initial work to split into dart_filament and flutter_filament
This commit is contained in:
Nick Fisher
101
flutter_filament/macos/Classes/DartFilamentTexture.swift
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101
flutter_filament/macos/Classes/DartFilamentTexture.swift
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import Foundation
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import Foundation
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import GLKit
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@objc public class DartFilamentTexture : NSObject {
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var pixelBuffer: CVPixelBuffer?
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var pixelBufferAttrs = [
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kCVPixelBufferPixelFormatTypeKey: NSNumber(value: kCVPixelFormatType_32ABGR ),
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// kCVPixelBufferOpenGLCompatibilityKey: kCFBooleanTrue!,
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kCVPixelBufferIOSurfacePropertiesKey: [:] as CFDictionary
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] as CFDictionary
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@objc public var cvMetalTextureCache:CVMetalTextureCache?
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@objc public var cvMetalTexture:CVMetalTexture?
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@objc public var metalTexture:MTLTexture?
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@objc public var metalDevice:MTLDevice?
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@objc public var metalTextureAddress:Int = -1
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@objc override public init() {
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print("VAnilla init")
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}
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@objc public init(width:Int64, height:Int64) {
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self.metalDevice = MTLCreateSystemDefaultDevice()!
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// create pixel buffer
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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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metalTextureAddress = -1;
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return
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}
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var cvret = CVMetalTextureCacheCreate(
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kCFAllocatorDefault,
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nil,
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metalDevice!,
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nil,
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&cvMetalTextureCache);
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if(cvret != 0) {
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metalTextureAddress = -1
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return
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}
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cvret = CVMetalTextureCacheCreateTextureFromImage(
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kCFAllocatorDefault,
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cvMetalTextureCache!,
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pixelBuffer!, nil,
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MTLPixelFormat.bgra8Unorm,
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Int(width), Int(height),
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0,
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&cvMetalTexture)
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if(cvret != 0) {
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metalTextureAddress = -1
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return
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}
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metalTexture = CVMetalTextureGetTexture(cvMetalTexture!)
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let metalTexturePtr = Unmanaged.passUnretained(metalTexture!).toOpaque()
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metalTextureAddress = Int(bitPattern:metalTexturePtr)
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print("Created metal texture @ \(metalTextureAddress)")
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CVPixelBufferLockBaseAddress(pixelBuffer!, CVPixelBufferLockFlags(rawValue: 0))
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let bufferWidth = Int(CVPixelBufferGetWidth(pixelBuffer!))
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let bufferHeight = Int(CVPixelBufferGetHeight(pixelBuffer!))
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let bytesPerRow = CVPixelBufferGetBytesPerRow(pixelBuffer!)
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guard let baseAddress = CVPixelBufferGetBaseAddress(pixelBuffer!) else {
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return
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}
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for row in 0..<bufferHeight {
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var pixel = baseAddress + row * bytesPerRow
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for col in 0..<bufferWidth {
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let blue = pixel
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blue.storeBytes(of: 255, as: UInt8.self)
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let red = pixel + 1
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red.storeBytes(of: 0, as: UInt8.self)
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let green = pixel + 2
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green.storeBytes(of: 0, as: UInt8.self)
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let alpha = pixel + 3
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alpha.storeBytes(of: 255, as: UInt8.self)
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pixel += 4;
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}
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}
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CVPixelBufferUnlockBaseAddress(pixelBuffer!, CVPixelBufferLockFlags(rawValue: 0))
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}
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@objc public func destroyTexture() {
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metalTexture = nil
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}
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}
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144
flutter_filament/macos/Classes/SwiftFlutterFilamentPlugin.swift
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144
flutter_filament/macos/Classes/SwiftFlutterFilamentPlugin.swift
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@@ -0,0 +1,144 @@
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import FlutterMacOS
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import GLKit
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public class FlutterFilamentTexture : NSObject, FlutterTexture {
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var texture:DartFilamentTexture
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var flutterTextureId: Int64 = -1
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var registry: FlutterTextureRegistry
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init(registry:FlutterTextureRegistry, texture:DartFilamentTexture) {
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self.texture = texture
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self.registry = registry
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super.init()
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self.flutterTextureId = registry.register(self)
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}
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public func copyPixelBuffer() -> Unmanaged<CVPixelBuffer>? {
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return Unmanaged.passRetained(texture.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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self.registry.unregisterTexture(self.flutterTextureId)
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self.texture.destroyTexture()
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}
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}
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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:[UInt32:NSData] = [:]
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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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var uriString = String(cString:uri!)
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var path:String? = nil
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print("Received request to load \(uriString)")
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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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if(uriString.hasPrefix("asset://")) {
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uriString = String(uriString.dropFirst(8))
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}
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let bundle = Bundle.init(identifier: "io.flutter.flutter.app")!
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path = bundle.path(forResource:uriString, ofType: nil, inDirectory: "flutter_assets")
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}
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if(path != nil) {
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do {
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let data = try Data(contentsOf: URL(fileURLWithPath:path!))
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let nsData = data as NSData
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let resId = UInt32(instance.resources.count)
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instance.resources[resId] = nsData
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let length = nsData.length
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print("Resolved asset to file of length \(Int32(length)) at path \(path!)")
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return ResourceBuffer(data:nsData.bytes, size:Int32(UInt32(nsData.length)), id:Int32(UInt32(resId)))
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} catch {
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print("ERROR LOADING RESOURCE")
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}
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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.removeValue(forKey:UInt32(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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var 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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let resultArray:[Any] = [
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unsafeBitCast(renderCallback, to:Int64.self), unsafeBitCast(Unmanaged.passUnretained(self), to:UInt64.self)]
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result(resultArray)
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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 "getWindow":
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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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let texture = DartFilamentTexture(width: width, height: height)
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self.texture = FlutterFilamentTexture(registry: registry, texture: texture)
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result([self.texture!.flutterTextureId as Any, texture.metalTextureAddress])
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case "destroyTexture":
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self.texture?.destroy()
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self.texture = nil
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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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