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Annotation of 43BSD/contrib/X/libsun/copy.c, revision 1.1.1.1

1.1       root        1: #ifndef lint
                      2: static char *rcsid_copy_c = "$Header: copy.c,v 10.2 86/02/01 16:20:38 tony Rel $";
                      3: #endif lint
                      4: #ifdef sun
                      5: /*
                      6:  * The Sun X drivers are a product of Sun Microsystems, Inc. and are provided
                      7:  * for unrestricted use provided that this legend is included on all tape
                      8:  * media and as a part of the software program in whole or part.  Users
                      9:  * may copy or modify these drivers without charge, but are not authorized
                     10:  * to license or distribute them to anyone else except as part of a product or
                     11:  * program developed by the user.
                     12:  * 
                     13:  * THE SUN X DRIVERS ARE PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND
                     14:  * INCLUDING THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A
                     15:  * PARTICULAR PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE
                     16:  * PRACTICE.
                     17:  *
                     18:  * The Sun X Drivers are provided with no support and without any obligation
                     19:  * on the part of Sun Microsystems, Inc. to assist in their use, correction,
                     20:  * modification or enhancement.
                     21:  * 
                     22:  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
                     23:  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THE SUN X
                     24:  * DRIVERS OR ANY PART THEREOF.
                     25:  * 
                     26:  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
                     27:  * or profits or other special, indirect and consequential damages, even if
                     28:  * Sun has been advised of the possibility of such damages.
                     29:  * 
                     30:  * Sun Microsystems, Inc.
                     31:  * 2550 Garcia Avenue
                     32:  * Mountain View, California  94043
                     33:  */
                     34: 
                     35: #ifndef        lint
                     36: static char sccsid[] = "@(#)copy.c 2.1 86/01/28 Copyright 1986 Sun Micro";
                     37: #endif
                     38: 
                     39: /*-
                     40:  * Copyright (c) 1986 by Sun Microsystems,  Inc.
                     41:  */
                     42: 
                     43: /* copy.c      Copy one section of the framebuffer to another
                     44:  *
                     45:  *     CopyArea        Copies a section of the framebuffer
                     46:  *
                     47:  */
                     48: 
                     49: #include "Xsun.h"
                     50: 
                     51: extern struct pixrect *PixRect;
                     52: 
                     53: CopyArea (srcx, srcy, width, height, dstx, dsty, clips, clipcount, func, zmask)
                     54:        int srcx, srcy, width, height, dstx, dsty, clipcount, zmask;
                     55:        int func;
                     56:        CLIP *clips;
                     57: {
                     58:     int op = SUN_FROM_X_OP(func);
                     59:     int allmask = -1;
                     60: 
                     61:     SetZmask(PixRect, &zmask);
                     62:     do {
                     63:        int         cleft, ctop, cwidth, cheight;
                     64: 
                     65:        GetNextClip(clips, cleft, ctop, cwidth, cheight);
                     66:        if (OverLap(cleft, ctop, cwidth, cheight, dstx, dsty, width, height)) {
                     67:            int         tleft = (cleft > dstx ? cleft : dstx);
                     68:            int         ttop = (ctop > dsty ? ctop : dsty);
                     69:            int         twidth = (cleft + cwidth < dstx + width ? cleft + cwidth : dstx + width) - tleft;
                     70:            int         theight = (ctop + cheight < dsty + height ? ctop + cheight : dsty + height) - ttop;
                     71:            int         sx = (tleft - dstx) + srcx;
                     72:            int         sy = (ttop - dsty) + srcy;
                     73: 
                     74:            CheckCursor(tleft, ttop, twidth, theight);
                     75:            CheckCursor(sx, sy, twidth, theight);
                     76:            pr_rop(PixRect, tleft, ttop, twidth, theight, op | PIX_DONTCLIP, PixRect, sx, sy);
                     77:        }
                     78:     } while (--clipcount > 0);
                     79:     RestoreCursor();
                     80:     SetZmask(PixRect, &allmask);
                     81: }
                     82: #endif sun

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