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// Include
//----------------------------------------------------------------------------------
#include "EffekseerRenderer.RenderStateBase.h"

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//
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namespace EffekseerRenderer
{
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//
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RenderStateBase::State::State()
{
	Reset();
}

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//
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void RenderStateBase::State::Reset()
{
	DepthTest = false;
	DepthWrite = false;
	AlphaBlend = ::Effekseer::AlphaBlendType::Blend;
	CullingType = ::Effekseer::CullingType::Double;
	TextureFilterTypes.fill(::Effekseer::TextureFilterType::Nearest);
	TextureWrapTypes.fill(::Effekseer::TextureWrapType::Clamp);
	TextureIDs.fill(0);
}

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//
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void RenderStateBase::State::CopyTo(State& state)
{
	state.DepthTest = DepthTest;
	state.DepthWrite = DepthWrite;
	state.AlphaBlend = AlphaBlend;
	state.CullingType = CullingType;
	state.TextureFilterTypes = TextureFilterTypes;
	state.TextureWrapTypes = TextureWrapTypes;
	state.TextureIDs = TextureIDs;
}

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//
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RenderStateBase::RenderStateBase()
{
}

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//
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RenderStateBase::~RenderStateBase()
{
}

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//
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RenderStateBase::State& RenderStateBase::Push()
{
	State newState;
	m_next.CopyTo(newState);
	m_stateStack.push(m_next);
	m_next = newState;
	return m_next;
}

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//
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void RenderStateBase::Pop()
{
	assert(!m_stateStack.empty());

	State top = m_stateStack.top();
	m_stateStack.pop();

	m_next = top;
}

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//
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RenderStateBase::State& RenderStateBase::GetActiveState()
{
	return m_next;
}

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//
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} // namespace EffekseerRenderer
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//
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