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[pdf] Copy the glyphs for use within an smask group.

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When constructing an smask group using PDF_SHOW_GLYPHS, we need a copy
of the glyphs else they'll be freed be we use them (in _show_page()).
This commit is contained in:
Chris Wilson 2008-04-04 12:53:13 +01:00
parent a74db7e7bc
commit c0593d16c7
1 changed files with 8 additions and 1 deletions
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9
src/cairo-pdf-surface.c
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@ -731,6 +731,8 @@ _cairo_pdf_smask_group_destroy (cairo_pdf_smask_group_t *group)
cairo_pattern_destroy (group->source);
if (group->mask)
cairo_pattern_destroy (group->mask);
if (group->glyphs)
free (group->glyphs);
if (group->scaled_font)
cairo_scaled_font_destroy (group->scaled_font);
free (group);
@ -4627,7 +4629,12 @@ _cairo_pdf_surface_show_glyphs (void *abstract_surface,
group->operation = PDF_SHOW_GLYPHS;
group->source = cairo_pattern_reference (source);
group->source_res = pattern_res;
group->glyphs = glyphs;
group->glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t));
if (group->glyphs == NULL) {
_cairo_pdf_smask_group_destroy (group);
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
}
memcpy (group->glyphs, glyphs, sizeof (cairo_glyph_t) * num_glyphs);
group->num_glyphs = num_glyphs;
group->scaled_font = cairo_scaled_font_reference (scaled_font);
status = _cairo_pdf_surface_add_smask_group (surface, group);