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 Samsint32_t gWidth; 20572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsint32_t gHeight; 21572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsrs_allocation gIn; 22572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 23572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsfloat gCoeffs[25]; 24572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 25025b5f82971c431eb22df3c9d0f00b3cbe426bdbChris Wailesuchar4 RS_KERNEL root(uint32_t x, uint32_t y) { 26572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t x0 = max((int32_t)x-2, 0); 27572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t x1 = max((int32_t)x-1, 0); 28572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t x2 = x; 29572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t x3 = min((int32_t)x+1, gWidth-1); 30572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t x4 = min((int32_t)x+2, gWidth-1); 31572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 32572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t y0 = max((int32_t)y-2, 0); 33572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t y1 = max((int32_t)y-1, 0); 34572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t y2 = y; 35572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t y3 = min((int32_t)y+1, gHeight-1); 36572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uint32_t y4 = min((int32_t)y+2, gHeight-1); 37572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 38572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float4 p0 = convert_float4(rsGetElementAt_uchar4(gIn, x0, y0)) * gCoeffs[0] 39572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x1, y0)) * gCoeffs[1] 40572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x2, y0)) * gCoeffs[2] 41572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x3, y0)) * gCoeffs[3] 42572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x4, y0)) * gCoeffs[4]; 43572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 44572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float4 p1 = convert_float4(rsGetElementAt_uchar4(gIn, x0, y1)) * gCoeffs[5] 45572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x1, y1)) * gCoeffs[6] 46572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x2, y1)) * gCoeffs[7] 47572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x3, y1)) * gCoeffs[8] 48572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x4, y1)) * gCoeffs[9]; 49572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 50572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float4 p2 = convert_float4(rsGetElementAt_uchar4(gIn, x0, y2)) * gCoeffs[10] 51572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x1, y2)) * gCoeffs[11] 52572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x2, y2)) * gCoeffs[12] 53572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x3, y2)) * gCoeffs[13] 54572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x4, y2)) * gCoeffs[14]; 55572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 56572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float4 p3 = convert_float4(rsGetElementAt_uchar4(gIn, x0, y3)) * gCoeffs[15] 57572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x1, y3)) * gCoeffs[16] 58572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x2, y3)) * gCoeffs[17] 59572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x3, y3)) * gCoeffs[18] 60572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x4, y3)) * gCoeffs[19]; 61572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 62572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float4 p4 = convert_float4(rsGetElementAt_uchar4(gIn, x0, y4)) * gCoeffs[20] 63572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x1, y4)) * gCoeffs[21] 64572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x2, y4)) * gCoeffs[22] 65572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x3, y4)) * gCoeffs[23] 66572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams + convert_float4(rsGetElementAt_uchar4(gIn, x4, y4)) * gCoeffs[24]; 67572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 68572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams p0 = clamp(p0 + p1 + p2 + p3 + p4, 0.f, 255.f); 69572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams return convert_uchar4(p0); 70572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams} 71572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 72572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 73