move flutter_filament plugin to federated structure

2024-05-15 22:25:46 +08:00
parent 66e5e38324
commit 6b50dc9d36
325 changed files with 32625 additions and 0 deletions
--- a/flutter_filament_federated/flutter_filament/macos/Classes/DartFilamentTexture.swift
+++ b/flutter_filament_federated/flutter_filament/macos/Classes/DartFilamentTexture.swift
@@ -0,0 +1,102 @@
+import Foundation
+import GLKit
+
+@objc public class DartFilamentTexture : NSObject {
+
+    public var pixelBuffer: CVPixelBuffer?
+    
+    var pixelBufferAttrs = [
+        kCVPixelBufferPixelFormatTypeKey: NSNumber(value: kCVPixelFormatType_32ABGR ),
+        kCVPixelBufferIOSurfacePropertiesKey: [:] as CFDictionary
+    ] as [CFString : Any] as CFDictionary
+
+    @objc public var cvMetalTextureCache:CVMetalTextureCache?
+    @objc public var cvMetalTexture:CVMetalTexture?
+    @objc public var metalTexture:MTLTexture?
+    @objc public var metalDevice:MTLDevice?
+    @objc public var metalTextureAddress:Int = -1
+
+    @objc override public init() {
+        
+    }
+
+    @objc public init(width:Int64, height:Int64) { 
+        
+        self.metalDevice = MTLCreateSystemDefaultDevice()!
+
+        // create pixel buffer
+        if(CVPixelBufferCreate(kCFAllocatorDefault, Int(width), Int(height),
+                               kCVPixelFormatType_32BGRA, pixelBufferAttrs, &pixelBuffer) != kCVReturnSuccess) {
+            print("Error allocating pixel buffer")
+            metalTextureAddress = -1;
+            return
+        }
+           
+        var cvret = CVMetalTextureCacheCreate(
+            kCFAllocatorDefault,
+            nil,
+            metalDevice!,
+            nil,
+            &cvMetalTextureCache);
+        if(cvret != 0) { 
+            print("Error creating Metal texture cache")
+            metalTextureAddress = -1
+            return
+        }
+        cvret = CVMetalTextureCacheCreateTextureFromImage(
+                        kCFAllocatorDefault,
+                        cvMetalTextureCache!,
+                        pixelBuffer!, nil,
+                        MTLPixelFormat.bgra8Unorm,
+                        Int(width), Int(height),
+                        0,
+                        &cvMetalTexture)
+        if(cvret != 0) { 
+            print("Error creating texture from image")
+            metalTextureAddress = -1
+            return
+        }
+        metalTexture = CVMetalTextureGetTexture(cvMetalTexture!)
+        let metalTexturePtr = Unmanaged.passUnretained(metalTexture!).toOpaque()
+        metalTextureAddress = Int(bitPattern:metalTexturePtr)
+        
+        print("Created metal texture @ \(metalTextureAddress)")
+        
+        // CVPixelBufferLockBaseAddress(pixelBuffer!, CVPixelBufferLockFlags(rawValue: 0))
+        //        let bufferWidth = Int(CVPixelBufferGetWidth(pixelBuffer!))
+        //        let bufferHeight = Int(CVPixelBufferGetHeight(pixelBuffer!))
+        //        let bytesPerRow = CVPixelBufferGetBytesPerRow(pixelBuffer!)
+
+        //        guard let baseAddress = CVPixelBufferGetBaseAddress(pixelBuffer!) else {
+        //                return
+        //        }
+
+        //        for row in 0..<bufferHeight {
+        //            var pixel = baseAddress + row * bytesPerRow
+        //            for col in 0..<bufferWidth {
+        //                let blue = pixel
+        //                blue.storeBytes(of: 255, as: UInt8.self)
+
+        //                let red = pixel + 1
+        //                red.storeBytes(of: 0, as: UInt8.self)
+
+        //                let green = pixel + 2
+        //                green.storeBytes(of: 0, as: UInt8.self)
+                    
+        //                let alpha = pixel + 3
+        //                alpha.storeBytes(of: 255, as: UInt8.self)
+                       
+        //                pixel += 4;
+        //            }
+        //        }
+
+        //        CVPixelBufferUnlockBaseAddress(pixelBuffer!, CVPixelBufferLockFlags(rawValue: 0))
+
+    }
+
+    @objc public func destroyTexture()  {
+        metalTexture = nil
+    }
+
+
+}