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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
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 3 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, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#ifndef __HSDXTSOFTWARECODEC_H
#define __HSDXTSOFTWARECODEC_H
#include "HeadSpin.h"
#include "hsCodec.h"
class plMipmap;
class hsDXTSoftwareCodec : public hsCodec
{
private:
hsDXTSoftwareCodec();
public:
~hsDXTSoftwareCodec();
static hsDXTSoftwareCodec& Instance();
static void Init() { fRegistered = Register(); }
plMipmap *CreateCompressedMipmap(plMipmap *uncompressed);
// Uncompresses the given source into a new destination mipmap
plMipmap *CreateUncompressedMipmap( plMipmap *compressed, UInt8 flags = 0 );
// Colorize a compressed mipmap
hsBool ColorizeCompMipmap( plMipmap *bMap, const UInt8 *colorMask );
private:
enum {
kFourColorEncoding,
kThreeColorEncoding
};
void CompressMipmapLevel( plMipmap *uncompressed, plMipmap *compressed );
UInt16 BlendColors16(UInt16 weight1, UInt16 color1, UInt16 weight2, UInt16 color2);
hsRGBAColor32 BlendColors32(UInt32 weight1, hsRGBAColor32 color1, UInt32 weight2, hsRGBAColor32 color2);
Int32 ColorDistanceARGBSquared(hsRGBAColor32 color1, hsRGBAColor32 color2);
UInt16 Color32To16(hsRGBAColor32 color);
// Calculates the DXT format based on a mipmap
UInt8 ICalcCompressedFormat( plMipmap *bMap );
// Copy over a block from a mipmap level to a destination mipmap, converting if necessary
void IXlateColorBlock( plMipmap *destBMap, UInt32 *srcBlock, UInt8 flags = 0 );
// Creates an uncompressed mipmap with the settings to match
plMipmap *ICreateUncompressedMipmap( plMipmap *compressed, UInt8 flags );
// Dispatcher for all the decompression functions
void inline UncompressMipmap( plMipmap *uncompressed, plMipmap *compressed,
UInt8 flags = 0 );
// Decompresses a DXT5 compressed mipmap into a RGB4444 mipmap
void IUncompressMipmapDXT5To16( plMipmap *destBMap, plMipmap *srcBMap );
// Decompresses a DXT5 compressed mipmap into a RGB4444 reversed mipmap
void IUncompressMipmapDXT5To16Weird( plMipmap *destBMap, plMipmap *srcBMap );
// Decompresses a DXT5 compressed mipmap into a RGB8888 mipmap
void IUncompressMipmapDXT5To32( plMipmap *destBMap, plMipmap *srcBMap );
// Decompresses a DXT1 compressed mipmap into a RGB1555 mipmap
void IUncompressMipmapDXT1To16( plMipmap *destBMap, plMipmap *srcBMap );
// Decompresses a DXT1 compressed mipmap into a RGB5551 mipmap
void IUncompressMipmapDXT1To16Weird( plMipmap *destBMap, plMipmap *srcBMap );
// Decompresses a DXT1 compressed mipmap into a RGB8888 mipmap
void IUncompressMipmapDXT1To32( plMipmap *destBMap, plMipmap *srcBMap );
// Decompresses a DXT1 compressed mipmap into an intensity map
void IUncompressMipmapDXT1ToInten( plMipmap *destBMap, plMipmap *srcBMap );
// Decompresses a DXT5 compressed mipmap into an alpha-intensity map
void IUncompressMipmapDXT5ToAInten( plMipmap *destBMap, plMipmap *srcBMap );
// Mixes two RGB8888 colors equally
UInt32 inline IMixEqualRGB32( UInt32 color1, UInt32 color2 );
// Mixes two-thirds of the first RGB8888 color and one-third of the second
UInt32 inline IMixTwoThirdsRGB32( UInt32 twoThirds, UInt32 oneThird );
// Mixes two RGB1555 colors equally
UInt16 inline IMixEqualRGB1555( UInt16 color1, UInt16 color2 );
// Mixes two-thirds of the first RGB1555 color and one-third of the second
UInt16 inline IMixTwoThirdsRGB1555( UInt16 twoThirds, UInt16 oneThird );
// Mixes two RGB5551 colors equally
UInt16 inline IMixEqualRGB5551( UInt16 color1, UInt16 color2 );
// Mixes two-thirds of the first RGB5551 color and one-third of the second
UInt16 inline IMixTwoThirdsRGB5551( UInt16 twoThirds, UInt16 oneThird );
// Mixes two RGB4444 colors equally
UInt16 inline IMixEqualRGB4444( UInt16 color1, UInt16 color2 );
// Mixes two-thirds of the first RGB4444 color and one-third of the second
UInt16 inline IMixTwoThirdsRGB4444( UInt16 twoThirds, UInt16 oneThird );
// Mixes two intensity values equally
UInt8 inline IMixEqualInten( UInt8 color1, UInt8 color2 );
// Mixes two-thirds of the first intensity and one-third of the second
UInt8 inline IMixTwoThirdsInten( UInt8 twoThirds, UInt8 oneThird );
// Converts a color from RGB565 to RGB8888 format, with alpha=0
UInt32 inline IRGB16To32Bit( UInt16 color );
// Converts a color from RGB565 to RGB4444 format, with alpha=0
UInt16 inline IRGB565To4444( UInt16 color );
// Converts a color from RGB565 to RGB1555 format, with alpha=0
UInt16 inline IRGB565To1555( UInt16 color );
// Converts a color from RGB565 to RGB5551 format, with alpha=0
UInt16 inline IRGB565To5551( UInt16 color );
// Converts a color from RGB565 to RGB4444 reversed format, with alpha=0
UInt16 inline IRGB565To4444Rev( UInt16 color );
// Swaps the bytes in a doubleword
UInt32 inline ISwapDwordOrder( UInt32 color );
// Swaps the bytes in a word
UInt16 inline ISwapWordOrder( UInt16 color );
static hsBool Register();
static hsBool fRegistered;
};
#endif // __HSDXTSOFTWARECODEC_H