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[paint] Avoid div-by-zero

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pull/3991/head
Behdad Esfahbod 2 years ago
parent 4e94b65cff
commit 99da0e6cc3
1 changed files with 3 additions and 2 deletions
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  1. 5
      src/hb-paint.hh

5
src/hb-paint.hh
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@ -141,8 +141,8 @@ struct hb_paint_funcs_t
void push_root_transform (void *paint_data, void push_root_transform (void *paint_data,
const hb_font_t *font) const hb_font_t *font)
{ {
int xscale = font->x_scale, yscale = font->y_scale;
float upem = font->face->get_upem (); float upem = font->face->get_upem ();
int xscale = font->x_scale, yscale = font->y_scale;
float slant = font->slant_xy; float slant = font->slant_xy;
func.push_transform (this, paint_data, func.push_transform (this, paint_data,
@ -158,8 +158,9 @@ struct hb_paint_funcs_t
void push_inverse_root_transform (void *paint_data, void push_inverse_root_transform (void *paint_data,
hb_font_t *font) hb_font_t *font)
{ {
int xscale = font->x_scale, yscale = font->y_scale;
float upem = font->face->get_upem (); float upem = font->face->get_upem ();
int xscale = font->x_scale ? font->x_scale : upem;
int yscale = font->y_scale ? font->y_scale : upem;
float slant = font->slant_xy; float slant = font->slant_xy;
func.push_transform (this, paint_data, func.push_transform (this, paint_data,

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