dlls/wineps/type1.c

   1 /*
   2  *      PostScript driver Type1 font functions
   3  *
   4  *      Copyright 2002  Huw D M Davies for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #include <string.h>
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <assert.h>
  24 #include "winspool.h"
  25 #include "psdrv.h"
  26 #include "wine/debug.h"
  27 #include "winerror.h"
  28 #include "config.h"
  29 #include "wine/port.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
  32
  33 struct tagTYPE1 {
  34     DWORD glyph_sent_size;
  35     BOOL *glyph_sent;
  36     DWORD emsize;
  37 };
  38
  39 #define GLYPH_SENT_INC 128
  40
  41 /* Type 1 font commands */
  42 enum t1_cmds {
  43     rlineto = 5,
  44     rrcurveto = 8,
  45     closepath = 9,
  46     hsbw = 13,
  47     endchar = 14,
  48     rmoveto = 21
  49 };
  50
  51
  52 TYPE1 *T1_download_header(PSDRV_PDEVICE *physDev, LPOUTLINETEXTMETRICA potm,
  53                           char *ps_name)
  54 {
  55     char *buf;
  56     TYPE1 *t1;
  57
  58     char dict[] = /* name, emsquare, fontbbox */
  59       "25 dict begin\n"
  60       " /FontName /%s def\n"
  61       " /Encoding 256 array 0 1 255{1 index exch /.notdef put} for def\n"
  62       " /PaintType 0 def\n"
  63       " /FontMatrix [1 %d div 0 0 1 %d div 0 0] def\n"
  64       " /FontBBox [%d %d %d %d] def\n"
  65       " /FontType 1 def\n"
  66       " /Private 7 dict begin\n"
  67       "  /RD {string currentfile exch readhexstring pop} def\n"
  68       "  /ND {def} def\n"
  69       "  /NP {put} def\n"
  70       "  /MinFeature {16 16} def\n"
  71       "  /BlueValues [] def\n"
  72       "  /password 5839 def\n"
  73       "  /lenIV -1 def\n"
  74       " currentdict end def\n"
  75       " currentdict dup /Private get begin\n"
  76       "  /CharStrings 256 dict begin\n"
  77       "   /.notdef 4 RD 8b8b0d0e ND\n"
  78       "  currentdict end put\n"
  79       " end\n"
  80       "currentdict end dup /FontName get exch definefont pop\n";
  81
  82     t1 = HeapAlloc(GetProcessHeap(), 0, sizeof(*t1));
  83     t1->emsize = potm->otmEMSquare;
  84
  85     t1->glyph_sent_size = GLYPH_SENT_INC;
  86     t1->glyph_sent = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
  87                                t1->glyph_sent_size *
  88                                sizeof(*(t1->glyph_sent)));
  89
  90     buf = HeapAlloc(GetProcessHeap(), 0, sizeof(dict) + strlen(ps_name) +
  91                     100);
  92
  93     sprintf(buf, dict, ps_name, t1->emsize, t1->emsize,
  94             potm->otmrcFontBox.left, potm->otmrcFontBox.bottom,
  95             potm->otmrcFontBox.right, potm->otmrcFontBox.top);
  96
  97     PSDRV_WriteSpool(physDev, buf, strlen(buf));
  98
  99     HeapFree(GetProcessHeap(), 0, buf);
 100     return t1;
 101 }
 102
 103
 104 typedef struct {
 105   BYTE *str;
 106   int len, max_len;
 107 } STR;
 108
 109 static STR *str_init(int sz)
 110 {
 111   STR *str = HeapAlloc(GetProcessHeap(), 0, sizeof(*str));
 112   str->max_len = sz;
 113   str->str = HeapAlloc(GetProcessHeap(), 0, str->max_len);
 114   str->len = 0;
 115   return str;
 116 }
 117
 118 static void str_free(STR *str)
 119 {
 120   HeapFree(GetProcessHeap(), 0, str->str);
 121   HeapFree(GetProcessHeap(), 0, str);
 122 }
 123
 124 static void str_add_byte(STR *str, BYTE b)
 125 {
 126     if(str->len == str->max_len) {
 127         str->max_len *= 2;
 128         str->str = HeapReAlloc(GetProcessHeap(), 0, str->str, str->max_len);
 129     }
 130     str->str[str->len++] = b;
 131 }
 132
 133 static void str_add_num(STR *str, int num)
 134 {
 135     if(num <= 107 && num >= -107)
 136         str_add_byte(str, num + 139);
 137     else if(num >= 108 && num <= 1131) {
 138         str_add_byte(str, ((num - 108) >> 8) + 247);
 139         str_add_byte(str, (num - 108) & 0xff);
 140     } else if(num <= -108 && num >= -1131) {
 141         num = -num;
 142         str_add_byte(str, ((num - 108) >> 8) + 251);
 143         str_add_byte(str, (num - 108) & 0xff);
 144     } else {
 145         str_add_byte(str, 0xff);
 146         str_add_byte(str, (num >> 24) & 0xff);
 147         str_add_byte(str, (num >> 16) & 0xff);
 148         str_add_byte(str, (num >> 8) & 0xff);
 149         str_add_byte(str, (num & 0xff));
 150     }
 151 }
 152
 153 static void str_add_point(STR *str, POINTFX *pt, POINT *curpos)
 154 {
 155     POINT newpos;
 156     newpos.x = pt->x.value + ((pt->x.fract >> 15) & 0x1);
 157     newpos.y = pt->y.value + ((pt->y.fract >> 15) & 0x1);
 158
 159     str_add_num(str, newpos.x - curpos->x);
 160     str_add_num(str, newpos.y - curpos->y);
 161     *curpos = newpos;
 162 }
 163
 164 static void str_add_cmd(STR *str, enum t1_cmds cmd)
 165 {
 166     str_add_byte(str, (BYTE)cmd);
 167 }
 168
 169 static int str_get_bytes(STR *str, BYTE **b)
 170 {
 171   *b = str->str;
 172   return str->len;
 173 }
 174
 175 BOOL T1_download_glyph(PSDRV_PDEVICE *physDev, DOWNLOAD *pdl, DWORD index,
 176                        char *glyph_name)
 177 {
 178     DWORD len, i;
 179     char *buf;
 180     TYPE1 *t1;
 181     STR *charstring;
 182     BYTE *bytes;
 183     HFONT old_font, unscaled_font;
 184     GLYPHMETRICS gm;
 185     char *glyph_buf;
 186     POINT curpos;
 187     TTPOLYGONHEADER *pph;
 188     TTPOLYCURVE *ppc;
 189     LOGFONTW lf;
 190     RECT rc;
 191
 192     char glyph_def_begin[] =
 193       "/%s findfont dup\n"
 194       "/Private get begin\n"
 195       "/CharStrings get begin\n"
 196       "/%s %d RD\n";
 197     char glyph_def_end[] =
 198       "ND\n"
 199       "end end\n";
 200
 201     TRACE("%ld %s\n", index, glyph_name);
 202     assert(pdl->type == Type1);
 203     t1 = pdl->typeinfo.Type1;
 204
 205     if(index < t1->glyph_sent_size) {
 206         if(t1->glyph_sent[index])
 207             return TRUE;
 208     } else {
 209         t1->glyph_sent_size = (index / GLYPH_SENT_INC + 1) * GLYPH_SENT_INC;
 210         t1->glyph_sent = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 211                                       t1->glyph_sent,
 212                                       t1->glyph_sent_size * sizeof(*(t1->glyph_sent)));
 213     }
 214
 215     GetObjectW(GetCurrentObject(physDev->hdc, OBJ_FONT), sizeof(lf), &lf);
 216     rc.left = rc.right = rc.bottom = 0;
 217     rc.top = t1->emsize;
 218     DPtoLP(physDev->hdc, (POINT*)&rc, 2);
 219     lf.lfHeight = -abs(rc.top - rc.bottom);
 220     unscaled_font = CreateFontIndirectW(&lf);
 221     old_font = SelectObject(physDev->hdc, unscaled_font);
 222     len = GetGlyphOutlineW(physDev->hdc, index, GGO_GLYPH_INDEX | GGO_BEZIER,
 223                            &gm, 0, NULL, NULL);
 224     if(len == GDI_ERROR) return FALSE;
 225     glyph_buf = HeapAlloc(GetProcessHeap(), 0, len);
 226     GetGlyphOutlineW(physDev->hdc, index, GGO_GLYPH_INDEX | GGO_BEZIER,
 227                      &gm, len, glyph_buf, NULL);
 228
 229     SelectObject(physDev->hdc, old_font);
 230     DeleteObject(unscaled_font);
 231
 232     charstring = str_init(100);
 233
 234     curpos.x = gm.gmptGlyphOrigin.x;
 235     curpos.y = 0;
 236
 237     str_add_num(charstring, curpos.x);
 238     str_add_num(charstring, gm.gmCellIncX);
 239     str_add_cmd(charstring, hsbw);
 240
 241     pph = (TTPOLYGONHEADER*)glyph_buf;
 242     while((char*)pph < glyph_buf + len) {
 243         TRACE("contour len %ld\n", pph->cb);
 244         ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
 245
 246         str_add_point(charstring, &pph->pfxStart, &curpos);
 247         str_add_cmd(charstring, rmoveto);
 248
 249         while((char*)ppc < (char*)pph + pph->cb) {
 250             TRACE("line type %d cpfx = %d\n", ppc->wType, ppc->cpfx);
 251             switch(ppc->wType) {
 252             case TT_PRIM_LINE:
 253                 for(i = 0; i < ppc->cpfx; i++) {
 254                     str_add_point(charstring, ppc->apfx + i, &curpos);
 255                     str_add_cmd(charstring, rlineto);
 256                 }
 257                 break;
 258             case TT_PRIM_CSPLINE:
 259                 for(i = 0; i < ppc->cpfx/3; i++) {
 260                     str_add_point(charstring, ppc->apfx + 3 * i, &curpos);
 261                     str_add_point(charstring, ppc->apfx + 3 * i + 1, &curpos);
 262                     str_add_point(charstring, ppc->apfx + 3 * i + 2, &curpos);
 263                     str_add_cmd(charstring, rrcurveto);
 264                 }
 265                 break;
 266             default:
 267                 ERR("curve type = %d\n", ppc->wType);
 268                 return FALSE;
 269             }
 270             ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
 271                                  (ppc->cpfx - 1) * sizeof(POINTFX));
 272         }
 273         str_add_cmd(charstring, closepath);
 274         pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
 275     }
 276     str_add_cmd(charstring, endchar);
 277
 278     buf = HeapAlloc(GetProcessHeap(), 0, sizeof(glyph_def_begin) +
 279                     strlen(pdl->ps_name) + strlen(glyph_name) + 100);
 280
 281     sprintf(buf, "%%%%glyph %04lx\n", index);
 282     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 283
 284     len = str_get_bytes(charstring, &bytes);
 285     sprintf(buf, glyph_def_begin, pdl->ps_name, glyph_name, len);
 286     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 287     PSDRV_WriteBytes(physDev, bytes, len);
 288     sprintf(buf, glyph_def_end);
 289     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 290     str_free(charstring);
 291
 292     t1->glyph_sent[index] = TRUE;
 293     HeapFree(GetProcessHeap(), 0, glyph_buf);
 294     HeapFree(GetProcessHeap(), 0, buf);
 295     return TRUE;
 296 }
 297
 298 void T1_free(TYPE1 *t1)
 299 {
 300     HeapFree(GetProcessHeap(), 0, t1->glyph_sent);
 301     HeapFree(GetProcessHeap(), 0, t1);
 302     return;
 303 }