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     HFONT unscaled_font;
  38 };
  39
  40 #define GLYPH_SENT_INC 128
  41
  42 /* Type 1 font commands */
  43 enum t1_cmds {
  44     rlineto = 5,
  45     rrcurveto = 8,
  46     closepath = 9,
  47     hsbw = 13,
  48     endchar = 14,
  49     rmoveto = 21
  50 };
  51
  52
  53 TYPE1 *T1_download_header(PSDRV_PDEVICE *physDev, LPOUTLINETEXTMETRICA potm,
  54                           char *ps_name)
  55 {
  56     char *buf;
  57     TYPE1 *t1;
  58     LOGFONTW lf;
  59     RECT rc;
  60
  61     char dict[] = /* name, emsquare, fontbbox */
  62       "25 dict begin\n"
  63       " /FontName /%s def\n"
  64       " /Encoding 256 array 0 1 255{1 index exch /.notdef put} for def\n"
  65       " /PaintType 0 def\n"
  66       " /FontMatrix [1 %d div 0 0 1 %d div 0 0] def\n"
  67       " /FontBBox [%d %d %d %d] def\n"
  68       " /FontType 1 def\n"
  69       " /Private 7 dict begin\n"
  70       "  /RD {string currentfile exch readhexstring pop} def\n"
  71       "  /ND {def} def\n"
  72       "  /NP {put} def\n"
  73       "  /MinFeature {16 16} def\n"
  74       "  /BlueValues [] def\n"
  75       "  /password 5839 def\n"
  76       "  /lenIV -1 def\n"
  77       " currentdict end def\n"
  78       " currentdict dup /Private get begin\n"
  79       "  /CharStrings 256 dict begin\n"
  80       "   /.notdef 4 RD 8b8b0d0e ND\n"
  81       "  currentdict end put\n"
  82       " end\n"
  83       "currentdict end dup /FontName get exch definefont pop\n";
  84
  85     t1 = HeapAlloc(GetProcessHeap(), 0, sizeof(*t1));
  86     t1->emsize = potm->otmEMSquare;
  87
  88     GetObjectW(GetCurrentObject(physDev->hdc, OBJ_FONT), sizeof(lf), &lf);
  89     rc.left = rc.right = rc.bottom = 0;
  90     rc.top = t1->emsize;
  91     DPtoLP(physDev->hdc, (POINT*)&rc, 2);
  92     lf.lfHeight = -abs(rc.top - rc.bottom);
  93     t1->unscaled_font = CreateFontIndirectW(&lf);
  94     t1->glyph_sent_size = GLYPH_SENT_INC;
  95     t1->glyph_sent = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
  96                                t1->glyph_sent_size *
  97                                sizeof(*(t1->glyph_sent)));
  98
  99     buf = HeapAlloc(GetProcessHeap(), 0, sizeof(dict) + strlen(ps_name) +
 100                     100);
 101
 102     sprintf(buf, dict, ps_name, t1->emsize, t1->emsize,
 103             potm->otmrcFontBox.left, potm->otmrcFontBox.bottom,
 104             potm->otmrcFontBox.right, potm->otmrcFontBox.top);
 105
 106     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 107
 108     HeapFree(GetProcessHeap(), 0, buf);
 109     return t1;
 110 }
 111
 112
 113 typedef struct {
 114   BYTE *str;
 115   int len, max_len;
 116 } STR;
 117
 118 static STR *str_init(int sz)
 119 {
 120   STR *str = HeapAlloc(GetProcessHeap(), 0, sizeof(*str));
 121   str->max_len = sz;
 122   str->str = HeapAlloc(GetProcessHeap(), 0, str->max_len);
 123   str->len = 0;
 124   return str;
 125 }
 126
 127 static void str_free(STR *str)
 128 {
 129   HeapFree(GetProcessHeap(), 0, str->str);
 130   HeapFree(GetProcessHeap(), 0, str);
 131 }
 132
 133 static void str_add_byte(STR *str, BYTE b)
 134 {
 135     if(str->len == str->max_len) {
 136         str->max_len *= 2;
 137         str->str = HeapReAlloc(GetProcessHeap(), 0, str->str, str->max_len);
 138     }
 139     str->str[str->len++] = b;
 140 }
 141
 142 static void str_add_num(STR *str, int num)
 143 {
 144     if(num <= 107 && num >= -107)
 145         str_add_byte(str, num + 139);
 146     else if(num >= 108 && num <= 1131) {
 147         str_add_byte(str, ((num - 108) >> 8) + 247);
 148         str_add_byte(str, (num - 108) & 0xff);
 149     } else if(num <= -108 && num >= -1131) {
 150         num = -num;
 151         str_add_byte(str, ((num - 108) >> 8) + 251);
 152         str_add_byte(str, (num - 108) & 0xff);
 153     } else {
 154         str_add_byte(str, 0xff);
 155         str_add_byte(str, (num >> 24) & 0xff);
 156         str_add_byte(str, (num >> 16) & 0xff);
 157         str_add_byte(str, (num >> 8) & 0xff);
 158         str_add_byte(str, (num & 0xff));
 159     }
 160 }
 161
 162 static void str_add_point(STR *str, POINTFX *pt, POINT *curpos)
 163 {
 164     POINT newpos;
 165     newpos.x = pt->x.value + ((pt->x.fract >> 15) & 0x1);
 166     newpos.y = pt->y.value + ((pt->y.fract >> 15) & 0x1);
 167
 168     str_add_num(str, newpos.x - curpos->x);
 169     str_add_num(str, newpos.y - curpos->y);
 170     *curpos = newpos;
 171 }
 172
 173 static void str_add_cmd(STR *str, enum t1_cmds cmd)
 174 {
 175     str_add_byte(str, (BYTE)cmd);
 176 }
 177
 178 static int str_get_bytes(STR *str, BYTE **b)
 179 {
 180   *b = str->str;
 181   return str->len;
 182 }
 183
 184 BOOL T1_download_glyph(PSDRV_PDEVICE *physDev, DOWNLOAD *pdl, DWORD index,
 185                        char *glyph_name)
 186 {
 187     DWORD len, i;
 188     char *buf;
 189     TYPE1 *t1;
 190     STR *charstring;
 191     BYTE *bytes;
 192     HFONT old_font;
 193     GLYPHMETRICS gm;
 194     char *glyph_buf;
 195     POINT curpos;
 196     TTPOLYGONHEADER *pph;
 197     TTPOLYCURVE *ppc;
 198     char glyph_def_begin[] =
 199       "/%s findfont dup\n"
 200       "/Private get begin\n"
 201       "/CharStrings get begin\n"
 202       "/%s %d RD\n";
 203     char glyph_def_end[] =
 204       "ND\n"
 205       "end end\n";
 206
 207     TRACE("%ld %s\n", index, glyph_name);
 208     assert(pdl->type == Type1);
 209     t1 = pdl->typeinfo.Type1;
 210
 211     if(index < t1->glyph_sent_size) {
 212         if(t1->glyph_sent[index])
 213             return TRUE;
 214     } else {
 215         t1->glyph_sent_size = (index / GLYPH_SENT_INC + 1) * GLYPH_SENT_INC;
 216         t1->glyph_sent = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 217                                       t1->glyph_sent,
 218                                       t1->glyph_sent_size * sizeof(*(t1->glyph_sent)));
 219     }
 220
 221     old_font = SelectObject(physDev->hdc, t1->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
 231     charstring = str_init(100);
 232
 233     curpos.x = gm.gmptGlyphOrigin.x;
 234     curpos.y = 0;
 235
 236     str_add_num(charstring, curpos.x);
 237     str_add_num(charstring, gm.gmCellIncX);
 238     str_add_cmd(charstring, hsbw);
 239
 240     pph = (TTPOLYGONHEADER*)glyph_buf;
 241     while((char*)pph < glyph_buf + len) {
 242         TRACE("contour len %ld\n", pph->cb);
 243         ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
 244
 245         str_add_point(charstring, &pph->pfxStart, &curpos);
 246         str_add_cmd(charstring, rmoveto);
 247
 248         while((char*)ppc < (char*)pph + pph->cb) {
 249             TRACE("line type %d cpfx = %d\n", ppc->wType, ppc->cpfx);
 250             switch(ppc->wType) {
 251             case TT_PRIM_LINE:
 252                 for(i = 0; i < ppc->cpfx; i++) {
 253                     str_add_point(charstring, ppc->apfx + i, &curpos);
 254                     str_add_cmd(charstring, rlineto);
 255                 }
 256                 break;
 257             case TT_PRIM_CSPLINE:
 258                 for(i = 0; i < ppc->cpfx/3; i++) {
 259                     str_add_point(charstring, ppc->apfx + 3 * i, &curpos);
 260                     str_add_point(charstring, ppc->apfx + 3 * i + 1, &curpos);
 261                     str_add_point(charstring, ppc->apfx + 3 * i + 2, &curpos);
 262                     str_add_cmd(charstring, rrcurveto);
 263                 }
 264                 break;
 265             default:
 266                 ERR("curve type = %d\n", ppc->wType);
 267                 return FALSE;
 268             }
 269             ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
 270                                  (ppc->cpfx - 1) * sizeof(POINTFX));
 271         }
 272         str_add_cmd(charstring, closepath);
 273         pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
 274     }
 275     str_add_cmd(charstring, endchar);
 276
 277     buf = HeapAlloc(GetProcessHeap(), 0, sizeof(glyph_def_begin) +
 278                     strlen(pdl->ps_name) + strlen(glyph_name) + 100);
 279
 280     sprintf(buf, "%%%%glyph %04lx\n", index);
 281     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 282
 283     len = str_get_bytes(charstring, &bytes);
 284     sprintf(buf, glyph_def_begin, pdl->ps_name, glyph_name, len);
 285     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 286     PSDRV_WriteBytes(physDev, bytes, len);
 287     sprintf(buf, glyph_def_end);
 288     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 289     str_free(charstring);
 290
 291     t1->glyph_sent[index] = TRUE;
 292     HeapFree(GetProcessHeap(), 0, glyph_buf);
 293     HeapFree(GetProcessHeap(), 0, buf);
 294     return TRUE;
 295 }
 296
 297 void T1_free(TYPE1 *t1)
 298 {
 299     HeapFree(GetProcessHeap(), 0, t1->glyph_sent);
 300     DeleteObject(t1->unscaled_font);
 301     HeapFree(GetProcessHeap(), 0, t1);
 302     return;
 303 }