mirror of
https://github.com/KevinMidboe/linguist.git
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68 lines
2.0 KiB
Rust
68 lines
2.0 KiB
Rust
/*
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* Copyright (C) 2012 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.android.gallery3d.filtershow.filters)
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#pragma rs_fp_relaxed
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int32_t gWidth;
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int32_t gHeight;
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const uchar4 *gPixels;
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rs_allocation gIn;
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float gCoeffs[9];
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void root(const uchar4 *in, uchar4 *out, const void *usrData, uint32_t x, uint32_t y) {
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uint32_t x1 = min((int32_t)x+1, gWidth-1);
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uint32_t x2 = max((int32_t)x-1, 0);
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uint32_t y1 = min((int32_t)y+1, gHeight-1);
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uint32_t y2 = max((int32_t)y-1, 0);
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float4 p00 = rsUnpackColor8888(gPixels[x1 + gWidth * y1]);
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float4 p01 = rsUnpackColor8888(gPixels[x + gWidth * y1]);
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float4 p02 = rsUnpackColor8888(gPixels[x2 + gWidth * y1]);
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float4 p10 = rsUnpackColor8888(gPixels[x1 + gWidth * y]);
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float4 p11 = rsUnpackColor8888(gPixels[x + gWidth * y]);
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float4 p12 = rsUnpackColor8888(gPixels[x2 + gWidth * y]);
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float4 p20 = rsUnpackColor8888(gPixels[x1 + gWidth * y2]);
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float4 p21 = rsUnpackColor8888(gPixels[x + gWidth * y2]);
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float4 p22 = rsUnpackColor8888(gPixels[x2 + gWidth * y2]);
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p00 *= gCoeffs[0];
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p01 *= gCoeffs[1];
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p02 *= gCoeffs[2];
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p10 *= gCoeffs[3];
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p11 *= gCoeffs[4];
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p12 *= gCoeffs[5];
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p20 *= gCoeffs[6];
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p21 *= gCoeffs[7];
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p22 *= gCoeffs[8];
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p00 += p01;
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p02 += p10;
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p11 += p12;
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p20 += p21;
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p22 += p00;
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p02 += p11;
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p20 += p22;
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p20 += p02;
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p20 = clamp(p20, 0.f, 1.f);
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*out = rsPackColorTo8888(p20.r, p20.g, p20.b);
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}
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