initial commit!

libs/libgccvb/world.h

@@ -0,0 +1,66 @@
+#ifndef _LIBGCCVB_WORLD_H
+#define _LIBGCCVB_WORLD_H
+
+
+#include "types.h"
+#include "video.h"
+
+
+typedef struct WORLD 
+{
+	u16 head;
+	u16 gx;
+	s16 gp;
+	u16 gy;
+	u16 mx;
+	s16 mp;
+	u16 my;
+	u16 w;
+	u16 h;
+	u16 param;
+	u16 ovr;
+	u16 spacer[5];
+} WORLD;
+
+extern WORLD* const WA;
+
+/* "vbSetWorld" header flags */
+/* (OR these together to build a World Header) */
+
+#define	WRLD_ON		0xC000	// There_are_two_screens!__USE_THEM!!!
+#define	WRLD_LON	0x8000
+#define	WRLD_RON	0x4000
+#define	WRLD_OBJ	0x3000
+#define	WRLD_AFFINE	0x2000
+#define	WRLD_HBIAS	0x1000
+#define	WRLD_BGMAP	0x0000
+
+#define	WRLD_1x1	0x0000
+#define	WRLD_1x2	0x0100
+#define	WRLD_1x4	0x0200
+#define	WRLD_1x8	0x0300
+#define	WRLD_2x1	0x0400
+#define	WRLD_2x2	0x0500
+#define	WRLD_2x4	0x0600
+#define	WRLD_4x2	0x0900
+#define	WRLD_4x1	0x0800
+#define	WRLD_8x1	0x0C00
+
+#define	WRLD_OVR	0x0080
+#define	WRLD_END	0x0040
+
+/* Macros for world manipulation */
+// (Obsoleted by the WA array of WORLD structures...)
+#define	WORLD_HEAD(n,head)		WAM[(n << 4)] = head
+#define	WORLD_GSET(n,gx,gp,gy)	WAM[(n << 4) + 1] = gx; WAM[(n << 4) + 2] = gp; WAM[(n << 4) + 3] = gy
+#define	WORLD_MSET(n,mx,mp,my)	WAM[(n << 4) + 4] = mx; WAM[(n << 4) + 5] = mp; WAM[(n << 4) + 6] = my
+#define	WORLD_SIZE(n,w,h)		WAM[(n << 4) + 7] = w; WAM[(n << 4) + 8] = h
+#define WORLD_PARAM(n,p)		WAM[(n << 4) + 9] = ((p - 0x20000) >> 1) & 0xFFF0
+#define WORLD_OVER(n,o)			WAM[(n << 4) + 10] = o
+
+/***** World Functions *****/
+// (Obsoleted by the WORLD_* macros...)
+void vbSetWorld (s16 nw, u16 header, u16 gx, s16 gp, u16 gy, u16 mx, s16 mp, u16 my, u16 width, u16 height);
+
+
+#endif