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[scaled-font] Really ignore ctm translation

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Previously we were ignoring ctm translation in scaled fonts when hashing, but
still storing it into the scaled font.  Now we zero the translation components
when storing.
This commit is contained in:
Behdad Esfahbod 2007-02-07 00:20:29 -08:00
parent a394e5870e
commit d55da1aa62
1 changed files with 5 additions and 3 deletions
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8
src/cairo-scaled-font.c Normal file → Executable file
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@ -297,14 +297,16 @@ _cairo_scaled_font_init_key (cairo_scaled_font_t *scaled_font,
scaled_font->font_face = font_face;
scaled_font->font_matrix = *font_matrix;
scaled_font->ctm = *ctm;
/* ignore translation values in the ctm */
scaled_font->ctm.x0 = 0.;
scaled_font->ctm.y0 = 0.;
scaled_font->options = *options;
/* We do a bytewise hash on the font matrices, ignoring the
* translation values in the ctm */
/* We do a bytewise hash on the font matrices */
hash = _hash_bytes_fnv ((unsigned char *)(&scaled_font->font_matrix.xx),
sizeof(cairo_matrix_t), hash);
hash = _hash_bytes_fnv ((unsigned char *)(&scaled_font->ctm.xx),
sizeof(double) * 4, hash);
sizeof(cairo_matrix_t), hash);
hash ^= (unsigned long) scaled_font->font_face;