daedalus/Source/Graphics/TextureFormat.h
2020-08-22 18:42:41 +10:00

68 lines
1.7 KiB
C

/*
Copyright (C) 2005 StrmnNrmn
This program 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 2
of the License, or (at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef GRAPHICS_TEXTUREFORMAT_H_
#define GRAPHICS_TEXTUREFORMAT_H_
#include <stdlib.h>
#include "Base/Types.h"
enum ETextureFormat
{
TexFmt_5650,
TexFmt_5551,
TexFmt_4444,
TexFmt_8888,
// Palletised
TexFmt_CI4_8888,
TexFmt_CI8_8888,
};
inline bool IsTextureFormatPalettised( ETextureFormat texture_format )
{
return texture_format >= TexFmt_CI4_8888;
}
inline u32 GetBitsPerPixel( ETextureFormat texture_format )
{
switch( texture_format )
{
case TexFmt_5650: return 16;
case TexFmt_5551: return 16;
case TexFmt_4444: return 16;
case TexFmt_8888: return 32;
case TexFmt_CI4_8888: return 4;
case TexFmt_CI8_8888: return 8;
}
#ifdef DAEDALUS_DEBUG_CONSOLE
DAEDALUS_ERROR( "Unhandled texture format" );
#endif
return 8;
}
inline u32 CalcBytesRequired( u32 pixels, ETextureFormat texture_format )
{
return ( pixels * GetBitsPerPixel( texture_format ) + 4 ) / 8;
}
#endif // GRAPHICS_TEXTUREFORMAT_H_