Add DevIL 1.7.8.

libs/DevIL-1.7.8/src-IL/include/il_bits.h

@@ -0,0 +1,43 @@
+//-----------------------------------------------------------------------------
+//
+// ImageLib Sources
+// Copyright (C) 2000-2002 by Denton Woods
+// Last modified: 05/25/2001 <--Y2K Compliant! =]
+//
+// Filename: src-IL/include/il_bits.h
+//
+// Description: Implements a file class that reads/writes bits directly.
+//
+//-----------------------------------------------------------------------------
+
+
+#ifndef BITS_H
+#define BITS_H
+
+#include "il_internal.h"
+
+
+// Struct for dealing with reading bits from a file
+typedef struct BITFILE
+{
+	ILHANDLE	File;
+	ILuint		BitPos;
+	ILint		ByteBitOff;
+	ILubyte		Buff;
+} BITFILE;
+
+// Functions for reading bits from a file
+//BITFILE*	bopen(const char *FileName, const char *Mode);
+ILint		bclose(BITFILE *BitFile);
+BITFILE*	bfile(ILHANDLE File);
+ILint		btell(BITFILE *BitFile);
+ILint		bseek(BITFILE *BitFile, ILuint Offset, ILuint Mode);
+ILint		bread(void *Buffer, ILuint Size, ILuint Number, BITFILE *BitFile);
+//ILint		bwrite(void *Buffer, ILuint Size, ILuint Number, BITFILE *BitFile);
+
+// Useful macros for manipulating bits
+#define SetBits(var, bits)		(var |= bits)
+#define ClearBits(var, bits)	(var &= ~(bits))
+
+
+#endif//BITS_H