/*
-----------------------------------------------------------------------------
This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2009 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-----------------------------------------------------------------------------
*/
#include "OgreStableHeaders.h"

#include "OgrePass.h"
#include "OgreFixedFuncState.h"
#include "OgreException.h"
#include "OgreGpuProgramUsage.h"
#include "OgreTextureUnitState.h"
#include "OgreStringConverter.h"

namespace Ogre {

    //-----------------------------------------------------------------------------
	GeneralFixedFuncState::GeneralFixedFuncState()
    {
		ZeroMemory(this, sizeof(GeneralFixedFuncState));
		mAlphaRejectFunc = CMPF_ALWAYS_PASS;
		mLightingEnabled = true;
		mShadeOptions = SO_GOURAUD;
		mFogMode = FOG_NONE;
		mNormaliseNormals = false;
    }
    //-----------------------------------------------------------------------------
    GeneralFixedFuncState::~GeneralFixedFuncState()
    {

    }
	//-----------------------------------------------------------------------
	void GeneralFixedFuncState::setAlphaRejectFunction(CompareFunction func)
	{
		mAlphaRejectFunc = func;
	}
    //-----------------------------------------------------------------------
    void GeneralFixedFuncState::setLightingEnabled(bool enabled)
    {
	    mLightingEnabled = enabled;
    }
    //-----------------------------------------------------------------------
    bool GeneralFixedFuncState::getLightingEnabled(void) const
    {
	    return mLightingEnabled;
    }
    //-----------------------------------------------------------------------
    void GeneralFixedFuncState::setShadingMode(ShadeOptions mode)
    {
	    mShadeOptions = mode;
    }
    //-----------------------------------------------------------------------
    ShadeOptions GeneralFixedFuncState::getShadingMode(void) const
    {
	    return mShadeOptions;
    }
    //-----------------------------------------------------------------------
    void GeneralFixedFuncState::setFogMode(FogMode mode)
    {
	    mFogMode = mode;
    }
    //-----------------------------------------------------------------------
    FogMode GeneralFixedFuncState::getFogMode(void) const
    {
	    return mFogMode;
    }
	//-----------------------------------------------------------------------
	void GeneralFixedFuncState::setNormaliseNormals( bool normalise )
	{
		mNormaliseNormals = normalise;
	}
	//-----------------------------------------------------------------------
	bool GeneralFixedFuncState::getNormaliseNormals( void ) const
	{
		return mNormaliseNormals;
	}
	//-----------------------------------------------------------------------
	CompareFunction GeneralFixedFuncState::getAlphaRejectFunction( void ) const
	{
		return mAlphaRejectFunc;
	}
	//-----------------------------------------------------------------------
	const uint8 GeneralFixedFuncState::getLightTypeCount( const Light::LightTypes type ) const
	{
		return mLightFromTypeCount[type];
	}
	//-----------------------------------------------------------------------
	void GeneralFixedFuncState::setLightTypeCount( const Light::LightTypes type, const uint8 val )
	{
		mLightFromTypeCount[type] = val;
	}
	//-----------------------------------------------------------------------
	const uint8 GeneralFixedFuncState::getTotalNumberOfLights() const
	{
		uint8 res = 0;
		for( uint8 i = 0 ; i < LIGHT_TYPES_COUNT ; i++ )
		{
			res += mLightFromTypeCount[i];
		}

		return res;
	}	
	//-----------------------------------------------------------------------
	void GeneralFixedFuncState::resetLightTypeCounts()
	{
		for( uint8 i = 0 ; i < LIGHT_TYPES_COUNT ; i++ )
		{
			mLightFromTypeCount[i] = 0;
		}
	}
	//-----------------------------------------------------------------------
	void GeneralFixedFuncState::addOnetoLightTypeCount( const Light::LightTypes type )
	{
		mLightFromTypeCount[type]++;
	}
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	FixedFuncState::FixedFuncState()
	{

	}
	//-----------------------------------------------------------------------
	FixedFuncState::~FixedFuncState()
	{

	}
	//-----------------------------------------------------------------------
	const TextureLayerStateList & FixedFuncState::getTextureLayerStateList() const
	{
		return mTextureLayerStateList;
	}
	//-----------------------------------------------------------------------
	void FixedFuncState::setTextureLayerStateList( const TextureLayerStateList & val )
	{
		mTextureLayerStateList = val;
	}
	//-----------------------------------------------------------------------
	GeneralFixedFuncState & FixedFuncState::getGeneralFixedFuncState()
	{
		return mGeneralFixedFuncState;
	}
	//-----------------------------------------------------------------------
	const bool FixedFuncState::operator<( const FixedFuncState & other ) const
	{
	

		// General
		int memcmpRes = memcmp(&this->mGeneralFixedFuncState, &other.mGeneralFixedFuncState, sizeof(GeneralFixedFuncState))  ;
		if (memcmpRes)
		{
			return memcmpRes > 0;
		}

		// mTextureLayerStateList
		if (mTextureLayerStateList.size() != other.mTextureLayerStateList.size())
		{
			return mTextureLayerStateList.size() > other.mTextureLayerStateList.size();
		}

		if (mTextureLayerStateList.size() > 0)
		{
			int memcmpRes =  memcmp(&mTextureLayerStateList[0], &other.mTextureLayerStateList[0], mTextureLayerStateList.size() * sizeof(TextureLayerState));
			if (memcmpRes)
			{
				return memcmpRes > 0;
			}
		}

		return false;

	}
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	const VertexBufferElementList & VertexBufferDeclaration::getVertexBufferElementList() const
	{
		return mVertexBufferElementList;
	}
	//-----------------------------------------------------------------------
	void VertexBufferDeclaration::setVertexBufferElementList(const VertexBufferElementList & val )
	{
		mVertexBufferElementList = val;
	}
	//-----------------------------------------------------------------------
	const bool VertexBufferDeclaration::operator<( const VertexBufferDeclaration & other ) const
	{
		if(mVertexBufferElementList.size() != other.mVertexBufferElementList.size())
		{
			return  (mVertexBufferElementList.size() > other.mVertexBufferElementList.size());
		}

		if (mVertexBufferElementList.size() > 0)
		{
			return memcmp(&mVertexBufferElementList[0], &other.mVertexBufferElementList[0], mVertexBufferElementList.size() * sizeof(VertexBufferElement)) > 0 ;
		}
		else
		{
			return false;
		}
	}
	//-----------------------------------------------------------------------
	bool VertexBufferDeclaration::hasColor() const 
	{
		return countVertexElementSemantic(VES_DIFFUSE) > 0;
	}
	//-----------------------------------------------------------------------
	uint8 VertexBufferDeclaration::getTexcoordCount() const
	{
		return (uint8)countVertexElementSemantic(VES_TEXTURE_COORDINATES);
	}
	//-----------------------------------------------------------------------
	unsigned short VertexBufferDeclaration::numberOfTexcoord() const
	{
		return countVertexElementSemantic(VES_TEXTURE_COORDINATES);
	}
	//-----------------------------------------------------------------------
	unsigned short VertexBufferDeclaration::countVertexElementSemantic( VertexElementSemantic semantic ) const
	{
		unsigned short res = 0;
		for (unsigned short i = 0 ; i < mVertexBufferElementList.size() ; i++)
		{
			if(mVertexBufferElementList[i].getVertexElementSemantic() == semantic)
			{
				res++;
			}
		}

		return res;
	}
	//-----------------------------------------------------------------------
	VertexBufferDeclaration::VertexBufferDeclaration()
	{
		ZeroMemory(this, sizeof(VertexBufferDeclaration));
	}
	//-----------------------------------------------------------------------
	VertexBufferDeclaration::~VertexBufferDeclaration()
	{

	}
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	TextureType TextureLayerState::getTextureType() const
	{
		return mTextureType;
	}
	//-----------------------------------------------------------------------
	void TextureLayerState::setTextureType( TextureType val )
	{
		mTextureType = val;
	}
	//-----------------------------------------------------------------------
	TexCoordCalcMethod TextureLayerState::getTexCoordCalcMethod() const
	{
		return mTexCoordCalcMethod;
	}
	//-----------------------------------------------------------------------
	void TextureLayerState::setTexCoordCalcMethod( TexCoordCalcMethod val )
	{
		mTexCoordCalcMethod = val;
	}
	//-----------------------------------------------------------------------
	LayerBlendModeEx TextureLayerState::getLayerBlendModeEx() const
	{
		return mLayerBlendOperationEx;
	}
	//-----------------------------------------------------------------------
	void TextureLayerState::setLayerBlendModeEx( LayerBlendModeEx val )
	{
		mLayerBlendOperationEx = val;
	}
	//-----------------------------------------------------------------------
	uint8 TextureLayerState::getCoordIndex() const
	{
		return mCoordIndex;
	}
	//-----------------------------------------------------------------------
	void TextureLayerState::setCoordIndex( uint8 val )
	{
		mCoordIndex = val;
	}
	//-----------------------------------------------------------------------
	TextureLayerState::TextureLayerState()
	{
		ZeroMemory(this, sizeof(TextureLayerState));
	}
	//-----------------------------------------------------------------------
	TextureLayerState::~TextureLayerState()
	{

	}
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	//-----------------------------------------------------------------------
	VertexElementSemantic VertexBufferElement::getVertexElementSemantic() const
	{
		return mVertexElementSemantic;
	}
	//-----------------------------------------------------------------------
	void VertexBufferElement::setVertexElementSemantic( VertexElementSemantic val )
	{
		mVertexElementSemantic = val;
	}
	//-----------------------------------------------------------------------
	VertexElementType VertexBufferElement::getVertexElementType() const
	{
		return mVertexElementType;
	}
	//-----------------------------------------------------------------------
	void VertexBufferElement::setVertexElementType( VertexElementType val )
	{
		mVertexElementType = val;
	}
	//-----------------------------------------------------------------------
	unsigned short VertexBufferElement::getVertexElementIndex() const
	{
		return mVertexElementIndex;
	}
	//-----------------------------------------------------------------------
	void VertexBufferElement::setVertexElementIndex( unsigned short val )
	{
		mVertexElementIndex = val;
	}
	//-----------------------------------------------------------------------
}
