bendns' repos / fimg
fast image operations
Diffstat (limited to 'benches/overlays.rs')
-rw-r--r--benches/overlays.rs63
1 files changed, 63 insertions, 0 deletions
diff --git a/benches/overlays.rs b/benches/overlays.rs
new file mode 100644
index 0000000..63af444
--- /dev/null
+++ b/benches/overlays.rs
@@ -0,0 +1,63 @@
+#![feature(test)]
+extern crate test;
+use fimg::*;
+use test::Bencher;
+
+#[bench]
+fn overlay_3on3at(bench: &mut Bencher) {
+ let mut v = vec![0u8; 3 * 64 * 64];
+ let mut a: Image<_, 3> = Image::new(
+ 64.try_into().unwrap(),
+ 64.try_into().unwrap(),
+ v.as_mut_slice(),
+ );
+ let b = Image::<&[u8], 3>::new(
+ 4.try_into().unwrap(),
+ 4.try_into().unwrap(),
+ *&include_bytes!("3_4x4.imgbuf"),
+ );
+ bench.iter(|| unsafe {
+ for x in 0..16 {
+ for y in 0..16 {
+ a.overlay_at(&b, x * 4, y * 4);
+ }
+ }
+ });
+ assert_eq!(a.as_ref().buffer, include_bytes!("3x3_at_out.imgbuf"));
+}
+
+#[bench]
+fn overlay_4on3at(bench: &mut Bencher) {
+ let mut a: Image<_, 3> = Image::alloc(64, 64);
+ let b = Image::<&[u8], 4>::new(
+ 4.try_into().unwrap(),
+ 4.try_into().unwrap(),
+ *&include_bytes!("4_4x4.imgbuf"),
+ );
+ bench.iter(|| unsafe {
+ for x in 0..16 {
+ for y in 0..16 {
+ a.as_mut().overlay_at(&b, x * 4, y * 4);
+ }
+ }
+ });
+ assert_eq!(a.as_ref().buffer, include_bytes!("4x3_at_out.imgbuf"));
+}
+
+#[bench]
+fn overlay_4on4at(bench: &mut Bencher) {
+ let mut a: Image<_, 4> = Image::alloc(64, 64);
+ let b = Image::<&[u8], 4>::new(
+ 4.try_into().unwrap(),
+ 4.try_into().unwrap(),
+ *&include_bytes!("4_4x4.imgbuf"),
+ );
+ bench.iter(|| unsafe {
+ for x in 0..16 {
+ for y in 0..16 {
+ a.as_mut().overlay_at(&b, x * 4, y * 4);
+ }
+ }
+ });
+ assert_eq!(a.as_ref().buffer, include_bytes!("4x4_at_out.imgbuf"));
+}