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97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
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/**************************************************************************
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* *
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* Copyright (C) 1995, Silicon Graphics, Inc. *
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* *
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* These coded instructions, statements, and computer programs contain *
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* unpublished proprietary information of Silicon Graphics, Inc., and *
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* are protected by Federal copyright law. They may not be disclosed *
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* to third parties or copied or duplicated in any form, in whole or *
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* in part, without the prior written consent of Silicon Graphics, Inc. *
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* *
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**************************************************************************/
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/*---------------------------------------------------------------------*
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Copyright (C) 1998 Nintendo. (Originated by SGI)
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$RCSfile: os_internal_vi.h,v $
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$Revision: 1.1 $
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$Date: 1998/10/09 08:01:13 $
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*---------------------------------------------------------------------*/
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#ifndef _OS_INTERNAL_VI_H_
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#define _OS_INTERNAL_VI_H_
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#ifdef _LANGUAGE_C_PLUS_PLUS
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extern "C" {
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#endif
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#include <PR/os.h>
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/**************************************************************************
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*
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* Global definitions
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*
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*/
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/*
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* Video Interface (VI) states
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*/
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#define VI_STATE_MODE_UPDATED 0x01
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#define VI_STATE_XSCALE_UPDATED 0x02
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#define VI_STATE_YSCALE_UPDATED 0x04
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#define VI_STATE_CTRL_UPDATED 0x08 // related to control regs changing
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#define VI_STATE_BUFFER_UPDATED 0x10 // swap buffer
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#define VI_STATE_BLACK 0x20 // probably related to a black screen
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#define VI_STATE_REPEATLINE 0x40 // repeat line?
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#define VI_STATE_FADE 0x80 // fade
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/*
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* Video Interface (VI) masks
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*/
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#define VI_SCALE_MASK 0xfff //see rcp scale_x/scale_y
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#define VI_2_10_FPART_MASK 0x3ff
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#define VI_SUBPIXEL_SH 0x10
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#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
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/*
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* Structure for VI context
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*/
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typedef struct {
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/* 0x0 */ f32 factor;
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/* 0x4 */ u16 offset;
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/* 0x8 */ u32 scale;
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} __OSViScale;
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typedef struct {
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/* 0x00 */ u16 state;
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/* 0x02 */ u16 retraceCount;
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/* 0x04 */ void* framep;
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/* 0x08 */ OSViMode *modep;
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/* 0x0c */ u32 control;
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/* 0x10 */ OSMesgQueue *msgq;
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/* 0x14 */ OSMesg *msg;
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/* 0x18 */ __OSViScale x;
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/* 0x24 */ __OSViScale y;
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} __OSViContext;
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/* Video interface (Vi) */
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extern __OSViContext *__osViGetCurrentContext(void);
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extern void __osViSwapContext(void);
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extern void __osViInit(void);
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extern __OSViContext *__osViNext;
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extern __OSViContext *__osViCurr;
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extern u32 __additional_scanline;
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#endif /* _LANGUAGE_C */
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#ifdef _LANGUAGE_C_PLUS_PLUS
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}
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#endif
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#endif /* !_OS_INTERNAL_VI_H */
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