pngwrite.c File Reference

#include "pngpriv.h"
#include <errno.h>

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Classes
struct	png_image_write_control

Macros
#define	UNP_RECIPROCAL(alpha)   ((((0xffff*0xff)<<7)+((alpha)>>1))/(alpha))

Functions
void PNGAPI	png_write_info_before_PLTE (png_structrp png_ptr, png_const_inforp info_ptr)
void PNGAPI	png_write_info (png_structrp png_ptr, png_const_inforp info_ptr)
void PNGAPI	png_write_end (png_structrp png_ptr, png_inforp info_ptr)
void PNGAPI	png_convert_from_struct_tm (png_timep ptime, const struct tm *ttime)
void PNGAPI	png_convert_from_time_t (png_timep ptime, time_t ttime)
	PNG_FUNCTION (png_structp, PNGAPI png_create_write_struct,(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn), PNG_ALLOCATED)
	PNG_FUNCTION (png_structp, PNGAPI png_create_write_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn), PNG_ALLOCATED)
void PNGAPI	png_write_rows (png_structrp png_ptr, png_bytepp row, png_uint_32 num_rows)
void PNGAPI	png_write_image (png_structrp png_ptr, png_bytepp image)
void PNGAPI	png_write_row (png_structrp png_ptr, png_const_bytep row)
void PNGAPI	png_set_flush (png_structrp png_ptr, int nrows)
void PNGAPI	png_write_flush (png_structrp png_ptr)
void PNGAPI	png_destroy_write_struct (png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)
void PNGAPI	png_set_filter (png_structrp png_ptr, int method, int filters)
void PNGAPI	png_set_filter_heuristics (png_structrp png_ptr, int heuristic_method, int num_weights, png_const_doublep filter_weights, png_const_doublep filter_costs)
void PNGAPI	png_set_filter_heuristics_fixed (png_structrp png_ptr, int heuristic_method, int num_weights, png_const_fixed_point_p filter_weights, png_const_fixed_point_p filter_costs)
void PNGAPI	png_set_compression_level (png_structrp png_ptr, int level)
void PNGAPI	png_set_compression_mem_level (png_structrp png_ptr, int mem_level)
void PNGAPI	png_set_compression_strategy (png_structrp png_ptr, int strategy)
void PNGAPI	png_set_compression_window_bits (png_structrp png_ptr, int window_bits)
void PNGAPI	png_set_compression_method (png_structrp png_ptr, int method)
void PNGAPI	png_set_text_compression_level (png_structrp png_ptr, int level)
void PNGAPI	png_set_text_compression_mem_level (png_structrp png_ptr, int mem_level)
void PNGAPI	png_set_text_compression_strategy (png_structrp png_ptr, int strategy)
void PNGAPI	png_set_text_compression_window_bits (png_structrp png_ptr, int window_bits)
void PNGAPI	png_set_text_compression_method (png_structrp png_ptr, int method)
void PNGAPI	png_set_write_status_fn (png_structrp png_ptr, png_write_status_ptr write_row_fn)
void PNGAPI	png_set_write_user_transform_fn (png_structrp png_ptr, png_user_transform_ptr write_user_transform_fn)
void PNGAPI	png_write_png (png_structrp png_ptr, png_inforp info_ptr, int transforms, voidp params)
	if (size<=((png_alloc_size_t) -1) - ob)
else	png_error (png_ptr, "png_image_write_to_memory: PNG too big")
int PNGAPI	png_image_write_to_memory (png_imagep image, void *memory, png_alloc_size_t *PNG_RESTRICT memory_bytes, int convert_to_8bit, const void *buffer, png_int_32 row_stride, const void *colormap)
int PNGAPI	png_image_write_to_stdio (png_imagep image, FILE *file, int convert_to_8bit, const void *buffer, png_int_32 row_stride, const void *colormap)
int PNGAPI	png_image_write_to_file (png_imagep image, const char *file_name, int convert_to_8bit, const void *buffer, png_int_32 row_stride, const void *colormap)

Variables
static png_bytep	data
static png_bytep size_t	size
png_alloc_size_t	ob = display->output_bytes

Macro Definition Documentation

UNP_RECIPROCAL

#define UNP_RECIPROCAL

(

alpha

)

((((0xffff*0xff)<<7)+((alpha)>>1))/(alpha))

Definition at line 1639 of file pngwrite.c.

Function Documentation

if()

if

(

size<=((png_alloc_size_t) -1) -

ob

)

Definition at line 2172 of file pngwrite.c.

png_convert_from_struct_tm()

void PNGAPI png_convert_from_struct_tm	(	png_timep	ptime,
		const struct tm *	ttime
	)

Definition at line 472 of file pngwrite.c.

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png_convert_from_time_t()

void PNGAPI png_convert_from_time_t	(	png_timep	ptime,
		time_t	ttime
	)

Definition at line 485 of file pngwrite.c.

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png_destroy_write_struct()

void PNGAPI png_destroy_write_struct	(	png_structpp	png_ptr_ptr,
		png_infopp	info_ptr_ptr
	)

Definition at line 979 of file pngwrite.c.

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png_error()

else png_error	(	png_ptr	,
		"png_image_write_to_memory: PNG too big"
	)

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PNG_FUNCTION() [1/2]

PNG_FUNCTION	(	png_structp	,
		PNGAPI	png_create_write_struct,
		(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn)	,
		PNG_ALLOCATED
	)

Definition at line 497 of file pngwrite.c.

PNG_FUNCTION() [2/2]

PNG_FUNCTION	(	png_structp	,
		PNGAPI	png_create_write_struct_2,
		(png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)	,
		PNG_ALLOCATED
	)

Definition at line 510 of file pngwrite.c.

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png_image_write_to_file()

int PNGAPI png_image_write_to_file	(	png_imagep	image,
		const char *	file_name,
		int	convert_to_8bit,
		const void *	buffer,
		png_int_32	row_stride,
		const void *	colormap
	)

Definition at line 2328 of file pngwrite.c.

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png_image_write_to_memory()

int PNGAPI png_image_write_to_memory	(	png_imagep	image,
		void *	memory,
		png_alloc_size_t *PNG_RESTRICT	memory_bytes,
		int	convert_to_8bit,
		const void *	buffer,
		png_int_32	row_stride,
		const void *	colormap
	)

Definition at line 2212 of file pngwrite.c.

png_image_write_to_stdio()

int PNGAPI png_image_write_to_stdio	(	png_imagep	image,
		FILE *	file,
		int	convert_to_8bit,
		const void *	buffer,
		png_int_32	row_stride,
		const void *	colormap
	)

Definition at line 2279 of file pngwrite.c.

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png_set_compression_level()

void PNGAPI png_set_compression_level	(	png_structrp	png_ptr,
		int	level
	)

Definition at line 1158 of file pngwrite.c.

png_set_compression_mem_level()

void PNGAPI png_set_compression_mem_level	(	png_structrp	png_ptr,
		int	mem_level
	)

Definition at line 1169 of file pngwrite.c.

png_set_compression_method()

void PNGAPI png_set_compression_method	(	png_structrp	png_ptr,
		int	method
	)

Definition at line 1224 of file pngwrite.c.

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png_set_compression_strategy()

void PNGAPI png_set_compression_strategy	(	png_structrp	png_ptr,
		int	strategy
	)

Definition at line 1180 of file pngwrite.c.

png_set_compression_window_bits()

void PNGAPI png_set_compression_window_bits	(	png_structrp	png_ptr,
		int	window_bits
	)

Definition at line 1197 of file pngwrite.c.

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png_set_filter()

void PNGAPI png_set_filter	(	png_structrp	png_ptr,
		int	method,
		int	filters
	)

Definition at line 1000 of file pngwrite.c.

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png_set_filter_heuristics()

void PNGAPI png_set_filter_heuristics	(	png_structrp	png_ptr,
		int	heuristic_method,
		int	num_weights,
		png_const_doublep	filter_weights,
		png_const_doublep	filter_costs
	)

Definition at line 1129 of file pngwrite.c.

png_set_filter_heuristics_fixed()

void PNGAPI png_set_filter_heuristics_fixed	(	png_structrp	png_ptr,
		int	heuristic_method,
		int	num_weights,
		png_const_fixed_point_p	filter_weights,
		png_const_fixed_point_p	filter_costs
	)

Definition at line 1143 of file pngwrite.c.

png_set_flush()

void PNGAPI png_set_flush	(	png_structrp	png_ptr,
		int	nrows
	)

Definition at line 908 of file pngwrite.c.

png_set_text_compression_level()

void PNGAPI png_set_text_compression_level	(	png_structrp	png_ptr,
		int	level
	)

Definition at line 1244 of file pngwrite.c.

png_set_text_compression_mem_level()

void PNGAPI png_set_text_compression_mem_level	(	png_structrp	png_ptr,
		int	mem_level
	)

Definition at line 1255 of file pngwrite.c.

png_set_text_compression_method()

void PNGAPI png_set_text_compression_method	(	png_structrp	png_ptr,
		int	method
	)

Definition at line 1301 of file pngwrite.c.

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png_set_text_compression_strategy()

void PNGAPI png_set_text_compression_strategy	(	png_structrp	png_ptr,
		int	strategy
	)

Definition at line 1266 of file pngwrite.c.

png_set_text_compression_window_bits()

void PNGAPI png_set_text_compression_window_bits	(	png_structrp	png_ptr,
		int	window_bits
	)

Definition at line 1280 of file pngwrite.c.

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png_set_write_status_fn()

void PNGAPI png_set_write_status_fn	(	png_structrp	png_ptr,
		png_write_status_ptr	write_row_fn
	)

Definition at line 1317 of file pngwrite.c.

png_set_write_user_transform_fn()

void PNGAPI png_set_write_user_transform_fn	(	png_structrp	png_ptr,
		png_user_transform_ptr	write_user_transform_fn
	)

Definition at line 1327 of file pngwrite.c.

png_write_end()

void PNGAPI png_write_end	(	png_structrp	png_ptr,
		png_inforp	info_ptr
	)

Definition at line 358 of file pngwrite.c.

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png_write_flush()

void PNGAPI png_write_flush

(

png_structrp

png_ptr

)

Definition at line 920 of file pngwrite.c.

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png_write_image()

void PNGAPI png_write_image	(	png_structrp	png_ptr,
		png_bytepp	image
	)

Definition at line 601 of file pngwrite.c.

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png_write_info()

void PNGAPI png_write_info	(	png_structrp	png_ptr,
		png_const_inforp	info_ptr
	)

Definition at line 192 of file pngwrite.c.

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png_write_info_before_PLTE()

void PNGAPI png_write_info_before_PLTE	(	png_structrp	png_ptr,
		png_const_inforp	info_ptr
	)

Definition at line 84 of file pngwrite.c.

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png_write_png()

void PNGAPI png_write_png	(	png_structrp	png_ptr,
		png_inforp	info_ptr,
		int	transforms,
		voidp	params
	)

Definition at line 1343 of file pngwrite.c.

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png_write_row()

void PNGAPI png_write_row	(	png_structrp	png_ptr,
		png_const_bytep	row
	)

Definition at line 698 of file pngwrite.c.

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png_write_rows()

void PNGAPI png_write_rows	(	png_structrp	png_ptr,
		png_bytepp	row,
		png_uint_32	num_rows
	)

Definition at line 579 of file pngwrite.c.

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Variable Documentation

data

png_bytep data

related

Definition at line 2165 of file pngwrite.c.

ob

png_alloc_size_t ob = display->output_bytes

Definition at line 2169 of file pngwrite.c.

size

png_bytep size_t size

Initial value:

{
   png_image_write_control *display = png_voidcast(png_image_write_control*,
       png_ptr->io_ptr)

Definition at line 2165 of file pngwrite.c.