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                 coords[0][0] = 2.0f;
  34                 coords[0][1] = 0.f;
  35                 coords[0][2] = 0.f;
  36                 coords[1][0] = 0.f;
  37                 coords[1][1] = 2.0f;
  38                 coords[1][2] = 0.f;
  39         }
  40         void removeScale( std::size_t width, std::size_t height ){
  41 #if 1
  42                 coords[0][0] *= width;
  43                 coords[0][1] *= width;
  44                 coords[0][2] *= width;
  45                 coords[1][0] *= height;
  46                 coords[1][1] *= height;
  47                 coords[1][2] *= height;
  48 #endif
  49         }
  50         void addScale( std::size_t width, std::size_t height ){
  51 #if 1
  52                 ASSERT_MESSAGE( width > 0, "shader-width is 0" );
  53                 ASSERT_MESSAGE( height > 0, "shader-height is 0" );
  54                 coords[0][0] /= width;
  55                 coords[0][1] /= width;
  56                 coords[0][2] /= width;
  57                 coords[1][0] /= height;
  58                 coords[1][1] /= height;
  59                 coords[1][2] /= height;
  60 #endif
  61         }
  62         float coords[2][3];
  63 };
  64
  65 class TextureProjection
  66 {
  67 public:
  68 texdef_t m_texdef;
  69 brushprimit_texdef_t m_brushprimit_texdef;
  70 Vector3 m_basis_s;
  71 Vector3 m_basis_t;
  72
  73 TextureProjection(){
  74 }
  75 TextureProjection(
  76         const texdef_t& texdef,
  77         const brushprimit_texdef_t& brushprimit_texdef,
  78         const Vector3& basis_s,
  79         const Vector3& basis_t
  80         ) :
  81         m_texdef( texdef ),
  82         m_brushprimit_texdef( brushprimit_texdef ),
  83         m_basis_s( basis_s ),
  84         m_basis_t( basis_t ){
  85 }
  86 };
  87
  88 float Texdef_getDefaultTextureScale();
  89
  90 class texdef_t;
  91 struct Winding;
  92 template<typename Element> class BasicVector3;
  93 typedef BasicVector3<float> Vector3;
  94 template<typename Element> class BasicVector4;
  95 typedef BasicVector4<float> Vector4;
  96 typedef Vector4 Quaternion;
  97 class Matrix4;
  98 class Plane3;
  99
 100 void Normal_GetTransform( const Vector3& normal, Matrix4& transform );
 101
 102 void TexDef_Construct_Default( TextureProjection& projection );
 103
 104 void Texdef_Assign( TextureProjection& projection, const TextureProjection& other );
 105 void Texdef_Shift( TextureProjection& projection, float s, float t );
 106 void Texdef_Scale( TextureProjection& projection, float s, float t );
 107 void Texdef_Rotate( TextureProjection& projection, float angle );
 108 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 );
 109 void Texdef_EmitTextureCoordinates( const TextureProjection& projection, std::size_t width, std::size_t height, Winding& w, const Vector3& normal, const Matrix4& localToWorld );
 110
 111 void ShiftScaleRotate_fromFace( texdef_t& shiftScaleRotate, const TextureProjection& projection );
 112 void ShiftScaleRotate_toFace( const texdef_t& shiftScaleRotate, TextureProjection& projection );
 113
 114 void Texdef_transformLocked( TextureProjection& projection, std::size_t width, std::size_t height, const Plane3& plane, const Matrix4& transform );
 115 void Texdef_normalise( TextureProjection& projection, float width, float height );
 116
 117 enum TexdefTypeId
 118 {
 119         TEXDEFTYPEID_QUAKE,
 120         TEXDEFTYPEID_BRUSHPRIMITIVES,
 121         TEXDEFTYPEID_HALFLIFE,
 122 };
 123
 124 struct bp_globals_t
 125 {
 126         // tells if we are internally using brush primitive (texture coordinates and map format)
 127         // this is a shortcut for IntForKey( g_qeglobals.d_project_entity, "brush_primit" )
 128         // NOTE: must keep the two ones in sync
 129         TexdefTypeId m_texdefTypeId;
 130 };
 131
 132 extern bp_globals_t g_bp_globals;
 133 extern float g_texdef_default_scale;
 134
 135 void ComputeAxisBase( const Vector3& normal, Vector3& texS, Vector3& texT );
 136
 137 #endif