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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/rust/wpf-gpu-raster/src/fix.rs
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/wpf-gpu-raster/src/fix.rs')
-rw-r--r--third_party/rust/wpf-gpu-raster/src/fix.rs9
1 files changed, 9 insertions, 0 deletions
diff --git a/third_party/rust/wpf-gpu-raster/src/fix.rs b/third_party/rust/wpf-gpu-raster/src/fix.rs
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+++ b/third_party/rust/wpf-gpu-raster/src/fix.rs
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+use crate::types::*;
+type FIX4 = INT; // 28.4 fixed point value
+
+// constants for working with 28.4 fixed point values
+macro_rules! FIX4_SHIFT { () => { 4 } }
+macro_rules! FIX4_PRECISION { () => { 4 } }
+macro_rules! FIX4_ONE { () => { (1 << FIX4_PRECISION!()) } }
+macro_rules! FIX4_HALF { () => { (1 << (FIX4_PRECISION!()-1)) } }
+macro_rules! FIX4_MASK { () => { (FIX4_ONE!() - 1) } } \ No newline at end of file