viint.h
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#ifndef _VIINT_H_
#define _VIINT_H_
/*====================================================================
* viint.h
*
* Copyright 1995, Silicon Graphics, Inc.
* All Rights Reserved.
*
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
* Inc.; the contents of this file may not be disclosed to third
* parties, copied or duplicated in any form, in whole or in part,
* without the prior written permission of Silicon Graphics, Inc.
*
* RESTRICTED RIGHTS LEGEND:
* Use, duplication or disclosure by the Government is subject to
* restrictions as set forth in subdivision (c)(1)(ii) of the Rights
* in Technical Data and Computer Software clause at DFARS
* 252.227-7013, and/or in similar or successor clauses in the FAR,
* DOD or NASA FAR Supplement. Unpublished - rights reserved under the
* Copyright Laws of the United States.
*====================================================================*/
/**************************************************************************
*
* $Revision: 1.1.1.2 $
* $Date: 2002/10/29 08:06:43 $
* $Source: /root/leakn64/depot/rf/sw/n64os20l/libultra/include/viint.h,v $
*
* Description:
* This file contains defines and structures used internally in the VI
* APIs.
*
**************************************************************************/
#ifdef _LANGUAGE_C_PLUS_PLUS
extern "C" {
#endif
#ifdef _LANGUAGE_C
/**************************************************************************
* Video mode definitions
*
* Use 5 bits to uniquely define a mode
*
* video format
* | resolution
* | | pixel size
* | | | antialiasing(aa)/point-sampling(ps)
* | | | | interlace
* mode | | | | |
* --------- - - - - -
* vi_ntsc_lpn1 ntsc lo 16 ps non-interlace
* vi_ntsc_lpf1 ntsc lo 16 ps interlace
* vi_ntsc_lan1 ntsc lo 16 aa non-interlace
* vi_ntsc_laf1 ntsc lo 16 aa interlace
* vi_ntsc_lpn2 ntsc lo 32 ps non-interlace
* vi_ntsc_lpf2 ntsc lo 32 ps interlace
* vi_ntsc_lan2 ntsc lo 32 aa non-interlace
* vi_ntsc_laf2 ntsc lo 32 aa interlace
* vi_ntsc_hpn1 ntsc hi 16 ps normal interlace
* vi_ntsc_hpf1 ntsc hi 16 ps deflickered interlace
* vi_ntsc_han1 ntsc hi 16 aa normal interlace
* vi_ntsc_haf1 ntsc hi 16 aa deflickered interlace
* vi_ntsc_hpn2 ntsc hi 32 ps normal interlace
* vi_ntsc_hpf2 ntsc hi 32 ps deflickered interlace
*
* vi_pal_lpn1 pal lo 16 ps non-interlace
* vi_pal_lpf1 pal lo 16 ps interlace
* vi_pal_lan1 pal lo 16 aa non-interlace
* vi_pal_laf1 pal lo 16 aa interlace
* vi_pal_lpn2 pal lo 32 ps non-interlace
* vi_pal_lpf2 pal lo 32 ps interlace
* vi_pal_lan2 pal lo 32 aa non-interlace
* vi_pal_laf2 pal lo 32 aa interlace
* vi_pal_hpn1 pal hi 16 ps normal interlace
* vi_pal_hpf1 pal hi 16 ps deflickered interlace
* vi_pal_han1 pal hi 16 aa normal interlace
* vi_pal_haf1 pal hi 16 aa deflickered interlace
* vi_pal_hpn2 pal hi 32 ps normal interlace
* vi_pal_hpf2 pal hi 32 ps deflickered interlace
*
* Bit 0: non-interlace (lores)
* Bit 1: interlace (lores)
* Bit 2: normal interlace (hires)
* Bit 3: deflickered interlace (hires)
* Bit 4: antialiasing (aa)
* Bit 5: point-sampling (ps)
* Bit 6: 16-bit pixel size
* Bit 7: 32-bit pixel size
* Bit 8: low resolution
* Bit 9: high resolution
* Bit 10: NTSC video format
* Bit 11: PAL video format
*
**************************************************************************/
#define VI_FIELD1 0
#define VI_FIELD2 1
/**************************************************************************
* VI internal states
*/
#define VI_STATE_NORMAL 0x00
#define VI_STATE_MODE 0x01
#define VI_STATE_X_SCALE 0x02
#define VI_STATE_Y_SCALE 0x04
#define VI_STATE_CONTROL 0x08
#define VI_STATE_FRAME 0x10
#define VI_STATE_BLACK 0x20
#define VI_STATE_REPEAT_LINE 0x40
#define VI_STATE_FADE 0x80
/**************************************************************************
* Structure to hold scaling value (x, y)
*/
typedef struct {
f32 factor; /* Scaling factor 0.0 <= x <= 1.0 */
u16 offset; /* Result origin offset (16-bit) */
u32 scale; /* Result scale (12-bit) */
} __OSViScale;
/**************************************************************************
* Structure for VI context
*/
typedef struct {
u16 state; /* internal state */
u16 retraceCount; /* Number of retrace before get msg */
void *framep; /* pointer to frame buffer */
OSViMode *modep; /* pointer to standard mode struct */
u32 control; /* VI control value */
OSMesgQueue *msgq; /* Application message queue */
OSMesg msg; /* Application message */
__OSViScale x; /* X-scaling */
__OSViScale y; /* Y-scaling */
} __OSViContext;
/**************************************************************************
*
* Extern global variables
*
*/
extern OSDevMgr __osViDevMgr;
extern __OSViContext *__osViCurr;
extern __OSViContext *__osViNext;
extern u32 __additional_scanline;
/**************************************************************************
*
* Function prototypes
*
*/
extern void __osViCreateAccessQueue(void);
extern OSMesgQueue *__osViGetAccessQueue(void);
extern void __osViGetAccess(void);
extern void __osViRelAccess(void);
extern void __osViInit(void);
extern __OSViContext *__osViGetCurrentContext(void);
extern __OSViContext *__osViGetNextContext(void);
extern void __osViSwapContext(void);
#endif /* _LANGUAGE_C */
#ifdef _LANGUAGE_C_PLUS_PLUS
}
#endif
#endif /* _VIINT_H_ */