Add missing files from last sync.

public/materialsystem/hardwaretexels.h

@@ -0,0 +1,87 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Hardware Texels
+//
+// Contains texture data that was encoded with the map. The initial use case
+// is for per-texel lightmaps to allow static props to match the lighting
+// of the surrounding BSP geometry.
+// 
+//=============================================================================//
+
+#ifndef HARDWARETEXELS_H
+#define HARDWARETEXELS_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "bitmap/imageformat.h"
+#include "datamap.h"
+
+// valve hardware texels
+#define VHT_VERSION	0
+
+namespace HardwareTexels
+{
+#pragma pack(1)
+
+// ------------------------------------------------------------------------------------------------
+struct MeshHeader_t
+{
+	DECLARE_BYTESWAP_DATADESC();
+
+	// this mesh is part of this lod
+	unsigned int m_nLod;
+
+	// starting at this offset
+	unsigned int m_nOffset;
+
+	// this mesh consumes this many bytes
+	unsigned int m_nBytes;
+
+	// with this width and height
+	unsigned int m_nWidth;
+	unsigned int m_nHeight;
+
+	unsigned int m_nUnused[3];
+};
+
+// ------------------------------------------------------------------------------------------------
+struct FileHeader_t
+{
+	DECLARE_BYTESWAP_DATADESC();
+
+	// file version as defined by VHV_VERSION
+	int m_nVersion;
+
+	// must match checkSum in the .mdl header
+	unsigned int m_nChecksum;
+
+	// all texels are encoded in the same format
+	// This is a value from ImageFormat.
+	unsigned int m_nTexelFormat;
+
+	// Number of meshes
+	int m_nMeshes;
+
+	inline MeshHeader_t *pMesh( int nMesh ) const 
+	{
+		Assert(nMesh < m_nMeshes);
+
+		return (MeshHeader_t *)(((byte *)this) + sizeof(FileHeader_t)) + nMesh;
+	};
+
+	inline void *pTexelBase( int nMesh ) const 
+	{
+		return (void *)((byte *)this + pMesh( nMesh )->m_nOffset);
+	};
+
+	unsigned int m_nUnused[4];
+};
+
+#pragma pack()
+
+}; // end namespace
+
+#endif // HARDWARETEXELS_H
+