38 lines
1.2 KiB
Dart
38 lines
1.2 KiB
Dart
import 'dart:ffi';
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class RenderingSurface {
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final int flutterTextureId;
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final Pointer<Void> surface;
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final int textureHandle;
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final int sharedContext;
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factory RenderingSurface.from(dynamic platformMessage) {
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var flutterTextureId = platformMessage[0];
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// void* on iOS (pointer to pixel buffer), Android (pointer to native window), null on macOS/Windows
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var surfaceAddress = platformMessage[1] as int? ?? 0;
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// null on iOS/Android, void* on MacOS (pointer to metal texture), GLuid on Windows/Linux
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var nativeTexture = platformMessage[2] as int? ?? 0;
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if(nativeTexture != 0) {
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assert(surfaceAddress == 0);
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}
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var sharedContext = platformMessage[3] as int? ?? 0;
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print(
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"Using flutterTextureId $flutterTextureId, surface $surfaceAddress nativeTexture $nativeTexture and sharedContext $sharedContext");
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return RenderingSurface(
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sharedContext: sharedContext,
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flutterTextureId: flutterTextureId,
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surface: Pointer<Void>.fromAddress(surfaceAddress),
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textureHandle: nativeTexture);
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}
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RenderingSurface({required this.sharedContext,
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required this.flutterTextureId,
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required this.surface,
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required this.textureHandle});
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}
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