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This commit is contained in:
Behdad Esfahbod 2016-01-12 13:05:01 +00:00
parent 505b7d4732
commit d163dc18e6
1 changed files with 15 additions and 15 deletions
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30
src/hb-ot-layout-common-private.hh
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@ -1170,6 +1170,21 @@ struct Device
inline hb_position_t get_y_delta (hb_font_t *font) const
{ return get_delta (font->y_ppem, font->y_scale); }
inline unsigned int get_size (void) const
{
unsigned int f = deltaFormat;
if (unlikely (f < 1 || f > 3 || startSize > endSize)) return 3 * USHORT::static_size;
return USHORT::static_size * (4 + ((endSize - startSize) >> (4 - f)));
}
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) && c->check_range (this, this->get_size ()));
}
private:
inline int get_delta (unsigned int ppem, int scale) const
{
if (!ppem) return 0;
@ -1180,8 +1195,6 @@ struct Device
return (int) (pixels * (int64_t) scale / ppem);
}
inline int get_delta_pixels (unsigned int ppem_size) const
{
unsigned int f = deltaFormat;
@ -1205,19 +1218,6 @@ struct Device
return delta;
}
inline unsigned int get_size (void) const
{
unsigned int f = deltaFormat;
if (unlikely (f < 1 || f > 3 || startSize > endSize)) return 3 * USHORT::static_size;
return USHORT::static_size * (4 + ((endSize - startSize) >> (4 - f)));
}
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) && c->check_range (this, this->get_size ()));
}
protected:
USHORT startSize; /* Smallest size to correct--in ppem */
USHORT endSize; /* Largest size to correct--in ppem */