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Optimize positioning for when h_origin is nil

This commit is contained in:
Behdad Esfahbod 2015-11-04 21:53:16 -08:00
parent 762770c964
commit 5bc28b5f68
1 changed files with 20 additions and 18 deletions
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38
src/hb-ot-shape.cc
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@ -654,22 +654,22 @@ hb_ot_position_default (hb_ot_shape_context_t *c)
if (HB_DIRECTION_IS_HORIZONTAL (direction))
{
for (unsigned int i = 0; i < count; i++)
{
pos[i].x_advance = c->font->get_glyph_h_advance (info[i].codepoint);
c->font->subtract_glyph_h_origin (info[i].codepoint,
&pos[i].x_offset,
&pos[i].y_offset);
}
if (c->font->has_glyph_h_origin_func ())
for (unsigned int i = 0; i < count; i++)
c->font->subtract_glyph_h_origin (info[i].codepoint,
&pos[i].x_offset,
&pos[i].y_offset);
}
else
{
for (unsigned int i = 0; i < count; i++)
{
pos[i].y_advance = c->font->get_glyph_v_advance (info[i].codepoint);
c->font->subtract_glyph_v_origin (info[i].codepoint,
&pos[i].x_offset,
&pos[i].y_offset);
}
if (c->font->has_glyph_v_origin_func ())
for (unsigned int i = 0; i < count; i++)
c->font->subtract_glyph_v_origin (info[i].codepoint,
&pos[i].x_offset,
&pos[i].y_offset);
}
if (c->buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_HAS_SPACE_FALLBACK)
_hb_ot_shape_fallback_spaces (c->plan, c->font, c->buffer);
@ -719,17 +719,19 @@ hb_ot_position_complex (hb_ot_shape_context_t *c)
/* Change glyph origin to what GPOS expects (horizontal), apply GPOS, change it back. */
for (unsigned int i = 0; i < count; i++)
c->font->add_glyph_h_origin (info[i].codepoint,
&pos[i].x_offset,
&pos[i].y_offset);
if (c->font->has_glyph_h_origin_func ())
for (unsigned int i = 0; i < count; i++)
c->font->add_glyph_h_origin (info[i].codepoint,
&pos[i].x_offset,
&pos[i].y_offset);
c->plan->position (c->font, c->buffer);
for (unsigned int i = 0; i < count; i++)
c->font->subtract_glyph_h_origin (info[i].codepoint,
&pos[i].x_offset,
&pos[i].y_offset);
if (c->font->has_glyph_h_origin_func ())
for (unsigned int i = 0; i < count; i++)
c->font->subtract_glyph_h_origin (info[i].codepoint,
&pos[i].x_offset,
&pos[i].y_offset);
ret = true;
}