lodepng.h File Reference

#include <string.h>

Include dependency graph for lodepng.h:

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

Go to the source code of this file.

Classes
struct	LodePNGColorMode
struct	LodePNGCompressSettings
struct	LodePNGDecoderSettings
struct	LodePNGDecompressSettings
struct	LodePNGEncoderSettings
struct	LodePNGInfo
struct	LodePNGState
struct	LodePNGTime
Defines
#define	LODEPNG_COMPILE_ALLOCATORS
#define	LODEPNG_COMPILE_ANCILLARY_CHUNKS
#define	LODEPNG_COMPILE_DECODER
#define	LODEPNG_COMPILE_DISK
#define	LODEPNG_COMPILE_ENCODER
#define	LODEPNG_COMPILE_ERROR_TEXT
#define	LODEPNG_COMPILE_PNG
#define	LODEPNG_COMPILE_ZLIB
Typedefs
typedef enum LodePNGAutoConvert	LodePNGAutoConvert
typedef struct LodePNGColorMode	LodePNGColorMode
typedef enum LodePNGColorType	LodePNGColorType
typedef struct LodePNGCompressSettings	LodePNGCompressSettings
typedef struct LodePNGDecoderSettings	LodePNGDecoderSettings
typedef struct LodePNGDecompressSettings	LodePNGDecompressSettings
typedef struct LodePNGEncoderSettings	LodePNGEncoderSettings
typedef enum LodePNGFilterStrategy	LodePNGFilterStrategy
typedef struct LodePNGInfo	LodePNGInfo
typedef struct LodePNGState	LodePNGState
typedef struct LodePNGTime	LodePNGTime
Enumerations
enum	LodePNGAutoConvert {   LAC_NO, LAC_ALPHA, LAC_AUTO, LAC_AUTO_NO_NIBBLES,   LAC_AUTO_NO_PALETTE, LAC_AUTO_NO_NIBBLES_NO_PALETTE }
enum	LodePNGColorType {   LCT_GREY = 0, LCT_RGB = 2, LCT_PALETTE = 3, LCT_GREY_ALPHA = 4,   LCT_RGBA = 6 }
enum	LodePNGFilterStrategy {   LFS_ZERO, LFS_MINSUM, LFS_ENTROPY, LFS_BRUTE_FORCE,   LFS_PREDEFINED }
Functions
unsigned	lodepng_add_itext (LodePNGInfo *info, const char *key, const char *langtag, const char *transkey, const char *str)
unsigned	lodepng_add_text (LodePNGInfo *info, const char *key, const char *str)
unsigned	lodepng_can_have_alpha (const LodePNGColorMode *info)
unsigned char	lodepng_chunk_ancillary (const unsigned char *chunk)
unsigned	lodepng_chunk_append (unsigned char **out, size_t *outlength, const unsigned char *chunk)
unsigned	lodepng_chunk_check_crc (const unsigned char *chunk)
unsigned	lodepng_chunk_create (unsigned char **out, size_t *outlength, unsigned length, const char *type, const unsigned char *data)
unsigned char *	lodepng_chunk_data (unsigned char *chunk)
const unsigned char *	lodepng_chunk_data_const (const unsigned char *chunk)
void	lodepng_chunk_generate_crc (unsigned char *chunk)
unsigned	lodepng_chunk_length (const unsigned char *chunk)
unsigned char *	lodepng_chunk_next (unsigned char *chunk)
const unsigned char *	lodepng_chunk_next_const (const unsigned char *chunk)
unsigned char	lodepng_chunk_private (const unsigned char *chunk)
unsigned char	lodepng_chunk_safetocopy (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)
void	lodepng_clear_itext (LodePNGInfo *info)
void	lodepng_clear_text (LodePNGInfo *info)
void	lodepng_color_mode_cleanup (LodePNGColorMode *info)
unsigned	lodepng_color_mode_copy (LodePNGColorMode *dest, const LodePNGColorMode *source)
void	lodepng_color_mode_init (LodePNGColorMode *info)
void	lodepng_compress_settings_init (LodePNGCompressSettings *settings)
unsigned	lodepng_convert (unsigned char *out, const unsigned char *in, LodePNGColorMode *mode_out, LodePNGColorMode *mode_in, unsigned w, unsigned h, unsigned fix_png)
unsigned	lodepng_crc32 (const unsigned char *buf, size_t len)
unsigned	lodepng_decode (unsigned char **out, unsigned *w, unsigned *h, LodePNGState *state, 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_decode24_file (unsigned char **out, unsigned *w, unsigned *h, const char *filename)
unsigned	lodepng_decode32 (unsigned char **out, unsigned *w, unsigned *h, const unsigned char *in, size_t insize)
unsigned	lodepng_decode32_file (unsigned char **out, unsigned *w, unsigned *h, const char *filename)
unsigned	lodepng_decode_file (unsigned char **out, unsigned *w, unsigned *h, const char *filename, LodePNGColorType colortype, unsigned bitdepth)
unsigned	lodepng_decode_memory (unsigned char **out, unsigned *w, unsigned *h, const unsigned char *in, size_t insize, LodePNGColorType colortype, unsigned bitdepth)
void	lodepng_decoder_settings_init (LodePNGDecoderSettings *settings)
void	lodepng_decompress_settings_init (LodePNGDecompressSettings *settings)
unsigned	lodepng_deflate (unsigned char **out, size_t *outsize, const unsigned char *in, size_t insize, const LodePNGCompressSettings *settings)
unsigned	lodepng_encode (unsigned char **out, size_t *outsize, const unsigned char *image, unsigned w, unsigned h, LodePNGState *state)
unsigned	lodepng_encode24 (unsigned char **out, size_t *outsize, const unsigned char *image, unsigned w, unsigned h)
unsigned	lodepng_encode24_file (const char *filename, const unsigned char *image, unsigned w, unsigned h)
unsigned	lodepng_encode32 (unsigned char **out, size_t *outsize, const unsigned char *image, unsigned w, unsigned h)
unsigned	lodepng_encode32_file (const char *filename, 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_encode_memory (unsigned char **out, size_t *outsize, const unsigned char *image, unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth)
void	lodepng_encoder_settings_init (LodePNGEncoderSettings *settings)
const char *	lodepng_error_text (unsigned code)
unsigned	lodepng_get_bpp (const LodePNGColorMode *info)
unsigned	lodepng_get_channels (const LodePNGColorMode *info)
size_t	lodepng_get_raw_size (unsigned w, unsigned h, const LodePNGColorMode *color)
unsigned	lodepng_has_palette_alpha (const LodePNGColorMode *info)
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)
void	lodepng_info_cleanup (LodePNGInfo *info)
unsigned	lodepng_info_copy (LodePNGInfo *dest, const LodePNGInfo *source)
void	lodepng_info_init (LodePNGInfo *info)
unsigned	lodepng_inspect (unsigned *w, unsigned *h, LodePNGState *state, const unsigned char *in, size_t insize)
unsigned	lodepng_is_alpha_type (const LodePNGColorMode *info)
unsigned	lodepng_is_greyscale_type (const LodePNGColorMode *info)
unsigned	lodepng_is_palette_type (const LodePNGColorMode *info)
unsigned	lodepng_load_file (unsigned char **out, size_t *outsize, const char *filename)
unsigned	lodepng_palette_add (LodePNGColorMode *info, unsigned char r, unsigned char g, unsigned char b, unsigned char a)
void	lodepng_palette_clear (LodePNGColorMode *info)
unsigned	lodepng_save_file (const unsigned char *buffer, size_t buffersize, const char *filename)
void	lodepng_state_cleanup (LodePNGState *state)
void	lodepng_state_copy (LodePNGState *dest, const LodePNGState *source)
void	lodepng_state_init (LodePNGState *state)
unsigned	lodepng_zlib_compress (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)
Variables
const LodePNGCompressSettings	lodepng_default_compress_settings
const LodePNGDecompressSettings	lodepng_default_decompress_settings

---

Define Documentation

#define LODEPNG_COMPILE_ALLOCATORS

Definition at line 76 of file lodepng.h.

#define LODEPNG_COMPILE_ANCILLARY_CHUNKS

Definition at line 66 of file lodepng.h.

#define LODEPNG_COMPILE_DECODER

Definition at line 54 of file lodepng.h.

#define LODEPNG_COMPILE_DISK

Definition at line 62 of file lodepng.h.

#define LODEPNG_COMPILE_ENCODER

Definition at line 58 of file lodepng.h.

#define LODEPNG_COMPILE_ERROR_TEXT

Definition at line 70 of file lodepng.h.

#define LODEPNG_COMPILE_PNG

Definition at line 50 of file lodepng.h.

#define LODEPNG_COMPILE_ZLIB

Definition at line 46 of file lodepng.h.

---

Typedef Documentation

typedef enum LodePNGAutoConvert LodePNGAutoConvert

typedef struct LodePNGColorMode LodePNGColorMode

typedef enum LodePNGColorType LodePNGColorType

typedef struct LodePNGCompressSettings LodePNGCompressSettings

Definition at line 277 of file lodepng.h.

typedef struct LodePNGDecoderSettings LodePNGDecoderSettings

typedef struct LodePNGDecompressSettings LodePNGDecompressSettings

Definition at line 249 of file lodepng.h.

typedef struct LodePNGEncoderSettings LodePNGEncoderSettings

typedef enum LodePNGFilterStrategy LodePNGFilterStrategy

typedef struct LodePNGInfo LodePNGInfo

typedef struct LodePNGState LodePNGState

typedef struct LodePNGTime LodePNGTime

---

Enumeration Type Documentation

enum LodePNGAutoConvert

Enumerator:

LAC_NO
LAC_ALPHA
LAC_AUTO
LAC_AUTO_NO_NIBBLES
LAC_AUTO_NO_PALETTE
LAC_AUTO_NO_NIBBLES_NO_PALETTE

Definition at line 552 of file lodepng.h.

enum LodePNGColorType

Enumerator:

LCT_GREY
LCT_RGB
LCT_PALETTE
LCT_GREY_ALPHA
LCT_RGBA

Definition at line 87 of file lodepng.h.

enum LodePNGFilterStrategy

Enumerator:

LFS_ZERO
LFS_MINSUM
LFS_ENTROPY
LFS_BRUTE_FORCE
LFS_PREDEFINED

Definition at line 533 of file lodepng.h.

---

Function Documentation

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

Definition at line 2805 of file lodepng.cpp.

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

Definition at line 2733 of file lodepng.cpp.

unsigned lodepng_can_have_alpha

(

const LodePNGColorMode *

info

)

Definition at line 2641 of file lodepng.cpp.

unsigned char lodepng_chunk_ancillary

(

const unsigned char *

chunk

)

Definition at line 2384 of file lodepng.cpp.

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

Definition at line 2438 of file lodepng.cpp.

unsigned lodepng_chunk_check_crc

(

const unsigned char *

chunk

)

Definition at line 2409 of file lodepng.cpp.

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

Definition at line 2457 of file lodepng.cpp.

unsigned char* lodepng_chunk_data

(

unsigned char *

chunk

)

Definition at line 2399 of file lodepng.cpp.

const unsigned char* lodepng_chunk_data_const

(

const unsigned char *

chunk

)

Definition at line 2404 of file lodepng.cpp.

void lodepng_chunk_generate_crc

(

unsigned char *

chunk

)

Definition at line 2419 of file lodepng.cpp.

unsigned lodepng_chunk_length

(

const unsigned char *

chunk

)

Definition at line 2366 of file lodepng.cpp.

unsigned char* lodepng_chunk_next

(

unsigned char *

chunk

)

Definition at line 2426 of file lodepng.cpp.

const unsigned char* lodepng_chunk_next_const

(

const unsigned char *

chunk

)

Definition at line 2432 of file lodepng.cpp.

unsigned char lodepng_chunk_private

(

const unsigned char *

chunk

)

Definition at line 2389 of file lodepng.cpp.

unsigned char lodepng_chunk_safetocopy

(

const unsigned char *

chunk

)

Definition at line 2394 of file lodepng.cpp.

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

Definition at line 2371 of file lodepng.cpp.

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

Definition at line 2378 of file lodepng.cpp.

void lodepng_clear_itext

(

LodePNGInfo *

info

)

Definition at line 2800 of file lodepng.cpp.

void lodepng_clear_text

(

LodePNGInfo *

info

)

Definition at line 2728 of file lodepng.cpp.

void lodepng_color_mode_cleanup

(

LodePNGColorMode *

info

)

Definition at line 2538 of file lodepng.cpp.

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

Definition at line 2543 of file lodepng.cpp.

void lodepng_color_mode_init

(

LodePNGColorMode *

info

)

Definition at line 2528 of file lodepng.cpp.

void lodepng_compress_settings_init

(

LodePNGCompressSettings *

settings

)

Definition at line 2223 of file lodepng.cpp.

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

Definition at line 3396 of file lodepng.cpp.

unsigned lodepng_crc32	(	const unsigned char *	buf,
		size_t	len
	)

Definition at line 2307 of file lodepng.cpp.

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

Definition at line 4741 of file lodepng.cpp.

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

Definition at line 4803 of file lodepng.cpp.

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

Definition at line 4826 of file lodepng.cpp.

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

Definition at line 4798 of file lodepng.cpp.

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

Definition at line 4821 of file lodepng.cpp.

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

Definition at line 4809 of file lodepng.cpp.

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 4785 of file lodepng.cpp.

void lodepng_decoder_settings_init

(

LodePNGDecoderSettings *

settings

)

Definition at line 4832 of file lodepng.cpp.

void lodepng_decompress_settings_init

(

LodePNGDecompressSettings *

settings

)

Definition at line 2245 of file lodepng.cpp.

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

Definition at line 2011 of file lodepng.cpp.

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

Definition at line 5665 of file lodepng.cpp.

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

Definition at line 5879 of file lodepng.cpp.

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

Definition at line 5901 of file lodepng.cpp.

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

Definition at line 5874 of file lodepng.cpp.

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

Definition at line 5896 of file lodepng.cpp.

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

Definition at line 5885 of file lodepng.cpp.

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 5858 of file lodepng.cpp.

void lodepng_encoder_settings_init

(

LodePNGEncoderSettings *

settings

)

Definition at line 5907 of file lodepng.cpp.

const char* lodepng_error_text

(

unsigned

code

)

Definition at line 5929 of file lodepng.cpp.

unsigned lodepng_get_bpp

(

const LodePNGColorMode *

info

)

Definition at line 2605 of file lodepng.cpp.

unsigned lodepng_get_channels

(

const LodePNGColorMode *

info

)

Definition at line 2611 of file lodepng.cpp.

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

Definition at line 2648 of file lodepng.cpp.

unsigned lodepng_has_palette_alpha

(

const LodePNGColorMode *

info

)

Definition at line 2631 of file lodepng.cpp.

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

Definition at line 745 of file lodepng.cpp.

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

Definition at line 1276 of file lodepng.cpp.

void lodepng_info_cleanup

(

LodePNGInfo *

info

)

Definition at line 2863 of file lodepng.cpp.

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

Definition at line 2874 of file lodepng.cpp.

void lodepng_info_init

(

LodePNGInfo *

info

)

Definition at line 2843 of file lodepng.cpp.

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

Definition at line 3953 of file lodepng.cpp.

unsigned lodepng_is_alpha_type

(

const LodePNGColorMode *

info

)

Definition at line 2621 of file lodepng.cpp.

unsigned lodepng_is_greyscale_type

(

const LodePNGColorMode *

info

)

Definition at line 2616 of file lodepng.cpp.

unsigned lodepng_is_palette_type

(

const LodePNGColorMode *

info

)

Definition at line 2626 of file lodepng.cpp.

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

Definition at line 358 of file lodepng.cpp.

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

Definition at line 2584 of file lodepng.cpp.

void lodepng_palette_clear

(

LodePNGColorMode *

info

)

Definition at line 2577 of file lodepng.cpp.

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

Definition at line 386 of file lodepng.cpp.

void lodepng_state_cleanup

(

LodePNGState *

state

)

Definition at line 4861 of file lodepng.cpp.

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

Definition at line 4867 of file lodepng.cpp.

void lodepng_state_init

(

LodePNGState *

state

)

Definition at line 4848 of file lodepng.cpp.

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

Definition at line 2137 of file lodepng.cpp.

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

Definition at line 2079 of file lodepng.cpp.

---

Variable Documentation

const LodePNGCompressSettings lodepng_default_compress_settings

Definition at line 2238 of file lodepng.cpp.

const LodePNGDecompressSettings lodepng_default_decompress_settings

Definition at line 2254 of file lodepng.cpp.