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
|
/*
* Polygon.java
* Copyright (C) 2003
*
* $Id: Polygon.java,v 1.1 2005-01-09 22:36:31 cawe Exp $
*/
/*
Copyright (C) 1997-2001 Id Software, Inc.
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.
*/
package jake2.render.fastjogl;
import java.nio.FloatBuffer;
import jake2.Defines;
import jake2.render.glpoly_t;
import jake2.util.Lib;
/**
* Polygon
*
* @author cwei
*/
public final class Polygon extends glpoly_t {
private final static int MAX_POLYS = 20000;
private final static int MAX_BUFFER_VERTICES = 120000;
// backup for s1 scrolling
private static float[] s1_old = new float[MAX_VERTICES];
private static FloatBuffer buffer = Lib.newFloatBuffer(MAX_BUFFER_VERTICES * STRIDE);
private static int bufferIndex = 0;
private static int polyCount = 0;
private static Polygon[] polyCache = new Polygon[MAX_POLYS];
static {
for (int i = 0; i < polyCache.length; i++) {
polyCache[i] = new Polygon();
}
}
static glpoly_t create(int numverts) {
Polygon poly = polyCache[polyCount++];
poly.clear();
poly.numverts = numverts;
poly.pos = bufferIndex;
bufferIndex += numverts;
return poly;
}
static void reset() {
polyCount = 0;
bufferIndex = 0;
}
static FloatBuffer getInterleavedBuffer() {
return (FloatBuffer)buffer.rewind();
}
private Polygon() {
}
private final void clear() {
next = null;
chain = null;
numverts = 0;
flags = 0;
}
// the interleaved buffer has the format:
// textureCoord0 (index 0, 1)
// vertex (index 2, 3, 4)
// textureCoord1 (index 5, 6)
public final float x(int index) {
return buffer.get((index + pos) * 7 + 2);
}
public final void x(int index, float value) {
buffer.put((index + pos) * 7 + 2, value);
}
public final float y(int index) {
return buffer.get((index + pos) * 7 + 3);
}
public final void y(int index, float value) {
buffer.put((index + pos) * 7 + 3, value);
}
public final float z(int index) {
return buffer.get((index + pos) * 7 + 4);
}
public final void z(int index, float value) {
buffer.put((index + pos) * 7 + 4, value);
}
public final float s1(int index) {
return buffer.get((index + pos) * 7 + 0);
}
public final void s1(int index, float value) {
buffer.put((index + pos) * 7 + 0, value);
}
public final float t1(int index) {
return buffer.get((index + pos) * 7 + 1);
}
public final void t1(int index, float value) {
buffer.put((index + pos) * 7 + 1, value);
}
public final float s2(int index) {
return buffer.get((index + pos) * 7 + 5);
}
public final void s2(int index, float value) {
buffer.put((index + pos) * 7 + 5, value);
}
public final float t2(int index) {
return buffer.get((index + pos) * 7 + 6);
}
public final void t2(int index, float value) {
buffer.put((index + pos) * 7 + 6, value);
}
public final void beginScrolling(float scroll) {
int index = pos * 7;
for (int i = 0; i < numverts; i++, index+=7) {
scroll += s1_old[i] = buffer.get(index);
buffer.put(index, scroll);
}
}
public final void endScrolling() {
int index = pos * 7;
for (int i = 0; i < numverts; i++, index+=7) {
buffer.put(index, s1_old[i]);
}
}
}
|
