| /* |
| * Copyright (C) 2012 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. |
| */ |
| |
| float inBlack; |
| float outBlack; |
| float inWMinInB; |
| float outWMinOutB; |
| float overInWMinInB; |
| rs_matrix3x3 colorMat; |
| |
| uchar4 __attribute__((kernel)) root(uchar4 in, uint32_t x, uint32_t y) { |
| uchar4 out; |
| float3 pixel = convert_float4(in).rgb; |
| pixel = rsMatrixMultiply(&colorMat, pixel); |
| pixel = clamp(pixel, 0.f, 255.f); |
| pixel = (pixel - inBlack) * overInWMinInB; |
| pixel = pixel * outWMinOutB + outBlack; |
| pixel = clamp(pixel, 0.f, 255.f); |
| out.xyz = convert_uchar3(pixel); |
| out.w = 0xff; |
| return out; |
| } |
| |
| uchar4 __attribute__((kernel)) root4(uchar4 in, uint32_t x, uint32_t y) { |
| float4 pixel = convert_float4(in); |
| pixel.rgb = rsMatrixMultiply(&colorMat, pixel.rgb); |
| pixel = clamp(pixel, 0.f, 255.f); |
| pixel = (pixel - inBlack) * overInWMinInB; |
| pixel = pixel * outWMinOutB + outBlack; |
| pixel = clamp(pixel, 0.f, 255.f); |
| return convert_uchar4(pixel); |
| } |
| |