mirror of
https://github.com/servo/servo.git
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ba8f923201
The two significant changes here are 1) a commit that frees memory used to perform memory reporting once the reporting is complete, 2) memory reporting for the system font service. There are various other commits that remove `#[ignore_malloc_size_of]` attributes for data that we are now able to measure, but they do not significantly change our measurements when testing servo.org. Testing: Comparing the output of about:memory on servo.org. --------- Signed-off-by: Josh Matthews <josh@joshmatthews.net>
104 lines
3.4 KiB
Rust
104 lines
3.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use std::fs::File;
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use std::io::Read;
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use std::path::PathBuf;
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use app_units::Au;
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use euclid::num::Zero;
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use fonts::platform::font::PlatformFont;
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use fonts::{
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Font, FontData, FontDescriptor, FontIdentifier, FontTemplate, FontTemplateRef,
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PlatformFontMethods, ShapingFlags, ShapingOptions,
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};
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use servo_url::ServoUrl;
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use style::properties::longhands::font_variant_caps::computed_value::T as FontVariantCaps;
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use style::values::computed::{FontStretch, FontStyle, FontWeight};
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use unicode_script::Script;
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fn make_font(path: PathBuf) -> Font {
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let mut bytes = Vec::new();
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File::open(path.clone())
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.expect("Couldn't open font file!")
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.read_to_end(&mut bytes)
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.unwrap();
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let data = FontData::from_bytes(&bytes);
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let identifier = FontIdentifier::Web(ServoUrl::from_file_path(path).unwrap());
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let platform_font = PlatformFont::new_from_data(identifier.clone(), &data, None).unwrap();
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let template = FontTemplate {
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identifier,
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descriptor: platform_font.descriptor(),
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stylesheet: None,
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};
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let descriptor = FontDescriptor {
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weight: FontWeight::normal(),
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stretch: FontStretch::hundred(),
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style: FontStyle::normal(),
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variant: FontVariantCaps::Normal,
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pt_size: Au::from_px(24),
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};
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Font::new(FontTemplateRef::new(template), descriptor, Some(data), None).unwrap()
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}
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#[test]
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fn test_font_can_do_fast_shaping() {
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let dejavu_sans = make_font(
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[
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env!("CARGO_MANIFEST_DIR"),
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"tests",
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"support",
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"dejavu-fonts-ttf-2.37",
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"ttf",
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"DejaVuSans.ttf",
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]
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.iter()
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.collect(),
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);
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let dejavu_sans_fast_shapeable = make_font(
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[
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env!("CARGO_MANIFEST_DIR"),
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"tests",
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"support",
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"dejavu-fonts-ttf-2.37",
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"ttf",
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"DejaVuSansNoGSUBNoGPOS.ttf",
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]
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.iter()
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.collect(),
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);
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// Fast shaping requires a font with a kern table and no GPOS or GSUB tables.
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let shaping_options = ShapingOptions {
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letter_spacing: None,
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word_spacing: Au::zero(),
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script: Script::Latin,
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flags: ShapingFlags::empty(),
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};
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assert!(!dejavu_sans.can_do_fast_shaping("WAVE", &shaping_options));
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assert!(dejavu_sans_fast_shapeable.can_do_fast_shaping("WAVE", &shaping_options));
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// Non-Latin script should never have fast shaping.
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let shaping_options = ShapingOptions {
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letter_spacing: None,
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word_spacing: Au::zero(),
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script: Script::Cherokee,
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flags: ShapingFlags::empty(),
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};
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assert!(!dejavu_sans.can_do_fast_shaping("WAVE", &shaping_options));
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assert!(!dejavu_sans_fast_shapeable.can_do_fast_shaping("WAVE", &shaping_options));
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// Right-to-left text should never use fast shaping.
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let shaping_options = ShapingOptions {
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letter_spacing: None,
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word_spacing: Au::zero(),
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script: Script::Latin,
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flags: ShapingFlags::RTL_FLAG,
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};
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assert!(!dejavu_sans.can_do_fast_shaping("WAVE", &shaping_options));
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assert!(!dejavu_sans_fast_shapeable.can_do_fast_shaping("WAVE", &shaping_options));
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}
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