pngtrans.c File Reference

#include "pngpriv.h"

Go to the source code of this file.

Functions
void	png_do_bgr (png_row_infop row_info, png_bytep row)
void	png_do_invert (png_row_infop row_info, png_bytep row)
void	png_do_packswap (png_row_infop row_info, png_bytep row)
void	png_do_strip_channel (png_row_infop row_info, png_bytep row, int at_start)
void	png_do_swap (png_row_infop row_info, png_bytep row)
png_byte PNGAPI	png_get_current_pass_number (png_const_structp png_ptr)
png_uint_32 PNGAPI	png_get_current_row_number (png_const_structp png_ptr)
png_voidp PNGAPI	png_get_user_transform_ptr (png_const_structp png_ptr)
void PNGAPI	png_set_add_alpha (png_structp png_ptr, png_uint_32 filler, int filler_loc)
void PNGAPI	png_set_bgr (png_structp png_ptr)
void PNGAPI	png_set_filler (png_structp png_ptr, png_uint_32 filler, int filler_loc)
int PNGAPI	png_set_interlace_handling (png_structp png_ptr)
void PNGAPI	png_set_invert_alpha (png_structp png_ptr)
void PNGAPI	png_set_invert_mono (png_structp png_ptr)
void PNGAPI	png_set_packing (png_structp png_ptr)
void PNGAPI	png_set_packswap (png_structp png_ptr)
void PNGAPI	png_set_shift (png_structp png_ptr, png_const_color_8p true_bits)
void PNGAPI	png_set_swap (png_structp png_ptr)
void PNGAPI	png_set_swap_alpha (png_structp png_ptr)
void PNGAPI	png_set_user_transform_info (png_structp png_ptr, png_voidp user_transform_ptr, int user_transform_depth, int user_transform_channels)

Variables
static PNG_CONST png_byte	fourbppswaptable [256]
static PNG_CONST png_byte	onebppswaptable [256]
static PNG_CONST png_byte	twobppswaptable [256]

Function Documentation

void png_do_bgr	(	png_row_infop	row_info,
		png_bytep	row
	)

Definition at line 546 of file pngtrans.c.

References i, PNG_COLOR_MASK_COLOR, PNG_COLOR_TYPE_RGB, PNG_COLOR_TYPE_RGB_ALPHA, and png_debug.

Referenced by png_do_read_transformations(), and png_do_write_transformations().

void png_do_invert	(	png_row_infop	row_info,
		png_bytep	row
	)

Definition at line 210 of file pngtrans.c.

References i, PNG_COLOR_TYPE_GRAY, PNG_COLOR_TYPE_GRAY_ALPHA, and png_debug.

Referenced by png_do_read_transformations(), and png_do_write_transformations().

void png_do_packswap	(	png_row_infop	row_info,
		png_bytep	row
	)

Definition at line 396 of file pngtrans.c.

References fourbppswaptable, onebppswaptable, png_debug, and twobppswaptable.

Referenced by png_do_read_transformations(), and png_do_write_transformations().

void png_do_strip_channel	(	png_row_infop	row_info,
		png_bytep	row,
		int	at_start
	)

Definition at line 436 of file pngtrans.c.

References PNG_COLOR_TYPE_GRAY, PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_RGB, and PNG_COLOR_TYPE_RGB_ALPHA.

Referenced by png_do_read_transformations(), and png_do_write_transformations().

void png_do_swap	(	png_row_infop	row_info,
		png_bytep	row
	)

Definition at line 267 of file pngtrans.c.

References i, and png_debug.

Referenced by png_do_read_transformations(), and png_do_write_transformations().

png_byte PNGAPI png_get_current_pass_number

(

png_const_structp

png_ptr

)

Definition at line 669 of file pngtrans.c.

References NULL.

png_uint_32 PNGAPI png_get_current_row_number

(

png_const_structp

png_ptr

)

Definition at line 657 of file pngtrans.c.

References NULL, and PNG_UINT_32_MAX.

png_voidp PNGAPI png_get_user_transform_ptr

(

png_const_structp

png_ptr

)

Definition at line 646 of file pngtrans.c.

References NULL.

void PNGAPI png_set_add_alpha	(	png_structp	png_ptr,
		png_uint_32	filler,
		int	filler_loc
	)

Definition at line 155 of file pngtrans.c.

References NULL, PNG_ADD_ALPHA, png_debug, and png_set_filler().

void PNGAPI png_set_bgr

(

png_structp

png_ptr

)

Definition at line 21 of file pngtrans.c.

References NULL, PNG_BGR, and png_debug.

Referenced by png_read_png(), and png_write_png().

void PNGAPI png_set_filler	(	png_structp	png_ptr,
		png_uint_32	filler,
		int	filler_loc
	)

Definition at line 118 of file pngtrans.c.

References NULL, PNG_COLOR_TYPE_GRAY, PNG_COLOR_TYPE_RGB, png_debug, PNG_FILLER, PNG_FILLER_AFTER, and PNG_FLAG_FILLER_AFTER.

Referenced by png_set_add_alpha(), and png_write_png().

int PNGAPI png_set_interlace_handling

(

png_structp

png_ptr

)

Definition at line 97 of file pngtrans.c.

References png_debug, and PNG_INTERLACE.

Referenced by png_read_image(), png_read_png(), png_write_image(), and test_one_file().

void PNGAPI png_set_invert_alpha

(

png_structp

png_ptr

)

Definition at line 185 of file pngtrans.c.

References NULL, png_debug, and PNG_INVERT_ALPHA.

Referenced by png_read_png(), and png_write_png().

void PNGAPI png_set_invert_mono

(

png_structp

png_ptr

)

Definition at line 198 of file pngtrans.c.

References NULL, png_debug, and PNG_INVERT_MONO.

Referenced by png_read_png(), and png_write_png().

void PNGAPI png_set_packing

(

png_structp

png_ptr

)

Definition at line 50 of file pngtrans.c.

References NULL, png_debug, and PNG_PACK.

Referenced by png_read_png(), and png_write_png().

void PNGAPI png_set_packswap

(

png_structp

png_ptr

)

Definition at line 68 of file pngtrans.c.

References NULL, png_debug, and PNG_PACKSWAP.

Referenced by png_read_png(), and png_write_png().

void PNGAPI png_set_shift	(	png_structp	png_ptr,
		png_const_color_8p	true_bits
	)

Definition at line 82 of file pngtrans.c.

References NULL, png_debug, and PNG_SHIFT.

Referenced by png_read_png(), and png_write_png().

void PNGAPI png_set_swap

(

png_structp

png_ptr

)

Definition at line 35 of file pngtrans.c.

References NULL, png_debug, and PNG_SWAP_BYTES.

Referenced by png_read_png(), and png_write_png().

void PNGAPI png_set_swap_alpha

(

png_structp

png_ptr

)

Definition at line 171 of file pngtrans.c.

References NULL, png_debug, and PNG_SWAP_ALPHA.

Referenced by png_read_png(), and png_write_png().

void PNGAPI png_set_user_transform_info	(	png_structp	png_ptr,
		png_voidp	user_transform_ptr,
		int	user_transform_depth,
		int	user_transform_channels
	)

Definition at line 626 of file pngtrans.c.

References NULL, and png_debug.

Variable Documentation

PNG_CONST png_byte fourbppswaptable[256]

static

Definition at line 359 of file pngtrans.c.

Referenced by png_do_packswap().

PNG_CONST png_byte onebppswaptable[256]

static

Definition at line 289 of file pngtrans.c.

Referenced by png_do_packswap().

PNG_CONST png_byte twobppswaptable[256]

static

Definition at line 324 of file pngtrans.c.

Referenced by png_do_packswap().