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#pragma version(1) 18572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams#pragma rs java_package_name(com.android.rs.sample) 19572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams#include "rs_graphics.rsh" 20572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 21572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsstatic rs_allocation sourceAlloc; 22572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsstatic rs_allocation destAlloc; 23572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsstatic rs_sampler allocSampler; 24572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 25572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsvoid setSampleData(rs_allocation dest, rs_allocation source, rs_sampler sampler) { 26572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams destAlloc = dest; 27572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams sourceAlloc = source; 28572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams allocSampler = sampler; 29572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams} 30572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 31572a5031a5d8602db0bec0b253428a034bd4dd59Jason Samsvoid root(uchar4 *out, uint32_t x, uint32_t y) { 32572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 33572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float destX = (float)rsAllocationGetDimX(destAlloc) - 1.0f; 34572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float destY = (float)rsAllocationGetDimY(destAlloc) - 1.0f; 35572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 36572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams float2 uv; 37572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uv.x = (float)x / destX; 38572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams uv.y = (float)y / destY; 39572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 40edf588ef6a97859d0b8f6e32e494db4a02a6e4cdXiaofei Wan out->xyz = convert_uchar3(rsSample(sourceAlloc, allocSampler, uv * 2.0f).xyz * 255.0f); 41572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams out->w = 0xff; 42572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams} 43572a5031a5d8602db0bec0b253428a034bd4dd59Jason Sams 44