Home | History | Annotate | Line # | Download | only in dumpfont
      1 /*	$NetBSD: fontdumper.c,v 1.4 2002/01/26 13:21:11 aymeric Exp $	*/
      2 
      3 /*
      4  * Routine to allow user to select from available fonts that fit restricitons of
      5  * NetBSD display code and then dump that font in the format for inclusion in
      6  * the kernel. Only character values 32-255 are dumped.
      7  *
      8  * Current kernel only allows fonts up to 8 pixels wide & non-proportional.
      9  * If this changes, the font requestor flags and restriction tests will need
     10  * updating.
     11  * Also the NetBSDwidth value, cursor bits and dumping of font hex values
     12  * needs updating.
     13  *
     14  * Author: Alan Bair
     15  * Dated:  11/12/1993
     16  *
     17  * Added printing of some other useful data for future (and current) expansion.
     18  * -ch
     19  * Dated:  11/17/1993
     20  */
     21 
     22 /* Original code by Markus Wild */
     23 /* This is a *real* hack to dump the topaz80 kernel font. This one is
     24    ways nicer than the ugly Mach font, but we'll have to dump it from a
     25    running system to not run against Commodore copyrights. *NEVER* distribute
     26    the generated font with BSD, always regenerate! */
     27 
     28 #include <exec/types.h>
     29 #include <exec/memory.h>
     30 #include <dos/dos.h>
     31 #include <graphics/gfx.h>
     32 #include <graphics/rastport.h>
     33 #include <graphics/text.h>
     34 #include <libraries/asl.h>
     35 
     36 #include <inline/exec.h>
     37 #include <inline/graphics.h>
     38 
     39 #include <stdio.h>
     40 
     41 #define NetBSDwidth	8
     42 
     43 main(int argc, char *argv[])
     44 {
     45     unsigned char str[256];
     46     int i;
     47     int j;
     48     struct RastPort rp;
     49     unsigned char *pp;
     50     struct BitMap bm = {
     51 	256, 	/* bytes per row */
     52 	8,	/* rows */
     53 	0,	/* flags */
     54 	1,	/* depth */
     55 	0,	/* pad */
     56 	0 	/* planes */
     57 	};
     58     struct TextAttr ta;
     59     struct TextFont *tf;
     60     struct FontRequester *fr;
     61     struct TagItem frtags[] = {
     62 	ASL_Hail, (ULONG)"NetBSD font choices",
     63 	ASL_Width, 640,
     64 	ASL_Height, 400,
     65 	ASL_LeftEdge, 10,
     66 	ASL_TopEdge, 10,
     67 	ASL_OKText, (ULONG)"Dump",
     68 	ASL_CancelText, (ULONG)"Cancel",
     69 	ASL_FontName, (ULONG)"topaz.font",
     70 	ASL_FontHeight, 8L,
     71 	ASL_FontStyles, FS_NORMAL,
     72 	ASL_FuncFlags, FONF_STYLES | FONF_FIXEDWIDTH,
     73 	TAG_DONE
     74 	    };
     75 
     76     /* Let the user pick a font to dump */
     77     if (fr = (struct FontRequester *)
     78 	AllocAslRequest(ASL_FontRequest, frtags)) {
     79 	if (!AslRequest(fr, NULL)) {
     80 	    FreeAslRequest(fr);
     81 	    fprintf(stderr, "User requested exit\n");
     82 	    exit (0);
     83 	}
     84 	ta.ta_Name = (STRPTR)malloc(strlen(fr->fo_Attr.ta_Name));
     85 	strcpy(ta.ta_Name, fr->fo_Attr.ta_Name);
     86 	ta.ta_YSize = fr->fo_Attr.ta_YSize;
     87 	ta.ta_Style = fr->fo_Attr.ta_Style;
     88 	ta.ta_Flags = fr->fo_Attr.ta_Flags;
     89 	FreeAslRequest(fr);
     90     } else {
     91 	fprintf(stderr, "Can't allocate Font Requestor\n");
     92 	exit (1);
     93     }
     94 
     95     /* Open the selected font */
     96     tf = (struct TextFont *)OpenDiskFont (&ta);
     97     if (! tf) {
     98 	fprintf (stderr, "Can't open font: %s\n", ta.ta_Name);
     99 	exit (1);
    100     }
    101 #ifdef DEBUG
    102     fprintf(stderr, "Information on selected font:\n");
    103     fprintf(stderr, "Name=%s\n", ta.ta_Name);
    104     fprintf(stderr, "Height=%d tf_Style=%x tf_Flags=%x Width=%d Baseline=%d\n",
    105 	    tf->tf_YSize, tf->tf_Style, tf->tf_Flags, tf->tf_XSize, tf->tf_Baseline);
    106 #endif
    107 
    108     /* Check for NetBSD restrictions */
    109     if (tf->tf_Flags & FPF_PROPORTIONAL) {
    110 	fprintf(stderr, "NetBSD does not support proportional fonts\n");
    111 	exit (1);
    112     }
    113     if (tf->tf_XSize > NetBSDwidth) {
    114 	fprintf(stderr, "NetBSD does not support fonts wider than %d pixels\n", NetBSDwidth);
    115 	exit (1);
    116     }
    117 
    118     /* Allocate area to render font in */
    119     InitBitMap(&bm, 1, 256 * NetBSDwidth, tf->tf_YSize);
    120     InitRastPort (&rp);
    121     rp.BitMap = &bm;
    122     bm.Planes[0] = pp = AllocRaster (256 * NetBSDwidth, tf->tf_YSize);
    123     if (!pp) {
    124 	fprintf (stderr, "Can't allocate raster!\n");
    125 	exit (1);
    126     }
    127 
    128     /* Initialize string to be rendered */
    129     for (i = 32; i < 256; i++) {
    130 	str[i - 32] = i;
    131     }
    132 
    133     /* Render string with selected font */
    134     SetFont (&rp, tf);
    135     SetSoftStyle(&rp, ta.ta_Style ^ tf->tf_Style,
    136 		 FSF_BOLD | FSF_UNDERLINED | FSF_ITALIC);
    137     Move (&rp, 0, tf->tf_Baseline);
    138     ClearEOL(&rp);
    139     if (tf->tf_XSize != NetBSDwidth) {
    140 	/* right-justify char in cell */
    141 	Move (&rp, NetBSDwidth - tf->tf_XSize, tf->tf_Baseline);
    142 	/* Narrow font, put each character in space of normal font */
    143 	for (i = 0; i < (256 - 32); i++) {
    144 	    Text (&rp, &str[i], 1);
    145 	    Move (&rp, rp.cp_x + (NetBSDwidth - tf->tf_XSize), rp.cp_y);
    146 	}
    147     } else {
    148 	Text (&rp, str, 256 - 32);
    149     }
    150 
    151     /* Dump them.. */
    152     printf ("/* Generated automatically by fontdumper.c. *DONT* distribute\n");
    153     printf ("   this file, it may contain information Copyright by Commodore!\n");
    154     printf ("\n");
    155     printf ("   Font: %s/%d\n", ta.ta_Name, tf->tf_YSize);
    156     printf (" */\n\n");
    157 
    158     printf ("unsigned char kernel_font_width  = %d;\n", tf->tf_XSize);
    159     printf ("unsigned char kernel_font_height = %d;\n", tf->tf_YSize);
    160     printf ("unsigned char kernel_font_baseline = %d;\n", tf->tf_Baseline);
    161     printf ("short         kernel_font_boldsmear = %d;\n", tf->tf_BoldSmear);
    162     printf ("unsigned char kernel_font_lo = 32;\n");
    163     printf ("unsigned char kernel_font_hi = 255;\n\n");
    164 
    165     printf ("unsigned char kernel_cursor[] = {\n");
    166     for (j = 0; j < (tf->tf_YSize -1); j++) {
    167 	printf ("0xff, ");
    168     }
    169     printf ("0xff };\n\n");
    170 
    171     printf ("unsigned char kernel_font[] = {\n");
    172     for (i = 0; i < 256 - 32; i++) {
    173 	printf ("/* %c */", i + 32);
    174 	for (j = 0; j < tf->tf_YSize; j++) {
    175 	    printf (" 0x%02x,", pp[i+j*256]);
    176 	    }
    177 	printf ("\n");
    178     }
    179     printf ("};\n");
    180 
    181     CloseFont (tf);
    182     FreeRaster (pp, 256 * NetBSDwidth, tf->tf_YSize);
    183     return (0);
    184 }
    185