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1 /*
2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
4
5 This file is part of GtkRadiant.
6
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
20 */
21
22 #if !defined(INCLUDED_BRUSH_PRIMIT_H)
23 #define INCLUDED_BRUSH_PRIMIT_H
24
25 #include "math/vector.h"
26 #include "itexdef.h"
27 #include "debugging/debugging.h"
28 // Timo
29 // new brush primitive texdef
30 struct brushprimit_texdef_t
31 {
32   brushprimit_texdef_t()
33   {
34     coords[0][0] = 2.0f;
35     coords[0][1] = 0.f;
36     coords[0][2] = 0.f;
37     coords[1][0] = 0.f;
38     coords[1][1] = 2.0f;
39     coords[1][2] = 0.f;
40   }
41   void removeScale(std::size_t width, std::size_t height)
42   {
43 #if 1
44     coords[0][0] *= width;
45     coords[0][1] *= width;
46     coords[0][2] *= width;
47     coords[1][0] *= height;
48     coords[1][1] *= height;
49     coords[1][2] *= height;
50 #endif
51   }
52   void addScale(std::size_t width, std::size_t height)
53   {
54 #if 1
55         ASSERT_MESSAGE(width > 0, "shader-width is 0");
56         ASSERT_MESSAGE(height > 0, "shader-height is 0");
57     coords[0][0] /= width;
58     coords[0][1] /= width;
59     coords[0][2] /= width;
60     coords[1][0] /= height;
61     coords[1][1] /= height;
62     coords[1][2] /= height;
63 #endif
64   }
65         float coords[2][3];
66 };
67
68 class TextureProjection
69 {
70 public:
71         texdef_t m_texdef;
72         brushprimit_texdef_t m_brushprimit_texdef;
73   Vector3 m_basis_s;
74   Vector3 m_basis_t;
75
76   TextureProjection()
77   {
78   }
79   TextureProjection(
80     const texdef_t& texdef,
81     const brushprimit_texdef_t& brushprimit_texdef,
82     const Vector3& basis_s,
83     const Vector3& basis_t
84   ) :
85     m_texdef(texdef),
86     m_brushprimit_texdef(brushprimit_texdef),
87     m_basis_s(basis_s),
88     m_basis_t(basis_t)
89   {
90   }
91 };
92
93 float Texdef_getDefaultTextureScale();
94
95 class texdef_t;
96 struct Winding;
97 template<typename Element> class BasicVector3;
98 typedef BasicVector3<float> Vector3;
99 template<typename Element> class BasicVector4;
100 typedef BasicVector4<float> Vector4;
101 typedef Vector4 Quaternion;
102 class Matrix4;
103 class Plane3;
104
105 void Normal_GetTransform(const Vector3& normal, Matrix4& transform);
106
107 void TexDef_Construct_Default(TextureProjection& projection);
108
109 void Texdef_Assign(TextureProjection& projection, const TextureProjection& other);
110 void Texdef_Shift(TextureProjection& projection, float s, float t);
111 void Texdef_Scale(TextureProjection& projection, float s, float t);
112 void Texdef_Rotate(TextureProjection& projection, float angle);
113 void Texdef_FitTexture(TextureProjection& projection, std::size_t width, std::size_t height, const Vector3& normal, const Winding& w, float s_repeat, float t_repeat);
114 void Texdef_EmitTextureCoordinates(const TextureProjection& projection, std::size_t width, std::size_t height, Winding& w, const Vector3& normal, const Matrix4& localToWorld);
115
116 void ShiftScaleRotate_fromFace(texdef_t& shiftScaleRotate, const TextureProjection& projection);
117 void ShiftScaleRotate_toFace(const texdef_t& shiftScaleRotate, TextureProjection& projection);
118
119 void Texdef_transformLocked(TextureProjection& projection, std::size_t width, std::size_t height, const Plane3& plane, const Matrix4& transform);
120 void Texdef_normalise(TextureProjection& projection, float width, float height);
121
122 enum TexdefTypeId
123 {
124   TEXDEFTYPEID_QUAKE,
125   TEXDEFTYPEID_BRUSHPRIMITIVES,
126   TEXDEFTYPEID_HALFLIFE,
127 };
128
129 struct bp_globals_t
130 {
131   // tells if we are internally using brush primitive (texture coordinates and map format)
132   // this is a shortcut for IntForKey( g_qeglobals.d_project_entity, "brush_primit" )
133   // NOTE: must keep the two ones in sync
134   TexdefTypeId m_texdefTypeId;
135 };
136
137 extern bp_globals_t g_bp_globals;
138 extern float g_texdef_default_scale;
139
140 #endif