css: Reshuffle the inner loop of value computationmatthiasc/css-value-inner-loop

The loop over all properties in gtk_css_static_style_compute_values
is the inner loop of the css value computation, we hit it thousands
of times per frame. Rearrange things to make this faster, by avoiding
function calls, pulling the section handling out of the separate loop,
and handling the border-width special case in a neater way.

Before: 50 runs, min 12.45, max 20.419, avg 15.9414
After:  50 runs, min 12.622, max 21.195, avg 15.0449

1 files changed, 7 insertions, 0 deletions

diff --git a/gtk/gtkcssstylepropertyprivate.h b/gtk/gtkcssstylepropertyprivate.h
index 005ada4e70..f089c09995 100644
--- a/gtk/gtkcssstylepropertyprivate.h
+++ b/gtk/gtkcssstylepropertyprivate.h
@@ -80,6 +80,13 @@ void                    _gtk_css_style_property_print_value     (GtkCssStyleProp
                                                                  GtkCssValue            *value,
                                                                  GString                *string);
 
+extern gboolean inherit_properties[];
+
+inline gboolean         gtk_css_style_property_is_inherit (uint id)
+{
+  return inherit_properties[id];
+}
+
 /* XXX - find a better place for these */
 GtkCssValue * gtk_css_font_family_value_parse (GtkCssParser *parser);
 GtkCssValue * gtk_css_font_size_value_parse   (GtkCssParser *parser);