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Removed FnvHash and transformed the rest to FxHashmap (#39233)

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This should be the final PR for the Hash Function series that is
trivial.

Of note: I decided to transform `HashMapTracedValues<Atom,..>` to use
FxBuildHasher. This is likely not going to improve performance as Atom's
already have a unique u32 that is used as the Hash but it safes a few
bytes for the RandomState that is normally in the HashMap.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

Testing: Hash function changes should not change functionality, we
slightly decrease the size and unit tests still work.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
This commit is contained in:
Narfinger 2025-09-10 15:34:54 +02:00 • committed by GitHub
parent 726b456120
commit 84465e7768
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GPG key ID: B5690EEEBB952194
55 changed files with 211 additions and 202 deletions
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24
components/script/dom/webgl/extensions/extensions.rs
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@ -7,9 +7,9 @@ use std::iter::FromIterator;
use std::ptr::NonNull;
use canvas_traits::webgl::{GlType, TexFormat, WebGLSLVersion, WebGLVersion};
use fnv::{FnvHashMap, FnvHashSet};
use js::jsapi::JSObject;
use malloc_size_of::MallocSizeOf;
use rustc_hash::{FxHashMap, FxHashSet};
type GLenum = u32;
use super::wrapper::{TypedWebGLExtensionWrapper, WebGLExtensionWrapper};
@ -81,25 +81,25 @@ const DEFAULT_DISABLED_GET_VERTEX_ATTRIB_NAMES_WEBGL1: [GLenum; 1] =
/// WebGL features that are enabled/disabled by WebGL Extensions.
#[derive(JSTraceable, MallocSizeOf)]
struct WebGLExtensionFeatures {
gl_extensions: FnvHashSet<String>,
disabled_tex_types: FnvHashSet<GLenum>,
not_filterable_tex_types: FnvHashSet<GLenum>,
gl_extensions: FxHashSet<String>,
disabled_tex_types: FxHashSet<GLenum>,
not_filterable_tex_types: FxHashSet<GLenum>,
#[no_trace]
effective_tex_internal_formats: FnvHashMap<TexFormatType, TexFormat>,
effective_tex_internal_formats: FxHashMap<TexFormatType, TexFormat>,
/// WebGL Hint() targets enabled by extensions.
hint_targets: FnvHashSet<GLenum>,
hint_targets: FxHashSet<GLenum>,
/// WebGL GetParameter() names enabled by extensions.
disabled_get_parameter_names: FnvHashSet<GLenum>,
disabled_get_parameter_names: FxHashSet<GLenum>,
/// WebGL GetTexParameter() names enabled by extensions.
disabled_get_tex_parameter_names: FnvHashSet<GLenum>,
disabled_get_tex_parameter_names: FxHashSet<GLenum>,
/// WebGL GetAttribVertex() names enabled by extensions.
disabled_get_vertex_attrib_names: FnvHashSet<GLenum>,
disabled_get_vertex_attrib_names: FxHashSet<GLenum>,
/// WebGL OES_element_index_uint extension.
element_index_uint_enabled: bool,
/// WebGL EXT_blend_minmax extension.
blend_minmax_enabled: bool,
/// WebGL supported texture compression formats enabled by extensions.
tex_compression_formats: FnvHashMap<GLenum, TexCompression>,
tex_compression_formats: FxHashMap<GLenum, TexCompression>,
}
impl WebGLExtensionFeatures {
@ -199,7 +199,7 @@ impl WebGLExtensions {
if self.extensions.borrow().is_empty() {
let gl_str = cb();
self.features.borrow_mut().gl_extensions =
FnvHashSet::from_iter(gl_str.split(&[',', ' '][..]).map(|s| s.into()));
FxHashSet::from_iter(gl_str.split(&[',', ' '][..]).map(|s| s.into()));
self.register_all_extensions();
}
}
@ -382,7 +382,7 @@ impl WebGLExtensions {
}
pub(crate) fn add_tex_compression_formats(&self, formats: &[TexCompression]) {
let formats: FnvHashMap<GLenum, TexCompression> = formats
let formats: FxHashMap<GLenum, TexCompression> = formats
.iter()
.map(|&compression| (compression.format.as_gl_constant(), compression))
.collect();