Fix incorrect advance width scaling (#52683). * src/base/ftadvance.c (FT_Get_Advances): Always respect the FT_LOAD_NO_SCALE flag if present.
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diff --git a/ChangeLog b/ChangeLog
index 78be02a..82830ad 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2017-12-17 Jonathan Kew <jfkthame@gmail.com>
+
+ Fix incorrect advance width scaling (#52683).
+
+ * src/base/ftadvance.c (FT_Get_Advances): Always respect the
+ FT_LOAD_NO_SCALE flag if present.
+
2017-12-16 Alexei Podtelezhnikov <apodtele@gmail.com>
* builds/windows/vc2010/freetype.vcxproj: AfterBuild copy.
diff --git a/src/base/ftadvanc.c b/src/base/ftadvanc.c
index 1557607..d066142 100644
--- a/src/base/ftadvanc.c
+++ b/src/base/ftadvanc.c
@@ -116,9 +116,12 @@
FT_Int32 flags,
FT_Fixed *padvances )
{
+ FT_Error error = FT_Err_Ok;
+
FT_Face_GetAdvancesFunc func;
- FT_UInt num, end, nn;
- FT_Error error = FT_Err_Ok;
+
+ FT_UInt num, end, nn;
+ FT_Int factor;
if ( !face )
@@ -152,16 +155,17 @@
return FT_THROW( Unimplemented_Feature );
flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY;
+ factor = ( flags & FT_LOAD_NO_SCALE ) ? 1 : 1024;
for ( nn = 0; nn < count; nn++ )
{
error = FT_Load_Glyph( face, start + nn, flags );
if ( error )
break;
- /* scale from 26.6 to 16.16 */
+ /* scale from 26.6 to 16.16, unless NO_SCALE was requested */
padvances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT )
- ? face->glyph->advance.y * 1024
- : face->glyph->advance.x * 1024;
+ ? face->glyph->advance.y * factor
+ : face->glyph->advance.x * factor;
}
return error;