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/* Copyright (c) 1991 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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* ra_t16.c - program to convert between RADIANCE and |
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* Targa 16, 24 and 32-bit images. |
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* 11/2/88 Adapted from ra_t8.c |
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*/ |
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#include <stdio.h> |
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#include <math.h> |
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#include "platform.h" |
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#include "rtio.h" |
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#include "rtmisc.h" |
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#include "color.h" |
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#include "resolu.h" |
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#include "random.h" |
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#include "targa.h" |
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#define goodpic(h) (((h)->dataType==IM_RGB || (h)->dataType==IM_CRGB) \ |
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#define taralloc(h) (unsigned char *)emalloc((h)->x*(h)->y*(h)->dataBits/8) |
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#define readtarga(h,d,f) ((h)->dataBits==16 ? readt16(h,d,f) : \ |
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readt24(h,d,f)) |
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#define readtarga(h,d,f) ((h)->dataBits==16 ? \ |
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readt16(h,(unsigned short*)d,f) : readt24(h,d,f)) |
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#define writetarga(h,d,f) ((h)->dataBits==16 ? writet16(h,d,f) : \ |
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writet24(h,d,f)) |
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#define writetarga(h,d,f) ((h)->dataBits==16 ? \ |
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writet16(h,(unsigned short*)d,f) : writet24(h,d,f)) |
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extern char *ecalloc(), *emalloc(); |
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extern double atof(), pow(); |
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double gamma = 2.2; /* gamma correction */ |
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double gamcor = 2.2; /* gamma correction */ |
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int bradj = 0; /* brightness adjustment */ |
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char *progname; |
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char msg[128]; |
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static int getint2(FILE *fp); |
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static void putint2(int i, FILE *fp); |
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static void quiterr(char *err); |
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static int getthead(struct hdStruct *hp, char *ip, FILE *fp); |
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static int putthead(struct hdStruct *hp, char *ip, FILE *fp); |
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static void tg2ra(struct hdStruct *hp); |
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static void ra2tg(struct hdStruct *hp); |
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static void writet24(struct hdStruct *h, unsigned char *d, FILE *fp); |
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static void writet16(struct hdStruct *h, unsigned short *d, FILE *fp); |
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static void readt24(struct hdStruct *h, unsigned char *data, FILE *fp); |
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static void readt16(struct hdStruct *h, unsigned short *data, FILE *fp); |
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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int |
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main(int argc, char *argv[]) |
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{ |
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struct hdStruct head; |
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int reverse = 0; |
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int i; |
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SET_DEFAULT_BINARY(); |
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SET_FILE_BINARY(stdin); |
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SET_FILE_BINARY(stdout); |
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progname = argv[0]; |
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head.dataBits = 16; |
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if (argv[i][0] == '-') |
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switch (argv[i][1]) { |
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case 'g': |
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gamma = atof(argv[++i]); |
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gamcor = atof(argv[++i]); |
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break; |
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case 'r': |
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reverse = !reverse; |
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quiterr(msg); |
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} |
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/* set gamma */ |
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setcolrgam(gamma); |
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setcolrgam(gamcor); |
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/* convert */ |
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if (reverse) { |
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/* get header */ |
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if (!goodpic(&head)) |
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quiterr("incompatible format"); |
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/* put header */ |
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newheader("RADIANCE", stdout); |
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printargs(i, argv, stdout); |
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fputformat(COLRFMT, stdout); |
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putchar('\n'); |
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fputresolu(YMAJOR|YDECR, head.x, head.y, stdout); |
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fprtresolu(head.x, head.y, stdout); |
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/* convert file */ |
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tg2ra(&head); |
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} else { |
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if (checkheader(stdin, COLRFMT, NULL) < 0 || |
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fgetresolu(&head.x, &head.y, stdin) != (YMAJOR|YDECR)) |
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fgetresolu(&head.x, &head.y, stdin) < 0) |
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quiterr("bad picture file"); |
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/* assign header */ |
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head.textSize = 0; |
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} |
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int |
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getint2(fp) /* get a 2-byte positive integer */ |
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register FILE *fp; |
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static int |
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getint2( /* get a 2-byte positive integer */ |
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register FILE *fp |
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) |
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{ |
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register int b1, b2; |
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} |
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putint2(i, fp) /* put a 2-byte positive integer */ |
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register int i; |
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register FILE *fp; |
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static void |
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putint2( /* put a 2-byte positive integer */ |
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register int i, |
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register FILE *fp |
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) |
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{ |
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putc(i&0xff, fp); |
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putc(i>>8&0xff, fp); |
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} |
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quiterr(err) /* print message and exit */ |
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char *err; |
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static void |
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quiterr( /* print message and exit */ |
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char *err |
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) |
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{ |
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fprintf(stderr, "%s: %s\n", progname, err); |
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exit(1); |
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} |
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eputs(s) |
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char *s; |
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void |
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eputs( |
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char *s |
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) |
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{ |
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fputs(s, stderr); |
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} |
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quit(code) |
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int code; |
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void |
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quit( |
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int code |
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) |
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{ |
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exit(code); |
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} |
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getthead(hp, ip, fp) /* read header from input */ |
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struct hdStruct *hp; |
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char *ip; |
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register FILE *fp; |
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static int |
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getthead( /* read header from input */ |
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struct hdStruct *hp, |
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char *ip, |
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register FILE *fp |
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) |
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{ |
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int nidbytes; |
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} |
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putthead(hp, ip, fp) /* write header to output */ |
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struct hdStruct *hp; |
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char *ip; |
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register FILE *fp; |
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static int |
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putthead( /* write header to output */ |
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struct hdStruct *hp, |
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char *ip, |
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register FILE *fp |
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) |
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{ |
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if (ip != NULL) |
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putc(strlen(ip), fp); |
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} |
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tg2ra(hp) /* targa file to RADIANCE file */ |
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struct hdStruct *hp; |
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static void |
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tg2ra( /* targa file to RADIANCE file */ |
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struct hdStruct *hp |
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) |
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{ |
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COLR *scanline; |
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unsigned char *tarData; |
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if (fwritecolrs(scanline, hp->x, stdout) < 0) |
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quiterr("error writing RADIANCE file"); |
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} |
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free((char *)scanline); |
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free((char *)tarData); |
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free((void *)scanline); |
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free((void *)tarData); |
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} |
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ra2tg(hp) /* convert radiance to targa file */ |
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struct hdStruct *hp; |
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static void |
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ra2tg( /* convert radiance to targa file */ |
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struct hdStruct *hp |
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) |
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{ |
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register int i, j; |
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unsigned char *tarData; |
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/* write out targa data */ |
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writetarga(hp, tarData, stdout); |
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free((char *)inl); |
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free((char *)tarData); |
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free((void *)inl); |
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free((void *)tarData); |
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} |
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writet24(h, d, fp) /* write out 24-bit targa data */ |
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struct hdStruct *h; |
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unsigned char *d; |
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FILE *fp; |
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static void |
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writet24( /* write out 24-bit targa data */ |
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struct hdStruct *h, |
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unsigned char *d, |
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FILE *fp |
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) |
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{ |
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if (h->dataType == IM_RGB) { /* uncompressed */ |
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if (fwrite((char *)d, 3*h->x, h->y, fp) != h->y) |
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} |
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writet16(h, d, fp) /* write out 16-bit targa data */ |
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struct hdStruct *h; |
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register unsigned short *d; |
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FILE *fp; |
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static void |
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writet16( /* write out 16-bit targa data */ |
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struct hdStruct *h, |
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register unsigned short *d, |
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FILE *fp |
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) |
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{ |
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register int cnt; |
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} |
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readt24(h, data, fp) /* read in 24-bit targa data */ |
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register struct hdStruct *h; |
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unsigned char *data; |
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FILE *fp; |
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static void |
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readt24( /* read in 24-bit targa data */ |
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register struct hdStruct *h, |
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unsigned char *data, |
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FILE *fp |
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) |
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{ |
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register int cnt, c; |
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register unsigned char *dp; |
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} |
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readt16(h, data, fp) /* read in 16-bit targa data */ |
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register struct hdStruct *h; |
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unsigned short *data; |
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FILE *fp; |
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static void |
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readt16( /* read in 16-bit targa data */ |
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register struct hdStruct *h, |
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unsigned short *data, |
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FILE *fp |
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) |
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{ |
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register int cnt, c; |
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register unsigned short *dp; |