Added AVX2, some rework and improvements

.github/workflows/build_push.yml

@@ -0,0 +1,30 @@
+name: "Build"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  push:
+    branches:
+      - '*'
+      - '!ci_test_*'
+    tags-ignore:
+      - '*'
+  pull_request:
+    branches:
+      - '*'
+      - '!ci_test_*'
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+      - run: rustup target add aarch64-unknown-linux-gnu x86_64-unknown-linux-gnu
+      - run: cargo build --target aarch64-unknown-linux-gnu
+      - run: cargo build --features "nightly_avx512" --target x86_64-unknown-linux-gnu
+      - name: Test release pipeline
+        run: cargo publish --dry-run

Cargo.toml

@@ -2,11 +2,11 @@ workspace = { members = ["src/app"] }
 
 [package]
 name = "colorutils-rs"
-version = "0.1.4"
+version = "0.2.0"
 edition = "2021"
 description = "Rust utilities for color format handling and conversion."
 readme = "README.md"
-keywords = ["yuv"]
+keywords = ["lab", "hsv", "xyz", "luv", "hsl"]
 license = "Apache-2.0 OR BSD-3-Clause"
 authors = ["Radzivon Bartoshyk"]
 documentation = "https://github.com/awxkee/colorutils-rs"
@@ -17,3 +17,7 @@ exclude = ["*.jpg"]
 
 [dependencies]
 half = "2.4.1"
+
+[features]
+default = []
+avx2 = []

README.md

@@ -19,4 +19,8 @@ srgb_to_lab(src_bytes, width * components, & mut xyz, width * 3 * std::mem::size
 
 Prebuilt solutions ~3-5 times faster than naive implementation. If your case fits that you prebuilt function.
 Speed increasing done with AVX, NEON and SSE, if you are disabled or not using CPU with this features then you won't
-receive any benefits. 
+receive any benefits. 
+
+Also, `fma` target feature for x86-64 is available.
+
+Target feature at compile time `+avx2` must be activated to properly compile avx2 instructions. This is an important step even when runtime dispatch are used.

src/app/Cargo.toml

@@ -4,5 +4,5 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-colorutils-rs = {path = "../../"}
+colorutils-rs = {path = "../../", features = ["avx2"]}
 image = "0.25.1"

src/app/src/main.rs

@@ -46,7 +46,7 @@ fn main() {
     println!("dimensions {:?}", img.dimensions());
 
     println!("{:?}", img.color());
-    let mut src_bytes = img.as_bytes();
+    let src_bytes = img.as_bytes();
     let width = dimensions.0;
     let height = dimensions.1;
     let components = 3;
@@ -70,7 +70,7 @@ fn main() {
     let mut a_plane: Vec<f32> = vec![];
     a_plane.resize(width as usize * height as usize, 0f32);
 
-    for i in 0..10 {
+    for i in 0..1 {
         let start_time = Instant::now();
         // srgba_to_xyza(
         //     src_bytes,