pstoraster/zpaint.c

   1 /* Copyright (C) 1997, 1998 Aladdin Enterprises.  All rights reserved.
   2
   3   This file is part of GNU Ghostscript.
   4
   5   GNU Ghostscript is distributed in the hope that it will be useful, but
   6   WITHOUT ANY WARRANTY.  No author or distributor accepts responsibility
   7   to anyone for the consequences of using it or for whether it serves any
   8   particular purpose or works at all, unless he says so in writing.  Refer
   9   to the GNU General Public License for full details.
  10
  11   Everyone is granted permission to copy, modify and redistribute GNU
  12   Ghostscript, but only under the conditions described in the GNU General
  13   Public License.  A copy of this license is supposed to have been given
  14   to you along with GNU Ghostscript so you can know your rights and
  15   responsibilities.  It should be in a file named COPYING.  Among other
  16   things, the copyright notice and this notice must be preserved on all
  17   copies.
  18
  19   Aladdin Enterprises supports the work of the GNU Project, but is not
  20   affiliated with the Free Software Foundation or the GNU Project.  GNU
  21   Ghostscript, as distributed by Aladdin Enterprises, does not require any
  22   GNU software to build or run it.
  23 */
  24
  25 /*$Id$ */
  26 /* Painting operators */
  27 #include "ghost.h"
  28 #include "oper.h"
  29 #include "gspaint.h"
  30 #include "igstate.h"
  31
  32 /* - fill - */
  33 private int
  34 zfill(register os_ptr op)
  35 {
  36     return gs_fill(igs);
  37 }
  38
  39 /* - eofill - */
  40 private int
  41 zeofill(register os_ptr op)
  42 {
  43     return gs_eofill(igs);
  44 }
  45
  46 /* - stroke - */
  47 private int
  48 zstroke(register os_ptr op)
  49 {
  50     return gs_stroke(igs);
  51 }
  52
  53 /* ------ Non-standard operators ------ */
  54
  55 /* - .fillpage - */
  56 private int
  57 zfillpage(register os_ptr op)
  58 {
  59     return gs_fillpage(igs);
  60 }
  61
  62 /* <width> <height> <data> .imagepath - */
  63 private int
  64 zimagepath(register os_ptr op)
  65 {
  66     int code;
  67
  68     check_type(op[-2], t_integer);
  69     check_type(op[-1], t_integer);
  70     check_read_type(*op, t_string);
  71     if (r_size(op) < ((op[-2].value.intval + 7) >> 3) * op[-1].value.intval)
  72         return_error(e_rangecheck);
  73     code = gs_imagepath(igs,
  74                         (int)op[-2].value.intval, (int)op[-1].value.intval,
  75                         op->value.const_bytes);
  76     if (code >= 0)
  77         pop(3);
  78     return code;
  79 }
  80
  81 /* ------ Initialization procedure ------ */
  82
  83 const op_def zpaint_op_defs[] =
  84 {
  85     {"0eofill", zeofill},
  86     {"0fill", zfill},
  87     {"0stroke", zstroke},
  88                 /* Non-standard operators */
  89     {"0.fillpage", zfillpage},
  90     {"3.imagepath", zimagepath},
  91     op_def_end(0)
  92 };