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/* */ |
/* */ |
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/* FreeType PFR object methods (body). */ |
/* FreeType PFR object methods (body). */ |
6 |
/* */ |
/* */ |
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/* Copyright 2002, 2003, 2004 by */ |
/* Copyright 2002, 2003, 2004, 2005 by */ |
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
/* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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/* */ |
/* */ |
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/* This file is part of the FreeType project, and may only be used, */ |
/* This file is part of the FreeType project, and may only be used, */ |
361 |
metrics->vertBearingX = 0; |
metrics->vertBearingX = 0; |
362 |
metrics->vertBearingY = 0; |
metrics->vertBearingY = 0; |
363 |
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364 |
#if 0 /* some fonts seem to be broken here !! */ |
#if 0 /* some fonts seem to be broken here! */ |
365 |
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366 |
/* Apply the font matrix, if any. */ |
/* Apply the font matrix, if any. */ |
367 |
/* TODO: Test existing fonts with unusual matrix */ |
/* TODO: Test existing fonts with unusual matrix */ |
423 |
/*************************************************************************/ |
/*************************************************************************/ |
424 |
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|
425 |
#ifdef FT_OPTIMIZE_MEMORY |
#ifdef FT_OPTIMIZE_MEMORY |
426 |
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|
427 |
FT_LOCAL_DEF( FT_Error ) |
FT_LOCAL_DEF( FT_Error ) |
428 |
pfr_face_get_kerning( FT_Face pfrface, /* PFR_Face */ |
pfr_face_get_kerning( FT_Face pfrface, /* PFR_Face */ |
429 |
FT_UInt glyph1, |
FT_UInt glyph1, |
430 |
FT_UInt glyph2, |
FT_UInt glyph2, |
431 |
FT_Vector* kerning ) |
FT_Vector* kerning ) |
432 |
{ |
{ |
433 |
PFR_Face face = (PFR_Face)pfrface; |
PFR_Face face = (PFR_Face)pfrface; |
434 |
FT_Error error = PFR_Err_Ok; |
FT_Error error = PFR_Err_Ok; |
435 |
PFR_PhyFont phy_font = &face->phy_font; |
PFR_PhyFont phy_font = &face->phy_font; |
436 |
FT_UInt32 code1, code2, pair; |
FT_UInt32 code1, code2, pair; |
437 |
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|
438 |
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439 |
kerning->x = 0; |
kerning->x = 0; |
440 |
kerning->y = 0; |
kerning->y = 0; |
452 |
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|
453 |
code1 = phy_font->chars[glyph1].char_code; |
code1 = phy_font->chars[glyph1].char_code; |
454 |
code2 = phy_font->chars[glyph2].char_code; |
code2 = phy_font->chars[glyph2].char_code; |
455 |
pair = PFR_KERN_INDEX(code1,code2); |
pair = PFR_KERN_INDEX( code1, code2 ); |
456 |
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|
457 |
/* now search the list of kerning items */ |
/* now search the list of kerning items */ |
458 |
{ |
{ |
459 |
PFR_KernItem item = phy_font->kern_items; |
PFR_KernItem item = phy_font->kern_items; |
460 |
FT_Stream stream = pfrface->stream; |
FT_Stream stream = pfrface->stream; |
461 |
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462 |
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463 |
for ( ; item; item = item->next ) |
for ( ; item; item = item->next ) |
464 |
{ |
{ |
465 |
if ( pair >= item->pair1 && pair <= item->pair2 ) |
if ( pair >= item->pair1 && pair <= item->pair2 ) |
468 |
goto Exit; |
goto Exit; |
469 |
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|
470 |
FoundPair: /* we found an item, now parse it and find the value if any */ |
FoundPair: /* we found an item, now parse it and find the value if any */ |
471 |
if ( FT_STREAM_SEEK( item->offset ) || |
if ( FT_STREAM_SEEK( item->offset ) || |
472 |
FT_FRAME_ENTER( item->pair_count*item->pair_size ) ) |
FT_FRAME_ENTER( item->pair_count * item->pair_size ) ) |
473 |
goto Exit; |
goto Exit; |
474 |
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|
475 |
{ |
{ |
476 |
FT_UInt count = item->pair_count; |
FT_UInt count = item->pair_count; |
477 |
FT_UInt size = item->pair_size; |
FT_UInt size = item->pair_size; |
478 |
FT_UInt power = (FT_UInt)ft_highpow2( (FT_UInt32)count ); |
FT_UInt power = (FT_UInt)ft_highpow2( (FT_UInt32)count ); |
479 |
FT_UInt probe = power*size; |
FT_UInt probe = power * size; |
480 |
FT_UInt extra = count - power; |
FT_UInt extra = count - power; |
481 |
FT_Byte* base = stream->cursor; |
FT_Byte* base = stream->cursor; |
482 |
FT_Bool twobytes = item->flags & 1; |
FT_Bool twobytes = item->flags & 1; |
483 |
FT_Byte* p; |
FT_Byte* p; |
484 |
FT_UInt32 cpair; |
FT_UInt32 cpair; |
485 |
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486 |
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487 |
if ( extra > 0 ) |
if ( extra > 0 ) |
488 |
{ |
{ |
489 |
p = base + extra*size; |
p = base + extra * size; |
490 |
|
|
491 |
if ( twobytes ) |
if ( twobytes ) |
492 |
cpair = FT_NEXT_ULONG(p); |
cpair = FT_NEXT_ULONG( p ); |
493 |
else |
else |
494 |
cpair = PFR_NEXT_KPAIR(p); |
cpair = PFR_NEXT_KPAIR( p ); |
495 |
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|
496 |
if ( cpair == pair ) |
if ( cpair == pair ) |
497 |
goto Found; |
goto Found; |
504 |
{ |
{ |
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probe >>= 1; |
probe >>= 1; |
506 |
p = base + probe; |
p = base + probe; |
507 |
|
|
508 |
if ( twobytes ) |
if ( twobytes ) |
509 |
cpair = FT_NEXT_ULONG(p); |
cpair = FT_NEXT_ULONG( p ); |
510 |
else |
else |
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cpair = PFR_NEXT_KPAIR(p); |
cpair = PFR_NEXT_KPAIR( p ); |
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|
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if ( cpair == pair ) |
if ( cpair == pair ) |
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goto Found; |
goto Found; |
518 |
} |
} |
519 |
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p = base; |
p = base; |
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522 |
if ( twobytes ) |
if ( twobytes ) |
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cpair = FT_NEXT_ULONG(p); |
cpair = FT_NEXT_ULONG( p ); |
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else |
else |
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cpair = PFR_NEXT_KPAIR(p); |
cpair = PFR_NEXT_KPAIR( p ); |
526 |
|
|
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if ( cpair == pair ) |
if ( cpair == pair ) |
528 |
{ |
{ |
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FT_Int value; |
FT_Int value; |
530 |
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531 |
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Found: |
Found: |
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if ( item->flags & 2 ) |
if ( item->flags & 2 ) |
534 |
value = FT_PEEK_SHORT(p); |
value = FT_PEEK_SHORT( p ); |
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else |
else |
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value = p[0]; |
value = p[0]; |
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547 |
} |
} |
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#else /* !FT_OPTIMIZE_MEMORY */ |
#else /* !FT_OPTIMIZE_MEMORY */ |
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FT_LOCAL_DEF( FT_Error ) |
FT_LOCAL_DEF( FT_Error ) |
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pfr_face_get_kerning( FT_Face pfrface, /* PFR_Face */ |
pfr_face_get_kerning( FT_Face pfrface, /* PFR_Face */ |
553 |
FT_UInt glyph1, |
FT_UInt glyph1, |
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return error; |
return error; |
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} |
} |
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#endif /* !FT_OPTIMIZE_MEMORY */ |
#endif /* !FT_OPTIMIZE_MEMORY */ |
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/* END */ |
/* END */ |