quadrilateralcowboy/idlib/geometry/DrawVert.h
2020-06-12 14:06:25 -07:00

107 lines
3.7 KiB
C++

/*
===========================================================================
Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
Doom 3 Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Doom 3 Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#ifndef __DRAWVERT_H__
#define __DRAWVERT_H__
/*
===============================================================================
Draw Vertex.
===============================================================================
*/
class idDrawVert {
public:
idVec3 xyz;
idVec2 st;
idVec3 normal;
idVec3 tangents[2];
byte color[4];
#if 0 // was MACOS_X see comments concerning DRAWVERT_PADDED in Simd_Altivec.h
float padding;
#endif
float operator[]( const int index ) const;
float & operator[]( const int index );
void Clear( void );
void Lerp( const idDrawVert &a, const idDrawVert &b, const float f );
void LerpAll( const idDrawVert &a, const idDrawVert &b, const float f );
void Normalize( void );
void SetColor( dword color );
dword GetColor( void ) const;
};
ID_INLINE float idDrawVert::operator[]( const int index ) const {
assert( index >= 0 && index < 5 );
return ((float *)(&xyz))[index];
}
ID_INLINE float &idDrawVert::operator[]( const int index ) {
assert( index >= 0 && index < 5 );
return ((float *)(&xyz))[index];
}
ID_INLINE void idDrawVert::Clear( void ) {
xyz.Zero();
st.Zero();
normal.Zero();
tangents[0].Zero();
tangents[1].Zero();
color[0] = color[1] = color[2] = color[3] = 0;
}
ID_INLINE void idDrawVert::Lerp( const idDrawVert &a, const idDrawVert &b, const float f ) {
xyz = a.xyz + f * ( b.xyz - a.xyz );
st = a.st + f * ( b.st - a.st );
}
ID_INLINE void idDrawVert::LerpAll( const idDrawVert &a, const idDrawVert &b, const float f ) {
xyz = a.xyz + f * ( b.xyz - a.xyz );
st = a.st + f * ( b.st - a.st );
normal = a.normal + f * ( b.normal - a.normal );
tangents[0] = a.tangents[0] + f * ( b.tangents[0] - a.tangents[0] );
tangents[1] = a.tangents[1] + f * ( b.tangents[1] - a.tangents[1] );
color[0] = (byte)( a.color[0] + f * ( b.color[0] - a.color[0] ) );
color[1] = (byte)( a.color[1] + f * ( b.color[1] - a.color[1] ) );
color[2] = (byte)( a.color[2] + f * ( b.color[2] - a.color[2] ) );
color[3] = (byte)( a.color[3] + f * ( b.color[3] - a.color[3] ) );
}
ID_INLINE void idDrawVert::SetColor( dword color ) {
*reinterpret_cast<dword *>(this->color) = color;
}
ID_INLINE dword idDrawVert::GetColor( void ) const {
return *reinterpret_cast<const dword *>(this->color);
}
#endif /* !__DRAWVERT_H__ */