Deleted vendor folder

1 files changed, 0 insertions, 463 deletions

diff --git a/vendor/exr/src/image/read/specific_channels.rs b/vendor/exr/src/image/read/specific_channels.rs
deleted file mode 100644
index 375691c..0000000
--- a/vendor/exr/src/image/read/specific_channels.rs
+++ /dev/null
@@ -1,463 +0,0 @@
-//! How to read arbitrary but specific selection of arbitrary channels.
-//! This is not a zero-cost abstraction.
-
-use crate::image::recursive::*;
-use crate::block::samples::*;
-use crate::image::*;
-use crate::math::*;
-use crate::meta::header::*;
-use crate::error::*;
-use crate::block::UncompressedBlock;
-use crate::image::read::layers::{ChannelsReader, ReadChannels};
-use crate::block::chunk::TileCoordinates;
-
-use std::marker::PhantomData;
-use crate::io::Read;
-
-
-/// Can be attached one more channel reader.
-/// Call `required` or `optional` on this object to declare another channel to be read from the file.
-/// Call `collect_pixels` at last to define how the previously declared pixels should be stored.
-pub trait ReadSpecificChannel: Sized + CheckDuplicates {
-
-    /// A separate internal reader for the pixels. Will be of type `Recursive<_, SampleReader<_>>`,
-    /// depending on the pixels of the specific channel combination.
-    type RecursivePixelReader: RecursivePixelReader;
-
-    /// Create a separate internal reader for the pixels of the specific channel combination.
-    fn create_recursive_reader(&self, channels: &ChannelList) -> Result<Self::RecursivePixelReader>;
-
-    /// Plan to read an additional channel from the image, with the specified name.
-    /// If the channel cannot be found in the image when the image is read, the image will not be loaded.
-    /// The generic parameter can usually be inferred from the closure in `collect_pixels`.
-    fn required<Sample>(self, channel_name: impl Into<Text>) -> ReadRequiredChannel<Self, Sample> {
-        let channel_name = channel_name.into();
-        assert!(self.already_contains(&channel_name).not(), "a channel with the name `{}` is already defined", channel_name);
-        ReadRequiredChannel { channel_name, previous_channels: self, px: Default::default() }
-    }
-
-    /// Plan to read an additional channel from the image, with the specified name.
-    /// If the file does not contain this channel, the specified default sample will be returned instead.
-    /// You can check whether the channel has been loaded by
-    /// checking the presence of the optional channel description before instantiating your own image.
-    /// The generic parameter can usually be inferred from the closure in `collect_pixels`.
-    fn optional<Sample>(self, channel_name: impl Into<Text>, default_sample: Sample)
-        -> ReadOptionalChannel<Self, Sample>
-    {
-        let channel_name = channel_name.into();
-        assert!(self.already_contains(&channel_name).not(), "a channel with the name `{}` is already defined", channel_name);
-        ReadOptionalChannel { channel_name, previous_channels: self, default_sample }
-    }
-
-    /// Using two closures, define how to store the pixels.
-    /// The first closure creates an image, and the second closure inserts a single pixel.
-    /// The type of the pixel can be defined by the second closure;
-    /// it must be a tuple containing `f16`, `f32`, `u32` or `Sample` values.
-    /// See the examples for more information.
-    fn collect_pixels<Pixel, PixelStorage, CreatePixels, SetPixel>(
-        self, create_pixels: CreatePixels, set_pixel: SetPixel
-    ) -> CollectPixels<Self, Pixel, PixelStorage, CreatePixels, SetPixel>
-        where
-            <Self::RecursivePixelReader as RecursivePixelReader>::RecursivePixel: IntoTuple<Pixel>,
-            <Self::RecursivePixelReader as RecursivePixelReader>::RecursiveChannelDescriptions: IntoNonRecursive,
-            CreatePixels: Fn(
-                Vec2<usize>,
-                &<<Self::RecursivePixelReader as RecursivePixelReader>::RecursiveChannelDescriptions as IntoNonRecursive>::NonRecursive
-            ) -> PixelStorage,
-            SetPixel: Fn(&mut PixelStorage, Vec2<usize>, Pixel),
-    {
-        CollectPixels { read_channels: self, set_pixel, create_pixels, px: Default::default() }
-    }
-}
-
-/// A reader containing sub-readers for reading the pixel content of an image.
-pub trait RecursivePixelReader {
-
-    /// The channel descriptions from the image.
-    /// Will be converted to a tuple before being stored in `SpecificChannels<_, ChannelDescriptions>`.
-    type RecursiveChannelDescriptions;
-
-    /// Returns the channel descriptions based on the channels in the file.
-    fn get_descriptions(&self) -> Self::RecursiveChannelDescriptions;
-
-    /// The pixel type. Will be converted to a tuple at the end of the process.
-    type RecursivePixel: Copy + Default + 'static;
-
-    /// Read the line of pixels.
-    fn read_pixels<'s, FullPixel>(
-        &self, bytes: &'s[u8], pixels: &mut [FullPixel],
-        get_pixel: impl Fn(&mut FullPixel) -> &mut Self::RecursivePixel
-    );
-}
-
-// does not use the generic `Recursive` struct to reduce the number of angle brackets in the public api
-/// Used to read another specific channel from an image.
-/// Contains the previous `ReadChannels` objects.
-#[derive(Clone, Debug)]
-pub struct ReadOptionalChannel<ReadChannels, Sample> {
-    previous_channels: ReadChannels,
-    channel_name: Text,
-    default_sample: Sample,
-}
-
-// does not use the generic `Recursive` struct to reduce the number of angle brackets in the public api
-/// Used to read another specific channel from an image.
-/// Contains the previous `ReadChannels` objects.
-#[derive(Clone, Debug)]
-pub struct ReadRequiredChannel<ReadChannels, Sample> {
-    previous_channels: ReadChannels,
-    channel_name: Text,
-    px: PhantomData<Sample>,
-}
-
-/// Specifies how to collect all the specified channels into a number of individual pixels.
-#[derive(Copy, Clone, Debug)]
-pub struct CollectPixels<ReadChannels, Pixel, PixelStorage, CreatePixels, SetPixel> {
-    read_channels: ReadChannels,
-    create_pixels: CreatePixels,
-    set_pixel: SetPixel,
-    px: PhantomData<(Pixel, PixelStorage)>,
-}
-
-impl<Inner: CheckDuplicates, Sample> CheckDuplicates for ReadRequiredChannel<Inner, Sample> {
-    fn already_contains(&self, name: &Text) -> bool {
-        &self.channel_name == name || self.previous_channels.already_contains(name)
-    }
-}
-
-impl<Inner: CheckDuplicates, Sample> CheckDuplicates for ReadOptionalChannel<Inner, Sample> {
-    fn already_contains(&self, name: &Text) -> bool {
-        &self.channel_name == name || self.previous_channels.already_contains(name)
-    }
-}
-
-impl<'s, InnerChannels, Pixel, PixelStorage, CreatePixels, SetPixel: 's>
-ReadChannels<'s> for CollectPixels<InnerChannels, Pixel, PixelStorage, CreatePixels, SetPixel>
-    where
-        InnerChannels: ReadSpecificChannel,
-        <InnerChannels::RecursivePixelReader as RecursivePixelReader>::RecursivePixel: IntoTuple<Pixel>,
-        <InnerChannels::RecursivePixelReader as RecursivePixelReader>::RecursiveChannelDescriptions: IntoNonRecursive,
-        CreatePixels: Fn(Vec2<usize>, &<<InnerChannels::RecursivePixelReader as RecursivePixelReader>::RecursiveChannelDescriptions as IntoNonRecursive>::NonRecursive) -> PixelStorage,
-        SetPixel: Fn(&mut PixelStorage, Vec2<usize>, Pixel),
-{
-    type Reader = SpecificChannelsReader<
-        PixelStorage, &'s SetPixel,
-        InnerChannels::RecursivePixelReader,
-        Pixel,
-    >;
-
-    fn create_channels_reader(&'s self, header: &Header) -> Result<Self::Reader> {
-        if header.deep { return Err(Error::invalid("`SpecificChannels` does not support deep data yet")) }
-
-        let pixel_reader = self.read_channels.create_recursive_reader(&header.channels)?;
-        let channel_descriptions = pixel_reader.get_descriptions().into_non_recursive();// TODO not call this twice
-
-        let create = &self.create_pixels;
-        let pixel_storage = create(header.layer_size, &channel_descriptions);
-
-        Ok(SpecificChannelsReader {
-            set_pixel: &self.set_pixel,
-            pixel_storage,
-            pixel_reader,
-            px: Default::default()
-        })
-    }
-}
-
-/// The reader that holds the temporary data that is required to read some specified channels.
-#[derive(Copy, Clone, Debug)]
-pub struct SpecificChannelsReader<PixelStorage, SetPixel, PixelReader, Pixel> {
-    set_pixel: SetPixel,
-    pixel_storage: PixelStorage,
-    pixel_reader: PixelReader,
-    px: PhantomData<Pixel>
-}
-
-impl<PixelStorage, SetPixel, PxReader, Pixel>
-ChannelsReader for SpecificChannelsReader<PixelStorage, SetPixel, PxReader, Pixel>
-    where PxReader: RecursivePixelReader,
-          PxReader::RecursivePixel: IntoTuple<Pixel>,
-          PxReader::RecursiveChannelDescriptions: IntoNonRecursive,
-          SetPixel: Fn(&mut PixelStorage, Vec2<usize>, Pixel),
-{
-    type Channels = SpecificChannels<PixelStorage, <PxReader::RecursiveChannelDescriptions as IntoNonRecursive>::NonRecursive>;
-
-    fn filter_block(&self, tile: TileCoordinates) -> bool { tile.is_largest_resolution_level() } // TODO all levels
-
-    fn read_block(&mut self, header: &Header, block: UncompressedBlock) -> UnitResult {
-        let mut pixels = vec![PxReader::RecursivePixel::default(); block.index.pixel_size.width()]; // TODO allocate once in self
-
-        let byte_lines = block.data.chunks_exact(header.channels.bytes_per_pixel * block.index.pixel_size.width());
-        debug_assert_eq!(byte_lines.len(), block.index.pixel_size.height(), "invalid block lines split");
-
-        for (y_offset, line_bytes) in byte_lines.enumerate() { // TODO sampling
-            // this two-step copy method should be very cache friendly in theory, and also reduce sample_type lookup count
-            self.pixel_reader.read_pixels(line_bytes, &mut pixels, |px| px);
-
-            for (x_offset, pixel) in pixels.iter().enumerate() {
-                let set_pixel = &self.set_pixel;
-                set_pixel(&mut self.pixel_storage, block.index.pixel_position + Vec2(x_offset, y_offset), pixel.into_tuple());
-            }
-        }
-
-        Ok(())
-    }
-
-    fn into_channels(self) -> Self::Channels {
-        SpecificChannels { channels: self.pixel_reader.get_descriptions().into_non_recursive(), pixels: self.pixel_storage }
-    }
-}
-
-
-/// Read zero channels from an image. Call `with_named_channel` on this object
-/// to read as many channels as desired.
-pub type ReadZeroChannels = NoneMore;
-
-impl ReadSpecificChannel for NoneMore {
-    type RecursivePixelReader = NoneMore;
-    fn create_recursive_reader(&self, _: &ChannelList) -> Result<Self::RecursivePixelReader> { Ok(NoneMore) }
-}
-
-impl<DefaultSample, ReadChannels> ReadSpecificChannel for ReadOptionalChannel<ReadChannels, DefaultSample>
-    where ReadChannels: ReadSpecificChannel, DefaultSample: FromNativeSample + 'static,
-{
-    type RecursivePixelReader = Recursive<ReadChannels::RecursivePixelReader, OptionalSampleReader<DefaultSample>>;
-
-    fn create_recursive_reader(&self, channels: &ChannelList) -> Result<Self::RecursivePixelReader> {
-        debug_assert!(self.previous_channels.already_contains(&self.channel_name).not(), "duplicate channel name: {}", self.channel_name);
-
-        let inner_samples_reader = self.previous_channels.create_recursive_reader(channels)?;
-        let reader = channels.channels_with_byte_offset()
-            .find(|(_, channel)| channel.name == self.channel_name)
-            .map(|(channel_byte_offset, channel)| SampleReader {
-                channel_byte_offset, channel: channel.clone(),
-                px: Default::default()
-            });
-
-        Ok(Recursive::new(inner_samples_reader, OptionalSampleReader {
-            reader, default_sample: self.default_sample,
-        }))
-    }
-}
-
-impl<Sample, ReadChannels> ReadSpecificChannel for ReadRequiredChannel<ReadChannels, Sample>
-    where ReadChannels: ReadSpecificChannel, Sample: FromNativeSample + 'static
-{
-    type RecursivePixelReader = Recursive<ReadChannels::RecursivePixelReader, SampleReader<Sample>>;
-
-    fn create_recursive_reader(&self, channels: &ChannelList) -> Result<Self::RecursivePixelReader> {
-        let previous_samples_reader = self.previous_channels.create_recursive_reader(channels)?;
-        let (channel_byte_offset, channel) = channels.channels_with_byte_offset()
-                .find(|(_, channel)| channel.name == self.channel_name)
-                .ok_or_else(|| Error::invalid(format!(
-                    "layer does not contain all of your specified channels (`{}` is missing)",
-                    self.channel_name
-                )))?;
-
-        Ok(Recursive::new(previous_samples_reader, SampleReader { channel_byte_offset, channel: channel.clone(), px: Default::default() }))
-    }
-}
-
-/// Reader for a single channel. Generic over the concrete sample type (f16, f32, u32).
-#[derive(Clone, Debug)]
-pub struct SampleReader<Sample> {
-
-    /// to be multiplied with line width!
-    channel_byte_offset: usize,
-
-    channel: ChannelDescription,
-    px: PhantomData<Sample>
-}
-
-/// Reader for a single channel. Generic over the concrete sample type (f16, f32, u32).
-/// Can also skip reading a channel if it could not be found in the image.
-#[derive(Clone, Debug)]
-pub struct OptionalSampleReader<DefaultSample> {
-    reader: Option<SampleReader<DefaultSample>>,
-    default_sample: DefaultSample,
-}
-
-impl<Sample: FromNativeSample> SampleReader<Sample> {
-    fn read_own_samples<'s, FullPixel>(
-        &self, bytes: &'s[u8], pixels: &mut [FullPixel],
-        get_sample: impl Fn(&mut FullPixel) -> &mut Sample
-    ){
-        let start_index = pixels.len() * self.channel_byte_offset;
-        let byte_count = pixels.len() * self.channel.sample_type.bytes_per_sample();
-        let mut own_bytes_reader = &mut &bytes[start_index .. start_index + byte_count]; // TODO check block size somewhere
-        let mut samples_out = pixels.iter_mut().map(|pixel| get_sample(pixel));
-
-        // match the type once for the whole line, not on every single sample
-        match self.channel.sample_type {
-            SampleType::F16 => read_and_convert_all_samples_batched(
-                &mut own_bytes_reader, &mut samples_out,
-                Sample::from_f16s
-            ),
-
-            SampleType::F32 => read_and_convert_all_samples_batched(
-                &mut own_bytes_reader, &mut samples_out,
-                Sample::from_f32s
-            ),
-
-            SampleType::U32 => read_and_convert_all_samples_batched(
-                &mut own_bytes_reader, &mut samples_out,
-                Sample::from_u32s
-            ),
-        }
-
-        debug_assert!(samples_out.next().is_none(), "not all samples have been converted");
-        debug_assert!(own_bytes_reader.is_empty(), "bytes left after reading all samples");
-    }
-}
-
-
-/// Does the same as `convert_batch(in_bytes.chunks().map(From::from_bytes))`, but vectorized.
-/// Reads the samples for one line, using the sample type specified in the file,
-/// and then converts those to the desired sample types.
-/// Uses batches to allow vectorization, converting multiple values with one instruction.
-fn read_and_convert_all_samples_batched<'t, From, To>(
-    mut in_bytes: impl Read,
-    out_samples: &mut impl ExactSizeIterator<Item=&'t mut To>,
-    convert_batch: fn(&[From], &mut [To])
-) where From: Data + Default + Copy, To: 't + Default + Copy
-{
-    // this is not a global! why is this warning triggered?
-    #[allow(non_upper_case_globals)]
-    const batch_size: usize = 16;
-
-    let total_sample_count = out_samples.len();
-    let batch_count = total_sample_count / batch_size;
-    let remaining_samples_count = total_sample_count % batch_size;
-
-    let len_error_msg = "sample count was miscalculated";
-    let byte_error_msg = "error when reading from in-memory slice";
-
-    // write samples from a given slice to the output iterator. should be inlined.
-    let output_n_samples = &mut move |samples: &[To]| {
-        for converted_sample in samples {
-            *out_samples.next().expect(len_error_msg) = *converted_sample;
-        }
-    };
-
-    // read samples from the byte source into a given slice. should be inlined.
-    // todo: use #[inline] when available
-    // error[E0658]: attributes on expressions are experimental,
-    // see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information
-    let read_n_samples = &mut move |samples: &mut [From]| {
-        Data::read_slice(&mut in_bytes, samples).expect(byte_error_msg);
-    };
-
-    // temporary arrays with fixed size, operations should be vectorized within these arrays
-    let mut source_samples_batch: [From; batch_size] = Default::default();
-    let mut desired_samples_batch: [To; batch_size] = Default::default();
-
-    // first convert all whole batches, size statically known to be 16 element arrays
-    for _ in 0 .. batch_count {
-        read_n_samples(&mut source_samples_batch);
-        convert_batch(source_samples_batch.as_slice(), desired_samples_batch.as_mut_slice());
-        output_n_samples(&desired_samples_batch);
-    }
-
-    // then convert a partial remaining batch, size known only at runtime
-    if remaining_samples_count != 0 {
-        let source_samples_batch = &mut source_samples_batch[..remaining_samples_count];
-        let desired_samples_batch = &mut desired_samples_batch[..remaining_samples_count];
-
-        read_n_samples(source_samples_batch);
-        convert_batch(source_samples_batch, desired_samples_batch);
-        output_n_samples(desired_samples_batch);
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn equals_naive_f32(){
-        for total_array_size in [3, 7, 30, 41, 120, 10_423] {
-            let input_f32s = (0..total_array_size).map(|_| rand::random::<f32>()).collect::<Vec<f32>>();
-            let in_f32s_bytes = input_f32s.iter().cloned().flat_map(f32::to_le_bytes).collect::<Vec<u8>>();
-
-            let mut out_f16_samples_batched = vec![
-                f16::from_f32(rand::random::<f32>());
-                total_array_size
-            ];
-
-            read_and_convert_all_samples_batched(
-                &mut in_f32s_bytes.as_slice(),
-                &mut out_f16_samples_batched.iter_mut(),
-                f16::from_f32s
-            );
-
-            let out_f16_samples_naive = input_f32s.iter()
-                .cloned().map(f16::from_f32);
-
-            assert!(out_f16_samples_naive.eq(out_f16_samples_batched));
-        }
-    }
-}
-
-
-impl RecursivePixelReader for NoneMore {
-    type RecursiveChannelDescriptions = NoneMore;
-    fn get_descriptions(&self) -> Self::RecursiveChannelDescriptions { NoneMore }
-
-    type RecursivePixel = NoneMore;
-
-    fn read_pixels<'s, FullPixel>(
-        &self, _: &'s[u8], _: &mut [FullPixel],
-        _: impl Fn(&mut FullPixel) -> &mut NoneMore
-    ){}
-}
-
-impl<Sample, InnerReader: RecursivePixelReader>
-    RecursivePixelReader
-    for Recursive<InnerReader, SampleReader<Sample>>
-    where Sample: FromNativeSample + 'static
-{
-    type RecursiveChannelDescriptions = Recursive<InnerReader::RecursiveChannelDescriptions, ChannelDescription>;
-    fn get_descriptions(&self) -> Self::RecursiveChannelDescriptions { Recursive::new(self.inner.get_descriptions(), self.value.channel.clone()) }
-
-    type RecursivePixel = Recursive<InnerReader::RecursivePixel, Sample>;
-
-    fn read_pixels<'s, FullPixel>(
-        &self, bytes: &'s[u8], pixels: &mut [FullPixel],
-        get_pixel: impl Fn(&mut FullPixel) -> &mut Self::RecursivePixel
-    ) {
-        self.value.read_own_samples(bytes, pixels, |px| &mut get_pixel(px).value);
-        self.inner.read_pixels(bytes, pixels, |px| &mut get_pixel(px).inner);
-    }
-}
-
-impl<Sample, InnerReader: RecursivePixelReader>
-RecursivePixelReader
-for Recursive<InnerReader, OptionalSampleReader<Sample>>
-    where Sample: FromNativeSample + 'static
-{
-    type RecursiveChannelDescriptions = Recursive<InnerReader::RecursiveChannelDescriptions, Option<ChannelDescription>>;
-    fn get_descriptions(&self) -> Self::RecursiveChannelDescriptions { Recursive::new(
-        self.inner.get_descriptions(), self.value.reader.as_ref().map(|reader| reader.channel.clone())
-    ) }
-
-    type RecursivePixel = Recursive<InnerReader::RecursivePixel, Sample>;
-
-    fn read_pixels<'s, FullPixel>(
-        &self, bytes: &'s[u8], pixels: &mut [FullPixel],
-        get_pixel: impl Fn(&mut FullPixel) -> &mut Self::RecursivePixel
-    ) {
-        if let Some(reader) = &self.value.reader {
-            reader.read_own_samples(bytes, pixels, |px| &mut get_pixel(px).value);
-        }
-        else {
-            // if this channel is optional and was not found in the file, fill the default sample
-            for pixel in pixels.iter_mut() {
-                get_pixel(pixel).value = self.value.default_sample;
-            }
-        }
-
-        self.inner.read_pixels(bytes, pixels, |px| &mut get_pixel(px).inner);
-    }
-}
-
-