373 lines
15 KiB
Swift
373 lines
15 KiB
Swift
import Flutter
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import UIKit
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import OpenGLES.ES3
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import GLKit
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public class SwiftPolyvoxFilamentPlugin: NSObject, FlutterPlugin, FlutterTexture {
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var registrar : FlutterPluginRegistrar
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var textureId: Int64?
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var registry: FlutterTextureRegistry
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var width: Double = 0
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var height: Double = 0
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var context: EAGLContext?;
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var targetPixelBuffer: CVPixelBuffer?;
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var textureCache: CVOpenGLESTextureCache?;
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var texture: CVOpenGLESTexture? = nil;
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var frameBuffer: GLuint = 0;
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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 resources:NSMutableDictionary = [:]
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var viewer:UnsafeMutableRawPointer? = nil
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var displayLink:CADisplayLink? = nil
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static var messenger : FlutterBinaryMessenger? = nil;
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var loadResourcePtr: UnsafeMutableRawPointer? = nil
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var freeResourcePtr: UnsafeMutableRawPointer? = nil
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var resourcesPtr : UnsafeMutableRawPointer? = nil
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var _rendering = true
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var loadResource : @convention(c) (UnsafeRawPointer, UnsafeMutableRawPointer) -> ResourceBuffer = { uri, resourcesPtr in
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let instance:SwiftPolyvoxFilamentPlugin = Unmanaged<SwiftPolyvoxFilamentPlugin>.fromOpaque(resourcesPtr).takeUnretainedValue()
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let uriString = String(cString:uri.assumingMemoryBound(to: UInt8.self))
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var path:String? = nil
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if(uriString.hasPrefix("file://")) {
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path = String(uriString.dropFirst(7))
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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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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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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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return ResourceBuffer(data:rawPtr, size:UInt32(nsData.count), id:UInt32(resId))
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} catch {
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print("Error opening file: \(error)")
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return ResourceBuffer()
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}
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return ResourceBuffer()
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}
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var freeResource : @convention(c) (UInt32,UnsafeMutableRawPointer) -> () = { rid, resourcesPtr in
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let instance:SwiftPolyvoxFilamentPlugin = Unmanaged<SwiftPolyvoxFilamentPlugin>.fromOpaque(resourcesPtr).takeUnretainedValue()
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instance.resources.removeObject(forKey:rid)
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}
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func createDisplayLink() {
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displayLink = CADisplayLink(target: self,
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selector: #selector(doRender))
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displayLink!.add(to: .current, forMode: RunLoop.Mode.default)
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}
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@objc func doRender() {
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if(viewer != nil && _rendering) {
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render(viewer, 0)
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self.registry.textureFrameAvailable(self.textureId!)
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}
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}
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public func copyPixelBuffer() -> Unmanaged<CVPixelBuffer>? {
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if(targetPixelBuffer == nil) {
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print("empty")
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return nil;
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}
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return Unmanaged.passRetained(targetPixelBuffer!);
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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 = SwiftPolyvoxFilamentPlugin(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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private func createPixelBuffer(width:Int, height:Int) {
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if(targetPixelBuffer != nil) {
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destroy_swap_chain(self.viewer)
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}
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if(CVPixelBufferCreate(kCFAllocatorDefault, Int(width), Int(height),
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kCVPixelFormatType_32BGRA, pixelBufferAttrs, &targetPixelBuffer) != kCVReturnSuccess) {
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print("Error allocating pixel buffer")
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}
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if(self.viewer != nil) {
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create_swap_chain(self.viewer, unsafeBitCast(targetPixelBuffer!, to: UnsafeMutableRawPointer.self))
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update_viewport_and_camera_projection(self.viewer!, Int32(width), Int32(height), 1.0);
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}
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print("Pixel buffer created")
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}
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private func initialize(width:Int32, height:Int32) {
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createPixelBuffer(width:Int(width), height:Int(height))
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self.textureId = self.registry.register(self)
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loadResourcePtr = unsafeBitCast(loadResource, to: UnsafeMutableRawPointer.self)
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freeResourcePtr = unsafeBitCast(freeResource, to: UnsafeMutableRawPointer.self)
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viewer = filament_viewer_new_ios(
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unsafeBitCast(targetPixelBuffer!, to: UnsafeMutableRawPointer.self),
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loadResourcePtr!,
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freeResourcePtr!,
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Unmanaged.passUnretained(self).toOpaque()
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)
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update_viewport_and_camera_projection(self.viewer!, Int32(width), Int32(height), 1.0);
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createDisplayLink()
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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 "addLight":
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let args = call.arguments as! Array<Any>
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let entity = add_light(
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self.viewer,
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args[0] as! UInt8,
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Float(args[1] as! Double),
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Float(args[2] as! Double),
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Float(args[3] as! Double),
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Float(args[4] as! Double),
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Float(args[5] as! Double),
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Float(args[6] as! Double),
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Float(args[7] as! Double),
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Float(args[8] as! Double),
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args[9] as! Bool)
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result(entity);
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case "animateWeights":
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let args = call.arguments as! Array<Any?>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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let frameData = args[1] as! Array<Double>
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let numWeights = args[2] as! Int
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let numFrames = args[3] as! Int
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let frameLenInMs = args[4] as! Double
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frameData.map { Float($0)}.withUnsafeBufferPointer {
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animate_weights(assetPtr, UnsafeMutablePointer<Float>.init(mutating:$0.baseAddress), Int32(numWeights), Int32(numFrames), Float(frameLenInMs))
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}
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result("OK")
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case "initialize":
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let args = call.arguments as! Array<Int32>
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initialize(width:args[0], height:args[1])
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result(self.textureId);
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case "clearLights":
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clear_lights(self.viewer);
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result(true);
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case "loadSkybox":
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load_skybox(self.viewer!, call.arguments as! String)
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result("OK");
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case "removeSkybox":
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remove_skybox(self.viewer!)
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result("OK");
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case "loadGlb":
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let assetPtr = load_glb(self.viewer, call.arguments as! String)
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result(unsafeBitCast(assetPtr, to:Int64.self));
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case "loadGltf":
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let args = call.arguments as! Array<Any?>
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result(load_gltf(self.viewer, args[0] as! String, args[1] as! String));
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case "removeAsset":
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: call.arguments as! Int)
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remove_asset(viewer!, assetPtr)
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result("OK")
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case "clearAssets":
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clear_assets(viewer!)
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result("OK")
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case "loadIbl":
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load_ibl(self.viewer, call.arguments as! String)
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result("OK");
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case "removeIbl":
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remove_ibl(self.viewer)
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result("OK");
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case "setCamera":
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let args = call.arguments as! Array<Any?>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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set_camera(self.viewer, assetPtr, args[1] as! String)
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result("OK");
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case "playAnimation":
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let args = call.arguments as! Array<Any?>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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let animationIndex = args[1] as! Int32;
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let loop = args[2] as! Bool;
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let reverse = args[3] as! Bool;
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play_animation(assetPtr, animationIndex, loop, reverse)
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result("OK");
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case "stopAnimation":
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let args = call.arguments as! Array<Any?>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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let animationIndex = args[1] as! Int32
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stop_animation(assetPtr, animationIndex) // TODO
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result("OK");
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case "getTargetNames":
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let args = call.arguments as! Array<Any?>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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let meshName = args[1] as! String
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let numNames = get_target_name_count(assetPtr, meshName)
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var names = [String]()
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for i in 0...numNames - 1{
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let outPtr = UnsafeMutablePointer<CChar>.allocate(capacity:256)
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get_target_name(assetPtr, meshName, outPtr, i)
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names.append(String(cString:outPtr))
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}
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result(names);
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case "getAnimationNames":
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: call.arguments as! Int)
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let numNames = get_animation_count(assetPtr)
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var names = [String]()
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for i in 0..<numNames {
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let outPtr = UnsafeMutablePointer<CChar>.allocate(capacity:256)
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get_animation_name(assetPtr, outPtr, i)
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names.append(String(cString:outPtr))
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}
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result(names);
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case "applyWeights":
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let args = call.arguments as! Array<Any?>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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let weights = args[1] as! Array<Double>
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weights.map { Float($0) }.withUnsafeBufferPointer {
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apply_weights(assetPtr, UnsafeMutablePointer<Float>.init(mutating:$0.baseAddress), Int32(weights.count))
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}
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result("OK")
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case "panStart":
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let args = call.arguments as! Array<Any>
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grab_begin(self.viewer, Float(args[0] as! Double), Float(args[1] as! Double), true)
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result("OK")
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case "panUpdate":
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let args = call.arguments as! Array<Any>
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grab_update(self.viewer, Float(args[0] as! Double), Float(args[1] as! Double))
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result("OK")
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case "panEnd":
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grab_end(self.viewer)
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result("OK")
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case "removeLight":
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remove_light(self.viewer,call.arguments as! Int32)
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result(true);
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case "render":
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doRender()
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result("OK")
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case "resize":
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let args = call.arguments as! Array<Double>
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let width = Int(args[0])
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let height = Int(args[1])
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createPixelBuffer(width: width, height:height)
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result("OK")
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case "rotateStart":
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let args = call.arguments as! Array<Any>
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grab_begin(self.viewer, Float(args[0] as! Double), Float(args[1] as! Double), false)
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result("OK")
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case "rotateUpdate":
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let args = call.arguments as! Array<Any>
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grab_update(self.viewer, Float(args[0] as! Double), Float(args[1] as! Double))
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result("OK")
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case "rotateEnd":
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grab_end(self.viewer)
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result("OK")
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case "setBackgroundImage":
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let uri = call.arguments as! String
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set_background_image(self.viewer!, uri)
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render(self.viewer!, 0)
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self.registry.textureFrameAvailable(self.textureId!)
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result("OK")
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case "setBackgroundImagePosition":
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let args = call.arguments as! Array<Any>
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set_background_image_position(self.viewer, Float(args[0] as! Double), Float(args[1] as! Double), args[2] as! Bool)
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result("OK");
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case "setPosition":
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let args = call.arguments as! Array<Any>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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let x = Float(args[1] as! Double)
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set_position(assetPtr, x, Float(args[2] as! Double), Float(args[3] as! Double))
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result("OK")
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case "setRotation":
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let args = call.arguments as! Array<Any>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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set_rotation(assetPtr, Float(args[1] as! Double), Float(args[2] as! Double), Float(args[3] as! Double), Float(args[4] as! Double))
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result("OK")
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case "setScale":
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let args = call.arguments as! Array<Any>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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set_scale(assetPtr, Float(args[1] as! Double))
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result("OK");
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case "setCameraPosition":
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let args = call.arguments as! Array<Any>
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set_camera_position(self.viewer, Float(args[0] as! Double), Float(args[1] as! Double), Float(args[2] as! Double))
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result("OK");
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case "setCameraRotation":
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let args = call.arguments as! Array<Any>
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set_camera_rotation(self.viewer, Float(args[0] as! Double), Float(args[1] as! Double), Float(args[2] as! Double),Float(args[3] as! Double))
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result("OK")
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case "setCameraFocalLength":
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set_camera_focal_length(self.viewer, Float(call.arguments as! Double))
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result("OK");
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case "setCameraFocusDistance":
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// TODO
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// set_camera_focus_distance(self.viewer, Float(call.arguments as! Double))
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// result("OK");
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break
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case "setFrameInterval":
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set_frame_interval(self.viewer, Float(call.arguments as! Double));
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result("OK")
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case "setRendering":
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_rendering = call.arguments as! Bool
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result("OK")
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case "setTexture":
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let args = call.arguments as! Array<Any>
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: args[0] as! Int)
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load_texture(assetPtr, args[1] as! String, args[2] as! Int32)
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result("OK");
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case "transformToUnitCube":
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let assetPtr = UnsafeMutableRawPointer.init(bitPattern: call.arguments as! Int)
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transform_to_unit_cube(assetPtr)
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result("OK");
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case "zoomBegin":
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scroll_begin(self.viewer)
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result("OK")
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case "zoomUpdate":
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let args = call.arguments as! Array<Any?>
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scroll_update(self.viewer, Float(args[0] as! Double), Float(args[1] as! Double),Float(args[2] as! Double))
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result("OK")
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case "zoomEnd":
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scroll_end(self.viewer)
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result("OK")
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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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