forked from AuroraMiddleware/gtk
csscalcvalue: Avoid allocating memory in compute()
We already know how many values we're going to have, it's value->n_terms.
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@ -50,22 +50,21 @@ gtk_css_value_calc_free (GtkCssValue *value)
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static GtkCssValue *gtk_css_calc_value_new (gsize n_terms);
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static GtkCssValue *
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gtk_css_value_new_from_array (GPtrArray *array)
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gtk_css_value_new_from_array (GtkCssValue **values,
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guint n_values)
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{
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GtkCssValue *result;
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if (array->len > 1)
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if (n_values > 1)
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{
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result = gtk_css_calc_value_new (array->len);
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memcpy (result->terms, array->pdata, array->len * sizeof (GtkCssValue *));
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result = gtk_css_calc_value_new (n_values);
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memcpy (result->terms, values, n_values * sizeof (GtkCssValue *));
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}
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else
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{
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result = g_ptr_array_index (array, 0);
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result = values[0];
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}
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g_ptr_array_free (array, TRUE);
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return result;
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}
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@ -105,26 +104,28 @@ gtk_css_value_calc_compute (GtkCssValue *value,
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GtkCssStyle *parent_style)
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{
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GtkCssValue *result;
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GPtrArray *array;
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gboolean changed = FALSE;
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gsize i;
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GtkCssValue **new_values;
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new_values = g_alloca (sizeof (GtkCssValue *) * value->n_terms);
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array = g_ptr_array_new ();
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for (i = 0; i < value->n_terms; i++)
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{
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GtkCssValue *computed = _gtk_css_value_compute (value->terms[i], property_id, provider, style, parent_style);
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changed |= computed != value->terms[i];
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gtk_css_calc_array_add (array, computed);
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new_values[i] = computed;
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}
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if (changed)
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{
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result = gtk_css_value_new_from_array (array);
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result = gtk_css_value_new_from_array (new_values, value->n_terms);
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}
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else
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{
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g_ptr_array_set_free_func (array, (GDestroyNotify) _gtk_css_value_unref);
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g_ptr_array_free (array, TRUE);
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for (i = 0; i < value->n_terms; i++)
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gtk_css_value_unref (new_values[i]);
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result = _gtk_css_value_ref (value);
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}
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@ -279,6 +280,7 @@ gtk_css_calc_value_new_sum (GtkCssValue *value1,
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GtkCssValue *value2)
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{
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GPtrArray *array;
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GtkCssValue *result;
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gsize i;
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array = g_ptr_array_new ();
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@ -307,7 +309,10 @@ gtk_css_calc_value_new_sum (GtkCssValue *value1,
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gtk_css_calc_array_add (array, _gtk_css_value_ref (value2));
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}
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return gtk_css_value_new_from_array (array);
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result = gtk_css_value_new_from_array ((GtkCssValue **)array->pdata, array->len);
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g_ptr_array_free (array, TRUE);
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return result;
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}
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GtkCssValue * gtk_css_calc_value_parse_sum (GtkCssParser *parser,
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