1ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams/* 2ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * Copyright (C) 2012 The Android Open Source Project 3ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * 4ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * Licensed under the Apache License, Version 2.0 (the "License"); 5ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * you may not use this file except in compliance with the License. 6ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * You may obtain a copy of the License at 7ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * 8ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * http://www.apache.org/licenses/LICENSE-2.0 9ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * 10ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * Unless required by applicable law or agreed to in writing, software 11ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * distributed under the License is distributed on an "AS IS" BASIS, 12ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * See the License for the specific language governing permissions and 14ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams * limitations under the License. 15ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams */ 16ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams 17ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Samsfloat inBlack; 18ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Samsfloat outBlack; 19ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Samsfloat inWMinInB; 20ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Samsfloat outWMinOutB; 21ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Samsfloat overInWMinInB; 22ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Samsrs_matrix3x3 colorMat; 23ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams 24ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Samsvoid root(const uchar4 *in, uchar4 *out, uint32_t x, uint32_t y) { 25ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams float3 pixel = convert_float4(in[0]).rgb; 26ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = rsMatrixMultiply(&colorMat, pixel); 27ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = clamp(pixel, 0.f, 255.f); 28ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = (pixel - inBlack) * overInWMinInB; 29ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = pixel * outWMinOutB + outBlack; 30ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = clamp(pixel, 0.f, 255.f); 31ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams out->xyz = convert_uchar3(pixel); 32ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams out->w = 0xff; 33ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams} 34ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams 35ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Samsvoid root4(const uchar4 *in, uchar4 *out, uint32_t x, uint32_t y) { 36ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams float4 pixel = convert_float4(in[0]); 37ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel.rgb = rsMatrixMultiply(&colorMat, pixel.rgb); 38ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = clamp(pixel, 0.f, 255.f); 39ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = (pixel - inBlack) * overInWMinInB; 40ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = pixel * outWMinOutB + outBlack; 41ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams pixel = clamp(pixel, 0.f, 255.f); 42ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams out->xyzw = convert_uchar4(pixel); 43ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams} 44ebefb2c3d8efda845e5e9a9eba66e0a341b4db82Jason Sams 45