minivmac4ios/Mini vMac/mnvm_core/COMOSGLU.h

/*
	COMOSGLU.h

	Copyright (C) 2009 Paul C. Pratt

	You can redistribute this file and/or modify it under the terms
	of version 2 of the GNU General Public License as published by
	the Free Software Foundation.  You should have received a copy
	of the license along with this file; see the file COPYING.

	This file is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	license for more details.
*/

/*
	COMmon code for Operating System GLUe
*/


GLOBALVAR ui3p ROM = nullpr;

GLOBALVAR ui5b vSonyWritableMask = 0;
GLOBALVAR ui5b vSonyInsertedMask = 0;

#if IncludeSonyRawMode
GLOBALVAR blnr vSonyRawMode = falseblnr;
#endif

#if IncludeSonyNew
GLOBALVAR blnr vSonyNewDiskWanted = falseblnr;
GLOBALVAR ui5b vSonyNewDiskSize;
#endif

#if IncludeSonyNameNew
GLOBALVAR tPbuf vSonyNewDiskName = NotAPbuf;
#endif

GLOBALVAR ui5b CurMacDateInSeconds = 0;
GLOBALVAR ui5b CurMacLatitude = 0;
GLOBALVAR ui5b CurMacLongitude = 0;
GLOBALVAR ui5b CurMacDelta = 0;

#if 0 != vMacScreenDepth
GLOBALVAR blnr UseColorMode = falseblnr;
GLOBALVAR blnr ColorModeWorks = falseblnr;
#endif

#if 0 != vMacScreenDepth
GLOBALVAR blnr ColorMappingChanged = falseblnr;
#endif

#if (0 != vMacScreenDepth) && (vMacScreenDepth < 4)
GLOBALVAR ui4r CLUT_reds[CLUT_size];
GLOBALVAR ui4r CLUT_greens[CLUT_size];
GLOBALVAR ui4r CLUT_blues[CLUT_size];
#endif

LOCALVAR blnr RequestMacOff = falseblnr;

GLOBALVAR blnr ForceMacOff = falseblnr;

GLOBALVAR blnr WantMacInterrupt = falseblnr;

GLOBALVAR blnr WantMacReset = falseblnr;

GLOBALVAR ui3b SpeedValue = WantInitSpeedValue;

#if EnableAutoSlow
GLOBALVAR blnr WantNotAutoSlow = (WantInitNotAutoSlow != 0);
#endif

GLOBALVAR ui4b CurMouseV = 0;
GLOBALVAR ui4b CurMouseH = 0;

#if EnableMouseMotion && MayFullScreen
LOCALVAR blnr HaveMouseMotion = falseblnr;
#endif

#if EnableAutoSlow
GLOBALVAR ui5r QuietTime = 0;
GLOBALVAR ui5r QuietSubTicks = 0;
#endif

#if IncludePbufs
LOCALVAR ui5b PbufAllocatedMask;
LOCALVAR ui5b PbufSize[NumPbufs];
#endif

#if IncludePbufs
#define PbufIsAllocated(i) ((PbufAllocatedMask & ((ui5b)1 << (i))) != 0)
#endif

#if IncludePbufs
LOCALFUNC blnr FirstFreePbuf(tPbuf *r)
{
	tPbuf i;

	for (i = 0; i < NumPbufs; ++i) {
		if (! PbufIsAllocated(i)) {
			*r = i;
			return trueblnr;
		}
	}
	return falseblnr;
}
#endif

#if IncludePbufs
LOCALPROC PbufNewNotify(tPbuf Pbuf_No, ui5b count)
{
	PbufSize[Pbuf_No] = count;
	PbufAllocatedMask |= ((ui5b)1 << Pbuf_No);
}
#endif

#if IncludePbufs
LOCALPROC PbufDisposeNotify(tPbuf Pbuf_No)
{
	PbufAllocatedMask &= ~ ((ui5b)1 << Pbuf_No);
}
#endif

#if IncludePbufs
GLOBALFUNC tMacErr CheckPbuf(tPbuf Pbuf_No)
{
	tMacErr result;

	if (Pbuf_No >= NumPbufs) {
		result = mnvm_nsDrvErr;
	} else if (! PbufIsAllocated(Pbuf_No)) {
		result = mnvm_offLinErr;
	} else {
		result = mnvm_noErr;
	}

	return result;
}
#endif

#if IncludePbufs
GLOBALFUNC tMacErr PbufGetSize(tPbuf Pbuf_No, ui5r *Count)
{
	tMacErr result = CheckPbuf(Pbuf_No);

	if (mnvm_noErr == result) {
		*Count = PbufSize[Pbuf_No];
	}

	return result;
}
#endif

LOCALFUNC blnr FirstFreeDisk(tDrive *Drive_No)
{
	tDrive i;

	for (i = 0; i < NumDrives; ++i) {
		if (! vSonyIsInserted(i)) {
			*Drive_No = i;
			return trueblnr;
		}
	}
	return falseblnr;
}

GLOBALFUNC blnr AnyDiskInserted(void)
{
#if 0
	tDrive i;

	for (i = 0; i < NumDrives; ++i) {
		if (vSonyIsInserted(i)) {
			return trueblnr;
		}
	}
	return falseblnr;
#endif
	return 0 != vSonyInsertedMask;
}

GLOBALPROC DiskRevokeWritable(tDrive Drive_No)
{
	vSonyWritableMask &= ~ ((ui5b)1 << Drive_No);
}

LOCALPROC DiskInsertNotify(tDrive Drive_No, blnr locked)
{
	vSonyInsertedMask |= ((ui5b)1 << Drive_No);
	if (! locked) {
		vSonyWritableMask |= ((ui5b)1 << Drive_No);
	}

	QuietEnds();
}

LOCALPROC DiskEjectedNotify(tDrive Drive_No)
{
	vSonyWritableMask &= ~ ((ui5b)1 << Drive_No);
	vSonyInsertedMask &= ~ ((ui5b)1 << Drive_No);
}

/*
	block type - for operating on multiple ui3b elements
		at a time.
*/

#if LittleEndianUnaligned || BigEndianUnaligned

#defin