dlls/wineps.drv/download.c

   1 /*
   2  *      PostScript driver downloadable 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 #include <string.h>
  21 #include <stdlib.h>
  22 #include <assert.h>
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29
  30 #include "psdrv.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
  34
  35 #define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
  36           ( ( (DWORD)_x4 << 24 ) |     \
  37             ( (DWORD)_x3 << 16 ) |     \
  38             ( (DWORD)_x2 <<  8 ) |     \
  39               (DWORD)_x1         )
  40
  41 #define GET_BE_WORD(ptr)  MAKEWORD( ((BYTE *)(ptr))[1], ((BYTE *)(ptr))[0] )
  42 #define GET_BE_DWORD(ptr) ((DWORD)MAKELONG( GET_BE_WORD(&((WORD *)(ptr))[1]), \
  43                                             GET_BE_WORD(&((WORD *)(ptr))[0]) ))
  44
  45 /****************************************************************************
  46  *  get_download_name
  47  */
  48 static void get_download_name(PSDRV_PDEVICE *physDev, LPOUTLINETEXTMETRICA
  49                               potm, char **str)
  50 {
  51     int len;
  52     char *p;
  53     DWORD size;
  54
  55     size = GetFontData(physDev->hdc, MS_MAKE_TAG('n','a','m','e'), 0, NULL, 0);
  56     if(size != 0 && size != GDI_ERROR)
  57     {
  58         BYTE *name = HeapAlloc(GetProcessHeap(), 0, size);
  59         if(name)
  60         {
  61             USHORT count, i;
  62             BYTE *strings;
  63             struct
  64             {
  65                 USHORT platform_id;
  66                 USHORT encoding_id;
  67                 USHORT language_id;
  68                 USHORT name_id;
  69                 USHORT length;
  70                 USHORT offset;
  71             } *name_record;
  72
  73             GetFontData(physDev->hdc, MS_MAKE_TAG('n','a','m','e'), 0, name, size);
  74             count = GET_BE_WORD(name + 2);
  75             strings = name + GET_BE_WORD(name + 4);
  76             name_record = (typeof(name_record))(name + 6);
  77             for(i = 0; i < count; i++, name_record++)
  78             {
  79                 name_record->platform_id = GET_BE_WORD(&name_record->platform_id);
  80                 name_record->encoding_id = GET_BE_WORD(&name_record->encoding_id);
  81                 name_record->language_id = GET_BE_WORD(&name_record->language_id);
  82                 name_record->name_id     = GET_BE_WORD(&name_record->name_id);
  83                 name_record->length      = GET_BE_WORD(&name_record->length);
  84                 name_record->offset      = GET_BE_WORD(&name_record->offset);
  85
  86                 if(name_record->platform_id == 1 && name_record->encoding_id == 0 &&
  87                    name_record->language_id == 0 && name_record->name_id == 6)
  88                 {
  89                     TRACE("Got Mac PS name %s\n", debugstr_an((char*)strings + name_record->offset, name_record->length));
  90                     *str = HeapAlloc(GetProcessHeap(), 0, name_record->length + 1);
  91                     memcpy(*str, strings + name_record->offset, name_record->length);
  92                     *(*str + name_record->length) = '\0';
  93                     HeapFree(GetProcessHeap(), 0, name);
  94                     return;
  95                 }
  96                 if(name_record->platform_id == 3 && name_record->encoding_id == 1 &&
  97                    name_record->language_id == 0x409 && name_record->name_id == 6)
  98                 {
  99                     WCHAR *unicode = HeapAlloc(GetProcessHeap(), 0, name_record->length + 2);
 100                     DWORD len;
 101                     int c;
 102
 103                     for(c = 0; c < name_record->length / 2; c++)
 104                         unicode[c] = GET_BE_WORD(strings + name_record->offset + c * 2);
 105                     unicode[c] = 0;
 106                     TRACE("Got Windows PS name %s\n", debugstr_w(unicode));
 107                     len = WideCharToMultiByte(1252, 0, unicode, -1, NULL, 0, NULL, NULL);
 108                     *str = HeapAlloc(GetProcessHeap(), 0, len);
 109                     WideCharToMultiByte(1252, 0, unicode, -1, *str, len, NULL, NULL);
 110                     HeapFree(GetProcessHeap(), 0, unicode);
 111                     HeapFree(GetProcessHeap(), 0, name);
 112                     return;
 113                 }
 114             }
 115             TRACE("Unable to find PostScript name\n");
 116             HeapFree(GetProcessHeap(), 0, name);
 117         }
 118     }
 119
 120     len = strlen((char*)potm + (ptrdiff_t)potm->otmpFullName) + 1;
 121     *str = HeapAlloc(GetProcessHeap(),0,len);
 122     strcpy(*str, (char*)potm + (ptrdiff_t)potm->otmpFullName);
 123
 124     p = *str;
 125     while((p = strchr(p, ' ')))
 126         *p = '_';
 127
 128     return;
 129 }
 130
 131 /****************************************************************************
 132  *  is_font_downloaded
 133  */
 134 static DOWNLOAD *is_font_downloaded(PSDRV_PDEVICE *physDev, char *ps_name)
 135 {
 136     DOWNLOAD *pdl;
 137
 138     for(pdl = physDev->downloaded_fonts; pdl; pdl = pdl->next)
 139         if(!strcmp(pdl->ps_name, ps_name))
 140             break;
 141     return pdl;
 142 }
 143
 144 /****************************************************************************
 145  *  is_room_for_font
 146  */
 147 static BOOL is_room_for_font(PSDRV_PDEVICE *physDev)
 148 {
 149     DOWNLOAD *pdl;
 150     int count = 0;
 151
 152     /* FIXME: should consider vm usage of each font and available printer memory.
 153        For now we allow up to two fonts to be downloaded at a time */
 154     for(pdl = physDev->downloaded_fonts; pdl; pdl = pdl->next)
 155         count++;
 156
 157     if(count > 1)
 158         return FALSE;
 159     return TRUE;
 160 }
 161
 162 /****************************************************************************
 163  *  get_bbox
 164  *
 165  * This retrieves the bounding box of the font in font units as well as
 166  * the size of the emsquare.  To avoid having to worry about mapping mode and
 167  * the font size we'll get the data directly from the TrueType HEAD table rather
 168  * than using GetOutlineTextMetrics.
 169  */
 170 static BOOL get_bbox(PSDRV_PDEVICE *physDev, RECT *rc, UINT *emsize)
 171 {
 172     BYTE head[54]; /* the head table is 54 bytes long */
 173
 174     if(GetFontData(physDev->hdc, MS_MAKE_TAG('h','e','a','d'), 0, head,
 175                    sizeof(head)) == GDI_ERROR) {
 176         ERR("Can't retrieve head table\n");
 177         return FALSE;
 178     }
 179     *emsize = GET_BE_WORD(head + 18); /* unitsPerEm */
 180     rc->left = (signed short)GET_BE_WORD(head + 36); /* xMin */
 181     rc->bottom = (signed short)GET_BE_WORD(head + 38); /* yMin */
 182     rc->right = (signed short)GET_BE_WORD(head + 40); /* xMax */
 183     rc->top = (signed short)GET_BE_WORD(head + 42); /* yMax */
 184     return TRUE;
 185 }
 186
 187 /****************************************************************************
 188  *  PSDRV_SelectDownloadFont
 189  *
 190  *  Set up physDev->font for a downloadable font
 191  *
 192  */
 193 BOOL PSDRV_SelectDownloadFont(PSDRV_PDEVICE *physDev)
 194 {
 195     char *ps_name;
 196     LPOUTLINETEXTMETRICA potm;
 197     DWORD len = GetOutlineTextMetricsA(physDev->hdc, 0, NULL);
 198
 199     if(!len) return FALSE;
 200     potm = HeapAlloc(GetProcessHeap(), 0, len);
 201     GetOutlineTextMetricsA(physDev->hdc, len, potm);
 202     get_download_name(physDev, potm, &ps_name);
 203
 204     physDev->font.fontloc = Download;
 205     physDev->font.fontinfo.Download = is_font_downloaded(physDev, ps_name);
 206
 207     physDev->font.size = abs(PSDRV_YWStoDS(physDev, /* ppem */
 208                                        potm->otmTextMetrics.tmAscent +
 209                                        potm->otmTextMetrics.tmDescent -
 210                                        potm->otmTextMetrics.tmInternalLeading));
 211     physDev->font.underlineThickness = potm->otmsUnderscoreSize;
 212     physDev->font.underlinePosition = potm->otmsUnderscorePosition;
 213     physDev->font.strikeoutThickness = potm->otmsStrikeoutSize;
 214     physDev->font.strikeoutPosition = potm->otmsStrikeoutPosition;
 215
 216     HeapFree(GetProcessHeap(), 0, ps_name);
 217     HeapFree(GetProcessHeap(), 0, potm);
 218     return TRUE;
 219 }
 220
 221 /****************************************************************************
 222  *  PSDRV_WriteSetDownloadFont
 223  *
 224  *  Write setfont for download font.
 225  *
 226  */
 227 BOOL PSDRV_WriteSetDownloadFont(PSDRV_PDEVICE *physDev)
 228 {
 229     char *ps_name;
 230     LPOUTLINETEXTMETRICA potm;
 231     DWORD len = GetOutlineTextMetricsA(physDev->hdc, 0, NULL);
 232     DOWNLOAD *pdl;
 233
 234     assert(physDev->font.fontloc == Download);
 235
 236     potm = HeapAlloc(GetProcessHeap(), 0, len);
 237     GetOutlineTextMetricsA(physDev->hdc, len, potm);
 238
 239     get_download_name(physDev, potm, &ps_name);
 240
 241     if(physDev->font.fontinfo.Download == NULL) {
 242         RECT bbox;
 243         UINT emsize;
 244
 245         if (!get_bbox(physDev, &bbox, &emsize)) {
 246             HeapFree(GetProcessHeap(), 0, potm);
 247             return FALSE;
 248         }
 249         if(!is_room_for_font(physDev))
 250             PSDRV_EmptyDownloadList(physDev, TRUE);
 251
 252         pdl = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*pdl));
 253         pdl->ps_name = HeapAlloc(GetProcessHeap(), 0, strlen(ps_name)+1);
 254         strcpy(pdl->ps_name, ps_name);
 255         pdl->next = NULL;
 256
 257         if(physDev->pi->ppd->TTRasterizer == RO_Type42) {
 258             pdl->typeinfo.Type42 = T42_download_header(physDev, ps_name, &bbox, emsize);
 259             pdl->type = Type42;
 260         }
 261         if(pdl->typeinfo.Type42 == NULL) {
 262             pdl->typeinfo.Type1 = T1_download_header(physDev, ps_name, &bbox, emsize);
 263             pdl->type = Type1;
 264         }
 265         pdl->next = physDev->downloaded_fonts;
 266         physDev->downloaded_fonts = pdl;
 267         physDev->font.fontinfo.Download = pdl;
 268
 269         if(pdl->type == Type42) {
 270             char g_name[MAX_G_NAME + 1];
 271             get_glyph_name(physDev->hdc, 0, g_name);
 272             T42_download_glyph(physDev, pdl, 0, g_name);
 273         }
 274     }
 275
 276
 277     PSDRV_WriteSetFont(physDev, ps_name, physDev->font.size,
 278                        physDev->font.escapement);
 279
 280     HeapFree(GetProcessHeap(), 0, ps_name);
 281     HeapFree(GetProcessHeap(), 0, potm);
 282     return TRUE;
 283 }
 284
 285 void get_glyph_name(HDC hdc, WORD index, char *name)
 286 {
 287   /* FIXME */
 288     sprintf(name, "g%04x", index);
 289     return;
 290 }
 291
 292 /****************************************************************************
 293  *  PSDRV_WriteDownloadGlyphShow
 294  *
 295  *  Download and write out a number of glyphs
 296  *
 297  */
 298 BOOL PSDRV_WriteDownloadGlyphShow(PSDRV_PDEVICE *physDev, WORD *glyphs,
 299                                   UINT count)
 300 {
 301     UINT i;
 302     char g_name[MAX_G_NAME + 1];
 303     assert(physDev->font.fontloc == Download);
 304
 305     switch(physDev->font.fontinfo.Download->type) {
 306     case Type42:
 307     for(i = 0; i < count; i++) {
 308         get_glyph_name(physDev->hdc, glyphs[i], g_name);
 309         T42_download_glyph(physDev, physDev->font.fontinfo.Download,
 310                            glyphs[i], g_name);
 311         PSDRV_WriteGlyphShow(physDev, g_name);
 312     }
 313     break;
 314
 315     case Type1:
 316     for(i = 0; i < count; i++) {
 317         get_glyph_name(physDev->hdc, glyphs[i], g_name);
 318         T1_download_glyph(physDev, physDev->font.fontinfo.Download,
 319                           glyphs[i], g_name);
 320         PSDRV_WriteGlyphShow(physDev, g_name);
 321     }
 322     break;
 323
 324     default:
 325         ERR("Type = %d\n", physDev->font.fontinfo.Download->type);
 326         assert(0);
 327     }
 328     return TRUE;
 329 }
 330
 331 /****************************************************************************
 332  *  PSDRV_EmptyDownloadList
 333  *
 334  *  Clear the list of downloaded fonts
 335  *
 336  */
 337 BOOL PSDRV_EmptyDownloadList(PSDRV_PDEVICE *physDev, BOOL write_undef)
 338 {
 339     DOWNLOAD *pdl, *old;
 340     static const char undef[] = "/%s findfont 40 scalefont setfont /%s undefinefont\n";
 341     char buf[sizeof(undef) + 200];
 342     const char *default_font = physDev->pi->ppd->DefaultFont ?
 343         physDev->pi->ppd->DefaultFont : "Courier";
 344
 345     if(physDev->font.fontloc == Download) {
 346         physDev->font.set = FALSE;
 347         physDev->font.fontinfo.Download = NULL;
 348     }
 349
 350     pdl = physDev->downloaded_fonts;
 351     physDev->downloaded_fonts = NULL;
 352     while(pdl) {
 353         if(write_undef) {
 354             sprintf(buf, undef, default_font, pdl->ps_name);
 355             PSDRV_WriteSpool(physDev, buf, strlen(buf));
 356         }
 357
 358         switch(pdl->type) {
 359         case Type42:
 360             T42_free(pdl->typeinfo.Type42);
 361             break;
 362
 363         case Type1:
 364             T1_free(pdl->typeinfo.Type1);
 365             break;
 366
 367         default:
 368             ERR("Type = %d\n", pdl->type);
 369             assert(0);
 370         }
 371
 372         HeapFree(GetProcessHeap(), 0, pdl->ps_name);
 373         old = pdl;
 374         pdl = pdl->next;
 375         HeapFree(GetProcessHeap(), 0, old);
 376     }
 377     return TRUE;
 378 }