Merge commit '0132cbcf33a3ae568c361751a42ff53c41e08f68' as 'external/pure_doom/PureDOOM'

external/pure_doom/PureDOOM/src/DOOM/r_draw.h

@@ -0,0 +1,103 @@
+// Emacs style mode select   -*- C++ -*- 
+//-----------------------------------------------------------------------------
+//
+// $Id:$
+//
+// Copyright (C) 1993-1996 by id Software, Inc.
+//
+// This source is available for distribution and/or modification
+// only under the terms of the DOOM Source Code License as
+// published by id Software. All rights reserved.
+//
+// The source is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
+// for more details.
+//
+// DESCRIPTION:
+//        System specific interface stuff.
+//
+//-----------------------------------------------------------------------------
+
+#ifndef __R_DRAW__
+#define __R_DRAW__
+
+
+#include "r_defs.h"
+
+
+extern lighttable_t* dc_colormap;
+extern int dc_x;
+extern int dc_yl;
+extern int dc_yh;
+extern fixed_t dc_iscale;
+extern fixed_t dc_texturemid;
+
+// first pixel in a column
+extern byte* dc_source;
+
+
+// The span blitting interface.
+// Hook in assembler or system specific BLT
+//  here.
+void R_DrawColumn(void);
+void R_DrawColumnLow(void);
+
+// The Spectre/Invisibility effect.
+void R_DrawFuzzColumn(void);
+void R_DrawFuzzColumnLow(void);
+
+// Draw with color translation tables,
+//  for player sprite rendering,
+//  Green/Red/Blue/Indigo shirts.
+void R_DrawTranslatedColumn(void);
+void R_DrawTranslatedColumnLow(void);
+
+void R_VideoErase(unsigned ofs, int count);
+
+extern int ds_y;
+extern int ds_x1;
+extern int ds_x2;
+
+extern lighttable_t* ds_colormap;
+
+extern fixed_t ds_xfrac;
+extern fixed_t ds_yfrac;
+extern fixed_t ds_xstep;
+extern fixed_t ds_ystep;
+
+// start of a 64*64 tile image
+extern byte* ds_source;
+
+extern byte* translationtables;
+extern byte* dc_translation;
+
+
+// Span blitting for rows, floor/ceiling.
+// No Sepctre effect needed.
+void R_DrawSpan(void);
+
+// Low resolution mode, 160x200?
+void R_DrawSpanLow(void);
+
+void R_InitBuffer(int width, int height);
+
+
+// Initialize color translation tables,
+//  for player rendering etc.
+void R_InitTranslationTables(void);
+
+// Rendering function.
+void R_FillBackScreen(void);
+
+// If the view size is not full screen, draws a border around it.
+void R_DrawViewBorder(void);
+
+
+#endif
+
+//-----------------------------------------------------------------------------
+//
+// $Log:$
+//
+//-----------------------------------------------------------------------------