1/*
2 * Copyright (C) 2009-2012 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_4x4_H
18#define ANDROID_RS_MATRIX_4x4_H
19
20#include "rsType.h"
21
22
23// ---------------------------------------------------------------------------
24namespace android {
25namespace renderscript {
26
27struct Matrix4x4 : public rs_matrix4x4 {
28    float get(uint32_t x, uint32_t y) const {
29        return m[x*4 + y];
30    }
31
32    void set(uint32_t x, uint32_t y, float v) {
33        m[x*4 + y] = v;
34    }
35
36    void loadIdentity();
37    void load(const float *);
38    void load(const rs_matrix4x4 *);
39    void load(const rs_matrix3x3 *);
40    void load(const rs_matrix2x2 *);
41
42    void loadRotate(float rot, float x, float y, float z);
43    void loadScale(float x, float y, float z);
44    void loadTranslate(float x, float y, float z);
45    void loadMultiply(const rs_matrix4x4 *lhs, const rs_matrix4x4 *rhs);
46
47    void loadOrtho(float l, float r, float b, float t, float n, float f);
48    void loadFrustum(float l, float r, float b, float t, float n, float f);
49    void loadPerspective(float fovy, float aspect, float near, float far);
50
51    void vectorMultiply(float *v4out, const float *v3in) const;
52
53    bool inverse();
54    bool inverseTranspose();
55    void transpose();
56
57    void logv(const char *s) const;
58
59
60    void multiply(const rs_matrix4x4 *rhs) {
61        Matrix4x4 tmp;
62        tmp.loadMultiply(this, rhs);
63        load(&tmp);
64    }
65    void rotate(float rot, float x, float y, float z) {
66        Matrix4x4 tmp;
67        tmp.loadRotate(rot, x, y, z);
68        multiply(&tmp);
69    }
70    void scale(float x, float y, float z) {
71        Matrix4x4 tmp;
72        tmp.loadScale(x, y, z);
73        multiply(&tmp);
74    }
75    void translate(float x, float y, float z) {
76        Matrix4x4 tmp;
77        tmp.loadTranslate(x, y, z);
78        multiply(&tmp);
79    }
80};
81
82}
83}
84
85#endif  // ANDROID_RS_MATRIX_4x4_H
86