| 1 |
< |
/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
| 2 |
< |
|
| 3 |
< |
/* SCCSid "$SunId$ SGI" */ |
| 4 |
< |
|
| 1 |
> |
/* RCSid: $Id$ */ |
| 2 |
|
/* |
| 3 |
|
* Sample data structures for holodeck display drivers. |
| 4 |
+ |
* |
| 5 |
+ |
* Include after "standard.h" |
| 6 |
|
*/ |
| 7 |
+ |
#ifndef _RAD_RHD_SAMPLE_H_ |
| 8 |
+ |
#define _RAD_RHD_SAMPLE_H_ |
| 9 |
+ |
|
| 10 |
|
#include "color.h" |
| 11 |
|
#include "tonemap.h" |
| 12 |
|
#include "rhdriver.h" |
| 13 |
+ |
#include "object.h" |
| 14 |
|
|
| 15 |
< |
#ifndef int2 |
| 16 |
< |
#define int2 short |
| 15 |
> |
#ifdef __cplusplus |
| 16 |
> |
extern "C" { |
| 17 |
|
#endif |
| 15 |
– |
#ifndef int4 |
| 16 |
– |
#define int4 int |
| 17 |
– |
#endif |
| 18 |
|
|
| 19 |
|
#ifndef INVALID |
| 20 |
|
#define INVALID -1 |
| 21 |
|
#endif |
| 22 |
|
|
| 23 |
+ |
#define SFLOAT float |
| 24 |
+ |
|
| 25 |
+ |
typedef OBJECT S_ID; |
| 26 |
+ |
|
| 27 |
+ |
#define S_ID_MAX ((1 << ((sizeof(S_ID)<<3)-1))-1) |
| 28 |
+ |
|
| 29 |
|
typedef struct samp { |
| 30 |
< |
float (*wp)[3]; /* world intersection point array */ |
| 31 |
< |
int4 *wd; /* world direction array */ |
| 26 |
< |
#ifndef HP_VERSION |
| 30 |
> |
SFLOAT (*wp)[3]; /* world intersection point array */ |
| 31 |
> |
int32 *wd; /* world direction array */ |
| 32 |
|
TMbright *brt; /* encoded brightness array */ |
| 28 |
– |
#endif |
| 33 |
|
BYTE (*chr)[3]; /* encoded chrominance array */ |
| 34 |
|
BYTE (*rgb)[3]; /* tone-mapped color array */ |
| 35 |
+ |
int *info; /* Extra sample info */ |
| 36 |
+ |
int *info1; /* Extra sample info */ |
| 37 |
|
int max_samp; /* maximum number of samples */ |
| 38 |
< |
int max_base_pt; /* maximum number of aux points */ |
| 39 |
< |
int next_base_pt; /* next auxilliary point to add */ |
| 40 |
< |
int replace_samp; /* next sample to free */ |
| 38 |
> |
int max_base_pt; /* maximum number of aux points */ |
| 39 |
> |
S_ID next_base_pt; /* next auxilliary point to add */ |
| 40 |
> |
S_ID replace_samp; /* next sample to free */ |
| 41 |
|
int num_samp; /* current number of samples */ |
| 42 |
< |
int tone_map; /* pointer to next value(s)t tonemap*/ |
| 43 |
< |
int free_samp; /* Available sample */ |
| 42 |
> |
S_ID tone_map; /* pointer to next value(s)t tonemap*/ |
| 43 |
> |
S_ID free_samp; /* next free sample */ |
| 44 |
|
char *base; /* base of allocated memory */ |
| 45 |
|
} SAMP; |
| 46 |
|
|
| 50 |
|
#define S_BRT(s) ((s)->brt) |
| 51 |
|
#define S_CHR(s) ((s)->chr) |
| 52 |
|
#define S_RGB(s) ((s)->rgb) |
| 53 |
+ |
#define S_INFO(s) ((s)->info) |
| 54 |
+ |
#define S_INFO1(s) ((s)->info1) |
| 55 |
|
#define S_MAX_SAMP(s) ((s)->max_samp) |
| 56 |
|
#define S_MAX_BASE_PT(s) ((s)->max_base_pt) |
| 57 |
|
#define S_NEXT_BASE_PT(s) ((s)->next_base_pt) |
| 58 |
|
#define S_REPLACE_SAMP(s) ((s)->replace_samp) |
| 59 |
|
#define S_NUM_SAMP(s) ((s)->num_samp) |
| 60 |
|
#define S_TONE_MAP(s) ((s)->tone_map) |
| 61 |
< |
#define S_FREE_SAMP(s) ((s)->free_samp) |
| 61 |
> |
#define S_FREE_SAMP(s) ((s)->free_samp) |
| 62 |
|
#define S_BASE(s) ((s)->base) |
| 63 |
|
|
| 64 |
|
#define S_MAX_POINTS(s) ((s)->max_base_pt) |
| 66 |
|
#define S_NTH_W_DIR(s,n) (S_W_DIR(s)[(n)]) |
| 67 |
|
#define S_NTH_RGB(s,n) (S_RGB(s)[(n)]) |
| 68 |
|
#define S_NTH_CHR(s,n) (S_CHR(s)[(n)]) |
| 69 |
< |
#ifndef HP_VERSION |
| 69 |
> |
#define S_NTH_INFO(s,n) (S_INFO(s)[(n)]) |
| 70 |
> |
#define S_NTH_INFO1(s,n) (S_INFO1(s)[(n)]) |
| 71 |
|
#define S_NTH_BRT(s,n) (S_BRT(s)[(n)]) |
| 72 |
< |
#endif |
| 72 |
> |
|
| 73 |
|
/* Sample Flag macros */ |
| 74 |
|
#define S_IS_FLAG(s) IS_FLAG(samp_flag,s) |
| 75 |
|
#define S_SET_FLAG(s) SET_FLAG(samp_flag,s) |
| 76 |
|
#define S_CLR_FLAG(s) CLR_FLAG(samp_flag,s) |
| 77 |
|
|
| 78 |
|
#define S_NTH_NEXT(s,n) S_NTH_W_DIR(s,n) |
| 79 |
< |
#define sUnalloc_samp(s,n) (S_NTH_NEXT(s,n) = S_FREE_SAMP(s),S_FREE_SAMP(s)=n) |
| 79 |
> |
#define sUnalloc_samp(s,n) (S_NTH_NEXT(s,n)=S_FREE_SAMP(s),S_FREE_SAMP(s)=n) |
| 80 |
|
#define sClear_base_points(s) (S_NEXT_BASE_PT(s) = S_MAX_SAMP(s)) |
| 81 |
|
#define sClear(s) sInit(s) |
| 82 |
< |
/* Max allowed angle of sample dir from current view */ |
| 83 |
< |
#define MAXANG 20 |
| 84 |
< |
#define MAXDIFF2 ( MAXANG*MAXANG * (PI*PI/180./180.)) |
| 82 |
> |
/* MAXDIFF2 Max allowed cos angle squared of sample dir from current view */ |
| 83 |
> |
/* In terms of cos: if angle is 30: MAXDIFF2 = cos(30)^2, if difference |
| 84 |
> |
is greater than this point not accepted on rebuild |
| 85 |
> |
*/ |
| 86 |
> |
#define MAXDIFF2 0.75 |
| 87 |
> |
/* Max difference in direction for points at infinity: if over 45degrees |
| 88 |
> |
not accepted on rebuild cos(45) |
| 89 |
> |
*/ |
| 90 |
> |
#define MAXDIR 0.70710678 |
| 91 |
> |
#define MAXQUALITY 10000 /* Maximum quality for rendering rep */ |
| 92 |
|
|
| 93 |
|
extern SAMP rsL; |
| 94 |
|
extern double sDepthEps; /* epsilon to compare depths (z fraction) */ |
| 95 |
< |
extern int4 encodedir(); /* Encodes FVECT direction */ |
| 95 |
> |
extern int32 encodedir(); /* Encodes FVECT direction */ |
| 96 |
|
extern void decodedir(); /* Decodes dir-> FVECT */ |
| 97 |
|
extern double fdir2diff(), dir2diff(); /* Compare dir and FVECT */ |
| 98 |
< |
extern int4 *samp_flag; /* Per/sample flags s */ |
| 98 |
> |
extern int32 *samp_flag; /* Per/sample flags s */ |
| 99 |
|
|
| 100 |
|
/* These values are set by the driver, and used in the OGL call for glFrustum*/ |
| 101 |
|
extern double dev_zmin,dev_zmax; |
| 102 |
< |
|
| 102 |
> |
extern S_ID sAdd_base_point(); |
| 103 |
|
extern SAMP *sAlloc(); |
| 104 |
+ |
extern S_ID sAlloc_samp(); |
| 105 |
+ |
/* |
| 106 |
+ |
* int |
| 107 |
+ |
* smInit(n) : Initialize/clear data structures for n entries |
| 108 |
+ |
* int n; |
| 109 |
+ |
* |
| 110 |
+ |
* Initialize sampL and other data structures for at least n samples. |
| 111 |
+ |
* If n is 0, then free data structures. Return number actually allocated. |
| 112 |
+ |
* |
| 113 |
+ |
* |
| 114 |
+ |
* int |
| 115 |
+ |
* smNewSamp(c, p, v) : register new sample point and return index |
| 116 |
+ |
* COLR c; : pixel color (RGBE) |
| 117 |
+ |
* FVECT p; : world intersection point |
| 118 |
+ |
* FVECT v; : ray direction vector |
| 119 |
+ |
* |
| 120 |
+ |
* Add new sample point to data structures, removing old values as necessary. |
| 121 |
+ |
* New sample representation will be output in next call to smUpdate(). |
| 122 |
+ |
* |
| 123 |
+ |
* |
| 124 |
+ |
* int |
| 125 |
+ |
* smFindSamp(orig, dir): intersect ray with 3D rep. and find closest sample |
| 126 |
+ |
* FVECT orig, dir; |
| 127 |
+ |
* |
| 128 |
+ |
* Find the closest sample to the given ray. Return -1 on failure. |
| 129 |
+ |
* |
| 130 |
+ |
* |
| 131 |
+ |
* smClean() : display has been wiped clean |
| 132 |
+ |
* |
| 133 |
+ |
* Called after display has been effectively cleared, meaning that all |
| 134 |
+ |
* geometry must be resent down the pipeline in the next call to smUpdate(). |
| 135 |
+ |
* |
| 136 |
+ |
* |
| 137 |
+ |
* smUpdate(vp, qua) : update OpenGL output geometry for view vp |
| 138 |
+ |
* VIEW *vp; : desired view |
| 139 |
+ |
* int qua; : quality level (percentage on linear time scale) |
| 140 |
+ |
* |
| 141 |
+ |
* Draw new geometric representation using OpenGL calls. Assume that the |
| 142 |
+ |
* view has already been set up and the correct frame buffer has been |
| 143 |
+ |
* selected for drawing. The quality level is on a linear scale, where 100% |
| 144 |
+ |
* is full (final) quality. It is not necessary to redraw geometry that has |
| 145 |
+ |
* been output since the last call to smClean(). (The last view drawn will |
| 146 |
+ |
* be vp==&odev.v each time.) |
| 147 |
+ |
*/ |
| 148 |
|
|
| 149 |
|
|
| 150 |
< |
|
| 151 |
< |
|
| 150 |
> |
#ifdef __cplusplus |
| 151 |
> |
} |
| 152 |
> |
#endif |
| 153 |
> |
#endif /* _RAD_RHD_SAMPLE_H_ */ |
| 154 |
|
|
| 155 |
|
|
| 156 |
|
|
