diff --git a/src/r_plane.c b/src/r_plane.c
index 292b5b2d4..8e1ddb8db 100644
--- a/src/r_plane.c
+++ b/src/r_plane.c
@@ -682,89 +682,6 @@ static void R_DrawSkyPlane(visplane_t *pl)
 	}
 }
 
-//
-// R_CheckPowersOfTwo
-//
-// Self-explanatory?
-//
-boolean R_CheckPowersOfTwo(void)
-{
-	boolean wpow2 = (!(ds_flatwidth & (ds_flatwidth - 1)));
-	boolean hpow2 = (!(ds_flatheight & (ds_flatheight - 1)));
-
-	// Initially, the flat isn't powers-of-two-sized.
-	ds_powersoftwo = false;
-
-	// But if the width and height are powers of two,
-	// and are EQUAL, then it's okay :]
-	if ((ds_flatwidth == ds_flatheight) && (wpow2 && hpow2))
-		ds_powersoftwo = true;
-
-	// Just return ds_powersoftwo.
-	return ds_powersoftwo;
-}
-
-//
-// R_CheckFlatLength
-//
-// Determine the flat's dimensions from the lump length.
-//
-void R_CheckFlatLength(size_t size)
-{
-	switch (size)
-	{
-		case 4194304: // 2048x2048 lump
-			nflatmask = 0x3FF800;
-			nflatxshift = 21;
-			nflatyshift = 10;
-			nflatshiftup = 5;
-			ds_flatwidth = ds_flatheight = 2048;
-			break;
-		case 1048576: // 1024x1024 lump
-			nflatmask = 0xFFC00;
-			nflatxshift = 22;
-			nflatyshift = 12;
-			nflatshiftup = 6;
-			ds_flatwidth = ds_flatheight = 1024;
-			break;
-		case 262144:// 512x512 lump
-			nflatmask = 0x3FE00;
-			nflatxshift = 23;
-			nflatyshift = 14;
-			nflatshiftup = 7;
-			ds_flatwidth = ds_flatheight = 512;
-			break;
-		case 65536: // 256x256 lump
-			nflatmask = 0xFF00;
-			nflatxshift = 24;
-			nflatyshift = 16;
-			nflatshiftup = 8;
-			ds_flatwidth = ds_flatheight = 256;
-			break;
-		case 16384: // 128x128 lump
-			nflatmask = 0x3F80;
-			nflatxshift = 25;
-			nflatyshift = 18;
-			nflatshiftup = 9;
-			ds_flatwidth = ds_flatheight = 128;
-			break;
-		case 1024: // 32x32 lump
-			nflatmask = 0x3E0;
-			nflatxshift = 27;
-			nflatyshift = 22;
-			nflatshiftup = 11;
-			ds_flatwidth = ds_flatheight = 32;
-			break;
-		default: // 64x64 lump
-			nflatmask = 0xFC0;
-			nflatxshift = 26;
-			nflatyshift = 20;
-			nflatshiftup = 10;
-			ds_flatwidth = ds_flatheight = 64;
-			break;
-	}
-}
-
 #ifdef ESLOPE
 static void R_SlopeVectors(visplane_t *pl, INT32 i, float fudge)
 {
diff --git a/src/r_textures.c b/src/r_textures.c
index 9d70b9d5c..60d9a802e 100644
--- a/src/r_textures.c
+++ b/src/r_textures.c
@@ -603,6 +603,89 @@ UINT8 *R_GetTextureFlat(levelflat_t *levelflat, boolean leveltexture, boolean is
 	return flat;
 }
 
+//
+// R_CheckPowersOfTwo
+//
+// Self-explanatory?
+//
+boolean R_CheckPowersOfTwo(void)
+{
+	boolean wpow2 = (!(ds_flatwidth & (ds_flatwidth - 1)));
+	boolean hpow2 = (!(ds_flatheight & (ds_flatheight - 1)));
+
+	// Initially, the flat isn't powers-of-two-sized.
+	ds_powersoftwo = false;
+
+	// But if the width and height are powers of two,
+	// and are EQUAL, then it's okay :]
+	if ((ds_flatwidth == ds_flatheight) && (wpow2 && hpow2))
+		ds_powersoftwo = true;
+
+	// Just return ds_powersoftwo.
+	return ds_powersoftwo;
+}
+
+//
+// R_CheckFlatLength
+//
+// Determine the flat's dimensions from its lump length.
+//
+void R_CheckFlatLength(size_t size)
+{
+	switch (size)
+	{
+		case 4194304: // 2048x2048 lump
+			nflatmask = 0x3FF800;
+			nflatxshift = 21;
+			nflatyshift = 10;
+			nflatshiftup = 5;
+			ds_flatwidth = ds_flatheight = 2048;
+			break;
+		case 1048576: // 1024x1024 lump
+			nflatmask = 0xFFC00;
+			nflatxshift = 22;
+			nflatyshift = 12;
+			nflatshiftup = 6;
+			ds_flatwidth = ds_flatheight = 1024;
+			break;
+		case 262144:// 512x512 lump
+			nflatmask = 0x3FE00;
+			nflatxshift = 23;
+			nflatyshift = 14;
+			nflatshiftup = 7;
+			ds_flatwidth = ds_flatheight = 512;
+			break;
+		case 65536: // 256x256 lump
+			nflatmask = 0xFF00;
+			nflatxshift = 24;
+			nflatyshift = 16;
+			nflatshiftup = 8;
+			ds_flatwidth = ds_flatheight = 256;
+			break;
+		case 16384: // 128x128 lump
+			nflatmask = 0x3F80;
+			nflatxshift = 25;
+			nflatyshift = 18;
+			nflatshiftup = 9;
+			ds_flatwidth = ds_flatheight = 128;
+			break;
+		case 1024: // 32x32 lump
+			nflatmask = 0x3E0;
+			nflatxshift = 27;
+			nflatyshift = 22;
+			nflatshiftup = 11;
+			ds_flatwidth = ds_flatheight = 32;
+			break;
+		default: // 64x64 lump
+			nflatmask = 0xFC0;
+			nflatxshift = 26;
+			nflatyshift = 20;
+			nflatshiftup = 10;
+			ds_flatwidth = ds_flatheight = 64;
+			break;
+	}
+}
+
 //
 // Empty the texture cache (used for load wad at runtime)
 //
diff --git a/src/r_textures.h b/src/r_textures.h
index d42509bdd..e2bb40274 100644
--- a/src/r_textures.h
+++ b/src/r_textures.h
@@ -96,6 +96,9 @@ UINT8 *R_GetColumn(fixed_t tex, INT32 col);
 UINT8 *R_GetFlat(lumpnum_t flatnum);
 UINT8 *R_GetTextureFlat(levelflat_t *levelflat, boolean leveltexture, boolean ispng);
 
+boolean R_CheckPowersOfTwo(void);
+void R_CheckFlatLength(size_t size);
+
 // Returns the texture number for the texture name.
 INT32 R_TextureNumForName(const char *name);
 INT32 R_CheckTextureNumForName(const char *name);