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Side by Side Diff: third_party/freetype/src/cff/cf2blues.c

Issue 815103002: Update freetype to 2.5.4. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Adjust GYP and GN Created 6 years ago
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1 /***************************************************************************/ 1 /***************************************************************************/
2 /* */ 2 /* */
3 /* cf2blues.c */ 3 /* cf2blues.c */
4 /* */ 4 /* */
5 /* Adobe's code for handling Blue Zones (body). */ 5 /* Adobe's code for handling Blue Zones (body). */
6 /* */ 6 /* */
7 /* Copyright 2009-2013 Adobe Systems Incorporated. */ 7 /* Copyright 2009-2014 Adobe Systems Incorporated. */
8 /* */ 8 /* */
9 /* This software, and all works of authorship, whether in source or */ 9 /* This software, and all works of authorship, whether in source or */
10 /* object code form as indicated by the copyright notice(s) included */ 10 /* object code form as indicated by the copyright notice(s) included */
11 /* herein (collectively, the "Work") is made available, and may only be */ 11 /* herein (collectively, the "Work") is made available, and may only be */
12 /* used, modified, and distributed under the FreeType Project License, */ 12 /* used, modified, and distributed under the FreeType Project License, */
13 /* LICENSE.TXT. Additionally, subject to the terms and conditions of the */ 13 /* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
14 /* FreeType Project License, each contributor to the Work hereby grants */ 14 /* FreeType Project License, each contributor to the Work hereby grants */
15 /* to any individual or legal entity exercising permissions granted by */ 15 /* to any individual or legal entity exercising permissions granted by */
16 /* the FreeType Project License and this section (hereafter, "You" or */ 16 /* the FreeType Project License and this section (hereafter, "You" or */
17 /* "Your") a perpetual, worldwide, non-exclusive, no-charge, */ 17 /* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
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30 /* */ 30 /* */
31 /* By using, modifying, or distributing the Work you indicate that you */ 31 /* By using, modifying, or distributing the Work you indicate that you */
32 /* have read and understood the terms and conditions of the */ 32 /* have read and understood the terms and conditions of the */
33 /* FreeType Project License as well as those provided in this section, */ 33 /* FreeType Project License as well as those provided in this section, */
34 /* and you accept them fully. */ 34 /* and you accept them fully. */
35 /* */ 35 /* */
36 /***************************************************************************/ 36 /***************************************************************************/
37 37
38 38
39 #include "cf2ft.h" 39 #include "cf2ft.h"
40 #include "../../include/freetype/internal/ftdebug.h" 40 #include FT_INTERNAL_DEBUG_H
41 41
42 #include "cf2blues.h" 42 #include "cf2blues.h"
43 #include "cf2hints.h" 43 #include "cf2hints.h"
44 #include "cf2font.h" 44 #include "cf2font.h"
45 45
46 46
47 /*************************************************************************/ 47 /*************************************************************************/
48 /* */ 48 /* */
49 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 49 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
50 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 50 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
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79 size_t numFamilyOtherBlues; 79 size_t numFamilyOtherBlues;
80 80
81 FT_Pos* blueValues; 81 FT_Pos* blueValues;
82 FT_Pos* otherBlues; 82 FT_Pos* otherBlues;
83 FT_Pos* familyBlues; 83 FT_Pos* familyBlues;
84 FT_Pos* familyOtherBlues; 84 FT_Pos* familyOtherBlues;
85 85
86 size_t i; 86 size_t i;
87 CF2_Fixed emBoxBottom, emBoxTop; 87 CF2_Fixed emBoxBottom, emBoxTop;
88 88
89 #if 0
89 CF2_Int unitsPerEm = font->unitsPerEm; 90 CF2_Int unitsPerEm = font->unitsPerEm;
90 91
91 92
92 if ( unitsPerEm == 0 ) 93 if ( unitsPerEm == 0 )
93 unitsPerEm = 1000; 94 unitsPerEm = 1000;
95 #endif
94 96
95 FT_ZERO( blues ); 97 FT_ZERO( blues );
96 blues->scale = font->innerTransform.d; 98 blues->scale = font->innerTransform.d;
97 99
98 cf2_getBlueMetrics( decoder, 100 cf2_getBlueMetrics( decoder,
99 &blues->blueScale, 101 &blues->blueScale,
100 &blues->blueShift, 102 &blues->blueShift,
101 &blues->blueFuzz ); 103 &blues->blueFuzz );
102 104
103 cf2_getBlueValues( decoder, &numBlueValues, &blueValues ); 105 cf2_getBlueValues( decoder, &numBlueValues, &blueValues );
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399 */ 401 */
400 402
401 if ( blues->scale < blues->blueScale ) 403 if ( blues->scale < blues->blueScale )
402 { 404 {
403 blues->suppressOvershoot = TRUE; 405 blues->suppressOvershoot = TRUE;
404 406
405 /* Change rounding threshold for `dsFlatEdge'. */ 407 /* Change rounding threshold for `dsFlatEdge'. */
406 /* Note: constant changed from 0.5 to 0.6 to avoid a problem with */ 408 /* Note: constant changed from 0.5 to 0.6 to avoid a problem with */
407 /* 10ppem Arial */ 409 /* 10ppem Arial */
408 410
409 blues->boost = FT_MulFix( 411 blues->boost = cf2_floatToFixed( .6 ) -
410 cf2_floatToFixed( .6 ), 412 FT_MulDiv( cf2_floatToFixed ( .6 ),
411 ( cf2_intToFixed( 1 ) - 413 blues->scale,
412 FT_DivFix( blues->scale, 414 blues->blueScale );
413 blues->blueScale ) ) );
414 if ( blues->boost > 0x7FFF ) 415 if ( blues->boost > 0x7FFF )
415 { 416 {
416 /* boost must remain less than 0.5, or baseline could go negative */ 417 /* boost must remain less than 0.5, or baseline could go negative */
417 blues->boost = 0x7FFF; 418 blues->boost = 0x7FFF;
418 } 419 }
419 } 420 }
420 421
421 /* boost and darkening have similar effects; don't do both */ 422 /* boost and darkening have similar effects; don't do both */
422 if ( font->stemDarkened ) 423 if ( font->stemDarkened )
423 blues->boost = 0; 424 blues->boost = 0;
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569 topHintEdge->dsCoord += dsMove; 570 topHintEdge->dsCoord += dsMove;
570 cf2_hint_lock( topHintEdge ); 571 cf2_hint_lock( topHintEdge );
571 } 572 }
572 } 573 }
573 574
574 return captured; 575 return captured;
575 } 576 }
576 577
577 578
578 /* END */ 579 /* END */
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