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root/Development/ray/src/hd/rhd_qtree.h

Comparing ray/src/hd/rhd_qtree.h (file contents):
Revision 3.4 by gregl, Mon Nov 24 15:15:21 1997 UTC vs.
Revision 3.14 by greg, Tue Mar 4 05:49:21 2003 UTC

#	Line 1 | Line 1
1	<	/* Copyright (c) 1997 Silicon Graphics, Inc. */
2	<
3	<	/* SCCSid "$SunId$ SGI" */
4	<
1	>	/* RCSid $Id$ */
2		/*
3		* Quadtree data structures for holodeck display drivers.
4		*/
5
6	+	#include "color.h"
7		#include "tonemap.h"
8		#include "rhdriver.h"
9	<	/* child ordering */
9	>
10		#define DL              0               /* down left */
11		#define DR              1               /* down right */
12		#define UL              2               /* up left */
#	Line 33 | Line 31 | typedef struct rtree {
31
32		extern struct rleaves {
33		float           (*wp)[3];       /* world intersection point array */
34	+	int4            *wd;            /* world direction array */
35		TMbright        *brt;           /* encoded brightness array */
36		BYTE            (*chr)[3];      /* encoded chrominance array */
37		BYTE            (*rgb)[3];      /* tone-mapped color array */
#	Line 42 | Line 41 | extern struct rleaves {
41		char            *base;          /* base of allocated memory */
42		}       qtL;                    /* our pile of leaves */
43
44	+	#define is_stump(t)     (!((t)->flgs & (BR_ANY|LF_ANY)))
45	+
46		extern RTREE    qtrunk;         /* trunk of quadtree */
47		extern double   qtDepthEps;     /* epsilon to compare depths (z fraction) */
48		extern int      qtMinNodesiz;   /* minimum node dimension (pixels) */
49
50	+	extern int      rayqleft;       /* number of rays to queue before flush */
51
52	<	/************************************************************************
53	<	* These driver support routines implement the dev_value() call, but
52	<	* require the following callbacks:
53	<
54	<	dev_paintr(rgb, x0, y0, x1, y1) : paint a rectangle
55	<	BYTE    rgb[3];                 : rectangle color
56	<	int     x0, y0, x1, y1;         : rectangle boundaries
57	<
58	<	Draws an open rectangle between [x0,x1) and [y0,y1) with the color rgb.
59	<	This function is called many times by qtUpdate(), qtRedraw() and qtReplant().
60	<
61	<	************************************************************************/
52	>	extern int4     encodedir();
53	>	extern double   fdir2diff(), dir2diff();

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