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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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/* SCCSid "$SunId$ SGI" */ |
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/* RCSid $Id$ */ |
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/* |
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* Header for OpenGL cone drawing routines with depth buffer checks. |
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* |
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* Include after "standard.h" |
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*/ |
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#ifndef _RAD_RHD_ODRAW_H_ |
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#define _RAD_RHD_ODRAW_H_ |
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#undef NOPROTO |
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#define NOPROTO 1 |
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#include "color.h" |
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#include "tonemap.h" |
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#include "rhdriver.h" |
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#ifndef int4 |
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#define int4 int |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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extern struct ODview { |
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int sfirst, snext; /* first sample and first in next view */ |
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short hhi, vhi; /* screen image resolution */ |
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short hlow, vlow; /* block resolution */ |
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int n2redraw; /* approx. number of samples needing redraw */ |
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struct ODblock { |
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short nsamp; /* number of samples in block */ |
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short nused; /* number actually allocated */ |
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int free; /* index for block free list */ |
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float pthresh; /* proximity threshold */ |
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} *bmap; /* low resolution image map */ |
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int4 *emap; /* low resolution edge presence map */ |
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int4 *pmap; /* high resolution presence map */ |
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int32 *emap; /* low resolution edge presence map */ |
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int32 *pmap; /* high resolution presence map */ |
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GLfloat *dmap; /* high resolution depth map */ |
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} *odView; /* our view list */ |
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extern int odNViews; /* number of views in our list */ |
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extern TMstruct *tmGlobal; /* global tone-mapping structure */ |
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extern struct ODsamp { |
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union ODfunion { |
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float prox; /* viewpoint proximity */ |
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int4 next; /* next in free list */ |
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int32 next; /* next in free list */ |
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} *f; /* free list next or proximity */ |
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short (*ip)[2]; /* image position array */ |
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TMbright *brt; /* encoded brightness array */ |
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BYTE (*chr)[3]; /* encoded chrominance array */ |
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BYTE (*rgb)[3]; /* tone-mapped color array */ |
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int4 *redraw; /* redraw flags */ |
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uby8 (*chr)[3]; /* encoded chrominance array */ |
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uby8 (*rgb)[3]; /* tone-mapped color array */ |
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int32 *redraw; /* redraw flags */ |
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int nsamp; /* total number of samples */ |
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char *base; /* base of allocated memory */ |
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} odS; /* sample values */ |
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#define CLR4(f,i) FL4OP(f,i,&=~) |
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#define TGL4(f,i) FL4OP(f,i,^=) |
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#define FL4NELS(n) (((n)+0x1f)>>5) |
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#define CLR4ALL(f,n) bzero((char *)(f),FL4NELS(n)*sizeof(int4)) |
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#define CLR4ALL(f,n) memset((char *)(f),'\0',FL4NELS(n)*sizeof(int32)) |
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#endif |
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#define OMAXDEPTH 32000 /* maximum depth value */ |
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is non-zero, then clear the previous sample history. |
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**********************************************************************/ |
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/* rhd_geom.c */ |
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void gmNewGeom( char *file); |
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extern void gmEndGeom(void); |
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extern int gmDrawGeom(void); |
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extern void gmDrawPortals(int r, int g, int b, int a); |
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extern void gmDepthLimit( double dl[2], FVECT vorg, FVECT vdir); |
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extern void gmNewPortal(char *pflist); |
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extern int gmEndPortal(void); |
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/* rhd_odraw.c */ |
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extern int odInit(int n); |
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extern void odSample(COLR c, FVECT d, FVECT p); |
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extern void odRemap(int newhist); |
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extern void odRedrawAll(void); |
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extern void odRedraw(int vn, int hmin, int vmin, int hmax, int vmax); |
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extern void odDepthMap(int vn, GLfloat *dm); |
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extern void odUpdate(int vn); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* _RAD_RHD_ODRAW_H_ */ |
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