src/px/ra_pixar.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/* ra_pixar.c */
/*
 * convert from RADIANCE image file to PIXAR image file.  (or vice versa)
 *
 *      David G. Jones  July 1989
 */
/* External functions called:
 *
 * header.c:
 *      getheader(fp,func);
 *      printargs(argc,argv,fp);
 * color.c:
 *      freadscan(scanline,len,fp);
 *      fwritescan(scanline,len,fp);
 */

#include <stdio.h>
#include <math.h>
#include  <time.h>

/* PIXAR */
#include <picio.h>
#include <pixeldef.h>
#include <chad.h>

/* RADIANCE (color.h conflicts with PIXAR includes) ugh!! */
#ifdef undef
#include "color.h"
#else
#define                 RED                     0
#define                 GRN                     1
#define                 BLU                     2
#define                 EXP                     3
#define                 colval(col,pri)         ((col)[pri])
#define                 setcolor(col,r,g,b)     \
        ((col)[RED]=(r),(col)[GRN]=(g),(col)[BLU]=(b))
typedef float  COLOR[3];        /* red, green, blue */
#endif
#include "resolu.h"


char                    *ProgramName;
int                     global_argc;
char                    **global_argv;

/* RADIANCE global variables */
FILE                    *radiance_fp            = NULL;
double                  radiance_pixel();

usage()
{
   fprintf(stderr,"usage:  %s radiance.pic pixar.pix\n",ProgramName);
   fprintf(stderr,"  or    %s -r pixar.pix radiance.pic\n",ProgramName);
   exit(1);
}


main(argc,argv)
int                     argc;
char                    *argv[];
{
   char                 *infile;
   char                 *outfile;
   int                  i;
   int                  reverse                 = 0;

   ProgramName=argv[0];
   if (argc < 3)
      usage();
   infile=argv[argc-2];
   outfile=argv[argc-1];
   for (i=1; i < argc-2 ; ++i)
      if (!strcmp(argv[i],"-r"))
         reverse=1;
      else
         usage();

   if (reverse)
   {
      global_argc=argc;
      global_argv=argv;
      pix_ra(infile,outfile);
   }
   else
      ra_pix(infile,outfile);
}

ra_pix(infile,outfile)
char                    *infile;
char                    *outfile;
{
/* PIXAR variables */
   RGBAPixelType        *pixar_scanline;
   PFILE                *out;
/* RADIANCE variables */
   COLOR                *radiance_scanline;
/* regular variables */
   int                  width;
   int                  height;
   register int         x;
   register int         y;

/* get width, height from radiance file */
   radiance_getsize(infile,&width,&height);
   radiance_scanline=(COLOR *)malloc(width*sizeof(COLOR));
   pixar_scanline=(RGBAPixelType *)malloc(width*sizeof(RGBAPixelType));
   if (!radiance_scanline || !pixar_scanline)
   {
      fprintf(stderr,"not enough memory?\n");
      perror("malloc");
      exit(1);
   }
   bzero(pixar_scanline,width*sizeof(RGBAPixelType));

   PicSetForce(1);
   PicSetPsize(width,height);
   PicSetTsize(width,height);
   PicSetPformat(PF_RGB);
   PicSetPstorage(PS_12DUMP);
   PicSetPmatting(PM_NONE);
   PicSetOffset(0,0);
   PicSetLabel("converted from RADIANCE format by ra_pixar");
   if (!(out=PicCreat(outfile,0666)))
   {
      fprintf(stderr,"can't open PIXAR image file `%s'\n",outfile);
      perror("open");
      exit(1);
   }

   picPreEncodeScanline(out,0);
   for (y=0; y < height ; ++y)
   {
      radiance_readscanline(radiance_scanline,width);
      for (x=0; x < width ; ++x)
      {
         SetRGBColor(&pixar_scanline[x],
            DBL2PXL(radiance_pixel(radiance_scanline[x],RED)),
            DBL2PXL(radiance_pixel(radiance_scanline[x],GRN)),
            DBL2PXL(radiance_pixel(radiance_scanline[x],BLU)));
      }
      picEncodeScanline(out,pixar_scanline);
   }
   picPostEncodeScanline(out);
   fclose(radiance_fp);
   PicClose(out);
}


radiance_getsize(filename,w,h)
char            *filename;
int             *w;
int             *h;
{
   if (!(radiance_fp=fopen(filename,"r")))
   {
      fprintf(stderr,"can't open RADIANCE image file `%s'\n",filename);
      perror("open");
      exit(1);
   }
   getheader(radiance_fp,NULL);
   if (fgetresolu(w, h, radiance_fp) < 0)
   {
      fprintf(stderr,"bad RADIANCE format\n");
      exit(1);
   }
}


radiance_readscanline(buf,x)
COLOR                   *buf;
int                     x;
{
   if (freadscan(buf,x,radiance_fp) < 0)
   {
      fprintf(stderr,"read error?\n");
      perror("fread");
      exit(1);
   }
}


double radiance_pixel(pixel,i)
COLOR                   pixel;
int                     i;
{
   double               value;

   value=colval(pixel,i);
   if (value < 0.0)
      return 0.0;
   else if (value> 1.0)
      return 1.0;
   return value;
}

pix_ra(infile,outfile)
char                    *infile;
char                    *outfile;
{
/* PIXAR variables */
   RGBAPixelType        *pixar_scanline;
   PFILE                *in;
/* RADIANCE variables */
   COLOR                *radiance_scanline;
   FILE                 *out;
/* regular variables */
   int                  width;
   int                  height;
   register int         x;
   register int         y;

   if (!(in=PicOpen(infile,"r")))
   {
      fprintf(stderr,"can't open PIXAR image file `%s'\n",infile);
      perror("open");
      exit(1);
   }
   if (!(out=fopen(outfile,"w")))
   {
      fprintf(stderr,"can't open RADIANCE image file `%s'\n",outfile);
      perror("open");
      exit(1);
   }

/* get width, height from PIXAR file */
   width=in->Pwidth;
   height=in->Pheight;

/* allocate scan line space */
   radiance_scanline=(COLOR *)malloc(width*sizeof(COLOR));
   pixar_scanline=(RGBAPixelType *)malloc(width*sizeof(RGBAPixelType));
   if (!radiance_scanline || !pixar_scanline)
   {
      fprintf(stderr,"not enough memory?\n");
      perror("malloc");
      exit(1);
   }

/* write out the RADIANCE header */
   radiance_writeheader(out,width,height);

   picPreDecodeScanline(in,0);
   for (y=0; y < height ; ++y)
   {
      picDecodeScanline(in,pixar_scanline);
      for (x=0; x < width ; ++x)
      {
         setcolor(radiance_scanline[x],
            PXL2DBL(pixar_scanline[x].Red),
            PXL2DBL(pixar_scanline[x].Green),
            PXL2DBL(pixar_scanline[x].Blue));
      }
      radiance_writescanline(out,radiance_scanline,width);
   }
   picPostDecodeScanline(in);
   PicClose(in);
   fclose(out);
}


radiance_writeheader(fp,x,y)
FILE            *fp;
int             x;
int             y;
{
   printargs(global_argc,global_argv,fp);
   fputc('\n',fp);
   fprtresolu(x, y, fp);
   fflush(fp);
}


radiance_writescanline(fp,buf,x)
FILE                    *fp;
COLOR                   *buf;
int                     x;
{
   if (fwritescan(buf,x,fp) < 0)
   {
      fprintf(stderr,"write error?\n");
      perror("fwrite");
      exit(1);
   }
}
Revision:	2.2
Committed:	Sat Feb 22 02:07:27 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 2.1:	+2 -4 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	1.3	#ifndef lint
2	greg	2.2	static const char RCSid[] = "$Id$";
3	greg	1.3	#endif
4	greg	1.1	/* ra_pixar.c */
5			/*
6			* convert from RADIANCE image file to PIXAR image file. (or vice versa)
7			*
8			* David G. Jones July 1989
9			*/
10			/* External functions called:
11			*
12			* header.c:
13			* getheader(fp,func);
14			* printargs(argc,argv,fp);
15			* color.c:
16			* freadscan(scanline,len,fp);
17			* fwritescan(scanline,len,fp);
18			*/
19
20			#include <stdio.h>
21			#include <math.h>
22	greg	2.2	#include <time.h>
23	greg	1.1
24			/* PIXAR */
25			#include <picio.h>
26			#include <pixeldef.h>
27			#include <chad.h>
28
29			/* RADIANCE (color.h conflicts with PIXAR includes) ugh!! */
30			#ifdef undef
31			#include "color.h"
32			#else
33			#define RED 0
34			#define GRN 1
35			#define BLU 2
36			#define EXP 3
37			#define colval(col,pri) ((col)[pri])
38			#define setcolor(col,r,g,b) \
39			((col)[RED]=(r),(col)[GRN]=(g),(col)[BLU]=(b))
40			typedef float COLOR[3]; /* red, green, blue */
41			#endif
42	greg	1.4	#include "resolu.h"
43	greg	1.1
44
45			char *ProgramName;
46			int global_argc;
47			char **global_argv;
48
49			/* RADIANCE global variables */
50			FILE *radiance_fp = NULL;
51			double radiance_pixel();
52
53			usage()
54			{
55			fprintf(stderr,"usage: %s radiance.pic pixar.pix\n",ProgramName);
56			fprintf(stderr," or %s -r pixar.pix radiance.pic\n",ProgramName);
57			exit(1);
58			}
59
60
61			main(argc,argv)
62			int argc;
63			char *argv[];
64			{
65			char *infile;
66			char *outfile;
67			int i;
68			int reverse = 0;
69
70			ProgramName=argv[0];
71			if (argc < 3)
72			usage();
73			infile=argv[argc-2];
74			outfile=argv[argc-1];
75			for (i=1; i < argc-2 ; ++i)
76			if (!strcmp(argv[i],"-r"))
77			reverse=1;
78			else
79			usage();
80
81			if (reverse)
82			{
83			global_argc=argc;
84			global_argv=argv;
85			pix_ra(infile,outfile);
86			}
87			else
88			ra_pix(infile,outfile);
89			}
90
91			ra_pix(infile,outfile)
92			char *infile;
93			char *outfile;
94			{
95			/* PIXAR variables */
96			RGBAPixelType *pixar_scanline;
97			PFILE *out;
98			/* RADIANCE variables */
99			COLOR *radiance_scanline;
100			/* regular variables */
101			int width;
102			int height;
103			register int x;
104			register int y;
105
106			/* get width, height from radiance file */
107			radiance_getsize(infile,&width,&height);
108			radiance_scanline=(COLOR )malloc(widthsizeof(COLOR));
109			pixar_scanline=(RGBAPixelType )malloc(widthsizeof(RGBAPixelType));
110			if (!radiance_scanline \|\| !pixar_scanline)
111			{
112			fprintf(stderr,"not enough memory?\n");
113			perror("malloc");
114			exit(1);
115			}
116			bzero(pixar_scanline,width*sizeof(RGBAPixelType));
117
118			PicSetForce(1);
119			PicSetPsize(width,height);
120			PicSetTsize(width,height);
121			PicSetPformat(PF_RGB);
122			PicSetPstorage(PS_12DUMP);
123			PicSetPmatting(PM_NONE);
124			PicSetOffset(0,0);
125			PicSetLabel("converted from RADIANCE format by ra_pixar");
126			if (!(out=PicCreat(outfile,0666)))
127			{
128			fprintf(stderr,"can't open PIXAR image file `%s'\n",outfile);
129			perror("open");
130			exit(1);
131			}
132
133			picPreEncodeScanline(out,0);
134			for (y=0; y < height ; ++y)
135			{
136			radiance_readscanline(radiance_scanline,width);
137			for (x=0; x < width ; ++x)
138			{
139			SetRGBColor(&pixar_scanline[x],
140			DBL2PXL(radiance_pixel(radiance_scanline[x],RED)),
141			DBL2PXL(radiance_pixel(radiance_scanline[x],GRN)),
142			DBL2PXL(radiance_pixel(radiance_scanline[x],BLU)));
143			}
144			picEncodeScanline(out,pixar_scanline);
145			}
146			picPostEncodeScanline(out);
147			fclose(radiance_fp);
148			PicClose(out);
149			}
150
151
152			radiance_getsize(filename,w,h)
153			char *filename;
154			int *w;
155			int *h;
156			{
157			if (!(radiance_fp=fopen(filename,"r")))
158			{
159			fprintf(stderr,"can't open RADIANCE image file `%s'\n",filename);
160			perror("open");
161			exit(1);
162			}
163			getheader(radiance_fp,NULL);
164	greg	1.4	if (fgetresolu(w, h, radiance_fp) < 0)
165	greg	1.1	{
166			fprintf(stderr,"bad RADIANCE format\n");
167			exit(1);
168			}
169			}
170
171
172			radiance_readscanline(buf,x)
173			COLOR *buf;
174			int x;
175			{
176			if (freadscan(buf,x,radiance_fp) < 0)
177			{
178			fprintf(stderr,"read error?\n");
179			perror("fread");
180			exit(1);
181			}
182			}
183
184
185			double radiance_pixel(pixel,i)
186			COLOR pixel;
187			int i;
188			{
189			double value;
190
191			value=colval(pixel,i);
192			if (value < 0.0)
193			return 0.0;
194			else if (value> 1.0)
195			return 1.0;
196			return value;
197			}
198
199			pix_ra(infile,outfile)
200			char *infile;
201			char *outfile;
202			{
203			/* PIXAR variables */
204			RGBAPixelType *pixar_scanline;
205			PFILE *in;
206			/* RADIANCE variables */
207			COLOR *radiance_scanline;
208			FILE *out;
209			/* regular variables */
210			int width;
211			int height;
212			register int x;
213			register int y;
214
215			if (!(in=PicOpen(infile,"r")))
216			{
217			fprintf(stderr,"can't open PIXAR image file `%s'\n",infile);
218			perror("open");
219			exit(1);
220			}
221			if (!(out=fopen(outfile,"w")))
222			{
223			fprintf(stderr,"can't open RADIANCE image file `%s'\n",outfile);
224			perror("open");
225			exit(1);
226			}
227
228			/* get width, height from PIXAR file */
229			width=in->Pwidth;
230			height=in->Pheight;
231
232			/* allocate scan line space */
233			radiance_scanline=(COLOR )malloc(widthsizeof(COLOR));
234			pixar_scanline=(RGBAPixelType )malloc(widthsizeof(RGBAPixelType));
235			if (!radiance_scanline \|\| !pixar_scanline)
236			{
237			fprintf(stderr,"not enough memory?\n");
238			perror("malloc");
239			exit(1);
240			}
241
242			/* write out the RADIANCE header */
243			radiance_writeheader(out,width,height);
244
245			picPreDecodeScanline(in,0);
246			for (y=0; y < height ; ++y)
247			{
248			picDecodeScanline(in,pixar_scanline);
249			for (x=0; x < width ; ++x)
250			{
251			setcolor(radiance_scanline[x],
252			PXL2DBL(pixar_scanline[x].Red),
253			PXL2DBL(pixar_scanline[x].Green),
254			PXL2DBL(pixar_scanline[x].Blue));
255			}
256			radiance_writescanline(out,radiance_scanline,width);
257			}
258			picPostDecodeScanline(in);
259			PicClose(in);
260			fclose(out);
261			}
262
263
264			radiance_writeheader(fp,x,y)
265			FILE *fp;
266			int x;
267			int y;
268			{
269			printargs(global_argc,global_argv,fp);
270			fputc('\n',fp);
271	greg	1.4	fprtresolu(x, y, fp);
272	greg	1.1	fflush(fp);
273			}
274
275
276			radiance_writescanline(fp,buf,x)
277			FILE *fp;
278			COLOR *buf;
279			int x;
280			{
281			if (fwritescan(buf,x,fp) < 0)
282			{
283			fprintf(stderr,"write error?\n");
284			perror("fwrite");
285			exit(1);
286			}
287			}