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
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
|
/*
* Mesa 3-D graphics library
* Version: 5.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* 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
* BRIAN PAUL 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.
*/
#include "glheader.h"
#include "colormac.h"
#include "context.h"
#include "macros.h"
#include "texstate.h"
#include "s_context.h"
#include "s_feedback.h"
#include "s_points.h"
#include "s_span.h"
#define RGBA 0x1
#define INDEX 0x2
#define SMOOTH 0x4
#define TEXTURE 0x8
#define SPECULAR 0x10
#define LARGE 0x20
#define ATTENUATE 0x40
#define SPRITE 0x80
/*
* CI points with size == 1.0
*/
#define FLAGS (INDEX)
#define NAME size1_ci_point
#include "s_pointtemp.h"
/*
* General CI points.
*/
#define FLAGS (INDEX | LARGE)
#define NAME general_ci_point
#include "s_pointtemp.h"
/*
* Antialiased CI points.
*/
#define FLAGS (INDEX | SMOOTH)
#define NAME antialiased_ci_point
#include "s_pointtemp.h"
/*
* Distance attenuated, general CI points.
*/
#define FLAGS (INDEX | ATTENUATE)
#define NAME atten_general_ci_point
#include "s_pointtemp.h"
/*
* RGBA points with size == 1.0
*/
#define FLAGS (RGBA)
#define NAME size1_rgba_point
#include "s_pointtemp.h"
/*
* General RGBA points.
*/
#define FLAGS (RGBA | LARGE)
#define NAME general_rgba_point
#include "s_pointtemp.h"
/*
* Antialiased RGBA points.
*/
#define FLAGS (RGBA | SMOOTH)
#define NAME antialiased_rgba_point
#include "s_pointtemp.h"
/*
* Textured RGBA points.
*/
#define FLAGS (RGBA | LARGE | TEXTURE | SPECULAR)
#define NAME textured_rgba_point
#include "s_pointtemp.h"
/*
* Antialiased points with texture mapping.
*/
#define FLAGS (RGBA | SMOOTH | TEXTURE | SPECULAR)
#define NAME antialiased_tex_rgba_point
#include "s_pointtemp.h"
/*
* Distance attenuated, general RGBA points.
*/
#define FLAGS (RGBA | ATTENUATE)
#define NAME atten_general_rgba_point
#include "s_pointtemp.h"
/*
* Distance attenuated, textured RGBA points.
*/
#define FLAGS (RGBA | ATTENUATE | TEXTURE | SPECULAR)
#define NAME atten_textured_rgba_point
#include "s_pointtemp.h"
/*
* Distance attenuated, antialiased points with or without texture mapping.
*/
#define FLAGS (RGBA | ATTENUATE | TEXTURE | SMOOTH)
#define NAME atten_antialiased_rgba_point
#include "s_pointtemp.h"
/*
* Sprite (textured point)
*/
#define FLAGS (RGBA | SPRITE)
#define NAME sprite_point
#include "s_pointtemp.h"
#define FLAGS (RGBA | ATTENUATE | SPRITE)
#define NAME atten_sprite_point
#include "s_pointtemp.h"
void _swrast_add_spec_terms_point( GLcontext *ctx,
const SWvertex *v0 )
{
SWvertex *ncv0 = (SWvertex *)v0;
GLchan c[1][4];
COPY_CHAN4( c[0], ncv0->color );
ACC_3V( ncv0->color, ncv0->specular );
SWRAST_CONTEXT(ctx)->SpecPoint( ctx, ncv0 );
COPY_CHAN4( ncv0->color, c[0] );
}
/* record the current point function name */
#ifdef DEBUG
static const char *pntFuncName = NULL;
#define USE(pntFunc) \
do { \
pntFuncName = #pntFunc; \
/*printf("%s\n", pntFuncName);*/ \
swrast->Point = pntFunc; \
} while (0)
#else
#define USE(pntFunc) swrast->Point = pntFunc
#endif
/*
* Examine the current context to determine which point drawing function
* should be used.
*/
void
_swrast_choose_point( GLcontext *ctx )
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLboolean rgbMode = ctx->Visual.rgbMode;
if (ctx->RenderMode==GL_RENDER) {
if (ctx->Point.PointSprite) {
/* GL_NV_point_sprite */
/* XXX this might not be good enough */
if (ctx->Point._Attenuated)
USE(atten_sprite_point);
else
USE(sprite_point);
}
else if (ctx->Point.SmoothFlag) {
/* Smooth points */
if (rgbMode) {
if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) {
USE(atten_antialiased_rgba_point);
}
else if (ctx->Texture._EnabledCoordUnits) {
USE(antialiased_tex_rgba_point);
}
else {
USE(antialiased_rgba_point);
}
}
else {
USE(antialiased_ci_point);
}
}
else if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) {
if (rgbMode) {
if (ctx->Texture._EnabledCoordUnits) {
if (ctx->Point.SmoothFlag) {
USE(atten_antialiased_rgba_point);
}
else {
USE(atten_textured_rgba_point);
}
}
else {
USE(atten_general_rgba_point);
}
}
else {
/* ci, atten */
USE(atten_general_ci_point);
}
}
else if (ctx->Texture._EnabledCoordUnits && rgbMode) {
/* textured */
USE(textured_rgba_point);
}
else if (ctx->Point.Size != 1.0) {
/* large points */
if (rgbMode) {
USE(general_rgba_point);
}
else {
USE(general_ci_point);
}
}
else {
/* single pixel points */
if (rgbMode) {
USE(size1_rgba_point);
}
else {
USE(size1_ci_point);
}
}
}
else if (ctx->RenderMode==GL_FEEDBACK) {
USE(_swrast_feedback_point);
}
else {
/* GL_SELECT mode */
USE(_swrast_select_point);
}
}
|
