I have updated the flutter_gl package from 0.0.3 to 0.0.5 and I notice an issue
I have a code that sets the colors with buffer data but the lib complains about adding one more parameter in gl.bufferData.
Code to reproduce
This is the code that worked before the update.
setColors(gl) {
Float32List data = Float32List.fromList([
Random().nextDouble(), Random().nextDouble(), Random().nextDouble(), 1, //
Random().nextDouble(), Random().nextDouble(), Random().nextDouble(), 1, //
Random().nextDouble(), Random().nextDouble(), Random().nextDouble(), 1, //
Random().nextDouble(), Random().nextDouble(), Random().nextDouble(), 1, //
Random().nextDouble(), Random().nextDouble(), Random().nextDouble(), 1, //
Random().nextDouble(), Random().nextDouble(), Random().nextDouble(), 1, //
]);
gl.bufferData(gl.ARRAY_BUFFER, data, gl.STATIC_DRAW);
}
and I get this error
OpenGLContextWeb
{gl: [object WebGL2RenderingContext]}
Error: NoSuchMethodError: 'bufferData'
Dynamic call with too few arguments. Expected: 4 Actual: 3
In your example, ExampleDemoTest.dart I saw that you provide 4 arguments
var vertices = new Float32List.fromList([
0.0, 0.5, 0.0, // Vertice #1
-0.5, -0.5, 0.0, // Vertice #2
0.5, -0.5, 0.0 // Vertice #3
]);
final verticesPtr = calloc<Float>(vertices.length);
verticesPtr.asTypedList(vertices.length).setAll(0, vertices);
gl.bufferData(gl.ARRAY_BUFFER, vertices.length * Float32List.bytesPerElement, verticesPtr, gl.STATIC_DRAW);
What do you think we need to provide the size parameter? or it will be better to have it like it was before with only 3 params
now you have this method
bufferData(int target, int size, data, int usage) {
gl.glBufferData(target, size, data.cast<Void>(), usage);
}
after the change
bufferData(int target, data, int usage) {
late Pointer<Void> nativeData;
late int size;
if (data is List<double> || data is Float32List) {
nativeData = floatListToArrayPointer(data as List<double>).cast();
size = data.length * sizeOf<Float>();
} else if (data is Int32List) {
nativeData = int32ListToArrayPointer(data).cast();
size = data.length * sizeOf<Int32>();
} else if (data is Uint16List) {
nativeData = uInt16ListToArrayPointer(data).cast();
size = data.length * sizeOf<Uint16>();
} else if (data is Uint32List) {
nativeData = uInt32ListToArrayPointer(data).cast();
size = data.length * sizeOf<Uint32>();
} else {
throw ('bufferData: unsupported native type ${data.runtimeType}');
}
gl.glBufferData(target, size, nativeData, usage);
calloc.free(nativeData);
}
I think is better for the user to provide the Float32List and handle all the native code inside the OpenGLContextES.dart file as you did before.
Also notice by importing the dart:ffi package breaks the web version of the app.
and I get all these errors.
flutter run
Multiple devices found:
Chrome (web) • chrome • web-javascript • Google Chrome 93.0.4577.82
Edge (web) • edge • web-javascript • Microsoft Edge 93.0.961.52
[1]: Chrome (chrome)
[2]: Edge (edge)
Please choose one (To quit, press "q/Q"): 1
Launching lib\main.dart on Chrome in debug mode...
lib/engine.dart:6:8: Error: Not found: 'dart:ffi'
import 'dart:ffi';
^
/G:/Programs/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-1.1.2/lib/src/allocation.dart:5:8: Error: Not found: 'dart:ffi'
import 'dart:ffi';
^
/G:/Programs/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-1.1.2/lib/src/arena.dart:8:8: Error: Not found: 'dart:ffi'
import 'dart:ffi';
^
/G:/Programs/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-1.1.2/lib/src/utf8.dart:6:8: Error: Not found: 'dart:ffi'
import 'dart:ffi';
^
/G:/Programs/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-1.1.2/lib/src/utf16.dart:5:8: Error: Not found: 'dart:ffi'
import 'dart:ffi';
^
/G:/Programs/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-1.1.2/lib/src/allocation.dart:9:7: Error: Type 'DynamicLibrary' not found.
final DynamicLibrary stdlib = Platform.isWindows
also when try to run the app into an android device I get this errors
flutter run
Launching lib\main.dart on Lenovo TB J606F in debug mode...
FAILURE: Build failed with an exception.
Execution failed for task ':app:checkDebugAarMetadata'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find :threeegl:.
Searched in the following locations:
Required by:
project :app > project :flutter_gl
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 4s
Thanks
3
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