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[base] Compute MD5 checksums only if explicitly requested. 

This improves profiling accuracy.

* src/base/ftobjs.c (FT_Render_Glyph_Internal): Implement it.
This commit is contained in:
Werner Lemberg 2015-10-15 16:58:13 +02:00
parent 6de2a355ff
commit e03214e166
2 changed files with 46 additions and 27 deletions
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ChangeLog
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@ -1,3 +1,11 @@
2015-10-15 Werner Lemberg <wl@gnu.org>
[base] Compute MD5 checksums only if explicitly requested.
This improves profiling accuracy.
* src/base/ftobjs.c (FT_Render_Glyph_Internal): Implement it.
2015-10-14 Werner Lemberg <wl@gnu.org>
[base] Use `FT_' namespace for MD5 functions (#42366).

11
src/base/ftobjs.c
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@ -4167,6 +4167,16 @@
#undef FT_COMPONENT
#define FT_COMPONENT trace_bitmap
/*
* Computing the MD5 checksum is expensive, unnecessarily distorting a
* possible profiling of FreeType if compiled with tracing support. For
* this reason, we execute the following code only if explicitly
* requested.
*/
/* we use FT_TRACE3 in this block */
if ( ft_trace_levels[trace_bitmap] >= 3 )
{
/* we convert to a single bitmap format for computing the checksum */
if ( !error )
{
@ -4201,6 +4211,7 @@
FT_Bitmap_Done( library, &bitmap );
}
}
#undef FT_COMPONENT
#define FT_COMPONENT trace_objs