29 lines
942 B
Plaintext
29 lines
942 B
Plaintext
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma version(1)
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#pragma rs java_package_name(com.example.android.rs.hellocomputendk)
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const static float3 gMonoMult = {0.299f, 0.587f, 0.114f};
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void root(const uchar4 *v_in, uchar4 *v_out) {
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float4 f4 = rsUnpackColor8888(*v_in);
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float3 mono = dot(f4.rgb, gMonoMult);
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*v_out = rsPackColorTo8888(mono);
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}
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