Rename Raw-rs to Rawkit (#2088)

* Rename within files * Rename in CI * Rename the folder and file names * Rename raw_rs to rawkit * Add example to README * Add initial documentation * Small API changes and extra documentation * Bump versions and stuff * Readme improvements * Merge proc-macro crates into one * Add README to rawkit-proc-macros * Remove keywords and categories * Add licenses to rawkit-proc-macros --------- Co-authored-by: Keavon Chambers <keavon@keavon.com>
2026-09-16 23:08:05 +08:00 · 2024-11-03 13:40:39 +05:30
parent 8d3da83606
commit 8fdecaa487
89 changed files with 664 additions and 356 deletions
--- a/libraries/rawkit/src/decoder/uncompressed.rs
+++ b/libraries/rawkit/src/decoder/uncompressed.rs
@@ -0,0 +1,67 @@
+use crate::tiff::file::TiffRead;
+use crate::tiff::tags::{BitsPerSample, BlackLevel, CfaPattern, CfaPatternDim, Compression, ImageLength, ImageWidth, RowsPerStrip, StripByteCounts, StripOffsets, Tag, WhiteBalanceRggbLevels};
+use crate::tiff::{Ifd, TiffError};
+use crate::{RawImage, SubtractBlack, Transform};
+
+use rawkit_proc_macros::Tag;
+use std::io::{Read, Seek};
+
+#[allow(dead_code)]
+#[derive(Tag)]
+struct ArwUncompressedIfd {
+	image_width: ImageWidth,
+	image_height: ImageLength,
+	rows_per_strip: RowsPerStrip,
+	bits_per_sample: BitsPerSample,
+	compression: Compression,
+	black_level: BlackLevel,
+	cfa_pattern: CfaPattern,
+	cfa_pattern_dim: CfaPatternDim,
+	strip_offsets: StripOffsets,
+	strip_byte_counts: StripByteCounts,
+	white_balance_levels: Option<WhiteBalanceRggbLevels>,
+}
+
+pub fn decode<R: Read + Seek>(ifd: Ifd, file: &mut TiffRead<R>) -> RawImage {
+	let ifd = ifd.get_value::<ArwUncompressedIfd, _>(file).unwrap();
+
+	assert!(ifd.strip_offsets.len() == ifd.strip_byte_counts.len());
+	assert!(ifd.strip_offsets.len() == 1);
+	assert!(ifd.compression == 1); // 1 is the value for uncompressed format
+
+	let image_width: usize = ifd.image_width.try_into().unwrap();
+	let image_height: usize = ifd.image_height.try_into().unwrap();
+	let rows_per_strip: usize = ifd.rows_per_strip.try_into().unwrap();
+	let bits_per_sample: usize = ifd.bits_per_sample.into();
+	let [cfa_pattern_width, cfa_pattern_height] = ifd.cfa_pattern_dim;
+	assert!(cfa_pattern_width == 2 && cfa_pattern_height == 2);
+
+	let mut image: Vec<u16> = Vec::with_capacity(image_height * image_width);
+
+	for i in 0..ifd.strip_offsets.len() {
+		file.seek_from_start(ifd.strip_offsets[i]).unwrap();
+
+		let last = i == ifd.strip_offsets.len();
+		let rows = if last { image_height % rows_per_strip } else { rows_per_strip };
+
+		for _ in 0..rows {
+			for _ in 0..image_width {
+				image.push(file.read_u16().unwrap());
+			}
+		}
+	}
+
+	RawImage {
+		data: image,
+		width: image_width,
+		height: image_height,
+		cfa_pattern: ifd.cfa_pattern.try_into().unwrap(),
+		maximum: if bits_per_sample == 16 { u16::MAX } else { (1 << bits_per_sample) - 1 },
+		black: SubtractBlack::CfaGrid(ifd.black_level),
+		transform: Transform::Horizontal,
+		camera_model: None,
+		camera_white_balance: ifd.white_balance_levels.map(|arr| arr.map(|x| x as f64)),
+		white_balance: None,
+		camera_to_rgb: None,
+	}
+}