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Diffstat (limited to 'vendor/qoi/tests/test_chunks.rs')
| -rw-r--r-- | vendor/qoi/tests/test_chunks.rs | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/vendor/qoi/tests/test_chunks.rs b/vendor/qoi/tests/test_chunks.rs deleted file mode 100644 index d465140..0000000 --- a/vendor/qoi/tests/test_chunks.rs +++ /dev/null @@ -1,211 +0,0 @@ -mod common; - -use bytemuck::{cast_slice, Pod}; - -use qoi::consts::{ - QOI_HEADER_SIZE, QOI_OP_DIFF, QOI_OP_INDEX, QOI_OP_LUMA, QOI_OP_RGB, QOI_OP_RGBA, QOI_OP_RUN, - QOI_PADDING_SIZE, -}; -use qoi::{decode_to_vec, encode_to_vec}; - -use self::common::hash; - -fn test_chunk<P, E, const N: usize>(pixels: P, expected: E) -where - P: AsRef<[[u8; N]]>, - E: AsRef<[u8]>, - [u8; N]: Pod, -{ - let pixels = pixels.as_ref(); - let expected = expected.as_ref(); - let pixels_raw = cast_slice::<_, u8>(pixels); - let encoded = encode_to_vec(pixels_raw, pixels.len() as _, 1).unwrap(); - let decoded = decode_to_vec(&encoded).unwrap().1; - assert_eq!(pixels_raw, decoded.as_slice(), "roundtrip failed (encoded={:?}))", encoded); - assert!(encoded.len() >= expected.len() + QOI_HEADER_SIZE + QOI_PADDING_SIZE); - assert_eq!(&encoded[QOI_HEADER_SIZE..][..expected.len()], expected); -} - -#[test] -fn test_encode_rgb_3ch() { - test_chunk([[11, 121, 231]], [QOI_OP_RGB, 11, 121, 231]); -} - -#[test] -fn test_encode_rgb_4ch() { - test_chunk([[11, 121, 231, 0xff]], [QOI_OP_RGB, 11, 121, 231]); -} - -#[test] -fn test_encode_rgba() { - test_chunk([[11, 121, 231, 55]], [QOI_OP_RGBA, 11, 121, 231, 55]); -} - -#[test] -fn test_encode_run_start_len1to62_3ch() { - for n in 1..=62 { - let mut v = vec![[0, 0, 0]; n]; - v.push([11, 22, 33]); - test_chunk(v, [QOI_OP_RUN | (n as u8 - 1), QOI_OP_RGB]); - } -} - -#[test] -fn test_encode_run_start_len1to62_4ch() { - for n in 1..=62 { - let mut v = vec![[0, 0, 0, 0xff]; n]; - v.push([11, 22, 33, 44]); - test_chunk(v, [QOI_OP_RUN | (n as u8 - 1), QOI_OP_RGBA]); - } -} - -#[test] -fn test_encode_run_start_63to124_3ch() { - for n in 63..=124 { - let mut v = vec![[0, 0, 0]; n]; - v.push([11, 22, 33]); - test_chunk(v, [QOI_OP_RUN | 61, QOI_OP_RUN | (n as u8 - 63), QOI_OP_RGB]); - } -} - -#[test] -fn test_encode_run_start_len63to124_4ch() { - for n in 63..=124 { - let mut v = vec![[0, 0, 0, 0xff]; n]; - v.push([11, 22, 33, 44]); - test_chunk(v, [QOI_OP_RUN | 61, QOI_OP_RUN | (n as u8 - 63), QOI_OP_RGBA]); - } -} - -#[test] -fn test_encode_run_end_3ch() { - let px = [11, 33, 55]; - test_chunk( - [[1, 99, 2], px, px, px], - [QOI_OP_RGB, 1, 99, 2, QOI_OP_RGB, px[0], px[1], px[2], QOI_OP_RUN | 1], - ); -} - -#[test] -fn test_encode_run_end_4ch() { - let px = [11, 33, 55, 77]; - test_chunk( - [[1, 99, 2, 3], px, px, px], - [QOI_OP_RGBA, 1, 99, 2, 3, QOI_OP_RGBA, px[0], px[1], px[2], px[3], QOI_OP_RUN | 1], - ); -} - -#[test] -fn test_encode_run_mid_3ch() { - let px = [11, 33, 55]; - test_chunk( - [[1, 99, 2], px, px, px, [1, 2, 3]], - [QOI_OP_RGB, 1, 99, 2, QOI_OP_RGB, px[0], px[1], px[2], QOI_OP_RUN | 1], - ); -} - -#[test] -fn test_encode_run_mid_4ch() { - let px = [11, 33, 55, 77]; - test_chunk( - [[1, 99, 2, 3], px, px, px, [1, 2, 3, 4]], - [QOI_OP_RGBA, 1, 99, 2, 3, QOI_OP_RGBA, px[0], px[1], px[2], px[3], QOI_OP_RUN | 1], - ); -} - -#[test] -fn test_encode_index_3ch() { - let px = [101, 102, 103]; - test_chunk( - [px, [1, 2, 3], px], - [QOI_OP_RGB, 101, 102, 103, QOI_OP_RGB, 1, 2, 3, QOI_OP_INDEX | hash(px)], - ); -} - -#[test] -fn test_encode_index_4ch() { - let px = [101, 102, 103, 104]; - test_chunk( - [px, [1, 2, 3, 4], px], - [QOI_OP_RGBA, 101, 102, 103, 104, QOI_OP_RGBA, 1, 2, 3, 4, QOI_OP_INDEX | hash(px)], - ); -} - -#[test] -fn test_encode_index_zero_3ch() { - let px = [0, 0, 0]; - test_chunk([[101, 102, 103], px], [QOI_OP_RGB, 101, 102, 103, QOI_OP_RGB, 0, 0, 0]); -} - -#[test] -fn test_encode_index_zero_0x00_4ch() { - let px = [0, 0, 0, 0]; - test_chunk( - [[101, 102, 103, 104], px], - [QOI_OP_RGBA, 101, 102, 103, 104, QOI_OP_INDEX | hash(px)], - ); -} - -#[test] -fn test_encode_index_zero_0xff_4ch() { - let px = [0, 0, 0, 0xff]; - test_chunk( - [[101, 102, 103, 104], px], - [QOI_OP_RGBA, 101, 102, 103, 104, QOI_OP_RGBA, 0, 0, 0, 0xff], - ); -} - -#[test] -fn test_encode_diff() { - for x in 0..8_u8 { - let x = [x.wrapping_sub(5), x.wrapping_sub(4), x.wrapping_sub(3)]; - for dr in 0..3 { - for dg in 0..3 { - for db in 0..3 { - if dr != 2 || dg != 2 || db != 2 { - let r = x[0].wrapping_add(dr).wrapping_sub(2); - let g = x[1].wrapping_add(dg).wrapping_sub(2); - let b = x[2].wrapping_add(db).wrapping_sub(2); - let d = QOI_OP_DIFF | dr << 4 | dg << 2 | db; - test_chunk( - [[1, 99, 2], x, [r, g, b]], - [QOI_OP_RGB, 1, 99, 2, QOI_OP_RGB, x[0], x[1], x[2], d], - ); - test_chunk( - [[1, 99, 2, 0xff], [x[0], x[1], x[2], 9], [r, g, b, 9]], - [QOI_OP_RGB, 1, 99, 2, QOI_OP_RGBA, x[0], x[1], x[2], 9, d], - ); - } - } - } - } - } -} - -#[test] -fn test_encode_luma() { - for x in (0..200_u8).step_by(4) { - let x = [x.wrapping_mul(3), x.wrapping_sub(5), x.wrapping_sub(7)]; - for dr_g in (0..16).step_by(4) { - for dg in (0..64).step_by(8) { - for db_g in (0..16).step_by(4) { - if dr_g != 8 || dg != 32 || db_g != 8 { - let r = x[0].wrapping_add(dr_g).wrapping_add(dg).wrapping_sub(40); - let g = x[1].wrapping_add(dg).wrapping_sub(32); - let b = x[2].wrapping_add(db_g).wrapping_add(dg).wrapping_sub(40); - let d1 = QOI_OP_LUMA | dg; - let d2 = (dr_g << 4) | db_g; - test_chunk( - [[1, 99, 2], x, [r, g, b]], - [QOI_OP_RGB, 1, 99, 2, QOI_OP_RGB, x[0], x[1], x[2], d1, d2], - ); - test_chunk( - [[1, 99, 2, 0xff], [x[0], x[1], x[2], 9], [r, g, b, 9]], - [QOI_OP_RGB, 1, 99, 2, QOI_OP_RGBA, x[0], x[1], x[2], 9, d1, d2], - ); - } - } - } - } - } -} |