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/* Copyright (c) 1986 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* pfilt.c - program to post-process picture file. |
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* |
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* 9/26/85 |
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* 6/23/93 Added additional buffers for value spreading |
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*/ |
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#include <stdio.h> |
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#include "copyright.h" |
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#include <signal.h> |
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#include "pfilt.h" |
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#include "platform.h" |
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#include "view.h" |
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|
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#include "color.h" |
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#define FEQ(a,b) ((a) >= .98*(b) && (a) <= 1.02*(b)) |
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double CHECKRAD = 2.0; /* radius to check for filtering */ |
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extern char *malloc(); |
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#define THRESHRAD 5.0 /* maximum sample spread in output */ |
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#define CHECKRAD 1.5 /* radius to check for filtering */ |
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|
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COLOR exposure = WHTCOLOR; /* exposure for the frame */ |
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double rad = 0.0; /* output pixel radius for filtering */ |
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double rad = 0.0; /* output pixel radius for filtering */ |
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double thresh = 0.0; /* maximum contribution for subpixel */ |
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|
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int nrows = 0; /* number of rows for output */ |
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int ncols = 0; /* number of columns for output */ |
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double x_c = 1.0; /* ratio of output x size to input */ |
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double y_r = 1.0; /* ratio of output y size to input */ |
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double x_c = 1.0; /* ratio of output x size to input */ |
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double y_r = 1.0; /* ratio of output y size to input */ |
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|
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int singlepass = 0; /* true means skip first pass */ |
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int avghot = 0; /* true means average in bright spots */ |
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double hotlvl = 1000.0; /* level considered "hot" */ |
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double hotlvl = 100.0; /* level considered "hot" */ |
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|
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int npts = 0; /* (half) number of points for stars */ |
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double spread = 1e-4; /* spread for star points */ |
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double spread = 1e-4; /* spread for star points */ |
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|
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#define TEMPLATE "/usr/tmp/pfXXXXXX" |
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|
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char *tfname = NULL; |
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|
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char template[] = TEMPLATE; |
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|
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char *lampdat = "lamp.tab"; /* lamp data file */ |
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|
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int order; /* scanline ordering of input */ |
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int xres, yres; /* resolution of input */ |
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double inpaspect = 1.0; /* pixel aspect ratio of input */ |
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int correctaspect = 0; /* aspect ratio correction? */ |
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|
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int xrad; /* x window size */ |
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int yrad; /* y window size */ |
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int wrongformat = 0; |
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|
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VIEW ourview = STDVIEW; |
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int gotview = 0; |
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int wrapfilt = 0; /* wrap filter horizontally? */ |
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|
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int estatus = 0; /* exit status (for non-fatal errors) */ |
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|
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int xrad; /* x search radius */ |
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int yrad; /* y search radius */ |
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int xbrad; /* x box size */ |
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int ybrad; /* y box size */ |
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|
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int barsize; /* size of input scan bar */ |
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COLOR **scanin; /* input scan bar */ |
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COLOR *scanout; /* output scan line */ |
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COLORV **scanin; /* input scan bar */ |
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COLORV *scanout; /* output scan line */ |
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COLORV **scoutbar; /* output scan bar (if thresh > 0) */ |
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float **greybar; /* grey-averaged input values */ |
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int obarsize = 0; /* size of output scan bar */ |
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int orad = 0; /* output window radius */ |
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|
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char *progname; |
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static void copyfile(FILE *infp, FILE *out); |
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static void pass1(FILE *infp); |
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static void pass2(FILE *infp); |
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static void scan2init(void); |
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static void scan2sync(int r); |
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static void scan2flush(void); |
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|
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main(argc, argv) |
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int argc; |
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char **argv; |
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static double |
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rgb_bright( |
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SCOLOR clr |
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) |
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{ |
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extern char *mktemp(); |
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extern double atof(), pow(); |
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extern long ftell(); |
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extern int quit(); |
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return(bright(clr)); |
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} |
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|
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|
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static double |
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xyz_bright( |
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SCOLOR clr |
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) |
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{ |
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return(colval(clr,CIEY)); |
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} |
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|
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|
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static double |
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spec_bright( |
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SCOLOR clr |
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) |
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{ |
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return(pbright(clr)); |
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} |
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|
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|
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brightfunc_t *ourbright = rgb_bright; |
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|
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|
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static int |
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headline( /* process line from header */ |
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char *s, |
119 |
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void *p |
120 |
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) |
121 |
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{ |
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char fmt[MAXFMTLEN]; |
123 |
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|
124 |
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fputs(s, stdout); /* copy to output */ |
125 |
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if (isaspect(s)) /* get aspect ratio */ |
126 |
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inpaspect *= aspectval(s); |
127 |
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else if (isexpos(s)) /* get exposure */ |
128 |
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hotlvl *= exposval(s); |
129 |
> |
else if (isncomp(s)) /* get #components (spectral) */ |
130 |
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NCSAMP = ncompval(s); |
131 |
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else if (iswlsplit(s)) /* get wavelength partitions */ |
132 |
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wlsplitval(WLPART, s); |
133 |
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else if (formatval(fmt, s)) { /* get format */ |
134 |
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wrongformat = 0; |
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if (!strcmp(COLRFMT, fmt)) |
136 |
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ourbright = rgb_bright; |
137 |
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else if (!strcmp(CIEFMT, fmt)) |
138 |
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ourbright = xyz_bright; |
139 |
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else if (!strcmp(SPECFMT, fmt)) |
140 |
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ourbright = spec_bright; |
141 |
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else |
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wrongformat = !globmatch(PICFMT, fmt); |
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} else if (isview(s) && sscanview(&ourview, s) > 0) |
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gotview++; |
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return(0); |
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} |
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|
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|
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int |
150 |
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main( |
151 |
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int argc, |
152 |
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char **argv |
153 |
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) |
154 |
> |
{ |
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FILE *fin; |
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float *lampcolor; |
157 |
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char *lamptype = NULL; |
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long fpos; |
159 |
< |
double d; |
160 |
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int i; |
159 |
> |
double outaspect = 0.0; |
160 |
> |
double d; |
161 |
> |
int i, j; |
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|
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fixargv0(argv[0]); /* sets global progname */ |
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SET_DEFAULT_BINARY(); |
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SET_FILE_BINARY(stdin); |
166 |
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SET_FILE_BINARY(stdout); |
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if (signal(SIGINT, quit) == SIG_IGN) |
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signal(SIGINT, SIG_IGN); |
169 |
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#ifdef SIGHUP |
170 |
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if (signal(SIGHUP, quit) == SIG_IGN) |
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signal(SIGINT, SIG_IGN); |
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signal(SIGHUP, SIG_IGN); |
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#endif |
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signal(SIGTERM, quit); |
174 |
+ |
#ifdef SIGPIPE |
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signal(SIGPIPE, quit); |
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#ifdef SIGXCPU |
176 |
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#endif |
177 |
> |
#ifdef SIGXCPU |
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signal(SIGXCPU, quit); |
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signal(SIGXFSZ, quit); |
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#endif |
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|
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progname = argv[0]; |
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|
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for (i = 1; i < argc; i++) |
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if (argv[i][0] == '-') |
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switch (argv[i][1]) { |
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} else |
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nrows = atoi(argv[i]); |
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break; |
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case 'c': |
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correctaspect = !correctaspect; |
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break; |
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case 'p': |
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i++; |
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outaspect = atof(argv[i]); |
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break; |
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case 'e': |
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if (argv[i+1][0] == '+' || argv[i+1][0] == '-') |
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d = pow(2.0, atof(argv[i+1])); |
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else |
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d = atof(argv[i+1]); |
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if (d < 1e-20 || d > 1e20) { |
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fprintf(stderr, |
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"%s: exposure out of range\n", |
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progname); |
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quit(1); |
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} |
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switch (argv[i][2]) { |
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case '\0': |
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scalecolor(exposure, d); |
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} |
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i++; |
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break; |
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case 'f': |
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lampdat = argv[++i]; |
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break; |
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case 't': |
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lamptype = argv[++i]; |
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break; |
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case '1': |
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singlepass = 1; |
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break; |
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case '2': |
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singlepass = 0; |
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break; |
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< |
case 'p': |
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case 'n': |
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npts = atoi(argv[++i]) / 2; |
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break; |
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case 's': |
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case 'r': |
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rad = atof(argv[++i]); |
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break; |
263 |
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case 'm': |
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thresh = atof(argv[++i]); |
265 |
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if (rad <= FTINY) |
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rad = 0.6; |
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break; |
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case 'b': |
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rad = 0.0; |
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rad = thresh = 0.0; |
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break; |
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default:; |
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badopt: |
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} |
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else |
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break; |
280 |
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|
280 |
> |
/* get lamp data (if necessary) */ |
281 |
> |
if (lamptype != NULL) { |
282 |
> |
if (loadlamps(lampdat) < 0) |
283 |
> |
quit(1); |
284 |
> |
if ((lampcolor = matchlamp(lamptype)) == NULL) { |
285 |
> |
fprintf(stderr, "%s: unknown lamp type\n", lamptype); |
286 |
> |
quit(1); |
287 |
> |
} |
288 |
> |
for (j = 0; j < 3; j++) |
289 |
> |
if (lampcolor[j] > 1e-4) |
290 |
> |
colval(exposure,j) /= lampcolor[j]; |
291 |
> |
freelamps(); |
292 |
> |
} |
293 |
> |
/* open input file */ |
294 |
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if (i == argc) { |
295 |
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if (singlepass) |
296 |
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fin = stdin; |
297 |
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else { |
298 |
< |
tfname = mktemp(TEMPLATE); |
299 |
< |
if ((fin = fopen(tfname, "w+")) == NULL) { |
298 |
> |
tfname = mktemp(template); |
299 |
> |
if ((fin = fopen(tfname, "w+b")) == NULL) { |
300 |
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fprintf(stderr, "%s: can't create ", progname); |
301 |
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fprintf(stderr, "temp file \"%s\"\n", tfname); |
302 |
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quit(1); |
308 |
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} |
309 |
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} |
310 |
|
} else if (i == argc-1) { |
311 |
< |
if ((fin = fopen(argv[i], "r")) == NULL) { |
311 |
> |
if ((fin = fopen(argv[i], "rb")) == NULL) { |
312 |
|
fprintf(stderr, "%s: can't open file \"%s\"\n", |
313 |
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progname, argv[i]); |
314 |
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quit(1); |
317 |
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fprintf(stderr, "%s: bad # file arguments\n", progname); |
318 |
|
quit(1); |
319 |
|
} |
320 |
< |
/* copy header */ |
321 |
< |
copyheader(fin, stdout); |
320 |
> |
/* get header */ |
321 |
> |
getheader(fin, headline, NULL); |
322 |
> |
if (wrongformat) { |
323 |
> |
fprintf(stderr, "%s: input must be a Radiance picture\n", |
324 |
> |
progname); |
325 |
> |
quit(1); |
326 |
> |
} |
327 |
> |
if ((ourbright == spec_bright) ^ (NCSAMP > 3) || |
328 |
> |
setspectrsamp(CNDX, WLPART) < 0) { |
329 |
> |
fprintf(stderr, "%s: bad number of components\n", progname); |
330 |
> |
quit(1); |
331 |
> |
} |
332 |
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/* add new header info. */ |
333 |
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printargs(i, argv, stdout); |
334 |
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/* get picture size */ |
335 |
< |
if (fgetresolu(&xres, &yres, fin) != (YMAJOR|YDECR)) { |
335 |
> |
if ((order = fgetresolu(&xres, &yres, fin)) < 0) { |
336 |
|
fprintf(stderr, "%s: bad picture size\n", progname); |
337 |
|
quit(1); |
338 |
|
} |
339 |
< |
if (ncols > 0) |
340 |
< |
x_c = (double)ncols/xres; |
341 |
< |
else |
339 |
> |
if (!(order & YMAJOR)) |
340 |
> |
inpaspect = 1.0/inpaspect; |
341 |
> |
/* wrap around for cylindrical view? */ |
342 |
> |
wrapfilt = gotview && ourview.type == VT_CYL && |
343 |
> |
ourview.horiz >= 360.-FTINY && order & YMAJOR; |
344 |
> |
/* compute output resolution */ |
345 |
> |
if (ncols <= 0) |
346 |
|
ncols = x_c*xres + .5; |
347 |
< |
if (nrows > 0) |
202 |
< |
y_r = (double)nrows/yres; |
203 |
< |
else |
347 |
> |
if (nrows <= 0) |
348 |
|
nrows = y_r*yres + .5; |
349 |
+ |
if (outaspect > .01) { |
350 |
+ |
d = inpaspect * yres/xres / outaspect; |
351 |
+ |
if (d * ncols > nrows) |
352 |
+ |
ncols = nrows / d; |
353 |
+ |
else |
354 |
+ |
nrows = ncols * d; |
355 |
+ |
} |
356 |
+ |
x_c = (double)ncols/xres; |
357 |
+ |
y_r = (double)nrows/yres; |
358 |
|
|
359 |
< |
if (singlepass) { |
207 |
< |
/* skip exposure, etc. */ |
359 |
> |
if (singlepass) { /* skip exposure, etc. */ |
360 |
|
pass1default(); |
361 |
|
pass2(fin); |
362 |
|
quit(0); |
372 |
|
} |
373 |
|
pass2(fin); |
374 |
|
|
375 |
< |
quit(0); |
375 |
> |
quit(estatus); |
376 |
> |
return estatus; /* pro forma return */ |
377 |
|
} |
378 |
|
|
379 |
|
|
380 |
< |
copyfile(in, out) /* copy a file */ |
381 |
< |
register FILE *in, *out; |
380 |
> |
static void |
381 |
> |
copyfile( /* copy a file */ |
382 |
> |
FILE *infp, |
383 |
> |
FILE *out |
384 |
> |
) |
385 |
|
{ |
386 |
< |
register int c; |
386 |
> |
int c; |
387 |
|
|
388 |
< |
while ((c = getc(in)) != EOF) |
388 |
> |
while ((c = getc(infp)) != EOF) |
389 |
|
putc(c, out); |
390 |
|
|
391 |
|
if (ferror(out)) { |
395 |
|
} |
396 |
|
|
397 |
|
|
398 |
< |
pass1(in) /* first pass of picture file */ |
399 |
< |
FILE *in; |
398 |
> |
static void |
399 |
> |
pass1( /* first pass of picture file */ |
400 |
> |
FILE *infp |
401 |
> |
) |
402 |
|
{ |
403 |
|
int i; |
404 |
< |
COLOR *scan; |
404 |
> |
COLORV *scan; |
405 |
|
|
406 |
|
pass1init(); |
407 |
|
|
408 |
< |
scan = (COLOR *)malloc(xres*sizeof(COLOR)); |
408 |
> |
scan = (COLORV *)malloc(xres*NCSAMP*sizeof(COLORV)); |
409 |
|
if (scan == NULL) { |
410 |
|
fprintf(stderr, "%s: out of memory\n", progname); |
411 |
|
quit(1); |
412 |
|
} |
413 |
|
for (i = 0; i < yres; i++) { |
414 |
< |
if (freadscan(scan, xres, in) < 0) { |
415 |
< |
nrows = nrows * i / yres; /* adjust frame */ |
414 |
> |
if (freadsscan(scan, NCSAMP, xres, infp) < 0) { |
415 |
> |
nrows = (long)nrows * i / yres; /* adjust frame */ |
416 |
|
if (nrows <= 0) { |
417 |
|
fprintf(stderr, "%s: empty frame\n", progname); |
418 |
|
quit(1); |
419 |
|
} |
420 |
|
fprintf(stderr, "%s: warning - partial frame (%d%%)\n", |
421 |
< |
progname, 100*i/yres); |
421 |
> |
progname, (int)(100L*i/yres)); |
422 |
|
yres = i; |
423 |
+ |
y_r = (double)nrows/yres; |
424 |
+ |
estatus++; |
425 |
|
break; |
426 |
|
} |
427 |
|
pass1scan(scan, i); |
428 |
|
} |
429 |
< |
free((char *)scan); |
429 |
> |
free(scan); |
430 |
|
} |
431 |
|
|
432 |
|
|
433 |
< |
pass2(in) /* last pass on file, write to stdout */ |
434 |
< |
FILE *in; |
433 |
> |
static void |
434 |
> |
pass2( /* last pass on file, write to stdout */ |
435 |
> |
FILE *infp |
436 |
> |
) |
437 |
|
{ |
438 |
|
int yread; |
439 |
|
int ycent, xcent; |
440 |
|
int r, c; |
441 |
< |
|
441 |
> |
|
442 |
|
pass2init(); |
443 |
|
scan2init(); |
444 |
|
yread = 0; |
445 |
|
for (r = 0; r < nrows; r++) { |
446 |
< |
ycent = (long)r*yres/nrows; |
446 |
> |
ycent = (r+.5)*yres/nrows; |
447 |
|
while (yread <= ycent+yrad) { |
448 |
|
if (yread < yres) { |
449 |
< |
if (freadscan(scanin[yread%barsize], |
450 |
< |
xres, in) < 0) { |
449 |
> |
if (freadsscan(scanin[yread%barsize], |
450 |
> |
NCSAMP, xres, infp) < 0) { |
451 |
|
fprintf(stderr, |
452 |
< |
"%s: bad read (y=%d)\n", |
452 |
> |
"%s: truncated input (y=%d)\n", |
453 |
|
progname, yres-1-yread); |
454 |
|
quit(1); |
455 |
|
} |
457 |
|
} |
458 |
|
yread++; |
459 |
|
} |
460 |
+ |
if (obarsize > 0) /* => thresh > FTINY */ |
461 |
+ |
scan2sync(r); |
462 |
|
for (c = 0; c < ncols; c++) { |
463 |
< |
xcent = (long)c*xres/ncols; |
464 |
< |
if (rad <= 0.0) |
465 |
< |
dobox(scanout[c], xcent, ycent, c, r); |
463 |
> |
xcent = (c+.5)*xres/ncols; |
464 |
> |
if (thresh > FTINY) |
465 |
> |
dothresh(xcent, ycent, c, r); |
466 |
> |
else if (rad > FTINY) |
467 |
> |
dogauss(scanout+c*NCSAMP, xcent, ycent, c, r); |
468 |
|
else |
469 |
< |
dogauss(scanout[c], xcent, ycent, c, r); |
469 |
> |
dobox(scanout+c*NCSAMP, xcent, ycent, c, r); |
470 |
|
} |
471 |
< |
if (fwritescan(scanout, ncols, stdout) < 0) { |
471 |
> |
if (scanout != NULL && fwritesscan(scanout, NCSAMP, ncols, stdout) < 0) { |
472 |
|
fprintf(stderr, "%s: write error in pass2\n", progname); |
473 |
|
quit(1); |
474 |
|
} |
475 |
|
} |
476 |
+ |
/* skip leftover input */ |
477 |
+ |
while (yread < yres) { |
478 |
+ |
if (freadscolrs((uby8 *)tempbuffer(xres*(NCSAMP+1)), |
479 |
+ |
NCSAMP, xres, infp) < 0) |
480 |
+ |
break; |
481 |
+ |
yread++; |
482 |
+ |
} |
483 |
+ |
scan2flush(); /* flush output */ |
484 |
|
} |
485 |
|
|
486 |
|
|
487 |
< |
scan2init() /* prepare scanline arrays */ |
487 |
> |
static void |
488 |
> |
scan2init(void) /* prepare scanline arrays */ |
489 |
|
{ |
490 |
< |
double e; |
491 |
< |
register int i; |
490 |
> |
COLOR ctmp; |
491 |
> |
double d; |
492 |
> |
int i; |
493 |
|
|
494 |
< |
if (rad <= 0.0) { |
495 |
< |
xrad = xres/ncols/2 + 1; |
496 |
< |
yrad = yres/nrows/2 + 1; |
321 |
< |
} else { |
494 |
> |
xbrad = xres/ncols/2 + 1; |
495 |
> |
ybrad = yres/nrows/2 + 1; |
496 |
> |
if (rad > FTINY) { |
497 |
|
if (nrows >= yres && ncols >= xres) |
498 |
|
rad *= (y_r + x_c)/2.0; |
499 |
|
|
500 |
< |
xrad = CHECKRAD*rad/x_c + 1; |
501 |
< |
yrad = CHECKRAD*rad/y_r + 1; |
502 |
< |
|
500 |
> |
if (thresh > FTINY) { |
501 |
> |
orad = CHECKRAD*THRESHRAD*rad + 1; |
502 |
> |
xrad = orad/x_c + xbrad; |
503 |
> |
yrad = orad/y_r + ybrad; |
504 |
> |
obarsize = 2*orad + 1; |
505 |
> |
} else { |
506 |
> |
xrad = CHECKRAD*rad/x_c + 1; |
507 |
> |
yrad = CHECKRAD*rad/y_r + 1; |
508 |
> |
} |
509 |
|
initmask(); /* initialize filter table */ |
510 |
+ |
} else { |
511 |
+ |
xrad = xbrad; |
512 |
+ |
yrad = ybrad; |
513 |
|
} |
514 |
< |
barsize = 2 * yrad; |
515 |
< |
scanin = (COLOR **)malloc(barsize*sizeof(COLOR *)); |
514 |
> |
barsize = 2*yrad + 1; |
515 |
> |
scanin = (COLORV **)malloc(barsize*sizeof(COLORV *)); |
516 |
> |
if (scanin == NULL) |
517 |
> |
goto memerr; |
518 |
|
for (i = 0; i < barsize; i++) { |
519 |
< |
scanin[i] = (COLOR *)malloc(xres*sizeof(COLOR)); |
520 |
< |
if (scanin[i] == NULL) { |
521 |
< |
fprintf(stderr, "%s: out of memory\n", progname); |
522 |
< |
quit(1); |
519 |
> |
scanin[i] = (COLORV *)malloc(xres*NCSAMP*sizeof(COLORV)); |
520 |
> |
if (scanin[i] == NULL) |
521 |
> |
goto memerr; |
522 |
> |
} |
523 |
> |
if (obarsize > 0) { |
524 |
> |
scoutbar = (COLORV **)malloc(obarsize*sizeof(COLORV *)); |
525 |
> |
greybar = (float **)malloc(obarsize*sizeof(float *)); |
526 |
> |
if ((scoutbar == NULL) | (greybar == NULL)) |
527 |
> |
goto memerr; |
528 |
> |
for (i = 0; i < obarsize; i++) { |
529 |
> |
scoutbar[i] = (COLORV *)malloc(ncols*NCSAMP*sizeof(COLORV)); |
530 |
> |
greybar[i] = (float *)malloc(ncols*sizeof(float)); |
531 |
> |
if ((scoutbar[i] == NULL) | (greybar[i] == NULL)) |
532 |
> |
goto memerr; |
533 |
|
} |
534 |
+ |
} else { |
535 |
+ |
scanout = (COLORV *)malloc(ncols*NCSAMP*sizeof(COLORV)); |
536 |
+ |
if (scanout == NULL) |
537 |
+ |
goto memerr; |
538 |
|
} |
539 |
< |
scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
540 |
< |
if (scanout == NULL) { |
541 |
< |
fprintf(stderr, "%s: out of memory\n", progname); |
542 |
< |
quit(1); |
539 |
> |
/* record pixel aspect ratio */ |
540 |
> |
if (!correctaspect) { |
541 |
> |
d = order & YMAJOR ? x_c/y_r : y_r/x_c ; |
542 |
> |
if (!FEQ(d,1.0)) |
543 |
> |
fputaspect(d, stdout); |
544 |
|
} |
545 |
< |
e = bright(exposure); |
546 |
< |
if (e < 1-1e-7 || e > 1+1e-7) /* record exposure */ |
547 |
< |
printf("EXPOSURE=%e\n", e); |
545 |
> |
/* record exposure */ |
546 |
> |
d = bright(exposure); |
547 |
> |
if (!FEQ(d,1.0)) |
548 |
> |
fputexpos(d, stdout); |
549 |
> |
/* record color correction */ |
550 |
> |
copycolor(ctmp, exposure); |
551 |
> |
scalecolor(ctmp, 1.0/d); |
552 |
> |
if (!FEQ(colval(ctmp,RED),colval(ctmp,GRN)) || |
553 |
> |
!FEQ(colval(ctmp,GRN),colval(ctmp,BLU))) |
554 |
> |
fputcolcor(ctmp, stdout); |
555 |
|
printf("\n"); |
556 |
< |
fputresolu(YMAJOR|YDECR, ncols, nrows, stdout); /* resolution */ |
556 |
> |
/* write out resolution */ |
557 |
> |
fputresolu(order, ncols, nrows, stdout); |
558 |
> |
return; |
559 |
> |
memerr: |
560 |
> |
fprintf(stderr, "%s: out of memory\n", progname); |
561 |
> |
quit(1); |
562 |
|
} |
563 |
|
|
564 |
|
|
565 |
+ |
static void |
566 |
+ |
scan2sync( /* synchronize grey averages and output scan */ |
567 |
+ |
int r |
568 |
+ |
) |
569 |
+ |
{ |
570 |
+ |
static int nextrow = 0; |
571 |
+ |
SCOLOR ctmp; |
572 |
+ |
int ybot; |
573 |
+ |
int c; |
574 |
+ |
/* average input scanlines */ |
575 |
+ |
while (nextrow <= r+orad && nextrow < nrows) { |
576 |
+ |
ybot = (nextrow+.5)*yres/nrows; |
577 |
+ |
for (c = 0; c < ncols; c++) { |
578 |
+ |
dobox(ctmp, (int)((c+.5)*xres/ncols),ybot, c,nextrow); |
579 |
+ |
greybar[nextrow%obarsize][c] = (*ourbright)(ctmp); |
580 |
+ |
} |
581 |
+ |
/* and zero output scanline */ |
582 |
+ |
memset(scoutbar[nextrow%obarsize], 0, ncols*NCSAMP*sizeof(COLORV)); |
583 |
+ |
nextrow++; |
584 |
+ |
} |
585 |
+ |
/* point to top scanline for output */ |
586 |
+ |
if (r-orad >= 0) |
587 |
+ |
scanout = scoutbar[(r-orad)%obarsize]; |
588 |
+ |
else |
589 |
+ |
scanout = NULL; |
590 |
+ |
} |
591 |
+ |
|
592 |
+ |
|
593 |
+ |
static void |
594 |
+ |
scan2flush(void) /* flush output buffer */ |
595 |
+ |
{ |
596 |
+ |
int r; |
597 |
+ |
|
598 |
+ |
for (r = nrows-orad; r < nrows; r++) |
599 |
+ |
if (fwritesscan(scoutbar[r%obarsize], NCSAMP, ncols, stdout) < 0) |
600 |
+ |
break; |
601 |
+ |
if (fflush(stdout) < 0) { |
602 |
+ |
fprintf(stderr, "%s: write error at end of pass2\n", progname); |
603 |
+ |
quit(1); |
604 |
+ |
} |
605 |
+ |
} |
606 |
+ |
|
607 |
+ |
|
608 |
+ |
void |
609 |
|
quit(code) /* remove temporary file and exit */ |
610 |
|
int code; |
611 |
|
{ |