Quake: attempt 2duke3d

Change-Id: I4285036e967d7f0722802d43cf2096c808ca5799

1 files changed, 111 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/quake/d_local.h b/apps/plugins/sdl/progs/quake/d_local.h
new file mode 100644
index 0000000..af92489
--- /dev/null
+++ b/apps/plugins/sdl/progs/quake/d_local.h
@@ -0,0 +1,111 @@
+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+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.
+
+*/
+// d_local.h:  private rasterization driver defs
+
+#include "r_shared.h"
+
+//
+// TODO: fine-tune this; it's based on providing some overage even if there
+// is a 2k-wide scan, with subdivision every 8, for 256 spans of 12 bytes each
+//
+#define SCANBUFFERPAD		0x1000
+
+#define R_SKY_SMASK	0x007F0000
+#define R_SKY_TMASK	0x007F0000
+
+#define DS_SPAN_LIST_END	-128
+
+#define SURFCACHE_SIZE_AT_320X200	600*1024
+
+typedef struct surfcache_s
+{
+	struct surfcache_s	*next;
+	struct surfcache_s 	**owner;		// NULL is an empty chunk of memory
+	int					lightadj[MAXLIGHTMAPS]; // checked for strobe flush
+	int					dlight;
+	int					size;		// including header
+	unsigned			width;
+	unsigned			height;		// DEBUG only needed for debug
+	float				mipscale;
+	struct texture_s	*texture;	// checked for animating textures
+	byte				data[4];	// width*height elements
+} surfcache_t;
+
+// !!! if this is changed, it must be changed in asm_draw.h too !!!
+typedef struct sspan_s
+{
+	int				u, v, count;
+} sspan_t;
+
+extern cvar_t	d_subdiv16;
+
+extern float	scale_for_mip;
+
+extern qboolean		d_roverwrapped;
+extern surfcache_t	*sc_rover;
+extern surfcache_t	*d_initial_rover;
+
+extern float	d_sdivzstepu, d_tdivzstepu, d_zistepu;
+extern float	d_sdivzstepv, d_tdivzstepv, d_zistepv;
+extern float	d_sdivzorigin, d_tdivzorigin, d_ziorigin;
+
+fixed16_t	sadjust, tadjust;
+fixed16_t	bbextents, bbextentt;
+
+
+void D_DrawSpans8 (espan_t *pspans);
+void D_DrawSpans16 (espan_t *pspans);
+void D_DrawZSpans (espan_t *pspans);
+void Turbulent8 (espan_t *pspan);
+void D_SpriteDrawSpans (sspan_t *pspan);
+
+void D_DrawSkyScans8 (espan_t *pspan);
+void D_DrawSkyScans16 (espan_t *pspan);
+
+void R_ShowSubDiv (void);
+void (*prealspandrawer)(void);
+surfcache_t	*D_CacheSurface (msurface_t *surface, int miplevel);
+
+extern int D_MipLevelForScale (float scale);
+
+#if id386
+extern void D_PolysetAff8Start (void);
+extern void D_PolysetAff8End (void);
+#endif
+
+extern short *d_pzbuffer;
+extern unsigned int d_zrowbytes, d_zwidth;
+
+extern int	*d_pscantable;
+extern int	d_scantable[MAXHEIGHT];
+
+extern int	d_vrectx, d_vrecty, d_vrectright_particle, d_vrectbottom_particle;
+
+extern int	d_y_aspect_shift, d_pix_min, d_pix_max, d_pix_shift;
+
+extern pixel_t	*d_viewbuffer;
+
+extern short	*zspantable[MAXHEIGHT];
+
+extern int		d_minmip;
+extern float	d_scalemip[3];
+
+extern void (*d_drawspans) (espan_t *pspan);
+