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[cid, type1, type42] Clean up units_per_EM calculations.

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* src/cid/cidload.c (cid_parse_font_matrix): Updated.
* src/type1/t1load.c (t1_parse_font_matrix): Updated.
* src/type42/t42parse.c (t42_parse_font_matrix): Updated.
This commit is contained in:
Alexei Podtelezhnikov 2012-11-27 21:36:20 -05:00
parent 72e976d415
commit 79180ad049
4 changed files with 16 additions and 9 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2012-11-27 Alexei Podtelezhnikov <apodtele@gmail.com>
[cid, type1, type42] Clean up units_per_EM calculations.
* src/cid/cidload.c (cid_parse_font_matrix): Updated.
* src/type1/t1load.c (t1_parse_font_matrix): Updated.
* src/type42/t42parse.c (t42_parse_font_matrix): Updated.
2012-11-27 Alexei Podtelezhnikov <apodtele@gmail.com>
[ftstroke] Minor improvement.

10
src/cid/cidload.c
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@ -168,11 +168,11 @@
temp_scale = FT_ABS( temp[3] );
/* Set units per EM based on FontMatrix values. We set the value to */
/* `1000/temp_scale', because temp_scale was already multiplied by */
/* 1000 (in `t1_tofixed', from psobjs.c). */
root->units_per_EM = (FT_UShort)( FT_DivFix( 0x10000L,
FT_DivFix( temp_scale, 1000 ) ) );
/* Set Units per EM based on FontMatrix values. We set the value to */
/* 1000 / temp_scale, because temp_scale was already multiplied by */
/* 1000 (in t1_tofixed, from psobjs.c). */
root->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale );
/* we need to scale the values by 1.0/temp[3] */
if ( temp_scale != 0x10000L )

3
src/type1/t1load.c
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@ -1131,8 +1131,7 @@
/* 1000 / temp_scale, because temp_scale was already multiplied by */
/* 1000 (in t1_tofixed, from psobjs.c). */
root->units_per_EM = (FT_UShort)( FT_DivFix( 1000 * 0x10000L,
temp_scale ) >> 16 );
root->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale );
/* we need to scale the values by 1.0/temp_scale */
if ( temp_scale != 0x10000L )

3
src/type42/t42parse.c
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@ -265,8 +265,7 @@
/* 1000 / temp_scale, because temp_scale was already multiplied by */
/* 1000 (in t1_tofixed, from psobjs.c). */
root->units_per_EM = (FT_UShort)( FT_DivFix( 1000 * 0x10000L,
temp_scale ) >> 16 );
root->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale );
/* we need to scale the values by 1.0/temp_scale */
if ( temp_scale != 0x10000L )