Commit 4a46686508160d5d131b1d84bc33327f24cdea22
2015-08-12T23:45:40
[type1,cff,cid] Streamline font matrix application. * src/type1/t1gload.c (T1_Load_Glyph): Directly modify advances only if font matrix is not trivial. * src/cff/cffgload.c (cff_slot_load): Ditto. * sff/cid/cidgload.c (cid_slot_load_glyph): Ditto for advances and the entire outline.
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diff --git a/ChangeLog b/ChangeLog
index 4221676..e2a62d7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2015-08-12 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [type1,cff,cid] Streamline font matrix application.
+
+ * src/type1/t1gload.c (T1_Load_Glyph): Directly modify advances only
+ if font matrix is not trivial.
+ * src/cff/cffgload.c (cff_slot_load): Ditto.
+ * sff/cid/cidgload.c (cid_slot_load_glyph): Ditto for advances and the
+ entire outline.
+
2015-08-11 Werner Lemberg <wl@gnu.org>
[builds/unix] Minor.
diff --git a/src/cff/cffgload.c b/src/cff/cffgload.c
index a075ddc..5f57403 100644
--- a/src/cff/cffgload.c
+++ b/src/cff/cffgload.c
@@ -2949,7 +2949,6 @@
{
FT_BBox cbox;
FT_Glyph_Metrics* metrics = &glyph->root.metrics;
- FT_Vector advance;
FT_Bool has_vertical_info;
@@ -3014,26 +3013,27 @@
glyph->root.outline.flags |= FT_OUTLINE_REVERSE_FILL;
- if ( !( font_matrix.xx == 0x10000L &&
- font_matrix.yy == 0x10000L &&
- font_matrix.xy == 0 &&
- font_matrix.yx == 0 ) )
+ /* apply the font matrix, if any */
+ if ( font_matrix.xx != 0x10000L || font_matrix.yy != 0x10000L ||
+ font_matrix.xy != 0 || font_matrix.yx != 0 )
+ {
FT_Outline_Transform( &glyph->root.outline, &font_matrix );
- if ( !( font_offset.x == 0 &&
- font_offset.y == 0 ) )
- FT_Outline_Translate( &glyph->root.outline,
- font_offset.x, font_offset.y );
+ metrics->horiAdvance = FT_MulFix( metrics->horiAdvance,
+ font_matrix.xx );
+ metrics->vertAdvance = FT_MulFix( metrics->vertAdvance,
+ font_matrix.yy );
+ }
- advance.x = metrics->horiAdvance;
- advance.y = 0;
- FT_Vector_Transform( &advance, &font_matrix );
- metrics->horiAdvance = advance.x + font_offset.x;
+ if ( font_offset.x || font_offset.y )
+ {
+ FT_Outline_Translate( &glyph->root.outline,
+ font_offset.x,
+ font_offset.y );
- advance.x = 0;
- advance.y = metrics->vertAdvance;
- FT_Vector_Transform( &advance, &font_matrix );
- metrics->vertAdvance = advance.y + font_offset.y;
+ metrics->horiAdvance += font_offset.x;
+ metrics->vertAdvance += font_offset.y;
+ }
if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 || force_scaling )
{
diff --git a/src/cid/cidgload.c b/src/cid/cidgload.c
index d06293c..d00674f 100644
--- a/src/cid/cidgload.c
+++ b/src/cid/cidgload.c
@@ -357,7 +357,6 @@
{
FT_BBox cbox;
FT_Glyph_Metrics* metrics = &cidglyph->metrics;
- FT_Vector advance;
/* copy the _unscaled_ advance width */
@@ -377,22 +376,27 @@
if ( cidsize->metrics.y_ppem < 24 )
cidglyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION;
- /* apply the font matrix */
- FT_Outline_Transform( &cidglyph->outline, &font_matrix );
+ /* apply the font matrix, if any */
+ if ( font_matrix.xx != 0x10000L || font_matrix.yy != 0x10000L ||
+ font_matrix.xy != 0 || font_matrix.yx != 0 )
+ {
+ FT_Outline_Transform( &cidglyph->outline, &font_matrix );
- FT_Outline_Translate( &cidglyph->outline,
- font_offset.x,
- font_offset.y );
+ metrics->horiAdvance = FT_MulFix( metrics->horiAdvance,
+ font_matrix.xx );
+ metrics->vertAdvance = FT_MulFix( metrics->vertAdvance,
+ font_matrix.yy );
+ }
- advance.x = metrics->horiAdvance;
- advance.y = 0;
- FT_Vector_Transform( &advance, &font_matrix );
- metrics->horiAdvance = advance.x + font_offset.x;
+ if ( font_offset.x || font_offset.y )
+ {
+ FT_Outline_Translate( &cidglyph->outline,
+ font_offset.x,
+ font_offset.y );
- advance.x = 0;
- advance.y = metrics->vertAdvance;
- FT_Vector_Transform( &advance, &font_matrix );
- metrics->vertAdvance = advance.y + font_offset.y;
+ metrics->horiAdvance += font_offset.x;
+ metrics->vertAdvance += font_offset.y;
+ }
if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 )
{
diff --git a/src/type1/t1gload.c b/src/type1/t1gload.c
index 829e874..85ada2e 100644
--- a/src/type1/t1gload.c
+++ b/src/type1/t1gload.c
@@ -395,7 +395,6 @@
{
FT_BBox cbox;
FT_Glyph_Metrics* metrics = &t1glyph->metrics;
- FT_Vector advance;
/* copy the _unscaled_ advance width */
@@ -427,23 +426,26 @@
#if 1
/* apply the font matrix, if any */
- if ( font_matrix.xx != 0x10000L || font_matrix.yy != font_matrix.xx ||
- font_matrix.xy != 0 || font_matrix.yx != 0 )
+ if ( font_matrix.xx != 0x10000L || font_matrix.yy != 0x10000L ||
+ font_matrix.xy != 0 || font_matrix.yx != 0 )
+ {
FT_Outline_Transform( &t1glyph->outline, &font_matrix );
+ metrics->horiAdvance = FT_MulFix( metrics->horiAdvance,
+ font_matrix.xx );
+ metrics->vertAdvance = FT_MulFix( metrics->vertAdvance,
+ font_matrix.yy );
+ }
+
if ( font_offset.x || font_offset.y )
+ {
FT_Outline_Translate( &t1glyph->outline,
font_offset.x,
font_offset.y );
- advance.x = metrics->horiAdvance;
- advance.y = 0;
- FT_Vector_Transform( &advance, &font_matrix );
- metrics->horiAdvance = advance.x + font_offset.x;
- advance.x = 0;
- advance.y = metrics->vertAdvance;
- FT_Vector_Transform( &advance, &font_matrix );
- metrics->vertAdvance = advance.y + font_offset.y;
+ metrics->horiAdvance += font_offset.x;
+ metrics->vertAdvance += font_offset.y;
+ }
#endif
if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 )