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Diffstat (limited to 'vendor/image/src/codecs/pnm/mod.rs')
| -rw-r--r-- | vendor/image/src/codecs/pnm/mod.rs | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/vendor/image/src/codecs/pnm/mod.rs b/vendor/image/src/codecs/pnm/mod.rs deleted file mode 100644 index de8612d..0000000 --- a/vendor/image/src/codecs/pnm/mod.rs +++ /dev/null @@ -1,184 +0,0 @@ -//! Decoding of netpbm image formats (pbm, pgm, ppm and pam). -//! -//! The formats pbm, pgm and ppm are fully supported. The pam decoder recognizes the tuple types -//! `BLACKANDWHITE`, `GRAYSCALE` and `RGB` and explicitly recognizes but rejects their `_ALPHA` -//! variants for now as alpha color types are unsupported. -use self::autobreak::AutoBreak; -pub use self::decoder::PnmDecoder; -pub use self::encoder::PnmEncoder; -use self::header::HeaderRecord; -pub use self::header::{ - ArbitraryHeader, ArbitraryTuplType, BitmapHeader, GraymapHeader, PixmapHeader, -}; -pub use self::header::{PnmHeader, PnmSubtype, SampleEncoding}; - -mod autobreak; -mod decoder; -mod encoder; -mod header; - -#[cfg(test)] -mod tests { - use super::*; - use crate::color::ColorType; - use crate::image::ImageDecoder; - use byteorder::{ByteOrder, NativeEndian}; - - fn execute_roundtrip_default(buffer: &[u8], width: u32, height: u32, color: ColorType) { - let mut encoded_buffer = Vec::new(); - - { - let mut encoder = PnmEncoder::new(&mut encoded_buffer); - encoder - .encode(buffer, width, height, color) - .expect("Failed to encode the image buffer"); - } - - let (header, loaded_color, loaded_image) = { - let decoder = PnmDecoder::new(&encoded_buffer[..]).unwrap(); - let color_type = decoder.color_type(); - let mut image = vec![0; decoder.total_bytes() as usize]; - decoder - .read_image(&mut image) - .expect("Failed to decode the image"); - let (_, header) = PnmDecoder::new(&encoded_buffer[..]).unwrap().into_inner(); - (header, color_type, image) - }; - - assert_eq!(header.width(), width); - assert_eq!(header.height(), height); - assert_eq!(loaded_color, color); - assert_eq!(loaded_image.as_slice(), buffer); - } - - fn execute_roundtrip_with_subtype( - buffer: &[u8], - width: u32, - height: u32, - color: ColorType, - subtype: PnmSubtype, - ) { - let mut encoded_buffer = Vec::new(); - - { - let mut encoder = PnmEncoder::new(&mut encoded_buffer).with_subtype(subtype); - encoder - .encode(buffer, width, height, color) - .expect("Failed to encode the image buffer"); - } - - let (header, loaded_color, loaded_image) = { - let decoder = PnmDecoder::new(&encoded_buffer[..]).unwrap(); - let color_type = decoder.color_type(); - let mut image = vec![0; decoder.total_bytes() as usize]; - decoder - .read_image(&mut image) - .expect("Failed to decode the image"); - let (_, header) = PnmDecoder::new(&encoded_buffer[..]).unwrap().into_inner(); - (header, color_type, image) - }; - - assert_eq!(header.width(), width); - assert_eq!(header.height(), height); - assert_eq!(header.subtype(), subtype); - assert_eq!(loaded_color, color); - assert_eq!(loaded_image.as_slice(), buffer); - } - - fn execute_roundtrip_u16(buffer: &[u16], width: u32, height: u32, color: ColorType) { - let mut encoded_buffer = Vec::new(); - - { - let mut encoder = PnmEncoder::new(&mut encoded_buffer); - encoder - .encode(buffer, width, height, color) - .expect("Failed to encode the image buffer"); - } - - let (header, loaded_color, loaded_image) = { - let decoder = PnmDecoder::new(&encoded_buffer[..]).unwrap(); - let color_type = decoder.color_type(); - let mut image = vec![0; decoder.total_bytes() as usize]; - decoder - .read_image(&mut image) - .expect("Failed to decode the image"); - let (_, header) = PnmDecoder::new(&encoded_buffer[..]).unwrap().into_inner(); - (header, color_type, image) - }; - - let mut buffer_u8 = vec![0; buffer.len() * 2]; - NativeEndian::write_u16_into(buffer, &mut buffer_u8[..]); - - assert_eq!(header.width(), width); - assert_eq!(header.height(), height); - assert_eq!(loaded_color, color); - assert_eq!(loaded_image, buffer_u8); - } - - #[test] - fn roundtrip_gray() { - #[rustfmt::skip] - let buf: [u8; 16] = [ - 0, 0, 0, 255, - 255, 255, 255, 255, - 255, 0, 255, 0, - 255, 0, 0, 0, - ]; - - execute_roundtrip_default(&buf, 4, 4, ColorType::L8); - execute_roundtrip_with_subtype(&buf, 4, 4, ColorType::L8, PnmSubtype::ArbitraryMap); - execute_roundtrip_with_subtype( - &buf, - 4, - 4, - ColorType::L8, - PnmSubtype::Graymap(SampleEncoding::Ascii), - ); - execute_roundtrip_with_subtype( - &buf, - 4, - 4, - ColorType::L8, - PnmSubtype::Graymap(SampleEncoding::Binary), - ); - } - - #[test] - fn roundtrip_rgb() { - #[rustfmt::skip] - let buf: [u8; 27] = [ - 0, 0, 0, - 0, 0, 255, - 0, 255, 0, - 0, 255, 255, - 255, 0, 0, - 255, 0, 255, - 255, 255, 0, - 255, 255, 255, - 255, 255, 255, - ]; - execute_roundtrip_default(&buf, 3, 3, ColorType::Rgb8); - execute_roundtrip_with_subtype(&buf, 3, 3, ColorType::Rgb8, PnmSubtype::ArbitraryMap); - execute_roundtrip_with_subtype( - &buf, - 3, - 3, - ColorType::Rgb8, - PnmSubtype::Pixmap(SampleEncoding::Binary), - ); - execute_roundtrip_with_subtype( - &buf, - 3, - 3, - ColorType::Rgb8, - PnmSubtype::Pixmap(SampleEncoding::Ascii), - ); - } - - #[test] - fn roundtrip_u16() { - let buf: [u16; 6] = [0, 1, 0xFFFF, 0x1234, 0x3412, 0xBEAF]; - - execute_roundtrip_u16(&buf, 6, 1, ColorType::L16); - } -} |