1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 
17 /*
18  * Copyright (C) 2014 The Android Open Source Project
19  *
20  * Licensed under the Apache License, Version 2.0 (the "License");
21  * you may not use this file except in compliance with the License.
22  * You may obtain a copy of the License at
23  *
24  *      http://www.apache.org/licenses/LICENSE-2.0
25  *
26  * Unless required by applicable law or agreed to in writing, software
27  * distributed under the License is distributed on an "AS IS" BASIS,
28  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
29  * See the License for the specific language governing permissions and
30  * limitations under the License.
31  */
32 
33 #pragma version(1)
34 #pragma rs java_package_name(com.android.rs.cppinfiniteloop)
35 
36 
37 float4 gColor = {0.299f, 0.587f, 0.114f, 1.f};
38 
39 /* RenderScript kernel that just sets the colour of the screen and does some
40  * simple operations so it is not completely empty
41  * (and can therefore be debugged).
42  */
43 uchar4 __attribute__((kernel)) simple_kernel(uchar4 in)
44 {
45     float4 out = rsUnpackColor8888(in);
46 
47     out.r = gColor.r;
48     out.g = gColor.g;
49     out.b = gColor.b;
50     out.a = gColor.a;
51 
52     uchar4 result = rsPackColorTo8888(out);
53     return result;
54 }
55 
56