Subversion Repositories shark

Rev

Rev 55 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
55 pj 1 
/* $Id: light.h,v 1.1 2003-02-28 11:42:03 pj Exp $ */
2 
 
3 
/*
4 
 * Mesa 3-D graphics library
5 
 * Version:  3.5
6 
 *
7 
 * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
8 
 *
9 
 * Permission is hereby granted, free of charge, to any person obtaining a
10 
 * copy of this software and associated documentation files (the "Software"),
11 
 * to deal in the Software without restriction, including without limitation
12 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 
 * and/or sell copies of the Software, and to permit persons to whom the
14 
 * Software is furnished to do so, subject to the following conditions:
15 
 *
16 
 * The above copyright notice and this permission notice shall be included
17 
 * in all copies or substantial portions of the Software.
18 
 *
19 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22 
 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 
 */
26 
 
27 
 
28 
#ifndef LIGHT_H
29 
#define LIGHT_H
30 
 
31 
 
32 
#include "mtypes.h"
33 
 
34 
 
35 
extern void
36 
_mesa_ShadeModel( GLenum mode );
37 
 
38 
extern void
39 
_mesa_ColorMaterial( GLenum face, GLenum mode );
40 
 
41 
extern void
42 
_mesa_Lightf( GLenum light, GLenum pname, GLfloat param );
43 
 
44 
extern void
45 
_mesa_Lightfv( GLenum light, GLenum pname, const GLfloat *params );
46 
 
47 
extern void
48 
_mesa_Lightiv( GLenum light, GLenum pname, const GLint *params );
49 
 
50 
extern void
51 
_mesa_Lighti( GLenum light, GLenum pname, GLint param );
52 
 
53 
extern void
54 
_mesa_LightModelf( GLenum pname, GLfloat param );
55 
 
56 
extern void
57 
_mesa_LightModelfv( GLenum pname, const GLfloat *params );
58 
 
59 
extern void
60 
_mesa_LightModeli( GLenum pname, GLint param );
61 
 
62 
extern void
63 
_mesa_LightModeliv( GLenum pname, const GLint *params );
64 
 
65 
extern void
66 
_mesa_GetLightfv( GLenum light, GLenum pname, GLfloat *params );
67 
 
68 
extern void
69 
_mesa_GetLightiv( GLenum light, GLenum pname, GLint *params );
70 
 
71 
extern void
72 
_mesa_GetMaterialfv( GLenum face, GLenum pname, GLfloat *params );
73 
 
74 
extern void
75 
_mesa_GetMaterialiv( GLenum face, GLenum pname, GLint *params );
76 
 
77 
 
78 
/* Lerp between adjacent values in the f(x) lookup table, giving a
79 
 * continuous function, with adequeate overall accuracy.  (Though
80 
 * still pretty good compared to a straight lookup).
81 
 * Result should be a GLfloat.
82 
 */
83 
#define GET_SHINE_TAB_ENTRY( table, dp, result )                        \
84 
do {                                                                    \
85 
   struct gl_shine_tab *_tab = table;                                   \
86 
   float f = (dp * (SHINE_TABLE_SIZE-1));                               \
87 
   int k = (int) f;                                                     \
88 
   if (k > SHINE_TABLE_SIZE-2)                                          \
89 
      result = (GLfloat) _mesa_pow( dp, _tab->shininess );              \
90 
   else                                                                 \
91 
      result = _tab->tab[k] + (f-k)*(_tab->tab[k+1]-_tab->tab[k]);      \
92 
} while (0)
93 
 
94 
 
95 
 
96 
extern GLuint _mesa_material_bitmask( GLcontext *ctx,
97 
                                      GLenum face, GLenum pname,
98 
                                      GLuint legal,
99 
                                      const char * );
100 
 
101 
extern void _mesa_invalidate_spot_exp_table( struct gl_light *l );
102 
 
103 
extern void _mesa_invalidate_shine_table( GLcontext *ctx, GLuint i );
104 
 
105 
extern void _mesa_validate_all_lighting_tables( GLcontext *ctx );
106 
 
107 
extern void _mesa_update_lighting( GLcontext *ctx );
108 
 
109 
extern void _mesa_compute_light_positions( GLcontext *ctx );
110 
 
111 
extern void _mesa_update_material( GLcontext *ctx,
112 
                                   const struct gl_material src[2],
113 
                                   GLuint bitmask );
114 
 
115 
extern void _mesa_copy_material_pairs( struct gl_material dst[2],
116 
                                       const struct gl_material src[2],
117 
                                       GLuint bitmask );
118 
 
119 
extern void _mesa_update_color_material( GLcontext *ctx,
120 
                                         const GLfloat rgba[4] );
121 
 
122 
 
123 
#endif