On 02/12/15 01:32, Raimund Steger wrote:
[...]
I'll have a look at them over the weekend. I think it should be possible
to isolate the interesting part.
I've taken a look at
freetype-entire-infinality-patchset-20130514-01.patch now and I think
the relevant part is only the following (the patch contains other
changes to emboldening, but these address unrelated things like pixel
snapping):
diff --git a/src/base/ftsynth.c b/src/base/ftsynth.c
index 241d37f..3d5a593 100644
--- a/src/base/ftsynth.c
+++ b/src/base/ftsynth.c
@@ -141,6 +173,9 @@
slot->metrics.width += xstr;
slot->metrics.height += ystr;
+#ifdef FT_CONFIG_OPTION_INFINALITY_PATCHSET
+ if ( !use_various_tweaks )
+#endif
slot->metrics.horiAdvance += xstr;
slot->metrics.vertAdvance += ystr;
If I replace the "if ( !use_various_tweaks )" with "if (
!FT_IS_FIXED_WIDTH( face ) )", I seem to come up with a patch that keeps
the advance width for monospace fonts and leaves the rest unchanged.
(Suggestion attached; note it's only created with quilt from a 2.5.5
tarball.) I've put up screenshots of Lucida Console at
http://steg0.eu/saurus/2015/02.emboldenmono/.
Could this already be it...??
Raimund
--
Worringer Str 31 Duesseldorf 40211 DE home: <rs@xxxxxxxx>
+49-179-2981632 icq 16845346 work: <rs@xxxxxxxxxxxxxxx>
Index: freetype-2.5.5/src/base/ftsynth.c
===================================================================
--- freetype-2.5.5.orig/src/base/ftsynth.c 2014-11-26 18:45:48.000000000 +0100
+++ freetype-2.5.5/src/base/ftsynth.c 2015-02-14 11:46:28.929503116 +0100
@@ -150,7 +150,10 @@
slot->metrics.width += xstr;
slot->metrics.height += ystr;
- slot->metrics.horiAdvance += xstr;
+ /* for mono-width fonts (like Andale, Courier, etc.) we need */
+ /* to keep the original advance width */
+ if ( !FT_IS_FIXED_WIDTH( face ) )
+ slot->metrics.horiAdvance += xstr;
slot->metrics.vertAdvance += ystr;
slot->metrics.horiBearingY += ystr;
Index: freetype-2.5.5/include/ftsynth.h
===================================================================
--- freetype-2.5.5.orig/include/ftsynth.h 2014-12-02 13:11:52.000000000 +0100
+++ freetype-2.5.5/include/ftsynth.h 2015-02-14 13:12:50.014546469 +0100
@@ -62,8 +62,10 @@
/* a wrapper for @FT_Outline_Embolden and @FT_Bitmap_Embolden. */
/* */
/* For emboldened outlines the height, width, and advance metrics are */
- /* increased by the strength of the emboldening. You can also call */
- /* @FT_Outline_Get_CBox to get precise values. */
+ /* increased by the strength of the emboldening. (An exception to this */
+ /* are mono-width fonts, where the horizontal advance metrics are left */
+ /* unchanged.) You can also call @FT_Outline_Get_CBox to get precise */
+ /* values. */
FT_EXPORT( void )
FT_GlyphSlot_Embolden( FT_GlyphSlot slot );
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