visetspecial.c
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/*====================================================================
* visetspecial.c
*
* 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* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,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 Unpublished - rights reserved under the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/bbplayer/libultra/monegi/vi/visetspecial.c,v $
*
**************************************************************************/
#include "osint.h"
#include "rcp.h"
#include "viint.h"
#include "assert.h"
#define OS_VI_SPECIAL_ALLSET (OS_VI_GAMMA_ON | OS_VI_GAMMA_OFF | OS_VI_GAMMA_DITHER_ON | OS_VI_GAMMA_DITHER_OFF | OS_VI_DIVOT_ON | OS_VI_DIVOT_OFF | OS_VI_DITHER_FILTER_ON | OS_VI_DITHER_FILTER_OFF)
/*
* Name: osViSetSpecialFeatures
*
* Description:
* Based on the input func, enable/disable various VI special features
* such as GAMMA, GAMMA_DITHER, and DIVOT.
*
* Globals Referenced:
* __osViNext
*/
void
osViSetSpecialFeatures(u32 func)
{
register u32 saveMask;
#ifdef _DEBUG
/* Check that VI manager is running */
if (!__osViDevMgr.active) {
__osError(ERR_OSVISETSPECIAL_VIMGR, 0);
return;
}
/* Check for valid "func" value */
if ((func < OS_VI_GAMMA_ON) || (func > OS_VI_SPECIAL_ALLSET)) {
__osError(ERR_OSVISETSPECIAL_VALUE, 1, func);
return;
}
#endif
/*
* This needs to integrate with current mode control values
*/
saveMask = __osDisableInt();
if (func & OS_VI_GAMMA_ON) {
__osViNext->control |= VI_CTRL_GAMMA_ON;
}
if (func & OS_VI_GAMMA_OFF) {
__osViNext->control &= ~VI_CTRL_GAMMA_ON;
}
if (func & OS_VI_GAMMA_DITHER_ON) {
__osViNext->control |= VI_CTRL_GAMMA_DITHER_ON;
}
if (func & OS_VI_GAMMA_DITHER_OFF) {
__osViNext->control &= ~VI_CTRL_GAMMA_DITHER_ON;
}
if (func & OS_VI_DIVOT_ON) {
__osViNext->control |= VI_CTRL_DIVOT_ON;
}
if (func & OS_VI_DIVOT_OFF) {
__osViNext->control &= ~VI_CTRL_DIVOT_ON;
}
if (func & OS_VI_DITHER_FILTER_ON) {
__osViNext->control |= VI_CTRL_DITHER_FILTER_ON;
/* Turn off bit 8-9 in control registers */
__osViNext->control &= 0xFFFFFCFF;
}
if (func & OS_VI_DITHER_FILTER_OFF) {
__osViNext->control &= ~VI_CTRL_DITHER_FILTER_ON;
/* Restore bit 8-9 with value from mode table */
__osViNext->control |= (__osViNext->modep->comRegs.ctrl & 0x00000300);
}
__osViNext->state |= VI_STATE_CONTROL;
__osRestoreInt(saveMask);
} /* osViSetSpecialFeatures */