/*==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==*/
#include "hsCodecManager.h"
#include "plMipmap.h"
#include "hsDXTSoftwareCodec.h"

#if HS_BUILD_FOR_WIN32
#include "hsDXTDirectXCodec.h"
#endif

hsCodecManager& hsCodecManager::Instance()
{
	static hsCodecManager the_instance;
	static hsBool initialized = false;

	if (!initialized)
	{
		initialized = true;
		hsDXTSoftwareCodec::Init();

#if HS_BUILD_FOR_WIN32
		hsDXTDirectXCodec::Init();
#endif
	}

	return the_instance;
}

hsCodecManager::hsCodecManager()
{
}

plMipmap *hsCodecManager::CreateCompressedMipmap(UInt32 compressionFormat, plMipmap *uncompressed)
{
	Int32 i, j;
	for (i = 0; i < fCodecTable.Count(); i++)
	{
		if (fCodecTable[i].fCompressionFormat == compressionFormat)
		{
			for (j = 0; j < fCodecTable[i].fCodecList.Count(); j++)
			{
				hsAssert(fCodecTable[i].fCodecList[j].fCodec != 0, 
					"Nil codec in hsCodecManager::CreateCompressedMipmap.");

				plMipmap *bm = 
					fCodecTable[i].fCodecList[j].fCodec->CreateCompressedMipmap(uncompressed);

				if (bm)
				{
					return bm;
				}
			}
			
			return nil;
		}
	}

	return nil;
}

plMipmap *hsCodecManager::CreateUncompressedMipmap(plMipmap *compressed, UInt8 bitDepth)
{
	Int32 i, j;
	for (i = 0; i < fCodecTable.Count(); i++)
	{
		if( fCodecTable[i].fCompressionFormat == compressed->fCompressionType )
		{
			for (j = 0; j < fCodecTable[i].fCodecList.Count(); j++)
			{
				hsAssert(fCodecTable[i].fCodecList[j].fCodec != 0, 
					"Nil codec in hsCodecManager::CreateUncompressedMipmap.");

				plMipmap *bm = 
					fCodecTable[i].fCodecList[j].fCodec->CreateUncompressedMipmap(compressed, bitDepth);

				if (bm)
				{
					return bm;
				}
			}
			
			return nil;
		}
	}

	return nil;
}

hsBool hsCodecManager::ColorizeCompMipmap( plMipmap *bMap, const UInt8 *colorMask )
{
	Int32 i, j;


	for( i = 0; i < fCodecTable.Count(); i++ )
	{
		if( fCodecTable[ i ].fCompressionFormat == bMap->fCompressionType )
		{
			for( j = 0; j < fCodecTable[ i ].fCodecList.Count(); j++ )
			{
				hsAssert( fCodecTable[ i ].fCodecList[ j ].fCodec != 0, 
					"Nil codec in hsCodecManager::CreateUncompressedMipmap." );

				if( fCodecTable[ i ].fCodecList[ j ].fCodec->ColorizeCompMipmap( bMap, colorMask ) )
					return true;
			}
			return false;
		}
	}
	return false;
}

hsBool hsCodecManager::Register(hsCodec *codec, UInt32 compressionFormat, hsScalar priority)
{
	Int32 i, j;
	for (i = 0; i < fCodecTable.Count(); i++)
	{
		if (fCodecTable[i].fCompressionFormat == compressionFormat)
		{
			j = 0;
			while ((j < fCodecTable[i].fCodecList.Count()) &&
				fCodecTable[i].fCodecList[j].fPriority > priority)
				++j;

			hsCodecEntry tempCodecEntry(priority, codec);
			fCodecTable[i].fCodecList.InsertAtIndex(j, tempCodecEntry);

			return true;
		}
	}

	hsCodecList tempCodecList(compressionFormat);
	fCodecTable.Append(tempCodecList);

	hsCodecEntry tempCodecEntry(priority, codec);
	fCodecTable[fCodecTable.Count() - 1].fCodecList.Append(tempCodecEntry);

	return true;
}