1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* Full recode: 2004-2006 Blender Foundation
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#ifndef ZBUF_H
#define ZBUF_H
struct RenderPart;
struct RenderLayer;
struct LampRen;
struct VlakRen;
struct ListBase;
struct ZSpan;
struct APixstrand;
struct StrandShadeCache;
void fillrect(int *rect, int x, int y, int val);
/**
* Converts a world coordinate into a homogenous coordinate in view
* coordinates.
*/
void projectvert(float *v1, float winmat[][4], float *adr);
void projectverto(float *v1, float winmat[][4], float *adr);
int testclip(float *v);
void zbuffer_shadow(struct Render *re, float winmat[][4], struct LampRen *lar, int *rectz, int size, float jitx, float jity);
void zbuffer_solid(struct RenderPart *pa, struct RenderLayer *rl, void (*fillfunc)(struct RenderPart*, struct ZSpan*, int, void*), void *data);
unsigned short *zbuffer_transp_shade(struct RenderPart *pa, struct RenderLayer *rl, float *pass, struct ListBase *psmlist);
void zbuffer_sss(RenderPart *pa, unsigned int lay, void *handle, void (*func)(void*, int, int, int, int, int));
int zbuffer_strands_abuf(struct Render *re, struct RenderPart *pa, struct RenderLayer *rl, struct APixstrand *apixbuf, struct ListBase *apsmbase, struct StrandShadeCache *cache);
typedef struct APixstr {
unsigned short mask[4]; /* jitter mask */
int z[4]; /* distance */
int p[4]; /* index */
int obi[4]; /* object instance */
short shadfac[4]; /* optimize storage for irregular shadow */
struct APixstr *next;
} APixstr;
typedef struct APixstrand {
unsigned short mask[4]; /* jitter mask */
int z[4]; /* distance */
int p[4]; /* index */
int obi[4]; /* object instance */
int seg[4]; /* for strands, segment number */
float u[4], v[4]; /* for strands, u,v coordinate in segment */
struct APixstrand *next;
} APixstrand;
typedef struct APixstrMain
{
struct APixstrMain *next, *prev;
void *ps;
} APixstrMain;
/* span fill in method, is also used to localize data for zbuffering */
typedef struct ZSpan {
int rectx, recty; /* range for clipping */
int miny1, maxy1, miny2, maxy2; /* actual filled in range */
float *minp1, *maxp1, *minp2, *maxp2; /* vertex pointers detect min/max range in */
float *span1, *span2;
float zmulx, zmuly, zofsx, zofsy; /* transform from hoco to zbuf co */
int *rectz, *arectz; /* zbuffers, arectz is for transparant */
int *rectz1; /* seconday z buffer for shadowbuffer (2nd closest z) */
int *rectp; /* polygon index buffer */
int *recto; /* object buffer */
int *rectmask; /* negative zmask buffer */
APixstr *apixbuf, *curpstr; /* apixbuf for transparent */
APixstrand *curpstrand; /* same for strands */
struct ListBase *apsmbase;
int polygon_offset; /* offset in Z */
float shad_alpha; /* copy from material, used by irregular shadbuf */
int mask, apsmcounter; /* in use by apixbuf */
int apstrandmcounter;
float clipcrop; /* for shadow, was in R global before */
void *sss_handle; /* used by sss */
void (*sss_func)(void *, int, int, int, int, int);
void (*zbuffunc)(struct ZSpan *, int, int, float *, float *, float *, float *);
void (*zbuflinefunc)(struct ZSpan *, int, int, float *, float *);
} ZSpan;
/* exported to shadbuf.c */
void zbufclip4(struct ZSpan *zspan, int obi, int zvlnr, float *f1, float *f2, float *f3, float *f4, int c1, int c2, int c3, int c4);
void zbuf_free_span(struct ZSpan *zspan);
/* to rendercore.c */
void zspan_scanconvert(struct ZSpan *zpan, void *handle, float *v1, float *v2, float *v3, void (*func)(void *, int, int, float, float) );
/* exported to edge render... */
void zbufclip(struct ZSpan *zspan, int obi, int zvlnr, float *f1, float *f2, float *f3, int c1, int c2, int c3);
void zbuf_alloc_span(struct ZSpan *zspan, int rectx, int recty, float clipcrop);
void zbufclipwire(struct ZSpan *zspan, int obi, int zvlnr, int ec, float *ho1, float *ho2, float *ho3, float *ho4, int c1, int c2, int c3, int c4);
/* exported to shadeinput.c */
void zbuf_make_winmat(Render *re, float duplimat[][4], float winmat[][4]);
void zbuf_render_project(float winmat[][4], float *co, float *ho);
#endif
|
