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/* RCSid: $Id$ */ | 
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/* | 
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 *  rpaint.h - header file for image painting. | 
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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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#include  "driver.h" | 
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#include  "view.h" | 
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typedef short  COORD;           /* an image coordinate */ | 
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typedef struct pnode { | 
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        struct pnode  *kid;             /* children */ | 
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        COORD  x, y;                    /* position */ | 
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        COLOR  v;                       /* value */ | 
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}  PNODE;                       /* a paint node */ | 
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                                /* child ordering */ | 
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#define  DL             0               /* down left */ | 
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#define  DR             1               /* down right */ | 
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#define  UL             2               /* up left */ | 
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#define  UR             3               /* up right */ | 
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#define  newptree()     (PNODE *)calloc(4, sizeof(PNODE)) | 
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typedef struct { | 
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        COORD  l, d, r, u;              /* left, down, right, up */ | 
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}  RECT;                        /* a rectangle */ | 
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extern PNODE  ptrunk;           /* the base of the image tree */ | 
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extern VIEW  ourview;           /* current view parameters */ | 
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extern VIEW  oldview;           /* previous view parameters */ | 
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extern int  hresolu, vresolu;   /* image resolution */ | 
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extern int  greyscale;          /* map colors to brightness? */ | 
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extern int  pdepth;             /* image depth in current frame */ | 
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extern RECT  pframe;            /* current frame rectangle */ | 
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extern double  exposure;        /* exposure for scene */ | 
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extern struct driver  *dev;     /* driver functions */ | 
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#ifdef NOPROTO | 
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extern void     devopen(); | 
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extern void     devclose(); | 
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extern void     printdevices(); | 
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extern void     fillreserves(); | 
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extern void     freereserves(); | 
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extern void     command(); | 
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extern void     rsample(); | 
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extern int      refine(); | 
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extern void     getframe(); | 
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extern void     getrepaint(); | 
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extern void     getview(); | 
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extern void     lastview(); | 
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extern void     saveview(); | 
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extern void     loadview(); | 
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extern void     getaim(); | 
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extern void     getmove(); | 
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extern void     getrotate(); | 
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extern void     getpivot(); | 
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extern void     getexposure(); | 
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extern int      getparam(); | 
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extern void     setparam(); | 
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extern void     traceray(); | 
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extern void     writepict(); | 
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extern int      getrect(); | 
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extern int      getinterest(); | 
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extern float    *greyof(); | 
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extern void     paint(); | 
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extern void     newimage(); | 
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extern void     redraw(); | 
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extern void     repaint(); | 
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extern void     paintrec(); | 
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extern PNODE    *findrect(); | 
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extern void     scalepict(); | 
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extern void     getpictcolrs(); | 
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extern void     freepkids(); | 
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extern void     newview(); | 
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extern void     moveview(); | 
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extern void     pcopy(); | 
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extern void     zoomview(); | 
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#else | 
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                                /* defined in rview.c */ | 
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extern void     devopen(char *dname); | 
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extern void     devclose(void); | 
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extern void     printdevices(void); | 
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extern void     fillreserves(void); | 
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extern void     freereserves(void); | 
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extern void     command(char *prompt); | 
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extern void     rsample(void); | 
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extern int      refine(PNODE *p, int xmin, int ymin, | 
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                                int xmax, int ymax, int pd); | 
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                                /* defined in rv2.c */ | 
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extern void     getframe(char *s); | 
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extern void     getrepaint(char *s); | 
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extern void     getview(char *s); | 
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extern void     lastview(char *s); | 
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extern void     saveview(char *s); | 
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extern void     loadview(char *s); | 
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extern void     getaim(char *s); | 
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extern void     getmove(char *s); | 
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extern void     getrotate(char *s); | 
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extern void     getpivot(char *s); | 
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extern void     getexposure(char *s); | 
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extern int      getparam(char *str, char *dsc, int typ, void *p); | 
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extern void     setparam(char *s); | 
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extern void     traceray(char *s); | 
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extern void     writepict(char *s); | 
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                                /* defined in rv3.c */ | 
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extern int      getrect(char *s, RECT *r); | 
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extern int      getinterest(char *s, int direc, FVECT vec, double *mp); | 
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extern float    *greyof(COLOR col); | 
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extern void     paint(PNODE *p, int xmin, int ymin, int xmax, int ymax); | 
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extern void     newimage(void); | 
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extern void     redraw(void); | 
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extern void     repaint(int xmin, int ymin, int xmax, int ymax); | 
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extern void     paintrect(PNODE *p, int xmin, int ymin, | 
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                                int xmax, int ymax, RECT *r); | 
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extern PNODE    *findrect(int x, int y, PNODE *p, RECT *r, int pd); | 
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extern void     scalepict(PNODE *p, double sf); | 
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extern void     getpictcolrs(int yoff, COLR *scan, PNODE *p, | 
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                        int xsiz, int ysiz); | 
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extern void     freepkids(PNODE *p); | 
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extern void     newview(VIEW *vp); | 
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extern void     moveview(double angle, double elev, double mag, FVECT vc); | 
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extern void     pcopy(PNODE *p1, PNODE *p2); | 
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extern void     zoomview(VIEW *vp, double zf); | 
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#endif |