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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/* $Xorg: miLightLUT.c,v 1.3 2000/08/17 19:47:11 cpqbld Exp $ */
/*
Copyright 1990, 1991, 1998 The Open Group
All Rights Reserved.
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of The Open Group shall
not be used in advertising or otherwise to promote the sale, use or
other dealings in this Software without prior written authorization
from The Open Group.
Copyright 1990, 1991 by Sun Microsystems, Inc.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of Sun Microsystems
not be used in advertising or publicity pertaining to distribution
of the software without specific, written prior permission.
SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
*/
/* $XFree86: xc/programs/Xserver/PEX5/ddpex/mi/shared/miLightLUT.c,v 1.8 2001/01/17 22:12:33 dawes Exp $ */
#include "miLUT.h"
#include "miWks.h"
#include "miInfo.h"
#include "PEXErr.h"
#include "PEXprotost.h"
#include "pexos.h"
/* Level 4 Shared Resources */
/* Lookup Table Procedures */
extern unsigned colour_type_sizes[]; /* in miLUT.c */
/* definitions used by miLUTProcs.ci */
#define LUT_TYPE PEXLightLUT
/* devPriv data structure */
#define DD_LUT_ENTRY_STR ddLightEntry
/* table entry data structure */
#define MI_LUT_ENTRY_STR miLightEntry
/* pex data */
#define PEX_LUT_ENTRY_STR pexLightEntry
#define LUT_REND_DYN_BIT PEXDynLightTableContents
#define LUT_START_INDEX 1
#define LUT_DEFAULT_INDEX 1
#define LUT_0_DEFINABLE_ENTRIES 16
#define LUT_0_NUM_PREDEFINED 1
#define LUT_0_PREDEFINED_MIN 1
#define LUT_0_PREDEFINED_MAX 1
#define LUT_TABLE_START(pheader) (pheader)->plut.light
#define DYNAMIC LIGHT_TABLE_DYNAMIC
/* predefined entries table: change this to work with your devPriv data */
static DD_LUT_ENTRY_STR pdeLightEntry[LUT_0_NUM_PREDEFINED];
#define LUT_PDE_ENTRIES pdeLightEntry[0]
#define LUT_SET_PDE_ENTRY(pentry, pdeentry) \
(pentry)->entry = *(pdeentry); \
if ((pentry)->entry.lightType == PEXLightWcsSpot) \
(pentry)->cosSpreadAngle = \
cos((double)(pentry)->entry.spreadAngle); \
else (pentry)->cosSpreadAngle = 0.0
/* predefined entry 0 is set to the default values
* change the XXX_DEFAULT_YYY macros below to use something else
* if you don't want the default values defined in the pde table
*/
#define PDE_DEFAULT_ENTRY_NUM 0
#define LUT_DEFAULT_VALUES pdeLightEntry[PDE_DEFAULT_ENTRY_NUM]
#define LUT_SET_DEFAULT_VALUES(pentry) \
(pentry)->entry = LUT_DEFAULT_VALUES
/* which procedure definitions in miLUTProcs.h to use and their names
* take out USE flags if you're defining those procs in here
* but leave the name definitions
*/
#define LUT_USE_FREE
#define LUT_USE_INQ_PREDEF
#define LUT_USE_INQ_ENTRIES
#define LUT_USE_COPY
#define LUT_USE_INQ_INFO
#define LUT_USE_INQ_IND
#define LUT_USE_INQ_ENTRY
#define LUT_USE_SET_ENTRIES
#define LUT_USE_DEL_ENTRIES
#define LUT_USE_INQ_ENTRY_ADDRESS
#define LUT_USE_CREATE
#define LUT_USE_MOD_CALL_BACK
/* these three are redefined in miLUTProcs.h
#define LUT_FREE LightLUT_free
#define LUT_INQ_PREDEF LightLUT_inq_predef
#define LUT_INQ_ENTRIES LightLUT_inq_entries
*/
#define LUT_COPY LightLUT_copy
#define LUT_INQ_INFO LightLUT_inq_info
#define LUT_INQ_IND LightLUT_inq_ind
#define LUT_INQ_ENTRY LightLUT_inq_entry
#define LUT_SET_ENTRIES LightLUT_set_entries
#define LUT_DEL_ENTRIES LightLUT_del_entries
#define LUT_INQ_ENTRY_ADDRESS LightLUT_inq_entry_address
#define LUT_CREATE LightLUT_create
#define LUT_ENTRY_CHECK LightLUT_entry_check
#define LUT_COPY_PEX_MI LightLUT_copy_pex_to_mi
#define LUT_COPY_MI_PEX LightLUT_copy_mi_to_pex
#define LUT_MOD_CALL_BACK LightLUT_mod_call_back
/* copy from an mi entry to a pex entry and increment ppbuf */
ddpex43rtn
LUT_COPY_MI_PEX ( pheader, valueType, pentry, ppbuf )
miLUTHeader *pheader;
ddUSHORT valueType;
MI_LUT_ENTRY_STR *pentry;
ddPointer *ppbuf;
{
ddPointer pb = *ppbuf;
DD_LUT_ENTRY_STR *pdev_entry;
if (pentry == NULL)
pdev_entry = &(LUT_DEFAULT_VALUES);
else if (pentry->entry_info.status == MILUT_UNDEFINED)
pdev_entry = &(LUT_DEFAULT_VALUES);
else
pdev_entry = &pentry->entry;
mibcopy(pdev_entry, pb, sizeof(PEX_LUT_ENTRY_STR));
pb+= sizeof(PEX_LUT_ENTRY_STR);
MILUT_COPY_COLOUR(&pdev_entry->lightColour.colour,
pb, pdev_entry->lightColour.colourType);
pb += colour_type_sizes[(int)pdev_entry->lightColour.colourType];
*ppbuf = pb;
return(Success);
}
/* copy from a pex entry to an mi entry and increment ppsrc */
ddpex43rtn
LUT_COPY_PEX_MI ( pheader, ppsrc, pentry )
miLUTHeader *pheader;
ddPointer *ppsrc;
MI_LUT_ENTRY_STR *pentry;
{
ddPointer ps = *ppsrc;
mibcopy(ps, &(pentry->entry), sizeof(PEX_LUT_ENTRY_STR));
ps+= sizeof(PEX_LUT_ENTRY_STR);
MILUT_COPY_COLOUR(ps, &(pentry->entry.lightColour.colour),
pentry->entry.lightColour.colourType);
ps += colour_type_sizes[(int)pentry->entry.lightColour.colourType];
if (pentry->entry.lightType == PEXLightWcsSpot)
pentry->cosSpreadAngle = cos((double)pentry->entry.spreadAngle);
else pentry->cosSpreadAngle = 0.0;
*ppsrc = ps;
return(Success);
}
/* check for bad values and increment ppPexEntry */
ddpex43rtn
LUT_ENTRY_CHECK (pheader, ppPexEntry)
miLUTHeader *pheader;
PEX_LUT_ENTRY_STR **ppPexEntry;
{
extern miEnumType miLightTypeET[][SI_LIGHT_NUM];
ddPointer pe = (ddPointer)*ppPexEntry;
/* lightType: only use supported lights */
if (((*ppPexEntry)->lightType < miLightTypeET[pheader->drawType][0].index) ||
((*ppPexEntry)->lightType > miLightTypeET[pheader->drawType][SI_LIGHT_NUM - 1].index))
return(BadValue);
/* direction: any value OK. */
/* point: any value OK. */
/* concentration: any value OK. */
/* spreadAngle: must be in range [0,pi] */
if ((*ppPexEntry)->lightType == PEXLightWcsSpot)
if (((*ppPexEntry)->spreadAngle < 0.0) ||
((*ppPexEntry)->spreadAngle > MI_PI))
return(BadValue);
/* attenuaton1: any value OK. */
/* attenuaton2: any value OK. */
/* colours: only accept supported colour types */
if (MI_BADCOLOURTYPE((*ppPexEntry)->lightColour.colourType))
return(PEXERR(PEXColourTypeError));
pe += sizeof(PEX_LUT_ENTRY_STR) + colour_type_sizes[(int)(*ppPexEntry)->lightColour.colourType];
*ppPexEntry = (PEX_LUT_ENTRY_STR *)pe;
return(Success);
}
void
LightLUT_init_pde()
{
pdeLightEntry[0].lightType = PEXLightAmbient;
pdeLightEntry[0].direction.x = 0.0;
pdeLightEntry[0].direction.y = 0.0;
pdeLightEntry[0].direction.z = 0.0;
pdeLightEntry[0].point.x = 0.0;
pdeLightEntry[0].point.y = 0.0;
pdeLightEntry[0].point.z = 0.0;
pdeLightEntry[0].concentration = 0.0;
pdeLightEntry[0].spreadAngle = 0.0;
pdeLightEntry[0].attenuation1 = 0.0;
pdeLightEntry[0].attenuation2 = 0.0;
pdeLightEntry[0].lightColour.colourType = PEXRgbFloatColour;
pdeLightEntry[0].lightColour.colour.rgbFloat.red = 1.0;
pdeLightEntry[0].lightColour.colour.rgbFloat.green = 1.0;
pdeLightEntry[0].lightColour.colour.rgbFloat.blue = 1.0;
}
#include "miLUTProcs.ci"
|
