4.3BSD - /usr/src/new/X/libsun/tile.c

   1: #ifndef lint
   2: static char *rcsid_tile_c = "$Header: tile.c,v 10.2 86/02/01 16:21:30 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[] = "@(#)tile.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: /* tile.c	Perform a raster operation involving a pattern
  44:  *
  45:  *	TileFill	Patterns a portion of the screen
  46:  *	DrawFilled	Draw a filled generalized line/polygon/combination
  47:  *
  48:  */
  49: 
  50: /*
  51:  *	ToDo:
  52:  *		Implement draw filled
  53:  *		Implement tile fill with xymap
  54:  *		Use static pixrects
  55:  */
  56: 
  57: #include "Xsun.h"
  58: 
  59: extern struct pixrect *PixRect;
  60: 
  61: char *Xalloc();
  62: 
  63: static
  64: PixrectFill(Tile, xymask, dstx, dsty, width, height, op, clips, clipcount, xoff, yoff)
  65:     struct pixrect *Tile;
  66:     BITMAP *xymask;
  67:     int dstx, dsty, width, height;
  68:     unsigned op;
  69:     CLIP *clips;
  70:     int clipcount;
  71:     int xoff, yoff;
  72: {
  73:     if (xymask == NULL) {
  74:     /* spread tile from (dstx,dsty) by (width,height) */
  75:     do {
  76:         int         cleft, ctop, cwidth, cheight;
  77: 
  78:         GetNextClip(clips, cleft, ctop, cwidth, cheight);
  79:         if (OverLap(cleft, ctop, cwidth, cheight, dstx, dsty, width, height)) {
  80:         int         tleft = (cleft > dstx ? cleft : dstx);
  81:         int         ttop = (ctop > dsty ? ctop : dsty);
  82:         int         twidth = (cleft + cwidth < dstx + width ? cleft + cwidth : dstx + width) - tleft;
  83:         int         theight = (ctop + cheight < dsty + height ? ctop + cheight : dsty + height) - ttop;
  84:         /* XXX - is this the right tile mode? */
  85:         CheckCursor(tleft, ttop, twidth, theight);
  86:         pr_replrop(PixRect, tleft, ttop, twidth, theight, op,
  87:         Tile, tleft - xoff, ttop - yoff);
  88:         }
  89:     } while (--clipcount > 0);
  90:     }
  91:     else {
  92:     /* spread tile thru xymask */
  93:     struct pixrect *stencil = mem_point(xymask->width, xymask->width, 1, xymask->data);
  94: 
  95: #ifdef  notdef
  96:     do {
  97:         int         cleft, ctop, cwidth, cheight;
  98: 
  99:         GetNextClip(clips, cleft, ctop, cwidth, cheight);
 100:         if (OverLap(cleft, ctop, cwidth, cheight, dstx, dsty, width, height)) {
 101:         int         tleft = (cleft > dstx ? cleft : dstx);
 102:         int         ttop = (ctop > dsty ? ctop : dsty);
 103:         int         twidth = (cleft + cwidth < dstx + width ? cleft + cwidth : dstx + width) - tleft;
 104:         int         theight = (ctop + cheight < dsty + height ? ctop + cheight : dsty + height) - ttop;
 105:         CheckCursor(tleft, ttop, twidth, theight);
 106:         /* XXX - need combination of stencil & replrop */
 107:         pr_stencil(PixRect, tleft, ttop, twidth, theight, op, &stencil, tleft, ttop, NULL, 0, 0);
 108:         }
 109:     } while (--clipcount > 0);
 110: #endif
 111:     pr_destroy(stencil);
 112:     }
 113: }
 114: 
 115: static
 116: ConstantFill(tile, xymask, dstx, dsty, width, height, op, clips, clipcount)
 117:     PIXMAP *tile;
 118:     BITMAP *xymask;
 119:     int dstx, dsty, width, height;
 120:     unsigned op;
 121:     CLIP *clips;
 122:     int clipcount;
 123: {
 124:     op |= PIX_COLOR((PINVERT(tile) ^ (int) tile->data));
 125:     if (xymask == NULL) {
 126:     /* spread constant from (dstx,dsty) by (width,height) */
 127:     do {
 128:         int         cleft, ctop, cwidth, cheight;
 129: 
 130:         GetNextClip(clips, cleft, ctop, cwidth, cheight);
 131:         if (OverLap(cleft, ctop, cwidth, cheight, dstx, dsty, width, height)) {
 132:         int         tleft = (cleft > dstx ? cleft : dstx);
 133:         int         ttop = (ctop > dsty ? ctop : dsty);
 134:         int         twidth = (cleft + cwidth < dstx + width ? cleft + cwidth : dstx + width) - tleft;
 135:         int         theight = (ctop + cheight < dsty + height ? ctop + cheight : dsty + height) - ttop;
 136:         CheckCursor(tleft, ttop, twidth, theight);
 137:         /* XXX - is this the right tile mode? */
 138:         pr_rop(PixRect, tleft, ttop, twidth, theight, op, NULL, 0, 0);
 139:         }
 140:     } while (--clipcount > 0);
 141:     }
 142:     else {
 143:     /* spread constant thru xymask */
 144:     struct pixrect *stencil = mem_point(xymask->width, xymask->width, 1, xymask->data);
 145: 
 146:     do {
 147:         int         cleft, ctop, cwidth, cheight;
 148: 
 149:         GetNextClip(clips, cleft, ctop, cwidth, cheight);
 150:         if (OverLap(cleft, ctop, cwidth, cheight, dstx, dsty, width, height)) {
 151:         int         tleft = (cleft > dstx ? cleft : dstx);
 152:         int         ttop = (ctop > dsty ? ctop : dsty);
 153:         int         twidth = (cleft + cwidth < dstx + width ? cleft + cwidth : dstx + width) - tleft;
 154:         int         theight = (ctop + cheight < dsty + height ? ctop + cheight : dsty + height) - ttop;
 155: 
 156:         CheckCursor(tleft, ttop, twidth, theight);
 157:         pr_stencil(PixRect, tleft, ttop, twidth, theight, op, stencil, tleft, ttop, NULL, 0, 0);
 158:         }
 159:     } while (--clipcount > 0);
 160:     pr_destroy(stencil);
 161:     }
 162: }
 163: 
 164: 
 165: /*ARGSUSED*/
 166: TileFill (tile, xoff, yoff, xymask, dstx, dsty, width, height,
 167:       clips, clipcount, func, zmask)
 168:     PIXMAP *tile;
 169:     BITMAP *xymask;
 170:     int xoff, yoff, dstx, dsty, width, height, zmask;
 171:     register int func;
 172:     CLIP *clips;
 173: {
 174:     int         op = SUN_FROM_X_OP(func) | PIX_DONTCLIP;
 175:     int         allmask = -1;
 176: 
 177:     if ((PixRect->pr_depth == 1) && !(zmask & 1))
 178:     return;
 179:     SetZmask(PixRect, &zmask);
 180:     switch (PTYPE(tile)) {
 181:     case BitmapPixmap:
 182:     {
 183:         struct pixrect *Tile =
 184:         mem_point(tile->width, tile->height, 1, ((BITMAP *) tile->data)->data); /* XXX - slow !!! */
 185: 
 186:         PixrectFill(Tile, xymask, dstx, dsty, width, height, op, clips, clipcount, xoff, yoff);
 187:         pr_destroy(Tile);
 188:     }
 189:     break;
 190:     case ConstantPixmap:
 191:     ConstantFill(tile, xymask, dstx, dsty, width, height, op, clips, clipcount);
 192:     break;
 193:     case XYColorPixmap:
 194:     /* XXX - not yet implemented - do plane by plane */
 195:     break;
 196:     case ZColorPixmap:
 197:     {
 198:         struct pixrect *Tile =
 199:         mem_point(tile->width, tile->height, PixRect->pr_depth, tile->data);    /* XXX - slow !!! */
 200: 
 201:         PixrectFill(Tile, xymask, dstx, dsty, width, height, op, clips, clipcount, xoff, yoff);
 202:         pr_destroy(Tile);
 203:     }
 204:     break;
 205:     }
 206:     SetZmask(PixRect, &allmask);
 207:     RestoreCursor();
 208: }
 209: 
 210: /*ARGSUSED*/
 211: DrawFilled (verts, vertcount, xbase, ybase, srcpix, tile, xoff, yoff,
 212:         clips, clipcount, func, zmask)
 213:     Vertex *verts;
 214:     register PIXMAP *tile;
 215:     int vertcount, xbase, ybase, srcpix, xoff, yoff, clipcount, zmask;
 216:     register int func;
 217:     CLIP *clips;
 218: {
 219:     /* XXX - need pr_polygon_2() */
 220: }
 221: #endif	sun

Defined functions

Defined variables