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" 18572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 19572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsconst static float3 gMonoMult = {0.299f, 0.587f, 0.114f}; 20572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 21025b5f82971c431eb22df3c9d0f00b3cbe426bdbChris Wailesuchar4 RS_KERNEL root(uchar4 v_in) { 22572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float4 f4 = rsUnpackColor8888(v_in); 23572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 24572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float3 mono = dot(f4.rgb, gMonoMult); 25572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams return rsPackColorTo8888(mono); 26572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams} 27572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 28025b5f82971c431eb22df3c9d0f00b3cbe426bdbChris Wailesuchar RS_KERNEL toU8(uchar4 v_in) { 29572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float4 f4 = convert_float4(v_in); 30572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams return (uchar)dot(f4.rgb, gMonoMult); 31572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams} 32572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 33025b5f82971c431eb22df3c9d0f00b3cbe426bdbChris Wailesuchar4 RS_KERNEL toU8_4(uchar v_in) { 34572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams return (uchar4)v_in; 35572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams} 36572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 37