#ifndef REGIONSTRUCT_H
#define REGIONSTRUCT_H
typedef struct pixman_region16 RegionRec, *RegionPtr;
#include "miscstruct.h"
#define rgnOUT 0
#define rgnIN 1
#define rgnPART 2
#define NullRegion ((RegionPtr)0)
typedef struct pixman_region16_data RegDataRec, *RegDataPtr;
extern BoxRec miEmptyBox;
extern RegDataRec miEmptyData;
extern RegDataRec miBrokenData;
#define REGION_NIL(reg) ((reg)->data && !(reg)->data->numRects)
#define REGION_NAR(reg) ((reg)->data == &miBrokenData)
#define REGION_NUM_RECTS(reg) ((reg)->data ? (reg)->data->numRects : 1)
#define REGION_SIZE(reg) ((reg)->data ? (reg)->data->size : 0)
#define REGION_RECTS(reg) ((reg)->data ? (BoxPtr)((reg)->data + 1) \
: &(reg)->extents)
#define REGION_BOXPTR(reg) ((BoxPtr)((reg)->data + 1))
#define REGION_BOX(reg,i) (®ION_BOXPTR(reg)[i])
#define REGION_TOP(reg) REGION_BOX(reg, (reg)->data->numRects)
#define REGION_END(reg) REGION_BOX(reg, (reg)->data->numRects - 1)
#define REGION_SZOF(n) (sizeof(RegDataRec) + ((n) * sizeof(BoxRec)))
#define REGION_CREATE(_pScreen, _rect, _size) \
miRegionCreate(_rect, _size)
#define REGION_COPY(_pScreen, dst, src) \
miRegionCopy(dst, src)
#define REGION_DESTROY(_pScreen, _pReg) \
miRegionDestroy(_pReg)
#define REGION_INTERSECT(_pScreen, newReg, reg1, reg2) \
miIntersect(newReg, reg1, reg2)
#define REGION_UNION(_pScreen, newReg, reg1, reg2) \
miUnion(newReg, reg1, reg2)
#define REGION_SUBTRACT(_pScreen, newReg, reg1, reg2) \
miSubtract(newReg, reg1, reg2)
#define REGION_INVERSE(_pScreen, newReg, reg1, invRect) \
miInverse(newReg, reg1, invRect)
#define REGION_TRANSLATE(_pScreen, _pReg, _x, _y) \
miTranslateRegion(_pReg, _x, _y)
#define RECT_IN_REGION(_pScreen, _pReg, prect) \
miRectIn(_pReg, prect)
#define POINT_IN_REGION(_pScreen, _pReg, _x, _y, prect) \
miPointInRegion(_pReg, _x, _y, prect)
#define REGION_APPEND(_pScreen, dstrgn, rgn) \
miRegionAppend(dstrgn, rgn)
#define REGION_VALIDATE(_pScreen, badreg, pOverlap) \
miRegionValidate(badreg, pOverlap)
#define BITMAP_TO_REGION(_pScreen, pPix) \
(*(_pScreen)->BitmapToRegion)(pPix)
#define RECTS_TO_REGION(_pScreen, nrects, prect, ctype) \
miRectsToRegion(nrects, prect, ctype)
#define REGION_EQUAL(_pScreen, _pReg1, _pReg2) \
miRegionEqual(_pReg1, _pReg2)
#define REGION_BREAK(_pScreen, _pReg) \
miRegionBreak(_pReg)
#define REGION_INIT(_pScreen, _pReg, _rect, _size) \
{ \
if ((_rect) != NULL) \
{ \
(_pReg)->extents = *(_rect); \
(_pReg)->data = (RegDataPtr)NULL; \
} \
else \
{ \
(_pReg)->extents = miEmptyBox; \
if (((_size) > 1) && ((_pReg)->data = \
(RegDataPtr)xalloc(REGION_SZOF(_size)))) \
{ \
(_pReg)->data->size = (_size); \
(_pReg)->data->numRects = 0; \
} \
else \
(_pReg)->data = &miEmptyData; \
} \
}
#define REGION_UNINIT(_pScreen, _pReg) \
{ \
if ((_pReg)->data && (_pReg)->data->size) { \
xfree((_pReg)->data); \
(_pReg)->data = NULL; \
} \
}
#define REGION_RESET(_pScreen, _pReg, _pBox) \
{ \
(_pReg)->extents = *(_pBox); \
REGION_UNINIT(_pScreen, _pReg); \
(_pReg)->data = (RegDataPtr)NULL; \
}
#define REGION_NOTEMPTY(_pScreen, _pReg) \
!REGION_NIL(_pReg)
#define REGION_BROKEN(_pScreen, _pReg) \
REGION_NAR(_pReg)
#define REGION_EMPTY(_pScreen, _pReg) \
{ \
REGION_UNINIT(_pScreen, _pReg); \
(_pReg)->extents.x2 = (_pReg)->extents.x1; \
(_pReg)->extents.y2 = (_pReg)->extents.y1; \
(_pReg)->data = &miEmptyData; \
}
#define REGION_EXTENTS(_pScreen, _pReg) \
(&(_pReg)->extents)
#define REGION_NULL(_pScreen, _pReg) \
{ \
(_pReg)->extents = miEmptyBox; \
(_pReg)->data = &miEmptyData; \
}
#ifndef REGION_NULL
#define REGION_NULL(_pScreen, _pReg) \
REGION_INIT(_pScreen, _pReg, NullBox, 1)
#endif
extern void InitRegions (void);
extern RegionPtr miRegionCreate(
BoxPtr ,
int );
extern void miRegionInit(
RegionPtr ,
BoxPtr ,
int );
extern void miRegionDestroy(
RegionPtr );
extern void miRegionUninit(
RegionPtr );
extern Bool miRegionCopy(
RegionPtr ,
RegionPtr );
extern Bool miIntersect(
RegionPtr ,
RegionPtr ,
RegionPtr );
extern Bool miUnion(
RegionPtr ,
RegionPtr ,
RegionPtr );
extern Bool miRegionAppend(
RegionPtr ,
RegionPtr );
extern Bool miRegionValidate(
RegionPtr ,
Bool * );
extern RegionPtr miRectsToRegion(
int ,
xRectanglePtr ,
int );
extern Bool miSubtract(
RegionPtr ,
RegionPtr ,
RegionPtr );
extern Bool miInverse(
RegionPtr ,
RegionPtr ,
BoxPtr );
extern int miRectIn(
RegionPtr ,
BoxPtr );
extern void miTranslateRegion(
RegionPtr ,
int ,
int );
extern void miRegionReset(
RegionPtr ,
BoxPtr );
extern Bool miRegionBreak(
RegionPtr );
extern Bool miPointInRegion(
RegionPtr ,
int ,
int ,
BoxPtr );
extern Bool miRegionEqual(
RegionPtr ,
RegionPtr );
extern Bool miRegionNotEmpty(
RegionPtr );
extern void miRegionEmpty(
RegionPtr );
extern BoxPtr miRegionExtents(
RegionPtr );
extern void miPrintRegion(
RegionPtr );
#endif