1572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams/*
2572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * Copyright (C) 2012 The Android Open Source Project
3572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams *
4572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * Licensed under the Apache License, Version 2.0 (the "License");
5572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * you may not use this file except in compliance with the License.
6572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * You may obtain a copy of the License at
7572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams *
8572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams *      http://www.apache.org/licenses/LICENSE-2.0
9572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams *
10572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * Unless required by applicable law or agreed to in writing, software
11572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * distributed under the License is distributed on an "AS IS" BASIS,
12572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * See the License for the specific language governing permissions and
14572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams * limitations under the License.
15572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams */
16572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams
17572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams#include "ip.rsh"
1823e1074f29f431f68c6b3230c1315ea0f7c7bc86Jason Sams#pragma rs_fp_relaxed
19572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams
20572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsstatic rs_matrix4x4 Mat;
21572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams
22572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsvoid init() {
23572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams    rsMatrixLoadIdentity(&Mat);
24572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams}
25572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams
26572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsvoid setMatrix(rs_matrix4x4 m) {
27572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams    Mat = m;
28572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams}
29572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams
30025b5f82971c431eb22df3c9d0f00b3cbe426bdbChris Wailesuchar4 RS_KERNEL root(uchar4 in) {
31572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams    float4 f = convert_float4(in);
32572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams    f = rsMatrixMultiply(&Mat, f);
33572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams    f = clamp(f, 0.f, 255.f);
34572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams    return convert_uchar4(f);
35572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams}
36572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams
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