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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_RS_MATRIX_2x2_H
     18 #define ANDROID_RS_MATRIX_2x2_H
     19 
     20 #include "rsType.h"
     21 
     22 
     23 // ---------------------------------------------------------------------------
     24 namespace android {
     25 namespace renderscript {
     26 
     27 struct Matrix2x2 : public rs_matrix2x2 {
     28     inline float get(uint32_t row, uint32_t col) const {
     29         return m[row*2 + col];
     30     }
     31 
     32     inline void set(uint32_t row, uint32_t col, float v) {
     33         m[row*2 + col] = v;
     34     }
     35 
     36     void loadIdentity();
     37     void load(const float *);
     38     void load(const rs_matrix2x2 *);
     39 
     40     void loadMultiply(const rs_matrix2x2 *lhs, const rs_matrix2x2 *rhs);
     41 
     42     void transpose();
     43 
     44     void multiply(const rs_matrix2x2 *rhs) {
     45         Matrix2x2 tmp;
     46         tmp.loadMultiply(this, rhs);
     47         load(&tmp);
     48     }
     49 };
     50 
     51 }
     52 }
     53 
     54 
     55 
     56 
     57 #endif
     58 
     59 
     60 
     61 
     62 
     63