pngrtran.c File Reference

#include "pngpriv.h"

Go to the source code of this file.

Classes
struct	png_dsort_struct

Macros
#define	CHOP(x)

Typedefs
typedef struct png_dsort_struct	png_dsort
typedef png_dsort *	png_dsortp
typedef png_dsort **	png_dsortpp

Functions
void PNGAPI	png_set_crc_action (png_structrp png_ptr, int crit_action, int ancil_action)
static int	png_rtran_ok (png_structrp png_ptr, int need_IHDR)
void PNGFAPI	png_set_background_fixed (png_structrp png_ptr, png_const_color_16p background_color, int background_gamma_code, int need_expand, png_fixed_point background_gamma)
void PNGAPI	png_set_background (png_structrp png_ptr, png_const_color_16p background_color, int background_gamma_code, int need_expand, double background_gamma)
void PNGAPI	png_set_scale_16 (png_structrp png_ptr)
void PNGAPI	png_set_strip_16 (png_structrp png_ptr)
void PNGAPI	png_set_strip_alpha (png_structrp png_ptr)
static png_fixed_point	translate_gamma_flags (png_structrp png_ptr, png_fixed_point output_gamma, int is_screen)
static png_fixed_point	convert_gamma_value (png_structrp png_ptr, double output_gamma)
void PNGFAPI	png_set_alpha_mode_fixed (png_structrp png_ptr, int mode, png_fixed_point output_gamma)
void PNGAPI	png_set_alpha_mode (png_structrp png_ptr, int mode, double output_gamma)
void PNGAPI	png_set_quantize (png_structrp png_ptr, png_colorp palette, int num_palette, int maximum_colors, png_const_uint_16p histogram, int full_quantize)
void PNGFAPI	png_set_gamma_fixed (png_structrp png_ptr, png_fixed_point scrn_gamma, png_fixed_point file_gamma)
void PNGAPI	png_set_gamma (png_structrp png_ptr, double scrn_gamma, double file_gamma)
void PNGAPI	png_set_expand (png_structrp png_ptr)
void PNGAPI	png_set_palette_to_rgb (png_structrp png_ptr)
void PNGAPI	png_set_expand_gray_1_2_4_to_8 (png_structrp png_ptr)
void PNGAPI	png_set_tRNS_to_alpha (png_structrp png_ptr)
void PNGAPI	png_set_expand_16 (png_structrp png_ptr)
void PNGAPI	png_set_gray_to_rgb (png_structrp png_ptr)
void PNGFAPI	png_set_rgb_to_gray_fixed (png_structrp png_ptr, int error_action, png_fixed_point red, png_fixed_point green)
void PNGAPI	png_set_rgb_to_gray (png_structrp png_ptr, int error_action, double red, double green)
void PNGAPI	png_set_read_user_transform_fn (png_structrp png_ptr, png_user_transform_ptr read_user_transform_fn)
static int	png_gamma_threshold (png_fixed_point screen_gamma, png_fixed_point file_gamma)
static void	png_init_palette_transformations (png_structrp png_ptr)
static void	png_init_rgb_transformations (png_structrp png_ptr)
void	png_init_read_transformations (png_structrp png_ptr)
void	png_read_transform_info (png_structrp png_ptr, png_inforp info_ptr)
void	png_do_read_transformations (png_structrp png_ptr, png_row_infop row_info)
void	png_do_unpack (png_row_infop row_info, png_bytep row)
void	png_do_unshift (png_row_infop row_info, png_bytep row, png_const_color_8p sig_bits)
void	png_do_scale_16_to_8 (png_row_infop row_info, png_bytep row)
void	png_do_chop (png_row_infop row_info, png_bytep row)
void	png_do_read_swap_alpha (png_row_infop row_info, png_bytep row)
void	png_do_read_invert_alpha (png_row_infop row_info, png_bytep row)
void	png_do_read_filler (png_row_infop row_info, png_bytep row, png_uint_32 filler, png_uint_32 flags)
void	png_do_gray_to_rgb (png_row_infop row_info, png_bytep row)
int	png_do_rgb_to_gray (png_structrp png_ptr, png_row_infop row_info, png_bytep row)
void	png_do_compose (png_row_infop row_info, png_bytep row, png_structrp png_ptr)
void	png_do_gamma (png_row_infop row_info, png_bytep row, png_structrp png_ptr)
void	png_do_encode_alpha (png_row_infop row_info, png_bytep row, png_structrp png_ptr)
void	png_do_expand_palette (png_row_infop row_info, png_bytep row, png_const_colorp palette, png_const_bytep trans_alpha, int num_trans)
void	png_do_expand (png_row_infop row_info, png_bytep row, png_const_color_16p trans_color)
void	png_do_expand_16 (png_row_infop row_info, png_bytep row)
void	png_do_quantize (png_row_infop row_info, png_bytep row, png_const_bytep palette_lookup, png_const_bytep quantize_lookup)

Macro Definition Documentation

CHOP

#define CHOP

(

x

)

Value:

(x)=((png_uint_16)PNG_DIV257(x))

Typedef Documentation

png_dsort

typedef struct png_dsort_struct png_dsort

png_dsortp

typedef png_dsort* png_dsortp

png_dsortpp

typedef png_dsort* * png_dsortpp

Function Documentation

convert_gamma_value()

png_fixed_point convert_gamma_value ( png_structrp png_ptr, double output_gamma )

static

png_do_chop()

void png_do_chop	(	png_row_infop	row_info,
		png_bytep	row )

png_do_compose()

void png_do_compose	(	png_row_infop	row_info,
		png_bytep	row,
		png_structrp	png_ptr )

png_do_encode_alpha()

void png_do_encode_alpha	(	png_row_infop	row_info,
		png_bytep	row,
		png_structrp	png_ptr )

png_do_expand()

void png_do_expand	(	png_row_infop	row_info,
		png_bytep	row,
		png_const_color_16p	trans_color )

png_do_expand_16()

void png_do_expand_16	(	png_row_infop	row_info,
		png_bytep	row )

png_do_expand_palette()

void png_do_expand_palette	(	png_row_infop	row_info,
		png_bytep	row,
		png_const_colorp	palette,
		png_const_bytep	trans_alpha,
		int	num_trans )

png_do_gamma()

void png_do_gamma	(	png_row_infop	row_info,
		png_bytep	row,
		png_structrp	png_ptr )

png_do_gray_to_rgb()

void png_do_gray_to_rgb	(	png_row_infop	row_info,
		png_bytep	row )

png_do_quantize()

void png_do_quantize	(	png_row_infop	row_info,
		png_bytep	row,
		png_const_bytep	palette_lookup,
		png_const_bytep	quantize_lookup )

png_do_read_filler()

void png_do_read_filler	(	png_row_infop	row_info,
		png_bytep	row,
		png_uint_32	filler,
		png_uint_32	flags )

png_do_read_invert_alpha()

void png_do_read_invert_alpha	(	png_row_infop	row_info,
		png_bytep	row )

png_do_read_swap_alpha()

void png_do_read_swap_alpha	(	png_row_infop	row_info,
		png_bytep	row )

png_do_read_transformations()

void png_do_read_transformations	(	png_structrp	png_ptr,
		png_row_infop	row_info )

png_do_rgb_to_gray()

int png_do_rgb_to_gray	(	png_structrp	png_ptr,
		png_row_infop	row_info,
		png_bytep	row )

png_do_scale_16_to_8()

void png_do_scale_16_to_8	(	png_row_infop	row_info,
		png_bytep	row )

png_do_unpack()

void png_do_unpack	(	png_row_infop	row_info,
		png_bytep	row )

png_do_unshift()

void png_do_unshift	(	png_row_infop	row_info,
		png_bytep	row,
		png_const_color_8p	sig_bits )

png_gamma_threshold()

int png_gamma_threshold ( png_fixed_point screen_gamma, png_fixed_point file_gamma )

static

png_init_palette_transformations()

void png_init_palette_transformations ( png_structrp png_ptr )

static

png_init_read_transformations()

void png_init_read_transformations

(

png_structrp

png_ptr

)

png_init_rgb_transformations()

void png_init_rgb_transformations ( png_structrp png_ptr )

static

png_read_transform_info()

void png_read_transform_info	(	png_structrp	png_ptr,
		png_inforp	info_ptr )

png_rtran_ok()

int png_rtran_ok ( png_structrp png_ptr, int need_IHDR )

static

png_set_alpha_mode()

void PNGAPI png_set_alpha_mode	(	png_structrp	png_ptr,
		int	mode,
		double	output_gamma )

png_set_alpha_mode_fixed()

void PNGFAPI png_set_alpha_mode_fixed	(	png_structrp	png_ptr,
		int	mode,
		png_fixed_point	output_gamma )

png_set_background()

void PNGAPI png_set_background	(	png_structrp	png_ptr,
		png_const_color_16p	background_color,
		int	background_gamma_code,
		int	need_expand,
		double	background_gamma )

png_set_background_fixed()

void PNGFAPI png_set_background_fixed	(	png_structrp	png_ptr,
		png_const_color_16p	background_color,
		int	background_gamma_code,
		int	need_expand,
		png_fixed_point	background_gamma )

png_set_crc_action()

void PNGAPI png_set_crc_action	(	png_structrp	png_ptr,
		int	crit_action,
		int	ancil_action )

png_set_expand()

void PNGAPI png_set_expand

(

png_structrp

png_ptr

)

png_set_expand_16()

void PNGAPI png_set_expand_16

(

png_structrp

png_ptr

)

png_set_expand_gray_1_2_4_to_8()

void PNGAPI png_set_expand_gray_1_2_4_to_8

(

png_structrp

png_ptr

)

png_set_gamma()

void PNGAPI png_set_gamma	(	png_structrp	png_ptr,
		double	scrn_gamma,
		double	file_gamma )

png_set_gamma_fixed()

void PNGFAPI png_set_gamma_fixed	(	png_structrp	png_ptr,
		png_fixed_point	scrn_gamma,
		png_fixed_point	file_gamma )

png_set_gray_to_rgb()

void PNGAPI png_set_gray_to_rgb

(

png_structrp

png_ptr

)

png_set_palette_to_rgb()

void PNGAPI png_set_palette_to_rgb

(

png_structrp

png_ptr

)

png_set_quantize()

void PNGAPI png_set_quantize	(	png_structrp	png_ptr,
		png_colorp	palette,
		int	num_palette,
		int	maximum_colors,
		png_const_uint_16p	histogram,
		int	full_quantize )

png_set_read_user_transform_fn()

void PNGAPI png_set_read_user_transform_fn	(	png_structrp	png_ptr,
		png_user_transform_ptr	read_user_transform_fn )

png_set_rgb_to_gray()

void PNGAPI png_set_rgb_to_gray	(	png_structrp	png_ptr,
		int	error_action,
		double	red,
		double	green )

png_set_rgb_to_gray_fixed()

void PNGFAPI png_set_rgb_to_gray_fixed	(	png_structrp	png_ptr,
		int	error_action,
		png_fixed_point	red,
		png_fixed_point	green )

png_set_scale_16()

void PNGAPI png_set_scale_16

(

png_structrp

png_ptr

)

png_set_strip_16()

void PNGAPI png_set_strip_16

(

png_structrp

png_ptr

)

png_set_strip_alpha()

void PNGAPI png_set_strip_alpha

(

png_structrp

png_ptr

)

png_set_tRNS_to_alpha()

void PNGAPI png_set_tRNS_to_alpha

(

png_structrp

png_ptr

)

translate_gamma_flags()

png_fixed_point translate_gamma_flags ( png_structrp png_ptr, png_fixed_point output_gamma, int is_screen )

static