Comments (4)
lesnitsky
commented on July 22, 2024
2
@yjbanov attached archive has vanilla webgl example with the same image rendered just fine.
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yjbanov
commented on July 22, 2024
1
Consider filing an issue in Chromium bug tracker. Flutter Web uses ImageDecoder API to decode images.
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darshankawar
commented on July 22, 2024
Thanks for the report. I was able to replicate this on latest stable and master version only with canvaskit. With html renderer, it shows the image properly and also on desktop platform. I tried to verify if this is a regression by running the code on 3.19.6, but it was stuck at:
Launching lib/main.dart on Chrome in debug mode...
Waiting for connection from debug service on Chrome... 15.8s
So I am not sure if this has regressed in latest version or not.
stable, master flutter doctor -v
[!] Flutter (Channel stable, 3.22.2, on macOS 12.2.1 21D62 darwin-x64, locale
en-GB)
• Flutter version 3.22.2 on channel stable at
/Users/dhs/documents/fluttersdk/flutter
! Warning: `flutter` on your path resolves to
/Users/dhs/Documents/Fluttersdk/flutter/bin/flutter, which is not inside
your current Flutter SDK checkout at
/Users/dhs/documents/fluttersdk/flutter. Consider adding
/Users/dhs/documents/fluttersdk/flutter/bin to the front of your path.
! Warning: `dart` on your path resolves to
/Users/dhs/Documents/Fluttersdk/flutter/bin/dart, which is not inside your
current Flutter SDK checkout at /Users/dhs/documents/fluttersdk/flutter.
Consider adding /Users/dhs/documents/fluttersdk/flutter/bin to the front
of your path.
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 761747bfc5 (33 hours ago), 2024-06-05 22:15:13 +0200
• Engine revision edd8546116
• Dart version 3.4.3
• DevTools version 2.34.3
• If those were intentional, you can disregard the above warnings; however
it is recommended to use "git" directly to perform update checks and
upgrades.
[!] Xcode - develop for iOS and macOS (Xcode 12.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
! Flutter recommends a minimum Xcode version of 13.
Download the latest version or update via the Mac App Store.
• CocoaPods version 1.11.2
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] VS Code (version 1.62.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.21.0
[✓] Connected device (5 available)
• SM G975F (mobile) • RZ8M802WY0X • android-arm64 • Android 11 (API 30)
• Darshan's iphone (mobile) • 21150b119064aecc249dfcfe05e259197461ce23 •
ios • iOS 14.4.1 18D61
• iPhone 12 Pro Max (mobile) • A5473606-0213-4FD8-BA16-553433949729 •
ios • com.apple.CoreSimulator.SimRuntime.iOS-14-3 (simulator)
• macOS (desktop) • macos •
darwin-x64 • Mac OS X 10.15.4 19E2269 darwin-x64
• Chrome (web) • chrome •
web-javascript • Google Chrome 98.0.4758.80
[✓] HTTP Host Availability
• All required HTTP hosts are available
! Doctor found issues in 1 category.
[!] Flutter (Channel master, 3.23.0-13.0.pre.212, on macOS 12.2.1 21D62
darwin-x64, locale en-GB)
• Flutter version 3.23.0-13.0.pre.212 on channel master at
/Users/dhs/documents/fluttersdk/flutter
! Warning: `flutter` on your path resolves to
/Users/dhs/Documents/Fluttersdk/flutter/bin/flutter, which is not inside
your current Flutter SDK checkout at
/Users/dhs/documents/fluttersdk/flutter. Consider adding
/Users/dhs/documents/fluttersdk/flutter/bin to the front of your path.
! Warning: `dart` on your path resolves to
/Users/dhs/Documents/Fluttersdk/flutter/bin/dart, which is not inside your
current Flutter SDK checkout at /Users/dhs/documents/fluttersdk/flutter.
Consider adding /Users/dhs/documents/fluttersdk/flutter/bin to the front
of your path.
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 7b6d667701 (7 hours ago), 2024-06-12 19:34:52 -0400
• Engine revision c7fcbfce60
• Dart version 3.5.0 (build 3.5.0-250.0.dev)
• DevTools version 2.36.0
• If those were intentional, you can disregard the above warnings; however
it is recommended to use "git" directly to perform update checks and
upgrades.
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at /Users/dhs/Library/Android/sdk
✗ cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
✗ Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/macos#android-setup for
more details.
[✓] Xcode - develop for iOS and macOS (Xcode 13.2.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 13C100
• CocoaPods version 1.11.2
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] IntelliJ IDEA Ultimate Edition (version 2021.3.2)
• IntelliJ at /Applications/IntelliJ IDEA.app
• Flutter plugin version 65.1.4
• Dart plugin version 213.7228
[✓] VS Code (version 1.62.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.29.0
[✓] Connected device (3 available)
• Darshan's iphone (mobile) • 21150b119064aecc249dfcfe05e259197461ce23 • ios
• iOS 15.3.1 19D52
• macOS (desktop) • macos •
darwin-x64 • macOS 12.2.1 21D62 darwin-x64
• Chrome (web) • chrome •
web-javascript • Google Chrome 109.0.5414.119
[✓] Network resources
• All expected network resources are available.
! Doctor found issues in 1 category.
[!] Xcode - develop for iOS and macOS (Xcode 12.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
! Flutter recommends a minimum Xcode version of 13.
Download the latest version or update via the Mac App Store.
• CocoaPods version 1.11.2
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] VS Code (version 1.62.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.21.0
[✓] Connected device (5 available)
• SM G975F (mobile) • RZ8M802WY0X • android-arm64 • Android 11 (API 30)
• Darshan's iphone (mobile) • 21150b119064aecc249dfcfe05e259197461ce23 •
ios • iOS 14.4.1 18D61
• iPhone 12 Pro Max (mobile) • A5473606-0213-4FD8-BA16-553433949729 •
ios • com.apple.CoreSimulator.SimRuntime.iOS-14-3 (simulator)
• macOS (desktop) • macos •
darwin-x64 • Mac OS X 10.15.4 19E2269 darwin-x64
• Chrome (web) • chrome •
web-javascript • Google Chrome 98.0.4758.80
[✓] HTTP Host Availability
• All required HTTP hosts are available
! Doctor found issues in 1 category.
/cc @yjbanov
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AndreiMisiukevich
commented on July 22, 2024
@darshankawar, thanks for the quick response.
The image renders correctly if we remove EXIF beforehand.
For instance, using the function below.
import 'package:image/image.dart' as img;
Future<Uint8List> stripExif(Uint8List originalBytes) async {
var image = img.decodeJpg(originalBytes);
image = img.bakeOrientation(image!);
final bytesWithExif = img.encodeJpg(image);
const int app1 = 0xFFE1; // segment of EXIF data
final strippedImage = <int>[];
int i = 0;
int end;
while (i < bytesWithExif.length) {
// segment length is encoded on bytes 2 and 3 of the segment
int segmentLength = (bytesWithExif[i + 2] << 8) + bytesWithExif[i + 3];
if (bytesWithExif[i] == 0xFF && bytesWithExif[i + 1] == app1) {
// Skip APP1 segment
i += 2 + segmentLength;
} else {
// Add segment to new image
end = min(i + 2 + segmentLength, bytesWithExif.length);
strippedImage.addAll(bytesWithExif.sublist(i, end));
i += 2 + segmentLength;
}
}
return Uint8List.fromList(strippedImage);
}from flutter.
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