Line data Source code
1 : /* Copyright (C) 2022 Wildfire Games.
2 : * This file is part of 0 A.D.
3 : *
4 : * 0 A.D. is free software: you can redistribute it and/or modify
5 : * it under the terms of the GNU General Public License as published by
6 : * the Free Software Foundation, either version 2 of the License, or
7 : * (at your option) any later version.
8 : *
9 : * 0 A.D. is distributed in the hope that it will be useful,
10 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 : * GNU General Public License for more details.
13 : *
14 : * You should have received a copy of the GNU General Public License
15 : * along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
16 : */
17 :
18 : #include "precompiled.h"
19 :
20 : #include "GUIMatrix.h"
21 : #include "maths/Matrix3D.h"
22 : #include "ps/VideoMode.h"
23 :
24 : extern int g_xres, g_yres;
25 :
26 0 : CMatrix3D GetDefaultGuiMatrix()
27 : {
28 0 : float xres = g_xres / g_VideoMode.GetScale();
29 0 : float yres = g_yres / g_VideoMode.GetScale();
30 :
31 0 : CMatrix3D m;
32 0 : m.SetIdentity();
33 0 : m.Scale(1.0f, -1.f, 1.0f);
34 0 : m.Translate(0.0f, yres, -1000.0f);
35 :
36 0 : CMatrix3D proj;
37 0 : proj.SetOrtho(0.f, xres, 0.f, yres, -1.f, 1000.f);
38 0 : m = proj * m;
39 :
40 0 : return m;
41 : }
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