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diff --git a/src/r_data.h b/src/r_data.h
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+/* Emacs style mode select   -*- C++ -*-
+ *-----------------------------------------------------------------------------
+ *
+ *
+ *  PrBoom: a Doom port merged with LxDoom and LSDLDoom
+ *  based on BOOM, a modified and improved DOOM engine
+ *  Copyright (C) 1999 by
+ *  id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
+ *  Copyright (C) 1999-2000 by
+ *  Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
+ *  Copyright 2005, 2006 by
+ *  Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko
+ *
+ *  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.
+ *
+ * DESCRIPTION:
+ *  Refresh module, data I/O, caching, retrieval of graphics
+ *  by name.
+ *
+ *-----------------------------------------------------------------------------*/
+
+
+#ifndef __R_DATA__
+#define __R_DATA__
+
+#include "r_defs.h"
+#include "r_state.h"
+#include "r_patch.h"
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+// A single patch from a texture definition, basically
+// a rectangular area within the texture rectangle.
+typedef struct
+{
+  int originx, originy;  // Block origin, which has already accounted
+  int patch;             // for the internal origin of the patch.
+} texpatch_t;
+
+//
+// Texture definition.
+// A DOOM wall texture is a list of patches
+// which are to be combined in a predefined order.
+//
+
+typedef struct
+{
+  char  name[8];         // Keep name for switch changing, etc.
+  int   next, index;     // killough 1/31/98: used in hashing algorithm
+  // CPhipps - moved arrays with per-texture entries to elements here
+  unsigned  widthmask;
+  // CPhipps - end of additions
+  short width, height;
+  short patchcount;      // All the patches[patchcount] are drawn
+  texpatch_t patches[1]; // back-to-front into the cached texture.
+} texture_t;
+
+extern int numtextures;
+extern texture_t **textures;
+
+
+const byte *R_GetTextureColumn(const rpatch_t *texpatch, int col);
+
+
+// I/O, setting up the stuff.
+void R_InitData (void);
+void R_PrecacheLevel (void);
+
+
+// Retrieval.
+// Floor/ceiling opaque texture tiles,
+// lookup by name. For animation?
+int R_FlatNumForName (const char* name);   // killough -- const added
+
+
+// R_*TextureNumForName returns the texture number for the texture name, or NO_TEXTURE if 
+//  there is no texture (i.e. "-") specified.
+/* cph 2006/07/23 - defined value for no-texture marker (texture "-" in the WAD file) */
+#define NO_TEXTURE 0
+int PUREFUNC R_TextureNumForName (const char *name);    // killough -- const added; cph - now PUREFUNC
+int PUREFUNC R_SafeTextureNumForName (const char *name, int snum);
+int PUREFUNC R_CheckTextureNumForName (const char *name);
+
+void R_InitTranMap(int);      // killough 3/6/98: translucency initialization
+int R_ColormapNumForName(const char *name);      // killough 4/4/98
+/* cph 2001/11/17 - new func to do lighting calcs and get suitable colour map */
+const lighttable_t* R_ColourMap(int lightlevel, fixed_t spryscale);
+
+extern const byte *main_tranmap, *tranmap;
+
+/* Proff - Added for OpenGL - cph - const char* param */
+void R_SetPatchNum(patchnum_t *patchnum, const char *name);
+
+#endif