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/* **********************************************************
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* Copyright (C) 2002 VMware, Inc.
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* **********************************************************/
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/* $Xorg: regionstr.h,v 1.4 2001/02/09 02:05:15 xorgcvs Exp $ */
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/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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******************************************************************/
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/* $XFree86: xc/programs/Xserver/include/regionstr.h,v 1.7 2001/12/14 19:59:56 dawes Exp $ */
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* Interface definition for miRegion operations. Originally from X11
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* source distribution. This version includes modifications made for the
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* VNC Reflector package.
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* 07/21/2003 rrdharan - added miRegionArea function prototype
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* - added REGION_AREA wrapper macro
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* - added this header, removed whitespace
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* 08/02/2005 akan - fixed conflicting definition of MINSHORT
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* and MAXSHORT with winnt.h
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* 04/03/2007 shelleygong - use int instead of short for data
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* lib/region has terrible short/long confusion problems. For MSFT,
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* disable the warning. See PR142264.
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#pragma warning( disable: 4242 )
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/* Return values from RectIn() */
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#define NullBox ((BoxPtr)0)
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#define NullRegion ((RegionPtr)0)
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#define R_MAXSHORT 32767
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#define R_MINSHORT (-R_MAXSHORT)
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#define R_MAXINT 0x7FFFFFFF
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#define R_MININT 0x8FFFFFFF
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#define CT_YXBANDED 18
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#define xalloc(n) malloc(n)
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#define xrealloc(ptr, n) realloc((ptr), (n))
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#define xfree(ptr) free(ptr)
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typedef struct RectInfo {
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/* add more here, then update miRectInfosEqual and miPrintRegion. */
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} RectInfo, *RectInfoPtr;
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#define RECTINFO_ISVALID(info) \
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((info).type >= UpdateRect && (info).type < MaxRect)
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typedef struct _Box {
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typedef struct _xPoint {
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} xPoint, *xPointPtr;
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typedef xPoint DDXPointRec, *DDXPointPtr;
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typedef struct _xRectangle {
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unsigned short width, height;
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} xRectangle, *xRectanglePtr;
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typedef struct _RegData {
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/* BoxRec rects[size]; in memory but not explicitly declared */
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} RegDataRec, *RegDataPtr;
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typedef struct _Region {
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} RegionRec, *RegionPtr;
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extern BoxRec miEmptyBox;
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extern RegDataRec miEmptyData;
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extern RegDataRec miBrokenData;
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#define REGION_EXTENTS(reg) (&(reg)->extents)
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#define REGION_NIL(reg) ((reg)->data && !(reg)->data->numRects)
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#define REGION_NAR(reg) ((reg)->data == &miBrokenData)
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#define REGION_NUM_RECTS(reg) ((reg)->data ? (reg)->data->numRects : 1)
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#define REGION_SIZE(reg) ((reg)->data ? (reg)->data->size : 0)
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#define REGION_RECTS(reg) ((reg)->data ? (BoxPtr)((reg)->data + 1) \
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#define REGION_BOXPTR(reg) ((BoxPtr)((reg)->data + 1))
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#define REGION_BOX(reg,i) (®ION_BOXPTR(reg)[i])
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#define REGION_TOP(reg) REGION_BOX(reg, (reg)->data->numRects)
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#define REGION_END(reg) REGION_BOX(reg, (reg)->data->numRects - 1)
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#define REGION_SZOF(n) (sizeof(RegDataRec) + ((n) * sizeof(BoxRec)))
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#define REGION_VALIDINDEX(reg, i) (i >= 0 && i < REGION_NUM_RECTS((reg)))
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#define RECT_SETBOX(r, rx, ry, rw, rh) do { \
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(r)->x2 = (rx) + (rw); \
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(r)->y2 = (ry) + (rh); \
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(r)->info.type = UpdateRect; \
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#define RECT_SETRECT(r, rx1, ry1, rx2, ry2) do { \
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RECT_SETBOX((r), (rx1), (ry1), ((rx2) - (rx1)), ((ry2) - (ry1))); \
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* This will only work if the intersection is not empty.
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#define RECT_INTERSECT(r, r1, r2) \
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(r)->x1 = MAX((r1)->x1, (r2)->x1); \
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(r)->x2 = MIN((r1)->x2, (r2)->x2); \
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(r)->y1 = MAX((r1)->y1, (r2)->y1); \
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(r)->y2 = MIN((r1)->y2, (r2)->y2); \
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* True iff the two boxes overlap.
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#define RECT_EXTENTCHECK(r1, r2) \
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(!( ((r1)->x2 <= (r2)->x1) || \
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((r1)->x1 >= (r2)->x2) || \
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((r1)->y2 <= (r2)->y1) || \
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((r1)->y1 >= (r2)->y2) ) )
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* True iff both the BoxRecs are identical.
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#define RECT_IDENTICAL(r1, r2) \
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(( ((r1)->x1 == (r2)->x1) && \
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((r1)->x2 == (r2)->x2) && \
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((r1)->y1 == (r2)->y1) && \
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((r1)->y2 == (r2)->y2) ) )
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extern RegionPtr miRegionCreate(BoxPtr rect, int size);
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extern void miRegionInit(RegionPtr pReg, BoxPtr rect, int size);
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extern void miRegionDestroy(RegionPtr pReg);
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extern void miRegionUninit(RegionPtr pReg);
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extern Bool miRegionCopy(RegionPtr dst, RegionPtr src);
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extern Bool miIntersect(RegionPtr newReg, RegionPtr reg1, RegionPtr reg2);
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extern Bool miUnion(RegionPtr newReg, RegionPtr reg1, RegionPtr reg2);
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extern Bool miRegionAppend(RegionPtr dstrgn, RegionPtr rgn);
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extern Bool miRegionValidate(RegionPtr badreg, Bool *pOverlap);
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extern RegionPtr miRectsToRegion(int nrects, xRectanglePtr prect, int ctype);
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extern RegionPtr miRectsToRegionbyBoundary(int nrects, xRectanglePtr prect, int ctype,
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int minValue, int maxValue);
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extern Bool miSubtract(RegionPtr regD, RegionPtr regM, RegionPtr regS);
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extern Bool miInverse(RegionPtr newReg, RegionPtr reg1, BoxPtr invRect);
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extern int miRectIn(RegionPtr region, BoxPtr prect);
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extern void miTranslateRegion(RegionPtr pReg, int x, int y);
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extern void miTranslateRegionByBoundary(RegionPtr pReg, int x, int y,
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int minValue, int maxValue);
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extern void miRegionReset(RegionPtr pReg, BoxPtr pBox);
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extern Bool miRegionBreak(RegionPtr pReg);
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extern Bool miPointInRegion(RegionPtr pReg, int x, int y, BoxPtr box);
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extern Bool miRegionNotEmpty(RegionPtr pReg);
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extern void miRegionEmpty(RegionPtr pReg);
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extern Bool miRegionsEqual(RegionPtr reg1, RegionPtr reg2);
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extern BoxPtr miRegionExtents(RegionPtr pReg);
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extern int miRegionArea(RegionPtr pReg);
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extern void miRegionPack(RegionPtr pReg, int threshold);
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extern Bool miApplyRect(RegionPtr newReg, RegionPtr reg, BoxPtr rect,
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Bool (*op) (RegionPtr, RegionPtr, RegionPtr));
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extern int miPrintRegion(RegionPtr rgn);
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typedef Bool (*miRegionMatchFunc)(BoxPtr box, uintptr_t userData);
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extern Bool miRegionMatch(RegionPtr newReg, RegionPtr reg,
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miRegionMatchFunc match, uintptr_t userData);
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// Extension to REGION_NIL that also checks for a 0 x 0 bounding rect.
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extern Bool miIsRegionVoid(RegionPtr pReg);
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#endif /* __REGION_H__ */
added
removed
lib/include/region.h
