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
|
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.renderscript;
import java.io.IOException;
import java.io.InputStream;
import android.content.res.Resources;
import android.os.Bundle;
import android.util.Config;
import android.util.Log;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
/**
* Sampler object which defines how data is extracted from textures. Samplers
* are attached to Program objects (currently only fragment) when those objects
* need to access texture data.
**/
public class Sampler extends BaseObj {
public enum Value {
NEAREST (0),
LINEAR (1),
LINEAR_MIP_LINEAR (2),
LINEAR_MIP_NEAREST (5),
WRAP (3),
CLAMP (4);
int mID;
Value(int id) {
mID = id;
}
}
Sampler(int id, RenderScript rs) {
super(id, rs);
}
/**
* Retrieve a sampler with min and mag set to nearest and wrap modes set to
* clamp.
*
* @param rs
*
* @return Sampler
*/
public static Sampler CLAMP_NEAREST(RenderScript rs) {
if(rs.mSampler_CLAMP_NEAREST == null) {
Builder b = new Builder(rs);
b.setMinification(Value.NEAREST);
b.setMagnification(Value.NEAREST);
b.setWrapS(Value.CLAMP);
b.setWrapT(Value.CLAMP);
rs.mSampler_CLAMP_NEAREST = b.create();
}
return rs.mSampler_CLAMP_NEAREST;
}
/**
* Retrieve a sampler with min and mag set to linear and wrap modes set to
* clamp.
*
* @param rs
*
* @return Sampler
*/
public static Sampler CLAMP_LINEAR(RenderScript rs) {
if(rs.mSampler_CLAMP_LINEAR == null) {
Builder b = new Builder(rs);
b.setMinification(Value.LINEAR);
b.setMagnification(Value.LINEAR);
b.setWrapS(Value.CLAMP);
b.setWrapT(Value.CLAMP);
rs.mSampler_CLAMP_LINEAR = b.create();
}
return rs.mSampler_CLAMP_LINEAR;
}
/**
* Retrieve a sampler with ag set to linear, min linear mipmap linear, and
* to and wrap modes set to clamp.
*
* @param rs
*
* @return Sampler
*/
public static Sampler CLAMP_LINEAR_MIP_LINEAR(RenderScript rs) {
if(rs.mSampler_CLAMP_LINEAR_MIP_LINEAR == null) {
Builder b = new Builder(rs);
b.setMinification(Value.LINEAR_MIP_LINEAR);
b.setMagnification(Value.LINEAR);
b.setWrapS(Value.CLAMP);
b.setWrapT(Value.CLAMP);
rs.mSampler_CLAMP_LINEAR_MIP_LINEAR = b.create();
}
return rs.mSampler_CLAMP_LINEAR_MIP_LINEAR;
}
/**
* Retrieve a sampler with min and mag set to nearest and wrap modes set to
* wrap.
*
* @param rs
*
* @return Sampler
*/
public static Sampler WRAP_NEAREST(RenderScript rs) {
if(rs.mSampler_WRAP_NEAREST == null) {
Builder b = new Builder(rs);
b.setMinification(Value.NEAREST);
b.setMagnification(Value.NEAREST);
b.setWrapS(Value.WRAP);
b.setWrapT(Value.WRAP);
rs.mSampler_WRAP_NEAREST = b.create();
}
return rs.mSampler_WRAP_NEAREST;
}
/**
* Retrieve a sampler with min and mag set to nearest and wrap modes set to
* wrap.
*
* @param rs
*
* @return Sampler
*/
public static Sampler WRAP_LINEAR(RenderScript rs) {
if(rs.mSampler_WRAP_LINEAR == null) {
Builder b = new Builder(rs);
b.setMinification(Value.LINEAR);
b.setMagnification(Value.LINEAR);
b.setWrapS(Value.WRAP);
b.setWrapT(Value.WRAP);
rs.mSampler_WRAP_LINEAR = b.create();
}
return rs.mSampler_WRAP_LINEAR;
}
/**
* Retrieve a sampler with ag set to linear, min linear mipmap linear, and
* to and wrap modes set to wrap.
*
* @param rs
*
* @return Sampler
*/
public static Sampler WRAP_LINEAR_MIP_LINEAR(RenderScript rs) {
if(rs.mSampler_WRAP_LINEAR_MIP_LINEAR == null) {
Builder b = new Builder(rs);
b.setMinification(Value.LINEAR_MIP_LINEAR);
b.setMagnification(Value.LINEAR);
b.setWrapS(Value.WRAP);
b.setWrapT(Value.WRAP);
rs.mSampler_WRAP_LINEAR_MIP_LINEAR = b.create();
}
return rs.mSampler_WRAP_LINEAR_MIP_LINEAR;
}
/**
* Builder for creating non-standard samplers. Usefull if mix and match of
* wrap modes is necesary or if anisotropic filtering is desired.
*
*/
public static class Builder {
RenderScript mRS;
Value mMin;
Value mMag;
Value mWrapS;
Value mWrapT;
Value mWrapR;
float mAniso;
public Builder(RenderScript rs) {
mRS = rs;
mMin = Value.NEAREST;
mMag = Value.NEAREST;
mWrapS = Value.WRAP;
mWrapT = Value.WRAP;
mWrapR = Value.WRAP;
mAniso = 1.0f;
}
public void setMinification(Value v) {
if (v == Value.NEAREST ||
v == Value.LINEAR ||
v == Value.LINEAR_MIP_LINEAR ||
v == Value.LINEAR_MIP_NEAREST) {
mMin = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
public void setMagnification(Value v) {
if (v == Value.NEAREST || v == Value.LINEAR) {
mMag = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
public void setWrapS(Value v) {
if (v == Value.WRAP || v == Value.CLAMP) {
mWrapS = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
public void setWrapT(Value v) {
if (v == Value.WRAP || v == Value.CLAMP) {
mWrapT = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
public void setAnisotropy(float v) {
if(v >= 0.0f) {
mAniso = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
static synchronized Sampler internalCreate(RenderScript rs, Builder b) {
rs.nSamplerBegin();
rs.nSamplerSet(0, b.mMin.mID);
rs.nSamplerSet(1, b.mMag.mID);
rs.nSamplerSet(2, b.mWrapS.mID);
rs.nSamplerSet(3, b.mWrapT.mID);
rs.nSamplerSet(4, b.mWrapR.mID);
rs.nSamplerSet2(5, b.mAniso);
int id = rs.nSamplerCreate();
return new Sampler(id, rs);
}
public Sampler create() {
mRS.validate();
return internalCreate(mRS, this);
}
}
}
|
