x11include/xorg-server-1.16.0/regionstr.h

61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/***********************************************************
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61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncCopyright 1987, 1998  The Open Group
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61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncdocumentation for any purpose and without fee is hereby granted,
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61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync******************************************************************/
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#ifndef REGIONSTRUCT_H
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGIONSTRUCT_H
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsynctypedef struct pixman_region16 RegionRec, *RegionPtr;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#include "miscstruct.h"
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* Return values from RectIn() */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define rgnOUT 0
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define rgnIN  1
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define rgnPART 2
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define NullRegion ((RegionPtr)0)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/*
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *   clip region
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsynctypedef struct pixman_region16_data RegDataRec, *RegDataPtr;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT BoxRec RegionEmptyBox;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT RegDataRec RegionEmptyData;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT RegDataRec RegionBrokenData;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionNil(RegionPtr reg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return ((reg)->data && !(reg)->data->numRects);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* not a region */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionNar(RegionPtr reg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return ((reg)->data == &RegionBrokenData);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline int
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionNumRects(RegionPtr reg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return ((reg)->data ? (reg)->data->numRects : 1);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline int
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionSize(RegionPtr reg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return ((reg)->data ? (reg)->data->size : 0);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline BoxPtr
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionRects(RegionPtr reg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return ((reg)->data ? (BoxPtr) ((reg)->data + 1) : &(reg)->extents);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline BoxPtr
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionBoxptr(RegionPtr reg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return ((BoxPtr) ((reg)->data + 1));
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline BoxPtr
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionBox(RegionPtr reg, int i)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return (&RegionBoxptr(reg)[i]);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline BoxPtr
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionTop(RegionPtr reg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return RegionBox(reg, (reg)->data->numRects);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline BoxPtr
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionEnd(RegionPtr reg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return RegionBox(reg, (reg)->data->numRects - 1);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline size_t
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionSizeof(int n)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return (sizeof(RegDataRec) + ((n) * sizeof(BoxRec)));
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline void
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionInit(RegionPtr _pReg, BoxPtr _rect, int _size)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    if ((_rect) != NULL) {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync        (_pReg)->extents = *(_rect);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync        (_pReg)->data = (RegDataPtr) NULL;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    }
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    else {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync        (_pReg)->extents = RegionEmptyBox;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync        if (((_size) > 1) && ((_pReg)->data =
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync                              (RegDataPtr) malloc(RegionSizeof(_size)))) {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync            (_pReg)->data->size = (_size);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync            (_pReg)->data->numRects = 0;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync        }
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync        else
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync            (_pReg)->data = &RegionEmptyData;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    }
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionInitBoxes(RegionPtr pReg, BoxPtr boxes, int nBoxes)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_init_rects(pReg, boxes, nBoxes);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline void
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionUninit(RegionPtr _pReg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    if ((_pReg)->data && (_pReg)->data->size) {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync        free((_pReg)->data);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync        (_pReg)->data = NULL;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    }
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline void
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionReset(RegionPtr _pReg, BoxPtr _pBox)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    (_pReg)->extents = *(_pBox);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    RegionUninit(_pReg);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    (_pReg)->data = (RegDataPtr) NULL;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionNotEmpty(RegionPtr _pReg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return !RegionNil(_pReg);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionBroken(RegionPtr _pReg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return RegionNar(_pReg);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline void
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionEmpty(RegionPtr _pReg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    RegionUninit(_pReg);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    (_pReg)->extents.x2 = (_pReg)->extents.x1;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    (_pReg)->extents.y2 = (_pReg)->extents.y1;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    (_pReg)->data = &RegionEmptyData;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline BoxPtr
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionExtents(RegionPtr _pReg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return (&(_pReg)->extents);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline void
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionNull(RegionPtr _pReg)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    (_pReg)->extents = RegionEmptyBox;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    (_pReg)->data = &RegionEmptyData;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT void InitRegions(void);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT RegionPtr RegionCreate(BoxPtr /*rect */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync                                        int /*size */ );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT void RegionDestroy(RegionPtr /*pReg */ );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT RegionPtr RegionDuplicate(RegionPtr /* pOld */);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionCopy(RegionPtr dst, RegionPtr src)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_copy(dst, src);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionIntersect(RegionPtr newReg,       /* destination Region */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync                RegionPtr reg1, RegionPtr reg2  /* source regions     */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    )
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_intersect(newReg, reg1, reg2);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionUnion(RegionPtr newReg,   /* destination Region */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync            RegionPtr reg1, RegionPtr reg2      /* source regions     */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    )
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_union(newReg, reg1, reg2);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT Bool RegionAppend(RegionPtr /*dstrgn */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync                                   RegionPtr /*rgn */ );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT Bool RegionValidate(RegionPtr /*badreg */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync                                     Bool * /*pOverlap */ );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT RegionPtr RegionFromRects(int /*nrects */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync                                           xRectanglePtr /*prect */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync                                           int /*ctype */ );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/*-
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *-----------------------------------------------------------------------
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Subtract --
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  Subtract regS from regM and leave the result in regD.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  S stands for subtrahend, M for minuend and D for difference.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Results:
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  TRUE if successful.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Side Effects:
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  regD is overwritten.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *-----------------------------------------------------------------------
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionSubtract(RegionPtr regD, RegionPtr regM, RegionPtr regS)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_subtract(regD, regM, regS);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/*-
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *-----------------------------------------------------------------------
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Inverse --
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  Take a region and a box and return a region that is everything
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  in the box but not in the region. The careful reader will note
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  that this is the same as subtracting the region from the box...
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Results:
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  TRUE.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Side Effects:
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *  newReg is overwritten.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *-----------------------------------------------------------------------
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionInverse(RegionPtr newReg, /* Destination region */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync              RegionPtr reg1,   /* Region to invert */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync              BoxPtr invRect    /* Bounding box for inversion */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    )
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_inverse(newReg, reg1, invRect);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline int
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionContainsRect(RegionPtr region, BoxPtr prect)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_contains_rectangle(region, prect);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* TranslateRegion(pReg, x, y)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync   translates in place
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync*/
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline void
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionTranslate(RegionPtr pReg, int x, int y)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    pixman_region_translate(pReg, x, y);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT Bool RegionBreak(RegionPtr /*pReg */ );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionContainsPoint(RegionPtr pReg, int x, int y, BoxPtr box    /* "return" value */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    )
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_contains_point(pReg, x, y, box);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstatic inline Bool
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncRegionEqual(RegionPtr reg1, RegionPtr reg2)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync{
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    return pixman_region_equal(reg1, reg2);
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync}
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT Bool RegionRectAlloc(RegionPtr /*pRgn */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync                                      int       /*n */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#ifdef DEBUG
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT Bool RegionIsValid(RegionPtr   /*prgn */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync    );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#endif
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern _X_EXPORT void RegionPrint(RegionPtr /*pReg */ );
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define INCLUDE_LEGACY_REGION_DEFINES
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#ifdef INCLUDE_LEGACY_REGION_DEFINES
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_NIL              RegionNil
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_NAR              RegionNar
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_NUM_RECTS            RegionNumRects
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_SIZE             RegionSize
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_RECTS                RegionRects
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_BOXPTR               RegionBoxptr
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_BOX              RegionBox
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_TOP              RegionTop
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_END              RegionEnd
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_SZOF             RegionSizeof
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define BITMAP_TO_REGION            BitmapToRegion
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_CREATE(pScreen, r, s)        RegionCreate(r,s)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_COPY(pScreen, d, r)      RegionCopy(d, r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_DESTROY(pScreen, r)      RegionDestroy(r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_INTERSECT(pScreen, res, r1, r2)  RegionIntersect(res, r1, r2)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_UNION(pScreen, res, r1, r2)  RegionUnion(res, r1, r2)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_SUBTRACT(pScreen, res, r1, r2)   RegionSubtract(res, r1, r2)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_INVERSE(pScreen, n, r, b)    RegionInverse(n, r, b)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_TRANSLATE(pScreen, r, x, y)  RegionTranslate(r, x, y)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define RECT_IN_REGION(pScreen, r, b)       RegionContainsRect(r, b)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define POINT_IN_REGION(pScreen, r, x, y, b)    RegionContainsPoint(r, x, y, b)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_EQUAL(pScreen, r1, r2)       RegionEqual(r1, r2)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_APPEND(pScreen, d, r)        RegionAppend(d, r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_VALIDATE(pScreen, r, o)      RegionValidate(r, o)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define RECTS_TO_REGION(pScreen, n, r, c)   RegionFromRects(n, r, c)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_BREAK(pScreen, r)        RegionBreak(r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_INIT(pScreen, r, b, s)       RegionInit(r, b, s)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_UNINIT(pScreen, r)       RegionUninit(r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_RESET(pScreen, r, b)     RegionReset(r, b)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_NOTEMPTY(pScreen, r)     RegionNotEmpty(r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_BROKEN(pScreen, r)       RegionBroken(r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_EMPTY(pScreen, r)        RegionEmpty(r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_EXTENTS(pScreen, r)      RegionExtents(r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define REGION_NULL(pScreen, r)         RegionNull(r)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#endif                          /* INCLUDE_LEGACY_REGION_DEFINES */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#endif                          /* REGIONSTRUCT_H */