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materialsystem/imorphinternal.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================
+
+#ifndef IMORPHINTERNAL_H
+#define IMORPHINTERNAL_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "materialsystem/imorph.h"
+#include "shaderapi/shareddefs.h"
+
+
+//-----------------------------------------------------------------------------
+// Forward declarations
+//-----------------------------------------------------------------------------
+class ITextureInternal;
+
+
+//-----------------------------------------------------------------------------
+// Render context for morphs
+//-----------------------------------------------------------------------------
+abstract_class IMorphMgrRenderContext
+{
+public:
+};
+
+
+//-----------------------------------------------------------------------------
+//
+// Morph data class 
+//
+//-----------------------------------------------------------------------------
+abstract_class IMorphInternal : public IMorph
+{
+public:
+	virtual void Init( MorphFormat_t format, const char *pDebugName ) = 0;
+	virtual void Bind( IMorphMgrRenderContext *pRenderContext ) = 0;
+	virtual MorphFormat_t GetMorphFormat() const = 0;
+};
+
+
+//-----------------------------------------------------------------------------
+// Morph manager class
+//-----------------------------------------------------------------------------
+abstract_class IMorphMgr
+{
+public:
+	// Allocate,free scratch textures + materials
+	virtual bool ShouldAllocateScratchTextures() = 0;
+	virtual void AllocateScratchTextures() = 0;
+	virtual void FreeScratchTextures() = 0;
+	virtual void AllocateMaterials() = 0;
+	virtual void FreeMaterials() = 0;
+
+	// Returns the morph accumulator scratch texture
+	virtual ITextureInternal *MorphAccumulator() = 0;
+	virtual ITextureInternal *MorphWeights() = 0;
+
+	// Class factory
+	virtual IMorphInternal *CreateMorph() = 0;
+	virtual void DestroyMorph( IMorphInternal *pMorphData ) = 0;
+
+	// Max morphs between Begin/End
+	virtual int MaxHWMorphBatchCount() const = 0;
+
+	// Begin, end morph accumulation phase
+	virtual void BeginMorphAccumulation( IMorphMgrRenderContext *pRenderContext ) = 0;
+	virtual void EndMorphAccumulation( IMorphMgrRenderContext *pRenderContext ) = 0;
+
+	// Accumulate a morph
+	virtual void AccumulateMorph( IMorphMgrRenderContext *pRenderContext, IMorph* pMorph, int nMorphCount, const MorphWeight_t* pWeights ) = 0;
+
+	// Advances frame count (for debugging)
+	virtual void AdvanceFrame() = 0;
+
+	// Returns the location of a particular vertex in the morph accumulator
+	virtual bool GetMorphAccumulatorTexCoord( IMorphMgrRenderContext *pRenderContext, Vector2D *pTexCoord, IMorph *pMorph, int nVertex ) = 0;
+
+	// Allocate, free morph mgr render context data.
+	virtual IMorphMgrRenderContext *AllocateRenderContext() = 0;
+	virtual void FreeRenderContext( IMorphMgrRenderContext *pRenderContext ) = 0;
+};
+
+extern IMorphMgr *g_pMorphMgr;
+
+#endif // IMORPHINTERNAL_H