/*
 	File:		QDOffscreen.h
 
 	Contains:	Quickdraw Offscreen GWorld Interfaces.
 
 	Version:	Technology:	System 7.5
 				Release:	QuickTime 4.0
 
 	Copyright:	(c) 1985-1993, 1995-1998 by Apple Computer, Inc., all rights reserved
 
 	Bugs?:		For bug reports, consult the following page on
 				the World Wide Web:
 
 					http://developer.apple.com/bugreporter/
 
*/
#ifndef __QDOFFSCREEN__
#define __QDOFFSCREEN__

#ifndef __ERRORS__
#include <Errors.h>
#endif
#ifndef __QUICKDRAW__
#include <Quickdraw.h>
#endif



#if PRAGMA_ONCE
#pragma once
#endif

#ifdef __cplusplus
extern "C" {
#endif

#if PRAGMA_IMPORT
#pragma import on
#endif

#if PRAGMA_STRUCT_ALIGN
	#pragma options align=mac68k
#elif PRAGMA_STRUCT_PACKPUSH
	#pragma pack(push, 2)
#elif PRAGMA_STRUCT_PACK
	#pragma pack(2)
#endif


enum {
	pixPurgeBit					= 0,
	noNewDeviceBit				= 1,
	useTempMemBit				= 2,
	keepLocalBit				= 3,
	pixelsPurgeableBit			= 6,
	pixelsLockedBit				= 7,
	mapPixBit					= 16,
	newDepthBit					= 17,
	alignPixBit					= 18,
	newRowBytesBit				= 19,
	reallocPixBit				= 20,
	clipPixBit					= 28,
	stretchPixBit				= 29,
	ditherPixBit				= 30,
	gwFlagErrBit				= 31
};


enum {
	pixPurge					= 1L << pixPurgeBit,
	noNewDevice					= 1L << noNewDeviceBit,
	useTempMem					= 1L << useTempMemBit,
	keepLocal					= 1L << keepLocalBit,
	pixelsPurgeable				= 1L << pixelsPurgeableBit,
	pixelsLocked				= 1L << pixelsLockedBit,
	kAllocDirectDrawSurface		= 1L << 14,
	mapPix						= 1L << mapPixBit,
	newDepth					= 1L << newDepthBit,
	alignPix					= 1L << alignPixBit,
	newRowBytes					= 1L << newRowBytesBit,
	reallocPix					= 1L << reallocPixBit,
	clipPix						= 1L << clipPixBit,
	stretchPix					= 1L << stretchPixBit,
	ditherPix					= 1L << ditherPixBit,
	gwFlagErr					= 1L << gwFlagErrBit
};

/* gdevice attribute bits*/


enum {
	deviceIsIndirect			= (1L << 0),
	deviceNeedsLock				= (1L << 1),
	deviceIsStatic				= (1L << 2),
	deviceIsExternalBuffer		= (1L << 3),
	deviceIsDDSurface			= (1L << 4),
	deviceIsDCISurface			= (1L << 5),
	deviceIsGDISurface			= (1L << 6),
	deviceIsAScreen				= (1L << 7),
	deviceIsOverlaySurface		= (1L << 8)
};

typedef unsigned long 					GWorldFlags;
/* Type definition of a GWorldPtr */
typedef CGrafPtr 						GWorldPtr;
EXTERN_API( QDErr )
NewGWorld						(GWorldPtr *			offscreenGWorld,
								 short 					PixelDepth,
								 const Rect *			boundsRect,
								 CTabHandle 			cTable,
								 GDHandle 				aGDevice,
								 GWorldFlags 			flags)								FOURWORDINLINE(0x203C, 0x0016, 0x0000, 0xAB1D);

#if !TARGET_OS_MAC
#if TARGET_OS_WIN32
EXTERN_API( void *)
GetGDeviceSurface				(GDHandle 				gdh);

EXTERN_API( unsigned long )
GetGDeviceAttributes			(GDHandle 				gdh);

/* to allocate non-mac-rgb GWorlds use QTNewGWorld (ImageCompression.h) */
EXTERN_API( QDErr )
NewGWorldFromHBITMAP			(GWorldPtr *			offscreenGWorld,
								 CTabHandle 			cTable,
								 GDHandle 				aGDevice,
								 GWorldFlags 			flags,
								 void *					newHBITMAP,
								 void *					newHDC);

#endif  /* TARGET_OS_WIN32 */

EXTERN_API( QDErr )
NewGWorldFromPtr				(GWorldPtr *			offscreenGWorld,
								 unsigned long 			PixelFormat,
								 const Rect *			boundsRect,
								 CTabHandle 			cTable,
								 GDHandle 				aGDevice,
								 GWorldFlags 			flags,
								 Ptr 					newBuffer,
								 long 					rowBytes);

#endif  /* !TARGET_OS_MAC */

EXTERN_API( Boolean )
LockPixels						(PixMapHandle 			pm)									FOURWORDINLINE(0x203C, 0x0004, 0x0001, 0xAB1D);

EXTERN_API( void )
UnlockPixels					(PixMapHandle 			pm)									FOURWORDINLINE(0x203C, 0x0004, 0x0002, 0xAB1D);

EXTERN_API( GWorldFlags )
UpdateGWorld					(GWorldPtr *			offscreenGWorld,
								 short 					pixelDepth,
								 const Rect *			boundsRect,
								 CTabHandle 			cTable,
								 GDHandle 				aGDevice,
								 GWorldFlags 			flags)								FOURWORDINLINE(0x203C, 0x0016, 0x0003, 0xAB1D);

EXTERN_API( void )
DisposeGWorld					(GWorldPtr 				offscreenGWorld)					FOURWORDINLINE(0x203C, 0x0004, 0x0004, 0xAB1D);

EXTERN_API( void )
GetGWorld						(CGrafPtr *				port,
								 GDHandle *				gdh)								FOURWORDINLINE(0x203C, 0x0008, 0x0005, 0xAB1D);

EXTERN_API( void )
SetGWorld						(CGrafPtr 				port,
								 GDHandle 				gdh)								FOURWORDINLINE(0x203C, 0x0008, 0x0006, 0xAB1D);

EXTERN_API( void )
CTabChanged						(CTabHandle 			ctab)								FOURWORDINLINE(0x203C, 0x0004, 0x0007, 0xAB1D);

EXTERN_API( void )
PixPatChanged					(PixPatHandle 			ppat)								FOURWORDINLINE(0x203C, 0x0004, 0x0008, 0xAB1D);

EXTERN_API( void )
PortChanged						(GrafPtr 				port)								FOURWORDINLINE(0x203C, 0x0004, 0x0009, 0xAB1D);

EXTERN_API( void )
GDeviceChanged					(GDHandle 				gdh)								FOURWORDINLINE(0x203C, 0x0004, 0x000A, 0xAB1D);

EXTERN_API( void )
AllowPurgePixels				(PixMapHandle 			pm)									FOURWORDINLINE(0x203C, 0x0004, 0x000B, 0xAB1D);

EXTERN_API( void )
NoPurgePixels					(PixMapHandle 			pm)									FOURWORDINLINE(0x203C, 0x0004, 0x000C, 0xAB1D);

EXTERN_API( GWorldFlags )
GetPixelsState					(PixMapHandle 			pm)									FOURWORDINLINE(0x203C, 0x0004, 0x000D, 0xAB1D);

EXTERN_API( void )
SetPixelsState					(PixMapHandle 			pm,
								 GWorldFlags 			state)								FOURWORDINLINE(0x203C, 0x0008, 0x000E, 0xAB1D);

EXTERN_API( Ptr )
GetPixBaseAddr					(PixMapHandle 			pm)									FOURWORDINLINE(0x203C, 0x0004, 0x000F, 0xAB1D);

EXTERN_API( QDErr )
NewScreenBuffer					(const Rect *			globalRect,
								 Boolean 				purgeable,
								 GDHandle *				gdh,
								 PixMapHandle *			offscreenPixMap)					FOURWORDINLINE(0x203C, 0x000E, 0x0010, 0xAB1D);

EXTERN_API( void )
DisposeScreenBuffer				(PixMapHandle 			offscreenPixMap)					FOURWORDINLINE(0x203C, 0x0004, 0x0011, 0xAB1D);

EXTERN_API( GDHandle )
GetGWorldDevice					(GWorldPtr 				offscreenGWorld)					FOURWORDINLINE(0x203C, 0x0004, 0x0012, 0xAB1D);

EXTERN_API( Boolean )
QDDone							(GrafPtr 				port)								FOURWORDINLINE(0x203C, 0x0004, 0x0013, 0xAB1D);

EXTERN_API( long )
OffscreenVersion				(void)														TWOWORDINLINE(0x7014, 0xAB1D);

EXTERN_API( QDErr )
NewTempScreenBuffer				(const Rect *			globalRect,
								 Boolean 				purgeable,
								 GDHandle *				gdh,
								 PixMapHandle *			offscreenPixMap)					FOURWORDINLINE(0x203C, 0x000E, 0x0015, 0xAB1D);

EXTERN_API( Boolean )
PixMap32Bit						(PixMapHandle 			pmHandle)							FOURWORDINLINE(0x203C, 0x0004, 0x0016, 0xAB1D);

EXTERN_API( PixMapHandle )
GetGWorldPixMap					(GWorldPtr 				offscreenGWorld)					FOURWORDINLINE(0x203C, 0x0004, 0x0017, 0xAB1D);



#if PRAGMA_STRUCT_ALIGN
	#pragma options align=reset
#elif PRAGMA_STRUCT_PACKPUSH
	#pragma pack(pop)
#elif PRAGMA_STRUCT_PACK
	#pragma pack()
#endif

#ifdef PRAGMA_IMPORT_OFF
#pragma import off
#elif PRAGMA_IMPORT
#pragma import reset
#endif

#ifdef __cplusplus
}
#endif

#endif /* __QDOFFSCREEN__ */

