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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef DEVICE_VR_DEVICE_VR_MATH_H_ | |
cjgrant
2017/04/11 13:44:40
DEVICE_VR_VR_MATH_H_ (other files as well).
mthiesse
2017/04/11 14:46:43
Done.
| |
6 #define DEVICE_VR_DEVICE_VR_MATH_H_ | |
7 | |
8 #include "device/vr/vr_export.h" | |
9 #include "device/vr/vr_types.h" | |
10 | |
11 namespace vr { | |
12 | |
13 void DEVICE_VR_EXPORT SetIdentityM(Matf* mat); | |
14 void DEVICE_VR_EXPORT TranslateM(const Matf& mat, | |
15 const gfx::Vector3dF& translation, | |
16 Matf* out); | |
17 void DEVICE_VR_EXPORT ScaleM(const Matf& mat, | |
18 const gfx::Vector3dF& scale, | |
19 Matf* out); | |
20 | |
21 gfx::Vector3dF DEVICE_VR_EXPORT MatrixVectorMul(const Matf& m, | |
22 const gfx::Vector3dF& v); | |
23 gfx::Vector3dF DEVICE_VR_EXPORT MatrixVectorRotate(const Matf& m, | |
24 const gfx::Vector3dF& v); | |
25 void DEVICE_VR_EXPORT MatrixMul(const Matf& matrix1, | |
26 const Matf& matrix2, | |
27 Matf* out); | |
cjgrant
2017/04/11 13:44:40
Here we're returning a new matrix. Possibly just
mthiesse
2017/04/11 14:46:44
Acknowledged.
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28 void DEVICE_VR_EXPORT PerspectiveMatrixFromView(const gfx::RectF& fov, | |
29 float z_near, | |
30 float z_far, | |
31 Matf* out); | |
cjgrant
2017/04/11 13:44:40
Same here.
mthiesse
2017/04/11 14:46:44
Acknowledged.
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32 | |
33 // Provides the direction the head is looking towards as a 3x1 unit vector. | |
34 gfx::Vector3dF DEVICE_VR_EXPORT GetForwardVector(const Matf& matrix); | |
35 | |
36 gfx::Vector3dF DEVICE_VR_EXPORT GetTranslation(const Matf& matrix); | |
37 | |
38 void DEVICE_VR_EXPORT QuatToMatrix(const Quatf& quat, Matf* out); | |
cjgrant
2017/04/11 13:44:40
And here.
mthiesse
2017/04/11 14:46:44
Acknowledged.
| |
39 | |
40 // Normalize a vector, and return its original length. | |
41 float DEVICE_VR_EXPORT NormalizeVector(gfx::Vector3dF* vec); | |
42 | |
43 void DEVICE_VR_EXPORT NormalizeQuat(Quatf* quat); | |
44 | |
45 Quatf DEVICE_VR_EXPORT QuatFromAxisAngle(const RotationAxisAngle& axis_angle); | |
46 | |
47 gfx::Point3F DEVICE_VR_EXPORT GetRayPoint(const gfx::Point3F& rayOrigin, | |
48 const gfx::Vector3dF& rayVector, | |
49 float scale); | |
50 | |
51 // Angle between the vectors' projections to the XZ plane. | |
52 bool DEVICE_VR_EXPORT XZAngle(const gfx::Vector3dF& vec1, | |
53 const gfx::Vector3dF& vec2, | |
54 float* angle); | |
55 | |
56 } // namespace vr | |
57 | |
58 #endif // DEVICE_VR_DEVICE_VR_MATH_H_ | |
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