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diff --git a/source/rice_gles/src/TextureFilters.h b/source/rice_gles/src/TextureFilters.h
new file mode 100644
index 0000000..093d2ac
--- /dev/null
+++ b/source/rice_gles/src/TextureFilters.h
@@ -0,0 +1,84 @@
+/*
+Copyright (C) 2003 Rice1964
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+
+#ifndef __FILTERS_H__
+#define __FILTERS_H__
+
+#include "Config.h"
+#include "TextureManager.h"
+
+#define DWORD_MAKE(r, g, b, a)   ((uint32) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b)))
+#define WORD_MAKE(r, g, b, a)   ((uint16) (((a) << 12) | ((r) << 8) | ((g) << 4) | (b)))
+
+extern void InitExternalTextures(void);
+extern void CloseExternalTextures(void);
+
+void Texture2x_32( DrawInfo &srcInfo, DrawInfo &destInfo);
+void Texture2x_16( DrawInfo &srcInfo, DrawInfo &destInfo);
+
+void Texture2x_Interp_32( DrawInfo &srcInfo, DrawInfo &destInfo);
+void Texture2x_Interp_16( DrawInfo &srcInfo, DrawInfo &destInfo);
+
+void Super2xSaI_32( uint32 *srcPtr, uint32 *destPtr, uint32 width, uint32 height, uint32 pitch);
+void Super2xSaI_16( uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch);
+
+void hq4x_16( unsigned char * pIn, unsigned char * pOut, int Xres, int Yres, int SrcPPL, int BpL );
+void hq4x_32( unsigned char * pIn, unsigned char * pOut, int Xres, int Yres, int SrcPPL, int BpL );
+void hq4x_InitLUTs(void);
+
+void SmoothFilter_32(uint32 *pdata, uint32 width, uint32 height, uint32 pitch, uint32 filter=TEXTURE_ENHANCEMENT_WITH_SMOOTH_FILTER_1);
+void SmoothFilter_16(uint16 *pdata, uint32 width, uint32 height, uint32 pitch, uint32 filter=TEXTURE_ENHANCEMENT_WITH_SMOOTH_FILTER_1);
+
+void SharpenFilter_32(uint32 *pdata, uint32 width, uint32 height, uint32 pitch, uint32 filter=TEXTURE_SHARPEN_ENHANCEMENT);
+void SharpenFilter_16(uint16 *pdata, uint32 width, uint32 height, uint32 pitch, uint32 filter=TEXTURE_SHARPEN_ENHANCEMENT);
+
+void hq2x_init(unsigned bits_per_pixel);
+void hq2x_16(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
+void hq2x_32(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
+
+void lq2x_16(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
+void lq2x_32(uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
+
+typedef enum _IMAGE_FILEFORMAT 
+{
+   XIFF_BMP = 0,
+     XIFF_JPG = 1,
+     XIFF_TGA = 2,
+     XIFF_PNG = 3,
+     XIFF_DDS = 4,
+     XIFF_PPM = 5,
+     XIFF_DIB = 6,
+     XIFF_HDR = 7,
+     XIFF_PFM = 8,
+     XIFF_FORCE_DWORD = 0x7fffffff
+} IMAGE_FILEFORMAT;
+
+typedef struct _IMAGE_INFO
+{
+   unsigned int Width;
+   unsigned int Height;
+   unsigned int Depth;
+   unsigned int MipLevels;
+   int          Format;  /* SURFFORMAT */
+   IMAGE_FILEFORMAT ImageFileFormat;
+} IMAGE_INFO;
+
+#endif
+