1 //
2 // Copyright 2016 Pixar
3 //
4 // Licensed under the Apache License, Version 2.0 (the "Apache License")
5 // with the following modification; you may not use this file except in
6 // compliance with the Apache License and the following modification to it:
7 // Section 6. Trademarks. is deleted and replaced with:
8 //
9 // 6. Trademarks. This License does not grant permission to use the trade
10 //    names, trademarks, service marks, or product names of the Licensor
11 //    and its affiliates, except as required to comply with Section 4(c) of
12 //    the License and to reproduce the content of the NOTICE file.
13 //
14 // You may obtain a copy of the Apache License at
15 //
16 //     http://www.apache.org/licenses/LICENSE-2.0
17 //
18 // Unless required by applicable law or agreed to in writing, software
19 // distributed under the Apache License with the above modification is
20 // distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
21 // KIND, either express or implied. See the Apache License for the specific
22 // language governing permissions and limitations under the Apache License.
23 //
24 #ifndef PXR_BASE_GF_MATRIX_DATA_H
25 #define PXR_BASE_GF_MATRIX_DATA_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/base/gf/api.h"
29 
30 PXR_NAMESPACE_OPEN_SCOPE
31 
32 /// \class GfMatrixData
33 ///
34 /// A class template used by GfMatrixXX to store values.
35 template <class T, int Rows, int Columns>
36 class GfMatrixData {
37 public:
38 
39     /// Return a pointer to a \a row of data.
40     T *operator[](int row) {
41         return _data + (row * Columns);
42     }
43 
44     /// Return a const pointer to a \a row of data.
45     T const *operator[](int row) const {
46         return _data + (row * Columns);
47     }
48 
49     /// Return a pointer to the start of all the data.
GetData()50     T *GetData() {
51         return _data;
52     }
53 
54     /// Return a const pointer to the start of all the data.
GetData()55     T const *GetData() const {
56         return _data;
57     }
58 
59 private:
60 
61     T _data[Rows * Columns];
62 };
63 
64 PXR_NAMESPACE_CLOSE_SCOPE
65 
66 #endif // PXR_BASE_GF_MATRIX_DATA_H
67