radiant/brush_primit.h

   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