rpng2-x.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <setjmp.h>
#include <time.h>
#include <math.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <X11/keysym.h>
#include "readpng2.h"

Go to the source code of this file.

Macros
#define	PROGNAME   "rpng2-x"
#define	LONGNAME   "Progressive PNG Viewer for X"
#define	VERSION   "2.02 of 16 March 2008"
#define	RESNAME   "rpng2" /* our X resource application name */
#define	RESCLASS   "Rpng" /* our X resource class name */
#define	PI   3.141592653589793238
#define	PI_2   (PI*0.5)
#define	INV_PI_360   (360.0 / PI)
#define	MAX(a, b)   (a>b?a:b)
#define	MIN(a, b)   (a<b?a:b)
#define	CLIP(a, min, max)   MAX(min,MIN((a),max))
#define	ABS(a)   ((a)<0?-(a):(a))
#define	CLIP8P(c)   MAX(0,(MIN((c),255))) /* 8-bit pos. integer (uch) */
#define	ROUNDF(f)   ((int)(f + 0.5))
#define	QUIT(e, k)
#define	NO_24BIT_MASKS   /* undef case not fully written--only for redisplay() */
#define	rgb1_max   bg_freq
#define	rgb1_min   bg_gray
#define	rgb2_max   bg_bsat
#define	rgb2_min   bg_brot
#define	alpha_composite(composite, fg, alpha, bg)
#define	INBUFSIZE

Functions
int	main (int argc, char **argv)

Variables
int	pause_after_pass = FALSE
int	demo_timing = FALSE
ulg	usleep_duration = 0L

Macro Definition Documentation

ABS

#define ABS

(

a

)

((a)<0?-(a):(a))

Definition at line 126 of file rpng2-x.c.

alpha_composite

#define alpha_composite	(		composite,
			fg,
			alpha,
			bg
	)

Value:

{               \
    ush temp = ((ush)(fg)*(ush)(alpha) +                          \
                (ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128);  \
    (composite) = (uch)((temp + (temp >> 8)) >> 8);               \
}

Definition at line 151 of file rpng2-x.c.

CLIP

#define CLIP	(		a,
			min,
			max
	)		MAX(min,MIN((a),max))

Definition at line 125 of file rpng2-x.c.

CLIP8P

#define CLIP8P

(

c

)

MAX(0,(MIN((c),255))) /* 8-bit pos. integer (uch) */

Definition at line 127 of file rpng2-x.c.

INBUFSIZE

#define INBUFSIZE

Value:

4096   /* with pseudo-timing on (1 sec delay/block), this
                          *  block size corresponds roughly to a download
                          *  speed 10% faster than theoretical 33.6K maximum
                          *  (assuming 8 data bits, 1 stop bit and no other
                          *  overhead) */

Definition at line 158 of file rpng2-x.c.

INV_PI_360

#define INV_PI_360   (360.0 / PI)

Definition at line 122 of file rpng2-x.c.

LONGNAME

#define LONGNAME   "Progressive PNG Viewer for X"

Definition at line 96 of file rpng2-x.c.

MAX

#define MAX	(		a,
			b
	)		(a>b?a:b)

Definition at line 123 of file rpng2-x.c.

MIN

#define MIN	(		a,
			b
	)		(a<b?a:b)

Definition at line 124 of file rpng2-x.c.

NO_24BIT_MASKS

#define NO_24BIT_MASKS   /* undef case not fully written--only for redisplay() */

Definition at line 134 of file rpng2-x.c.

PI

#define PI   3.141592653589793238

Definition at line 119 of file rpng2-x.c.

PI_2

#define PI_2   (PI*0.5)

Definition at line 121 of file rpng2-x.c.

PROGNAME

#define PROGNAME   "rpng2-x"

Definition at line 95 of file rpng2-x.c.

QUIT

#define QUIT	(		e,
			k
	)

Value:

((e.type == ButtonPress && e.xbutton.button == Button1) ||  \
                  (e.type == KeyPress &&   /*  v--- or 1 for shifted keys */  \
                  ((k = XLookupKeysym(&e.xkey, 0)) == XK_q || k == XK_Escape)))

Definition at line 130 of file rpng2-x.c.

RESCLASS

#define RESCLASS   "Rpng" /* our X resource class name */

Definition at line 99 of file rpng2-x.c.

RESNAME

#define RESNAME   "rpng2" /* our X resource application name */

Definition at line 98 of file rpng2-x.c.

rgb1_max

#define rgb1_max   bg_freq

Definition at line 136 of file rpng2-x.c.

rgb1_min

#define rgb1_min   bg_gray

Definition at line 137 of file rpng2-x.c.

rgb2_max

#define rgb2_max   bg_bsat

Definition at line 138 of file rpng2-x.c.

rgb2_min

#define rgb2_min   bg_brot

Definition at line 139 of file rpng2-x.c.

ROUNDF

#define ROUNDF

(

f

)

((int)(f + 0.5))

Definition at line 128 of file rpng2-x.c.

VERSION

#define VERSION   "2.02 of 16 March 2008"

Definition at line 97 of file rpng2-x.c.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 292 of file rpng2-x.c.

Variable Documentation

demo_timing

int demo_timing = FALSE

Definition at line 200 of file rpng2-x.c.

pause_after_pass

int pause_after_pass = FALSE

Definition at line 199 of file rpng2-x.c.

usleep_duration

ulg usleep_duration = 0L

Definition at line 201 of file rpng2-x.c.