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This commit is contained in:
Nick Fisher
2024-03-01 22:48:39 +08:00
parent 9295059885
commit 6c6bcfe7a4
30 changed files with 1432 additions and 1052 deletions
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lib/filament_controller_ffi.dart
+92 -32
View File
@@ -1,6 +1,7 @@
import 'dart:async';
import 'dart:ffi';
import 'dart:io';
import 'dart:typed_data';
import 'dart:ui' as ui;
import 'dart:developer' as dev;
import 'package:flutter/services.dart';
@@ -52,8 +53,9 @@ class FilamentControllerFFI extends FilamentController {
final hasViewer = ValueNotifier<bool>(false);
@override
Stream<FilamentEntity> get pickResult => _pickResultController.stream;
final _pickResultController = StreamController<FilamentEntity>.broadcast();
Stream<FilamentPickResult> get pickResult => _pickResultController.stream;
final _pickResultController =
StreamController<FilamentPickResult>.broadcast();
int? _resizingWidth;
int? _resizingHeight;
@@ -545,8 +547,82 @@ class FilamentControllerFFI extends FilamentController {
_lights.clear();
}
final _assetCache = <String, (Pointer<Void>, int)>{};
@override
Future<FilamentEntity> loadGlb(String path, {bool unlit = false}) async {
Future<FilamentEntity> loadGlbFromBuffer(String path,
{bool cache = false, int numInstances = 1}) async {
late (Pointer<Void>, int) data;
if (cache && _assetCache.containsKey(path)) {
data = _assetCache[path]!;
} else {
late ByteData asset;
if (path.startsWith("file://")) {
var raw = File(path.replaceAll("file://", "")).readAsBytesSync();
asset = raw.buffer.asByteData(raw.offsetInBytes);
} else {
asset = await rootBundle.load(path.replaceAll("asset://", ""));
}
var ptr = allocator<Char>(asset.lengthInBytes);
for (int i = 0; i < asset.lengthInBytes; i++) {
ptr[i] = asset.getUint8(i);
}
data = (ptr.cast<Void>(), asset.lengthInBytes);
}
var entity = load_glb_from_buffer_ffi(
_sceneManager!, data.$1, data.$2, numInstances);
if (!cache) {
allocator.free(data.$1);
} else {
_assetCache[path] = data;
}
if (entity == _FILAMENT_ASSET_ERROR) {
throw Exception("Failed to load GLB from path $path");
}
return entity;
}
@override
Future<FilamentEntity> createInstance(FilamentEntity entity) async {
var created = create_instance(_sceneManager!, entity);
if (created == _FILAMENT_ASSET_ERROR) {
throw Exception("Failed to create instance");
}
return created;
}
@override
Future<int> getInstanceCount(FilamentEntity entity) async {
return get_instance_count(_sceneManager!, entity);
}
@override
Future<List<FilamentEntity>> getInstances(FilamentEntity entity) async {
var count = await getInstanceCount(entity);
var out = allocator<Int32>(count);
get_instances(_sceneManager!, entity, out);
var instances = <FilamentEntity>[];
for (int i = 0; i < count; i++) {
instances.add(out[i]);
}
allocator.free(out);
return instances;
}
@override
Future evictCache() async {
for (final value in _assetCache.values) {
allocator.free(value.$1);
}
_assetCache.clear();
}
@override
Future<FilamentEntity> loadGlb(String path,
{bool unlit = false, int numInstances = 1}) async {
if (_viewer == null) {
throw Exception("No viewer available, ignoring");
}
@@ -554,7 +630,7 @@ class FilamentControllerFFI extends FilamentController {
throw Exception("Not yet implemented");
}
final pathPtr = path.toNativeUtf8().cast<Char>();
var entity = load_glb_ffi(_sceneManager!, pathPtr, unlit);
var entity = load_glb_ffi(_sceneManager!, pathPtr, numInstances);
allocator.free(pathPtr);
if (entity == _FILAMENT_ASSET_ERROR) {
throw Exception("An error occurred loading the asset at $path");
@@ -910,6 +986,10 @@ class FilamentControllerFFI extends FilamentController {
set_main_camera(_viewer!);
}
Future<FilamentEntity> getMainCamera() async {
return get_main_camera(_viewer!);
}
@override
Future setCamera(FilamentEntity entity, String? name) async {
if (_viewer == null) {
@@ -1027,11 +1107,12 @@ class FilamentControllerFFI extends FilamentController {
}
@override
Future setCameraRotation(double rads, double x, double y, double z) async {
Future setCameraRotation(Quaternion quaternion) async {
if (_viewer == null) {
throw Exception("No viewer available, ignoring");
}
set_camera_rotation(_viewer!, rads, x, y, z);
set_camera_rotation(
_viewer!, quaternion.w, quaternion.x, quaternion.y, quaternion.z);
}
@override
@@ -1158,13 +1239,13 @@ class FilamentControllerFFI extends FilamentController {
}
@override
Future reveal(FilamentEntity entity, String meshName) async {
Future reveal(FilamentEntity entity, String? meshName) async {
if (_viewer == null) {
throw Exception("No viewer available, ignoring");
}
final meshNamePtr = meshName.toNativeUtf8().cast<Char>();
final result = reveal_mesh(_sceneManager!, entity, meshNamePtr) != 1;
final meshNamePtr = meshName?.toNativeUtf8().cast<Char>() ?? nullptr;
final result = reveal_mesh(_sceneManager!, entity, meshNamePtr) == 1;
allocator.free(meshNamePtr);
if (!result) {
throw Exception("Failed to reveal mesh $meshName");
@@ -1199,7 +1280,8 @@ class FilamentControllerFFI extends FilamentController {
}
}
var entityId = outPtr.value;
_pickResultController.add(entityId);
_pickResultController
.add((entity: entityId, x: x.toDouble(), y: y.toDouble()));
allocator.free(outPtr);
}
@@ -1331,28 +1413,6 @@ class FilamentControllerFFI extends FilamentController {
return frustum;
}
@override
Future setBoneTransform(FilamentEntity entity, String meshName,
String boneName, Matrix4 data) async {
var ptr = allocator<Float>(16);
for (int i = 0; i < 16; i++) {
ptr.elementAt(i).value = data.storage[i];
}
var meshNamePtr = meshName.toNativeUtf8(allocator: allocator).cast<Char>();
var boneNamePtr = boneName.toNativeUtf8(allocator: allocator).cast<Char>();
var result = set_bone_transform_ffi(
_sceneManager!, entity, meshNamePtr, ptr, boneNamePtr);
allocator.free(ptr);
allocator.free(meshNamePtr);
allocator.free(boneNamePtr);
if (!result) {
throw Exception("Failed to set bone transform. See logs for details");
}
}
@override
Future<FilamentEntity> getChildEntity(
FilamentEntity parent, String childName) async {