Definition at line 440 of file lodepng.c.

lodepng_set_icc()

unsigned lodepng_set_icc	(	LodePNGInfo *	info,
		const char *	name,
		const unsigned char *	profile,
		unsigned	profile_size )

Definition at line 3333 of file lodepng.c.

lodepng_state_cleanup()

void lodepng_state_cleanup

(

LodePNGState *

state

)

Definition at line 5527 of file lodepng.c.

lodepng_state_copy()

void lodepng_state_copy	(	LodePNGState *	dest,
		const LodePNGState *	source )

Definition at line 5532 of file lodepng.c.

lodepng_state_init()

void lodepng_state_init

(

LodePNGState *

state

)

Definition at line 5515 of file lodepng.c.

lodepng_zlib_compress()

unsigned lodepng_zlib_compress	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	in,
		size_t	insize,
		const LodePNGCompressSettings *	settings )

Definition at line 2295 of file lodepng.c.

lodepng_zlib_decompress()

unsigned lodepng_zlib_decompress	(	unsigned char **	out,
		size_t *	outsize,
		const unsigned char *	in,
		size_t	insize,
		const LodePNGDecompressSettings *	settings )

Definition at line 2256 of file lodepng.c.

Variable Documentation

lodepng_default_compress_settings

const LodePNGCompressSettings lodepng_default_compress_settings = {2, 1, DEFAULT_WINDOWSIZE, 3, 128, 1, 0, 0, 0}

Definition at line 2387 of file lodepng.c.

lodepng_default_decompress_settings

const LodePNGDecompressSettings lodepng_default_decompress_settings = {0, 0, 0, 0, 0, 0}

Definition at line 2404 of file lodepng.c.

LODEPNG_VERSION_STRING

const char* LODEPNG_VERSION_STRING = "20230410"

Definition at line 47 of file lodepng.c.