move flutter_filament plugin to federated structure
This commit is contained in:
Nick Fisher
@@ -0,0 +1,48 @@
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import Foundation
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import GLKit
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import Flutter
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public class FlutterFilamentTexture : NSObject, FlutterTexture {
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public var pixelBuffer: CVPixelBuffer?
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var pixelBufferAttrs = [
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kCVPixelBufferPixelFormatTypeKey: NSNumber(value: kCVPixelFormatType_32BGRA),
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kCVPixelBufferOpenGLCompatibilityKey: kCFBooleanTrue,
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kCVPixelBufferOpenGLESCompatibilityKey: kCFBooleanTrue,
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kCVPixelBufferIOSurfacePropertiesKey: [:]
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] as CFDictionary
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var flutterTextureId: Int64 = -1
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var registry: FlutterTextureRegistry?
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init(width:Int64, height:Int64, registry:FlutterTextureRegistry) {
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self.registry = registry
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super.init()
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if(CVPixelBufferCreate(kCFAllocatorDefault, Int(width), Int(height),
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kCVPixelFormatType_32BGRA, pixelBufferAttrs, &pixelBuffer) != kCVReturnSuccess) {
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print("Error allocating pixel buffer")
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} else {
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self.flutterTextureId = registry.register(self)
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}
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}
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public func copyPixelBuffer() -> Unmanaged<CVPixelBuffer>? {
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return Unmanaged.passRetained(pixelBuffer!);
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}
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public func onTextureUnregistered(_ texture:FlutterTexture) {
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print("Texture unregistered")
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}
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public func destroy() {
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if(self.flutterTextureId != -1) {
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self.registry!.unregisterTexture(self.flutterTextureId)
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}
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self.pixelBuffer = nil
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}
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}
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@@ -0,0 +1,10 @@
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#include "ResourceBuffer.h"
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ResourceLoaderWrapper *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner)
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{
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ResourceLoaderWrapper *rlw = (ResourceLoaderWrapper *)malloc(sizeof(ResourceLoaderWrapper));
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rlw->loadFromOwner = loadFn;
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rlw->freeFromOwner = freeFn;
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rlw->owner = owner;
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return rlw;
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}
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@@ -0,0 +1,175 @@
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import Flutter
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import UIKit
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import GLKit
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public class SwiftFlutterFilamentPlugin: NSObject, FlutterPlugin {
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var registrar : FlutterPluginRegistrar
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var registry: FlutterTextureRegistry
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var texture: FlutterFilamentTexture?
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var createdAt = Date()
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var resources:NSMutableDictionary = [:]
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static var messenger : FlutterBinaryMessenger? = nil;
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var loadResource : @convention(c) (UnsafePointer<Int8>?, UnsafeMutableRawPointer?) -> ResourceBuffer = { uri, resourcesPtr in
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let instance:SwiftFlutterFilamentPlugin = Unmanaged<SwiftFlutterFilamentPlugin>.fromOpaque(resourcesPtr!).takeUnretainedValue()
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let uriString = String(cString:uri!)
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var path:String? = nil
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// check for hot-reloaded asset
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var found : URL? = nil
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if(uriString.hasPrefix("asset://")) {
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let assetPath = String(uriString.dropFirst(8))
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print("Searching for hot reloaded asset under path : \(assetPath)")
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let appFolder = Bundle.main.resourceURL
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let dirPaths = NSSearchPathForDirectoriesInDomains(.applicationDirectory,
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.userDomainMask, true)
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let supportDirPaths = NSSearchPathForDirectoriesInDomains(.applicationSupportDirectory,
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.userDomainMask, true)
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let devFsPath = URL(fileURLWithPath: supportDirPaths.first!, isDirectory:true).deletingLastPathComponent().deletingLastPathComponent().appendingPathComponent("tmp")
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let orderedURLs = try? FileManager.default.enumerator(at: devFsPath, includingPropertiesForKeys: [ .pathKey, .creationDateKey], options: .skipsHiddenFiles)
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for case let fileURL as URL in orderedURLs! {
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if !(fileURL.path.hasSuffix(assetPath)) {
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continue
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}
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print("Found hot reloaded asset : \(fileURL)")
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if found == nil {
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found = fileURL
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} else {
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do {
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let c1 = try found!.resourceValues(forKeys: [.creationDateKey]).creationDate
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let c2 = try fileURL.resourceValues(forKeys: [.creationDateKey]).creationDate
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if c1! < c2! {
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found = fileURL
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print("\(fileURL) is newer, replacing")
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} else {
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print("Ignoring older asset")
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}
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} catch {
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}
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}
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}
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}
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do {
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if let cd = try found?.resourceValues(forKeys:[.creationDateKey]).creationDate {
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if cd > instance.createdAt {
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print("Using hot reloaded asset : \(found)")
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path = found!.path
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}
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}
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} catch {
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}
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if path == nil {
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if(uriString.hasPrefix("file://")) {
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path = String(uriString.dropFirst(7))
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} else if(uriString.hasPrefix("asset://")) {
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let key = instance.registrar.lookupKey(forAsset:String(uriString.dropFirst(8)))
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path = Bundle.main.path(forResource: key, ofType:nil)
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print("Found path \(path) for uri \(uriString)")
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guard path != nil else {
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print("File not present in bundle : \(uri)")
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return ResourceBuffer()
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}
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} else {
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let key = instance.registrar.lookupKey(forAsset:uriString)
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path = Bundle.main.path(forResource: key, ofType:nil)
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print("Found path \(path) for uri \(uriString)")
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guard path != nil else {
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print("File not present in bundle : \(uri)")
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return ResourceBuffer()
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}
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}
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}
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do {
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let data = try Data(contentsOf: URL(fileURLWithPath:path!))
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let resId = instance.resources.count
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let nsData = data as NSData
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instance.resources[resId] = nsData
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let rawPtr = nsData.bytes
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let length = Int32(nsData.count)
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print("Opened asset of length \(Int32(length)) at path \(path!)")
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return ResourceBuffer(data:rawPtr, size:length, id:Int32(resId))
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} catch {
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print("Error opening file: \(error)")
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}
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return ResourceBuffer()
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}
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var freeResource : @convention(c) (ResourceBuffer,UnsafeMutableRawPointer?) -> () = { rbuf, resourcesPtr in
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let instance:SwiftFlutterFilamentPlugin = Unmanaged<SwiftFlutterFilamentPlugin>.fromOpaque(resourcesPtr!).takeUnretainedValue()
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instance.resources.removeObject(forKey:rbuf.id)
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}
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var markTextureFrameAvailable : @convention(c) (UnsafeMutableRawPointer?) -> () = { instancePtr in
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let instance:SwiftFlutterFilamentPlugin = Unmanaged<SwiftFlutterFilamentPlugin>.fromOpaque(instancePtr!).takeUnretainedValue()
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if(instance.texture != nil) {
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instance.registry.textureFrameAvailable(instance.texture!.flutterTextureId)
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}
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}
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public static func register(with registrar: FlutterPluginRegistrar) {
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let _messenger = registrar.messenger();
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messenger = _messenger;
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let channel = FlutterMethodChannel(name: "app.polyvox.filament/event", binaryMessenger: _messenger)
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let instance = SwiftFlutterFilamentPlugin(textureRegistry: registrar.textures(), registrar:registrar)
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registrar.addMethodCallDelegate(instance, channel: channel)
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}
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init(textureRegistry: FlutterTextureRegistry, registrar:FlutterPluginRegistrar) {
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self.registry = textureRegistry;
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self.registrar = registrar
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}
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public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
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let methodName = call.method;
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switch methodName {
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case "getResourceLoaderWrapper":
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let resourceLoaderWrapper = make_resource_loader(loadResource, freeResource, Unmanaged.passUnretained(self).toOpaque())
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result(unsafeBitCast(resourceLoaderWrapper, to:Int64.self))
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case "getRenderCallback":
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let renderCallback = markTextureFrameAvailable
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result([
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unsafeBitCast(renderCallback, to:Int64.self), unsafeBitCast(Unmanaged.passUnretained(self), to:UInt64.self)])
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case "getDriverPlatform":
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result(nil)
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case "getSharedContext":
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result(nil)
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case "createTexture":
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let args = call.arguments as! [Any]
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let width = args[0] as! Int64
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let height = args[1] as! Int64
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self.texture = FlutterFilamentTexture(width: width, height: height, registry: registry)
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let pixelBufferPtr = unsafeBitCast(self.texture!.pixelBuffer, to:UnsafeRawPointer.self)
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let pixelBufferAddress = Int(bitPattern:pixelBufferPtr);
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result([self.texture!.flutterTextureId as Any, nil, pixelBufferAddress])
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case "destroyTexture":
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let texture = self.texture
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self.texture = nil
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texture?.destroy()
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result(true)
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default:
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result(FlutterMethodNotImplemented)
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}
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}
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}
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