i386/util/font.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * font.h -- definitions used in generating bitmap fonts for newblit
  26  */
  27
  28 /* Sizes of structure elements are small to save space...
  29  * Watch out for fonts that exceed the limits imposed by
  30  * these small elements.
  31  */
  32
  33 typedef struct {
  34         char width;
  35         char height;
  36         char xoff;
  37         char yoff;
  38 } bbox_t;
  39
  40 typedef struct {
  41         bbox_t bbx;
  42         short dwidth;
  43         short bitx;
  44 } bitmap_t;
  45
  46 #define FONTNAMELEN             64
  47 #define ENCODEBASE              0x20
  48 #define ENCODELAST              0x7E
  49
  50 typedef struct {
  51         char font[FONTNAMELEN+1];
  52         unsigned short size;
  53         bbox_t bbx;
  54         bitmap_t bitmaps[ENCODELAST - ENCODEBASE + 1];
  55         unsigned const char bits[0];
  56 } font_t;
  57
  58 /*
  59  * For 'c' output.
  60  */
  61 typedef struct {
  62         char *font;
  63         unsigned short size;
  64         bbox_t bbx;
  65         bitmap_t bitmaps[ENCODELAST - ENCODEBASE + 1];
  66         unsigned const char *bits;
  67 } font_c_t;
  68
  69 extern const font_t *fontp;