90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
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/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_RS_MATRIX_H
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#define ANDROID_RS_MATRIX_H
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// ---------------------------------------------------------------------------
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namespace android {
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namespace renderscript {
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struct Matrix
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{
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float m[16];
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inline float get(int i, int j) const {
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return m[i*4 + j];
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}
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inline void set(int i, int j, float v) {
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m[i*4 + j] = v;
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}
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void loadIdentity();
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void load(const float *);
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void load(const Matrix *);
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void loadRotate(float rot, float x, float y, float z);
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void loadScale(float x, float y, float z);
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void loadTranslate(float x, float y, float z);
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void loadMultiply(const Matrix *lhs, const Matrix *rhs);
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void loadOrtho(float l, float r, float b, float t, float n, float f);
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void loadFrustum(float l, float r, float b, float t, float n, float f);
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void vectorMultiply(float *v4out, const float *v3in) const;
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void multiply(const Matrix *rhs) {
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Matrix tmp;
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tmp.loadMultiply(this, rhs);
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load(&tmp);
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}
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void rotate(float rot, float x, float y, float z) {
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Matrix tmp;
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tmp.loadRotate(rot, x, y, z);
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multiply(&tmp);
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}
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void scale(float x, float y, float z) {
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Matrix tmp;
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tmp.loadScale(x, y, z);
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multiply(&tmp);
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}
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void translate(float x, float y, float z) {
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Matrix tmp;
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tmp.loadTranslate(x, y, z);
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multiply(&tmp);
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}
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};
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}
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}
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#endif
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