1 files changed, 87 insertions, 0 deletions
diff --git a/public/nvtc.h b/public/nvtc.h
new file mode 100644
index 0000000..fd1c980
--- /dev/null
+++ b/public/nvtc.h
@@ -0,0 +1,87 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+/*
+ *   Copyright (c) 1997-8  S3 Inc.  All Rights Reserved.
+ *
+ *   Module Name:  s3_intrf.h
+ *
+ *   Purpose:  Constant, structure, and prototype definitions for S3TC
+ *			   interface to DX surface
+ *
+ *   Author:  Dan Hung, Martin Hoffesommer
+ *
+ *   Revision History:
+ *	version Beta 1.00.00-98-03-26
+ */
+
+// Highlevel interface
+
+#ifndef NVTC_H
+#define NVTC_H
+
+#if defined( _WIN32 ) && !defined( _X360 )
+#include <ddraw.h>
+#endif
+
+// RGB encoding types
+#define S3TC_ENCODE_RGB_FULL    		0x0
+#define S3TC_ENCODE_RGB_COLOR_KEY		0x1
+#define S3TC_ENCODE_RGB_ALPHA_COMPARE	0x2
+#define _S3TC_ENCODE_RGB_MASK			0xff
+
+// alpha encoding types
+#define S3TC_ENCODE_ALPHA_NONE			0x000
+#define S3TC_ENCODE_ALPHA_EXPLICIT		0x100
+#define S3TC_ENCODE_ALPHA_INTERPOLATED	0x200
+#define _S3TC_ENCODE_ALPHA_MASK			0xff00
+
+
+#if defined( _WIN32 ) && !defined( _X360 )
+// common encoding types
+//@@@TBD
+
+// error codes
+#define ERROR_ABORTED -1
+
+// Progress Callback for S3TCencode
+typedef BOOL (* LP_S3TC_PROGRESS_CALLBACK)(float fProgress, LPVOID lpUser1, LPVOID lpUser2);
+
+// set alpha reference value for alpha compare encoding
+void S3TCsetAlphaReference(int nRef);
+
+// determine number of bytes needed to compress given source image
+unsigned int S3TCgetEncodeSize(DDSURFACEDESC *lpDesc,	// [in]
+						   unsigned int dwEncodeType 	// [in]
+						   );
+
+// encode (compress) given source image to given destination surface
+void S3TCencode(DDSURFACEDESC *lpSrc,		// [in]
+				PALETTEENTRY *lpPal,		// [in], may be NULL
+				DDSURFACEDESC *lpDest,		// [out]
+				void *lpDestBuf,			// [in]
+				unsigned int dwEncodeType,  // [in]
+				float *weight				// [in]
+				);
+
+int S3TCencodeEx(DDSURFACEDESC *lpSrc,		// [in]
+				PALETTEENTRY *lpPal,		// [in], may be NULL
+				DDSURFACEDESC *lpDest,		// [out]
+				void *lpDestBuf,			// [in]
+				unsigned int dwEncodeType,  // [in]
+				float *weight,				// [in]
+				LP_S3TC_PROGRESS_CALLBACK lpS3TCProgressProc, // [in], may be NULL
+				LPVOID lpArg1,				// in 
+				LPVOID lpArg2				// in 
+				);
+
+// determine number of bytes needed do decompress given compressed image
+unsigned int S3TCgetDecodeSize(DDSURFACEDESC *lpDesc);
+
+// decode (decompress) to ARGB8888
+void S3TCdecode(DDSURFACEDESC *lpSrc,		// [in]
+				DDSURFACEDESC *lpDest,		// [out]
+				void *lpDestBuf				// [in]
+				);
+
+#endif // _WIN32
+
+#endif // NVTC_H