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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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* Read and write image resolutions. |
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* |
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* Externals declared in resolu.h |
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*/ |
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|
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/* ==================================================================== |
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* The Radiance Software License, Version 1.0 |
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* |
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* Copyright (c) 1990 - 2002 The Regents of the University of California, |
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* through Lawrence Berkeley National Laboratory. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, |
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* if any, must include the following acknowledgment: |
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* "This product includes Radiance software |
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* (http://radsite.lbl.gov/) |
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* developed by the Lawrence Berkeley National Laboratory |
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* (http://www.lbl.gov/)." |
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* Alternately, this acknowledgment may appear in the software itself, |
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* if and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
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* and "The Regents of the University of California" must |
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* not be used to endorse or promote products derived from this |
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* software without prior written permission. For written |
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* permission, please contact [email protected]. |
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* |
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* 5. Products derived from this software may not be called "Radiance", |
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* nor may "Radiance" appear in their name, without prior written |
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* permission of Lawrence Berkeley National Laboratory. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
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* information on Lawrence Berkeley National Laboratory, please see |
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* <http://www.lbl.gov/>. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <time.h> |
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|
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#include "color.h" |
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#include "resolu.h" |
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|
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fputresolu(ord, xres, yres, fp) /* put x and y resolution */ |
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register int ord; |
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int xres, yres; |
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char resolu_buf[RESOLU_BUFLEN]; /* resolution line buffer */ |
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|
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|
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void |
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fputresolu(ord, sl, ns, fp) /* put out picture dimensions */ |
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int ord; /* scanline ordering */ |
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int sl, ns; /* scanline length and number */ |
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FILE *fp; |
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{ |
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if (ord&YMAJOR) |
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fprintf(fp, "%cY %d %cX %d\n", |
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ord&YDECR ? '-' : '+', yres, |
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ord&XDECR ? '-' : '+', xres); |
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else |
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fprintf(fp, "%cX %d %cY %d\n", |
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ord&XDECR ? '-' : '+', xres, |
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ord&YDECR ? '-' : '+', yres); |
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RESOLU rs; |
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|
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if ((rs.rt = ord) & YMAJOR) { |
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rs.xr = sl; |
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rs.yr = ns; |
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} else { |
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rs.xr = ns; |
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rs.yr = sl; |
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} |
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fputsresolu(&rs, fp); |
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} |
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|
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fgetresolu(xrp, yrp, fp) /* get x and y resolution */ |
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int *xrp, *yrp; |
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int |
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fgetresolu(sl, ns, fp) /* get picture dimensions */ |
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int *sl, *ns; /* scanline length and number */ |
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FILE *fp; |
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{ |
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char buf[64], *xndx, *yndx; |
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register char *cp; |
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register int ord; |
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RESOLU rs; |
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|
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if (fgets(buf, sizeof(buf), fp) == NULL) |
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if (!fgetsresolu(&rs, fp)) |
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return(-1); |
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if (rs.rt & YMAJOR) { |
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*sl = rs.xr; |
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*ns = rs.yr; |
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} else { |
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*sl = rs.yr; |
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*ns = rs.xr; |
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} |
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return(rs.rt); |
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} |
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|
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|
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char * |
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resolu2str(buf, rp) /* convert resolution struct to line */ |
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char *buf; |
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register RESOLU *rp; |
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{ |
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if (rp->rt&YMAJOR) |
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sprintf(buf, "%cY %d %cX %d\n", |
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rp->rt&YDECR ? '-' : '+', rp->yr, |
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rp->rt&XDECR ? '-' : '+', rp->xr); |
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else |
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sprintf(buf, "%cX %d %cY %d\n", |
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rp->rt&XDECR ? '-' : '+', rp->xr, |
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rp->rt&YDECR ? '-' : '+', rp->yr); |
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return(buf); |
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} |
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|
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|
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int |
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str2resolu(rp, buf) /* convert resolution line to struct */ |
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register RESOLU *rp; |
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char *buf; |
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{ |
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register char *xndx, *yndx; |
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register char *cp; |
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|
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if (buf == NULL) |
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return(0); |
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xndx = yndx = NULL; |
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for (cp = buf+1; *cp; cp++) |
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for (cp = buf; *cp; cp++) |
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if (*cp == 'X') |
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xndx = cp; |
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else if (*cp == 'Y') |
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yndx = cp; |
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if (xndx == NULL || yndx == NULL) |
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return(-1); |
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ord = 0; |
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if (xndx > yndx) ord |= YMAJOR; |
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if (xndx[-1] == '-') ord |= XDECR; |
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if (yndx[-1] == '-') ord |= YDECR; |
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if ((*xrp = atoi(xndx+1)) <= 0) |
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return(-1); |
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if ((*yrp = atoi(yndx+1)) <= 0) |
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return(-1); |
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return(ord); |
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return(0); |
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rp->rt = 0; |
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if (xndx > yndx) rp->rt |= YMAJOR; |
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if (xndx[-1] == '-') rp->rt |= XDECR; |
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if (yndx[-1] == '-') rp->rt |= YDECR; |
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if ((rp->xr = atoi(xndx+1)) <= 0) |
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return(0); |
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if ((rp->yr = atoi(yndx+1)) <= 0) |
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return(0); |
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return(1); |
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} |
