187fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams/* 287fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * Copyright (C) 2011 The Android Open Source Project 387fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * 487fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * Licensed under the Apache License, Version 2.0 (the "License"); 587fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * you may not use this file except in compliance with the License. 687fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * You may obtain a copy of the License at 787fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * 887fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * http://www.apache.org/licenses/LICENSE-2.0 987fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * 1087fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * Unless required by applicable law or agreed to in writing, software 1187fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * distributed under the License is distributed on an "AS IS" BASIS, 1287fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1387fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * See the License for the specific language governing permissions and 1487fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams * limitations under the License. 1587fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams */ 1687fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 1787fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams#include "rsMatrix2x2.h" 1887fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams#include "rsMatrix3x3.h" 1987fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams#include "rsMatrix4x4.h" 2087fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 2187fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams#include "stdlib.h" 2287fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams#include "string.h" 2387fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams#include "math.h" 2487fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 2511496ac131bb691edf5bdcab3029dceef5c1e4e1Chih-Hung Hsiehnamespace android { 2611496ac131bb691edf5bdcab3029dceef5c1e4e1Chih-Hung Hsiehnamespace renderscript { 2787fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 2887fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Samsvoid Matrix2x2::loadIdentity() { 2987fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams m[0] = 1.f; 3087fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams m[1] = 0.f; 3187fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams m[2] = 0.f; 3287fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams m[3] = 1.f; 3387fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams} 3487fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 3587fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Samsvoid Matrix2x2::load(const float *v) { 3687fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams memcpy(m, v, sizeof(m)); 3787fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams} 3887fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 3987fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Samsvoid Matrix2x2::load(const rs_matrix2x2 *v) { 4087fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams memcpy(m, v->m, sizeof(m)); 4187fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams} 4287fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 4387fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Samsvoid Matrix2x2::loadMultiply(const rs_matrix2x2 *lhs, const rs_matrix2x2 *rhs) { 441bb2eed69caa28cf8198d58db7d9134cc2f563f5Jean-Luc Brouillet // Use a temporary variable to support the case where one of the inputs 451bb2eed69caa28cf8198d58db7d9134cc2f563f5Jean-Luc Brouillet // is also the destination, e.g. left.loadMultiply(left, right); 461bb2eed69caa28cf8198d58db7d9134cc2f563f5Jean-Luc Brouillet Matrix2x2 temp; 4787fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams for (int i=0 ; i<2 ; i++) { 4887fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams float ri0 = 0; 4987fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams float ri1 = 0; 5087fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams for (int j=0 ; j<2 ; j++) { 5187fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams const float rhs_ij = ((const Matrix2x2 *)rhs)->get(i, j); 5287fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams ri0 += ((const Matrix2x2 *)lhs)->get(j, 0) * rhs_ij; 5387fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams ri1 += ((const Matrix2x2 *)lhs)->get(j, 1) * rhs_ij; 5487fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams } 551bb2eed69caa28cf8198d58db7d9134cc2f563f5Jean-Luc Brouillet temp.set(i, 0, ri0); 561bb2eed69caa28cf8198d58db7d9134cc2f563f5Jean-Luc Brouillet temp.set(i, 1, ri1); 5787fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams } 581bb2eed69caa28cf8198d58db7d9134cc2f563f5Jean-Luc Brouillet load(&temp); 5987fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams} 6087fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 6187fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Samsvoid Matrix2x2::transpose() { 6287fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams float temp = m[1]; 6387fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams m[1] = m[2]; 6487fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams m[2] = temp; 6587fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams} 6687fe59a2f4d4c74539bfa0bff5f9a7e320e99415Jason Sams 6711496ac131bb691edf5bdcab3029dceef5c1e4e1Chih-Hung Hsieh} // namespace renderscript 6811496ac131bb691edf5bdcab3029dceef5c1e4e1Chih-Hung Hsieh} // namespace android 69