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/* RCSid $Id: rpaint.h,v 2.11 2013/11/13 23:45:54 greg Exp $ */
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/*
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* rpaint.h - header file for image painting.
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*/
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#ifndef _RAD_RPAINT_H_
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#define _RAD_RPAINT_H_
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#include "driver.h"
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#include "view.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(_WIN32) || defined(_WIN64)
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/* stupid Windows name collisions */
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#undef COORD
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#define COORD radCOORD
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#undef RECT
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#define RECT radRECT
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#endif
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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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COORD xmin, ymin, xmax, ymax; /* rectangle */
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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 newparam; /* parameter setting changed */
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extern char *dvcname; /* output device name */
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extern char rifname[]; /* rad input file name */
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extern int psample; /* pixel sample size */
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extern double maxdiff; /* max. sample difference */
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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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extern int nproc; /* number of processes */
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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 command(char *prompt);
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extern void rsample(void);
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extern int refine(PNODE *p, 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 getfocus(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 getorigin(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 int paint(PNODE *p);
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extern int waitrays(void);
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extern void newimage(char *s);
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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, RECT *r);
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extern PNODE *findrect(int x, int y, PNODE *p, int pd);
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extern void compavg(PNODE *p);
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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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#ifdef __cplusplus
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}
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#endif
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#endif /* _RAD_RPAINT_H_ */
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