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Backed out changeset e64e659c077d: servo PR #18809 and revendor for reftest failures, e.g. in layout/reftests/bugs/392435-1.html. r=backout on a CLOSED TREE

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Backs out https://github.com/servo/servo/pull/18809
This commit is contained in:
Gecko Backout 2017-10-19 21:26:51 +00:00 • committed by moz-servo-sync
parent fe16c1d5c3
commit 11c64178d8
142 changed files with 1635 additions and 1685 deletions
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2
components/gfx/Cargo.toml
View file

@ -15,7 +15,7 @@ unstable = ["simd"]
[dependencies]
app_units = "0.5"
bitflags = "1.0"
bitflags = "0.7"
euclid = "0.15"
fnv = "1.0"
fontsan = {git = "https://github.com/servo/fontsan"}

18
components/gfx/font.rs
View file

@ -139,17 +139,17 @@ impl Font {
}
bitflags! {
pub struct ShapingFlags: u8 {
pub flags ShapingFlags: u8 {
#[doc = "Set if the text is entirely whitespace."]
const IS_WHITESPACE_SHAPING_FLAG = 0x01;
const IS_WHITESPACE_SHAPING_FLAG = 0x01,
#[doc = "Set if we are to ignore ligatures."]
const IGNORE_LIGATURES_SHAPING_FLAG = 0x02;
const IGNORE_LIGATURES_SHAPING_FLAG = 0x02,
#[doc = "Set if we are to disable kerning."]
const DISABLE_KERNING_SHAPING_FLAG = 0x04;
const DISABLE_KERNING_SHAPING_FLAG = 0x04,
#[doc = "Text direction is right-to-left."]
const RTL_FLAG = 0x08;
const RTL_FLAG = 0x08,
#[doc = "Set if word-break is set to keep-all."]
const KEEP_ALL_FLAG = 0x10;
const KEEP_ALL_FLAG = 0x10,
}
}
@ -186,8 +186,8 @@ impl Font {
let result = self.shape_cache.borrow_mut().entry(lookup_key).or_insert_with(|| {
let start_time = time::precise_time_ns();
let mut glyphs = GlyphStore::new(text.len(),
options.flags.contains(ShapingFlags::IS_WHITESPACE_SHAPING_FLAG),
options.flags.contains(ShapingFlags::RTL_FLAG));
options.flags.contains(IS_WHITESPACE_SHAPING_FLAG),
options.flags.contains(RTL_FLAG));
if self.can_do_fast_shaping(text, options) {
debug!("shape_text: Using ASCII fast path.");
@ -211,7 +211,7 @@ impl Font {
fn can_do_fast_shaping(&self, text: &str, options: &ShapingOptions) -> bool {
options.script == Script::Latin &&
!options.flags.contains(ShapingFlags::RTL_FLAG) &&
!options.flags.contains(RTL_FLAG) &&
self.handle.can_do_fast_shaping() &&
text.is_ascii()
}

9
components/gfx/text/shaping/harfbuzz.rs
View file

@ -6,7 +6,8 @@
use app_units::Au;
use euclid::Point2D;
use font::{ShapingFlags, Font, FontTableMethods, FontTableTag, ShapingOptions, KERN};
use font::{DISABLE_KERNING_SHAPING_FLAG, Font, FontTableMethods, FontTableTag};
use font::{IGNORE_LIGATURES_SHAPING_FLAG, KERN, RTL_FLAG, ShapingOptions};
use harfbuzz::{HB_DIRECTION_LTR, HB_DIRECTION_RTL, HB_MEMORY_MODE_READONLY};
use harfbuzz::{hb_blob_create, hb_face_create_for_tables};
use harfbuzz::{hb_buffer_create, hb_font_destroy};
@ -188,7 +189,7 @@ impl ShaperMethods for Shaper {
fn shape_text(&self, text: &str, options: &ShapingOptions, glyphs: &mut GlyphStore) {
unsafe {
let hb_buffer: *mut hb_buffer_t = hb_buffer_create();
hb_buffer_set_direction(hb_buffer, if options.flags.contains(ShapingFlags::RTL_FLAG) {
hb_buffer_set_direction(hb_buffer, if options.flags.contains(RTL_FLAG) {
HB_DIRECTION_RTL
} else {
HB_DIRECTION_LTR
@ -203,7 +204,7 @@ impl ShaperMethods for Shaper {
text.len() as c_int);
let mut features = Vec::new();
if options.flags.contains(ShapingFlags::IGNORE_LIGATURES_SHAPING_FLAG) {
if options.flags.contains(IGNORE_LIGATURES_SHAPING_FLAG) {
features.push(hb_feature_t {
tag: LIGA,
value: 0,
@ -211,7 +212,7 @@ impl ShaperMethods for Shaper {
end: hb_buffer_get_length(hb_buffer),
})
}
if options.flags.contains(ShapingFlags::DISABLE_KERNING_SHAPING_FLAG) {
if options.flags.contains(DISABLE_KERNING_SHAPING_FLAG) {
features.push(hb_feature_t {
tag: KERN,
value: 0,

6
components/gfx/text/text_run.rs
View file

@ -3,7 +3,7 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use app_units::Au;
use font::{Font, FontHandleMethods, FontMetrics, ShapingFlags};
use font::{Font, FontHandleMethods, FontMetrics, IS_WHITESPACE_SHAPING_FLAG, KEEP_ALL_FLAG};
use font::{RunMetrics, ShapingOptions};
use platform::font_template::FontTemplateData;
use range::Range;
@ -210,7 +210,7 @@ impl<'a> TextRun {
.take_while(|&(_, c)| char_is_whitespace(c)).last() {
whitespace.start = slice.start + i;
slice.end = whitespace.start;
} else if idx != text.len() && options.flags.contains(ShapingFlags::KEEP_ALL_FLAG) {
} else if idx != text.len() && options.flags.contains(KEEP_ALL_FLAG) {
// If there's no whitespace and word-break is set to
// keep-all, try increasing the slice.
continue;
@ -224,7 +224,7 @@ impl<'a> TextRun {
}
if whitespace.len() > 0 {
let mut options = options.clone();
options.flags.insert(ShapingFlags::IS_WHITESPACE_SHAPING_FLAG);
options.flags.insert(IS_WHITESPACE_SHAPING_FLAG);
glyphs.push(GlyphRun {
glyph_store: font.shape_text(&text[whitespace.clone()], &options),
range: Range::new(ByteIndex(whitespace.start as isize),