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Short-circuit more of compute_damage

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This commit is contained in:
Matt Brubeck 2016-03-21 12:18:35 -07:00
parent 9813d11f86
commit c2c3b30f87
1 changed files with 31 additions and 37 deletions
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68
components/layout/incremental.rs
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@ -145,6 +145,9 @@ macro_rules! add_if_not_equal(
[ $($effect:ident),* ], [ $($style_struct_getter:ident.$name:ident),* ]) => ({
if $( ($old.$style_struct_getter().$name != $new.$style_struct_getter().$name) )||* {
$damage.insert($($effect)|*);
true
} else {
false
}
})
);
@ -157,46 +160,19 @@ pub fn compute_damage(old: Option<&Arc<ComputedValues>>, new: &ComputedValues) -
let mut damage = RestyleDamage::empty();
// This checks every CSS property, as enumerated in
// impl<'self> CssComputedStyle<'self>
// in src/support/netsurfcss/rust-netsurfcss/netsurfcss.rc.
// This should check every CSS property, as enumerated in the fields of
// http://doc.servo.org/style/properties/struct.ComputedValues.html
// FIXME: We can short-circuit more of this.
add_if_not_equal!(old, new, damage,
[ REPAINT ], [
get_color.color, get_background.background_color,
get_border.border_top_color, get_border.border_right_color,
get_border.border_bottom_color, get_border.border_left_color,
get_effects.transform, get_box.z_index
]);
add_if_not_equal!(old, new, damage,
[ REPAINT, STORE_OVERFLOW, REFLOW_OUT_OF_FLOW ], [
get_positionoffsets.top, get_positionoffsets.left,
get_positionoffsets.right, get_positionoffsets.bottom
]);
add_if_not_equal!(old, new, damage,
[ REPAINT, STORE_OVERFLOW, BUBBLE_ISIZES, REFLOW_OUT_OF_FLOW, REFLOW ], [
get_border.border_top_width, get_border.border_right_width,
get_border.border_bottom_width, get_border.border_left_width,
get_margin.margin_top, get_margin.margin_right,
get_margin.margin_bottom, get_margin.margin_left,
get_padding.padding_top, get_padding.padding_right,
get_padding.padding_bottom, get_padding.padding_left,
get_box.width, get_box.height,
get_inheritedtext.text_align, get_text.text_decoration, get_inheritedbox.line_height
]);
// FIXME: Test somehow that every property is included.
add_if_not_equal!(old, new, damage,
[
REPAINT,
STORE_OVERFLOW,
BUBBLE_ISIZES,
REFLOW_OUT_OF_FLOW,
REFLOW,
RECONSTRUCT_FLOW
REPAINT,
STORE_OVERFLOW,
BUBBLE_ISIZES,
REFLOW_OUT_OF_FLOW,
REFLOW,
RECONSTRUCT_FLOW
], [
get_box.float, get_box.display, get_box.position, get_box.content,
get_counters.counter_reset, get_counters.counter_increment,
@ -208,6 +184,25 @@ pub fn compute_damage(old: Option<&Arc<ComputedValues>>, new: &ComputedValues) -
get_inheritedtext.text_transform, get_inheritedtext.word_spacing,
get_font.font_family, get_font.font_style, get_font.font_variant, get_font.font_weight,
get_font.font_size, get_font.font_stretch
]) || add_if_not_equal!(old, new, damage,
[ REPAINT, STORE_OVERFLOW, BUBBLE_ISIZES, REFLOW_OUT_OF_FLOW, REFLOW ],
[get_border.border_top_width, get_border.border_right_width,
get_border.border_bottom_width, get_border.border_left_width,
get_margin.margin_top, get_margin.margin_right,
get_margin.margin_bottom, get_margin.margin_left,
get_padding.padding_top, get_padding.padding_right,
get_padding.padding_bottom, get_padding.padding_left,
get_box.width, get_box.height,
get_inheritedtext.text_align, get_text.text_decoration, get_inheritedbox.line_height
]) || add_if_not_equal!(old, new, damage,
[ REPAINT, STORE_OVERFLOW, REFLOW_OUT_OF_FLOW ], [
get_positionoffsets.top, get_positionoffsets.left,
get_positionoffsets.right, get_positionoffsets.bottom
]) || add_if_not_equal!(old, new, damage,
[ REPAINT ], [
get_color.color, get_background.background_color,
get_border.border_top_color, get_border.border_right_color,
get_border.border_bottom_color, get_border.border_left_color
]);
// If the layer requirements of this flow have changed due to the value
@ -216,7 +211,6 @@ pub fn compute_damage(old: Option<&Arc<ComputedValues>>, new: &ComputedValues) -
damage.insert(RestyleDamage::rebuild_and_reflow());
}
// FIXME: test somehow that we checked every CSS property
damage
}