shithub: minivmac

ref: 5f3987b8e5f4c1ce992e5f9caff744af822bcba2
dir: /src/OSGLUCCO.m/

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/*
	OSGLUCCO.m

	Copyright (C) 2012 Paul C. Pratt, SDL by Sam Lantinga and others

	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.
*/

/*
	Operating System GLUe for mac os CoCOa

	All operating system dependent code for the
	Mac OS Cocoa should go here.

	Originally derived from Cocoa port of SDL Library
	by Sam Lantinga (but little trace of that remains).
*/

#include "CNFGRAPI.h"
#include "SYSDEPNS.h"
#include "ENDIANAC.h"

#include "MYOSGLUE.h"

#include "STRCONST.h"

/* --- adapting to API/ABI version differences --- */


#ifndef MAC_OS_X_VERSION_10_5
#define MAC_OS_X_VERSION_10_5 1050
#endif

#ifndef MAC_OS_X_VERSION_10_6
#define MAC_OS_X_VERSION_10_6 1060
#endif


#ifndef WantGraphicsSwitching
#define WantGraphicsSwitching 0
#endif

#if MAC_OS_X_VERSION_10_5 > MAC_OS_X_VERSION_MAX_ALLOWED

typedef unsigned long NSUInteger;
typedef long NSInteger;

typedef struct __CFError * CFErrorRef;

#if WantGraphicsSwitching
#define NSOpenGLPFAAllowOfflineRenderers \
	(NSOpenGLPixelFormatAttribute)96
#endif

#endif

#if MAC_OS_X_VERSION_10_6 > MAC_OS_X_VERSION_MAX_ALLOWED

@protocol NSWindowDelegate <NSObject> @end
@protocol NSApplicationDelegate <NSObject> @end

#endif


LOCALVAR CFBundleRef AppServBunRef;

LOCALVAR blnr DidApplicationServicesBun = falseblnr;

LOCALFUNC blnr HaveApplicationServicesBun(void)
{
	if (! DidApplicationServicesBun) {
		AppServBunRef = CFBundleGetBundleWithIdentifier(
			CFSTR("com.apple.ApplicationServices"));
		DidApplicationServicesBun = trueblnr;
	}
	return (AppServBunRef != NULL);
}

#if MayFullScreen

LOCALVAR CFBundleRef HIToolboxBunRef;

LOCALVAR blnr DidHIToolboxBunRef = falseblnr;

LOCALFUNC blnr HaveHIToolboxBunRef(void)
{
	if (! DidHIToolboxBunRef) {
		HIToolboxBunRef = CFBundleGetBundleWithIdentifier(
			CFSTR("com.apple.HIToolbox"));
		DidHIToolboxBunRef = trueblnr;
	}
	return (HIToolboxBunRef != NULL);
}

#endif


#if MayFullScreen

/* SetSystemUIModeProcPtr API always not available */

typedef UInt32                          MySystemUIMode;
typedef OptionBits                      MySystemUIOptions;

enum {
	MykUIModeNormal                 = 0,
	MykUIModeAllHidden              = 3
};

enum {
	MykUIOptionAutoShowMenuBar      = 1 << 0,
	MykUIOptionDisableAppleMenu     = 1 << 2,
	MykUIOptionDisableProcessSwitch = 1 << 3,
	MykUIOptionDisableForceQuit     = 1 << 4,
	MykUIOptionDisableSessionTerminate = 1 << 5,
	MykUIOptionDisableHide          = 1 << 6
};

typedef OSStatus (*SetSystemUIModeProcPtr)
	(MySystemUIMode inMode, MySystemUIOptions inOptions);
LOCALVAR SetSystemUIModeProcPtr MySetSystemUIMode = NULL;
LOCALVAR blnr DidSetSystemUIMode = falseblnr;

LOCALFUNC blnr HaveMySetSystemUIMode(void)
{
	if (! DidSetSystemUIMode) {
		if (HaveHIToolboxBunRef()) {
			MySetSystemUIMode =
				(SetSystemUIModeProcPtr)
				CFBundleGetFunctionPointerForName(
					HIToolboxBunRef, CFSTR("SetSystemUIMode"));
		}
		DidSetSystemUIMode = trueblnr;
	}
	return (MySetSystemUIMode != NULL);
}

#endif


typedef Boolean (*CFURLCopyResourcePropertyForKeyProcPtr) (
	CFURLRef    url,
	CFStringRef key,
	void        *propertyValueTypeRefPtr,
	CFErrorRef  *error
	);
LOCALVAR CFURLCopyResourcePropertyForKeyProcPtr
	MyCFURLCopyResourcePropertyForKey = NULL;
LOCALVAR blnr DidCFURLCopyResourcePropertyForKey = falseblnr;

LOCALFUNC blnr HaveMyCFURLCopyResourcePropertyForKey(void)
{
	if (! DidCFURLCopyResourcePropertyForKey) {
		if (HaveApplicationServicesBun()) {
			MyCFURLCopyResourcePropertyForKey =
				(CFURLCopyResourcePropertyForKeyProcPtr)
				CFBundleGetFunctionPointerForName(
					AppServBunRef,
					CFSTR("CFURLCopyResourcePropertyForKey"));
		}
		DidCFURLCopyResourcePropertyForKey = trueblnr;
	}
	return (MyCFURLCopyResourcePropertyForKey != NULL);
}


LOCALVAR const CFStringRef *MykCFURLIsAliasFileKey
	= NULL;
LOCALVAR blnr DidkCFURLIsAliasFileKey = falseblnr;

LOCALFUNC blnr HaveMykCFURLIsAliasFileKey(void)
{
	if (! DidkCFURLIsAliasFileKey) {
		if (HaveApplicationServicesBun()) {
			MykCFURLIsAliasFileKey =
				(const CFStringRef *)
				CFBundleGetDataPointerForName(
					AppServBunRef, CFSTR("kCFURLIsAliasFileKey"));
		}
		DidkCFURLIsAliasFileKey = trueblnr;
	}
	return (MykCFURLIsAliasFileKey != NULL);
}


LOCALVAR const CFStringRef *MykCFURLIsSymbolicLinkKey
	= NULL;
LOCALVAR blnr DidkCFURLIsSymbolicLinkKey = falseblnr;

LOCALFUNC blnr HaveMykCFURLIsSymbolicLinkKey(void)
{
	if (! DidkCFURLIsSymbolicLinkKey) {
		if (HaveApplicationServicesBun()) {
			MykCFURLIsSymbolicLinkKey =
				(const CFStringRef *)
				CFBundleGetDataPointerForName(
					AppServBunRef, CFSTR("kCFURLIsSymbolicLinkKey"));
		}
		DidkCFURLIsSymbolicLinkKey = trueblnr;
	}
	return (MykCFURLIsSymbolicLinkKey != NULL);
}


typedef CFDataRef (*CFURLCreateBookmarkDataFromFileProcPtr) (
	CFAllocatorRef allocator, CFURLRef fileURL, CFErrorRef *errorRef);
LOCALVAR CFURLCreateBookmarkDataFromFileProcPtr
	MyCFURLCreateBookmarkDataFromFile = NULL;
LOCALVAR blnr DidCFURLCreateBookmarkDataFromFile = falseblnr;

LOCALFUNC blnr HaveMyCFURLCreateBookmarkDataFromFile(void)
{
	if (! DidCFURLCreateBookmarkDataFromFile) {
		if (HaveApplicationServicesBun()) {
			MyCFURLCreateBookmarkDataFromFile =
				(CFURLCreateBookmarkDataFromFileProcPtr)
				CFBundleGetFunctionPointerForName(AppServBunRef,
					CFSTR("CFURLCreateBookmarkDataFromFile"));
		}
		DidCFURLCreateBookmarkDataFromFile = trueblnr;
	}
	return (MyCFURLCreateBookmarkDataFromFile != NULL);
}


typedef CFOptionFlags MyCFURLBookmarkResolutionOptions;

typedef CFURLRef (*CFURLCreateByResolvingBookmarkDataProcPtr) (
	CFAllocatorRef allocator, CFDataRef bookmark,
	MyCFURLBookmarkResolutionOptions options, CFURLRef relativeToURL,
	CFArrayRef resourcePropertiesToInclude,
	Boolean* isStale, CFErrorRef* error);
LOCALVAR CFURLCreateByResolvingBookmarkDataProcPtr
	MyCFURLCreateByResolvingBookmarkData = NULL;
LOCALVAR blnr DidCFURLCreateByResolvingBookmarkData = falseblnr;

LOCALFUNC blnr HaveMyCFURLCreateByResolvingBookmarkData(void)
{
	if (! DidCFURLCreateByResolvingBookmarkData) {
		if (HaveApplicationServicesBun()) {
			MyCFURLCreateByResolvingBookmarkData =
				(CFURLCreateByResolvingBookmarkDataProcPtr)
				CFBundleGetFunctionPointerForName(AppServBunRef,
					CFSTR("CFURLCreateByResolvingBookmarkData"));
		}
		DidCFURLCreateByResolvingBookmarkData = trueblnr;
	}
	return (MyCFURLCreateByResolvingBookmarkData != NULL);
}


typedef boolean_t (*CGCursorIsVisibleProcPtr)(void);

LOCALVAR CGCursorIsVisibleProcPtr MyCGCursorIsVisible = NULL;
LOCALVAR blnr DidCGCursorIsVisible = falseblnr;

LOCALFUNC blnr HaveMyCGCursorIsVisible(void)
{
	if (! DidCGCursorIsVisible) {
		if (HaveApplicationServicesBun()) {
			MyCGCursorIsVisible =
				(CGCursorIsVisibleProcPtr)
				CFBundleGetFunctionPointerForName(
					AppServBunRef, CFSTR("CGCursorIsVisible"));
		}
		DidCGCursorIsVisible = trueblnr;
	}
	return (MyCGCursorIsVisible != NULL);
}


/* --- some simple utilities --- */

GLOBALOSGLUPROC MyMoveBytes(anyp srcPtr, anyp destPtr, si5b byteCount)
{
	(void) memcpy((char *)destPtr, (char *)srcPtr, byteCount);
}

/* --- control mode and internationalization --- */

#define NeedCell2UnicodeMap 1

#include "INTLCHAR.h"

/* --- sending debugging info to file --- */

LOCALVAR NSString *myAppName = nil;
LOCALVAR NSString *MyDataPath = nil;

#if dbglog_HAVE

#define dbglog_ToStdErr 0

#if ! dbglog_ToStdErr
LOCALVAR FILE *dbglog_File = NULL;
#endif

LOCALFUNC blnr dbglog_open0(void)
{
#if dbglog_ToStdErr
	return trueblnr;
#else
	NSString *myLogPath = [MyDataPath
		stringByAppendingPathComponent: @"dbglog.txt"];
	const char *path = [myLogPath fileSystemRepresentation];

	dbglog_File = fopen(path, "w");
	return (NULL != dbglog_File);
#endif
}

LOCALPROC dbglog_write0(char *s, uimr L)
{
#if dbglog_ToStdErr
	(void) fwrite(s, 1, L, stderr);
#else
	if (NULL != dbglog_File) {
		(void) fwrite(s, 1, L, dbglog_File);
	}
#endif
}

LOCALPROC dbglog_close0(void)
{
#if ! dbglog_ToStdErr
	if (NULL != dbglog_File) {
		fclose(dbglog_File);
		dbglog_File = NULL;
	}
#endif
}

#endif

/* --- information about the environment --- */

#define WantColorTransValid 1

#include "COMOSGLU.h"

#define WantKeyboard_RemapMac 1

#include "PBUFSTDC.h"

#include "CONTROLM.h"

/* --- text translation --- */

LOCALPROC UniCharStrFromSubstCStr(int *L, unichar *x, char *s)
{
	int i;
	int L0;
	ui3b ps[ClStrMaxLength];

	ClStrFromSubstCStr(&L0, ps, s);

	for (i = 0; i < L0; ++i) {
		x[i] = Cell2UnicodeMap[ps[i]];
	}

	*L = L0;
}

LOCALFUNC NSString * NSStringCreateFromSubstCStr(char *s)
{
	int L;
	unichar x[ClStrMaxLength];

	UniCharStrFromSubstCStr(&L, x, s);

	return [NSString stringWithCharacters:x length:L];
}

#if IncludeSonyNameNew
LOCALFUNC blnr MacRomanFileNameToNSString(tPbuf i,
	NSString **r)
{
	ui3p p;
	void *Buffer = PbufDat[i];
	ui5b L = PbufSize[i];

	p = (ui3p)malloc(L /* + 1 */);
	if (p != NULL) {
		NSData *d;
		ui3b *p0 = (ui3b *)Buffer;
		ui3b *p1 = (ui3b *)p;

		if (L > 0) {
			ui5b j = L;

			do {
				ui3b x = *p0++;
				if (x < 32) {
					x = '-';
				} else if (x >= 128) {
				} else {
					switch (x) {
						case '/':
						case '<':
						case '>':
						case '|':
						case ':':
							x = '-';
						default:
							break;
					}
				}
				*p1++ = x;
			} while (--j > 0);

			if ('.' == p[0]) {
				p[0] = '-';
			}
		}

#if 0
		*p1 = 0;
		*r = [NSString stringWithCString:(char *)p
			encoding:NSMacOSRomanStringEncoding];
			/* only as of OS X 10.4 */
		free(p);
#endif

		d = [[NSData alloc] initWithBytesNoCopy:p length:L];

		*r = [[[NSString alloc]
			initWithData:d encoding:NSMacOSRomanStringEncoding]
			autorelease];

		[d release];

		return trueblnr;
	}

	return falseblnr;
}
#endif

#if IncludeSonyGetName || IncludeHostTextClipExchange
LOCALFUNC tMacErr NSStringToRomanPbuf(NSString *string, tPbuf *r)
{
	tMacErr v = mnvm_miscErr;
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
#if 0
	const char *s = [s0
		cStringUsingEncoding: NSMacOSRomanStringEncoding];
	ui5r L = strlen(s);
		/* only as of OS X 10.4 */
#endif
#if 0
	NSData *d0 = [string dataUsingEncoding: NSMacOSRomanStringEncoding];
#endif
	NSData *d0 = [string dataUsingEncoding: NSMacOSRomanStringEncoding
		allowLossyConversion: YES];
	const void *s = [d0 bytes];
	NSUInteger L = [d0 length];

	if (NULL == s) {
		v = mnvm_miscErr;
	} else {
		ui3p p = (ui3p)malloc(L);

		if (NULL == p) {
			v = mnvm_miscErr;
		} else {
			/* memcpy((char *)p, s, L); */
			ui3b *p0 = (ui3b *)s;
			ui3b *p1 = (ui3b *)p;
			int i;

			for (i = L; --i >= 0; ) {
				ui3b v = *p0++;
				if (10 == v) {
					v = 13;
				}
				*p1++ = v;
			}

			v = PbufNewFromPtr(p, L, r);
		}
	}

	[pool release];

	return v;
}
#endif

/* --- drives --- */

LOCALFUNC blnr FindNamedChildPath(NSString *parentPath,
	char *ChildName, NSString **childPath)
{
	blnr v = falseblnr;

#if 0
	NSString *ss = [NSString stringWithCString:s
		encoding:NSASCIIStringEncoding];
		/* only as of OS X 10.4 */
#endif
#if 0
	NSData *d = [NSData dataWithBytes: ChildName
		length: strlen(ChildName)];
	NSString *ss = [[[NSString alloc]
		initWithData:d encoding:NSASCIIStringEncoding]
		autorelease];
#endif
	NSString *ss = NSStringCreateFromSubstCStr(ChildName);
	if (nil != ss) {
		NSString *r = [parentPath stringByAppendingPathComponent: ss];
		if (nil != r) {
			*childPath = r;
			v = trueblnr;
		}
	}

	return v;
}

LOCALFUNC NSString *MyResolveAlias(NSString *filePath,
	Boolean *targetIsFolder)
{
	NSString *resolvedPath = nil;
	CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
		(CFStringRef)filePath, kCFURLPOSIXPathStyle, NO);


	if (url != NULL) {
		if (HaveMyCFURLCopyResourcePropertyForKey()
			&& HaveMykCFURLIsAliasFileKey()
			&& HaveMykCFURLIsSymbolicLinkKey()
			&& HaveMyCFURLCreateBookmarkDataFromFile()
			&& HaveMyCFURLCreateByResolvingBookmarkData())
		{
			BOOL isDir;
			Boolean isStale;
			CFBooleanRef is_alias_file = NULL;
			CFBooleanRef is_symbolic_link = NULL;
			CFDataRef bookmark = NULL;
			CFURLRef resolvedurl = NULL;

			if (MyCFURLCopyResourcePropertyForKey(url,
				*MykCFURLIsAliasFileKey, &is_alias_file, NULL))
			if (CFBooleanGetValue(is_alias_file))
			if (MyCFURLCopyResourcePropertyForKey(url,
				*MykCFURLIsSymbolicLinkKey, &is_symbolic_link, NULL))
			if (! CFBooleanGetValue(is_symbolic_link))
			if (NULL != (bookmark = MyCFURLCreateBookmarkDataFromFile(
				kCFAllocatorDefault, url, NULL)))
			if (NULL != (resolvedurl =
				MyCFURLCreateByResolvingBookmarkData(
					kCFAllocatorDefault,
					bookmark,
					0 /* MyCFURLBookmarkResolutionOptions options */,
					NULL /* relativeToURL */,
					NULL /* resourcePropertiesToInclude */,
					&isStale,
					NULL /* error */)))
			if (nil != (resolvedPath =
				(NSString *)CFURLCopyFileSystemPath(
					resolvedurl, kCFURLPOSIXPathStyle)))
			{
				if ([[NSFileManager defaultManager]
					fileExistsAtPath: resolvedPath isDirectory: &isDir])
				{
					*targetIsFolder = isDir;
				} else
				{
					*targetIsFolder = FALSE;
				}

				[resolvedPath autorelease];
			}

			if (NULL != resolvedurl) {
				CFRelease(resolvedurl);
			}
			if (NULL != bookmark) {
				CFRelease(bookmark);
			}
			if (NULL != is_alias_file) {
				CFRelease(is_alias_file);
			}
			if (NULL != is_symbolic_link) {
				CFRelease(is_symbolic_link);
			}
		} else {
			FSRef fsRef;
			Boolean wasAliased;

			if (CFURLGetFSRef(url, &fsRef)) {
				/*
					FSResolveAliasFile deprecated in 10.8
				*/

				if ((FSResolveAliasFile(&fsRef,
					TRUE /*resolveAliasChains*/,
					targetIsFolder, &wasAliased) == noErr)
					&& wasAliased)
				{
					CFURLRef resolvedurl =
						CFURLCreateFromFSRef(kCFAllocatorDefault,
							&fsRef);
					if (resolvedurl != NULL) {
						resolvedPath =
							(NSString *)CFURLCopyFileSystemPath(
								resolvedurl, kCFURLPOSIXPathStyle);
						[resolvedPath autorelease];
						CFRelease(resolvedurl);
					}
				}
			}
		}

		CFRelease(url);
	}

	return resolvedPath;
}

LOCALFUNC blnr FindNamedChildDirPath(NSString *parentPath,
	char *ChildName, NSString **childPath)
{
	NSString *r;
	BOOL isDir;
	Boolean isDirectory;
	blnr v = falseblnr;

	if (FindNamedChildPath(parentPath, ChildName, &r))
	if ([[NSFileManager defaultManager]
		fileExistsAtPath:r isDirectory: &isDir])
	{
		if (isDir) {
			*childPath = r;
			v = trueblnr;
		} else {
			NSString *RslvPath = MyResolveAlias(r, &isDirectory);
			if (nil != RslvPath) {
				if (isDirectory) {
					*childPath = RslvPath;
					v = trueblnr;
				}
			}
		}
	}

	return v;
}

LOCALFUNC blnr FindNamedChildFilePath(NSString *parentPath,
	char *ChildName, NSString **childPath)
{
	NSString *r;
	BOOL isDir;
	Boolean isDirectory;
	blnr v = falseblnr;

	if (FindNamedChildPath(parentPath, ChildName, &r))
	if ([[NSFileManager defaultManager]
		fileExistsAtPath:r isDirectory: &isDir])
	{
		if (! isDir) {
			NSString *RslvPath = MyResolveAlias(r, &isDirectory);
			if (nil != RslvPath) {
				if (! isDirectory) {
					*childPath = RslvPath;
					v = trueblnr;
				}
			} else {
				*childPath = r;
				v = trueblnr;
			}
		}
	}

	return v;
}


#define NotAfileRef NULL

LOCALVAR FILE *Drives[NumDrives]; /* open disk image files */
#if IncludeSonyGetName || IncludeSonyNew
LOCALVAR NSString *DriveNames[NumDrives];
#endif

LOCALPROC InitDrives(void)
{
	/*
		This isn't really needed, Drives[i] and DriveNames[i]
		need not have valid values when not vSonyIsInserted[i].
	*/
	tDrive i;

	for (i = 0; i < NumDrives; ++i) {
		Drives[i] = NotAfileRef;
#if IncludeSonyGetName || IncludeSonyNew
		DriveNames[i] = nil;
#endif
	}
}

GLOBALOSGLUFUNC tMacErr vSonyTransfer(blnr IsWrite, ui3p Buffer,
	tDrive Drive_No, ui5r Sony_Start, ui5r Sony_Count,
	ui5r *Sony_ActCount)
{
	tMacErr err = mnvm_miscErr;
	FILE *refnum = Drives[Drive_No];
	ui5r NewSony_Count = 0;

	if (0 == fseek(refnum, Sony_Start, SEEK_SET)) {
		if (IsWrite) {
			NewSony_Count = fwrite(Buffer, 1, Sony_Count, refnum);
		} else {
			NewSony_Count = fread(Buffer, 1, Sony_Count, refnum);
		}

		if (NewSony_Count == Sony_Count) {
			err = mnvm_noErr;
		}
	}

	if (nullpr != Sony_ActCount) {
		*Sony_ActCount = NewSony_Count;
	}

	return err; /*& figure out what really to return &*/
}

GLOBALOSGLUFUNC tMacErr vSonyGetSize(tDrive Drive_No, ui5r *Sony_Count)
{
	tMacErr err = mnvm_miscErr;
	FILE *refnum = Drives[Drive_No];
	long v;

	if (0 == fseek(refnum, 0, SEEK_END)) {
		v = ftell(refnum);
		if (v >= 0) {
			*Sony_Count = v;
			err = mnvm_noErr;
		}
	}

	return err; /*& figure out what really to return &*/
}

#ifndef HaveAdvisoryLocks
#define HaveAdvisoryLocks 1
#endif

/*
	What is the difference between fcntl(fd, F_SETLK ...
	and flock(fd ... ?
*/

#if HaveAdvisoryLocks
LOCALFUNC blnr MyLockFile(FILE *refnum)
{
	blnr IsOk = falseblnr;

#if 0
	struct flock fl;
	int fd = fileno(refnum);

	fl.l_start = 0; /* starting offset */
	fl.l_len = 0; /* len = 0 means until end of file */
	/* fl.pid_t l_pid; */ /* lock owner, don't need to set */
	fl.l_type = F_WRLCK; /* lock type: read/write, etc. */
	fl.l_whence = SEEK_SET; /* type of l_start */
	if (-1 == fcntl(fd, F_SETLK, &fl)) {
		MacMsg(kStrImageInUseTitle, kStrImageInUseMessage,
			falseblnr);
	} else {
		IsOk = trueblnr;
	}
#else
	int fd = fileno(refnum);

	if (-1 == flock(fd, LOCK_EX | LOCK_NB)) {
		if (EWOULDBLOCK == errno) {
			/* already locked */
			MacMsg(kStrImageInUseTitle, kStrImageInUseMessage,
				falseblnr);
		} else
		{
			/*
				Failed for other reasons, such as unsupported
				for this volume.
				Don't prevent opening.
			*/
			IsOk = trueblnr;
		}
	} else {
		IsOk = trueblnr;
	}
#endif

	return IsOk;
}
#endif

#if HaveAdvisoryLocks
LOCALPROC MyUnlockFile(FILE *refnum)
{
#if 0
	struct flock fl;
	int fd = fileno(refnum);

	fl.l_start = 0; /* starting offset */
	fl.l_len = 0; /* len = 0 means until end of file */
	/* fl.pid_t l_pid; */ /* lock owner, don't need to set */
	fl.l_type = F_UNLCK;     /* lock type: read/write, etc. */
	fl.l_whence = SEEK_SET;   /* type of l_start */
	if (-1 == fcntl(fd, F_SETLK, &fl)) {
		/* an error occurred */
	}
#else
	int fd = fileno(refnum);

	if (-1 == flock(fd, LOCK_UN)) {
	}
#endif
}
#endif

LOCALFUNC tMacErr vSonyEject0(tDrive Drive_No, blnr deleteit)
{
	FILE *refnum = Drives[Drive_No];

	DiskEjectedNotify(Drive_No);

#if HaveAdvisoryLocks
	MyUnlockFile(refnum);
#endif

	fclose(refnum);
	Drives[Drive_No] = NotAfileRef; /* not really needed */

#if IncludeSonyGetName || IncludeSonyNew
	{
		NSString *filePath = DriveNames[Drive_No];
		if (NULL != filePath) {
			if (deleteit) {
				NSAutoreleasePool *pool =
					[[NSAutoreleasePool alloc] init];
				const char *s = [filePath fileSystemRepresentation];
				remove(s);
				[pool release];
			}
			[filePath release];
			DriveNames[Drive_No] = NULL; /* not really needed */
		}
	}
#endif

	return mnvm_noErr;
}

GLOBALOSGLUFUNC tMacErr vSonyEject(tDrive Drive_No)
{
	return vSonyEject0(Drive_No, falseblnr);
}

#if IncludeSonyNew
GLOBALOSGLUFUNC tMacErr vSonyEjectDelete(tDrive Drive_No)
{
	return vSonyEject0(Drive_No, trueblnr);
}
#endif

LOCALPROC UnInitDrives(void)
{
	tDrive i;

	for (i = 0; i < NumDrives; ++i) {
		if (vSonyIsInserted(i)) {
			(void) vSonyEject(i);
		}
	}
}

#if IncludeSonyGetName
GLOBALOSGLUFUNC tMacErr vSonyGetName(tDrive Drive_No, tPbuf *r)
{
	tMacErr v = mnvm_miscErr;
	NSString *filePath = DriveNames[Drive_No];
	if (NULL != filePath) {
		NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
		NSString *s0 = [filePath lastPathComponent];
		v = NSStringToRomanPbuf(s0, r);

		[pool release];
	}

	return v;
}
#endif

LOCALFUNC blnr Sony_Insert0(FILE *refnum, blnr locked,
	NSString *filePath)
{
	tDrive Drive_No;
	blnr IsOk = falseblnr;

	if (! FirstFreeDisk(&Drive_No)) {
		MacMsg(kStrTooManyImagesTitle, kStrTooManyImagesMessage,
			falseblnr);
	} else {
		/* printf("Sony_Insert0 %d\n", (int)Drive_No); */

#if HaveAdvisoryLocks
		if (locked || MyLockFile(refnum))
#endif
		{
			Drives[Drive_No] = refnum;
			DiskInsertNotify(Drive_No, locked);

#if IncludeSonyGetName || IncludeSonyNew
			DriveNames[Drive_No] = [filePath retain];
#endif

			IsOk = trueblnr;
		}
	}

	if (! IsOk) {
		fclose(refnum);
	}

	return IsOk;
}

LOCALFUNC blnr Sony_Insert1(NSString *filePath, blnr silentfail)
{
	/* const char *drivepath = [filePath UTF8String]; */
	const char *drivepath = [filePath fileSystemRepresentation];
	blnr locked = falseblnr;
	/* printf("Sony_Insert1 %s\n", drivepath); */
	FILE *refnum = fopen(drivepath, "rb+");
	if (NULL == refnum) {
		locked = trueblnr;
		refnum = fopen(drivepath, "rb");
	}
	if (NULL == refnum) {
		if (! silentfail) {
			MacMsg(kStrOpenFailTitle, kStrOpenFailMessage, falseblnr);
		}
	} else {
		return Sony_Insert0(refnum, locked, filePath);
	}
	return falseblnr;
}

LOCALFUNC blnr Sony_Insert2(char *s)
{
	NSString *sPath;

	if (! FindNamedChildFilePath(MyDataPath, s, &sPath)) {
		return falseblnr;
	} else {
		return Sony_Insert1(sPath, trueblnr);
	}
}

LOCALFUNC tMacErr LoadMacRomPath(NSString *RomPath)
{
	FILE *ROM_File;
	int File_Size;
	tMacErr err = mnvm_fnfErr;
	const char *path = [RomPath fileSystemRepresentation];

	ROM_File = fopen(path, "rb");
	if (NULL != ROM_File) {
		File_Size = fread(ROM, 1, kROM_Size, ROM_File);
		if (kROM_Size != File_Size) {
			if (feof(ROM_File)) {
				MacMsgOverride(kStrShortROMTitle,
					kStrShortROMMessage);
				err = mnvm_eofErr;
			} else {
				MacMsgOverride(kStrNoReadROMTitle,
					kStrNoReadROMMessage);
				err = mnvm_miscErr;
			}
		} else {
			err = ROM_IsValid();
		}
		fclose(ROM_File);
	}

	return err;
}

LOCALFUNC blnr Sony_Insert1a(NSString *filePath)
{
	blnr v;

	if (! ROM_loaded) {
		v = (mnvm_noErr == LoadMacRomPath(filePath));
	} else {
		v = Sony_Insert1(filePath, falseblnr);
	}

	return v;
}

LOCALPROC Sony_ResolveInsert(NSString *filePath)
{
	Boolean isDirectory;
	NSString *RslvPath = MyResolveAlias(filePath, &isDirectory);
	if (nil != RslvPath) {
		if (! isDirectory) {
			(void) Sony_Insert1a(RslvPath);
		}
	} else {
		(void) Sony_Insert1a(filePath);
	}
}

LOCALFUNC blnr Sony_InsertIth(int i)
{
	blnr v;

	if ((i > 9) || ! FirstFreeDisk(nullpr)) {
		v = falseblnr;
	} else {
		char s[] = "disk?.dsk";

		s[4] = '0' + i;

		v = Sony_Insert2(s);
	}

	return v;
}

LOCALFUNC blnr LoadInitialImages(void)
{
	if (! AnyDiskInserted()) {
		int i;

		for (i = 1; Sony_InsertIth(i); ++i) {
			/* stop on first error (including file not found) */
		}
	}

	return trueblnr;
}

#if IncludeSonyNew
LOCALFUNC blnr WriteZero(FILE *refnum, ui5b L)
{
#define ZeroBufferSize 2048
	ui5b i;
	ui3b buffer[ZeroBufferSize];

	memset(&buffer, 0, ZeroBufferSize);

	while (L > 0) {
		i = (L > ZeroBufferSize) ? ZeroBufferSize : L;
		if (fwrite(buffer, 1, i, refnum) != i) {
			return falseblnr;
		}
		L -= i;
	}
	return trueblnr;
}
#endif

#if IncludeSonyNew
LOCALPROC MakeNewDisk0(ui5b L, NSString *sPath)
{
	blnr IsOk = falseblnr;
	const char *drivepath = [sPath fileSystemRepresentation];
	FILE *refnum = fopen(drivepath, "wb+");
	if (NULL == refnum) {
		MacMsg(kStrOpenFailTitle, kStrOpenFailMessage, falseblnr);
	} else {
		if (WriteZero(refnum, L)) {
			IsOk = Sony_Insert0(refnum, falseblnr, sPath);
			refnum = NULL;
		}
		if (refnum != NULL) {
			fclose(refnum);
		}
		if (! IsOk) {
			(void) remove(drivepath);
		}
	}
}
#endif

/* --- ROM --- */

LOCALFUNC tMacErr LoadMacRomFrom(NSString *parentPath)
{
	NSString *RomPath;
	tMacErr err = mnvm_fnfErr;

	if (FindNamedChildFilePath(parentPath, RomFileName, &RomPath)) {
		err = LoadMacRomPath(RomPath);
	}

	return err;
}

LOCALFUNC tMacErr LoadMacRomFromAppDir(void)
{
	return LoadMacRomFrom(MyDataPath);
}

LOCALFUNC tMacErr LoadMacRomFromPrefDir(void)
{
	NSString *PrefsPath;
	NSString *GryphelPath;
	NSString *RomsPath;
	tMacErr err = mnvm_fnfErr;
	NSArray *paths = NSSearchPathForDirectoriesInDomains(
		NSLibraryDirectory, NSUserDomainMask, YES);
	if ((nil != paths) && ([paths count] > 0))
	{
		NSString *LibPath = [paths objectAtIndex:0];
		if (FindNamedChildDirPath(LibPath, "Preferences", &PrefsPath))
		if (FindNamedChildDirPath(PrefsPath, "Gryphel", &GryphelPath))
		if (FindNamedChildDirPath(GryphelPath, "mnvm_rom", &RomsPath))
		{
			err = LoadMacRomFrom(RomsPath);
		}
	}

	return err;
}

LOCALFUNC tMacErr LoadMacRomFromGlobalDir(void)
{
	NSString *GryphelPath;
	NSString *RomsPath;
	tMacErr err = mnvm_fnfErr;
	NSArray *paths = NSSearchPathForDirectoriesInDomains(
		NSApplicationSupportDirectory, NSLocalDomainMask, NO);
	if ((nil != paths) && ([paths count] > 0))
	{
		NSString *LibPath = [paths objectAtIndex:0];
		if (FindNamedChildDirPath(LibPath, "Gryphel", &GryphelPath))
		if (FindNamedChildDirPath(GryphelPath, "mnvm_rom", &RomsPath))
		{
			err = LoadMacRomFrom(RomsPath);
		}
	}

	return err;
}

LOCALFUNC blnr LoadMacRom(void)
{
	tMacErr err;

	if (mnvm_fnfErr == (err = LoadMacRomFromAppDir()))
	if (mnvm_fnfErr == (err = LoadMacRomFromPrefDir()))
	if (mnvm_fnfErr == (err = LoadMacRomFromGlobalDir()))
	{
	}

	return trueblnr; /* keep launching Mini vMac, regardless */
}


#if IncludeHostTextClipExchange
GLOBALOSGLUFUNC tMacErr HTCEexport(tPbuf i)
{
	void *Buffer;
	ui5r L;
	tMacErr err = mnvm_miscErr;

	PbufKillToPtr(&Buffer, &L, i);

	if (L > 0) {
		int j;
		ui3b *p = (ui3b *)Buffer;

		for (j = L; --j >= 0; ) {
			ui3b v = *p;
			if (13 == v) {
				*p = 10;
			}
			++p;
		}
	}

	{
		NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
		NSData *d = [[NSData alloc]
			initWithBytesNoCopy: Buffer length: L];
		/* NSData *d = [NSData dataWithBytes: Buffer length: L]; */
		NSString *ss = [[[NSString alloc]
			initWithData:d encoding:NSMacOSRomanStringEncoding]
			autorelease];
		NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
		NSArray *newTypes =
			[NSArray arrayWithObject: NSStringPboardType];

		(void) [pasteboard declareTypes: newTypes owner: nil];
		if ([pasteboard setString: ss forType: NSStringPboardType]) {
			err = mnvm_noErr;
		}

		[d release];

		[pool release];
	}

	return err;
}
#endif

#if IncludeHostTextClipExchange
GLOBALOSGLUFUNC tMacErr HTCEimport(tPbuf *r)
{
	tMacErr err = mnvm_miscErr;
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
	NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
	NSArray *supportedTypes = [NSArray
		arrayWithObject: NSStringPboardType];
	NSString *available = [pasteboard
		availableTypeFromArray: supportedTypes];

	if (nil != available) {
		NSString *string = [pasteboard
			stringForType: NSStringPboardType];
		if (nil != string) {
			err = NSStringToRomanPbuf(string, r);
		}
	}

	[pool release];

	return err;
}
#endif


#if EmLocalTalk

#include "BPFILTER.h"

#endif


#define UseCGContextDrawImage 0

LOCALVAR NSWindow *MyWindow = nil;
LOCALVAR NSView *MyNSview = nil;
#if UseCGContextDrawImage
LOCALVAR NSGraphicsContext *MyNSgfxContext = nil;
LOCALVAR CGContextRef MyCGcontext = nil;
LOCALVAR void *MyPixels = NULL;
LOCALVAR ui4b MyPitch;
LOCALVAR ui3b MyBytesPerPixel;
#endif

LOCALVAR NSOpenGLContext *MyNSOpnGLCntxt = nil;
LOCALVAR short GLhOffset;
LOCALVAR short GLvOffset;
	/* OpenGL coordinates of upper left point of drawing area */


LOCALPROC MyHideCursor(void)
{
	[NSCursor hide];
}

LOCALPROC MyShowCursor(void)
{
	if (nil != MyWindow) {
		[MyWindow invalidateCursorRectsForView:
			MyNSview];
	}
#if 0
	[cursor->nscursor performSelectorOnMainThread: @selector(set)
		withObject: nil waitUntilDone: NO];
#endif
#if 0
	[[NSCursor arrowCursor] set];
#endif
	[NSCursor unhide];
}

#if EnableMoveMouse
LOCALFUNC CGPoint QZ_PrivateSDLToCG(NSPoint *p)
{
	CGPoint cgp;

	*p = [MyNSview convertPoint: *p toView: nil];
	p->y = [MyNSview frame].size.height - p->y;
	*p = [MyWindow convertBaseToScreen: *p];

	cgp.x = p->x;
	cgp.y = CGDisplayPixelsHigh(kCGDirectMainDisplay)
		- p->y;

	return cgp;
}
#endif

LOCALPROC QZ_GetMouseLocation(NSPoint *p)
{
	/* incorrect while window is being dragged */

	*p = [NSEvent mouseLocation]; /* global coordinates */
	if (nil != MyWindow) {
		*p = [MyWindow convertScreenToBase: *p];
	}
	*p = [MyNSview convertPoint: *p fromView: nil];
	p->y = [MyNSview frame].size.height - p->y;
}

/* --- keyboard --- */

LOCALVAR NSUInteger MyCurrentMods = 0;

/*
	Apple documentation says:
	"The lower 16 bits of the modifier flags are reserved
	for device-dependent bits."

	observed to be:
*/
#define My_NSLShiftKeyMask   0x0002
#define My_NSRShiftKeyMask   0x0004
#define My_NSLControlKeyMask 0x0001
#define My_NSRControlKeyMask 0x2000
#define My_NSLCommandKeyMask 0x0008
#define My_NSRCommandKeyMask 0x0010
#define My_NSLOptionKeyMask  0x0020
#define My_NSROptionKeyMask  0x0040
/*
	Avoid using the above unless it is
	really needed.
*/

LOCALPROC MyUpdateKeyboardModifiers(NSUInteger newMods)
{
	NSUInteger changeMask = MyCurrentMods ^ newMods;

	if (0 != changeMask) {
		if (0 != (changeMask & NSAlphaShiftKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_CapsLock,
				0 != (newMods & NSAlphaShiftKeyMask));
		}

#if MKC_formac_RShift == MKC_formac_Shift
		if (0 != (changeMask & NSShiftKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_Shift,
				0 != (newMods & NSShiftKeyMask));
		}
#else
		if (0 != (changeMask & My_NSLShiftKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_Shift,
				0 != (newMods & My_NSLShiftKeyMask));
		}
		if (0 != (changeMask & My_NSRShiftKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_RShift,
				0 != (newMods & My_NSRShiftKeyMask));
		}
#endif

#if MKC_formac_RControl == MKC_formac_Control
		if (0 != (changeMask & NSControlKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_Control,
				0 != (newMods & NSControlKeyMask));
		}
#else
		if (0 != (changeMask & My_NSLControlKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_Control,
				0 != (newMods & My_NSLControlKeyMask));
		}
		if (0 != (changeMask & My_NSRControlKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_RControl,
				0 != (newMods & My_NSRControlKeyMask));
		}
#endif

#if MKC_formac_RCommand == MKC_formac_Command
		if (0 != (changeMask & NSCommandKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_Command,
				0 != (newMods & NSCommandKeyMask));
		}
#else
		if (0 != (changeMask & My_NSLCommandKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_Command,
				0 != (newMods & My_NSLCommandKeyMask));
		}
		if (0 != (changeMask & My_NSRCommandKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_RCommand,
				0 != (newMods & My_NSRCommandKeyMask));
		}
#endif

#if MKC_formac_ROption == MKC_formac_Option
		if (0 != (changeMask & NSAlternateKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_Option,
				0 != (newMods & NSAlternateKeyMask));
		}
#else
		if (0 != (changeMask & My_NSLOptionKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_Option,
				0 != (newMods & My_NSLOptionKeyMask));
		}
		if (0 != (changeMask & My_NSROptionKeyMask)) {
			Keyboard_UpdateKeyMap2(MKC_formac_ROption,
				0 != (newMods & My_NSROptionKeyMask));
		}
#endif

		MyCurrentMods = newMods;
	}
}

/* --- mouse --- */

/* cursor hiding */

LOCALVAR blnr WantCursorHidden = falseblnr;

#if MayFullScreen
LOCALVAR short hOffset;
	/* number of pixels to left of drawing area in window */
LOCALVAR short vOffset;
	/* number of pixels above drawing area in window */
#endif

#if MayFullScreen
LOCALVAR blnr GrabMachine = falseblnr;
#endif

#if VarFullScreen
LOCALVAR blnr UseFullScreen = (0 != WantInitFullScreen);
#endif

#if EnableMagnify
LOCALVAR blnr UseMagnify = (0 != WantInitMagnify);
#endif

LOCALVAR blnr gBackgroundFlag = falseblnr;
LOCALVAR blnr CurSpeedStopped = trueblnr;

#if EnableMagnify
#define MaxScale MyWindowScale
#else
#define MaxScale 1
#endif

LOCALVAR blnr HaveCursorHidden = falseblnr;

LOCALPROC ForceShowCursor(void)
{
	if (HaveCursorHidden) {
		HaveCursorHidden = falseblnr;
		MyShowCursor();
	}
}

/* cursor moving */

#if EnableMoveMouse
LOCALFUNC blnr MyMoveMouse(si4b h, si4b v)
{
	NSPoint p;
	CGPoint cgp;

#if VarFullScreen
	if (UseFullScreen)
#endif
#if MayFullScreen
	{
		h -= ViewHStart;
		v -= ViewVStart;
	}
#endif

#if EnableMagnify
	if (UseMagnify) {
		h *= MyWindowScale;
		v *= MyWindowScale;
	}
#endif

#if VarFullScreen
	if (UseFullScreen)
#endif
#if MayFullScreen
	{
		h += hOffset;
		v += vOffset;
	}
#endif

	p = NSMakePoint(h, v);
	cgp = QZ_PrivateSDLToCG(&p);

	/*
		this is the magic call that fixes cursor "freezing"
		after warp
	*/
	CGAssociateMouseAndMouseCursorPosition(0);
	CGWarpMouseCursorPosition(cgp);
	CGAssociateMouseAndMouseCursorPosition(1);

#if 0
	if (noErr != CGSetLocalEventsSuppressionInterval(0.0)) {
		/* don't use MacMsg which can call MyMoveMouse */
	}
	if (noErr != CGWarpMouseCursorPosition(cgp)) {
		/* don't use MacMsg which can call MyMoveMouse */
	}
#endif

	return trueblnr;
}
#endif

#if EnableFSMouseMotion
LOCALPROC AdjustMouseMotionGrab(void)
{
#if MayFullScreen
	if (GrabMachine) {
		/*
			if magnification changes, need to reset,
			even if HaveMouseMotion already true
		*/
		if (MyMoveMouse(ViewHStart + (ViewHSize / 2),
			ViewVStart + (ViewVSize / 2)))
		{
			SavedMouseH = ViewHStart + (ViewHSize / 2);
			SavedMouseV = ViewVStart + (ViewVSize / 2);
			HaveMouseMotion = trueblnr;
		}
	} else
#endif
	{
		if (HaveMouseMotion) {
			(void) MyMoveMouse(CurMouseH, CurMouseV);
			HaveMouseMotion = falseblnr;
		}
	}
}
#endif

#if EnableFSMouseMotion
LOCALPROC MyMouseConstrain(void)
{
	si4b shiftdh;
	si4b shiftdv;

	if (SavedMouseH < ViewHStart + (ViewHSize / 4)) {
		shiftdh = ViewHSize / 2;
	} else if (SavedMouseH > ViewHStart + ViewHSize - (ViewHSize / 4)) {
		shiftdh = - ViewHSize / 2;
	} else {
		shiftdh = 0;
	}
	if (SavedMouseV < ViewVStart + (ViewVSize / 4)) {
		shiftdv = ViewVSize / 2;
	} else if (SavedMouseV > ViewVStart + ViewVSize - (ViewVSize / 4)) {
		shiftdv = - ViewVSize / 2;
	} else {
		shiftdv = 0;
	}
	if ((shiftdh != 0) || (shiftdv != 0)) {
		SavedMouseH += shiftdh;
		SavedMouseV += shiftdv;
		if (! MyMoveMouse(SavedMouseH, SavedMouseV)) {
			HaveMouseMotion = falseblnr;
		}
	}
}
#endif

/* cursor state */

LOCALPROC MousePositionNotify(int NewMousePosh, int NewMousePosv)
{
	blnr ShouldHaveCursorHidden = trueblnr;

#if VarFullScreen
	if (UseFullScreen)
#endif
#if MayFullScreen
	{
		NewMousePosh -= hOffset;
		NewMousePosv -= vOffset;
	}
#endif

#if EnableMagnify
	if (UseMagnify) {
		NewMousePosh /= MyWindowScale;
		NewMousePosv /= MyWindowScale;
	}
#endif

#if VarFullScreen
	if (UseFullScreen)
#endif
#if MayFullScreen
	{
		NewMousePosh += ViewHStart;
		NewMousePosv += ViewVStart;
	}
#endif

#if EnableFSMouseMotion
	if (HaveMouseMotion) {
		MyMousePositionSetDelta(NewMousePosh - SavedMouseH,
			NewMousePosv - SavedMouseV);
		SavedMouseH = NewMousePosh;
		SavedMouseV = NewMousePosv;
	} else
#endif
	{
		if (NewMousePosh < 0) {
			NewMousePosh = 0;
			ShouldHaveCursorHidden = falseblnr;
		} else if (NewMousePosh >= vMacScreenWidth) {
			NewMousePosh = vMacScreenWidth - 1;
			ShouldHaveCursorHidden = falseblnr;
		}
		if (NewMousePosv < 0) {
			NewMousePosv = 0;
			ShouldHaveCursorHidden = falseblnr;
		} else if (NewMousePosv >= vMacScreenHeight) {
			NewMousePosv = vMacScreenHeight - 1;
			ShouldHaveCursorHidden = falseblnr;
		}

#if VarFullScreen
		if (UseFullScreen)
#endif
#if MayFullScreen
		{
			ShouldHaveCursorHidden = trueblnr;
		}
#endif

		/* if (ShouldHaveCursorHidden || CurMouseButton) */
		/*
			for a game like arkanoid, would like mouse to still
			move even when outside window in one direction
		*/
		MyMousePositionSet(NewMousePosh, NewMousePosv);
	}

	WantCursorHidden = ShouldHaveCursorHidden;
}

LOCALPROC CheckMouseState(void)
{
	/*
		incorrect while window is being dragged
		so only call when needed.
	*/
	NSPoint p;

	QZ_GetMouseLocation(&p);
	MousePositionNotify((int) p.x, (int) p.y);
}

LOCALVAR blnr gTrueBackgroundFlag = falseblnr;


LOCALVAR ui3p ScalingBuff = nullpr;

LOCALVAR ui3p CLUT_final;

#define CLUT_finalsz1 (256 * 8)

#if (0 != vMacScreenDepth) && (vMacScreenDepth < 4)

#define CLUT_finalClrSz (256 << (5 - vMacScreenDepth))

#define CLUT_finalsz ((CLUT_finalClrSz > CLUT_finalsz1) \
	? CLUT_finalClrSz : CLUT_finalsz1)

#else
#define CLUT_finalsz CLUT_finalsz1
#endif


#define ScrnMapr_DoMap UpdateBWLuminanceCopy
#define ScrnMapr_Src GetCurDrawBuff()
#define ScrnMapr_Dst ScalingBuff
#define ScrnMapr_SrcDepth 0
#define ScrnMapr_DstDepth 3
#define ScrnMapr_Map CLUT_final

#include "SCRNMAPR.h"


#if (0 != vMacScreenDepth) && (vMacScreenDepth < 4)

#define ScrnMapr_DoMap UpdateMappedColorCopy
#define ScrnMapr_Src GetCurDrawBuff()
#define ScrnMapr_Dst ScalingBuff
#define ScrnMapr_SrcDepth vMacScreenDepth
#define ScrnMapr_DstDepth 5
#define ScrnMapr_Map CLUT_final

#include "SCRNMAPR.h"

#endif

#if vMacScreenDepth >= 4

#define ScrnTrns_DoTrans UpdateTransColorCopy
#define ScrnTrns_Src GetCurDrawBuff()
#define ScrnTrns_Dst ScalingBuff
#define ScrnTrns_SrcDepth vMacScreenDepth
#define ScrnTrns_DstDepth 5
#define ScrnTrns_DstZLo 1

#include "SCRNTRNS.h"

#endif

LOCALPROC UpdateLuminanceCopy(si4b top, si4b left,
	si4b bottom, si4b right)
{
	int i;

#if 0 != vMacScreenDepth
	if (UseColorMode) {

#if vMacScreenDepth < 4

		if (! ColorTransValid) {
			int j;
			int k;
			ui5p p4;

			p4 = (ui5p)CLUT_final;
			for (i = 0; i < 256; ++i) {
				for (k = 1 << (3 - vMacScreenDepth); --k >= 0; ) {
					j = (i >> (k << vMacScreenDepth)) & (CLUT_size - 1);
					*p4++ = (((long)CLUT_reds[j] & 0xFF00) << 16)
						| (((long)CLUT_greens[j] & 0xFF00) << 8)
						| ((long)CLUT_blues[j] & 0xFF00);
				}
			}
			ColorTransValid = trueblnr;
		}

		UpdateMappedColorCopy(top, left, bottom, right);

#else
		UpdateTransColorCopy(top, left, bottom, right);
#endif

	} else
#endif
	{
		if (! ColorTransValid) {
			int k;
			ui3p p4 = (ui3p)CLUT_final;

			for (i = 0; i < 256; ++i) {
				for (k = 8; --k >= 0; ) {
					*p4++ = ((i >> k) & 0x01) - 1;
				}
			}
			ColorTransValid = trueblnr;
		}

		UpdateBWLuminanceCopy(top, left, bottom, right);
	}
}

LOCALPROC MyDrawWithOpenGL(ui4r top, ui4r left, ui4r bottom, ui4r right)
{
	if (nil == MyNSOpnGLCntxt) {
		/* oops */
	} else {
		si4b top2;
		si4b left2;

#if VarFullScreen
		if (UseFullScreen)
#endif
#if MayFullScreen
		{
			if (top < ViewVStart) {
				top = ViewVStart;
			}
			if (left < ViewHStart) {
				left = ViewHStart;
			}
			if (bottom > ViewVStart + ViewVSize) {
				bottom = ViewVStart + ViewVSize;
			}
			if (right > ViewHStart + ViewHSize) {
				right = ViewHStart + ViewHSize;
			}

			if ((top >= bottom) || (left >= right)) {
				goto label_exit;
			}
		}
#endif

		top2 = top;
		left2 = left;

#if VarFullScreen
		if (UseFullScreen)
#endif
#if MayFullScreen
		{
			left2 -= ViewHStart;
			top2 -= ViewVStart;
		}
#endif

#if EnableMagnify
		if (UseMagnify) {
			top2 *= MyWindowScale;
			left2 *= MyWindowScale;
		}
#endif

		[MyNSOpnGLCntxt makeCurrentContext];

		UpdateLuminanceCopy(top, left, bottom, right);
		glRasterPos2i(GLhOffset + left2, GLvOffset - top2);
#if 0 != vMacScreenDepth
		if (UseColorMode) {
			glDrawPixels(right - left,
				bottom - top,
				GL_RGBA,
				GL_UNSIGNED_INT_8_8_8_8,
				ScalingBuff + (left + top * vMacScreenWidth) * 4
				);
		} else
#endif
		{
			glDrawPixels(right - left,
				bottom - top,
				GL_LUMINANCE,
				GL_UNSIGNED_BYTE,
				ScalingBuff + (left + top * vMacScreenWidth)
				);
		}

#if 0 /* a very quick and dirty check of where drawing */
		glDrawPixels(right - left,
			1,
			GL_RED,
			GL_UNSIGNED_BYTE,
			ScalingBuff + (left + top * vMacScreenWidth)
			);

		glDrawPixels(1,
			bottom - top,
			GL_RED,
			GL_UNSIGNED_BYTE,
			ScalingBuff + (left + top * vMacScreenWidth)
			);
#endif

		glFlush();
	}

#if MayFullScreen
label_exit:
	;
#endif
}

#if UseCGContextDrawImage
LOCALPROC SDL_UpdateRect(si5b x, si5b y, ui5b w, ui5b h)
{
	if ([MyWindow isMiniaturized]) {

		/* Do nothing if miniaturized */

	} else {
		NSGraphicsContext *ctx = [NSGraphicsContext currentContext];
		if (ctx != MyNSgfxContext) {
			/* uhoh, you might be rendering from another thread... */
			[NSGraphicsContext
				setCurrentContext: MyNSgfxContext];
			ctx = MyNSgfxContext;
		}
		CGContextRef cgc = (CGContextRef) [ctx graphicsPort];
		CGContextFlush(MyCGcontext);
		CGImageRef image = CGBitmapContextCreateImage(
			MyCGcontext);
		CGRect rectangle = CGRectMake(0, 0,
			[MyNSview frame].size.width,
			[MyNSview frame].size.height);

		CGContextDrawImage(cgc, rectangle, image);
		CGImageRelease(image);
		CGContextFlush(cgc);
	}
}
#endif

/* --- time, date, location --- */

#define dbglog_TimeStuff (0 && dbglog_HAVE)

LOCALVAR ui5b TrueEmulatedTime = 0;

LOCALVAR NSTimeInterval LatestTime;
LOCALVAR NSTimeInterval NextTickChangeTime;

#define MyTickDuration (1.0 / 60.14742)

LOCALVAR ui5b NewMacDateInSeconds;

LOCALVAR blnr EmulationWasInterrupted = falseblnr;

LOCALPROC UpdateTrueEmulatedTime(void)
{
	NSTimeInterval TimeDiff;

	LatestTime = [NSDate timeIntervalSinceReferenceDate];
	TimeDiff = LatestTime - NextTickChangeTime;

	if (TimeDiff >= 0.0) {
		if (TimeDiff > 16 * MyTickDuration) {
			/* emulation interrupted, forget it */
			++TrueEmulatedTime;
			NextTickChangeTime = LatestTime + MyTickDuration;

			EmulationWasInterrupted = trueblnr;
#if dbglog_TimeStuff
			dbglog_writelnNum("emulation interrupted",
				TrueEmulatedTime);
#endif
		} else {
			do {
#if 0 && dbglog_TimeStuff
				dbglog_writeln("got next tick");
#endif
				++TrueEmulatedTime;
				TimeDiff -= MyTickDuration;
				NextTickChangeTime += MyTickDuration;
			} while (TimeDiff >= 0.0);
		}
	} else if (TimeDiff < (-16 * MyTickDuration)) {
		/* clock set back, reset */
#if dbglog_TimeStuff
		dbglog_writeln("clock set back");
#endif

		NextTickChangeTime = LatestTime + MyTickDuration;
	}
}


LOCALVAR ui5b MyDateDelta;

LOCALFUNC blnr CheckDateTime(void)
{
	NewMacDateInSeconds = ((ui5b)LatestTime) + MyDateDelta;
	if (CurMacDateInSeconds != NewMacDateInSeconds) {
		CurMacDateInSeconds = NewMacDateInSeconds;
		return trueblnr;
	} else {
		return falseblnr;
	}
}

LOCALPROC StartUpTimeAdjust(void)
{
	LatestTime = [NSDate timeIntervalSinceReferenceDate];
	NextTickChangeTime = LatestTime;
}

LOCALFUNC blnr InitLocationDat(void)
{
	NSTimeZone *MyZone = [NSTimeZone localTimeZone];
	ui5b TzOffSet = (ui5b)[MyZone secondsFromGMT];
#if AutoTimeZone
	BOOL isdst = [MyZone isDaylightSavingTime];
#endif

	MyDateDelta = TzOffSet - 1233815296;
	LatestTime = [NSDate timeIntervalSinceReferenceDate];
	NewMacDateInSeconds = ((ui5b)LatestTime) + MyDateDelta;
	CurMacDateInSeconds = NewMacDateInSeconds;
#if AutoTimeZone
	CurMacDelta = (TzOffSet & 0x00FFFFFF)
		| ((isdst ? 0x80 : 0) << 24);
#endif

	return trueblnr;
}

/* --- sound --- */

#if MySoundEnabled

#define kLn2SoundBuffers 4 /* kSoundBuffers must be a power of two */
#define kSoundBuffers (1 << kLn2SoundBuffers)
#define kSoundBuffMask (kSoundBuffers - 1)

#define DesiredMinFilledSoundBuffs 3
	/*
		if too big then sound lags behind emulation.
		if too small then sound will have pauses.
	*/

#define kLnOneBuffLen 9
#define kLnAllBuffLen (kLn2SoundBuffers + kLnOneBuffLen)
#define kOneBuffLen (1UL << kLnOneBuffLen)
#define kAllBuffLen (1UL << kLnAllBuffLen)
#define kLnOneBuffSz (kLnOneBuffLen + kLn2SoundSampSz - 3)
#define kLnAllBuffSz (kLnAllBuffLen + kLn2SoundSampSz - 3)
#define kOneBuffSz (1UL << kLnOneBuffSz)
#define kAllBuffSz (1UL << kLnAllBuffSz)
#define kOneBuffMask (kOneBuffLen - 1)
#define kAllBuffMask (kAllBuffLen - 1)
#define dbhBufferSize (kAllBuffSz + kOneBuffSz)

#define dbglog_SoundStuff (0 && dbglog_HAVE)
#define dbglog_SoundBuffStats (0 && dbglog_HAVE)

LOCALVAR tpSoundSamp TheSoundBuffer = nullpr;
static volatile ui4b ThePlayOffset;
static volatile ui4b TheFillOffset;
static volatile ui4b MinFilledSoundBuffs;
#if dbglog_SoundBuffStats
LOCALVAR ui4b MaxFilledSoundBuffs;
#endif
LOCALVAR ui4b TheWriteOffset;

LOCALPROC MySound_Start0(void)
{
	/* Reset variables */
	ThePlayOffset = 0;
	TheFillOffset = 0;
	TheWriteOffset = 0;
	MinFilledSoundBuffs = kSoundBuffers + 1;
#if dbglog_SoundBuffStats
	MaxFilledSoundBuffs = 0;
#endif
}

GLOBALOSGLUFUNC tpSoundSamp MySound_BeginWrite(ui4r n, ui4r *actL)
{
	ui4b ToFillLen = kAllBuffLen - (TheWriteOffset - ThePlayOffset);
	ui4b WriteBuffContig =
		kOneBuffLen - (TheWriteOffset & kOneBuffMask);

	if (WriteBuffContig < n) {
		n = WriteBuffContig;
	}
	if (ToFillLen < n) {
		/* overwrite previous buffer */
#if dbglog_SoundStuff
		dbglog_writeln("sound buffer over flow");
#endif
		TheWriteOffset -= kOneBuffLen;
	}

	*actL = n;
	return TheSoundBuffer + (TheWriteOffset & kAllBuffMask);
}

#if 4 == kLn2SoundSampSz
LOCALPROC ConvertSoundBlockToNative(tpSoundSamp p)
{
	int i;

	for (i = kOneBuffLen; --i >= 0; ) {
		*p++ -= 0x8000;
	}
}
#else
#define ConvertSoundBlockToNative(p)
#endif

LOCALPROC MySound_WroteABlock(void)
{
#if (4 == kLn2SoundSampSz)
	ui4b PrevWriteOffset = TheWriteOffset - kOneBuffLen;
	tpSoundSamp p = TheSoundBuffer + (PrevWriteOffset & kAllBuffMask);
#endif

#if dbglog_SoundStuff
	dbglog_writeln("enter MySound_WroteABlock");
#endif

	ConvertSoundBlockToNative(p);

	TheFillOffset = TheWriteOffset;

#if dbglog_SoundBuffStats
	{
		ui4b ToPlayLen = TheFillOffset
			- ThePlayOffset;
		ui4b ToPlayBuffs = ToPlayLen >> kLnOneBuffLen;

		if (ToPlayBuffs > MaxFilledSoundBuffs) {
			MaxFilledSoundBuffs = ToPlayBuffs;
		}
	}
#endif
}

LOCALFUNC blnr MySound_EndWrite0(ui4r actL)
{
	blnr v;

	TheWriteOffset += actL;

	if (0 != (TheWriteOffset & kOneBuffMask)) {
		v = falseblnr;
	} else {
		/* just finished a block */

		MySound_WroteABlock();

		v = trueblnr;
	}

	return v;
}

LOCALPROC MySound_SecondNotify0(void)
{
	if (MinFilledSoundBuffs <= kSoundBuffers) {
		if (MinFilledSoundBuffs > DesiredMinFilledSoundBuffs) {
#if dbglog_SoundStuff
			dbglog_writeln("MinFilledSoundBuffs too high");
#endif
			NextTickChangeTime += MyTickDuration;
		} else if (MinFilledSoundBuffs < DesiredMinFilledSoundBuffs) {
#if dbglog_SoundStuff
			dbglog_writeln("MinFilledSoundBuffs too low");
#endif
			++TrueEmulatedTime;
		}
#if dbglog_SoundBuffStats
		dbglog_writelnNum("MinFilledSoundBuffs",
			MinFilledSoundBuffs);
		dbglog_writelnNum("MaxFilledSoundBuffs",
			MaxFilledSoundBuffs);
		MaxFilledSoundBuffs = 0;
#endif
		MinFilledSoundBuffs = kSoundBuffers + 1;
	}
}

typedef ui4r trSoundTemp;

#define kCenterTempSound 0x8000

#define AudioStepVal 0x0040

#if 3 == kLn2SoundSampSz
#define ConvertTempSoundSampleFromNative(v) ((v) << 8)
#elif 4 == kLn2SoundSampSz
#define ConvertTempSoundSampleFromNative(v) ((v) + kCenterSound)
#else
#error "unsupported kLn2SoundSampSz"
#endif

#if 3 == kLn2SoundSampSz
#define ConvertTempSoundSampleToNative(v) ((v) >> 8)
#elif 4 == kLn2SoundSampSz
#define ConvertTempSoundSampleToNative(v) ((v) - kCenterSound)
#else
#error "unsupported kLn2SoundSampSz"
#endif

LOCALPROC SoundRampTo(trSoundTemp *last_val, trSoundTemp dst_val,
	tpSoundSamp *stream, int *len)
{
	trSoundTemp diff;
	tpSoundSamp p = *stream;
	int n = *len;
	trSoundTemp v1 = *last_val;

	while ((v1 != dst_val) && (0 != n)) {
		if (v1 > dst_val) {
			diff = v1 - dst_val;
			if (diff > AudioStepVal) {
				v1 -= AudioStepVal;
			} else {
				v1 = dst_val;
			}
		} else {
			diff = dst_val - v1;
			if (diff > AudioStepVal) {
				v1 += AudioStepVal;
			} else {
				v1 = dst_val;
			}
		}

		--n;
		*p++ = ConvertTempSoundSampleToNative(v1);
	}

	*stream = p;
	*len = n;
	*last_val = v1;
}

struct MySoundR {
	tpSoundSamp fTheSoundBuffer;
	volatile ui4b (*fPlayOffset);
	volatile ui4b (*fFillOffset);
	volatile ui4b (*fMinFilledSoundBuffs);

	volatile trSoundTemp lastv;

	blnr enabled;
	blnr wantplaying;
	blnr HaveStartedPlaying;

	AudioUnit outputAudioUnit;
};
typedef struct MySoundR MySoundR;

LOCALPROC my_audio_callback(void *udata, void *stream, int len)
{
	ui4b ToPlayLen;
	ui4b FilledSoundBuffs;
	int i;
	MySoundR *datp = (MySoundR *)udata;
	tpSoundSamp CurSoundBuffer = datp->fTheSoundBuffer;
	ui4b CurPlayOffset = *datp->fPlayOffset;
	trSoundTemp v0 = datp->lastv;
	trSoundTemp v1 = v0;
	tpSoundSamp dst = (tpSoundSamp)stream;

#if kLn2SoundSampSz > 3
	len >>= (kLn2SoundSampSz - 3);
#endif

#if dbglog_SoundStuff
	dbglog_writeln("Enter my_audio_callback");
	dbglog_writelnNum("len", len);
#endif

label_retry:
	ToPlayLen = *datp->fFillOffset - CurPlayOffset;
	FilledSoundBuffs = ToPlayLen >> kLnOneBuffLen;

	if (! datp->wantplaying) {
#if dbglog_SoundStuff
		dbglog_writeln("playing end transistion");
#endif

		SoundRampTo(&v1, kCenterTempSound, &dst, &len);

		ToPlayLen = 0;
	} else if (! datp->HaveStartedPlaying) {
#if dbglog_SoundStuff
		dbglog_writeln("playing start block");
#endif

		if ((ToPlayLen >> kLnOneBuffLen) < 8) {
			ToPlayLen = 0;
		} else {
			tpSoundSamp p = datp->fTheSoundBuffer
				+ (CurPlayOffset & kAllBuffMask);
			trSoundTemp v2 = ConvertTempSoundSampleFromNative(*p);

#if dbglog_SoundStuff
			dbglog_writeln("have enough samples to start");
#endif

			SoundRampTo(&v1, v2, &dst, &len);

			if (v1 == v2) {
#if dbglog_SoundStuff
				dbglog_writeln("finished start transition");
#endif

				datp->HaveStartedPlaying = trueblnr;
			}
		}
	}

	if (0 == len) {
		/* done */

		if (FilledSoundBuffs < *datp->fMinFilledSoundBuffs) {
			*datp->fMinFilledSoundBuffs = FilledSoundBuffs;
		}
	} else if (0 == ToPlayLen) {

#if dbglog_SoundStuff
		dbglog_writeln("under run");
#endif

		for (i = 0; i < len; ++i) {
			*dst++ = ConvertTempSoundSampleToNative(v1);
		}
		*datp->fMinFilledSoundBuffs = 0;
	} else {
		ui4b PlayBuffContig = kAllBuffLen
			- (CurPlayOffset & kAllBuffMask);
		tpSoundSamp p = CurSoundBuffer
			+ (CurPlayOffset & kAllBuffMask);

		if (ToPlayLen > PlayBuffContig) {
			ToPlayLen = PlayBuffContig;
		}
		if (ToPlayLen > len) {
			ToPlayLen = len;
		}

		for (i = 0; i < ToPlayLen; ++i) {
			*dst++ = *p++;
		}
		v1 = ConvertTempSoundSampleFromNative(p[-1]);

		CurPlayOffset += ToPlayLen;
		len -= ToPlayLen;

		*datp->fPlayOffset = CurPlayOffset;

		goto label_retry;
	}

	datp->lastv = v1;
}

LOCALFUNC OSStatus audioCallback(
	void                       *inRefCon,
	AudioUnitRenderActionFlags *ioActionFlags,
	const AudioTimeStamp       *inTimeStamp,
	UInt32                     inBusNumber,
	UInt32                     inNumberFrames,
	AudioBufferList            *ioData)
{
	AudioBuffer *abuf;
	UInt32 i;
	UInt32 n = ioData->mNumberBuffers;

#if dbglog_SoundStuff
	dbglog_writeln("Enter audioCallback");
	dbglog_writelnNum("mNumberBuffers", n);
#endif

	for (i = 0; i < n; i++) {
		abuf = &ioData->mBuffers[i];
		my_audio_callback(inRefCon,
			abuf->mData, abuf->mDataByteSize);
	}

	return 0;
}

LOCALVAR MySoundR cur_audio;

LOCALPROC ZapAudioVars(void)
{
	memset(&cur_audio, 0, sizeof(MySoundR));
}

LOCALPROC MySound_Stop(void)
{
#if dbglog_SoundStuff
	dbglog_writeln("enter MySound_Stop");
#endif

	if (cur_audio.wantplaying) {
		OSStatus result;
		ui4r retry_limit = 50; /* half of a second */

		cur_audio.wantplaying = falseblnr;

label_retry:
		if (kCenterTempSound == cur_audio.lastv) {
#if dbglog_SoundStuff
			dbglog_writeln("reached kCenterTempSound");
#endif

			/* done */
		} else if (0 == --retry_limit) {
#if dbglog_SoundStuff
			dbglog_writeln("retry limit reached");
#endif
			/* done */
		} else
		{
			/*
				give time back, particularly important
				if got here on a suspend event.
			*/
			struct timespec rqt;
			struct timespec rmt;

#if dbglog_SoundStuff
			dbglog_writeln("busy, so sleep");
#endif

			rqt.tv_sec = 0;
			rqt.tv_nsec = 10000000;
			(void) nanosleep(&rqt, &rmt);

			goto label_retry;
		}

		if (noErr != (result = AudioOutputUnitStop(
			cur_audio.outputAudioUnit)))
		{
#if dbglog_HAVE
			dbglog_writeln("AudioOutputUnitStop fails");
#endif
		}
	}

#if dbglog_SoundStuff
	dbglog_writeln("leave MySound_Stop");
#endif
}

LOCALPROC MySound_Start(void)
{
	OSStatus result;

	if ((! cur_audio.wantplaying) && cur_audio.enabled) {
#if dbglog_SoundStuff
		dbglog_writeln("enter MySound_Start");
#endif

		MySound_Start0();
		cur_audio.lastv = kCenterTempSound;
		cur_audio.HaveStartedPlaying = falseblnr;
		cur_audio.wantplaying = trueblnr;

		if (noErr != (result = AudioOutputUnitStart(
			cur_audio.outputAudioUnit)))
		{
#if dbglog_HAVE
			dbglog_writeln("AudioOutputUnitStart fails");
#endif
			cur_audio.wantplaying = falseblnr;
		}

#if dbglog_SoundStuff
		dbglog_writeln("leave MySound_Start");
#endif
	}
}

LOCALPROC MySound_UnInit(void)
{
	if (cur_audio.enabled) {
		OSStatus result;
		struct AURenderCallbackStruct callback;

		cur_audio.enabled = falseblnr;

		/* Remove the input callback */
		callback.inputProc = 0;
		callback.inputProcRefCon = 0;

		if (noErr != (result = AudioUnitSetProperty(
			cur_audio.outputAudioUnit,
			kAudioUnitProperty_SetRenderCallback,
			kAudioUnitScope_Input,
			0,
			&callback,
			sizeof(callback))))
		{
#if dbglog_HAVE
			dbglog_writeln("AudioUnitSetProperty fails"
				"(kAudioUnitProperty_SetRenderCallback)");
#endif
		}

		if (noErr != (result = CloseComponent(
			cur_audio.outputAudioUnit)))
		{
#if dbglog_HAVE
			dbglog_writeln("CloseComponent fails in MySound_UnInit");
#endif
		}
	}
}

#define SOUND_SAMPLERATE 22255 /* = round(7833600 * 2 / 704) */

LOCALFUNC blnr MySound_Init(void)
{
	OSStatus result = noErr;
	Component comp;
	ComponentDescription desc;
	struct AURenderCallbackStruct callback;
	AudioStreamBasicDescription requestedDesc;

	cur_audio.fTheSoundBuffer = TheSoundBuffer;
	cur_audio.fPlayOffset = &ThePlayOffset;
	cur_audio.fFillOffset = &TheFillOffset;
	cur_audio.fMinFilledSoundBuffs = &MinFilledSoundBuffs;
	cur_audio.wantplaying = falseblnr;

	desc.componentType = kAudioUnitType_Output;
	desc.componentSubType = kAudioUnitSubType_DefaultOutput;
	desc.componentManufacturer = kAudioUnitManufacturer_Apple;
	desc.componentFlags = 0;
	desc.componentFlagsMask = 0;


	requestedDesc.mFormatID = kAudioFormatLinearPCM;
	requestedDesc.mFormatFlags = kLinearPCMFormatFlagIsPacked
#if 3 != kLn2SoundSampSz
		| kLinearPCMFormatFlagIsSignedInteger
#endif
		;
	requestedDesc.mChannelsPerFrame = 1;
	requestedDesc.mSampleRate = SOUND_SAMPLERATE;

	requestedDesc.mBitsPerChannel = (1 << kLn2SoundSampSz);
#if 0
	requestedDesc.mFormatFlags |= kLinearPCMFormatFlagIsSignedInteger;
#endif
#if 0
	requestedDesc.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;
#endif

	requestedDesc.mFramesPerPacket = 1;
	requestedDesc.mBytesPerFrame = (requestedDesc.mBitsPerChannel
		* requestedDesc.mChannelsPerFrame) >> 3;
	requestedDesc.mBytesPerPacket = requestedDesc.mBytesPerFrame
		* requestedDesc.mFramesPerPacket;


	callback.inputProc = audioCallback;
	callback.inputProcRefCon = &cur_audio;

	if (NULL == (comp = FindNextComponent(NULL, &desc)))
	{
#if dbglog_HAVE
		dbglog_writeln("Failed to start CoreAudio: "
			"FindNextComponent returned NULL");
#endif
	} else

	if (noErr != (result = OpenAComponent(
		comp, &cur_audio.outputAudioUnit)))
	{
#if dbglog_HAVE
		dbglog_writeln("Failed to start CoreAudio: OpenAComponent");
#endif
	} else

	if (noErr != (result = AudioUnitInitialize(
		cur_audio.outputAudioUnit)))
	{
#if dbglog_HAVE
		dbglog_writeln(
			"Failed to start CoreAudio: AudioUnitInitialize");
#endif
	} else

	if (noErr != (result = AudioUnitSetProperty(
		cur_audio.outputAudioUnit,
		kAudioUnitProperty_StreamFormat,
		kAudioUnitScope_Input,
		0,
		&requestedDesc,
		sizeof(requestedDesc))))
	{
#if dbglog_HAVE
		dbglog_writeln("Failed to start CoreAudio: "
			"AudioUnitSetProperty(kAudioUnitProperty_StreamFormat)");
#endif
	} else

	if (noErr != (result = AudioUnitSetProperty(
		cur_audio.outputAudioUnit,
		kAudioUnitProperty_SetRenderCallback,
		kAudioUnitScope_Input,
		0,
		&callback,
		sizeof(callback))))
	{
#if dbglog_HAVE
		dbglog_writeln("Failed to start CoreAudio: "
			"AudioUnitSetProperty(kAudioUnitProperty_SetInputCallback)"
			);
#endif
	} else

	{
		cur_audio.enabled = trueblnr;

		MySound_Start();
			/*
				This should be taken care of by LeaveSpeedStopped,
				but since takes a while to get going properly,
				start early.
			*/
	}

	return trueblnr; /* keep going, even if no sound */
}

GLOBALOSGLUPROC MySound_EndWrite(ui4r actL)
{
	if (MySound_EndWrite0(actL)) {
	}
}

LOCALPROC MySound_SecondNotify(void)
{
	if (cur_audio.enabled) {
		MySound_SecondNotify0();
	}
}

#endif

LOCALPROC FinishSubMenu(NSMenu *theMenu, NSMenu *parentMenu,
	NSString *sTitle)
{
	NSMenuItem *menuItem = [[NSMenuItem alloc]
		initWithTitle: sTitle
		action: nil
		keyEquivalent: @""];

	[menuItem setSubmenu: theMenu];
	[parentMenu addItem: menuItem];
	[menuItem release];
}

LOCALFUNC NSMenu *setApplicationMenu(NSMenu *mainMenu)
{
	NSMenuItem *menuItem;
	NSString *sAppName = NSStringCreateFromSubstCStr("^p");
		/* doesn't matter though, OS X replaces this */
	NSString *sAbout =
		NSStringCreateFromSubstCStr(kStrMenuItemAbout);
	NSString *sHide =
		NSStringCreateFromSubstCStr(kStrAppMenuItemHide);
	NSString *sHideOthers =
		NSStringCreateFromSubstCStr(kStrAppMenuItemHideOthers);
	NSString *sShowAll =
		NSStringCreateFromSubstCStr(kStrAppMenuItemShowAll);
	NSString *sQuit =
		NSStringCreateFromSubstCStr(kStrAppMenuItemQuit);

	NSMenu *appleMenu = [[NSMenu alloc] initWithTitle: sAppName];

	/* Add menu items */
	menuItem = [appleMenu addItemWithTitle: sAbout
		action: @selector(performApplicationAbout:)
		keyEquivalent: @"a"];
	[menuItem setKeyEquivalentModifierMask: NSControlKeyMask];

	[appleMenu addItem:[NSMenuItem separatorItem]];

	[appleMenu addItemWithTitle: sHide
		action: @selector(hide:) keyEquivalent: @""];

	[appleMenu
		addItemWithTitle: sHideOthers
		action: @selector(hideOtherApplications:)
		keyEquivalent: @""];

	[appleMenu addItemWithTitle: sShowAll
		action: @selector(unhideAllApplications:)
		keyEquivalent: @""];

	[appleMenu addItem: [NSMenuItem separatorItem]];

	menuItem = [appleMenu addItemWithTitle: sQuit
		action: @selector(terminate:) keyEquivalent: @"q"];
	[menuItem setKeyEquivalentModifierMask: NSControlKeyMask];

	FinishSubMenu(appleMenu, mainMenu, sAppName);

	[appleMenu release];

	return appleMenu;
}

/* Create File menu */
LOCALPROC setupFileMenu(NSMenu *mainMenu)
{
	NSMenu *fileMenu;
	NSMenuItem *menuItem;
	NSString *sFile =
		NSStringCreateFromSubstCStr(kStrMenuFile);
	NSString *sOpen =
		NSStringCreateFromSubstCStr(kStrMenuItemOpen ";ll");

	fileMenu = [[NSMenu alloc] initWithTitle: sFile];

	menuItem = [fileMenu
		addItemWithTitle: sOpen
		action: @selector(performFileOpen:)
		keyEquivalent: @"o"];
	[menuItem setKeyEquivalentModifierMask: NSControlKeyMask];

	FinishSubMenu(fileMenu, mainMenu, sFile);

	[fileMenu release];
}

/* Create Special menu */
LOCALPROC setupSpecialMenu(NSMenu *mainMenu)
{
	NSMenu *specialMenu;
	NSString *sSpecial =
		NSStringCreateFromSubstCStr(kStrMenuSpecial);
	NSString *sMore =
		NSStringCreateFromSubstCStr(kStrMenuItemMore ";ll");

	specialMenu = [[NSMenu alloc] initWithTitle: sSpecial];

	[specialMenu
		addItemWithTitle: sMore
		action: @selector(performSpecialMoreCommands:)
		keyEquivalent: @""];

	FinishSubMenu(specialMenu, mainMenu, sSpecial);

	[specialMenu release];
}

LOCALPROC MyMenuSetup(void)
{
	NSMenu *mainMenu = [[NSMenu alloc] init];
	NSMenu *appleMenu = setApplicationMenu(mainMenu);

	setupFileMenu(mainMenu);
	setupSpecialMenu(mainMenu);

	[NSApp setMainMenu: mainMenu];

	/*
		Tell the application object that this is now
		the application menu, if this unsupported
		call actually exists. Doesn't seem to
		be needed anyway, at least in OS X 10.7
	*/
	if([NSApp respondsToSelector:@selector(setAppleMenu:)]) {
		/* [NSApp setAppleMenu: appleMenu]; */
		[NSApp performSelector: @selector(setAppleMenu:)
			withObject:appleMenu];
	}

	[mainMenu release];
}



/* --- video out --- */


#if ! UseCGContextDrawImage
LOCALPROC HaveChangedScreenBuff(ui4r top, ui4r left,
	ui4r bottom, ui4r right)
{
	if ([MyNSview lockFocusIfCanDraw]) {
		MyDrawWithOpenGL(top, left, bottom, right);
		[MyNSview unlockFocus];
	}
}
#else
LOCALPROC HaveChangedScreenBuff(ui4r top, ui4r left,
	ui4r bottom, ui4r right)
{
	int i;
	int j;
	ui3b *the_data = (ui3b *)GetCurDrawBuff();
	ui3b *p;
	ui5b color;
	ui5b black_color = 0;
		/* SDL_MapRGB(cur_video.format, 0, 0, 0) */
	ui5b white_color = 0;
		/* SDL_MapRGB(cur_video.format, 255, 255, 255) */

	switch (MyBytesPerPixel) {
		case 2: /* (1)-5-5-5 RGB */
#if 0
			rmask = 0x7C00;
			gmask = 0x03E0;
			bmask = 0x001F;
#endif
			break;
		case 4:
#if LittleEndianUnaligned
#if 0
			rmask = 0x0000FF00;
			gmask = 0x00FF0000;
			bmask = 0xFF000000;
#endif
			black_color = 0x000000FF;
			white_color = 0xFFFFFFFF;
#else
#if 0
			rmask = 0x00FF0000;
			gmask = 0x0000FF00;
			bmask = 0x000000FF;
#endif
			black_color = 0xFF000000;
			white_color = 0xFFFFFFFF;
#endif
			break;
	}

#if EnableMagnify
	if (UseMagnify) {
		for (i = top * MyWindowScale; i < bottom * MyWindowScale; ++i) {
			for (j = left * MyWindowScale;
				j < right * MyWindowScale; ++j)
			{
				p = the_data + (((i / MyWindowScale) * vMacScreenWidth
					+ (j / MyWindowScale)) / 8);
				if (0 != (*p & (1 << ((~ (j / MyWindowScale)) & 0x7))))
				{
					color = black_color;
				} else {
					color = white_color;
				}
				switch (MyBytesPerPixel) {
					case 2: { /* Probably 15-bpp or 16-bpp */
						ui4b *bufp;

						bufp = (ui4b *)MyPixels
							+ i * MyPitch / 2 + j;
						*bufp = color;
					}
					break;

					case 4: { /* Probably 32-bpp */
						ui5b *bufp;

						bufp = (ui5b *)MyPixels
							+ i * MyPitch / 4 + j;
						*bufp = color;
					}
					break;
				}
			}
		}
	} else
#endif
	{
		for (i = top; i < bottom; ++i) {
			for (j = left; j < right; ++j) {
				p = the_data + ((i * vMacScreenWidth + j) / 8);
				if (0 != (*p & (1 << ((~ j) & 0x7)))) {
					color = black_color;
				} else {
					color = white_color;
				}
				switch (MyBytesPerPixel) {
					case 2: { /* Probably 15-bpp or 16-bpp */
						ui4b *bufp;

						bufp = (ui4b *)MyPixels
							+ i * MyPitch / 2 + j;
						*bufp = color;
					}
					break;
					case 4: { /* Probably 32-bpp */
						ui5b *bufp;

						bufp = (ui5b *)MyPixels
							+ i * MyPitch / 4 + j;
						*bufp = color;
					}
					break;
				}
			}
		}
	}

#if EnableMagnify
	if (UseMagnify) {
		SDL_UpdateRect(left * MyWindowScale,
			top * MyWindowScale,
			(right - left) * MyWindowScale,
			(bottom - top) * MyWindowScale);
	} else
#endif
	{
		SDL_UpdateRect(left, top,
			right - left, bottom - top);
	}
}
#endif

LOCALPROC MyDrawChangesAndClear(void)
{
	if (ScreenChangedBottom > ScreenChangedTop) {
		HaveChangedScreenBuff(ScreenChangedTop, ScreenChangedLeft,
			ScreenChangedBottom, ScreenChangedRight);
		ScreenClearChanges();
	}
}

GLOBALOSGLUPROC DoneWithDrawingForTick(void)
{
#if EnableFSMouseMotion
	if (HaveMouseMotion) {
		AutoScrollScreen();
	}
#endif
	MyDrawChangesAndClear();
}

/* --- keyboard input --- */

LOCALPROC DisableKeyRepeat(void)
{
}

LOCALPROC RestoreKeyRepeat(void)
{
}

LOCALPROC ReconnectKeyCodes3(void)
{
}

LOCALPROC DisconnectKeyCodes3(void)
{
	DisconnectKeyCodes2();
	MyMouseButtonSet(falseblnr);
}

/* --- basic dialogs --- */

LOCALPROC CheckSavedMacMsg(void)
{
	/* called only on quit, if error saved but not yet reported */

	if (nullpr != SavedBriefMsg) {
		NSString *briefMsg0 =
			NSStringCreateFromSubstCStr(SavedBriefMsg);
		NSString *longMsg0 =
			NSStringCreateFromSubstCStr(SavedLongMsg);
		NSString *quitMsg0 =
			NSStringCreateFromSubstCStr(kStrCmdQuit);

		(void) NSRunAlertPanel(briefMsg0, @"%@", quitMsg0, nil, nil,
			longMsg0);

		SavedBriefMsg = nullpr;
	}
}

/* --- hide/show menubar --- */

enum {
	MyNSApplicationPresentationDefault                    = 0,
	MyNSApplicationPresentationAutoHideDock               = (1 <<  0),
	MyNSApplicationPresentationHideDock                   = (1 <<  1),
	MyNSApplicationPresentationAutoHideMenuBar            = (1 <<  2),
	MyNSApplicationPresentationHideMenuBar                = (1 <<  3),
	MyNSApplicationPresentationDisableAppleMenu           = (1 <<  4),
	MyNSApplicationPresentationDisableProcessSwitching    = (1 <<  5),
	MyNSApplicationPresentationDisableForceQuit           = (1 <<  6),
	MyNSApplicationPresentationDisableSessionTermination  = (1 <<  7),
	MyNSApplicationPresentationDisableHideApplication     = (1 <<  8),
	MyNSApplicationPresentationDisableMenuBarTransparency = (1 <<  9),
	MyNSApplicationPresentationFullScreen                 = (1 << 10),
	MyNSApplicationPresentationAutoHideToolbar            = (1 << 11)
};
typedef NSUInteger MyNSApplicationPresentationOptions;

@interface MyNSApplication : NSObject
- (void)setPresentationOptions:
	(MyNSApplicationPresentationOptions)newOptions;
@end


#if MayFullScreen
LOCALPROC My_HideMenuBar(void)
{
	if ([NSApp respondsToSelector:@selector(setPresentationOptions:)]) {
		[((MyNSApplication *)NSApp) setPresentationOptions:
			MyNSApplicationPresentationHideDock
			| MyNSApplicationPresentationHideMenuBar
#if GrabKeysFullScreen
			| MyNSApplicationPresentationDisableProcessSwitching
#if GrabKeysMaxFullScreen /* dangerous !! */
			| MyNSApplicationPresentationDisableForceQuit
			| MyNSApplicationPresentationDisableSessionTermination
#endif
#endif
			];
	} else
	if (HaveMySetSystemUIMode()) {
		(void) MySetSystemUIMode(MykUIModeAllHidden,
			MykUIOptionDisableAppleMenu
#if GrabKeysFullScreen
			| MykUIOptionDisableProcessSwitch
#if GrabKeysMaxFullScreen /* dangerous !! */
			| MykUIOptionDisableForceQuit
			| MykUIOptionDisableSessionTerminate
#endif
#endif
			);
	} else
	{
	}
}
#endif

#if MayFullScreen
LOCALPROC My_ShowMenuBar(void)
{
	if ([NSApp respondsToSelector:@selector(setPresentationOptions:)]) {
		[((MyNSApplication *)NSApp) setPresentationOptions:
			MyNSApplicationPresentationDefault];
	} else
	if (HaveMySetSystemUIMode()) {
		(void) MySetSystemUIMode(MykUIModeNormal,
			0);
	} else
	{
	}
}
#endif

/* --- event handling for main window --- */

LOCALPROC MyBeginDialog(void)
{
	DisconnectKeyCodes3();
	ForceShowCursor();
}

LOCALPROC MyEndDialog(void)
{
	[MyWindow makeKeyWindow];
	EmulationWasInterrupted = trueblnr;
}

LOCALPROC InsertADisk0(void)
{
	NSOpenPanel *panel = [NSOpenPanel openPanel];

	[panel setAllowsMultipleSelection: YES];

	MyBeginDialog();

	if (NSOKButton == [panel runModal]) {
		int i;
		NSArray *a = [panel URLs];
		int n = [a count];

		for (i = 0; i < n; ++i) {
			NSURL *fileURL = [a objectAtIndex: i];
			NSString* filePath = [fileURL path];
			(void) Sony_Insert1a(filePath);
		}
	}

	MyEndDialog();
}

/* --- main window creation and disposal --- */

LOCALFUNC blnr Screen_Init(void)
{
#if 0
	if (noErr != Gestalt(gestaltSystemVersion,
		&cur_video.system_version))
	{
		cur_video.system_version = 0;
	}
#endif

#if 0
#define MyCGMainDisplayID CGMainDisplayID
	CGDirectDisplayID CurMainDisplayID = MyCGMainDisplayID();

	cur_video.width = (ui5b) CGDisplayPixelsWide(CurMainDisplayID);
	cur_video.height = (ui5b) CGDisplayPixelsHigh(CurMainDisplayID);
#endif

	InitKeyCodes();

	return trueblnr;
}

#if MayFullScreen
LOCALPROC AdjustMachineGrab(void)
{
#if EnableFSMouseMotion
	AdjustMouseMotionGrab();
#endif
}
#endif

#if MayFullScreen
LOCALPROC UngrabMachine(void)
{
	GrabMachine = falseblnr;
	AdjustMachineGrab();
}
#endif

LOCALPROC MyAdjustGLforSize(int h, int v)
{
	[MyNSOpnGLCntxt makeCurrentContext];

	glClearColor (0.0, 0.0, 0.0, 1.0);

#if 1
	glViewport(0, 0, h, v);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(0, h, 0, v, -1.0, 1.0);
	glMatrixMode(GL_MODELVIEW);
#endif

	glColor3f(0.0, 0.0, 0.0);
#if EnableMagnify
	if (UseMagnify) {
		glPixelZoom(MyWindowScale, - MyWindowScale);
	} else
#endif
	{
		glPixelZoom(1, -1);
	}
	glPixelStorei(GL_UNPACK_ROW_LENGTH, vMacScreenWidth);

	glClear(GL_COLOR_BUFFER_BIT);

	[NSOpenGLContext clearCurrentContext];

	ScreenChangedAll();
}

LOCALVAR blnr WantScreensChangedCheck = falseblnr;

LOCALPROC MyUpdateOpenGLContext(void)
{
	if (nil != MyNSOpnGLCntxt) {
		[MyNSOpnGLCntxt makeCurrentContext];
		[MyNSOpnGLCntxt update];
	}
}

LOCALPROC CloseMyOpenGLContext(void)
{
	if (nil != MyNSOpnGLCntxt) {

		[NSOpenGLContext clearCurrentContext];
		/*
			Only because MyDrawWithOpenGL doesn't
			bother to do this. No one
			uses the current context
			without settting it first.
		*/
	}
}

LOCALFUNC blnr GetOpnGLCntxt(void)
{
	blnr v = falseblnr;

	if (nil == MyNSOpnGLCntxt) {
		NSRect NewWinRect = [MyNSview frame];
		NSOpenGLPixelFormat *fmt;

#if WantGraphicsSwitching
		{
			NSOpenGLPixelFormatAttribute attr0[] = {
				NSOpenGLPFAAllowOfflineRenderers,
				0};

			fmt =
				[[NSOpenGLPixelFormat alloc] initWithAttributes:attr0];
		}
		if (nil != fmt) {
			/* ok */
		} else
#endif
		{
			NSOpenGLPixelFormatAttribute attr[] = {
				0};

			fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr];
			if (nil == fmt) {
#if dbglog_HAVE
				dbglog_writeln("Could not create fmt");
#endif
				goto label_exit;
			}
		}

		MyNSOpnGLCntxt = [[NSOpenGLContext alloc]
			initWithFormat:fmt shareContext:nil];

		[fmt release];

		if (nil == MyNSOpnGLCntxt) {
#if dbglog_HAVE
			dbglog_writeln("Could not create MyNSOpnGLCntxt");
#endif
			goto label_exit;
		}

		/* fprintf(stderr, "%s\n", "Got OpenGL context"); */

		[MyNSOpnGLCntxt setView: MyNSview];
		[MyNSOpnGLCntxt update];

		MyAdjustGLforSize(NewWinRect.size.width,
			NewWinRect.size.height);

#if 0 != vMacScreenDepth
		ColorModeWorks = trueblnr;
#endif
	}
	v = trueblnr;

label_exit:
	return v;
}

typedef NSUInteger (*modifierFlagsProcPtr)
	(id self, SEL cmd);

/* Subclass of NSWindow to fix genie effect and support resize events */
@interface MyClassWindow : NSWindow
@end

@implementation MyClassWindow

#if MayFullScreen
- (BOOL)canBecomeKeyWindow
{
	return
#if VarFullScreen
		(! UseFullScreen) ? [super canBecomeKeyWindow] :
#endif
		YES;
}
#endif

#if MayFullScreen
- (BOOL)canBecomeMainWindow
{
	return
#if VarFullScreen
		(! UseFullScreen) ? [super canBecomeMainWindow] :
#endif
		YES;
}
#endif

#if MayFullScreen
- (NSRect)constrainFrameRect:(NSRect)frameRect
	toScreen:(NSScreen *)screen
{
#if VarFullScreen
	if (! UseFullScreen) {
		return [super constrainFrameRect:frameRect toScreen:screen];
	} else
#endif
	{
		return frameRect;
	}
}
#endif

- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
{
	/* NSPasteboard *pboard = [sender draggingPasteboard]; */
	NSDragOperation sourceDragMask =
		[sender draggingSourceOperationMask];
	NSDragOperation v = NSDragOperationNone;

	if (0 != (sourceDragMask & NSDragOperationGeneric)) {
		return NSDragOperationGeneric;
	}

	return v;
}

- (void)draggingExited:(id <NSDraggingInfo>)sender
{
	/* remove hilighting */
}

- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender
{
	return YES;
}

- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
{
	BOOL v = NO;
	NSPasteboard *pboard = [sender draggingPasteboard];
	/*
		NSDragOperation sourceDragMask =
			[sender draggingSourceOperationMask];
	*/

	if ([[pboard types] containsObject:NSFilenamesPboardType]) {
		int i;
		NSArray *file_names =
			[pboard propertyListForType: NSFilenamesPboardType];
		int n = [file_names count];

		for (i = 0; i < n; ++i) {
			NSString *filePath = [file_names objectAtIndex:i];
			Sony_ResolveInsert(filePath);
		}
		v = YES;
	} else if ([[pboard types] containsObject: NSURLPboardType]) {
		NSURL *fileURL = [NSURL URLFromPasteboard: pboard];
		NSString* filePath = [fileURL path];
		Sony_ResolveInsert(filePath);
		v = YES;
	}

	if (v && gTrueBackgroundFlag) {
		{
			SEL sel = @selector(modifierFlags);

			if ([NSEvent respondsToSelector:sel]) {
				modifierFlagsProcPtr imp = (modifierFlagsProcPtr)
					[NSEvent methodForSelector:sel];

				MyUpdateKeyboardModifiers(imp([NSEvent class], sel));
			}
		}

		[NSApp activateIgnoringOtherApps: YES];
	}

	return v;
}

- (void) concludeDragOperation:(id <NSDraggingInfo>)the_sender
{
}

@end

@interface MyClassWindowDelegate : NSObject <NSWindowDelegate>
@end

@implementation MyClassWindowDelegate

- (BOOL)windowShouldClose:(id)sender
{
	RequestMacOff = trueblnr;
	return NO;
}

- (void)windowDidBecomeKey:(NSNotification *)aNotification
{
	gTrueBackgroundFlag = falseblnr;
}

- (void)windowDidResignKey:(NSNotification *)aNotification
{
	gTrueBackgroundFlag = trueblnr;
}

@end

@interface MyClassView : NSView
@end

@implementation MyClassView

- (void)resetCursorRects
{
	[self addCursorRect: [self visibleRect]
		cursor: [NSCursor arrowCursor]];
}

- (BOOL)isOpaque
{
	return YES;
}

- (void)drawRect:(NSRect)dirtyRect
{
	/*
		Called upon makeKeyAndOrderFront. Create our
		OpenGL context here, because can't do so
		before makeKeyAndOrderFront.
		And if create after then our content won't
		be drawn initially, resulting in flicker.
	*/
	if (GetOpnGLCntxt()) {
		MyDrawWithOpenGL(0, 0, vMacScreenHeight, vMacScreenWidth);
	}
}

@end

#if UseCGContextDrawImage
/* absent in 10.3.9.  */
CG_EXTERN CGImageRef CGBitmapContextCreateImage(CGContextRef);
#endif


LOCALVAR MyClassWindowDelegate *MyWinDelegate = nil;

LOCALPROC CloseMainWindow(void)
{
	if (nil != MyWinDelegate) {
		[MyWinDelegate release];
		MyWinDelegate = nil;
	}

	if (nil != MyWindow) {
		[MyWindow close];
		MyWindow = nil;
	}

	if (nil != MyNSview) {
		[MyNSview release];
		MyNSview = nil;
	}

#if UseCGContextDrawImage
	if (nil != MyCGcontext) {
		CGContextFlush(MyCGcontext);
		CGContextRelease(MyCGcontext);
		MyCGcontext = nil;
	}

	if (NULL != MyPixels) {
		free(MyPixels);
		MyPixels = NULL;
	}
#endif

	if (nil != MyNSOpnGLCntxt) {
		[MyNSOpnGLCntxt release];
		MyNSOpnGLCntxt = nil;
	}
}

LOCALPROC QZ_SetCaption(void)
{
#if 0
	NSString *string =
		[[NSString alloc] initWithUTF8String: kStrAppName];
#endif
	[MyWindow setTitle: myAppName /* string */];
#if 0
	[string release];
#endif
}

enum {
	kMagStateNormal,
#if EnableMagnify
	kMagStateMagnifgy,
#endif
	kNumMagStates
};

#define kMagStateAuto kNumMagStates

#if MayNotFullScreen
LOCALVAR int CurWinIndx;
LOCALVAR blnr HavePositionWins[kNumMagStates];
LOCALVAR NSPoint WinPositionWins[kNumMagStates];
#endif

LOCALVAR NSRect SavedScrnBounds;

LOCALFUNC blnr CreateMainWindow(void)
{
#if UseCGContextDrawImage
	CGColorSpaceRef cgColorspace;
#endif
	unsigned int style;
	NSRect MainScrnBounds;
	NSRect AllScrnBounds;
	NSRect NewWinRect;
	NSPoint botleftPos;
	int NewWindowHeight = vMacScreenHeight;
	int NewWindowWidth = vMacScreenWidth;
	blnr v = falseblnr;

#if VarFullScreen
	if (UseFullScreen) {
		My_HideMenuBar();
	} else {
		My_ShowMenuBar();
	}
#else
#if MayFullScreen
	My_HideMenuBar();
#endif
#endif

	MainScrnBounds = [[NSScreen mainScreen] frame];
	SavedScrnBounds = MainScrnBounds;
	{
		int i;
		NSArray *screens = [NSScreen screens];
		int n = [screens count];

		AllScrnBounds = MainScrnBounds;
		for (i = 0; i < n; ++i) {
			AllScrnBounds = NSUnionRect(AllScrnBounds,
				[[screens objectAtIndex:i] frame]);
		}
	}

#if EnableMagnify
	if (UseMagnify) {
		NewWindowHeight *= MyWindowScale;
		NewWindowWidth *= MyWindowScale;
	}
#endif

	botleftPos.x = MainScrnBounds.origin.x
		+ floor((MainScrnBounds.size.width
			- NewWindowWidth) / 2);
	botleftPos.y = MainScrnBounds.origin.y
		+ floor((MainScrnBounds.size.height
			- NewWindowHeight) / 2);
	if (botleftPos.x < MainScrnBounds.origin.x) {
		botleftPos.x = MainScrnBounds.origin.x;
	}
	if (botleftPos.y < MainScrnBounds.origin.y) {
		botleftPos.y = MainScrnBounds.origin.y;
	}

#if VarFullScreen
	if (UseFullScreen)
#endif
#if MayFullScreen
	{
		ViewHSize = MainScrnBounds.size.width;
		ViewVSize = MainScrnBounds.size.height;
#if EnableMagnify
		if (UseMagnify) {
			ViewHSize /= MyWindowScale;
			ViewVSize /= MyWindowScale;
		}
#endif
		if (ViewHSize >= vMacScreenWidth) {
			ViewHStart = 0;
			ViewHSize = vMacScreenWidth;
		} else {
			ViewHSize &= ~ 1;
		}
		if (ViewVSize >= vMacScreenHeight) {
			ViewVStart = 0;
			ViewVSize = vMacScreenHeight;
		} else {
			ViewVSize &= ~ 1;
		}
	}
#endif


#if VarFullScreen
	if (UseFullScreen)
#endif
#if MayFullScreen
	{
		NewWinRect = AllScrnBounds;

		GLhOffset = botleftPos.x - AllScrnBounds.origin.x;
		GLvOffset = (botleftPos.y - AllScrnBounds.origin.y)
			+ ((NewWindowHeight < MainScrnBounds.size.height)
				? NewWindowHeight : MainScrnBounds.size.height);

		hOffset = GLhOffset;
		vOffset = AllScrnBounds.size.height - GLvOffset;

		style = NSBorderlessWindowMask;
	}
#endif
#if VarFullScreen
	else
#endif
#if MayNotFullScreen
	{
		int WinIndx;

#if EnableMagnify
		if (UseMagnify) {
			WinIndx = kMagStateMagnifgy;
		} else
#endif
		{
			WinIndx = kMagStateNormal;
		}

		if (! HavePositionWins[WinIndx]) {
			WinPositionWins[WinIndx].x = botleftPos.x;
			WinPositionWins[WinIndx].y = botleftPos.y;
			HavePositionWins[WinIndx] = trueblnr;
			NewWinRect = NSMakeRect(botleftPos.x, botleftPos.y,
				NewWindowWidth, NewWindowHeight);
		} else {
			NewWinRect = NSMakeRect(WinPositionWins[WinIndx].x,
				WinPositionWins[WinIndx].y,
				NewWindowWidth, NewWindowHeight);
		}

		GLhOffset = 0;
		GLvOffset = NewWindowHeight;

		style = NSTitledWindowMask
			| NSMiniaturizableWindowMask | NSClosableWindowMask;

		CurWinIndx = WinIndx;
	}
#endif

	/* Manually create a window, avoids having a nib file resource */
	MyWindow = [[MyClassWindow alloc]
		initWithContentRect: NewWinRect
		styleMask: style
		backing: NSBackingStoreBuffered
		defer: YES];

	if (nil == MyWindow) {
#if dbglog_HAVE
		dbglog_writeln("Could not create the Cocoa window");
#endif
		goto label_exit;
	}

	/* [MyWindow setReleasedWhenClosed: YES]; */
		/*
			no need to set current_video as it's the
			default for NSWindows
		*/
	QZ_SetCaption();
	[MyWindow setAcceptsMouseMovedEvents: YES];
	[MyWindow setViewsNeedDisplay: NO];

	[MyWindow registerForDraggedTypes:
		[NSArray arrayWithObjects:
			NSURLPboardType, NSFilenamesPboardType, nil]];

	MyWinDelegate = [[MyClassWindowDelegate alloc] init];
	if (nil == MyWinDelegate) {
#if dbglog_HAVE
		dbglog_writeln("Could not create MyNSview");
#endif
		goto label_exit;
	}
	[MyWindow setDelegate: MyWinDelegate];

	MyNSview = [[MyClassView alloc] init];
	if (nil == MyNSview) {
#if dbglog_HAVE
		dbglog_writeln("Could not create MyNSview");
#endif
		goto label_exit;
	}
	[MyWindow setContentView: MyNSview];

	[MyWindow makeKeyAndOrderFront: nil];

	/* just in case drawRect didn't get called */
	if (! GetOpnGLCntxt()) {
#if dbglog_HAVE
		dbglog_writeln("Could not GetOpnGLCntxt");
#endif
		goto label_exit;
	}

#if UseCGContextDrawImage
	MyPitch = 4 * NewWindowWidth;
	MyPixels = malloc(NewWindowHeight * MyPitch);

	cgColorspace = CGColorSpaceCreateDeviceRGB();
	MyCGcontext = CGBitmapContextCreate(MyPixels,
		NewWindowWidth, NewWindowHeight,
		8, MyPitch, cgColorspace,
		kCGImageAlphaNoneSkipFirst);
	CGColorSpaceRelease(cgColorspace);

	MyNSgfxContext = [NSGraphicsContext
		graphicsContextWithWindow: MyWindow];
	[NSGraphicsContext setCurrentContext: MyNSgfxContext];

	MyBytesPerPixel = 4;
#endif

	v = trueblnr;

label_exit:

	return v;
}

#if EnableRecreateW
LOCALPROC ZapMyWState(void)
{
	MyWindow = nil;
	MyNSview = nil;
	MyWinDelegate = nil;
#if UseCGContextDrawImage
	MyNSgfxContext = nil;
	MyCGcontext = nil;
	MyPixels = NULL;
#endif
	MyNSOpnGLCntxt = nil;
}
#endif

#if EnableRecreateW
struct MyWState {
#if MayFullScreen
	ui4r f_ViewHSize;
	ui4r f_ViewVSize;
	ui4r f_ViewHStart;
	ui4r f_ViewVStart;
	short f_hOffset;
	short f_vOffset;
#endif
#if VarFullScreen
	blnr f_UseFullScreen;
#endif
#if EnableMagnify
	blnr f_UseMagnify;
#endif
#if MayNotFullScreen
	int f_CurWinIndx;
#endif
	NSWindow *f_MyWindow;
	NSView *f_MyNSview;
	MyClassWindowDelegate *f_MyWinDelegate;
#if UseCGContextDrawImage
	NSGraphicsContext *f_MyNSgfxContext;
	CGContextRef f_MyCGcontext;
	void *f_MyPixels;
	ui4b f_MyPitch;
	ui3b f_MyBytesPerPixel;
#endif
	NSOpenGLContext *f_MyNSOpnGLCntxt;
	short f_GLhOffset;
	short f_GLvOffset;
};
typedef struct MyWState MyWState;
#endif

#if EnableRecreateW
LOCALPROC GetMyWState(MyWState *r)
{
#if MayFullScreen
	r->f_ViewHSize = ViewHSize;
	r->f_ViewVSize = ViewVSize;
	r->f_ViewHStart = ViewHStart;
	r->f_ViewVStart = ViewVStart;
	r->f_hOffset = hOffset;
	r->f_vOffset = vOffset;
#endif
#if VarFullScreen
	r->f_UseFullScreen = UseFullScreen;
#endif
#if EnableMagnify
	r->f_UseMagnify = UseMagnify;
#endif
#if MayNotFullScreen
	r->f_CurWinIndx = CurWinIndx;
#endif
	r->f_MyWindow = MyWindow;
	r->f_MyNSview = MyNSview;
	r->f_MyWinDelegate = MyWinDelegate;
#if UseCGContextDrawImage
	r->f_MyNSgfxContext = MyNSgfxContext;
	r->f_MyCGcontext = MyCGcontext;
	r->f_MyPixels = MyPixels;
	r->f_MyPitch = MyPitch;
	r->f_MyBytesPerPixel = MyBytesPerPixel;
#endif
	r->f_MyNSOpnGLCntxt = MyNSOpnGLCntxt;
	r->f_GLhOffset = GLhOffset;
	r->f_GLvOffset = GLvOffset;
}
#endif

#if EnableRecreateW
LOCALPROC SetMyWState(MyWState *r)
{
#if MayFullScreen
	ViewHSize = r->f_ViewHSize;
	ViewVSize = r->f_ViewVSize;
	ViewHStart = r->f_ViewHStart;
	ViewVStart = r->f_ViewVStart;
	hOffset = r->f_hOffset;
	vOffset = r->f_vOffset;
#endif
#if VarFullScreen
	UseFullScreen = r->f_UseFullScreen;
#endif
#if EnableMagnify
	UseMagnify = r->f_UseMagnify;
#endif
#if MayNotFullScreen
	CurWinIndx = r->f_CurWinIndx;
#endif
	MyWindow = r->f_MyWindow;
	MyNSview = r->f_MyNSview;
	MyWinDelegate = r->f_MyWinDelegate;
#if UseCGContextDrawImage
	MyNSgfxContext = r->f_MyNSgfxContext;
	MyCGcontext = r->f_MyCGcontext;
	MyPixels = r->f_MyPixels;
	MyPitch = r->f_MyPitch;
	MyBytesPerPixel = r->f_MyBytesPerPixel;
#endif
	MyNSOpnGLCntxt = r->f_MyNSOpnGLCntxt;
	GLhOffset = r->f_GLhOffset;
	GLvOffset = r->f_GLvOffset;
}
#endif

#if EnableRecreateW
LOCALPROC ReCreateMainWindow(void)
{
	MyWState old_state;
	MyWState new_state;
	blnr HadCursorHidden = HaveCursorHidden;

#if VarFullScreen
	if (! UseFullScreen)
#endif
#if MayNotFullScreen
	{
		/* save old position */
		NSRect r =
			[NSWindow contentRectForFrameRect: [MyWindow frame]
				styleMask: [MyWindow styleMask]];
		WinPositionWins[CurWinIndx] = r.origin;
	}
#endif

#if MayFullScreen
	if (GrabMachine) {
		GrabMachine = falseblnr;
		UngrabMachine();
	}
#endif

	CloseMyOpenGLContext();

	GetMyWState(&old_state);

	ZapMyWState();

#if EnableMagnify
	UseMagnify = WantMagnify;
#endif
#if VarFullScreen
	UseFullScreen = WantFullScreen;
#endif

	if (! CreateMainWindow()) {
		CloseMainWindow();
		SetMyWState(&old_state);

#if VarFullScreen
		if (UseFullScreen) {
			My_HideMenuBar();
		} else {
			My_ShowMenuBar();
		}
#endif

		/* avoid retry */
#if VarFullScreen
		WantFullScreen = UseFullScreen;
#endif
#if EnableMagnify
		WantMagnify = UseMagnify;
#endif

	} else {
		GetMyWState(&new_state);
		SetMyWState(&old_state);
		CloseMainWindow();
		SetMyWState(&new_state);

		if (HadCursorHidden) {
			(void) MyMoveMouse(CurMouseH, CurMouseV);
		}
	}
}
#endif

#if VarFullScreen && EnableMagnify
enum {
	kWinStateWindowed,
#if EnableMagnify
	kWinStateFullScreen,
#endif
	kNumWinStates
};
#endif

#if VarFullScreen && EnableMagnify
LOCALVAR int WinMagStates[kNumWinStates];
#endif

LOCALPROC ZapWinStateVars(void)
{
#if MayNotFullScreen
	{
		int i;

		for (i = 0; i < kNumMagStates; ++i) {
			HavePositionWins[i] = falseblnr;
		}
	}
#endif
#if VarFullScreen && EnableMagnify
	{
		int i;

		for (i = 0; i < kNumWinStates; ++i) {
			WinMagStates[i] = kMagStateAuto;
		}
	}
#endif
}

#if VarFullScreen
LOCALPROC ToggleWantFullScreen(void)
{
	WantFullScreen = ! WantFullScreen;

#if EnableMagnify
	{
		int OldWinState =
			UseFullScreen ? kWinStateFullScreen : kWinStateWindowed;
		int OldMagState =
			UseMagnify ? kMagStateMagnifgy : kMagStateNormal;
		int NewWinState =
			WantFullScreen ? kWinStateFullScreen : kWinStateWindowed;
		int NewMagState = WinMagStates[NewWinState];

		WinMagStates[OldWinState] = OldMagState;
		if (kMagStateAuto != NewMagState) {
			WantMagnify = (kMagStateMagnifgy == NewMagState);
		} else {
			WantMagnify = falseblnr;
			if (WantFullScreen) {
				NSRect MainScrnBounds = [[NSScreen mainScreen] frame];

				if ((MainScrnBounds.size.width
						>= vMacScreenWidth * MyWindowScale)
					&& (MainScrnBounds.size.height
						>= vMacScreenHeight * MyWindowScale)
					)
				{
					WantMagnify = trueblnr;
				}
			}
		}
	}
#endif
}
#endif

/* --- SavedTasks --- */

LOCALPROC LeaveBackground(void)
{
	ReconnectKeyCodes3();
	DisableKeyRepeat();
	EmulationWasInterrupted = trueblnr;
}

LOCALPROC EnterBackground(void)
{
	RestoreKeyRepeat();
	DisconnectKeyCodes3();

	ForceShowCursor();
}

LOCALPROC LeaveSpeedStopped(void)
{
#if MySoundEnabled
	MySound_Start();
#endif

	StartUpTimeAdjust();
}

LOCALPROC EnterSpeedStopped(void)
{
#if MySoundEnabled
	MySound_Stop();
#endif
}

#if IncludeSonyNew && ! SaveDialogEnable
LOCALFUNC blnr FindOrMakeNamedChildDirPath(NSString *parentPath,
	char *ChildName, NSString **childPath)
{
	NSString *r;
	BOOL isDir;
	Boolean isDirectory;
	NSFileManager *fm = [NSFileManager defaultManager];
	blnr v = falseblnr;

	if (FindNamedChildPath(parentPath, ChildName, &r)) {
		if ([fm fileExistsAtPath:r isDirectory: &isDir])
		{
			if (isDir) {
				*childPath = r;
				v = trueblnr;
			} else {
				NSString *RslvPath = MyResolveAlias(r, &isDirectory);
				if (nil != RslvPath) {
					if (isDirectory) {
						*childPath = RslvPath;
						v = trueblnr;
					}
				}
			}
		} else {
			if ([fm respondsToSelector:@selector(
createDirectoryAtPath:withIntermediateDirectories:attributes:error:
				)])
			{
				if ([fm
					createDirectoryAtPath:r
					withIntermediateDirectories:NO
					attributes:nil
					error:nil])
				{
					*childPath = r;
					v = trueblnr;
				}
			} else
			if ([fm respondsToSelector:
				@selector(createDirectoryAtPath:attributes:)])
			{
				if ([fm
					createDirectoryAtPath:r
					attributes:nil])
				{
					*childPath = r;
					v = trueblnr;
				}
			} else
			{
				/* fail */
			}
		}
	}

	return v;
}
#endif

@interface MyNSSavePanel : NSObject
- (NSInteger)runModalForDirectory:(NSString *)path
	file:(NSString *)filename;
- (void)setNameFieldStringValue:(NSString *)value;
@end

#if IncludeSonyNew
LOCALPROC MakeNewDisk(ui5b L, NSString *drivename)
{
#if SaveDialogEnable
	NSInteger result = NSCancelButton;
	NSSavePanel *panel = [NSSavePanel savePanel];

	MyBeginDialog();

	if ([panel respondsToSelector:@selector(setNameFieldStringValue:)])
	{
#if 0
		[panel setNameFieldStringValue: drivename];
			/* available as of OS X 10.6 */
#endif
#if 0
		[panel performSelector:@selector(setNameFieldStringValue:)
			withObject: drivename];
#endif
		[((MyNSSavePanel *)panel)
			setNameFieldStringValue: drivename];

		result = [panel runModal];
	} else
	if ([panel
		respondsToSelector: @selector(runModalForDirectory:file:)])
	{
#if 0
		result = [panel runModalForDirectory: nil file: drivename];
			/*
				compiler warns deprecated. To avoid warning, and
				to still work if removed from SDK, use NSInvocation.
			*/
#endif
#if 0
		NSString *sDirName = nil;
		SEL sel = @selector(runModalForDirectory:file:);
		NSInvocation* invoc =
			[NSInvocation invocationWithMethodSignature:
				[panel methodSignatureForSelector: sel]];
		[invoc setTarget:panel];
		[invoc setSelector:sel];
		[invoc setArgument:&sDirName atIndex:2];
		[invoc setArgument:&drivename atIndex:3];
		[invoc invoke];
		[invoc getReturnValue: &result];
#endif
		/* an easier way ? seems to work */
		result = [((MyNSSavePanel *)panel)
			runModalForDirectory: nil file: drivename];
	} else
	{
		/* fail */
	}

	MyEndDialog();

	if (NSOKButton == result) {
		NSString* filePath = [[panel URL] path];
		MakeNewDisk0(L, filePath);
	}
#else /* SaveDialogEnable */
	NSString *sPath;

	if (FindOrMakeNamedChildDirPath(MyDataPath, "out", &sPath)) {
		NSString *filePath =
			[sPath stringByAppendingPathComponent: drivename];
		MakeNewDisk0(L, filePath);
	}
#endif /* SaveDialogEnable */
}
#endif

#if IncludeSonyNew
LOCALPROC MakeNewDiskAtDefault(ui5b L)
{
	MakeNewDisk(L, @"untitled.dsk");
}
#endif

LOCALPROC CheckForSavedTasks(void)
{
	if (MyEvtQNeedRecover) {
		MyEvtQNeedRecover = falseblnr;

		/* attempt cleanup, MyEvtQNeedRecover may get set again */
		MyEvtQTryRecoverFromFull();
	}

	if (RequestMacOff) {
		RequestMacOff = falseblnr;
		if (AnyDiskInserted()) {
			MacMsgOverride(kStrQuitWarningTitle,
				kStrQuitWarningMessage);
		} else {
			ForceMacOff = trueblnr;
		}
	}

	if (ForceMacOff) {
		return;
	}

	if (gTrueBackgroundFlag != gBackgroundFlag) {
		gBackgroundFlag = gTrueBackgroundFlag;
		if (gTrueBackgroundFlag) {
			EnterBackground();
		} else {
			LeaveBackground();
		}
	}

	if (EmulationWasInterrupted) {
		EmulationWasInterrupted = falseblnr;

		if (! gTrueBackgroundFlag) {
			CheckMouseState();
		}
	}

#if EnableFSMouseMotion
	if (HaveMouseMotion) {
		MyMouseConstrain();
	}
#endif

#if VarFullScreen
	if (gTrueBackgroundFlag && WantFullScreen) {
		ToggleWantFullScreen();
	}
#endif

	if (WantScreensChangedCheck) {
		WantScreensChangedCheck = falseblnr;

		MyUpdateOpenGLContext();

#if VarFullScreen
		/*
			triggered on enter full screen for some
			reason in OS X 10.11. so check against
			saved rect.
		*/
		if ((WantFullScreen)
			&& (! NSEqualRects(SavedScrnBounds,
				[[NSScreen mainScreen] frame])))
		{
			ToggleWantFullScreen();
		}
#endif
	}

	if (CurSpeedStopped != (SpeedStopped ||
		(gBackgroundFlag && ! RunInBackground
#if EnableAutoSlow && 0
			&& (QuietSubTicks >= 4092)
#endif
		)))
	{
		CurSpeedStopped = ! CurSpeedStopped;
		if (CurSpeedStopped) {
			EnterSpeedStopped();
		} else {
			LeaveSpeedStopped();
		}
	}

	if ((nullpr != SavedBriefMsg) & ! MacMsgDisplayed) {
		MacMsgDisplayOn();
	}

#if EnableRecreateW
	if (0
#if EnableMagnify
		|| (UseMagnify != WantMagnify)
#endif
#if VarFullScreen
		|| (UseFullScreen != WantFullScreen)
#endif
		)
	{
		ReCreateMainWindow();
	}
#endif

#if MayFullScreen
	if (GrabMachine != (
#if VarFullScreen
		UseFullScreen &&
#endif
		! (gTrueBackgroundFlag || CurSpeedStopped)))
	{
		GrabMachine = ! GrabMachine;
		AdjustMachineGrab();
	}
#endif

#if IncludeSonyNew
	if (vSonyNewDiskWanted) {
#if IncludeSonyNameNew
		if (vSonyNewDiskName != NotAPbuf) {
			NSString *sNewDiskName;
			if (MacRomanFileNameToNSString(vSonyNewDiskName,
				&sNewDiskName))
			{
				MakeNewDisk(vSonyNewDiskSize, sNewDiskName);
			}
			PbufDispose(vSonyNewDiskName);
			vSonyNewDiskName = NotAPbuf;
		} else
#endif
		{
			MakeNewDiskAtDefault(vSonyNewDiskSize);
		}
		vSonyNewDiskWanted = falseblnr;
			/* must be done after may have gotten disk */
	}
#endif

	if (NeedWholeScreenDraw) {
		NeedWholeScreenDraw = falseblnr;
		ScreenChangedAll();
	}

	if (! gTrueBackgroundFlag) {
		if (RequestInsertDisk) {
			RequestInsertDisk = falseblnr;
			InsertADisk0();
		}
	}

#if NeedRequestIthDisk
	if (0 != RequestIthDisk) {
		Sony_InsertIth(RequestIthDisk);
		RequestIthDisk = 0;
	}
#endif

	if (HaveCursorHidden != (
#if MayNotFullScreen
		(WantCursorHidden
#if VarFullScreen
			|| UseFullScreen
#endif
		) &&
#endif
		! (gTrueBackgroundFlag || CurSpeedStopped)))
	{
		HaveCursorHidden = ! HaveCursorHidden;
		if (HaveCursorHidden) {
			MyHideCursor();
		} else {
			MyShowCursor();
		}
	}

#if 1
	/*
		Check if actual cursor visibility is what it should be.
		If move mouse to dock then cursor is made visible, but then
		if move directly to our window, cursor is not hidden again.
	*/
	if (HaveMyCGCursorIsVisible()) {
		/* but only in OS X 10.3 and later */
		/* deprecated in cocoa, but no alternative (?) */
		if (MyCGCursorIsVisible()) {
			if (HaveCursorHidden) {
				MyHideCursor();
				if (MyCGCursorIsVisible()) {
					/*
						didn't work, attempt undo so that
						hide cursor count won't get large
					*/
					MyShowCursor();
				}
			}
		} else {
			if (! HaveCursorHidden) {
				MyShowCursor();
				/*
					don't check if worked, assume can't decrement
					hide cursor count below 0
				*/
			}
		}
	}
#endif
}

/* --- main program flow --- */

GLOBALOSGLUFUNC blnr ExtraTimeNotOver(void)
{
	UpdateTrueEmulatedTime();
	return TrueEmulatedTime == OnTrueTime;
}

LOCALPROC ProcessEventModifiers(NSEvent *event)
{
	NSUInteger newMods = [event modifierFlags];

	MyUpdateKeyboardModifiers(newMods);
}

LOCALPROC ProcessEventLocation(NSEvent *event)
{
	NSPoint p = [event locationInWindow];
	NSWindow *w = [event window];

	if (w != MyWindow) {
		if (nil != w) {
			p = [w convertBaseToScreen: p];
		}
		p = [MyWindow convertScreenToBase: p];
	}
	p = [MyNSview convertPoint: p fromView: nil];
	p.y = [MyNSview frame].size.height - p.y;
	MousePositionNotify((int) p.x, (int) p.y);
}

LOCALPROC ProcessKeyEvent(blnr down, NSEvent *event)
{
	ui3r scancode = [event keyCode];

	ProcessEventModifiers(event);
	Keyboard_UpdateKeyMap2(Keyboard_RemapMac(scancode), down);
}

LOCALPROC ProcessOneSystemEvent(NSEvent *event)
{
	switch ([event type]) {
		case NSLeftMouseDown:
		case NSRightMouseDown:
		case NSOtherMouseDown:
			/*
				int button = QZ_OtherMouseButtonToSDL(
					[event buttonNumber]);
			*/
			ProcessEventLocation(event);
			ProcessEventModifiers(event);
			if (([event window] == MyWindow)
				&& (! gTrueBackgroundFlag)
#if MayNotFullScreen
				&& (WantCursorHidden
#if VarFullScreen
				|| UseFullScreen
#endif
				)
#endif
				)
			{
				MyMouseButtonSet(trueblnr);
			} else {
				/* doesn't belong to us */
				[NSApp sendEvent: event];
			}
			break;

		case NSLeftMouseUp:
		case NSRightMouseUp:
		case NSOtherMouseUp:
			/*
				int button = QZ_OtherMouseButtonToSDL(
					[event buttonNumber]);
			*/
			ProcessEventLocation(event);
			ProcessEventModifiers(event);
			if (! MyMouseButtonState) {
				/* doesn't belong to us */
				[NSApp sendEvent: event];
			} else {
				MyMouseButtonSet(falseblnr);
			}
			break;

		case NSMouseMoved:
			{
				ProcessEventLocation(event);
				ProcessEventModifiers(event);
			}
			break;
		case NSLeftMouseDragged:
		case NSRightMouseDragged:
		case NSOtherMouseDragged:
			if (! MyMouseButtonState) {
				/* doesn't belong to us ? */
				[NSApp sendEvent: event];
			} else {
				ProcessEventLocation(event);
				ProcessEventModifiers(event);
			}
			break;
		case NSKeyUp:
			ProcessKeyEvent(falseblnr, event);
			break;
		case NSKeyDown:
			ProcessKeyEvent(trueblnr, event);
			break;
		case NSFlagsChanged:
			ProcessEventModifiers(event);
			break;
		/* case NSScrollWheel: */
		/* case NSSystemDefined: */
		/* case NSAppKitDefined: */
		/* case NSApplicationDefined: */
		/* case NSPeriodic: */
		/* case NSCursorUpdate: */
		default:
			[NSApp sendEvent: event];
	}
}

GLOBALOSGLUPROC WaitForNextTick(void)
{
	NSDate *TheUntil;
	int i;
	NSEvent *event;
	NSAutoreleasePool *pool;

	pool = [[NSAutoreleasePool alloc] init];

	NSDate *TheDistantFuture = [NSDate distantFuture];
	NSDate *TheDistantPast = [NSDate distantPast];
#if 0
	NSDate *TheNextTick = [NSDate
		dateWithTimeIntervalSinceReferenceDate: NextTickChangeTime];
#endif

	TheUntil = TheDistantPast;

label_retry:

	i = 32;
	while ((--i >= 0) && (nil != (event =
		[NSApp nextEventMatchingMask: NSAnyEventMask
			untilDate: TheUntil
			inMode: NSDefaultRunLoopMode
			dequeue: YES])))
	{
		ProcessOneSystemEvent(event);
		TheUntil = TheDistantPast;
	}

	CheckForSavedTasks();

	if (ForceMacOff) {
		goto label_exit;
	}

	if (CurSpeedStopped) {
		DoneWithDrawingForTick();
		TheUntil = TheDistantFuture;
		goto label_retry;
	}

	if (ExtraTimeNotOver()) {
#if 1
#if 0 && EnableAutoSlow
		if ((QuietSubTicks >= 16384)
			&& (QuietTime >= 34)
			&& ! WantNotAutoSlow)
		{
			TheUntil = [NSDate
				dateWithTimeIntervalSinceReferenceDate:
					(NextTickChangeTime + 0.50)];
		} else
#endif
		{
			NSTimeInterval inTimeout =
				NextTickChangeTime - LatestTime;
			if (inTimeout > 0.0) {
				struct timespec rqt;
				struct timespec rmt;

				rqt.tv_sec = 0;
				rqt.tv_nsec = inTimeout * 1000000000.0;
				(void) nanosleep(&rqt, &rmt);
			}
			TheUntil = TheDistantPast;
		}
#else
		/*
			This has higher overhead.
		*/
		TheUntil = TheNextTick;
#endif
		goto label_retry;
	}

#if 0
	if (! gTrueBackgroundFlag) {
		CheckMouseState();
	}
#endif

	if (CheckDateTime()) {
#if MySoundEnabled
		MySound_SecondNotify();
#endif
#if EnableDemoMsg
		DemoModeSecondNotify();
#endif
	}

	OnTrueTime = TrueEmulatedTime;

#if dbglog_TimeStuff
	dbglog_writelnNum("WaitForNextTick, OnTrueTime", OnTrueTime);
#endif

label_exit:
	[pool release];
}

typedef Boolean (*SecTranslocateIsTranslocatedURL_t)(
	CFURLRef path, bool *isTranslocated, CFErrorRef * error);
typedef CFURLRef (*SecTranslocateCreateOriginalPathForURL_t)(
	CFURLRef translocatedPath, CFErrorRef * error);

LOCALFUNC blnr setupWorkingDirectory(void)
{
	NSString *myAppDir;
	NSString *contentsPath;
	NSString *dataPath;
	NSBundle *myBundle = [NSBundle mainBundle];
	NSString *myAppPath = [myBundle bundlePath];

#if WantUnTranslocate
	{
		bool isTranslocated;
		void *sec_handle = NULL;
		SecTranslocateIsTranslocatedURL_t
			mySecTranslocateIsTranslocatedURL = NULL;
		CFURLRef url = NULL;
		SecTranslocateCreateOriginalPathForURL_t
			mySecTranslocateCreateOriginalPathForURL = NULL;
		CFURLRef untranslocatedURL = NULL;
		NSString *realAppPath = NULL;

		if (NULL == (sec_handle = dlopen(
			"/System/Library/Frameworks/Security.framework/Security",
			RTLD_LAZY)))
		{
			/* fail */
		} else
		if (NULL == (mySecTranslocateIsTranslocatedURL =
			dlsym(sec_handle, "SecTranslocateIsTranslocatedURL")))
		{
			/* fail */
		} else
		if (NULL == (url =
			CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
				(CFStringRef)myAppPath, kCFURLPOSIXPathStyle, NO)))
		{
			/* fail */
		} else
		if (! mySecTranslocateIsTranslocatedURL(url, &isTranslocated,
			NULL))
		{
			/* fail */
		} else
		if (! isTranslocated) {
			/* done */
		} else
		if (NULL == (mySecTranslocateCreateOriginalPathForURL =
			dlsym(sec_handle,
				"SecTranslocateCreateOriginalPathForURL")))
		{
			/* fail */
		} else
		if (NULL == (untranslocatedURL =
			mySecTranslocateCreateOriginalPathForURL(url, NULL)))
		{
			/* fail */
		} else
		if (NULL == (realAppPath =
			(NSString *)CFURLCopyFileSystemPath(
				untranslocatedURL, kCFURLPOSIXPathStyle)))
		{
			/* fail */
		} else
		{
			myAppPath = realAppPath;
		}

		if (NULL != realAppPath) {
			[realAppPath autorelease];
		}
		if (NULL != untranslocatedURL) {
			CFRelease(untranslocatedURL);
		}
		if (NULL != url) {
			CFRelease(url);
		}
		if (NULL != sec_handle) {
			if (0 != dlclose(sec_handle)) {
				/* dbglog_writeln("dlclose  failed"); */
			}
		}
	}
#endif /* WantUnTranslocate */

	myAppDir = [myAppPath stringByDeletingLastPathComponent];
	myAppName = [[[myAppPath lastPathComponent]
		stringByDeletingPathExtension] retain];

	MyDataPath = myAppDir;
	if (FindNamedChildDirPath(myAppPath, "Contents", &contentsPath))
	if (FindNamedChildDirPath(contentsPath, "mnvm_dat", &dataPath))
	{
		MyDataPath = dataPath;
	}
	[MyDataPath retain];

	return trueblnr;
}

@interface MyClassApplicationDelegate : NSObject <NSApplicationDelegate>
@end

@implementation MyClassApplicationDelegate

- (BOOL)application:(NSApplication *)theApplication
	openFile:(NSString *)filename
{
	(void) Sony_Insert1a(filename);

	return TRUE;
}

- (void) applicationDidFinishLaunching: (NSNotification *) note
{
	[NSApp stop: nil]; /* stop immediately */

	{
		/*
			doesn't actually stop until an event, so make one.
			(As suggested by Michiel de Hoon in
			http://www.cocoabuilder.com/ post.)
		*/
		NSEvent* event = [NSEvent
			otherEventWithType: NSApplicationDefined
			location: NSMakePoint(0, 0)
			modifierFlags: 0
			timestamp: 0.0
			windowNumber: 0
			context: nil
			subtype: 0
			data1: 0
			data2: 0];
		[NSApp postEvent: event atStart: true];
	}
}

- (void)applicationDidChangeScreenParameters:
	(NSNotification *)aNotification
{
	WantScreensChangedCheck = trueblnr;
}

- (IBAction)performSpecialMoreCommands:(id)sender
{
	DoMoreCommandsMsg();
}

- (IBAction)performFileOpen:(id)sender
{
	RequestInsertDisk = trueblnr;
}

- (IBAction)performApplicationAbout:(id)sender
{
	DoAboutMsg();
}

@end

LOCALVAR MyClassApplicationDelegate *MyApplicationDelegate = nil;

LOCALFUNC blnr InitCocoaStuff(void)
{
	NSApplication *MyNSApp = [NSApplication sharedApplication];
		/*
			in Xcode 6.2, MyNSApp isn't the same as NSApp,
			breaks NSApp setDelegate
		*/

	MyMenuSetup();

	MyApplicationDelegate = [[MyClassApplicationDelegate alloc] init];
	[MyNSApp setDelegate: MyApplicationDelegate];

#if 0
	[MyNSApp finishLaunching];
#endif
		/*
			If use finishLaunching, after
			Hide Mini vMac command, activating from
			Dock doesn't bring our window forward.
			Using "run" instead fixes this.
			As suggested by Hugues De Keyzer in
			http://forums.libsdl.org/ post.
			SDL 2.0 doesn't use this
			technique. Was another solution found?
		*/

	[MyNSApp run];
		/*
			our applicationDidFinishLaunching forces
			immediate halt.
		*/

	return trueblnr;
}

LOCALPROC UnInitCocoaStuff(void)
{
	if (nil != MyApplicationDelegate) {
		[MyApplicationDelegate release];
	}
	if (nil != myAppName) {
		[myAppName release];
	}
	if (nil != MyDataPath) {
		[MyDataPath release];
	}
}

/* --- platform independent code can be thought of as going here --- */

#include "PROGMAIN.h"

LOCALPROC ZapOSGLUVars(void)
{
	InitDrives();
	ZapWinStateVars();
#if MySoundEnabled
	ZapAudioVars();
#endif
}

LOCALPROC ReserveAllocAll(void)
{
#if dbglog_HAVE
	dbglog_ReserveAlloc();
#endif
	ReserveAllocOneBlock(&ROM, kROM_Size, 5, falseblnr);

	ReserveAllocOneBlock(&screencomparebuff,
		vMacScreenNumBytes, 5, trueblnr);
#if UseControlKeys
	ReserveAllocOneBlock(&CntrlDisplayBuff,
		vMacScreenNumBytes, 5, falseblnr);
#endif

	ReserveAllocOneBlock(&ScalingBuff, vMacScreenNumPixels
#if 0 != vMacScreenDepth
		* 4
#endif
		, 5, falseblnr);
	ReserveAllocOneBlock(&CLUT_final, CLUT_finalsz, 5, falseblnr);

#if MySoundEnabled
	ReserveAllocOneBlock((ui3p *)&TheSoundBuffer,
		dbhBufferSize, 5, falseblnr);
#endif

	EmulationReserveAlloc();
}

LOCALFUNC blnr AllocMyMemory(void)
{
#if 0 /* for testing start up error reporting */
	MacMsg(kStrOutOfMemTitle, kStrOutOfMemMessage, trueblnr);
	return falseblnr;
#else
	uimr n;
	blnr IsOk = falseblnr;

	ReserveAllocOffset = 0;
	ReserveAllocBigBlock = nullpr;
	ReserveAllocAll();
	n = ReserveAllocOffset;
	ReserveAllocBigBlock = (ui3p)calloc(1, n);
	if (NULL == ReserveAllocBigBlock) {
		MacMsg(kStrOutOfMemTitle, kStrOutOfMemMessage, trueblnr);
	} else {
		ReserveAllocOffset = 0;
		ReserveAllocAll();
		if (n != ReserveAllocOffset) {
			/* oops, program error */
		} else {
			IsOk = trueblnr;
		}
	}

	return IsOk;
#endif
}

LOCALPROC UnallocMyMemory(void)
{
	if (nullpr != ReserveAllocBigBlock) {
		free((char *) ReserveAllocBigBlock);
	}
}

LOCALFUNC blnr InitOSGLU(void)
{
	blnr IsOk = falseblnr;
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

	if (AllocMyMemory())
	if (setupWorkingDirectory())
#if dbglog_HAVE
	if (dbglog_open())
#endif
#if MySoundEnabled
	if (MySound_Init())
		/* takes a while to stabilize, do as soon as possible */
#endif
	if (LoadMacRom())
	if (LoadInitialImages())
	if (InitCocoaStuff())
		/*
			Can get openFile call backs here
			for initial files.
			So must load ROM, disk1.dsk, etc first.
		*/
#if UseActvCode
	if (ActvCodeInit())
#endif
#if EmLocalTalk
	if (InitLocalTalk())
#endif
	if (InitLocationDat())
	if (Screen_Init())
	if (CreateMainWindow())
	if (WaitForRom())
	{
		IsOk = trueblnr;
	}

	[pool release];

	return IsOk;
}

#if dbglog_HAVE && 0
IMPORTPROC DumpRTC(void);
#endif

LOCALPROC UnInitOSGLU(void)
{
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

#if dbglog_HAVE && 0
	DumpRTC();
#endif

	if (MacMsgDisplayed) {
		MacMsgDisplayOff();
	}

	RestoreKeyRepeat();
#if MayFullScreen
	UngrabMachine();
#endif
#if MySoundEnabled
	MySound_Stop();
#endif
#if MySoundEnabled
	MySound_UnInit();
#endif
#if IncludePbufs
	UnInitPbufs();
#endif
	UnInitDrives();

	ForceShowCursor();

#if dbglog_HAVE
	dbglog_close();
#endif

	CheckSavedMacMsg();

	CloseMyOpenGLContext();
	CloseMainWindow();

#if MayFullScreen
	My_ShowMenuBar();
#endif

	UnInitCocoaStuff();

	UnallocMyMemory();

	[pool release];
}

int main(int argc, char **argv)
{
	ZapOSGLUVars();

	if (InitOSGLU()) {
		ProgramMain();
	}
	UnInitOSGLU();

	return 0;
}