Initial vendor packages

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

vendor/tiff/tests/benches/README.md

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+Copyrights:
+
+kodim*.png: Eastman Kodak Company, released for unrestricted use
+Transparency.png: Public Domain, according to Wikimedia

vendor/tiff/tests/decode_bigtiff_images.rs

@@ -0,0 +1,46 @@
+extern crate tiff;
+
+use tiff::decoder::Decoder;
+use tiff::tags::Tag;
+use tiff::ColorType;
+
+use std::fs::File;
+use std::path::PathBuf;
+
+const TEST_IMAGE_DIR: &str = "./tests/images/bigtiff";
+
+#[test]
+fn test_big_tiff() {
+    let filenames = ["BigTIFF.tif", "BigTIFFMotorola.tif", "BigTIFFLong.tif"];
+    for filename in filenames.iter() {
+        let path = PathBuf::from(TEST_IMAGE_DIR).join(filename);
+        let img_file = File::open(path).expect("Cannot find test image!");
+        let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
+        assert_eq!(
+            decoder.dimensions().expect("Cannot get dimensions"),
+            (64, 64)
+        );
+        assert_eq!(
+            decoder.colortype().expect("Cannot get colortype"),
+            ColorType::RGB(8)
+        );
+        assert_eq!(
+            decoder
+                .get_tag_u64(Tag::StripOffsets)
+                .expect("Cannot get StripOffsets"),
+            16
+        );
+        assert_eq!(
+            decoder
+                .get_tag_u64(Tag::RowsPerStrip)
+                .expect("Cannot get RowsPerStrip"),
+            64
+        );
+        assert_eq!(
+            decoder
+                .get_tag_u64(Tag::StripByteCounts)
+                .expect("Cannot get StripByteCounts"),
+            12288
+        )
+    }
+}

vendor/tiff/tests/decode_images.rs

@@ -0,0 +1,479 @@
+extern crate tiff;
+
+use tiff::decoder::{ifd, Decoder, DecodingResult};
+use tiff::ColorType;
+
+use std::fs::File;
+use std::path::PathBuf;
+
+const TEST_IMAGE_DIR: &str = "./tests/images/";
+
+macro_rules! test_image_sum {
+    ($name:ident, $buffer:ident, $sum_ty:ty) => {
+        fn $name(file: &str, expected_type: ColorType, expected_sum: $sum_ty) {
+            let path = PathBuf::from(TEST_IMAGE_DIR).join(file);
+            let img_file = File::open(path).expect("Cannot find test image!");
+            let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
+            assert_eq!(decoder.colortype().unwrap(), expected_type);
+            let img_res = decoder.read_image().unwrap();
+
+            match img_res {
+                DecodingResult::$buffer(res) => {
+                    let sum: $sum_ty = res.into_iter().map(<$sum_ty>::from).sum();
+                    assert_eq!(sum, expected_sum);
+                }
+                _ => panic!("Wrong bit depth"),
+            }
+        }
+    };
+}
+
+test_image_sum!(test_image_sum_u8, U8, u64);
+test_image_sum!(test_image_sum_i8, I8, i64);
+test_image_sum!(test_image_sum_u16, U16, u64);
+test_image_sum!(test_image_sum_i16, I16, i64);
+test_image_sum!(test_image_sum_u32, U32, u64);
+test_image_sum!(test_image_sum_u64, U64, u64);
+test_image_sum!(test_image_sum_f32, F32, f32);
+test_image_sum!(test_image_sum_f64, F64, f64);
+
+/// Tests that a decoder can be constructed for an image and the color type
+/// read from the IFD and is of the appropriate type, but the type is
+/// unsupported.
+fn test_image_color_type_unsupported(file: &str, expected_type: ColorType) {
+    let path = PathBuf::from(TEST_IMAGE_DIR).join(file);
+    let img_file = File::open(path).expect("Cannot find test image!");
+    let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
+    assert_eq!(decoder.colortype().unwrap(), expected_type);
+    assert!(match decoder.read_image() {
+        Err(tiff::TiffError::UnsupportedError(
+            tiff::TiffUnsupportedError::UnsupportedColorType(_),
+        )) => true,
+        _ => false,
+    });
+}
+
+#[test]
+fn test_cmyk_u8() {
+    test_image_sum_u8("cmyk-3c-8b.tiff", ColorType::CMYK(8), 8522658);
+}
+
+#[test]
+fn test_cmyk_u16() {
+    test_image_sum_u16("cmyk-3c-16b.tiff", ColorType::CMYK(16), 2181426827);
+}
+
+#[test]
+fn test_cmyk_f32() {
+    test_image_sum_f32("cmyk-3c-32b-float.tiff", ColorType::CMYK(32), 496.0405);
+}
+
+#[test]
+fn test_gray_u8() {
+    test_image_sum_u8("minisblack-1c-8b.tiff", ColorType::Gray(8), 2840893);
+}
+
+#[test]
+fn test_gray_u12() {
+    test_image_color_type_unsupported("12bit.cropped.tiff", ColorType::Gray(12));
+}
+
+#[test]
+fn test_gray_u16() {
+    test_image_sum_u16("minisblack-1c-16b.tiff", ColorType::Gray(16), 733126239);
+}
+
+#[test]
+fn test_gray_u32() {
+    test_image_sum_u32("gradient-1c-32b.tiff", ColorType::Gray(32), 549892913787);
+}
+
+#[test]
+fn test_gray_u64() {
+    test_image_sum_u64("gradient-1c-64b.tiff", ColorType::Gray(64), 549892913787);
+}
+
+#[test]
+fn test_gray_f32() {
+    test_image_sum_f32("gradient-1c-32b-float.tiff", ColorType::Gray(32), 128.03194);
+}
+
+#[test]
+fn test_gray_f64() {
+    test_image_sum_f64(
+        "gradient-1c-64b-float.tiff",
+        ColorType::Gray(64),
+        128.0319210877642,
+    );
+}
+
+#[test]
+fn test_rgb_u8() {
+    test_image_sum_u8("rgb-3c-8b.tiff", ColorType::RGB(8), 7842108);
+}
+
+#[test]
+fn test_rgb_u12() {
+    test_image_color_type_unsupported("12bit.cropped.rgb.tiff", ColorType::RGB(12));
+}
+
+#[test]
+fn test_rgb_u16() {
+    test_image_sum_u16("rgb-3c-16b.tiff", ColorType::RGB(16), 2024349944);
+}
+
+#[test]
+fn test_rgb_u32() {
+    test_image_sum_u32("gradient-3c-32b.tiff", ColorType::RGB(32), 2030834111716);
+}
+
+#[test]
+fn test_rgb_u64() {
+    test_image_sum_u64("gradient-3c-64b.tiff", ColorType::RGB(64), 2030834111716);
+}
+
+#[test]
+fn test_rgb_f32() {
+    test_image_sum_f32("gradient-3c-32b-float.tiff", ColorType::RGB(32), 472.8405);
+}
+
+#[test]
+fn test_int8() {
+    test_image_sum_i8("int8.tif", ColorType::Gray(8), 3111)
+}
+
+#[test]
+fn test_int8_rgb() {
+    test_image_sum_i8("int8_rgb.tif", ColorType::RGB(8), -10344)
+}
+
+#[test]
+fn test_int16() {
+    test_image_sum_i16("int16.tif", ColorType::Gray(16), 354396);
+}
+
+#[test]
+fn test_int16_rgb() {
+    test_image_sum_i16("int16_rgb.tif", ColorType::RGB(16), 1063188);
+}
+
+#[test]
+fn test_string_tags() {
+    // these files have null-terminated strings for their Software tag. One has extra bytes after
+    // the null byte, so we check both to ensure that we're truncating properly
+    let filenames = ["minisblack-1c-16b.tiff", "rgb-3c-16b.tiff"];
+    for filename in filenames.iter() {
+        let path = PathBuf::from(TEST_IMAGE_DIR).join(filename);
+        let img_file = File::open(path).expect("Cannot find test image!");
+        let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
+        let software = decoder.get_tag(tiff::tags::Tag::Software).unwrap();
+        match software {
+            ifd::Value::Ascii(s) => assert_eq!(
+                &s,
+                "GraphicsMagick 1.2 unreleased Q16 http://www.GraphicsMagick.org/"
+            ),
+            _ => assert!(false),
+        };
+    }
+}
+
+#[test]
+fn test_decode_data() {
+    let mut image_data = Vec::new();
+    for x in 0..100 {
+        for y in 0..100u8 {
+            let val = x + y;
+            image_data.push(val);
+            image_data.push(val);
+            image_data.push(val);
+        }
+    }
+    let file = File::open("./tests/decodedata-rgb-3c-8b.tiff").unwrap();
+    let mut decoder = Decoder::new(file).unwrap();
+    assert_eq!(decoder.colortype().unwrap(), ColorType::RGB(8));
+    assert_eq!(decoder.dimensions().unwrap(), (100, 100));
+    if let DecodingResult::U8(img_res) = decoder.read_image().unwrap() {
+        assert_eq!(image_data, img_res);
+    } else {
+        panic!("Wrong data type");
+    }
+}
+
+#[test]
+fn issue_69() {
+    test_image_sum_u16("issue_69_lzw.tiff", ColorType::Gray(16), 1015486);
+    test_image_sum_u16("issue_69_packbits.tiff", ColorType::Gray(16), 1015486);
+}
+
+// TODO: GrayA support
+//#[test]
+//fn test_gray_alpha_u8()
+//{
+//let img_file = File::open("./tests/images/minisblack-2c-8b-alpha.tiff").expect("Cannot find test image!");
+//let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
+//assert_eq!(decoder.colortype().unwrap(), ColorType::GrayA(8));
+//let img_res = decoder.read_image();
+//assert!(img_res.is_ok());
+//}
+
+#[test]
+fn test_tiled_rgb_u8() {
+    test_image_sum_u8("tiled-rgb-u8.tif", ColorType::RGB(8), 39528948);
+}
+
+#[test]
+fn test_tiled_rect_rgb_u8() {
+    test_image_sum_u8("tiled-rect-rgb-u8.tif", ColorType::RGB(8), 62081032);
+}
+
+/* #[test]
+fn test_tiled_jpeg_rgb_u8() {
+    test_image_sum_u8("tiled-jpeg-rgb-u8.tif", ColorType::RGB(8), 93031606);
+} */
+
+#[test]
+fn test_tiled_oversize_gray_i8() {
+    test_image_sum_i8("tiled-oversize-gray-i8.tif", ColorType::Gray(8), 1214996);
+}
+
+#[test]
+fn test_tiled_cmyk_i8() {
+    test_image_sum_i8("tiled-cmyk-i8.tif", ColorType::CMYK(8), 1759101);
+}
+
+#[test]
+fn test_tiled_incremental() {
+    let file = "tiled-rgb-u8.tif";
+    let expected_type = ColorType::RGB(8);
+    let sums = [
+        188760, 195639, 108148, 81986, 665088, 366140, 705317, 423366, 172033, 324455, 244102,
+        81853, 181258, 247971, 129486, 55600, 565625, 422102, 730888, 379271, 232142, 292549,
+        244045, 86866, 188141, 115036, 150785, 84389, 353170, 459325, 719619, 329594, 278663,
+        220474, 243048, 113563, 189152, 109684, 179391, 122188, 279651, 622093, 724682, 302459,
+        268428, 204499, 224255, 124674, 170668, 121868, 192768, 183367, 378029, 585651, 657712,
+        296790, 241444, 197083, 198429, 134869, 182318, 86034, 203655, 182338, 297255, 601284,
+        633813, 242531, 228578, 206441, 193552, 125412, 181527, 165439, 202531, 159538, 268388,
+        565790, 611382, 272967, 236497, 215154, 158881, 90806, 106114, 182342, 191824, 186138,
+        215174, 393193, 701228, 198866, 227944, 193830, 166330, 49008, 55719, 122820, 197316,
+        161969, 203152, 170986, 624427, 188605, 186187, 111064, 115192, 39538, 48626, 163929,
+        144682, 135796, 194141, 154198, 584125, 180255, 153524, 121433, 132641, 35743, 47798,
+        152343, 162874, 167664, 160175, 133038, 659882, 138339, 166470, 124173, 118929, 51317,
+        45267, 155776, 161331, 161006, 130052, 137618, 337291, 106481, 161999, 127343, 87724,
+        59540, 63907, 155677, 140668, 141523, 108061, 168657, 186482, 98599, 147614, 139963, 90444,
+        56602, 92547, 125644, 134212, 126569, 144153, 179800, 174516, 133969, 129399, 117681,
+        83305, 55075, 110737, 115108, 128572, 128911, 130922, 179986, 143288, 145884, 155856,
+        96683, 94057, 56238, 79649, 71651, 70182, 75010, 77009, 98855, 78979, 74341, 83482, 53403,
+        59842, 30305,
+    ];
+
+    let path = PathBuf::from(TEST_IMAGE_DIR).join(file);
+    let img_file = File::open(path).expect("Cannot find test image!");
+    let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
+    assert_eq!(decoder.colortype().unwrap(), expected_type);
+
+    let tiles = decoder.tile_count().unwrap();
+    assert_eq!(tiles as usize, sums.len());
+
+    for tile in 0..tiles {
+        match decoder.read_chunk(tile).unwrap() {
+            DecodingResult::U8(res) => {
+                let sum: u64 = res.into_iter().map(<u64>::from).sum();
+                assert_eq!(sum, sums[tile as usize]);
+            }
+            _ => panic!("Wrong bit depth"),
+        }
+    }
+}
+
+#[test]
+fn test_div_zero() {
+    use tiff::{TiffError, TiffFormatError};
+
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 40, 1, 0, 0,
+        0, 158, 0, 0, 251, 3, 1, 3, 0, 1, 0, 0, 0, 1, 0, 0, 39, 6, 1, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0,
+        17, 1, 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 3, 0, 1, 0, 0, 0, 158, 0, 0, 251, 67, 1, 3, 0,
+        1, 0, 0, 0, 40, 0, 0, 0, 66, 1, 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 48, 178, 178, 178, 178,
+        178, 178, 178,
+    ];
+
+    let err = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+
+    match err {
+        TiffError::FormatError(TiffFormatError::StripTileTagConflict) => {}
+        unexpected => panic!("Unexpected error {}", unexpected),
+    }
+}
+
+#[test]
+fn test_too_many_value_bytes() {
+    let image = [
+        73, 73, 43, 0, 8, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 0, 8, 0, 0, 0,
+        23, 0, 12, 0, 0, 65, 4, 0, 1, 6, 0, 0, 1, 16, 0, 1, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0,
+        0, 0, 3, 0, 1, 0, 0, 0, 1, 0, 0, 0, 59, 73, 84, 186, 202, 83, 240, 66, 1, 53, 22, 56, 47,
+        0, 0, 0, 0, 0, 0, 1, 222, 4, 0, 58, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 4, 0, 0, 100, 0,
+        0, 89, 89, 89, 89, 89, 89, 89, 89, 96, 1, 20, 89, 89, 89, 89, 18,
+    ];
+
+    let error = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+
+    match error {
+        tiff::TiffError::LimitsExceeded => {}
+        unexpected => panic!("Unexpected error {}", unexpected),
+    }
+}
+
+#[test]
+fn fuzzer_testcase5() {
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 100, 0, 0, 0, 1, 1, 4, 0, 1, 0, 0,
+        0, 158, 0, 0, 251, 3, 1, 3, 0, 1, 0, 0, 0, 1, 0, 0, 0, 6, 1, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0,
+        17, 1, 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 1, 3, 0, 0, 0, 0, 0, 246, 16, 0, 0, 22, 1, 4, 0, 1,
+        0, 0, 0, 40, 0, 251, 255, 23, 1, 4, 0, 1, 0, 0, 0, 48, 178, 178, 178, 178, 178, 178, 178,
+        178, 178, 178,
+    ];
+
+    let mut decoder = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap();
+
+    let _ = decoder.read_image().unwrap_err();
+}
+
+#[test]
+fn fuzzer_testcase1() {
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 99, 255, 255, 254, 1, 1, 4, 0, 1,
+        0, 0, 0, 158, 0, 0, 251, 3, 1, 3, 255, 254, 255, 255, 0, 1, 0, 0, 0, 6, 1, 3, 0, 1, 0, 0,
+        0, 0, 0, 0, 0, 17, 1, 4, 0, 9, 0, 0, 0, 0, 0, 0, 0, 2, 1, 3, 0, 2, 0, 0, 0, 63, 0, 0, 0,
+        22, 1, 4, 0, 1, 0, 0, 0, 44, 0, 0, 0, 23, 1, 4, 0, 0, 0, 0, 0, 0, 0, 2, 1, 3, 1, 0, 178,
+        178,
+    ];
+
+    let _ = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+}
+
+#[test]
+fn test_stripped_image_overflow() {
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 100, 0, 0, 148, 1, 1, 4, 0, 1, 0,
+        0, 0, 158, 0, 0, 251, 3, 1, 3, 255, 254, 255, 255, 0, 1, 0, 0, 0, 6, 1, 3, 0, 1, 0, 0, 0,
+        0, 0, 0, 0, 17, 1, 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 1, 3, 0, 2, 0, 0, 0, 63, 0, 0, 0, 22,
+        1, 4, 0, 1, 0, 0, 0, 44, 0, 248, 255, 23, 1, 4, 0, 1, 0, 0, 0, 178, 178, 178, 0, 1, 178,
+        178, 178,
+    ];
+
+    let mut decoder = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap();
+
+    let err = decoder.read_image().unwrap_err();
+
+    match err {
+        tiff::TiffError::LimitsExceeded => {}
+        unexpected => panic!("Unexpected error {}", unexpected),
+    }
+}
+
+#[test]
+fn oom() {
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 40, 1, 0, 0,
+        0, 158, 0, 0, 251, 3, 1, 3, 0, 1, 0, 0, 0, 7, 0, 0, 0, 6, 1, 3, 0, 1, 0, 0, 0, 2, 0, 0, 0,
+        17, 1, 4, 0, 1, 0, 0, 0, 3, 77, 0, 0, 1, 1, 3, 0, 1, 0, 0, 0, 3, 128, 0, 0, 22, 1, 4, 0, 1,
+        0, 0, 0, 40, 0, 0, 0, 23, 1, 4, 0, 1, 0, 0, 0, 178, 48, 178, 178, 178, 178, 162, 178,
+    ];
+
+    let _ = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+}
+
+#[test]
+fn fuzzer_testcase4() {
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 40, 1, 0, 0,
+        0, 158, 0, 0, 251, 3, 1, 3, 0, 1, 0, 0, 0, 5, 0, 0, 0, 6, 1, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0,
+        17, 1, 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 3, 0, 1, 0, 0, 0, 3, 128, 0, 0, 22, 1, 4, 0, 1,
+        0, 0, 0, 40, 0, 0, 0, 23, 1, 4, 0, 1, 0, 0, 0, 48, 178, 178, 178, 0, 1, 0, 13, 13,
+    ];
+
+    let _ = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+}
+
+#[test]
+fn fuzzer_testcase2() {
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 15, 0, 0, 254, 44, 1, 0, 0, 0, 0, 0, 32, 0, 0, 0, 1, 4, 0, 1, 0,
+        0, 0, 0, 1, 0, 0, 91, 1, 1, 0, 0, 0, 0, 0, 242, 4, 0, 0, 0, 22, 0, 56, 77, 0, 77, 1, 0, 0,
+        73, 42, 0, 1, 4, 0, 1, 0, 0, 0, 4, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 158, 0, 0, 251, 3, 1,
+        3, 0, 1, 0, 0, 0, 7, 0, 0, 0, 6, 1, 3, 0, 1, 0, 0, 0, 2, 0, 0, 0, 17, 1, 4, 0, 1, 0, 0, 0,
+        0, 0, 0, 0, 1, 1, 3, 0, 1, 0, 0, 0, 0, 0, 0, 4, 61, 1, 18, 0, 1, 0, 0, 0, 202, 0, 0, 0, 17,
+        1, 100, 0, 129, 0, 0, 0, 0, 0, 0, 0, 232, 254, 252, 255, 254, 255, 255, 255, 1, 29, 0, 0,
+        22, 1, 3, 0, 1, 0, 0, 0, 16, 0, 0, 0, 23, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 123, 73, 254, 0,
+        73,
+    ];
+
+    let _ = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+}
+
+#[test]
+fn invalid_jpeg_tag_2() {
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 16, 0, 254, 0, 4, 0, 1, 0, 0, 0, 0, 0, 0, 242, 0, 1, 4, 0, 1, 0,
+        0, 0, 0, 129, 16, 0, 1, 1, 4, 0, 1, 0, 0, 0, 214, 0, 0, 248, 253, 1, 3, 0, 1, 0, 0, 0, 64,
+        0, 0, 0, 3, 1, 3, 0, 1, 0, 0, 0, 7, 0, 0, 0, 6, 1, 3, 0, 1, 0, 0, 0, 1, 0, 0, 64, 14, 1, 0,
+        2, 0, 0, 148, 0, 206, 0, 0, 0, 17, 1, 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0,
+        1, 0, 0, 0, 22, 1, 4, 0, 17, 0, 0, 201, 1, 0, 0, 0, 23, 1, 2, 0, 20, 0, 0, 0, 194, 0, 0, 0,
+        91, 1, 7, 0, 5, 0, 0, 0, 64, 0, 0, 0, 237, 254, 65, 255, 255, 255, 255, 255, 1, 0, 0, 0,
+        22, 1, 4, 0, 1, 0, 0, 0, 42, 0, 0, 0, 23, 1, 255, 255, 255, 255, 255, 36, 36, 0, 0, 0, 0,
+        0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 36, 73, 73, 0, 42, 36, 36, 36, 36, 0, 0, 8, 0,
+    ];
+
+    let _ = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+}
+
+#[test]
+fn fuzzer_testcase3() {
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 2, 0, 0, 0, 61, 1, 9, 0, 46, 22,
+        128, 0, 0, 0, 0, 1, 6, 1, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, 17, 1, 4, 0, 27, 0, 0, 0, 0, 0, 0,
+        0, 1, 1, 3, 0, 1, 0, 0, 0, 17, 1, 0, 231, 22, 1, 1, 0, 1, 0, 0, 0, 130, 0, 0, 0, 23, 1, 4,
+        0, 14, 0, 0, 0, 0, 0, 0, 0, 133, 133, 133, 77, 77, 77, 0, 0, 22, 128, 0, 255, 255, 255,
+        255, 255,
+    ];
+
+    let _ = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+}
+
+#[test]
+fn timeout() {
+    use tiff::{TiffError, TiffFormatError};
+
+    let image = [
+        73, 73, 42, 0, 8, 0, 0, 0, 16, 0, 254, 0, 4, 0, 1, 68, 0, 0, 0, 2, 0, 32, 254, 252, 0, 109,
+        0, 129, 0, 0, 0, 32, 0, 58, 0, 1, 4, 0, 1, 0, 6, 0, 0, 0, 8, 0, 0, 1, 73, 73, 42, 0, 8, 0,
+        0, 0, 8, 0, 0, 1, 4, 0, 1, 0, 0, 0, 21, 0, 0, 0, 61, 1, 255, 128, 9, 0, 0, 8, 0, 1, 113, 2,
+        3, 1, 3, 0, 1, 0, 0, 0, 5, 0, 65, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 112, 0, 0, 36, 0, 0,
+        0, 112, 56, 200, 0, 5, 0, 0, 64, 0, 0, 1, 0, 4, 0, 0, 0, 2, 0, 6, 1, 3, 0, 1, 0, 0, 0, 0,
+        0, 0, 4, 17, 1, 1, 0, 93, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 3, 6, 0, 231, 22, 1,
+        1, 0, 1, 0, 0, 0, 2, 64, 118, 36, 23, 1, 1, 0, 43, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 4, 0, 8,
+        0, 0, 73, 73, 42, 0, 8, 0, 0, 0, 0, 0, 32,
+    ];
+
+    let error = tiff::decoder::Decoder::new(std::io::Cursor::new(&image)).unwrap_err();
+
+    match error {
+        TiffError::FormatError(TiffFormatError::CycleInOffsets) => {}
+        e => panic!("Unexpected error {:?}", e),
+    }
+}
+
+#[test]
+fn test_no_rows_per_strip() {
+    test_image_sum_u8("no_rows_per_strip.tiff", ColorType::RGB(8), 99448840);
+}
+
+#[test]
+fn test_predictor_3_rgb_f32() {
+    test_image_sum_f32("predictor-3-rgb-f32.tif", ColorType::RGB(32), 54004.33);
+}
+
+#[test]
+fn test_predictor_3_gray_f32() {
+    test_image_sum_f32("predictor-3-gray-f32.tif", ColorType::Gray(32), 20008.275);
+}

vendor/tiff/tests/encode_images.rs

@@ -0,0 +1,529 @@
+extern crate tiff;
+
+use tiff::decoder::{ifd, Decoder, DecodingResult};
+use tiff::encoder::{colortype, Ifd, Ifd8, SRational, TiffEncoder};
+use tiff::tags::Tag;
+use tiff::ColorType;
+
+use std::fs::File;
+use std::io::{Cursor, Seek, SeekFrom};
+use std::path::PathBuf;
+
+#[test]
+fn encode_decode() {
+    let mut image_data = Vec::new();
+    for x in 0..100 {
+        for y in 0..100u8 {
+            let val = x + y;
+            image_data.push(val);
+            image_data.push(val);
+            image_data.push(val);
+        }
+    }
+    let mut file = Cursor::new(Vec::new());
+    {
+        let mut tiff = TiffEncoder::new(&mut file).unwrap();
+
+        let mut image = tiff.new_image::<colortype::RGB8>(100, 100).unwrap();
+        image
+            .encoder()
+            .write_tag(Tag::Artist, "Image-tiff")
+            .unwrap();
+        image.write_data(&image_data).unwrap();
+    }
+    {
+        file.seek(SeekFrom::Start(0)).unwrap();
+        let mut decoder = Decoder::new(&mut file).unwrap();
+        assert_eq!(decoder.colortype().unwrap(), ColorType::RGB(8));
+        assert_eq!(decoder.dimensions().unwrap(), (100, 100));
+        assert_eq!(
+            decoder.get_tag(Tag::Artist).unwrap(),
+            ifd::Value::Ascii("Image-tiff".into())
+        );
+        if let DecodingResult::U8(img_res) = decoder.read_image().unwrap() {
+            assert_eq!(image_data, img_res);
+        } else {
+            panic!("Wrong data type");
+        }
+    }
+}
+
+#[test]
+fn encode_decode_big() {
+    let mut image_data = Vec::new();
+    for x in 0..100 {
+        for y in 0..100u8 {
+            let val = x + y;
+            image_data.push(val);
+            image_data.push(val);
+            image_data.push(val);
+        }
+    }
+    let mut file = Cursor::new(Vec::new());
+    {
+        let mut tiff = TiffEncoder::new_big(&mut file).unwrap();
+
+        let mut image = tiff.new_image::<colortype::RGB8>(100, 100).unwrap();
+        image
+            .encoder()
+            .write_tag(Tag::Artist, "Image-tiff")
+            .unwrap();
+        image.write_data(&image_data).unwrap();
+    }
+    {
+        file.seek(SeekFrom::Start(0)).unwrap();
+        let mut decoder = Decoder::new(&mut file).unwrap();
+        assert_eq!(decoder.colortype().unwrap(), ColorType::RGB(8));
+        assert_eq!(decoder.dimensions().unwrap(), (100, 100));
+        assert_eq!(
+            decoder.get_tag(Tag::Artist).unwrap(),
+            ifd::Value::Ascii("Image-tiff".into())
+        );
+        if let DecodingResult::U8(img_res) = decoder.read_image().unwrap() {
+            assert_eq!(image_data, img_res);
+        } else {
+            panic!("Wrong data type");
+        }
+    }
+}
+
+#[test]
+fn test_encode_ifd() {
+    let mut data = Cursor::new(Vec::new());
+
+    {
+        let mut tiff = TiffEncoder::new(&mut data).unwrap();
+        let mut image_encoder = tiff.new_image::<colortype::Gray8>(1, 1).unwrap();
+        image_encoder.write_strip(&[1]).unwrap();
+        let encoder = image_encoder.encoder();
+
+        // Use the "reusable" tags section as per the TIFF6 spec
+        encoder.write_tag(Tag::Unknown(65000), Ifd(42u32)).unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65001), &[Ifd(100u32)][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65002), &[Ifd(1u32), Ifd(2u32), Ifd(3u32)][..])
+            .unwrap();
+
+        encoder.write_tag(Tag::Unknown(65010), Ifd8(43u64)).unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65011), &[Ifd8(100u64)][..])
+            .unwrap();
+        encoder
+            .write_tag(
+                Tag::Unknown(65012),
+                &[Ifd8(1u64), Ifd8(2u64), Ifd8(3u64)][..],
+            )
+            .unwrap();
+    }
+
+    // Rewind the cursor for reading
+    data.set_position(0);
+    {
+        let mut decoder = Decoder::new(&mut data).unwrap();
+
+        assert_eq!(decoder.assert_tag_u32(65000), 42);
+        assert_eq!(decoder.assert_tag_u32_vec(65000), [42]);
+        assert_eq!(decoder.assert_tag_u32_vec(65001), [100]);
+        assert_eq!(decoder.assert_tag_u32_vec(65002), [1, 2, 3]);
+
+        assert_eq!(decoder.assert_tag_u64(65010), 43);
+        assert_eq!(decoder.assert_tag_u64_vec(65010), [43]);
+        assert_eq!(decoder.assert_tag_u64_vec(65011), [100]);
+        assert_eq!(decoder.assert_tag_u64_vec(65012), [1, 2, 3]);
+    }
+}
+
+#[test]
+/// Test that attempting to encode when the input buffer is undersized returns
+/// an error rather than panicking.
+/// See: https://github.com/PistonDevelopers/image-tiff/issues/35
+fn test_encode_undersized_buffer() {
+    let input_data = vec![1, 2, 3];
+    let output = Vec::new();
+    let mut output_stream = Cursor::new(output);
+    if let Ok(mut tiff) = TiffEncoder::new(&mut output_stream) {
+        let res = tiff.write_image::<colortype::RGB8>(50, 50, &input_data);
+        assert!(res.is_err());
+    }
+}
+
+const TEST_IMAGE_DIR: &str = "./tests/images/";
+
+macro_rules! test_roundtrip {
+    ($name:ident, $buffer:ident, $buffer_ty:ty) => {
+        fn $name<C: colortype::ColorType<Inner = $buffer_ty>>(
+            file: &str,
+            expected_type: ColorType,
+        ) {
+            let path = PathBuf::from(TEST_IMAGE_DIR).join(file);
+            let img_file = File::open(path).expect("Cannot find test image!");
+            let mut decoder = Decoder::new(img_file).expect("Cannot create decoder");
+            assert_eq!(decoder.colortype().unwrap(), expected_type);
+
+            let image_data = match decoder.read_image().unwrap() {
+                DecodingResult::$buffer(res) => res,
+                _ => panic!("Wrong data type"),
+            };
+
+            let mut file = Cursor::new(Vec::new());
+            {
+                let mut tiff = TiffEncoder::new(&mut file).unwrap();
+
+                let (width, height) = decoder.dimensions().unwrap();
+                tiff.write_image::<C>(width, height, &image_data).unwrap();
+            }
+            file.seek(SeekFrom::Start(0)).unwrap();
+            {
+                let mut decoder = Decoder::new(&mut file).unwrap();
+                if let DecodingResult::$buffer(img_res) = decoder.read_image().unwrap() {
+                    assert_eq!(image_data, img_res);
+                } else {
+                    panic!("Wrong data type");
+                }
+            }
+        }
+    };
+}
+
+test_roundtrip!(test_u8_roundtrip, U8, u8);
+test_roundtrip!(test_u16_roundtrip, U16, u16);
+test_roundtrip!(test_u32_roundtrip, U32, u32);
+test_roundtrip!(test_u64_roundtrip, U64, u64);
+test_roundtrip!(test_f32_roundtrip, F32, f32);
+test_roundtrip!(test_f64_roundtrip, F64, f64);
+
+#[test]
+fn test_gray_u8_roundtrip() {
+    test_u8_roundtrip::<colortype::Gray8>("minisblack-1c-8b.tiff", ColorType::Gray(8));
+}
+
+#[test]
+fn test_rgb_u8_roundtrip() {
+    test_u8_roundtrip::<colortype::RGB8>("rgb-3c-8b.tiff", ColorType::RGB(8));
+}
+
+#[test]
+fn test_cmyk_u8_roundtrip() {
+    test_u8_roundtrip::<colortype::CMYK8>("cmyk-3c-8b.tiff", ColorType::CMYK(8));
+}
+
+#[test]
+fn test_gray_u16_roundtrip() {
+    test_u16_roundtrip::<colortype::Gray16>("minisblack-1c-16b.tiff", ColorType::Gray(16));
+}
+
+#[test]
+fn test_rgb_u16_roundtrip() {
+    test_u16_roundtrip::<colortype::RGB16>("rgb-3c-16b.tiff", ColorType::RGB(16));
+}
+
+#[test]
+fn test_cmyk_u16_roundtrip() {
+    test_u16_roundtrip::<colortype::CMYK16>("cmyk-3c-16b.tiff", ColorType::CMYK(16));
+}
+
+#[test]
+fn test_gray_u32_roundtrip() {
+    test_u32_roundtrip::<colortype::Gray32>("gradient-1c-32b.tiff", ColorType::Gray(32));
+}
+
+#[test]
+fn test_rgb_u32_roundtrip() {
+    test_u32_roundtrip::<colortype::RGB32>("gradient-3c-32b.tiff", ColorType::RGB(32));
+}
+
+#[test]
+fn test_gray_u64_roundtrip() {
+    test_u64_roundtrip::<colortype::Gray64>("gradient-1c-64b.tiff", ColorType::Gray(64));
+}
+
+#[test]
+fn test_rgb_u64_roundtrip() {
+    test_u64_roundtrip::<colortype::RGB64>("gradient-3c-64b.tiff", ColorType::RGB(64));
+}
+
+#[test]
+fn test_gray_f32_roundtrip() {
+    test_f32_roundtrip::<colortype::Gray32Float>("gradient-1c-32b-float.tiff", ColorType::Gray(32));
+}
+
+#[test]
+fn test_rgb_f32_roundtrip() {
+    test_f32_roundtrip::<colortype::RGB32Float>("gradient-3c-32b-float.tiff", ColorType::RGB(32));
+}
+
+#[test]
+fn test_cmyk_f32_roundtrip() {
+    test_f32_roundtrip::<colortype::CMYK32Float>("cmyk-3c-32b-float.tiff", ColorType::CMYK(32));
+}
+
+#[test]
+fn test_gray_f64_roundtrip() {
+    test_f64_roundtrip::<colortype::Gray64Float>("gradient-1c-64b-float.tiff", ColorType::Gray(64));
+}
+
+#[test]
+fn test_ycbcr_u8_roundtrip() {
+    test_u8_roundtrip::<colortype::YCbCr8>("tiled-jpeg-ycbcr.tif", ColorType::YCbCr(8));
+}
+
+trait AssertDecode {
+    fn assert_tag_u32(&mut self, tag: u16) -> u32;
+    fn assert_tag_u32_vec(&mut self, tag: u16) -> Vec<u32>;
+    fn assert_tag_i32(&mut self, tag: u16) -> i32;
+    fn assert_tag_i32_vec(&mut self, tag: u16) -> Vec<i32>;
+    fn assert_tag_u64(&mut self, tag: u16) -> u64;
+    fn assert_tag_u64_vec(&mut self, tag: u16) -> Vec<u64>;
+    fn assert_tag_i64(&mut self, tag: u16) -> i64;
+    fn assert_tag_i64_vec(&mut self, tag: u16) -> Vec<i64>;
+}
+
+impl<R: std::io::Read + std::io::Seek> AssertDecode for Decoder<R> {
+    fn assert_tag_u32(&mut self, tag: u16) -> u32 {
+        self.get_tag(Tag::Unknown(tag)).unwrap().into_u32().unwrap()
+    }
+    fn assert_tag_u32_vec(&mut self, tag: u16) -> Vec<u32> {
+        self.get_tag(Tag::Unknown(tag))
+            .unwrap()
+            .into_u32_vec()
+            .unwrap()
+    }
+    fn assert_tag_i32(&mut self, tag: u16) -> i32 {
+        self.get_tag(Tag::Unknown(tag)).unwrap().into_i32().unwrap()
+    }
+    fn assert_tag_i32_vec(&mut self, tag: u16) -> Vec<i32> {
+        self.get_tag(Tag::Unknown(tag))
+            .unwrap()
+            .into_i32_vec()
+            .unwrap()
+    }
+    fn assert_tag_u64(&mut self, tag: u16) -> u64 {
+        self.get_tag(Tag::Unknown(tag)).unwrap().into_u64().unwrap()
+    }
+    fn assert_tag_u64_vec(&mut self, tag: u16) -> Vec<u64> {
+        self.get_tag(Tag::Unknown(tag))
+            .unwrap()
+            .into_u64_vec()
+            .unwrap()
+    }
+    fn assert_tag_i64(&mut self, tag: u16) -> i64 {
+        self.get_tag(Tag::Unknown(tag)).unwrap().into_i64().unwrap()
+    }
+    fn assert_tag_i64_vec(&mut self, tag: u16) -> Vec<i64> {
+        self.get_tag(Tag::Unknown(tag))
+            .unwrap()
+            .into_i64_vec()
+            .unwrap()
+    }
+}
+
+#[test]
+fn test_multiple_byte() {
+    let mut data = Cursor::new(Vec::new());
+
+    {
+        let mut tiff = TiffEncoder::new(&mut data).unwrap();
+        let mut image_encoder = tiff.new_image::<colortype::Gray8>(1, 1).unwrap();
+        image_encoder.write_strip(&[1]).unwrap();
+        let encoder = image_encoder.encoder();
+
+        encoder.write_tag(Tag::Unknown(65000), &[1_u8][..]).unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65001), &[1_u8, 2][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65002), &[1_u8, 2, 3][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65003), &[1_u8, 2, 3, 4][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65004), &[1_u8, 2, 3, 4, 5][..])
+            .unwrap();
+    }
+
+    data.set_position(0);
+    {
+        let mut decoder = Decoder::new(&mut data).unwrap();
+
+        assert_eq!(decoder.assert_tag_u32_vec(65000), [1]);
+        assert_eq!(decoder.assert_tag_u32_vec(65001), [1, 2]);
+        assert_eq!(decoder.assert_tag_u32_vec(65002), [1, 2, 3]);
+        assert_eq!(decoder.assert_tag_u32_vec(65003), [1, 2, 3, 4]);
+        assert_eq!(decoder.assert_tag_u32_vec(65004), [1, 2, 3, 4, 5]);
+    }
+}
+
+#[test]
+/// Test writing signed tags from TIFF 6.0
+fn test_signed() {
+    let mut data = Cursor::new(Vec::new());
+    fn make_srational(i: i32) -> SRational {
+        SRational { n: i, d: 100 }
+    }
+
+    {
+        let mut tiff = TiffEncoder::new(&mut data).unwrap();
+        let mut image_encoder = tiff.new_image::<colortype::Gray8>(1, 1).unwrap();
+        image_encoder.write_strip(&[1]).unwrap();
+        let encoder = image_encoder.encoder();
+
+        //Use the "reusable" tags section as per the TIFF6 spec
+        encoder.write_tag(Tag::Unknown(65000), -1_i8).unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65001), &[-1_i8][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65002), &[-1_i8, 2][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65003), &[-1_i8, 2, -3][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65004), &[-1_i8, 2, -3, 4][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65005), &[-1_i8, 2, -3, 4, -5][..])
+            .unwrap();
+
+        encoder.write_tag(Tag::Unknown(65010), -1_i16).unwrap();
+        encoder.write_tag(Tag::Unknown(65011), -1_i16).unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65012), &[-1_i16, 2][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65013), &[-1_i16, 2, -3][..])
+            .unwrap();
+
+        encoder.write_tag(Tag::Unknown(65020), -1_i32).unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65021), &[-1_i32][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65022), &[-1_i32, 2][..])
+            .unwrap();
+
+        encoder.write_tag(Tag::Unknown(65030), -1_i64).unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65031), &[-1_i64][..])
+            .unwrap();
+        encoder
+            .write_tag(Tag::Unknown(65032), &[-1_i64, 2][..])
+            .unwrap();
+
+        encoder
+            .write_tag(Tag::Unknown(65040), make_srational(-1))
+            .unwrap();
+        encoder
+            .write_tag(
+                Tag::Unknown(65041),
+                &[make_srational(-1), make_srational(2)][..],
+            )
+            .unwrap();
+    }
+
+    //Rewind the cursor for reading
+    data.set_position(0);
+    {
+        let mut decoder = Decoder::new(&mut data).unwrap();
+
+        assert_eq!(decoder.assert_tag_i32(65000), -1);
+        assert_eq!(decoder.assert_tag_i32_vec(65001), [-1]);
+        assert_eq!(decoder.assert_tag_i32_vec(65002), [-1, 2]);
+        assert_eq!(decoder.assert_tag_i32_vec(65003), [-1, 2, -3]);
+        assert_eq!(decoder.assert_tag_i32_vec(65004), [-1, 2, -3, 4]);
+        assert_eq!(decoder.assert_tag_i32_vec(65005), [-1, 2, -3, 4, -5],);
+
+        assert_eq!(decoder.assert_tag_i32(65010), -1);
+        assert_eq!(decoder.assert_tag_i32_vec(65011), [-1]);
+        assert_eq!(decoder.assert_tag_i32_vec(65012), [-1, 2]);
+        assert_eq!(decoder.assert_tag_i32_vec(65013), [-1, 2, -3]);
+
+        assert_eq!(decoder.assert_tag_i32(65020), -1);
+        assert_eq!(decoder.assert_tag_i32_vec(65021), [-1]);
+        assert_eq!(decoder.assert_tag_i32_vec(65022), [-1, 2]);
+
+        assert_eq!(decoder.assert_tag_i64(65030), -1);
+        assert_eq!(decoder.assert_tag_i64_vec(65031), [-1]);
+        assert_eq!(decoder.assert_tag_i64_vec(65032), [-1, 2]);
+
+        assert_eq!(decoder.assert_tag_i32_vec(65040), [-1, 100]);
+        assert_eq!(decoder.assert_tag_i32_vec(65041), [-1_i32, 100, 2, 100]);
+    }
+}
+
+#[test]
+/// check multipage image handling
+fn test_multipage_image() {
+    let mut img_file = Cursor::new(Vec::new());
+
+    {
+        // first create a multipage image with 2 images
+        let mut img_encoder = TiffEncoder::new(&mut img_file).unwrap();
+
+        // write first grayscale image (2x2 16-bit)
+        let img1: Vec<u16> = [1, 2, 3, 4].to_vec();
+        img_encoder
+            .write_image::<colortype::Gray16>(2, 2, &img1[..])
+            .unwrap();
+        // write second grayscale image (3x3 8-bit)
+        let img2: Vec<u8> = [9, 8, 7, 6, 5, 4, 3, 2, 1].to_vec();
+        img_encoder
+            .write_image::<colortype::Gray8>(3, 3, &img2[..])
+            .unwrap();
+    }
+
+    // seek to the beginning of the file, so that it can be decoded
+    img_file.seek(SeekFrom::Start(0)).unwrap();
+
+    {
+        let mut img_decoder = Decoder::new(&mut img_file).unwrap();
+
+        // check the dimensions of the image in the first page
+        assert_eq!(img_decoder.dimensions().unwrap(), (2, 2));
+        img_decoder.next_image().unwrap();
+        // check the dimensions of the image in the second page
+        assert_eq!(img_decoder.dimensions().unwrap(), (3, 3));
+    }
+}
+
+#[test]
+/// verify rows per strip setting
+fn test_rows_per_strip() {
+    let mut file = Cursor::new(Vec::new());
+    {
+        let mut img_encoder = TiffEncoder::new(&mut file).unwrap();
+
+        let mut image = img_encoder.new_image::<colortype::Gray8>(100, 100).unwrap();
+        assert_eq!(image.next_strip_sample_count(), 100 * 100);
+        image.rows_per_strip(2).unwrap();
+        assert_eq!(image.next_strip_sample_count(), 2 * 100);
+
+        let img2: Vec<u8> = vec![0; 2 * 100];
+        image.write_strip(&img2[..]).unwrap();
+        assert!(image.rows_per_strip(5).is_err());
+        for i in 1..50 {
+            let img2: Vec<u8> = vec![i; 2 * 100];
+            image.write_strip(&img2[..]).unwrap();
+        }
+        assert!(image.write_strip(&img2[..]).is_err());
+        image.finish().unwrap();
+    }
+
+    file.seek(SeekFrom::Start(0)).unwrap();
+    {
+        let mut decoder = Decoder::new(&mut file).unwrap();
+        assert_eq!(decoder.get_tag_u64(Tag::RowsPerStrip).unwrap(), 2);
+        assert_eq!(decoder.strip_count().unwrap(), 50);
+
+        for i in 0..50 {
+            let img2 = [i; 2 * 100];
+            match decoder.read_chunk(i as u32).unwrap() {
+                DecodingResult::U8(data) => assert_eq!(&img2[..], &data[..]),
+                other => panic!("Incorrect strip type {:?}", other),
+            }
+        }
+    }
+}

vendor/tiff/tests/encode_images_with_compression.rs

@@ -0,0 +1,157 @@
+extern crate tiff;
+
+use std::io::{Cursor, Seek, Write};
+use tiff::{
+    decoder::{Decoder, DecodingResult},
+    encoder::{
+        colortype::{self, ColorType},
+        compression::*,
+        TiffEncoder, TiffValue,
+    },
+};
+
+trait TestImage<const NUM_CHANNELS: usize>: From<Vec<<Self::Color as ColorType>::Inner>> {
+    const WIDTH: u32;
+    const HEIGHT: u32;
+    type Color: ColorType;
+
+    fn reference_data(&self) -> &[<Self::Color as ColorType>::Inner];
+    fn generate_pixel(x: u32, y: u32) -> [<Self::Color as ColorType>::Inner; NUM_CHANNELS];
+
+    fn compress<C: Compression, W: Write + Seek>(
+        &self,
+        encoder: &mut TiffEncoder<W>,
+        compression: C,
+    ) where
+        [<Self::Color as ColorType>::Inner]: TiffValue,
+    {
+        let image = encoder
+            .new_image_with_compression::<Self::Color, C>(Self::WIDTH, Self::HEIGHT, compression)
+            .unwrap();
+        image.write_data(self.reference_data()).unwrap();
+    }
+
+    fn generate() -> Self {
+        assert_eq!(
+            Self::Color::BITS_PER_SAMPLE.len(),
+            NUM_CHANNELS,
+            "Incompatible color type"
+        );
+
+        let mut data = Vec::with_capacity((Self::WIDTH * Self::HEIGHT) as usize * NUM_CHANNELS);
+        for x in 0..Self::WIDTH {
+            for y in 0..Self::HEIGHT {
+                data.extend(IntoIterator::into_iter(Self::generate_pixel(x, y)));
+            }
+        }
+        Self::from(data)
+    }
+}
+
+struct TestImageColor(Vec<u16>);
+
+impl From<Vec<u16>> for TestImageColor {
+    fn from(value: Vec<u16>) -> Self {
+        Self(value)
+    }
+}
+
+impl TestImage<3> for TestImageColor {
+    const WIDTH: u32 = 1;
+    const HEIGHT: u32 = 7;
+    type Color = colortype::RGB16;
+
+    fn reference_data(&self) -> &[u16] {
+        &self.0
+    }
+
+    fn generate_pixel(x: u32, y: u32) -> [<Self::Color as ColorType>::Inner; 3] {
+        let val = (x + y) % <Self::Color as ColorType>::Inner::MAX as u32;
+        [val as <Self::Color as ColorType>::Inner; 3]
+    }
+}
+
+struct TestImageGrayscale(Vec<u8>);
+
+impl From<Vec<u8>> for TestImageGrayscale {
+    fn from(value: Vec<u8>) -> Self {
+        Self(value)
+    }
+}
+
+impl TestImage<1> for TestImageGrayscale {
+    const WIDTH: u32 = 21;
+    const HEIGHT: u32 = 10;
+    type Color = colortype::Gray8;
+
+    fn reference_data(&self) -> &[u8] {
+        &self.0
+    }
+
+    fn generate_pixel(x: u32, y: u32) -> [<Self::Color as ColorType>::Inner; 1] {
+        let val = (x + y) % <Self::Color as ColorType>::Inner::MAX as u32;
+        [val as <Self::Color as ColorType>::Inner]
+    }
+}
+
+fn encode_decode_with_compression<C: Compression + Clone>(compression: C) {
+    let mut data = Cursor::new(Vec::new());
+
+    let image_rgb = TestImageColor::generate();
+    let image_grayscale = TestImageGrayscale::generate();
+
+    // Encode tiff with compression
+    {
+        // Create a multipage image with 2 images
+        let mut encoder = TiffEncoder::new(&mut data).unwrap();
+        image_rgb.compress(&mut encoder, compression.clone());
+        image_grayscale.compress(&mut encoder, compression);
+    }
+
+    // Decode tiff
+    data.set_position(0);
+    {
+        let mut decoder = Decoder::new(data).unwrap();
+
+        // Check the RGB image
+        assert_eq!(
+            match decoder.read_image() {
+                Ok(DecodingResult::U16(image_data)) => image_data,
+                unexpected => panic!("Descoding RGB failed: {:?}", unexpected),
+            },
+            image_rgb.reference_data()
+        );
+
+        // Check the grayscale image
+        decoder.next_image().unwrap();
+        assert_eq!(
+            match decoder.read_image() {
+                Ok(DecodingResult::U8(image_data)) => image_data,
+                unexpected => panic!("Decoding grayscale failed: {:?}", unexpected),
+            },
+            image_grayscale.reference_data()
+        );
+    }
+}
+
+#[test]
+fn encode_decode_without_compression() {
+    encode_decode_with_compression(Uncompressed::default());
+}
+
+#[test]
+fn encode_decode_with_lzw() {
+    encode_decode_with_compression(Lzw::default());
+}
+
+#[test]
+fn encode_decode_with_deflate() {
+    encode_decode_with_compression(Deflate::with_level(DeflateLevel::Fast));
+    encode_decode_with_compression(Deflate::with_level(DeflateLevel::Balanced));
+    encode_decode_with_compression(Deflate::with_level(DeflateLevel::Best));
+}
+
+#[test]
+fn encode_decode_with_packbits() {
+    encode_decode_with_compression(Packbits::default());
+}

vendor/tiff/tests/fuzz_tests.rs

@@ -0,0 +1,51 @@
+extern crate tiff;
+
+use tiff::decoder::Decoder;
+use tiff::TiffResult;
+
+use std::fs::File;
+
+fn test_directory<F: Fn(File) -> bool>(path: &str, f: F) {
+    for entry in std::fs::read_dir(path).unwrap() {
+        let file = File::open(entry.unwrap().path()).unwrap();
+        assert!(f(file));
+    }
+}
+
+fn decode_tiff(file: File) -> TiffResult<()> {
+    let mut decoder = Decoder::new(file)?;
+    decoder.read_image()?;
+    Ok(())
+}
+
+#[test]
+fn oor_panic() {
+    test_directory("./tests/fuzz_images/oor_panic", |file| {
+        let _ = decode_tiff(file);
+        true
+    });
+}
+
+#[test]
+fn oom_crash() {
+    test_directory("./tests/fuzz_images/oom_crash", |file| {
+        decode_tiff(file).is_err()
+    });
+}
+
+#[test]
+fn inf_loop() {
+    test_directory("./tests/fuzz_images/inf_loop", |file| {
+        let _ = decode_tiff(file);
+        true
+    });
+}
+
+// https://github.com/image-rs/image-tiff/issues/33
+#[test]
+fn divide_by_zero() {
+    test_directory("./tests/fuzz_images/divide_by_zero", |file| {
+        let _ = decode_tiff(file);
+        true
+    });
+}