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public/materialsystem/MaterialSystemUtil.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+// $NoKeywords: $
+//===========================================================================//
+#ifndef MATERIALSYSTEMUTIL_H
+#define MATERIALSYSTEMUTIL_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "bitmap/imageformat.h" //ImageFormat enum definition
+#include "materialsystem/imaterialsystem.h"  // RenderTargetSizeMode_t and MaterialRenderTargetDepth_t definition
+
+//-----------------------------------------------------------------------------
+// Forward declarations
+//-----------------------------------------------------------------------------
+class IMaterial;
+class ITexture;
+class KeyValues;
+
+class KeyValues;
+
+
+//-----------------------------------------------------------------------------
+// Little utility class to deal with material references
+//-----------------------------------------------------------------------------
+class CMaterialReference
+{
+public:
+	// constructor, destructor
+	CMaterialReference( char const* pMaterialName = 0, const char *pTextureGroupName = 0, bool bComplain = true );
+	~CMaterialReference();
+
+	// Attach to a material
+	void Init( const char* pMaterialName, const char *pTextureGroupName, bool bComplain = true );
+	void Init( const char *pMaterialName, KeyValues *pVMTKeyValues );
+	void Init( IMaterial* pMaterial );
+	void Init( CMaterialReference& ref );
+	void Init( const char *pMaterialName, const char *pTextureGroupName, KeyValues *pVMTKeyValues );
+
+	// Detach from a material
+	void Shutdown();
+	bool IsValid() { return m_pMaterial != 0; }
+
+	// Automatic casts to IMaterial
+	operator IMaterial*() { return m_pMaterial; }
+	operator IMaterial*() const { return m_pMaterial; }
+	operator IMaterial const*() const { return m_pMaterial; }
+	IMaterial* operator->() { return m_pMaterial; }
+	
+private:
+	IMaterial* m_pMaterial;
+};
+
+//-----------------------------------------------------------------------------
+// Little utility class to deal with texture references
+//-----------------------------------------------------------------------------
+class CTextureReference
+{
+public:
+	// constructor, destructor
+	CTextureReference( );
+	CTextureReference( const CTextureReference &ref );
+	~CTextureReference();
+
+	// Attach to a texture
+	void Init( char const* pTexture, const char *pTextureGroupName, bool bComplain = true );
+	void InitProceduralTexture( const char *pTextureName, const char *pTextureGroupName, int w, int h, ImageFormat fmt, int nFlags );
+	void InitRenderTarget( int w, int h, RenderTargetSizeMode_t sizeMode, ImageFormat fmt, MaterialRenderTargetDepth_t depth, bool bHDR, char *pStrOptionalName = NULL );
+#if defined( _X360 )
+	// used when RT coupling is disparate (texture is DDR based, surface is EDRAM based)
+	void InitRenderTargetTexture( int width, int height, RenderTargetSizeMode_t sizeMode, ImageFormat fmt, MaterialRenderTargetDepth_t depth, bool bHDR, char *pStrOptionalName = NULL );
+	void InitRenderTargetSurface( int width, int height, ImageFormat fmt, bool bSameAsTexture );
+#endif
+	void Init( ITexture* pTexture );
+
+	// Detach from a texture
+	void Shutdown( bool bDeleteIfUnReferenced = false );
+	bool IsValid() { return m_pTexture != 0; }
+
+	// Automatic casts to ITexture
+	operator ITexture*() { return m_pTexture; }
+	operator ITexture const*() const { return m_pTexture; }
+	ITexture* operator->() { return m_pTexture; }
+
+	// Assignment operator
+	void operator=( CTextureReference &ref );
+
+private:
+	ITexture* m_pTexture;
+};
+
+
+#endif // !MATERIALSYSTEMUTIL_H