dlls/wineps.drv/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <string.h>
  25 #include <stdlib.h>
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28 #include <assert.h>
  29
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winerror.h"
  33 #include "wingdi.h"
  34 #include "winspool.h"
  35
  36 #include "psdrv.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
  40
  41 struct tagTYPE1 {
  42     DWORD glyph_sent_size;
  43     BOOL *glyph_sent;
  44     DWORD emsize;
  45 };
  46
  47 #define GLYPH_SENT_INC 128
  48
  49 /* Type 1 font commands */
  50 enum t1_cmds {
  51     rlineto = 5,
  52     rrcurveto = 8,
  53     closepath = 9,
  54     hsbw = 13,
  55     endchar = 14,
  56     rmoveto = 21
  57 };
  58
  59
  60 TYPE1 *T1_download_header(PSDRV_PDEVICE *physDev, char *ps_name, RECT *bbox, UINT emsize)
  61 {
  62     char *buf;
  63     TYPE1 *t1;
  64
  65     char dict[] = /* name, emsquare, fontbbox */
  66       "25 dict begin\n"
  67       " /FontName /%s def\n"
  68       " /Encoding 256 array 0 1 255{1 index exch /.notdef put} for def\n"
  69       " /PaintType 0 def\n"
  70       " /FontMatrix [1 %d div 0 0 1 %d div 0 0] def\n"
  71       " /FontBBox [%d %d %d %d] def\n"
  72       " /FontType 1 def\n"
  73       " /Private 7 dict begin\n"
  74       "  /RD {string currentfile exch readhexstring pop} def\n"
  75       "  /ND {def} def\n"
  76       "  /NP {put} def\n"
  77       "  /MinFeature {16 16} def\n"
  78       "  /BlueValues [] def\n"
  79       "  /password 5839 def\n"
  80       "  /lenIV -1 def\n"
  81       " currentdict end def\n"
  82       " currentdict dup /Private get begin\n"
  83       "  /CharStrings 256 dict begin\n"
  84       "   /.notdef 4 RD 8b8b0d0e ND\n"
  85       "  currentdict end put\n"
  86       " end\n"
  87       "currentdict end dup /FontName get exch definefont pop\n";
  88
  89     t1 = HeapAlloc(GetProcessHeap(), 0, sizeof(*t1));
  90     t1->emsize = emsize;
  91
  92     t1->glyph_sent_size = GLYPH_SENT_INC;
  93     t1->glyph_sent = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
  94                                t1->glyph_sent_size *
  95                                sizeof(*(t1->glyph_sent)));
  96
  97     buf = HeapAlloc(GetProcessHeap(), 0, sizeof(dict) + strlen(ps_name) +
  98                     100);
  99
 100     sprintf(buf, dict, ps_name, t1->emsize, t1->emsize,
 101             bbox->left, bbox->bottom, bbox->right, bbox->top);
 102
 103     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 104
 105     HeapFree(GetProcessHeap(), 0, buf);
 106     return t1;
 107 }
 108
 109
 110 typedef struct {
 111   BYTE *str;
 112   int len, max_len;
 113 } STR;
 114
 115 static STR *str_init(int sz)
 116 {
 117   STR *str = HeapAlloc(GetProcessHeap(), 0, sizeof(*str));
 118   str->max_len = sz;
 119   str->str = HeapAlloc(GetProcessHeap(), 0, str->max_len);
 120   str->len = 0;
 121   return str;
 122 }
 123
 124 static void str_free(STR *str)
 125 {
 126   HeapFree(GetProcessHeap(), 0, str->str);
 127   HeapFree(GetProcessHeap(), 0, str);
 128 }
 129
 130 static void str_add_byte(STR *str, BYTE b)
 131 {
 132     if(str->len == str->max_len) {
 133         str->max_len *= 2;
 134         str->str = HeapReAlloc(GetProcessHeap(), 0, str->str, str->max_len);
 135     }
 136     str->str[str->len++] = b;
 137 }
 138
 139 static void str_add_num(STR *str, int num)
 140 {
 141     if(num <= 107 && num >= -107)
 142         str_add_byte(str, num + 139);
 143     else if(num >= 108 && num <= 1131) {
 144         str_add_byte(str, ((num - 108) >> 8) + 247);
 145         str_add_byte(str, (num - 108) & 0xff);
 146     } else if(num <= -108 && num >= -1131) {
 147         num = -num;
 148         str_add_byte(str, ((num - 108) >> 8) + 251);
 149         str_add_byte(str, (num - 108) & 0xff);
 150     } else {
 151         str_add_byte(str, 0xff);
 152         str_add_byte(str, (num >> 24) & 0xff);
 153         str_add_byte(str, (num >> 16) & 0xff);
 154         str_add_byte(str, (num >> 8) & 0xff);
 155         str_add_byte(str, (num & 0xff));
 156     }
 157 }
 158
 159 static void str_add_point(STR *str, POINTFX *pt, POINT *curpos)
 160 {
 161     POINT newpos;
 162     newpos.x = pt->x.value + ((pt->x.fract >> 15) & 0x1);
 163     newpos.y = pt->y.value + ((pt->y.fract >> 15) & 0x1);
 164
 165     str_add_num(str, newpos.x - curpos->x);
 166     str_add_num(str, newpos.y - curpos->y);
 167     *curpos = newpos;
 168 }
 169
 170 static void str_add_cmd(STR *str, enum t1_cmds cmd)
 171 {
 172     str_add_byte(str, (BYTE)cmd);
 173 }
 174
 175 static int str_get_bytes(STR *str, BYTE **b)
 176 {
 177   *b = str->str;
 178   return str->len;
 179 }
 180
 181 BOOL T1_download_glyph(PSDRV_PDEVICE *physDev, DOWNLOAD *pdl, DWORD index,
 182                        char *glyph_name)
 183 {
 184     DWORD len, i;
 185     char *buf;
 186     TYPE1 *t1;
 187     STR *charstring;
 188     BYTE *bytes;
 189     HFONT old_font, unscaled_font;
 190     GLYPHMETRICS gm;
 191     char *glyph_buf;
 192     POINT curpos;
 193     TTPOLYGONHEADER *pph;
 194     TTPOLYCURVE *ppc;
 195     LOGFONTW lf;
 196     RECT rc;
 197
 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("%d %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     GetObjectW(GetCurrentObject(physDev->hdc, OBJ_FONT), sizeof(lf), &lf);
 222     rc.left = rc.right = rc.bottom = 0;
 223     rc.top = t1->emsize;
 224     DPtoLP(physDev->hdc, (POINT*)&rc, 2);
 225     lf.lfHeight = -abs(rc.top - rc.bottom);
 226     lf.lfOrientation = lf.lfEscapement = 0;
 227     unscaled_font = CreateFontIndirectW(&lf);
 228     old_font = SelectObject(physDev->hdc, unscaled_font);
 229     len = GetGlyphOutlineW(physDev->hdc, index, GGO_GLYPH_INDEX | GGO_BEZIER,
 230                            &gm, 0, NULL, NULL);
 231     if(len == GDI_ERROR) return FALSE;
 232     glyph_buf = HeapAlloc(GetProcessHeap(), 0, len);
 233     GetGlyphOutlineW(physDev->hdc, index, GGO_GLYPH_INDEX | GGO_BEZIER,
 234                      &gm, len, glyph_buf, NULL);
 235
 236     SelectObject(physDev->hdc, old_font);
 237     DeleteObject(unscaled_font);
 238
 239     charstring = str_init(100);
 240
 241     curpos.x = gm.gmptGlyphOrigin.x;
 242     curpos.y = 0;
 243
 244     str_add_num(charstring, curpos.x);
 245     str_add_num(charstring, gm.gmCellIncX);
 246     str_add_cmd(charstring, hsbw);
 247
 248     pph = (TTPOLYGONHEADER*)glyph_buf;
 249     while((char*)pph < glyph_buf + len) {
 250         TRACE("contour len %d\n", pph->cb);
 251         ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
 252
 253         str_add_point(charstring, &pph->pfxStart, &curpos);
 254         str_add_cmd(charstring, rmoveto);
 255
 256         while((char*)ppc < (char*)pph + pph->cb) {
 257             TRACE("line type %d cpfx = %d\n", ppc->wType, ppc->cpfx);
 258             switch(ppc->wType) {
 259             case TT_PRIM_LINE:
 260                 for(i = 0; i < ppc->cpfx; i++) {
 261                     str_add_point(charstring, ppc->apfx + i, &curpos);
 262                     str_add_cmd(charstring, rlineto);
 263                 }
 264                 break;
 265             case TT_PRIM_CSPLINE:
 266                 for(i = 0; i < ppc->cpfx/3; i++) {
 267                     str_add_point(charstring, ppc->apfx + 3 * i, &curpos);
 268                     str_add_point(charstring, ppc->apfx + 3 * i + 1, &curpos);
 269                     str_add_point(charstring, ppc->apfx + 3 * i + 2, &curpos);
 270                     str_add_cmd(charstring, rrcurveto);
 271                 }
 272                 break;
 273             default:
 274                 ERR("curve type = %d\n", ppc->wType);
 275                 return FALSE;
 276             }
 277             ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
 278                                  (ppc->cpfx - 1) * sizeof(POINTFX));
 279         }
 280         str_add_cmd(charstring, closepath);
 281         pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
 282     }
 283     str_add_cmd(charstring, endchar);
 284
 285     buf = HeapAlloc(GetProcessHeap(), 0, sizeof(glyph_def_begin) +
 286                     strlen(pdl->ps_name) + strlen(glyph_name) + 100);
 287
 288     sprintf(buf, "%%%%glyph %04x\n", index);
 289     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 290
 291     len = str_get_bytes(charstring, &bytes);
 292     sprintf(buf, glyph_def_begin, pdl->ps_name, glyph_name, len);
 293     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 294     PSDRV_WriteBytes(physDev, bytes, len);
 295     sprintf(buf, glyph_def_end);
 296     PSDRV_WriteSpool(physDev, buf, strlen(buf));
 297     str_free(charstring);
 298
 299     t1->glyph_sent[index] = TRUE;
 300     HeapFree(GetProcessHeap(), 0, glyph_buf);
 301     HeapFree(GetProcessHeap(), 0, buf);
 302     return TRUE;
 303 }
 304
 305 void T1_free(TYPE1 *t1)
 306 {
 307     HeapFree(GetProcessHeap(), 0, t1->glyph_sent);
 308     HeapFree(GetProcessHeap(), 0, t1);
 309     return;
 310 }