text: /*
   * Copyright (C) 2009-2012 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef ANDROID_RS_MATRIX_4x4_H
  #define ANDROID_RS_MATRIX_4x4_H
  
  #include "rsType.h"
  
  
  // ---------------------------------------------------------------------------
  namespace android {
  namespace renderscript {
  
  struct Matrix4x4 : public rs_matrix4x4 {
      float get(uint32_t x, uint32_t y) const {
          return m[x*4 + y];
      }
  
      void set(uint32_t x, uint32_t y, float v) {
          m[x*4 + y] = v;
      }
  
      void loadIdentity();
      void load(const float *);
      void load(const rs_matrix4x4 *);
      void load(const rs_matrix3x3 *);
      void load(const rs_matrix2x2 *);
  
      void loadRotate(float rot, float x, float y, float z);
      void loadScale(float x, float y, float z);
      void loadTranslate(float x, float y, float z);
      void loadMultiply(const rs_matrix4x4 *lhs, const rs_matrix4x4 *rhs);
  
      void loadOrtho(float l, float r, float b, float t, float n, float f);
      void loadFrustum(float l, float r, float b, float t, float n, float f);
      void loadPerspective(float fovy, float aspect, float near, float far);
  
      void vectorMultiply(float *v4out, const float *v3in) const;
  
      bool inverse();
      bool inverseTranspose();
      void transpose();
  
      void logv(const char *s) const;
  
  
      void multiply(const rs_matrix4x4 *rhs) {
          Matrix4x4 tmp;
          tmp.loadMultiply(this, rhs);
          load(&tmp);
      }
      void rotate(float rot, float x, float y, float z) {
          Matrix4x4 tmp;
          tmp.loadRotate(rot, x, y, z);
          multiply(&tmp);
      }
      void scale(float x, float y, float z) {
          Matrix4x4 tmp;
          tmp.loadScale(x, y, z);
          multiply(&tmp);
      }
      void translate(float x, float y, float z) {
          Matrix4x4 tmp;
          tmp.loadTranslate(x, y, z);
          multiply(&tmp);
      }
  };
  
  }
  }
  
  #endif  // ANDROID_RS_MATRIX_4x4_H
  