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vulkan: optimize blend-buffer usage

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This commit is contained in:
Julian Orth 2025-02-23 18:40:21 +01:00
parent cb9da22ec2
commit 292f181615
4 changed files with 362 additions and 236 deletions
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17
src/rect/region.rs
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@ -15,6 +15,7 @@ use {
},
smallvec::SmallVec,
std::{
borrow::Cow,
cell::UnsafeCell,
fmt::{Debug, Formatter},
mem,
@ -86,7 +87,19 @@ impl Region {
})
}
#[cfg_attr(not(test), expect(dead_code))]
pub fn subtract_cow<'a>(&'a self, other: &Self) -> Cow<'a, Self> {
if self.extents.is_empty() || other.extents.is_empty() {
return Cow::Borrowed(self);
}
let rects = subtract(&self.rects, &other.rects);
Cow::Owned(Self {
extents: Rect {
raw: extents(&rects),
},
rects,
})
}
pub fn intersect(&self, other: &Region) -> Self {
if self.is_empty() || other.is_empty() {
return Self::default();
@ -102,7 +115,6 @@ impl Region {
}
impl Region<u32> {
#[cfg_attr(not(test), expect(dead_code))]
pub fn from_rects_tagged(rects: &[Rect<u32>]) -> Self {
if rects.is_empty() {
return Self::default();
@ -123,7 +135,6 @@ impl Region<u32> {
}
}
#[cfg_attr(not(test), expect(dead_code))]
pub fn intersect_tagged(&self, other: &Region) -> Self {
if self.is_empty() || other.is_empty() {
return Self::default();