#ifdef sun /* * The Sun X drivers are a product of Sun Microsystems, Inc. and are provided * for unrestricted use provided that this legend is included on all tape * media and as a part of the software program in whole or part. Users * may copy or modify these drivers without charge, but are not authorized * to license or distribute them to anyone else except as part of a product or * program developed by the user. * * THE SUN X DRIVERS ARE PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND * INCLUDING THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A * PARTICULAR PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE * PRACTICE. * * The Sun X Drivers are provided with no support and without any obligation * on the part of Sun Microsystems, Inc. to assist in their use, correction, * modification or enhancement. * * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THE SUN X * DRIVERS OR ANY PART THEREOF. * * In no event will Sun Microsystems, Inc. be liable for any lost revenue * or profits or other special, indirect and consequential damages, even if * Sun has been advised of the possibility of such damages. * * Sun Microsystems, Inc. * 2550 Garcia Avenue * Mountain View, California 94043 */ #ifndef lint static char sccsid[] = "@(#)font.c 2.1 86/01/28 Copyright 1986 Sun Micro"; #endif /*- * Copyright 1985, Massachusetts Institute of Technology * Copyright (c) 1986 by Sun Microsystems, Inc. */ /* font.c Reads a font from a file and stores it on the workstation * * GetFont Takes a font name and stores it * FreeFont Frees the storage taken by a font * */ /* * ToDo: * Use Sun fonts too */ #include "Xsun.h" #include "vssite.h" #include "../libvs100/param.h" #include extern int errno; char *Xalloc(), *strcpy(), *strcat(); long lseek(); #define CHARPERFONT 256 static short ReverseBitsInByte[256] = { 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff, }; #define ReverseBitsInShort(s) ((ReverseBitsInByte[(unsigned char)(s)]<<8)|ReverseBitsInByte[(unsigned char)((s)>>8)]) /* * this routine converts strike format into Sun font format * XXX - it's embarrasingly slow, but I'm in too much of a hurry * to do anything better for now. The font stuff is for the deep * six anyway..... (DSHR). */ struct pixfont * striketopixfont(fn) FONT *fn; { register FontPriv *fp = (FontPriv *)fn->data; register struct pixfont *pf; register int fheight = fn->height; register int i, j; ((struct pixfont *)fn->data) = pf = (struct pixfont *) Xalloc(sizeof(struct pixfont)); if (pf != NULL) { extern struct pixrectops mem_ops; static struct mpr_data mprd; static struct pixrect spr = {&mem_ops,2000,1000,1,(caddr_t)&mprd}; { register short *sh = (short *) fp->fltable[0]; register short limit = (fp->wpitch>>1)*fheight; do *sh = ReverseBitsInShort(*sh), sh++; while (--limit != -1); } mprd.md_linebytes = fp->wpitch; mprd.md_image = (short *) fp->fltable[0]; bzero((caddr_t) pf, sizeof(struct pixfont)); pf->pf_defaultsize.y = fheight; if (fn->fixed) pf->pf_defaultsize.x = fn->avg_width; for (i = fn->first; i <= fn->last; i++) { register w = fp->widths[i]; #ifdef undef register offset = fp->leftarray[i]; #endif register struct pixchar *pc = &(pf->pf_char[i]); if (w < 0) continue; /* Sanity check */ pc->pc_pr = mem_create(w, fheight, 1); pc->pc_home.x = 0; pc->pc_home.y = fheight - fn->base; pc->pc_adv.x = w; pc->pc_adv.y = 0; pr_rop(pc->pc_pr,0,0,w,fheight,PIX_SRC, &spr, fp->leftarray[i], 0); #ifdef undef for (j = 0; j < fheight; j++) { register int k; for (k = 0; k < w; k++) { int bit; bit = (*((u_short *)fp->fltable[j] + ((offset+k) >> 4))); bit >>= ((offset + k) % 16); bit &= 1; pr_put(pc->pc_pr, k, j, bit); } } #endif } } free((caddr_t) fp); return ((struct pixfont *)fn->data); } FONT *GetFont (name) char *name; { char fontname[256]; int fontfile = -1; FontData font; #define chars ((BitMap *) font.f_characters) int fontsize, leftsize, width, i, j; char *fontarea; register short *leftarea, *leftarray; register FONT *fd; register FontPriv *fpriv; int tablesize = (CHARPERFONT + 1) * sizeof(short); extern char *getenv(), *index(); static char *Fontpath = NULL; char *fontpath; if (!Fontpath) { char *temp = getenv("XFONTPATH"); if (temp) { Fontpath = Xalloc(strlen(temp) + 1); strcpy(Fontpath, temp); } } if ((fontpath = Fontpath) == NULL) fontpath = DEFAULT_FONT_PATH; fontfile = open (name, 0, 0); while (fontfile < 0) { char *fend; if ((fend = index(fontpath, ':')) != 0) *fend = '\0'; if (*fontpath == '\0') { errno = EINVAL; return (NULL); } if (*fontpath == '~') { /* XXX - should implement ~foobar as well */ strcpy (fontname, getenv("HOME")); strcat (fontname, "/"); fontpath++; } else *fontname = '\0'; strcat (fontname, fontpath); strcat (fontname, "/"); strcat (fontname, name); strcat (fontname, DEFAULT_FONT_SUFFIX); fontfile = open (fontname, 0, 0); if (fend) { *fend = ':'; fontpath = ++fend; } else break; } if (read (fontfile, (caddr_t) &font, sizeof (FontData)) != sizeof (FontData)) { close (fontfile); errno = EINVAL; return (NULL); } Swap_shorts((short *) &font, sizeof (FontData)>>1); fontsize = BitmapSize(chars->bm_width, chars->bm_height); fontarea = (char *) Xalloc (fontsize); lseek (fontfile, (long) font.f_characters[0], 0); if (read (fontfile, fontarea, fontsize) != fontsize) { close (fontfile); free (fontarea); errno = EINVAL; return (NULL); } Swap_shorts((short *)fontarea, fontsize>>1); leftarea = (short *) Xalloc (tablesize); bzero(leftarea, tablesize); leftarray = (short *) Xalloc (tablesize); if (font.f_fixedWidth == 0) { leftsize = (font.f_lastChar - font.f_firstChar + 2) * sizeof (short); lseek (fontfile, (long) font.f_leftArray[0], 0); if (read (fontfile, & leftarea[font.f_firstChar], leftsize) != leftsize) { close (fontfile); free (fontarea); free ((caddr_t) leftarea); free ((caddr_t) leftarray); errno = EINVAL; return (NULL); } Swap_shorts(((short *)& leftarea[font.f_firstChar]), leftsize>>1); } else { /* if fixed with font, generate leftarray for use later */ j = 0; for (i = font.f_firstChar; i <= font.f_lastChar + 1; i++) { leftarea[i] = j; j += font.f_fixedWidth; } } bcopy(leftarea, leftarray, tablesize); close (fontfile); fd = (FONT *) Xalloc (sizeof (FONT)); fd->height = chars->bm_height; fd->first = font.f_firstChar; fd->last = font.f_lastChar; fd->base = font.f_baseline; fd->space = font.f_spaceIndex; fd->space += fd->first; fpriv = (FontPriv *) Xalloc (sizeof (FontPriv)); if (fd->avg_width = font.f_fixedWidth) { fd->fixed = 1; fpriv->maxwidth = fd->avg_width; } else fd->fixed = 0; fd->refcnt = 1; fd->data = (caddr_t) fpriv; fpriv->widths = leftarea; fpriv->leftarray = leftarray; if ((fpriv->strike = (BITMAP *) Xalloc(sizeof(BITMAP))) == NULL) { free (fontarea); free ((caddr_t) leftarea); free ((caddr_t) leftarray); free ((caddr_t) fd); free ((caddr_t) fpriv); errno = EINVAL; return (NULL); } fpriv->wpitch = (((chars->bm_width + 15) >> 3) & ~1); fpriv->strike->width = chars->bm_width; fpriv->strike->height = chars->bm_height; fpriv->strike->refcnt = 1; fpriv->strike->data = (caddr_t) fontarea; /* * compute line table for font to eliminate multiply to find beginning * of line. */ fpriv->fltable = (char **)Xalloc(chars->bm_height * sizeof(caddr_t)); for (i = 0; i < chars->bm_height; i++) fpriv->fltable[i] = ((caddr_t) fontarea) + i * fpriv->wpitch; fd->name = (char *) Xalloc (strlen (name) + 1); strcpy (fd->name, name); fpriv->maxwidth = 0; /* convert the leftarray to the width table */ for (i = fd->first; i <= fd->last; i++) { width = fpriv->leftarray[i + 1] - fpriv->leftarray[i]; if (width > fpriv->maxwidth) fpriv->maxwidth = width; if (width < 0) { width = 0; /* font sanity check */ #ifdef notdef DeviceError ("Bad font leftarray!\n"); #else errno = EINVAL; return(NULL); #endif } fpriv->widths[i] = width; } fd->avg_width = ((fpriv->leftarray[fd->last] - fpriv->leftarray[fd->first]) / (fd->last - fd->first)); striketopixfont(fd); return (fd); #undef chars } FreeFont (font) register FONT *font; { free ((caddr_t) font->data); free (font->name); free ((caddr_t) font); } #endif sun