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Auto merge of #11273 - mbrubeck:fast-shape, r=pcwalton

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Add a fast path for shaping ASCII text

On both my Linux laptop and iMac, this is about twice as fast as Harfbuzz text shaping on https://en.wikipedia.org/wiki/Barack_Obama.

I haven't tested this on any high-DPI (retina) displays, and I'm not 100% certain that the font unit scaling is correct there.

Depends on servo/core-text-rs#50.

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This commit is contained in:
bors-servo 2016-05-20 17:58:23 -07:00
commit c0c70ef094
9 changed files with 258 additions and 80 deletions
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components/servo/Cargo.lock generated
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@ -101,7 +101,7 @@ source = "git+https://github.com/servo/rust-azure#a7177c8df81554352bc51de2f5b77c
dependencies = [
"core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"core-graphics 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"core-text 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"core-text 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"euclid 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
"freetype 0.1.0 (git+https://github.com/servo/rust-freetype)",
"heapsize 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@ -404,7 +404,7 @@ dependencies = [
[[package]]
name = "core-text"
version = "1.1.0"
version = "1.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@ -744,9 +744,10 @@ dependencies = [
"app_units 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
"azure 0.4.5 (git+https://github.com/servo/rust-azure)",
"bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
"byteorder 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
"core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"core-graphics 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"core-text 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"core-text 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"euclid 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
"fnv 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
"freetype 0.1.0 (git+https://github.com/servo/rust-freetype)",
@ -2501,7 +2502,7 @@ dependencies = [
"app_units 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
"byteorder 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
"core-graphics 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"core-text 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"core-text 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"euclid 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
"fnv 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
"freetype 0.1.0 (git+https://github.com/servo/rust-freetype)",