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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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Additional permissions under GNU GPL version 3 section 7
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If you modify this Program, or any covered work, by linking or
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
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(or a modified version of those libraries),
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
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licensors of this Program grant you additional
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permission to convey the resulting work. Corresponding Source for a
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non-source form of such a combination shall include the source code for
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
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work.
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
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or by snail mail at:
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Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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#ifndef __HSDXTSOFTWARECODEC_H
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#define __HSDXTSOFTWARECODEC_H
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#include "HeadSpin.h"
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#include "hsCodec.h"
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class plMipmap;
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class hsDXTSoftwareCodec : public hsCodec
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{
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private:
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hsDXTSoftwareCodec();
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public:
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~hsDXTSoftwareCodec();
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static hsDXTSoftwareCodec& Instance();
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static void Init() { fRegistered = Register(); }
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plMipmap *CreateCompressedMipmap(plMipmap *uncompressed);
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// Uncompresses the given source into a new destination mipmap
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plMipmap *CreateUncompressedMipmap( plMipmap *compressed, UInt8 flags = 0 );
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// Colorize a compressed mipmap
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hsBool ColorizeCompMipmap( plMipmap *bMap, const UInt8 *colorMask );
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private:
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enum {
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kFourColorEncoding,
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kThreeColorEncoding
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};
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void CompressMipmapLevel( plMipmap *uncompressed, plMipmap *compressed );
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UInt16 BlendColors16(UInt16 weight1, UInt16 color1, UInt16 weight2, UInt16 color2);
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hsRGBAColor32 BlendColors32(UInt32 weight1, hsRGBAColor32 color1, UInt32 weight2, hsRGBAColor32 color2);
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Int32 ColorDistanceARGBSquared(hsRGBAColor32 color1, hsRGBAColor32 color2);
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UInt16 Color32To16(hsRGBAColor32 color);
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// Calculates the DXT format based on a mipmap
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UInt8 ICalcCompressedFormat( plMipmap *bMap );
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// Copy over a block from a mipmap level to a destination mipmap, converting if necessary
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void IXlateColorBlock( plMipmap *destBMap, UInt32 *srcBlock, UInt8 flags = 0 );
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// Creates an uncompressed mipmap with the settings to match
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plMipmap *ICreateUncompressedMipmap( plMipmap *compressed, UInt8 flags );
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// Dispatcher for all the decompression functions
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void inline UncompressMipmap( plMipmap *uncompressed, plMipmap *compressed,
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UInt8 flags = 0 );
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// Decompresses a DXT5 compressed mipmap into a RGB4444 mipmap
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void IUncompressMipmapDXT5To16( plMipmap *destBMap, plMipmap *srcBMap );
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// Decompresses a DXT5 compressed mipmap into a RGB4444 reversed mipmap
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void IUncompressMipmapDXT5To16Weird( plMipmap *destBMap, plMipmap *srcBMap );
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// Decompresses a DXT5 compressed mipmap into a RGB8888 mipmap
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void IUncompressMipmapDXT5To32( plMipmap *destBMap, plMipmap *srcBMap );
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// Decompresses a DXT1 compressed mipmap into a RGB1555 mipmap
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void IUncompressMipmapDXT1To16( plMipmap *destBMap, plMipmap *srcBMap );
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// Decompresses a DXT1 compressed mipmap into a RGB5551 mipmap
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void IUncompressMipmapDXT1To16Weird( plMipmap *destBMap, plMipmap *srcBMap );
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// Decompresses a DXT1 compressed mipmap into a RGB8888 mipmap
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void IUncompressMipmapDXT1To32( plMipmap *destBMap, plMipmap *srcBMap );
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// Decompresses a DXT1 compressed mipmap into an intensity map
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void IUncompressMipmapDXT1ToInten( plMipmap *destBMap, plMipmap *srcBMap );
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// Decompresses a DXT5 compressed mipmap into an alpha-intensity map
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void IUncompressMipmapDXT5ToAInten( plMipmap *destBMap, plMipmap *srcBMap );
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// Mixes two RGB8888 colors equally
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UInt32 inline IMixEqualRGB32( UInt32 color1, UInt32 color2 );
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// Mixes two-thirds of the first RGB8888 color and one-third of the second
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UInt32 inline IMixTwoThirdsRGB32( UInt32 twoThirds, UInt32 oneThird );
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// Mixes two RGB1555 colors equally
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UInt16 inline IMixEqualRGB1555( UInt16 color1, UInt16 color2 );
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// Mixes two-thirds of the first RGB1555 color and one-third of the second
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UInt16 inline IMixTwoThirdsRGB1555( UInt16 twoThirds, UInt16 oneThird );
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// Mixes two RGB5551 colors equally
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UInt16 inline IMixEqualRGB5551( UInt16 color1, UInt16 color2 );
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// Mixes two-thirds of the first RGB5551 color and one-third of the second
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UInt16 inline IMixTwoThirdsRGB5551( UInt16 twoThirds, UInt16 oneThird );
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// Mixes two RGB4444 colors equally
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UInt16 inline IMixEqualRGB4444( UInt16 color1, UInt16 color2 );
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// Mixes two-thirds of the first RGB4444 color and one-third of the second
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UInt16 inline IMixTwoThirdsRGB4444( UInt16 twoThirds, UInt16 oneThird );
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// Mixes two intensity values equally
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UInt8 inline IMixEqualInten( UInt8 color1, UInt8 color2 );
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// Mixes two-thirds of the first intensity and one-third of the second
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UInt8 inline IMixTwoThirdsInten( UInt8 twoThirds, UInt8 oneThird );
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// Converts a color from RGB565 to RGB8888 format, with alpha=0
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UInt32 inline IRGB16To32Bit( UInt16 color );
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// Converts a color from RGB565 to RGB4444 format, with alpha=0
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UInt16 inline IRGB565To4444( UInt16 color );
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// Converts a color from RGB565 to RGB1555 format, with alpha=0
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UInt16 inline IRGB565To1555( UInt16 color );
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// Converts a color from RGB565 to RGB5551 format, with alpha=0
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UInt16 inline IRGB565To5551( UInt16 color );
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// Converts a color from RGB565 to RGB4444 reversed format, with alpha=0
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UInt16 inline IRGB565To4444Rev( UInt16 color );
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// Swaps the bytes in a doubleword
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UInt32 inline ISwapDwordOrder( UInt32 color );
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// Swaps the bytes in a word
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UInt16 inline ISwapWordOrder( UInt16 color );
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static hsBool Register();
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static hsBool fRegistered;
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};
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#endif // __HSDXTSOFTWARECODEC_H
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