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opt: reduce copy and malloc times for both of flutter and rust

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Kingtous
2023-02-12 01:52:11 +08:00
parent f521b1665a
commit 01d30bce9e
7 changed files with 105 additions and 38 deletions
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26
flutter/lib/models/native_model.dart
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@@ -23,7 +23,10 @@ class RgbaFrame extends Struct {
}
typedef F2 = Pointer<Utf8> Function(Pointer<Utf8>, Pointer<Utf8>);
typedef F3 = void Function(Pointer<Utf8>, Pointer<Utf8>);
typedef F3 = Void Function(Pointer<Utf8>, Pointer<Uint8>);
typedef F3Dart = void Function(Pointer<Utf8>, Pointer<Uint8>);
typedef F4 = Uint64 Function(Pointer<Utf8>);
typedef F4Dart = int Function(Pointer<Utf8>);
typedef HandleEvent = Future<void> Function(Map<String, dynamic> evt);
/// FFI wrapper around the native Rust core.
@@ -44,6 +47,8 @@ class PlatformFFI {
final _toAndroidChannel = const MethodChannel('mChannel');
RustdeskImpl get ffiBind => _ffiBind;
F3Dart? _session_get_rgba;
F4Dart? _session_get_rgba_size;
static get localeName => Platform.localeName;
@@ -92,6 +97,23 @@ class PlatformFFI {
return res;
}
Uint8List? getRgba(String id, Pointer<Uint8> buffer, int bufSize) {
if (_session_get_rgba == null) return null;
var a = id.toNativeUtf8();
_session_get_rgba!(a, buffer);
final data = buffer.asTypedList(bufSize);
malloc.free(a);
return data;
}
int? getRgbaSize(String id) {
if (_session_get_rgba_size == null) return null;
var a = id.toNativeUtf8();
final bufferSize = _session_get_rgba_size!(a);
malloc.free(a);
return bufferSize;
}
/// Init the FFI class, loads the native Rust core library.
Future<void> init(String appType) async {
_appType = appType;
@@ -107,6 +129,8 @@ class PlatformFFI {
debugPrint('initializing FFI $_appType');
try {
_translate = dylib.lookupFunction<F2, F2>('translate');
_session_get_rgba = dylib.lookupFunction<F3, F3Dart>("session_get_rgba");
_session_get_rgba_size = dylib.lookupFunction<F4, F4Dart>("session_get_rgba_size");
try {
// SYSTEM user failed
_dir = (await getApplicationDocumentsDirectory()).path;