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Add Decoder::open, deprecate new

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This commit is contained in:
A. Molzer committed 2026-03-06 09:31:23 +01:00
1 parent be9b3a04b9
commit bf79af8de4
16 files changed
+176 -108
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tests/decode_fp16_images.rs
+20 -5
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@@ -16,7 +16,9 @@ fn test_white_ieee_fp16() {
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 mut decoder = Decoder::open(img_file).expect("Cannot create decoder");
decoder.next_image().expect("Cannot read image");
assert_eq!(
decoder.dimensions().expect("Cannot get dimensions"),
(256, 256)
@@ -25,6 +27,7 @@ fn test_white_ieee_fp16() {
decoder.colortype().expect("Cannot get colortype"),
ColorType::Gray(16)
);
if let DecodingResult::F16(img) = decoder.read_image().unwrap() {
for p in img {
assert!(p == half::f16::from_f32_const(1.0));
@@ -43,7 +46,9 @@ fn test_one_black_pixel_ieee_fp16() {
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 mut decoder = Decoder::open(img_file).expect("Cannot create decoder");
decoder.next_image().expect("Cannot read image");
assert_eq!(
decoder.dimensions().expect("Cannot get dimensions"),
(256, 256)
@@ -52,6 +57,7 @@ fn test_one_black_pixel_ieee_fp16() {
decoder.colortype().expect("Cannot get colortype"),
ColorType::Gray(16)
);
if let DecodingResult::F16(img) = decoder.read_image().unwrap() {
for (i, p) in img.iter().enumerate() {
if i == 0 {
@@ -74,7 +80,9 @@ fn test_pattern_horizontal_differencing_ieee_fp16() {
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 mut decoder = Decoder::open(img_file).expect("Cannot create decoder");
decoder.next_image().expect("Cannot read image");
assert_eq!(
decoder.dimensions().expect("Cannot get dimensions"),
(256, 256)
@@ -83,6 +91,7 @@ fn test_pattern_horizontal_differencing_ieee_fp16() {
decoder.colortype().expect("Cannot get colortype"),
ColorType::Gray(16)
);
if let DecodingResult::F16(img) = decoder.read_image().unwrap() {
// 0, 2, 5, 8, 12, 16, 255 are black
let black = [0, 2, 5, 8, 12, 16, 255];
@@ -107,7 +116,9 @@ fn test_pattern_predictor_ieee_fp16() {
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 mut decoder = Decoder::open(img_file).expect("Cannot create decoder");
decoder.next_image().expect("Cannot read image");
assert_eq!(
decoder.dimensions().expect("Cannot get dimensions"),
(256, 256)
@@ -116,6 +127,7 @@ fn test_pattern_predictor_ieee_fp16() {
decoder.colortype().expect("Cannot get colortype"),
ColorType::Gray(16)
);
if let DecodingResult::F16(img) = decoder.read_image().unwrap() {
// 0, 2, 5, 8, 12, 16, 255 are black
let black = [0, 2, 5, 8, 12, 16, 255];
@@ -175,7 +187,9 @@ fn test_predictor_ieee_fp16() {
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 mut decoder = Decoder::open(img_file).expect("Cannot create decoder");
decoder.next_image().expect("Cannot read image");
assert_eq!(
decoder.dimensions().expect("Cannot get dimensions"),
(16, 16)
@@ -184,6 +198,7 @@ fn test_predictor_ieee_fp16() {
decoder.colortype().expect("Cannot get colortype"),
ColorType::Gray(16)
);
if let DecodingResult::F16(img) = decoder.read_image().unwrap() {
for (exp, found) in std::iter::zip(pnm_values.iter(), img.iter()) {
assert!((exp - found.to_f32()).abs() < 0.0001);