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bug 715798 pt 2.1 - add patch for huge emoji support to the gfx/cairo directory (NPOTB)

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This commit is contained in:
Jonathan Kew 2012-10-23 10:05:53 +01:00
parent f02066c4bb
commit aa0dfab72a
2 changed files with 44 additions and 0 deletions
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2
gfx/cairo/README
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@ -218,6 +218,8 @@ pixman-dither.patch: Add dithering of 16 bit gradients
quartz-support-color-emoji-font.patch: support Apple Color Emoji font in cairo-quartz backend
use-show-text-glyphs-if-glyph-path-fails.patch: fall back to show_text_glyphs even at huge sizes if scaled_font_glyph_path didn't work
==== disable printing patch ====
disable-printing.patch: allows us to use NS_PRINTING to disable printing.

42
gfx/cairo/use-show-text-glyphs-if-glyph-path-fails.patch Normal file
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@ -0,0 +1,42 @@
From: Jonathan Kew <jkew@mozilla.com>
bug 715798 pt 2 - fall back to show_text_glyphs even at huge sizes if scaled_font_glyph_path didn't work. r=jrmuizel
diff --git a/gfx/cairo/cairo/src/cairo-gstate.c b/gfx/cairo/cairo/src/cairo-gstate.c
--- a/gfx/cairo/cairo/src/cairo-gstate.c
+++ b/gfx/cairo/cairo/src/cairo-gstate.c
@@ -2002,23 +2002,34 @@ cairo_status_t
cairo_path_fixed_t path;
_cairo_path_fixed_init (&path);
status = _cairo_scaled_font_glyph_path (gstate->scaled_font,
transformed_glyphs, num_glyphs,
&path);
- if (status == CAIRO_STATUS_SUCCESS) {
+ if (status == CAIRO_STATUS_SUCCESS && !_cairo_path_fixed_fill_is_empty (&path)) {
status = _cairo_surface_fill (gstate->target, op, pattern,
&path,
CAIRO_FILL_RULE_WINDING,
gstate->tolerance,
gstate->scaled_font->options.antialias,
_gstate_get_clip (gstate, &clip));
+ } else {
+ /* if _cairo_scaled_font_glyph_path() failed, maybe the font doesn't support
+ * returning paths, so try the _cairo_surface_show_text_glyphs() option
+ */
+ status = _cairo_surface_show_text_glyphs (gstate->target, op, pattern,
+ utf8, utf8_len,
+ transformed_glyphs, num_glyphs,
+ transformed_clusters, num_clusters,
+ cluster_flags,
+ gstate->scaled_font,
+ _gstate_get_clip (gstate, &clip));
}
_cairo_path_fixed_fini (&path);
}
_cairo_clip_fini (&clip);
CLEANUP_GLYPHS: