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 col, uint32_t row) const {
29        return m[col*4 + row];
30    }
31
32    void set(uint32_t col, uint32_t row, float v) {
33        m[col*4 + row] = 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    // Note: This assumes that the input vector (in) is of length 3.
52    void vectorMultiply(float *v4out, const float *v3in) const;
53
54    bool inverse();
55    bool inverseTranspose();
56    void transpose();
57
58    void logv(const char *s) const;
59
60
61    void multiply(const rs_matrix4x4 *rhs) {
62        loadMultiply(this, rhs);
63    }
64    void rotate(float rot, float x, float y, float z) {
65        Matrix4x4 tmp;
66        tmp.loadRotate(rot, x, y, z);
67        multiply(&tmp);
68    }
69    void scale(float x, float y, float z) {
70        Matrix4x4 tmp;
71        tmp.loadScale(x, y, z);
72        multiply(&tmp);
73    }
74    void translate(float x, float y, float z) {
75        Matrix4x4 tmp;
76        tmp.loadTranslate(x, y, z);
77        multiply(&tmp);
78    }
79};
80
81}
82}
83
84#endif  // ANDROID_RS_MATRIX_4x4_H
85