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Math simplifications.

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* src/cf2blues.c (cf2_blues_init): Use `FT_MulDiv'.
* src/cf2ft.c (cf2_getScaleAndHintFlag): Use simple division.
This commit is contained in:
Alexei Podtelezhnikov 2014-02-28 09:24:26 +01:00 committed by Werner Lemberg
parent 135c3faebb
commit 6adda68a75
4 changed files with 16 additions and 12 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2014-02-28 Alexei Podtelezhnikov <apodtele@gmail.com>
[cff] Math simplifications.
* src/cf2blues.c (cf2_blues_init): Use `FT_MulDiv'.
* src/cf2ft.c (cf2_getScaleAndHintFlag): Use simple division.
2014-02-28 Dave Arnold <darnold@adobe.com>
[cff] Fix Savannah bug #41697, part 2.

11
src/cff/cf2blues.c
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@ -4,7 +4,7 @@
/* */
/* Adobe's code for handling Blue Zones (body). */
/* */
/* Copyright 2009-2013 Adobe Systems Incorporated. */
/* Copyright 2009-2014 Adobe Systems Incorporated. */
/* */
/* This software, and all works of authorship, whether in source or */
/* object code form as indicated by the copyright notice(s) included */
@ -408,11 +408,10 @@
/* Note: constant changed from 0.5 to 0.6 to avoid a problem with */
/* 10ppem Arial */
blues->boost = FT_MulFix(
cf2_floatToFixed( .6 ),
( cf2_intToFixed( 1 ) -
FT_DivFix( blues->scale,
blues->blueScale ) ) );
blues->boost = cf2_floatToFixed( .6 ) -
FT_MulDiv( cf2_floatToFixed ( .6 ),
blues->scale,
blues->blueScale );
if ( blues->boost > 0x7FFF )
{
/* boost must remain less than 0.5, or baseline could go negative */

8
src/cff/cf2ft.c
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@ -4,7 +4,7 @@
/* */
/* FreeType Glue Component to Adobe's Interpreter (body). */
/* */
/* Copyright 2013 Adobe Systems Incorporated. */
/* Copyright 2013-2014 Adobe Systems Incorporated. */
/* */
/* This software, and all works of authorship, whether in source or */
/* object code form as indicated by the copyright notice(s) included */
@ -238,10 +238,8 @@
if ( *hinted )
{
*x_scale = FT_DivFix( decoder->builder.glyph->x_scale,
cf2_intToFixed( 64 ) );
*y_scale = FT_DivFix( decoder->builder.glyph->y_scale,
cf2_intToFixed( 64 ) );
*x_scale = ( decoder->builder.glyph->x_scale + 32 ) / 64;
*y_scale = ( decoder->builder.glyph->y_scale + 32 ) / 64;
}
else
{

2
src/cff/cf2hints.c
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@ -4,7 +4,7 @@
/* */
/* Adobe's code for handling CFF hints (body). */
/* */
/* Copyright 2007-2013 Adobe Systems Incorporated. */
/* Copyright 2007-2014 Adobe Systems Incorporated. */
/* */
/* This software, and all works of authorship, whether in source or */
/* object code form as indicated by the copyright notice(s) included */