diff --git a/src/r_local.h b/src/r_local.h
index ae70cd8a..ebe15512 100644
--- a/src/r_local.h
+++ b/src/r_local.h
@@ -8,177 +8,34 @@
 // terms of the GNU General Public License, version 2.
 // See the 'LICENSE' file for more details.
 //-----------------------------------------------------------------------------
-/// \file  r_draw.h
-/// \brief Low-level span/column drawer functions
+/// \file  r_local.h
+/// \brief Refresh (R_*) module, global header. All the rendering/drawing stuff is here
 
-#ifndef __R_DRAW__
-#define __R_DRAW__
+#ifndef __R_LOCAL__
+#define __R_LOCAL__
 
-#include "r_defs.h"
+// Screen size related parameters.
+#include "doomdef.h"
 
-// -------------------------------
-// COMMON STUFF FOR 8bpp AND 16bpp
-// -------------------------------
-extern UINT8 *ylookup[MAXVIDHEIGHT*4];
-extern UINT8 *ylookup1[MAXVIDHEIGHT*4];
-extern UINT8 *ylookup2[MAXVIDHEIGHT*4];
-extern UINT8 *ylookup3[MAXVIDHEIGHT*4];
-extern UINT8 *ylookup4[MAXVIDHEIGHT*4];
-extern INT32 columnofs[MAXVIDWIDTH*4];
-extern UINT8 *topleft;
+// Binary Angles, sine/cosine/atan lookups.
+#include "tables.h"
 
-// -------------------------
-// COLUMN DRAWING CODE STUFF
-// -------------------------
+// this one holds the max vid sizes and standard aspect
+#include "screen.h"
 
-extern lighttable_t *dc_colormap;
-extern INT32 dc_x, dc_yl, dc_yh;
-extern fixed_t dc_iscale, dc_texturemid;
-extern UINT8 dc_hires;
+#include "m_bbox.h"
 
-extern UINT8 *dc_source; // first pixel in a column
+#include "r_main.h"
+#include "r_bsp.h"
+#include "r_segs.h"
+#include "r_plane.h"
+#include "r_sky.h"
+#include "r_data.h"
+#include "r_things.h"
+#include "r_draw.h"
 
-// translucency stuff here
-extern UINT8 *transtables; // translucency tables, should be (*transtables)[5][256][256]
-extern UINT8 *dc_transmap;
+extern drawseg_t *firstseg;
 
-// translation stuff here
+void SplitScreen_OnChange(void);
 
-extern UINT8 *dc_translation;
-
-extern struct r_lightlist_s *dc_lightlist;
-extern INT32 dc_numlights, dc_maxlights;
-
-//Fix TUTIFRUTI
-extern INT32 dc_texheight;
-
-// -----------------------
-// SPAN DRAWING CODE STUFF
-// -----------------------
-
-extern INT32 ds_y, ds_x1, ds_x2;
-extern lighttable_t *ds_colormap;
-extern fixed_t ds_xfrac, ds_yfrac, ds_xstep, ds_ystep;
-extern UINT8 *ds_source; // start of a 64*64 tile image
-extern UINT8 *ds_transmap;
-
-#ifdef ESLOPE
-typedef struct {
-	float x, y, z;
-} floatv3_t;
-
-extern pslope_t *ds_slope; // Current slope being used
-extern floatv3_t ds_su, ds_sv, ds_sz; // Vectors for... stuff?
-extern float focallengthf, zeroheight;
-#endif
-
-// Variable flat sizes
-extern UINT32 nflatxshift;
-extern UINT32 nflatyshift;
-extern UINT32 nflatshiftup;
-extern UINT32 nflatmask;
-
-/// \brief Top border
-#define BRDR_T 0
-/// \brief Bottom border
-#define BRDR_B 1
-/// \brief Left border
-#define BRDR_L 2
-/// \brief Right border
-#define BRDR_R 3
-/// \brief Topleft border
-#define BRDR_TL 4
-/// \brief Topright border
-#define BRDR_TR 5
-/// \brief Bottomleft border
-#define BRDR_BL 6
-/// \brief Bottomright border
-#define BRDR_BR 7
-
-extern lumpnum_t viewborderlump[8];
-
-// ------------------------------------------------
-// r_draw.c COMMON ROUTINES FOR BOTH 8bpp and 16bpp
-// ------------------------------------------------
-
-#define GTC_CACHE 1
-
-#define TC_DEFAULT    -1
-#define TC_BOSS       -2
-#define TC_METALSONIC -3 // For Metal Sonic battle
-#define TC_ALLWHITE   -4 // For Cy-Brak-demon
-#define TC_STARMAN    -5 // For star power
-
-// Initialize color translation tables, for player rendering etc.
-void R_InitTranslationTables(void);
-UINT8* R_GetTranslationColormap(INT32 skinnum, skincolors_t color, UINT8 flags);
-void R_FlushTranslationColormapCache(void);
-UINT8 R_GetColorByName(const char *name);
-
-// Custom player skin translation
-void R_InitViewBuffer(INT32 width, INT32 height);
-void R_InitViewBorder(void);
-void R_VideoErase(size_t ofs, INT32 count);
-
-// Rendering function.
-#if 0
-void R_FillBackScreen(void);
-
-// If the view size is not full screen, draws a border around it.
-void R_DrawViewBorder(void);
-#endif
-
-// -----------------
-// 8bpp DRAWING CODE
-// -----------------
-
-void R_DrawColumn_8(void);
-#define R_DrawWallColumn_8	R_DrawColumn_8
-void R_DrawShadeColumn_8(void);
-void R_DrawTranslucentColumn_8(void);
-
-#ifdef USEASM
-void ASMCALL R_DrawColumn_8_ASM(void);
-#define R_DrawWallColumn_8_ASM	R_DrawColumn_8_ASM
-void ASMCALL R_DrawShadeColumn_8_ASM(void);
-void ASMCALL R_DrawTranslucentColumn_8_ASM(void);
-void ASMCALL R_Draw2sMultiPatchColumn_8_ASM(void);
-
-void ASMCALL R_DrawColumn_8_MMX(void);
-#define R_DrawWallColumn_8_MMX	R_DrawColumn_8_MMX
-
-void ASMCALL R_Draw2sMultiPatchColumn_8_MMX(void);
-void ASMCALL R_DrawSpan_8_MMX(void);
-#endif
-
-void R_DrawTranslatedColumn_8(void);
-void R_DrawTranslatedTranslucentColumn_8(void);
-void R_DrawSpan_8(void);
-#ifdef ESLOPE
-void R_CalcTiltedLighting(fixed_t start, fixed_t end);
-void R_DrawTiltedSpan_8(void);
-void R_DrawTiltedTranslucentSpan_8(void);
-void R_DrawTiltedSplat_8(void);
-#endif
-void R_DrawSplat_8(void);
-void R_DrawTranslucentSplat_8(void);
-void R_DrawTranslucentSpan_8(void);
-void R_Draw2sMultiPatchColumn_8(void);
-void R_DrawFogSpan_8(void);
-void R_DrawFogColumn_8(void);
-void R_DrawColumnShadowed_8(void);
-
-// ------------------
-// 16bpp DRAWING CODE
-// ------------------
-
-#ifdef HIGHCOLOR
-void R_DrawColumn_16(void);
-void R_DrawWallColumn_16(void);
-void R_DrawTranslucentColumn_16(void);
-void R_DrawTranslatedColumn_16(void);
-void R_DrawSpan_16(void);
-#endif
-
-// =========================================================================
-#endif  // __R_DRAW__
+#endif // __R_LOCAL__
\ No newline at end of file