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Memory map fonts

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This commit is contained in:
Jeremy Soller 2022-10-09 17:04:59 -06:00
parent 0365737908
commit 66ab1e6000
2 changed files with 9 additions and 3 deletions
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1
examples/text/Cargo.toml
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@ -8,6 +8,7 @@ publish = false
[dependencies] [dependencies]
ab_glyph = { version = "0.2", optional = true } ab_glyph = { version = "0.2", optional = true }
orbclient = "0.3" orbclient = "0.3"
memmap2 = "0.5"
rusttype = { version = "0.9", optional = true } rusttype = { version = "0.9", optional = true }
rustybuzz = "0.5" rustybuzz = "0.5"
swash = { version = "0.1", optional = true } swash = { version = "0.1", optional = true }

11
examples/text/src/main.rs
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@ -42,10 +42,15 @@ fn main() {
("/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc", 2 /* simplified chinese */), ("/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc", 2 /* simplified chinese */),
("/usr/share/fonts/truetype/noto/NotoColorEmoji.ttf", 0), ("/usr/share/fonts/truetype/noto/NotoColorEmoji.ttf", 0),
] { ] {
match fs::read(font_path) { match fs::File::open(&font_path) {
Ok(font_data) => font_datas.push((font_path, font_data, *font_index)), Ok(font_file) => match unsafe { memmap2::Mmap::map(&font_file) } {
Ok(font_data) => font_datas.push((font_path, font_data, *font_index)),
Err(err) => {
eprintln!("failed to memory map font '{}': {}", font_path, err)
}
},
Err(err) => { Err(err) => {
eprintln!("failed to read font '{}': {}", font_path, err) eprintln!("failed to open font '{}': {}", font_path, err)
} }
} }
} }