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Annotation of researchv9/X11/src/X.V11R1/lib/X/XDrPoint.c, revision 1.1

1.1     ! root        1: #include "copyright.h"
        !             2: 
        !             3: /* $Header: XDrPoint.c,v 11.8 87/09/11 08:10:07 toddb Exp $ */
        !             4: /* Copyright    Massachusetts Institute of Technology    1986  */
        !             5: 
        !             6: #include "Xlibint.h"
        !             7: 
        !             8: /* precompute the maximum size of batching request allowed */
        !             9: 
        !            10: static int size = sizeof(xPolyPointReq) + EPERBATCH * sizeof(xPoint);
        !            11: 
        !            12: XDrawPoint(dpy, d, gc, x, y)
        !            13:     register Display *dpy;
        !            14:     Drawable d;
        !            15:     GC gc;
        !            16:     int x, y; /* INT16 */
        !            17: {
        !            18:     xPoint *point;
        !            19:     LockDisplay(dpy);
        !            20:     FlushGC(dpy, gc);
        !            21:     {
        !            22:     register xPolyPointReq *req = (xPolyPointReq *) dpy->last_req;
        !            23:     /* if same as previous request, with same drawable, batch requests */
        !            24:     if (
        !            25:           (req->reqType == X_PolyPoint)
        !            26:        && (req->drawable == d)
        !            27:        && (req->gc == gc->gid)
        !            28:        && (req->coordMode == CoordModeOrigin)
        !            29:        && ((dpy->bufptr + sizeof (xPoint)) <= dpy->bufmax)
        !            30:        && (((char *)dpy->bufptr - (char *)req) < size) ) {
        !            31:          point = (xPoint *) dpy->bufptr;
        !            32:         req->length += sizeof (xPoint) >> 2;
        !            33:         dpy->bufptr += sizeof (xPoint);
        !            34:         }
        !            35: 
        !            36:     else {
        !            37:        GetReqExtra(PolyPoint, 4, req); /* 1 point = 4 bytes */
        !            38:        req->drawable = d;
        !            39:        req->gc = gc->gid;
        !            40:        req->coordMode = CoordModeOrigin;
        !            41:        point = (xPoint *) (req + 1);
        !            42:        }
        !            43:     point->x = x;
        !            44:     point->y = y;
        !            45:     }
        !            46:     UnlockDisplay(dpy);
        !            47:     SyncHandle();
        !            48: }
        !            49: 

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