wine/include/region.h
Alexandre Julliard a0d77315e4 Release 980913
Fri Sep 11 13:14:35 1998  Andreas Mohr <100.30936@germany.net>

	* [files/file.c] [include/file.h]
	Fixed SetFilePointer to allow negative positions as in DOS.

	* [graphics/ddraw.c]
	Added some methods to IDirect3D.

	* [ole/compobj.c] [if1632/compobj.spec]
	Added/implemented CoCreateStandardMalloc16,
	CoGetClassObject, CoCreateInstance,
	LookupETask, SetETask, CoGetState16.

	* [loader/task.c]
	MakeProcInstance: return 0 if func == NULL.

	* [*/*] [tools/winapi-check]
	Added zillions of missing WINAPI's and __cdecl's.
	(oops, several caused by myself)
	Wrote script for automated checking.

	* [if1632/compobj.spec]
	Many stub names.

	* [misc/ddeml.c] [ole/compobj.c]
	Some stubs.

Tue Sep  9 21:36:48 1998  Anders Carlsson <anders.carlsson@linux.nu>

	* [dlls/comctl32/Makefile.in] [dlls/comctl32/commctrl.c]
	  [dlls/comctl32/tab.c] [include/commctrl.h] [include/tab.h]
        Added preliminary tab control support.

Sat Sep  5 16:27:20 1998  Huw D M Davies <daviesh@abacus.physics.ox.ac.uk>

	* [graphics/psdrv/*]
	More changes to the PostScript driver:
	Implemented pens and solid brushes.
	Colour/greyscale for fonts, pens and brushes.
	To get coloured output you need to have *ColorDevice set to true
	in your PPD, otherwise you'll get greyscale.
	Landscape mode now works, as does non-A4 page sizes.
	Encoding of fonts to ANSI is better, Symbol works again.

	* [objects/dc.c] [include/gdi.h] [*/*]
	Moved dc->w.{text,background}Pixel to X11DRV_PDEVICE where they
	belong.

Sat Sep  5 05:12:09 1998  Ove Kaaven <ovek@arcticnet.no>

	* [include/dosexe.h] [include/miscemu.h] [include/msdos.h]
	  [loader/dos/dosvm.c] [loader/dos/module.c] [msdos/dpmi.c]
	  [msdos/int2f.c] [msdos/interrupts.c]
	Fixed portability. Adapted some code to make it easier to
	integrate the DOS subsystem with the DPMI subsystem, made
	the DPMI simulated real-mode interrupts be handled the V86
	way. Added support for .COM files. Made int2f DPMI check
	fail, to avoid pkunzip crashing in attempting to use DPMI.
	Generally moved stuff around a little.
	It is now technically possible to load several DOS programs
	into the same memory space. Not tested, though.

Fri Sep  4 21:40:45 1998  Marcus Meissner <marcus@jet.franken.de>

	* [if1632/kernel.spec]
	Changed 500-53x stubnames accordingly to nt3.51 krnl386.exe.

	* [win32/except.c]
	Fixed one bad program behaviour, (deleting SEH while in 
	first walk). RtlUnwind is broken too I think (it should unwind
	on success, not while walking the exception chain).

	* [ole/ole2nls.c]
	Get*DefaultLCID  returns 0x400|id. expected by one application.

	* [if1632/snoop.c]
	Handle non-standard SP returns more graceful.

	* [windows/class.c]
	hinstances are mostly irrelevant for win32.

	* [memory/string.c] [misc/registry.c]
	lstrcmpi32W: use toupper for characters < 0x100. (speedup hack
	for registry.c)
	Some small speedup hacks for registry.c

Thu Sep  3 20:40:16 1998  Eric Kohl <ekohl@abo.rhein-zeitung.de>

	* [Makefile.in][configure][configure.in][dlls/Makefile.in]
	  [dlls/comctl32/Makefile.in]
	Created dlls/comctl32 and moved the common controls stuff to it.

	* [misc/version.c]
	Removed COMCTL32_DllGetVersion. The fixed function is part
	of the common controls stuff.

	* [dlls/comctl32/*.c][include/commctrl.h]
	Added structure size tests.

	* [dlls/comctl32/toolbar.c]
	Fixed a bug in TOOLBAR_GetMaxWidth().

	* [dlls/comctl32/animate.c][include/animate.h]
	  [dlls/comctl32/comboex.c][include/comboex.h]
	  [dlls/comctl32/hotkey.c][include/hotkey.h]
	  [dlls/comctl32/listview.c][include/listview.h]
	  [dlls/comctl32/commctrl.c][include/commctrl.h]
	New files. Added Animation, ComboBoxEx, Hotkey and
	Listview control dummies.

	* [dlls/comctl32/tooltips.c]
	Fixed a display bug and font selection.

	* [dlls/comctl32/comctl32undoc.c][include/commctrl.h]
	Added missing DPA functions. Fixed bugs and published the
	function prototypes.

	* [documentation/common_controls]
	Updated.

Wed Sep  2 15:43:45 1998  Patrik Stridvall <ps@leissner.se>

	* [AUTHORS] [include/authors.h]
	Added myself as a Wine author.

	* [memory/virtual.c] [objects/dc.c]
	Fixed runtime errors for Solaris.

	* [misc/ddeml.c] [objects/gdiobj.c]
	Minor fixes.

	* [win32/device.c]
	Added stubs for IFSMgr VxDCall and
	a partial implementation of IFSMgr DeviceIo.

	* [relay32/Makefile.in] [relay32/builtin32.c] [relay32/imm32.spec] 
	  [relay32/msnet32.spec] [relay32/oledlg.spec]
	Added new spec files for IMM32.DLL, MSNET32.DLL, OLEDLG.DLL.

	* [misc/Makefile.in] [misc/imm.c] [include/imm.h]
	Added news files for implementation of IMM32.DLL. 
	All functions return 0 as is correct for all Western Languages.

	* [ole/Makefile.in] [ole/oledlg.c] [include/oledlg.h]
	Added new files for implementation of OLEDLG.DLL.
	Added stubs with FIXME:s for all functions.

Wed Sep  2 10:50:00 1998  Juergen Schmied <juergen.schmied@metronet.de>

	* [dlls/shell32/contmenu.c][dlls/shell32/shellole.c]
	  [dlls/shell32/shlfolder.c][dlls/shell32/shlview.c]
	  [documentation/shell32][include/shell.h]
	Clean up, bugfixes.
	
	* [dlls/shell32/enumidlist.c]
	Fileattributes implemented.
	
	* [dlls/shell32/pidl.c]
	Class pidlmgr splited into functions, structures changed, 
	some functions rewritten.

	* [dlls/shell32/shell32_main.c]
	Small changes and bugfixes SHGetFileInfoA, SHGetSpecialFolderLocation.
	
	* [dlls/shell32/shellord.c][relay32/shell32.spec]
	Parameter documented, implemented SHCloneSpecialIDList.
	Stub improved ShellExecuteEx32A.
	New stubs SHFind_InitMenuPopup, FileMenu_InitMenuPopup, 
	FileMenu_Create, FileMenu_TrackPopupMenuEx, SHWinHelp,
	SHRunConrolPanel, DAD_ShowDragImage, FileMenu_Destroy,
	SHGetDataFromIDListA, SHFileOperationA.
	
	* [include/winnls.h][include/ole2nls.c]
	TIME_FORCE24HOURFORMAT, TIME_NOTIMEMARKER implemented
	in OLE_GetFormatA, GetTimeFormat32A.
	
	* [win32/code_page.c]
	WideCharToMultiByte: parameter checking and returning of strlen
	implemented.
	
	* [windows/keyboard.c][windows/defwnd.c]
	Debug messages added.
	
	* [windows/win.c]
	WIN_SetWindowLong GWL_STYLE and GWL_EXSTYLE implemented.

	* [controls/menu.c]
	Missing line added.

	* [include/winerror.h]
	Macros for SUCCEEDED and FAILED added.

Mon Aug 31 00:55:31 1998  Ulrich Weigand <weigand@informatik.uni-erlangen.de>

	* [loader/module.c]
	Bugfix: LoadModule16 should *not* call LoadModule32.

	* [files/dos_fs.c]
	Bugfix: don't crash if given directory doesn't exist.

Sat Aug 29 15:00:49 1998  Turchanov Sergey <turchanov@usa.net>

	* [include/mmsystem.h][multimedia/mmsystem.c][relay32/winmm.spec]
	Almost completed implementation of [snd]PlaySound (except
	flags SND_ALIAS_ID and SND_APPLICATION).

	* [if1632/user.spec][windows/winpos.c]
	Added SetWindowRgn16 stub.

Sat Aug 29 02:53:31 1998  Alexander Lukyanov <lav@long.yar.ru>

	* [files/drive.c]
	GetDriveType32A: return DRIVE_DOESNOTEXIST in case of non
	existent drive.

	* [msdos/int21.c]
	INT21_FindFirstFCB: check drive validity to prevent oops.

	* [win32/file.c]
	CreateFile32A: duplicate STD_{INPUT,OUTPUT}_HANDLE.

	* [files/dos_fs.c]
	Make DOSFS_OpenDir treat "" as "/".
	DOSFS_OpenDevice: duplicate STD_{INPUT,OUTPUT}_HANDLE.

	* [windows/dialog.c]
	GetNextDlgTabItem32: use last/first item instead of first/last
	when hwndCtrl==0. This fixes initial focus.

Sat Aug 29 02:46:32 1998  Adrian Harvey <adrian@select.com.au>

	* [include/process.h] [include/process.c]
	Renamed PROCESS_SELF to CURRENT_PROCESS_PSEUDOHANDLE in line
	with thread constant, and Win32 documentation (which calls it
	a pseudohandle.)  Made GetCurrentProcess actually use this
	constant instead of the value.

	* [include/process.h] [include/thread.h] [scheduler/thread.c]
	  [scheduler/process.c] [scheduler/handle.c]
	Modify HANDLE_GetObjPtr to understand about
	CURRENT_THREAD_PSEUDOHANDLE and CURRENT_PROCESS_PSEUDOHANDLE.
	This allows DuplicateHandle to do the correct thing with these
	handles.  Removed now duplicate functionality from THREAD_GetPtr
	and PROCESS_GetPtr.

	* [loader/ne/segment.c]
	Fixed two places where HFILE32s were being created and passed to
	16-bit code. This should unbreak NE self-loading code.
	Added two casts to remove compile time warnings.

Fri Aug 28 21:04:13 1998  Joseph Pranevich <knight@baltimore.wwaves.com>

	* [msdos/dosmem.c] [msdos/int2f.c]
	Added beginnings of DOS error table.

	* [msdos/int1a.c]
	Stub for subfunction 0xb0.

	* [msdos/int10.c] [loader/dos/dosvm.c]
	INT 10 support completely rewritten and lots of debugging
	added. Now, DOS apps that use INT 10 to write to the screen will
	work. (Beyond Zork does, at least. Somewhat.)

	* [include/miscemu.h] [msdos/dosmem.c] [msdos/int21.c]
	Another shot at getting MS's generic error message facility
	right.

	* [msdos/int21.c]
	Command.Com wanted to set its own PSP address. I let it.

Wed Aug 26 12:26:20 1998  Matthew Toseland <Matthew.Toseland@btinternet.com>

	* [include/file.h] [misc/lzexpand.c]
	Fixed LZCopy16 by fixing HFILE16/HFILE32 convertor macros so don't
	convert lzw handles.

Tue Aug 25 22:22:55 1998  Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>

	* [misc/registry.c]
	In RegEnumvalue, ivalue == 0 is a legal request and should
	return the first entry.

	* [msdos/int21.c]
	Add handling for Int21-48/49 in Win16. Makes blinker demo work.

	* [windows/winproc.c]
	Add Msg32A<->Msg32W translation for LB_ADDSTRING.

Tue Aug 25 21:03:31 1998  Kristian Nielsen  <kristian.nielsen@risoe.dk>

	* [windows/win.c]
	Fix for SetParent(): MS Windows 3.11 does not clear the WS_CHILD
	flag when a child window is reparented to the desktop window.

Mon Aug 24 20:55:22 1998  Berend Reitsma <berend at asset-control dot com>

	* [controls/menu.c]
	Menus created with SetMenuItemInfo and InsertMenuItem should
	work now.

Sun Aug 23 23:23:23 1998  Alex Korobka <korobka@ams.sunysb.edu>

	* [controls/combo.c]
	Added CB_GETITEMHEIGHT.

	* [windows/winpos.c] 
	WM_NCHITTEST, SWP_FRAMECHANGED bugfixes.

Sat Aug 22 21:15:29 1998 Alex Priem <alexp@sci.kun.nl>

	* [files/profile.c] [include/windows.h]
	Added GetPrivateProfileSectionNames[AW],GetPrivateProfileSectionW,
	GetPrivateProfileStructW, GetProfileSectionW,
	WriteProfileSection[AW], WritePrivateProfileStructW.
1998-09-13 16:32:00 +00:00

387 lines
13 KiB
C

/*
* GDI region definitions
* Mainly taken from the X11 distribution.
* Modifications: Copyright 1998 Huw Davies
*/
/************************************************************************
Copyright (c) 1987 X Consortium
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of the X Consortium shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the X Consortium.
Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of Digital not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
************************************************************************/
#ifndef __WINE_REGION_H
#define __WINE_REGION_H
#include "windows.h"
#include "gdi.h"
typedef struct {
INT32 size;
INT32 numRects;
INT32 type; /* NULL, SIMPLE or COMPLEX */
RECT32 *rects;
RECT32 extents;
} WINEREGION;
/* GDI logical region object */
typedef struct
{
GDIOBJHDR header;
WINEREGION *rgn;
} RGNOBJ;
/* 1 if two RECTs overlap.
* 0 if two RECTs do not overlap.
*/
#define EXTENTCHECK(r1, r2) \
((r1)->right > (r2)->left && \
(r1)->left < (r2)->right && \
(r1)->bottom > (r2)->top && \
(r1)->top < (r2)->bottom)
/*
* Check to see if there is enough memory in the present region.
*/
#define MEMCHECK(reg, rect, firstrect){\
if ((reg)->numRects >= ((reg)->size - 1)){\
(firstrect) = HeapReAlloc( SystemHeap, 0, \
(firstrect), (2 * (sizeof(RECT32)) * ((reg)->size)));\
if ((firstrect) == 0)\
return;\
(reg)->size *= 2;\
(rect) = &(firstrect)[(reg)->numRects];\
}\
}
#define EMPTY_REGION(pReg) { \
(pReg)->numRects = 0; \
(pReg)->extents.left = (pReg)->extents.top = 0; \
(pReg)->extents.right = (pReg)->extents.bottom = 0; \
(pReg)->type = NULLREGION; \
}
#define REGION_NOT_EMPTY(pReg) pReg->numRects
#define INRECT(r, x, y) \
( ( ((r).right > x)) && \
( ((r).left <= x)) && \
( ((r).bottom > y)) && \
( ((r).top <= y)) )
/*
* number of points to buffer before sending them off
* to scanlines() : Must be an even number
*/
#define NUMPTSTOBUFFER 200
/*
* used to allocate buffers for points and link
* the buffers together
*/
typedef struct _POINTBLOCK {
POINT32 pts[NUMPTSTOBUFFER];
struct _POINTBLOCK *next;
} POINTBLOCK;
/*
* This file contains a few macros to help track
* the edge of a filled object. The object is assumed
* to be filled in scanline order, and thus the
* algorithm used is an extension of Bresenham's line
* drawing algorithm which assumes that y is always the
* major axis.
* Since these pieces of code are the same for any filled shape,
* it is more convenient to gather the library in one
* place, but since these pieces of code are also in
* the inner loops of output primitives, procedure call
* overhead is out of the question.
* See the author for a derivation if needed.
*/
/*
* In scan converting polygons, we want to choose those pixels
* which are inside the polygon. Thus, we add .5 to the starting
* x coordinate for both left and right edges. Now we choose the
* first pixel which is inside the pgon for the left edge and the
* first pixel which is outside the pgon for the right edge.
* Draw the left pixel, but not the right.
*
* How to add .5 to the starting x coordinate:
* If the edge is moving to the right, then subtract dy from the
* error term from the general form of the algorithm.
* If the edge is moving to the left, then add dy to the error term.
*
* The reason for the difference between edges moving to the left
* and edges moving to the right is simple: If an edge is moving
* to the right, then we want the algorithm to flip immediately.
* If it is moving to the left, then we don't want it to flip until
* we traverse an entire pixel.
*/
#define BRESINITPGON(dy, x1, x2, xStart, d, m, m1, incr1, incr2) { \
int dx; /* local storage */ \
\
/* \
* if the edge is horizontal, then it is ignored \
* and assumed not to be processed. Otherwise, do this stuff. \
*/ \
if ((dy) != 0) { \
xStart = (x1); \
dx = (x2) - xStart; \
if (dx < 0) { \
m = dx / (dy); \
m1 = m - 1; \
incr1 = -2 * dx + 2 * (dy) * m1; \
incr2 = -2 * dx + 2 * (dy) * m; \
d = 2 * m * (dy) - 2 * dx - 2 * (dy); \
} else { \
m = dx / (dy); \
m1 = m + 1; \
incr1 = 2 * dx - 2 * (dy) * m1; \
incr2 = 2 * dx - 2 * (dy) * m; \
d = -2 * m * (dy) + 2 * dx; \
} \
} \
}
#define BRESINCRPGON(d, minval, m, m1, incr1, incr2) { \
if (m1 > 0) { \
if (d > 0) { \
minval += m1; \
d += incr1; \
} \
else { \
minval += m; \
d += incr2; \
} \
} else {\
if (d >= 0) { \
minval += m1; \
d += incr1; \
} \
else { \
minval += m; \
d += incr2; \
} \
} \
}
/*
* This structure contains all of the information needed
* to run the bresenham algorithm.
* The variables may be hardcoded into the declarations
* instead of using this structure to make use of
* register declarations.
*/
typedef struct {
INT32 minor_axis; /* minor axis */
INT32 d; /* decision variable */
INT32 m, m1; /* slope and slope+1 */
INT32 incr1, incr2; /* error increments */
} BRESINFO;
#define BRESINITPGONSTRUCT(dmaj, min1, min2, bres) \
BRESINITPGON(dmaj, min1, min2, bres.minor_axis, bres.d, \
bres.m, bres.m1, bres.incr1, bres.incr2)
#define BRESINCRPGONSTRUCT(bres) \
BRESINCRPGON(bres.d, bres.minor_axis, bres.m, bres.m1, bres.incr1, bres.incr2)
/*
* These are the data structures needed to scan
* convert regions. Two different scan conversion
* methods are available -- the even-odd method, and
* the winding number method.
* The even-odd rule states that a point is inside
* the polygon if a ray drawn from that point in any
* direction will pass through an odd number of
* path segments.
* By the winding number rule, a point is decided
* to be inside the polygon if a ray drawn from that
* point in any direction passes through a different
* number of clockwise and counter-clockwise path
* segments.
*
* These data structures are adapted somewhat from
* the algorithm in (Foley/Van Dam) for scan converting
* polygons.
* The basic algorithm is to start at the top (smallest y)
* of the polygon, stepping down to the bottom of
* the polygon by incrementing the y coordinate. We
* keep a list of edges which the current scanline crosses,
* sorted by x. This list is called the Active Edge Table (AET)
* As we change the y-coordinate, we update each entry in
* in the active edge table to reflect the edges new xcoord.
* This list must be sorted at each scanline in case
* two edges intersect.
* We also keep a data structure known as the Edge Table (ET),
* which keeps track of all the edges which the current
* scanline has not yet reached. The ET is basically a
* list of ScanLineList structures containing a list of
* edges which are entered at a given scanline. There is one
* ScanLineList per scanline at which an edge is entered.
* When we enter a new edge, we move it from the ET to the AET.
*
* From the AET, we can implement the even-odd rule as in
* (Foley/Van Dam).
* The winding number rule is a little trickier. We also
* keep the EdgeTableEntries in the AET linked by the
* nextWETE (winding EdgeTableEntry) link. This allows
* the edges to be linked just as before for updating
* purposes, but only uses the edges linked by the nextWETE
* link as edges representing spans of the polygon to
* drawn (as with the even-odd rule).
*/
/*
* for the winding number rule
*/
#define CLOCKWISE 1
#define COUNTERCLOCKWISE -1
typedef struct _EdgeTableEntry {
INT32 ymax; /* ycoord at which we exit this edge. */
BRESINFO bres; /* Bresenham info to run the edge */
struct _EdgeTableEntry *next; /* next in the list */
struct _EdgeTableEntry *back; /* for insertion sort */
struct _EdgeTableEntry *nextWETE; /* for winding num rule */
int ClockWise; /* flag for winding number rule */
} EdgeTableEntry;
typedef struct _ScanLineList{
INT32 scanline; /* the scanline represented */
EdgeTableEntry *edgelist; /* header node */
struct _ScanLineList *next; /* next in the list */
} ScanLineList;
typedef struct {
INT32 ymax; /* ymax for the polygon */
INT32 ymin; /* ymin for the polygon */
ScanLineList scanlines; /* header node */
} EdgeTable;
/*
* Here is a struct to help with storage allocation
* so we can allocate a big chunk at a time, and then take
* pieces from this heap when we need to.
*/
#define SLLSPERBLOCK 25
typedef struct _ScanLineListBlock {
ScanLineList SLLs[SLLSPERBLOCK];
struct _ScanLineListBlock *next;
} ScanLineListBlock;
/*
*
* a few macros for the inner loops of the fill code where
* performance considerations don't allow a procedure call.
*
* Evaluate the given edge at the given scanline.
* If the edge has expired, then we leave it and fix up
* the active edge table; otherwise, we increment the
* x value to be ready for the next scanline.
* The winding number rule is in effect, so we must notify
* the caller when the edge has been removed so he
* can reorder the Winding Active Edge Table.
*/
#define EVALUATEEDGEWINDING(pAET, pPrevAET, y, fixWAET) { \
if (pAET->ymax == y) { /* leaving this edge */ \
pPrevAET->next = pAET->next; \
pAET = pPrevAET->next; \
fixWAET = 1; \
if (pAET) \
pAET->back = pPrevAET; \
} \
else { \
BRESINCRPGONSTRUCT(pAET->bres); \
pPrevAET = pAET; \
pAET = pAET->next; \
} \
}
/*
* Evaluate the given edge at the given scanline.
* If the edge has expired, then we leave it and fix up
* the active edge table; otherwise, we increment the
* x value to be ready for the next scanline.
* The even-odd rule is in effect.
*/
#define EVALUATEEDGEEVENODD(pAET, pPrevAET, y) { \
if (pAET->ymax == y) { /* leaving this edge */ \
pPrevAET->next = pAET->next; \
pAET = pPrevAET->next; \
if (pAET) \
pAET->back = pPrevAET; \
} \
else { \
BRESINCRPGONSTRUCT(pAET->bres); \
pPrevAET = pAET; \
pAET = pAET->next; \
} \
}
extern BOOL32 REGION_DeleteObject( HRGN32 hrgn, RGNOBJ * obj );
extern BOOL32 REGION_UnionRectWithRgn( HRGN32 hrgn, const RECT32 *lpRect );
extern BOOL32 REGION_FrameRgn( HRGN32 dest, HRGN32 src, INT32 x, INT32 y );
extern BOOL32 REGION_LPTODP( HDC32 hdc, HRGN32 hDest, HRGN32 hSrc );
#endif /* __WINE_REGION_H */