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[paint-extents] Hook it up, kinda

This commit is contained in:
Behdad Esfahbod 2022-12-23 16:20:44 -07:00
parent 7fbaaebe8b
commit 47c896f004
2 changed files with 35 additions and 6 deletions
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25
src/hb-ft-colr.hh
View File

@ -457,15 +457,29 @@ hb_ft_paint_glyph_colr (hb_font_t *font,
&paint)) &paint))
{ {
FT_ClipBox clip_box; FT_ClipBox clip_box;
bool has_clip; if (FT_Get_Color_Glyph_ClipBox (ft_face, gid, &clip_box))
has_clip = FT_Get_Color_Glyph_ClipBox (ft_face, gid, &clip_box);
if (has_clip)
paint_funcs->push_clip_rectangle (paint_data, paint_funcs->push_clip_rectangle (paint_data,
clip_box.bottom_left.x - font->slant_xy * clip_box.bottom_left.y, clip_box.bottom_left.x - font->slant_xy * clip_box.bottom_left.y,
clip_box.bottom_left.y, clip_box.bottom_left.y,
clip_box.top_right.x - font->slant_xy * clip_box.top_right.y, clip_box.top_right.x - font->slant_xy * clip_box.top_right.y,
clip_box.top_right.y); clip_box.top_right.y);
else
{
/* XXX Untested. */
auto *extents_funcs = hb_paint_extents_get_funcs ();
hb_paint_extents_context_t extents_data;
hb_ft_paint_context_t c (ft_font, font,
extents_funcs, &extents_data,
palette, foreground);
_hb_ft_paint (&c, paint);
paint_funcs->push_clip_rectangle (paint_data,
extents_data.groups.tail().extents.xmin,
extents_data.groups.tail().extents.ymin,
extents_data.groups.tail().extents.xmax,
extents_data.groups.tail().extents.ymax);
hb_paint_funcs_destroy (extents_funcs);
}
paint_funcs->push_root_transform (paint_data, font); paint_funcs->push_root_transform (paint_data, font);
@ -475,8 +489,7 @@ hb_ft_paint_glyph_colr (hb_font_t *font,
_hb_ft_paint (&c, paint); _hb_ft_paint (&c, paint);
paint_funcs->pop_root_transform (paint_data); paint_funcs->pop_root_transform (paint_data);
if (has_clip) paint_funcs->pop_clip (paint_data);
paint_funcs->pop_clip (paint_data);
return true; return true;
} }

16
src/hb-ot-color-colr-table.hh
View File

@ -33,6 +33,7 @@
#include "hb-ot-layout-common.hh" #include "hb-ot-layout-common.hh"
#include "hb-ot-var-common.hh" #include "hb-ot-var-common.hh"
#include "hb-paint.hh" #include "hb-paint.hh"
#include "hb-paint-extents.hh"
/* /*
* COLR -- Color * COLR -- Color
@ -1997,6 +1998,21 @@ struct COLR
return true; return true;
} }
#if 0
/* This currently goes into infinite recursion. */
auto *extents_funcs = hb_paint_extents_get_funcs ();
hb_paint_extents_context_t extents_data;
paint_glyph (font, glyph, extents_funcs, &extents_data, 0, HB_COLOR(0,0,0,0));
extents_data.groups.tail().extents.xmin,
extents_data.groups.tail().extents.ymin,
extents_data.groups.tail().extents.xmax,
extents_data.groups.tail().extents.ymax;
hb_paint_funcs_destroy (extents_funcs);
#endif
return false; return false;
} }