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[VORG] Hook up to hb-ot-font's v_origin 

Fixes https://github.com/harfbuzz/harfbuzz/issues/544

Test added with NotoSansCJK, eg. with U+FF38.
This commit is contained in:
Behdad Esfahbod 2018-10-23 02:19:32 -07:00
parent 097ecfd4a9
commit 48ed598a35
5 changed files with 14 additions and 5 deletions
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1
src/hb-ot-face.cc
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@ -31,7 +31,6 @@
#include "hb-ot-hmtx-table.hh"
#include "hb-ot-kern-table.hh"
#include "hb-ot-post-table.hh"
#include "hb-ot-vorg-table.hh"
#include "hb-ot-color-cbdt-table.hh"
#include "hb-ot-layout-gdef-table.hh"
#include "hb-ot-layout-gsub-table.hh"

11
src/hb-ot-font.cc
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@ -37,6 +37,7 @@
#include "hb-ot-kern-table.hh"
#include "hb-ot-post-table.hh"
#include "hb-ot-glyf-table.hh"
#include "hb-ot-vorg-table.hh"
#include "hb-ot-color-cbdt-table.hh"
@ -138,9 +139,15 @@ hb_ot_get_glyph_v_origin (hb_font_t *font,
*x = font->get_glyph_h_advance (glyph) / 2;
const OT::VORG &VORG = *ot_face->VORG.get ();
if (VORG.has_data ())
{
*y = font->em_scale_y (VORG.get_y_origin (glyph));
return true;
}
hb_glyph_extents_t extents = {0};
bool ret = ot_face->glyf->get_extents (glyph, &extents);
if (ret)
if (ot_face->glyf->get_extents (glyph, &extents))
{
const OT::vmtx_accelerator_t &vmtx = *ot_face->vmtx.get ();
hb_position_t tsb = vmtx.get_side_bearing (glyph);

6
src/hb-ot-vorg-table.hh
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@ -39,7 +39,7 @@ namespace OT {
struct VertOriginMetric
{
inline int cmp (hb_codepoint_t g) const { return -glyph.cmp (g); }
inline int cmp (hb_codepoint_t g) const { return glyph.cmp (g); }
inline bool sanitize (hb_sanitize_context_t *c) const
{
@ -63,7 +63,9 @@ struct VORG
inline int get_y_origin (hb_codepoint_t glyph) const
{
vertYOrigins.bsearch (glyph);
int i = vertYOrigins.bsearch (glyph);
if (i != -1)
return vertYOrigins[i].vertOriginY;
return defaultVertOriginY;
}

BIN
test/shaping/data/in-house/fonts/4cbbc461be066fccc611dcc634af6e8cb2705537.ttf Normal file
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1
test/shaping/data/in-house/tests/vertical.tests
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@ -1,3 +1,4 @@
../fonts/191826b9643e3f124d865d617ae609db6a2ce203.ttf:--direction=t --font-funcs=ft:U+300C:[uni300C.vert=0@-512,-578+0,-1024]
../fonts/f9b1dd4dcb515e757789a22cb4241107746fd3d0.ttf:--direction=t --font-funcs=ft:U+0041,U+0042:[gid1=0@-654,-2128+0,-2789|gid2=1@-665,-2125+0,-2789]
../fonts/f9b1dd4dcb515e757789a22cb4241107746fd3d0.ttf:--direction=t --font-funcs=ot:U+0041,U+0042:[gid1=0@-654,-1468+0,-2048|gid2=1@-665,-1462+0,-2048]
../fonts/4cbbc461be066fccc611dcc634af6e8cb2705537.ttf:--direction=t --font-funcs=ot:U+FF38:[gid2=0@-500,-867+0,-1000]