Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

4 files changed, 410 insertions, 0 deletions

diff --git a/vendor/exr/benches/pixel_format_conversion.rs b/vendor/exr/benches/pixel_format_conversion.rs
new file mode 100644
index 0000000..3d1ba93
--- /dev/null
+++ b/vendor/exr/benches/pixel_format_conversion.rs
@@ -0,0 +1,119 @@
+#[macro_use]
+extern crate bencher;
+
+extern crate exr;
+use exr::prelude::*;
+
+use bencher::Bencher;
+use std::fs;
+use std::io::Cursor;
+use exr::image::pixel_vec::PixelVec;
+use exr::io::Data;
+use exr::block::samples::FromNativeSample;
+
+const F32_ZIPS_PATH: &'static str = "tests/images/valid/custom/crowskull/crow_zips.exr";
+const F32_UNCOMPRESSED_PATH: &'static str = "tests/images/valid/custom/crowskull/crow_uncompressed.exr";
+const F16_UNCOMPRESSED_PATH: &'static str = "tests/images/valid/custom/crowskull/crow_uncompressed_half.exr";
+const F16_ZIP_PATH: &'static str = "tests/images/valid/custom/crowskull/crow_zip_half.exr";
+
+/// Read an image from an in-memory buffer into its native f32 format
+fn read_f32_as_f32_uncompressed_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f32>(bench, F32_UNCOMPRESSED_PATH, false);
+}
+
+/// Read image and convert the samples to u32 (from native f32)
+fn read_f32_as_u32_uncompressed_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<u32>(bench, F32_UNCOMPRESSED_PATH, false);
+}
+
+/// f16 is not natively supported by CPUs, which introduces unique performance pitfalls
+fn read_f32_as_f16_uncompressed_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f16>(bench, F32_UNCOMPRESSED_PATH, false);
+}
+
+fn read_f16_as_f16_uncompressed_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f16>(bench, F16_UNCOMPRESSED_PATH, false);
+}
+
+fn read_f16_as_f32_uncompressed_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f32>(bench, F16_UNCOMPRESSED_PATH, false);
+}
+
+fn read_f16_as_u32_uncompressed_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<u32>(bench, F16_UNCOMPRESSED_PATH, false);
+}
+
+
+fn read_f32_as_f16_zips_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f16>(bench, F32_ZIPS_PATH, false);
+}
+
+fn read_f16_as_f32_zip_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f32>(bench, F16_ZIP_PATH, false);
+}
+
+fn read_f32_as_f16_zips_nthreads(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f16>(bench, F32_ZIPS_PATH, true);
+}
+
+fn read_f16_as_f32_zip_nthreads(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f32>(bench, F16_ZIP_PATH, true);
+}
+
+fn read_f32_as_f32_zips_nthreads(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f32>(bench, F32_ZIPS_PATH, true);
+}
+
+fn read_f16_as_f16_zip_nthreads(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f16>(bench, F16_ZIP_PATH, true);
+}
+
+fn read_f32_as_f32_zips_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f32>(bench, F32_ZIPS_PATH, false);
+}
+
+fn read_f16_as_f16_zip_1thread(bench: &mut Bencher) {
+    bench_read_image_rgba_as::<f16>(bench, F16_ZIP_PATH, false);
+}
+
+fn bench_read_image_rgba_as<T>(bench: &mut Bencher, path: &str, parallel: bool) {
+    let mut file = fs::read(path).unwrap();
+    bencher::black_box(&mut file);
+
+    bench.iter(||{
+        let image = read_file_from_memory_as::<f16>(file.as_slice(), parallel);
+        bencher::black_box(image);
+    })
+}
+
+fn read_file_from_memory_as<T>(file: &[u8], parallel: bool) -> RgbaImage<PixelVec<(T, T, T, T)>>
+    where T: FromNativeSample
+{
+    let read = exr::prelude::read()
+        .no_deep_data().largest_resolution_level()
+        .rgba_channels(PixelVec::<(T, T, T, T)>::constructor, PixelVec::set_pixel)
+        .first_valid_layer().all_attributes();
+
+    let read = if parallel { read } else { read.non_parallel() };
+    read.from_buffered(Cursor::new(file)).unwrap()
+}
+
+benchmark_group!(pixel_format_conversion,
+    read_f32_as_f32_uncompressed_1thread,
+    read_f32_as_u32_uncompressed_1thread,
+    read_f32_as_f16_uncompressed_1thread,
+    read_f32_as_f16_zips_1thread,
+    read_f32_as_f16_zips_nthreads,
+    read_f32_as_f32_zips_nthreads,
+    read_f32_as_f32_zips_1thread,
+
+    read_f16_as_f16_uncompressed_1thread,
+    read_f16_as_u32_uncompressed_1thread,
+    read_f16_as_f32_uncompressed_1thread,
+    read_f16_as_f32_zip_1thread,
+    read_f16_as_f32_zip_nthreads,
+    read_f16_as_f16_zip_nthreads,
+    read_f16_as_f16_zip_1thread,
+);
+
+benchmark_main!(pixel_format_conversion);
\ No newline at end of file
diff --git a/vendor/exr/benches/profiling.rs b/vendor/exr/benches/profiling.rs
new file mode 100644
index 0000000..1ae8c0d
--- /dev/null
+++ b/vendor/exr/benches/profiling.rs
@@ -0,0 +1,39 @@
+#[macro_use]
+extern crate bencher;
+
+extern crate exr;
+use exr::prelude::*;
+
+use bencher::Bencher;
+use std::fs;
+use std::io::Cursor;
+use exr::image::pixel_vec::PixelVec;
+
+const PROFILING_REPETITIONS: i32 = 1; // make this 100 for profiling longer periods
+
+/// This is a suuuper long benchmark, to allow you to hook up a profiler while running it
+/// but this means we don't want it in our normal benchmarks
+fn read_single_image_from_buffer_rgba_f32_as_f16(bench: &mut Bencher) {
+
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_uncompressed.exr").unwrap();
+    bencher::black_box(&mut file);
+
+    bench.iter(||{
+        for _ in 0 .. PROFILING_REPETITIONS {
+            let image = exr::prelude::read()
+                .no_deep_data().largest_resolution_level()
+                .rgba_channels(PixelVec::<(f16,f16,f16,f16)>::constructor, PixelVec::set_pixel)
+                .first_valid_layer().all_attributes()
+                .non_parallel()
+                .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+            bencher::black_box(image);
+        }
+    })
+}
+
+benchmark_group!(profiling,
+    read_single_image_from_buffer_rgba_f32_as_f16
+);
+
+benchmark_main!(profiling);
\ No newline at end of file
diff --git a/vendor/exr/benches/read.rs b/vendor/exr/benches/read.rs
new file mode 100644
index 0000000..634f16e
--- /dev/null
+++ b/vendor/exr/benches/read.rs
@@ -0,0 +1,172 @@
+#[macro_use]
+extern crate bencher;
+
+extern crate exr;
+use exr::prelude::*;
+
+use bencher::Bencher;
+use std::fs;
+use std::io::Cursor;
+use exr::image::pixel_vec::PixelVec;
+
+/// Read uncompressed (always single core)
+fn read_single_image_uncompressed_non_parallel_rgba(bench: &mut Bencher) {
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_uncompressed.exr").unwrap();
+    bench.iter(||{
+        bencher::black_box(&mut file);
+
+        let image = exr::prelude::read()
+            .no_deep_data().largest_resolution_level()
+            .rgba_channels(PixelVec::<(f32,f32,f32,f32)>::constructor, PixelVec::set_pixel)
+            .all_layers().all_attributes()
+            .non_parallel()
+            .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+        bencher::black_box(image);
+    })
+}
+
+/// Read from in-memory in parallel
+fn read_single_image_uncompressed_rgba(bench: &mut Bencher) {
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_uncompressed.exr").unwrap();
+
+    bench.iter(||{
+        bencher::black_box(&mut file);
+
+        let image = exr::prelude::read()
+            .no_deep_data().largest_resolution_level()
+            .rgba_channels(PixelVec::<(f32,f32,f32,f32)>::constructor, PixelVec::set_pixel)
+            .all_layers().all_attributes()
+            .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+        bencher::black_box(image);
+    })
+}
+
+/// Read with multi-core RLE decompression
+fn read_single_image_rle_all_channels(bench: &mut Bencher) {
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_rle.exr").unwrap();
+
+    bench.iter(||{
+        bencher::black_box(&mut file);
+
+        let image = exr::prelude::read()
+            .no_deep_data()
+            .largest_resolution_level()
+            .all_channels()
+            .all_layers()
+            .all_attributes()
+            .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+        bencher::black_box(image);
+    })
+}
+
+/// Read without multi-core RLE decompression
+fn read_single_image_rle_non_parallel_all_channels(bench: &mut Bencher) {
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_rle.exr").unwrap();
+
+    bench.iter(||{
+        bencher::black_box(&mut file);
+
+        // copied from `read_all_flat_layers_from_file` and added `.non_parallel()`
+        let image = exr::prelude::read()
+            .no_deep_data()
+            .largest_resolution_level()
+            .all_channels()
+            .all_layers()
+            .all_attributes()
+            .non_parallel()
+            .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+        bencher::black_box(image);
+    })
+}
+
+/// Read with multi-core RLE decompression
+fn read_single_image_rle_rgba(bench: &mut Bencher) {
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_rle.exr").unwrap();
+
+    bench.iter(||{
+        bencher::black_box(&mut file);
+
+        let image = exr::prelude::read()
+            .no_deep_data()
+            .largest_resolution_level()
+            .rgba_channels(PixelVec::<(f32,f32,f32,f32)>::constructor, PixelVec::set_pixel)
+            .all_layers()
+            .all_attributes()
+            .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+        bencher::black_box(image);
+    })
+}
+
+/// Read without multi-core RLE decompression
+fn read_single_image_rle_non_parallel_rgba(bench: &mut Bencher) {
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_rle.exr").unwrap();
+
+    bench.iter(||{
+        bencher::black_box(&mut file);
+
+        // copied from `read_all_flat_layers_from_file` and added `.non_parallel()`
+        let image = exr::prelude::read()
+            .no_deep_data()
+            .largest_resolution_level()
+            .rgba_channels(PixelVec::<(f32,f32,f32,f32)>::constructor, PixelVec::set_pixel)
+            .all_layers()
+            .all_attributes()
+            .non_parallel()
+            .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+        bencher::black_box(image);
+    })
+}
+
+/// Read with multi-core zip decompression
+fn read_single_image_zips_rgba(bench: &mut Bencher) {
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_zips.exr").unwrap();
+
+    bench.iter(||{
+        bencher::black_box(&mut file);
+
+        let image = exr::prelude::read()
+            .no_deep_data().largest_resolution_level()
+            .rgba_channels(PixelVec::<(f32,f32,f32,f32)>::constructor, PixelVec::set_pixel)
+            .all_layers().all_attributes()
+            .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+        bencher::black_box(image);
+    })
+}
+
+/// Read without multi-core ZIP decompression
+fn read_single_image_zips_non_parallel_rgba(bench: &mut Bencher) {
+    let mut file = fs::read("tests/images/valid/custom/crowskull/crow_zips.exr").unwrap();
+
+    bench.iter(||{
+        bencher::black_box(&mut file);
+
+        let image = exr::prelude::read()
+            .no_deep_data().largest_resolution_level()
+            .rgba_channels(PixelVec::<(f32,f32,f32,f32)>::constructor, PixelVec::set_pixel)
+            .all_layers().all_attributes()
+            .non_parallel()
+            .from_buffered(Cursor::new(file.as_slice())).unwrap();
+
+        bencher::black_box(image);
+    })
+}
+
+benchmark_group!(read,
+    read_single_image_uncompressed_rgba,
+    read_single_image_uncompressed_non_parallel_rgba,
+    read_single_image_rle_rgba,
+    read_single_image_rle_non_parallel_rgba,
+    read_single_image_rle_all_channels,
+    read_single_image_rle_non_parallel_all_channels,
+    read_single_image_zips_rgba,
+    read_single_image_zips_non_parallel_rgba,
+);
+
+benchmark_main!(read);
\ No newline at end of file
diff --git a/vendor/exr/benches/write.rs b/vendor/exr/benches/write.rs
new file mode 100644
index 0000000..14331c5
--- /dev/null
+++ b/vendor/exr/benches/write.rs
@@ -0,0 +1,80 @@
+#[macro_use]
+extern crate bencher;
+
+extern crate exr;
+use exr::prelude::*;
+
+use bencher::Bencher;
+use std::io::Cursor;
+
+fn write_parallel_any_channels_to_buffered(bench: &mut Bencher) {
+    let path = "tests/images/valid/custom/crowskull/crow_rle.exr";
+    let image = read_all_flat_layers_from_file(path).unwrap();
+
+    bench.iter(||{
+        let mut result = Vec::new();
+        image.write().to_buffered(Cursor::new(&mut result)).unwrap();
+        bencher::black_box(result);
+    })
+}
+
+fn write_parallel_zip1_to_buffered(bench: &mut Bencher) {
+    let path = "tests/images/valid/custom/crowskull/crow_rle.exr";
+
+    let mut image = read_first_flat_layer_from_file(path).unwrap();
+    image.layer_data.encoding.compression = Compression::ZIP1;
+
+    bench.iter(||{
+        let mut result = Vec::new();
+        image.write().to_buffered(Cursor::new(&mut result)).unwrap();
+        bencher::black_box(result);
+    })
+}
+
+fn write_nonparallel_zip1_to_buffered(bench: &mut Bencher) {
+    let path = "tests/images/valid/custom/crowskull/crow_rle.exr";
+
+    let mut image = read_first_flat_layer_from_file(path).unwrap();
+    image.layer_data.encoding.compression = Compression::ZIP1;
+
+    bench.iter(||{
+        let mut result = Vec::new();
+        image.write().non_parallel().to_buffered(Cursor::new(&mut result)).unwrap();
+        bencher::black_box(result);
+    })
+}
+
+fn write_parallel_zip16_to_buffered(bench: &mut Bencher) {
+    let path = "tests/images/valid/custom/crowskull/crow_rle.exr";
+
+    let mut image = read_first_flat_layer_from_file(path).unwrap();
+    image.layer_data.encoding.compression = Compression::ZIP16;
+
+    bench.iter(||{
+        let mut result = Vec::new();
+        image.write().to_buffered(Cursor::new(&mut result)).unwrap();
+        bencher::black_box(result);
+    })
+}
+
+fn write_uncompressed_to_buffered(bench: &mut Bencher) {
+    let path = "tests/images/valid/custom/crowskull/crow_uncompressed.exr";
+    let image = read_all_flat_layers_from_file(path).unwrap();
+    assert!(image.layer_data.iter().all(|layer| layer.encoding.compression == Compression::Uncompressed));
+
+    bench.iter(||{
+        let mut result = Vec::new();
+        image.write().to_buffered(Cursor::new(&mut result)).unwrap();
+        bencher::black_box(result);
+    })
+}
+
+benchmark_group!(write,
+    write_parallel_any_channels_to_buffered,
+    write_nonparallel_zip1_to_buffered,
+    write_parallel_zip1_to_buffered,
+    write_parallel_zip16_to_buffered,
+    write_uncompressed_to_buffered
+);
+
+benchmark_main!(write);
\ No newline at end of file