A new try to synchronize bitmap font access. include/freetype/freetype.h (FT_Bitmap_Size): `height' is now defined to return the baseline-to-baseline distance. This was already the value returned by the BDF and PCF drivers. The `width' field now gives the average width. I wasn't able to find something better. It should be taken as informative only. New fields `size', `x_ppem', and `y_ppem'. * src/pcf/pcfread.c (pcf_load_font): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/sfnt/sfobjs.c (sfnt_load_face): Updated to properly fill FT_Bitmap_Size. * src/winfonts/winfnt.c (FNT_Face_Init): Updated to properly fill FT_Bitmap_Size. Redesigning the FNT driver to return multiple faces, not multiple strikes. At least one font (app850.fon from WinME) contains different FNT charmaps for its subfonts. Consequently, the previous design of having multiple bitmap strikes in a single font face fails since we have only one charmap per face. * include/freetype/internal/fnttypes.h (FNT_Size_Rec): Removed. (FNT_FaceRec): Remove `num_fonts' field and replace `fonts' with `font'. * src/base/ftwinfnt.c (FT_Get_WinFNT_Header): Updated. * src/winfonts/winfnt.c (fnt_font_load): Don't set pixel_width equal to pixel_height. (fnt_face_done_fonts): Removed. (fnt_face_get_dll_fonts): Renamed to... (fnt_face_get_dll_font): This. Add second function argument to select face index. Updated to load just one subfont. (fnt_font_done, FNT_Face_Done): Updated. (FNT_Face_Init): Handle `face_index'. Updated. (FNT_Size_Set_Pixels): Simplified; similar to BDF and PCF, the bitmap width is now ignored. (FNT_Load_Glyph): Updated. Fix glyph index computation. (winfnt_driver_class): Updated.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930
diff --git a/ChangeLog b/ChangeLog
index fc5d998..5958700 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,60 @@
+2003-06-30 Werner Lemberg <wl@gnu.org>
+
+ A new try to synchronize bitmap font access.
+
+ include/freetype/freetype.h (FT_Bitmap_Size): `height' is now
+ defined to return the baseline-to-baseline distance. This was
+ already the value returned by the BDF and PCF drivers.
+
+ The `width' field now gives the average width. I wasn't able to
+ find something better. It should be taken as informative only.
+
+ New fields `size', `x_ppem', and `y_ppem'.
+
+ * src/pcf/pcfread.c (pcf_load_font): Updated to properly fill
+ FT_Bitmap_Size.
+ Do proper rounding and conversion from 72.27 to 72 points.
+
+ * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated to properly fill
+ FT_Bitmap_Size.
+ Do proper rounding and conversion from 72.27 to 72 points.
+
+ * src/sfnt/sfobjs.c (sfnt_load_face): Updated to properly fill
+ FT_Bitmap_Size.
+
+ * src/winfonts/winfnt.c (FNT_Face_Init): Updated to properly fill
+ FT_Bitmap_Size.
+
+2003-06-29 Werner Lemberg <wl@gnu.org>
+
+ Redesigning the FNT driver to return multiple faces, not multiple
+ strikes. At least one font (app850.fon from WinME) contains
+ different FNT charmaps for its subfonts. Consequently, the previous
+ design of having multiple bitmap strikes in a single font face fails
+ since we have only one charmap per face.
+
+ * include/freetype/internal/fnttypes.h (FNT_Size_Rec): Removed.
+ (FNT_FaceRec): Remove `num_fonts' field and replace `fonts' with
+ `font'.
+
+ * src/base/ftwinfnt.c (FT_Get_WinFNT_Header): Updated.
+
+ * src/winfonts/winfnt.c (fnt_font_load): Don't set pixel_width equal
+ to pixel_height.
+ (fnt_face_done_fonts): Removed.
+ (fnt_face_get_dll_fonts): Renamed to...
+ (fnt_face_get_dll_font): This. Add second function argument to
+ select face index.
+ Updated to load just one subfont.
+ (fnt_font_done, FNT_Face_Done): Updated.
+ (FNT_Face_Init): Handle `face_index'.
+ Updated.
+ (FNT_Size_Set_Pixels): Simplified; similar to BDF and PCF, the
+ bitmap width is now ignored.
+ (FNT_Load_Glyph): Updated.
+ Fix glyph index computation.
+ (winfnt_driver_class): Updated.
+
2003-06-25 Owen Taylor <otaylor@redhat.com>
* src/sfnt/ttload.c (tt_face_load_hdmx): Don't assign
diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h
index 241298f..f4c3e61 100644
--- a/include/freetype/freetype.h
+++ b/include/freetype/freetype.h
@@ -210,26 +210,62 @@ FT_BEGIN_HEADER
/* FT_Bitmap_Size */
/* */
/* <Description> */
- /* An extremely simple structure used to model the size of a bitmap */
- /* strike (i.e., a bitmap instance of the font for a given */
- /* resolution) in a fixed-size font face. This is used for the */
- /* `available_sizes' field of the @FT_FaceRec structure. */
+ /* This structure models the size of a bitmap strike (i.e., a bitmap */
+ /* instance of the font for a given resolution) in a fixed-size font */
+ /* face. It is used for the `available_sizes' field of the */
+ /* @FT_FaceRec structure. */
/* */
/* <Fields> */
- /* height :: The character height in pixels. */
+ /* height :: The (vertical) baseline-to-baseline distance in pixels. */
+ /* It makes most sense to define the height of a bitmap */
+ /* font in this way. */
+ /* */
+ /* width :: The average width of the font (in pixels). Since the */
+ /* algorithms to compute this value are different for the */
+ /* various bitmap formats, it can only give an additional */
+ /* hint if the `height' value isn't sufficient to select */
+ /* the proper font. For monospaced fonts the average width */
+ /* is the same as the maximum width. */
+ /* */
+ /* size :: The point size in 26.6 fractional format this font shall */
+ /* represent (for a given vertical resolution). */
+ /* */
+ /* x_ppem :: The horizontal ppem value (in 26.6 fractional format). */
+ /* */
+ /* y_ppem :: The vertical ppem value (in 26.6 fractional format). */
+ /* */
+ /* <Note> */
+ /* The values in this structure are taken from the bitmap font. If */
+ /* the font doesn't provide a parameter it is set to zero to indicate */
+ /* that the information is not available. */
+ /* */
+ /* The following formula converts from dpi to ppem: */
/* */
- /* width :: The character width in pixels. For drivers which */
- /* contain a single bitmap strike only (BDF, PCF) this */
- /* field is always equal to `height'. To get the */
- /* (maximum) width of a bitmap strike use */
- /* `face->size->metrics.max_advance' after a call to */
- /* @FT_Set_Pixel_Sizes. */
+ /* ppem = size * dpi / 72 */
+ /* */
+ /* where `size' is in points. */
+ /* */
+ /* Windows FNT: */
+ /* The `size', `x_ppem', and `y_ppem' parameters are not reliable: */
+ /* There exist fonts (e.g. app850.fon) which have a wrong size for */
+ /* some subfonts; since FNT files don't contain ppem but dpi values */
+ /* the computed x_ppem and y_ppem numbers are thus wrong also. */
+ /* */
+ /* TrueType embedded bitmaps: */
+ /* `size', `width', and `height' values are not contained in the */
+ /* bitmap strike itself. They are computed from the global font */
+ /* parameters. */
/* */
typedef struct FT_Bitmap_Size_
{
FT_Short height;
FT_Short width;
+ FT_Pos size;
+
+ FT_Pos x_ppem;
+ FT_Pos y_ppem;
+
} FT_Bitmap_Size;
@@ -1911,7 +1947,6 @@ FT_BEGIN_HEADER
/* <Return> */
/* FreeType error code. 0 means success. */
/* */
- /* */
/* <Note> */
/* The values of `pixel_width' and `pixel_height' correspond to the */
/* pixel values of the _typographic_ character size, which are NOT */
@@ -1929,8 +1964,9 @@ FT_BEGIN_HEADER
/* */
/* For bitmap fonts, `pixel_height' usually is a reliable value for */
/* the height of the bitmap cell. Drivers for bitmap font formats */
- /* which contain a single bitmap strike only (BDF, PCF) ignore */
+ /* which contain a single bitmap strike only (BDF, PCF, FNT) ignore */
/* `pixel_width'. */
+ /* */
FT_EXPORT( FT_Error )
FT_Set_Pixel_Sizes( FT_Face face,
FT_UInt pixel_width,
@@ -2217,6 +2253,10 @@ FT_BEGIN_HEADER
/* conversion performed on the outline, as well as specific */
/* hinting optimizations. */
/* */
+ /* For bitmap fonts the `bitmap->pixel_mode' field in the */
+ /* @FT_GlyphSlotRec structure gives the format of the returned */
+ /* bitmap. */
+ /* */
/* <Values> */
/* FT_RENDER_MODE_NORMAL :: */
/* This is the default render mode; it corresponds to 8-bit */
diff --git a/include/freetype/ftimage.h b/include/freetype/ftimage.h
index 7115a06..b2a0a68 100644
--- a/include/freetype/ftimage.h
+++ b/include/freetype/ftimage.h
@@ -261,7 +261,8 @@ FT_BEGIN_HEADER
/* `FT_PIXEL_MODE_GRAY'; it gives the number of gray */
/* levels used in the bitmap. */
/* */
- /* pixel_mode :: The pixel_mode, i.e., how pixel bits are stored. */
+ /* pixel_mode :: The pixel mode, i.e., how pixel bits are stored. */
+ /* See @FT_Pixel_Mode for possible values. */
/* */
/* palette_mode :: This field is only used with paletted pixel modes; */
/* it indicates how the palette is stored. */
diff --git a/include/freetype/internal/fnttypes.h b/include/freetype/internal/fnttypes.h
index 6588188..3efa860 100644
--- a/include/freetype/internal/fnttypes.h
+++ b/include/freetype/internal/fnttypes.h
@@ -85,20 +85,10 @@ FT_BEGIN_HEADER
} FNT_FontRec, *FNT_Font;
- typedef struct FNT_SizeRec_
- {
- FT_SizeRec root;
- FNT_Font font;
-
- } FNT_SizeRec, *FNT_Size;
-
-
typedef struct FNT_FaceRec_
{
FT_FaceRec root;
-
- FT_UInt num_fonts;
- FNT_Font fonts;
+ FNT_Font font;
FT_CharMap charmap_handle;
FT_CharMapRec charmap; /* a single charmap per face */
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index 59169d4..f862df9 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -833,7 +833,7 @@
FT_Long face_index,
FT_Int num_params,
FT_Parameter* params,
- FT_Face* aface )
+ FT_Face *aface )
{
FT_Memory memory;
FT_Driver_Class clazz;
@@ -882,11 +882,10 @@
/* select Unicode charmap by default */
error2 = find_unicode_charmap( face );
- /* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle is
- * returned.
- */
+ /* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle */
+ /* is returned. */
- /* no error should happen, but we want to play safe. */
+ /* no error should happen, but we want to play safe */
if ( error2 && error2 != FT_Err_Invalid_CharMap_Handle )
{
error = error2;
diff --git a/src/base/ftwinfnt.c b/src/base/ftwinfnt.c
index d55597a..2cbe343 100644
--- a/src/base/ftwinfnt.c
+++ b/src/base/ftwinfnt.c
@@ -39,8 +39,8 @@
if ( driver->clazz && driver->clazz->module_name &&
ft_strcmp( driver->clazz->module_name, "winfonts" ) == 0 )
{
- FNT_Size size = (FNT_Size)face->size;
- FNT_Font font = size->font;
+ FNT_Face fnt_face = (FNT_Face)face;
+ FNT_Font font = fnt_face->font;
if ( font )
diff --git a/src/bdf/bdfdrivr.c b/src/bdf/bdfdrivr.c
index 0bd479c..fab1450 100644
--- a/src/bdf/bdfdrivr.c
+++ b/src/bdf/bdfdrivr.c
@@ -305,39 +305,47 @@ THE SOFTWARE.
if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
goto Exit;
- prop = bdf_get_font_property( font, "PIXEL_SIZE" );
- if ( prop != NULL )
- root->available_sizes->height = (short) prop->value.int32;
- else
{
+ FT_Bitmap_Size* bsize = root->available_sizes;
+
+
+ FT_MEM_ZERO( bsize, sizeof ( FT_Bitmap_Size ) );
+
+ prop = bdf_get_font_property( font, "PIXEL_SIZE" );
+ if ( prop != NULL )
+ bsize->height = (FT_Short)prop->value.int32;
+
+ prop = bdf_get_font_property( font, "AVERAGE_WIDTH" );
+ if ( prop != NULL )
+ bsize->width = (FT_Short)( ( prop->value.int32 + 5 ) / 10 );
+
prop = bdf_get_font_property( font, "POINT_SIZE" );
if ( prop != NULL )
- {
- bdf_property_t *yres;
+ /* convert from 722,7 decipoints to 72 points per inch */
+ bsize->size =
+ (FT_Pos)( ( prop->value.int32 * 64 * 7200 + 36135L ) / 72270L );
+ prop = bdf_get_font_property( font, "RESOLUTION_X" );
+ if ( prop != NULL )
+ bsize->x_ppem =
+ (FT_Pos)( ( prop->value.int32 * bsize->size + 36 ) / 72 );
- yres = bdf_get_font_property( font, "RESOLUTION_Y" );
- if ( yres != NULL )
- {
- FT_TRACE4(( "POINT_SIZE: %d RESOLUTION_Y: %d\n",
- prop->value.int32, yres->value.int32 ));
- root->available_sizes->height =
- (FT_Short)( prop->value.int32 * yres->value.int32 / 720 );
- }
- }
- }
+ prop = bdf_get_font_property( font, "RESOLUTION_Y" );
+ if ( prop != NULL )
+ bsize->y_ppem =
+ (FT_Pos)( ( prop->value.int32 * bsize->size + 36 ) / 72 );
- if ( root->available_sizes->height == 0 )
- {
- /* some fonts have broken SIZE declaration (jiskan24.bdf) */
- FT_ERROR(( "BDF_Face_Init: reading size\n" ));
- root->available_sizes->height = (FT_Short)font->point_size;
- }
+ if ( bsize->height == 0 )
+ bsize->height =
+ (FT_Short)( ( bsize->size * bsize->y_ppem + 2048 ) / 64 / 64 );
- /* `width' is just an enumeration value for different bitmap strikes */
- /* in a single font. Since a BDF font has a single strike only, */
- /* make this value the same as the height. */
- root->available_sizes->width = root->available_sizes->height;
+ if ( bsize->height == 0 )
+ {
+ /* some fonts have a broken SIZE declaration (jiskan24.bdf) */
+ FT_ERROR(( "BDF_Face_Init: reading size\n" ));
+ bsize->height = (FT_Short)font->point_size;
+ }
+ }
/* encoding table */
{
diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c
index 1738840..54929b7 100644
--- a/src/cff/cffdrivr.c
+++ b/src/cff/cffdrivr.c
@@ -165,7 +165,7 @@
/* glyph_index :: The index of the glyph in the font file. */
/* */
/* load_flags :: A flag indicating what to load for this glyph. The */
- /* FTLOAD_??? constants can be used to control the */
+ /* FT_LOAD_??? constants can be used to control the */
/* glyph loading process (e.g., whether the outline */
/* should be scaled, whether to load bitmaps or not, */
/* whether to hint the outline, etc). */
@@ -267,7 +267,7 @@
((FT_Byte*)buffer)[len] = 0;
}
- FT_FREE ( gname );
+ FT_FREE( gname );
error = CFF_Err_Ok;
Exit:
diff --git a/src/pcf/pcfread.c b/src/pcf/pcfread.c
index 46002f9..df8f5fd 100644
--- a/src/pcf/pcfread.c
+++ b/src/pcf/pcfread.c
@@ -921,7 +921,7 @@ THE SOFTWARE.
PCF_Property prop;
- root->num_faces = 1;
+ root->num_faces = 1;
root->face_index = 0;
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
FT_FACE_FLAG_HORIZONTAL |
@@ -983,33 +983,44 @@ THE SOFTWARE.
if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
goto Exit;
- prop = pcf_find_property( face, "PIXEL_SIZE" );
- if ( prop != NULL )
- root->available_sizes->height = (FT_Short)( prop->value.integer );
- else
{
+ FT_Bitmap_Size* bsize = root->available_sizes;
+
+
+ FT_MEM_ZERO( bsize, sizeof ( FT_Bitmap_Size ) );
+
+ prop = pcf_find_property( face, "PIXEL_SIZE" );
+ if ( prop != NULL )
+ bsize->height = (FT_Short)prop->value.integer;
+
+ prop = pcf_find_property( face, "AVERAGE_WIDTH" );
+ if ( prop != NULL )
+ bsize->width = (FT_Short)( ( prop->value.integer + 5 ) / 10 );
+
prop = pcf_find_property( face, "POINT_SIZE" );
if ( prop != NULL )
- {
- PCF_Property yres;
+ /* convert from 722,7 decipoints to 72 points per inch */
+ bsize->size =
+ (FT_Pos)( ( prop->value.integer * 64 * 7200 + 36135L ) / 72270L );
+ prop = pcf_find_property( face, "RESOLUTION_X" );
+ if ( prop != NULL )
+ bsize->x_ppem =
+ (FT_Pos)( ( prop->value.integer * bsize->size + 36 ) / 72 );
- yres = pcf_find_property( face, "RESOLUTION_Y" );
- if ( yres != NULL )
- root->available_sizes->height =
- (FT_Short)( prop->value.integer *
- yres->value.integer / 720 );
- }
- }
+ prop = pcf_find_property( face, "RESOLUTION_Y" );
+ if ( prop != NULL )
+ bsize->y_ppem =
+ (FT_Pos)( ( prop->value.integer * bsize->size + 36 ) / 72 );
- if ( root->available_sizes->height == 0 )
- root->available_sizes->height = 12;
+ if ( bsize->height == 0 )
+ bsize->height =
+ (FT_Short)( ( bsize->size * bsize->y_ppem + 2048 ) / 64 / 64 );
+
+ if ( bsize->height == 0 )
+ bsize->height = 12;
+ }
- /* `width' is just an enumeration value for different bitmap strikes */
- /* in a single font. Since a PCF font has a single strike only, */
- /* make this value the same as the height. */
- root->available_sizes->width = root->available_sizes->height;
-
/* set up charset */
{
PCF_Property charset_registry = 0, charset_encoding = 0;
diff --git a/src/sfnt/sfobjs.c b/src/sfnt/sfobjs.c
index 796d747..bfb0794 100644
--- a/src/sfnt/sfobjs.c
+++ b/src/sfnt/sfobjs.c
@@ -640,11 +640,23 @@
for ( n = 0 ; n < face->num_sbit_strikes ; n++ )
{
- root->available_sizes[n].width =
- face->sbit_strikes[n].x_ppem;
-
- root->available_sizes[n].height =
- face->sbit_strikes[n].y_ppem;
+ FT_Bitmap_Size* bsize = root->available_sizes + n;
+ TT_SBit_Strike strike = face->sbit_strikes + n;
+ FT_UShort fupem = face->header.Units_Per_EM;
+ FT_Short height = face->horizontal.Ascender -
+ face->horizontal.Descender +
+ face->horizontal.Line_Gap;
+ FT_Short avg = face->os2.xAvgCharWidth;
+
+
+ /* assume 72dpi */
+ bsize->height =
+ (FT_Short)( ( height * strike->y_ppem + fupem/2 ) / fupem );
+ bsize->width =
+ (FT_Short)( ( avg * strike->y_ppem + fupem/2 ) / fupem );
+ bsize->size = strike->y_ppem << 6;
+ bsize->x_ppem = strike->x_ppem << 6;
+ bsize->y_ppem = strike->y_ppem << 6;
}
}
else
@@ -663,7 +675,7 @@
if ( has_outline == TRUE )
{
/* XXX What about if outline header is missing */
- /* (e.g. sfnt wrapped outline)? */
+ /* (e.g. sfnt wrapped bitmap)? */
root->bbox.xMin = face->header.xMin;
root->bbox.yMin = face->header.yMin;
root->bbox.xMax = face->header.xMax;
diff --git a/src/winfonts/winfnt.c b/src/winfonts/winfnt.c
index 70d0972..b2e315f 100644
--- a/src/winfonts/winfnt.c
+++ b/src/winfonts/winfnt.c
@@ -113,14 +113,21 @@
static void
- fnt_font_done( FNT_Font font,
- FT_Stream stream )
+ fnt_font_done( FNT_Face face )
{
+ FT_Memory memory = FT_FACE( face )->memory;
+ FT_Stream stream = FT_FACE( face )->stream;
+ FNT_Font font = face->font;
+
+
+ if ( !font )
+ return;
+
if ( font->fnt_frame )
FT_FRAME_RELEASE( font->fnt_frame );
- font->fnt_size = 0;
- font->fnt_frame = 0;
+ FT_FREE( font );
+ face->font = 0;
}
@@ -164,11 +171,7 @@
goto Exit;
}
- /* small fixup -- some fonts have the `pixel_width' field set to 0 */
- if ( header->pixel_width == 0 )
- header->pixel_width = header->pixel_height;
-
- /* this is a FNT file/table, we now extract its frame */
+ /* this is a FNT file/table; extract its frame */
if ( FT_STREAM_SEEK( font->offset ) ||
FT_FRAME_EXTRACT( header->file_size, font->fnt_frame ) )
goto Exit;
@@ -178,25 +181,9 @@
}
- static void
- fnt_face_done_fonts( FNT_Face face )
- {
- FT_Memory memory = FT_FACE( face )->memory;
- FT_Stream stream = FT_FACE( face )->stream;
- FNT_Font cur = face->fonts;
- FNT_Font limit = cur + face->num_fonts;
-
-
- for ( ; cur < limit; cur++ )
- fnt_font_done( cur, stream );
-
- FT_FREE( face->fonts );
- face->num_fonts = 0;
- }
-
-
static FT_Error
- fnt_face_get_dll_fonts( FNT_Face face )
+ fnt_face_get_dll_font( FNT_Face face,
+ FT_Int face_index )
{
FT_Error error;
FT_Stream stream = FT_FACE( face )->stream;
@@ -204,10 +191,9 @@
WinMZ_HeaderRec mz_header;
- face->fonts = 0;
- face->num_fonts = 0;
+ face->font = 0;
- /* does it begin with a MZ header? */
+ /* does it begin with an MZ header? */
if ( FT_STREAM_SEEK( 0 ) ||
FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
goto Exit;
@@ -215,7 +201,7 @@
error = FNT_Err_Unknown_File_Format;
if ( mz_header.magic == WINFNT_MZ_MAGIC )
{
- /* yes, now look for a NE header in the file */
+ /* yes, now look for an NE header in the file */
WinNE_HeaderRec ne_header;
@@ -226,16 +212,15 @@
error = FNT_Err_Unknown_File_Format;
if ( ne_header.magic == WINFNT_NE_MAGIC )
{
- /* good, now look in the resource table for each FNT resource */
- FT_ULong res_offset = mz_header.lfanew +
- ne_header.resource_tab_offset;
-
+ /* good, now look into the resource table for each FNT resource */
+ FT_ULong res_offset = mz_header.lfanew +
+ ne_header.resource_tab_offset;
FT_UShort size_shift;
FT_UShort font_count = 0;
FT_ULong font_offset = 0;
- if ( FT_STREAM_SEEK( res_offset ) ||
+ if ( FT_STREAM_SEEK( res_offset ) ||
FT_FRAME_ENTER( ne_header.rname_tab_offset -
ne_header.resource_tab_offset ) )
goto Exit;
@@ -253,7 +238,7 @@
count = FT_GET_USHORT_LE();
- if ( type_id == 0x8008 )
+ if ( type_id == 0x8008U )
{
font_count = count;
font_offset = (FT_ULong)( FT_STREAM_POS() + 4 +
@@ -263,6 +248,7 @@
stream->cursor += 4 + count * 12;
}
+
FT_FRAME_EXIT();
if ( !font_count || !font_offset )
@@ -272,50 +258,36 @@
goto Exit;
}
- if ( FT_STREAM_SEEK( font_offset ) ||
- FT_NEW_ARRAY( face->fonts, font_count ) )
- goto Exit;
+ face->root.num_faces = font_count;
- face->num_fonts = font_count;
-
- if ( FT_FRAME_ENTER( (FT_Long)font_count * 12 ) )
+ if ( face_index >= font_count )
+ {
+ error = FNT_Err_Bad_Argument;
goto Exit;
+ }
- /* now read the offset and position of each FNT font */
- {
- FNT_Font cur = face->fonts;
- FNT_Font limit = cur + font_count;
+ if ( FT_NEW( face->font ) )
+ goto Exit;
+ if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) ||
+ FT_FRAME_ENTER( 12 ) )
+ goto Fail;
- for ( ; cur < limit; cur++ )
- {
- cur->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
- cur->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
- cur->size_shift = size_shift;
- stream->cursor += 8;
- }
- }
- FT_FRAME_EXIT();
+ face->font->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
+ face->font->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
+ face->font->size_shift = size_shift;
- /* finally, try to load each font there */
- {
- FNT_Font cur = face->fonts;
- FNT_Font limit = cur + font_count;
+ stream->cursor += 8;
+ FT_FRAME_EXIT();
- for ( ; cur < limit; cur++ )
- {
- error = fnt_font_load( cur, stream );
- if ( error )
- goto Fail;
- }
- }
+ error = fnt_font_load( face->font, stream );
}
}
Fail:
if ( error )
- fnt_face_done_fonts( face );
+ fnt_font_done( face );
Exit:
return error;
@@ -335,7 +307,7 @@
fnt_cmap_init( FNT_CMap cmap )
{
FNT_Face face = (FNT_Face)FT_CMAP_FACE( cmap );
- FNT_Font font = face->fonts;
+ FNT_Font font = face->font;
cmap->first = (FT_UInt32) font->header.first_char;
@@ -354,8 +326,8 @@
char_code -= cmap->first;
if ( char_code < cmap->count )
- gindex = char_code + 1;
-
+ gindex = char_code + 1; /* we artificially increase the glyph index; */
+ /* FNT_Load_Glyph reverts to the right one */
return gindex;
}
@@ -408,7 +380,7 @@
FT_Memory memory = FT_FACE_MEMORY( face );
- fnt_face_done_fonts( face );
+ fnt_font_done( face );
FT_FREE( face->root.available_sizes );
face->root.num_fixed_sizes = 0;
@@ -427,23 +399,22 @@
FT_UNUSED( num_params );
FT_UNUSED( params );
- FT_UNUSED( face_index );
- /* try to load several fonts from a DLL */
- error = fnt_face_get_dll_fonts( face );
+ /* try to load font from a DLL */
+ error = fnt_face_get_dll_font( face, face_index );
if ( error )
{
- /* this didn't work, now try to load a single FNT font */
+ /* this didn't work; try to load a single FNT font */
FNT_Font font;
- if ( FT_NEW( face->fonts ) )
+ if ( FT_NEW( face->font ) )
goto Exit;
- face->num_fonts = 1;
- font = face->fonts;
+ face->root.num_faces = 1;
+ font = face->font;
font->offset = 0;
font->fnt_size = stream->size;
@@ -452,43 +423,45 @@
goto Fail;
}
- /* all right, one or more fonts were loaded; we now need to */
- /* fill the root FT_Face fields with relevant information */
+ /* we now need to fill the root FT_Face fields */
+ /* with relevant information */
{
- FT_Face root = FT_FACE( face );
- FNT_Font fonts = face->fonts;
- FNT_Font limit = fonts + face->num_fonts;
- FNT_Font cur;
+ FT_Face root = FT_FACE( face );
+ FNT_Font font = face->font;
- root->num_faces = 1;
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
FT_FACE_FLAG_HORIZONTAL;
- if ( fonts->header.avg_width == fonts->header.max_width )
+ if ( font->header.avg_width == font->header.max_width )
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
- if ( fonts->header.italic )
+ if ( font->header.italic )
root->style_flags |= FT_STYLE_FLAG_ITALIC;
- if ( fonts->header.weight >= 800 )
+ if ( font->header.weight >= 800 )
root->style_flags |= FT_STYLE_FLAG_BOLD;
- /* Setup the `fixed_sizes' array */
- if ( FT_NEW_ARRAY( root->available_sizes, face->num_fonts ) )
+ /* set up the `fixed_sizes' array */
+ if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
goto Fail;
- root->num_fixed_sizes = face->num_fonts;
+ root->num_fixed_sizes = 1;
{
- FT_Bitmap_Size* size = root->available_sizes;
-
-
- for ( cur = fonts; cur < limit; cur++, size++ )
- {
- size->width = cur->header.pixel_width;
- size->height = cur->header.pixel_height;
- }
+ FT_Bitmap_Size* bsize = root->available_sizes;
+
+
+ bsize->width = font->header.avg_width;
+ bsize->height =
+ font->header.pixel_height + font->header.external_leading;
+ bsize->size = font->header.nominal_point_size << 6;
+ bsize->x_ppem =
+ (FT_Pos)( ( font->header.horizontal_resolution * bsize->size + 36 )
+ / 72 );
+ bsize->y_ppem =
+ (FT_Pos)( ( font->header.vertical_resolution* bsize->size + 36 )
+ / 72 );
}
{
@@ -513,11 +486,13 @@
}
/* setup remaining flags */
- root->num_glyphs = fonts->header.last_char -
- fonts->header.first_char + 1;
- root->family_name = (FT_String*)fonts->fnt_frame +
- fonts->header.face_name_offset;
+ /* reserve one slot for the .notdef glyph at index 0 */
+ root->num_glyphs = font->header.last_char -
+ font->header.first_char + 1 + 1;
+
+ root->family_name = (FT_String*)font->fnt_frame +
+ font->header.face_name_offset;
root->style_name = (char *)"Regular";
if ( root->style_flags & FT_STYLE_FLAG_BOLD )
@@ -541,80 +516,58 @@
static FT_Error
- FNT_Size_Set_Pixels( FNT_Size size )
+ FNT_Size_Set_Pixels( FT_Size size )
{
- /* look up a font corresponding to the current pixel size */
- FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
- FNT_Font cur = face->fonts;
- FNT_Font limit = cur + face->num_fonts;
- FNT_Font hit;
-
+ FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
+ FT_Face root = FT_FACE( face );
- size->font = 0;
- hit = 0;
- for ( ; cur < limit; cur++ )
+ if ( size->metrics.y_ppem == root->available_sizes->height )
{
- if ( cur->header.pixel_height == size->root.metrics.y_ppem )
- {
- hit = cur;
- break;
- }
- }
+ FNT_Font font = face->font;
- /* try to find a better hit */
- for ( ; cur < limit; cur++ )
- {
- if ( cur->header.pixel_height == size->root.metrics.y_ppem &&
- cur->header.pixel_width == size->root.metrics.x_ppem )
- {
- hit = cur;
- break;
- }
- }
- if ( hit ) {
- size->font = hit;
- size->root.metrics.ascender = hit->header.ascent * 64;
- size->root.metrics.descender = ( hit->header.pixel_height -
- hit->header.ascent ) * 64;
- size->root.metrics.height = hit->header.pixel_height * 64;
- size->root.metrics.max_advance = hit->header.max_width * 64;
- }
+ size->metrics.ascender = font->header.ascent * 64;
+ size->metrics.descender = ( font->header.pixel_height -
+ font->header.ascent ) * 64;
+ size->metrics.height = font->header.pixel_height * 64;
+ size->metrics.max_advance = font->header.max_width * 64;
- return ( size->font ? FNT_Err_Ok : FNT_Err_Invalid_Pixel_Size );
+ return FNT_Err_Ok;
+ }
+ else
+ return FNT_Err_Invalid_Pixel_Size;
}
static FT_Error
FNT_Load_Glyph( FT_GlyphSlot slot,
- FNT_Size size,
+ FT_Size size,
FT_UInt glyph_index,
FT_Int32 load_flags )
{
- FNT_Font font = size->font;
- FT_Error error = 0;
+ FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
+ FNT_Font font = face->font;
+ FT_Error error = FNT_Err_Ok;
FT_Byte* p;
FT_Int len;
FT_Bitmap* bitmap = &slot->bitmap;
FT_ULong offset;
FT_Bool new_format;
- FT_UNUSED( slot );
FT_UNUSED( load_flags );
- if ( !font )
+ if ( !face || !font )
{
error = FNT_Err_Invalid_Argument;
goto Exit;
}
if ( glyph_index > 0 )
- glyph_index--;
+ glyph_index--; /* revert to real index */
else
- glyph_index = font->header.default_char;
- glyph_index -= font->header.first_char;
+ glyph_index = font->header.default_char; /* the .notdef glyph */
new_format = FT_BOOL( font->header.version == 0x300 );
len = new_format ? 6 : 4;
@@ -699,7 +652,7 @@
},
sizeof( FNT_FaceRec ),
- sizeof( FNT_SizeRec ),
+ sizeof( FT_SizeRec ),
sizeof( FT_GlyphSlotRec ),
(FT_Face_InitFunc) FNT_Face_Init,