| // Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Matrix implementation here is col-major, both storage-wise and |
| // operation-wise. |
| |
| #ifndef MATRIXOP_H_INCLUDED |
| #define MATRIXOP_H_INCLUDED |
| |
| typedef float Matrix4x4[16]; |
| typedef float Matrix3x3[9]; |
| |
| // result = mat1 * mat2 |
| extern void Matrix4x4_Multiply(Matrix4x4 result, |
| Matrix4x4 mat1, Matrix4x4 mat2); |
| |
| // dst = src |
| extern void Matrix4x4_Copy(Matrix4x4 dst, Matrix4x4 src); |
| |
| extern void Matrix4x4_LoadIdentity(Matrix4x4 mat); |
| |
| // mat = ScaleMatrix(sx, sy, sz) * mat |
| extern void Matrix4x4_Scale(Matrix4x4 mat, |
| float sx, float sy, float sz); |
| |
| // mat = TranslateMatrix(tx, ty, tz) * mat |
| extern void Matrix4x4_Translate(Matrix4x4 mat, |
| float tx, float ty, float tz); |
| |
| // mat = RotateMatrix(angle, ax, ay, az) * mat |
| extern void Matrix4x4_Rotate(Matrix4x4 mat, float angle, |
| float ax, float ay, float az); |
| |
| // mat = FrustumMatrix(left, right, bottom, top, near, far) * mat |
| extern void Matrix4x4_Frustum(Matrix4x4 mat, |
| float left, float right, |
| float bottom, float top, |
| float near, float far); |
| |
| extern void Matrix4x4_Perspective(Matrix4x4 mat, float fovy, float aspect, |
| float nearZ, float farZ); |
| |
| // [x,y,z] = mat(3x3) * [x,y,z] |
| extern void Matrix4x4_Transform(Matrix4x4 mat, float *x, float *y, float *z); |
| |
| #endif // MATRIXOP_H_INCLUDED |
| |
