add missing files

include/libultra/io/viint.h

@@ -0,0 +1,72 @@
+#ifndef _LIBULTRA_IO_VIINT_H
+#define _LIBULTRA_IO_VIINT_H
+
+#include <PR/os_internal.h>
+
+#define OS_TV_TYPE_PAL 0
+#define OS_TV_TYPE_NTSC 1
+#define OS_TV_TYPE_MPAL 2
+
+//TODO: figure out what this is
+#define VI_STATE_01 0x01
+#define VI_STATE_XSCALE_UPDATED 0x02
+#define VI_STATE_YSCALE_UPDATED 0x04
+#define VI_STATE_08 0x08         //related to control regs changing
+#define VI_STATE_10 0x10         //swap buffer
+#define VI_STATE_BLACK 0x20      //probably related to a black screen
+#define VI_STATE_REPEATLINE 0x40 //repeat line?
+#define VI_STATE_FADE 0x80       //fade
+
+#define VI_CTRL_ANTIALIAS_MODE_3 0x00300 /* Bit [9:8] anti-alias mode */
+#define VI_CTRL_ANTIALIAS_MODE_2 0x00200 /* Bit [9:8] anti-alias mode */
+#define VI_CTRL_ANTIALIAS_MODE_1 0x00100 /* Bit [9:8] anti-alias mode */
+
+#define VI_SCALE_MASK 0xfff //see rcp scale_x/scale_y
+#define VI_2_10_FPART_MASK 0x3ff
+#define VI_SUBPIXEL_SH 0x10
+
+#define BURST(hsync_width, color_width, vsync_width, color_start) \
+    (hsync_width | (color_width << 8) | (vsync_width << 16) | (color_start << 20))
+#define WIDTH(v) v
+#define VSYNC(v) v
+#define HSYNC(duration, leap) (duration | (leap << 16))
+#define LEAP(upper, lower) ((upper << 16) | lower)
+#define START(start, end) ((start << 16) | end)
+
+#define FTOFIX(val, i, f) ((u32)(val * (f32)(1 << f)) & ((1 << (i + f)) - 1))
+
+#define F210(val) FTOFIX(val, 2, 10)
+#define SCALE(scaleup, off) (F210((1.0f / (f32)scaleup)) | (F210((f32)off) << 16))
+
+#define VCURRENT(v) v //seemingly unused
+#define ORIGIN(v) v
+#define VINTR(v) v
+#define HSTART START
+
+typedef struct
+{
+    /* 0x0 */ f32 factor;
+    /* 0x4 */ u16 offset;
+    /* 0x8 */ u32 scale;
+} __OSViScale;
+
+typedef struct
+{
+    /* 0x0 */ u16 state;
+    /* 0x2 */ u16 retraceCount;
+    /* 0x4 */ void *framep;
+    /* 0x8 */ OSViMode *modep;
+    /* 0xC */ u32 control;
+    /* 0x10 */ OSMesgQueue *msgq;
+    /* 0x14 */ OSMesg msg;
+    /* 0x18 */ __OSViScale x;
+    /* 0x24 */ __OSViScale y;
+} __OSViContext;
+
+void __osViSwapContext(void);
+extern __OSViContext *__osViCurr;
+extern __OSViContext *__osViNext;
+__OSViContext *__osViGetCurrentContext(void);
+void __osViInit(void);
+
+#endif // _LIBULTRA_IO_VIINT_H