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Don't unnecessarily construct gfxFontFeatureValueSet

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If there is no font feature values inside document we should avoid creating
unnecessary objects.
This commit is contained in:
Nazım Can Altınova 2017-09-04 15:43:59 -07:00
parent 9b63fedf59
commit dd8af182c1
2 changed files with 18 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

10
components/style/gecko/generated/bindings.rs
View file

@ -913,6 +913,10 @@ extern "C" {
extern "C" {
pub fn Gecko_nsFont_Destroy(dst: *mut nsFont);
}
extern "C" {
pub fn Gecko_ConstructFontFeatureValueSet()
-> *mut gfxFontFeatureValueSet;
}
extern "C" {
pub fn Gecko_AppendFeatureValueHashEntry(value_set:
*mut gfxFontFeatureValueSet,
@ -2047,10 +2051,8 @@ extern "C" {
}
extern "C" {
pub fn Servo_StyleSet_BuildFontFeatureValueSet(set:
RawServoStyleSetBorrowed,
list:
*mut gfxFontFeatureValueSet)
-> bool;
RawServoStyleSetBorrowed)
-> *mut gfxFontFeatureValueSet;
}
extern "C" {
pub fn Servo_StyleSet_ResolveForDeclarations(set:

19
ports/geckolib/glue.rs
View file

@ -47,6 +47,7 @@ use style::gecko_bindings::bindings::{ServoCssRulesBorrowed, ServoCssRulesStrong
use style::gecko_bindings::bindings::{nsACString, nsAString, nsCSSPropertyIDSetBorrowedMut};
use style::gecko_bindings::bindings::Gecko_AddPropertyToSet;
use style::gecko_bindings::bindings::Gecko_AppendPropertyValuePair;
use style::gecko_bindings::bindings::Gecko_ConstructFontFeatureValueSet;
use style::gecko_bindings::bindings::Gecko_GetOrCreateFinalKeyframe;
use style::gecko_bindings::bindings::Gecko_GetOrCreateInitialKeyframe;
use style::gecko_bindings::bindings::Gecko_GetOrCreateKeyframeAtStart;
@ -3555,26 +3556,30 @@ pub extern "C" fn Servo_StyleSet_GetCounterStyleRule(raw_data: RawServoStyleSetB
#[no_mangle]
pub extern "C" fn Servo_StyleSet_BuildFontFeatureValueSet(
raw_data: RawServoStyleSetBorrowed,
set: *mut gfxFontFeatureValueSet
) -> bool {
raw_data: RawServoStyleSetBorrowed) -> *mut gfxFontFeatureValueSet {
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
let global_style_data = &*GLOBAL_STYLE_DATA;
let guard = global_style_data.shared_lock.read();
let has_rule = data.extra_style_data
.iter_origins()
.any(|(d, _)| !d.font_feature_values.is_empty());
if !has_rule {
return ptr::null_mut();
}
let font_feature_values_iter = data.extra_style_data
.iter_origins_rev()
.flat_map(|(d, _)| d.font_feature_values.iter());
let mut any_rule = false;
let set = unsafe { Gecko_ConstructFontFeatureValueSet() };
for src in font_feature_values_iter {
any_rule = true;
let rule = src.read_with(&guard);
rule.set_at_rules(set);
}
any_rule
set
}
#[no_mangle]