ios (even on simulator) now works

Fixed both plugin not being registered (so no plugin was happening) and metal omn simulator

Author: alexey-unity

PluginSource/source/PlatformBase.h

@@ -9,15 +9,18 @@
 // UNITY_WIN - Windows (regular win32)
 // UNITY_OSX - Mac OS X
 // UNITY_LINUX - Linux
-// UNITY_IPHONE - iOS
+// UNITY_IOS - iOS
+// UNITY_TVOS - tvOS
 // UNITY_ANDROID - Android
 // UNITY_METRO - WSA or UWP
 // UNITY_WEBGL - WebGL
 #if _MSC_VER
 	#define UNITY_WIN 1
 #elif defined(__APPLE__)
-	#if defined(__arm__) || defined(__arm64__)
-		#define UNITY_IPHONE 1
+    #if TARGET_OS_TV
+        #define UNITY_TVOS 1
+    #elif TARGET_OS_IOS
+        #define UNITY_IOS 1
 	#else
 		#define UNITY_OSX 1
 	#endif
@@ -46,7 +49,7 @@
 	#define SUPPORT_OPENGL_UNIFIED 1
 	#define SUPPORT_OPENGL_CORE 1
 	#define SUPPORT_VULKAN 0 // Requires Vulkan SDK to be installed
-#elif UNITY_IPHONE || UNITY_ANDROID || UNITY_WEBGL
+#elif UNITY_IOS || UNITY_TVOS || UNITY_ANDROID || UNITY_WEBGL
 	#ifndef SUPPORT_OPENGL_ES
 		#define SUPPORT_OPENGL_ES 1
 	#endif
@@ -59,7 +62,7 @@
 	#define SUPPORT_OPENGL_CORE 1
 #endif
 
-#if UNITY_IPHONE || UNITY_OSX
+#if UNITY_IOS || UNITY_TVOS || UNITY_OSX
 	#define SUPPORT_METAL 1
 #endif
 

PluginSource/source/RenderAPI_Metal.mm

@@ -139,14 +139,8 @@
 	// Let's assume we're rendering into BGRA8Unorm...
 	pipeDesc.colorAttachments[0].pixelFormat= MTLPixelFormatBGRA8Unorm;
 
-	// OSX/tvOS insist on more modern enums
-#if (UNITY_IPHONE && TARGET_OS_TV) || UNITY_OSX
 	pipeDesc.depthAttachmentPixelFormat		= MTLPixelFormatDepth32Float_Stencil8;
 	pipeDesc.stencilAttachmentPixelFormat	= MTLPixelFormatDepth32Float_Stencil8;
-#else
-	pipeDesc.depthAttachmentPixelFormat		= MTLPixelFormatDepth32Float;
-	pipeDesc.stencilAttachmentPixelFormat	= MTLPixelFormatStencil8;
-#endif
 
 	pipeDesc.sampleCount = 1;
 	pipeDesc.colorAttachments[0].blendingEnabled = NO;
@@ -180,10 +174,9 @@
 	if (type == kUnityGfxDeviceEventInitialize)
 	{
 		m_MetalGraphics = interfaces->Get<IUnityGraphicsMetal>();
-		NSBundle* metalBundle = m_MetalGraphics->MetalBundle();
-		MTLVertexDescriptorClass			= [metalBundle classNamed:@"MTLVertexDescriptor"];
-		MTLRenderPipelineDescriptorClass	= [metalBundle classNamed:@"MTLRenderPipelineDescriptor"];
-		MTLDepthStencilDescriptorClass		= [metalBundle classNamed:@"MTLDepthStencilDescriptor"];
+		MTLVertexDescriptorClass            = NSClassFromString(@"MTLVertexDescriptor");
+		MTLRenderPipelineDescriptorClass    = NSClassFromString(@"MTLRenderPipelineDescriptor");
+		MTLDepthStencilDescriptorClass      = NSClassFromString(@"MTLDepthStencilDescriptor");
 
 		CreateResources();
 	}

PluginSource/source/RenderAPI_OpenGLCoreES.cpp

@@ -9,7 +9,7 @@
 
 
 #include <assert.h>
-#if UNITY_IPHONE
+#if UNITY_IOS || UNITY_TVOS
 #	include <OpenGLES/ES2/gl.h>
 #elif UNITY_ANDROID || UNITY_WEBGL
 #	include <GLES2/gl2.h>

UnityProject/Assets/Editor/MyBuildPostprocessor.cs

@@ -10,43 +10,65 @@ public class MyBuildPostprocessor
 	[PostProcessBuild]
 	public static void OnPostprocessBuild(BuildTarget target, string pathToBuiltProject)
 	{
-		if (target == BuildTarget.iOS)
+		if (target == BuildTarget.iOS || target == BuildTarget.tvOS)
 			OnPostprocessBuildIOS(pathToBuiltProject);
 	}
 
 	private static void OnPostprocessBuildIOS(string pathToBuiltProject)
 	{
-		// We use UnityEditor.iOS.Xcode API which only exists in iOS editor module
-		#if UNITY_IOS
-
+	// We use UnityEditor.iOS.Xcode API which only exists in iOS editor module
+	#if UNITY_IOS || UNITY_TVOS
 		string projPath = pathToBuiltProject + "/Unity-iPhone.xcodeproj/project.pbxproj";
 
 		UnityEditor.iOS.Xcode.PBXProject proj = new UnityEditor.iOS.Xcode.PBXProject();
 		proj.ReadFromString(File.ReadAllText(projPath));
-		string target = proj.TargetGuidByName("Unity-iPhone");
 
-		Directory.CreateDirectory(Path.Combine(pathToBuiltProject, "Libraries/Unity"));
+		//2019.3
+		string target = proj.GetUnityFrameworkTargetGuid();
 
-		string[] filesToCopy = new string[]
-		{
-			"PlatformBase.h",
-			"RenderAPI_Metal.mm",
-			"RenderAPI_OpenGLCoreES.cpp",
-			"RenderAPI.cpp",
-			"RenderAPI.h",
-			"RenderingPlugin.cpp",
+		string[] filesToCopy = new string[] {
+			"PlatformBase.h", "RenderingPlugin.cpp",
+			"RenderAPI_Metal.mm", "RenderAPI_OpenGLCoreES.cpp", "RenderAPI.cpp", "RenderAPI.h",
 		};
-
 		for(int i = 0 ; i < filesToCopy.Length ; ++i)
 		{
-			var srcPath = Path.Combine("../PluginSource/source", filesToCopy[i]);
-			var dstLocalPath = "Libraries/" + filesToCopy[i];
-			var dstPath = Path.Combine(pathToBuiltProject, dstLocalPath);
+			string srcPath = Path.Combine("../PluginSource/source", filesToCopy[i]);
+			string dstLocalPath = "Libraries/" + filesToCopy[i];
+			string dstPath = Path.Combine(pathToBuiltProject, dstLocalPath);
 			File.Copy(srcPath, dstPath, true);
 			proj.AddFileToBuild(target, proj.AddFile(dstLocalPath, dstLocalPath));
 		}
 
+		// on ios/tvos we need to register native plugins in trampoline
+		// as the code needed for that is minuscle we just codegen it
+		string registerCode = @"
+	#import ""UnityAppController.h""
+	#include ""Unity/IUnityGraphics.h""
+
+	extern ""C"" void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API UnityPluginLoad(IUnityInterfaces* unityInterfaces);
+	extern ""C"" void UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API UnityPluginUnload();
+
+	@interface MyAppController : UnityAppController
+	{
+	}
+	- (void)shouldAttachRenderDelegate;
+	@end
+	@implementation MyAppController
+	- (void)shouldAttachRenderDelegate
+	{
+		// unlike desktops where plugin dynamic library is automatically loaded and registered
+		// we need to do that manually on iOS
+		UnityRegisterRenderingPluginV5(&UnityPluginLoad, &UnityPluginUnload);
+	}
+
+	@end
+	IMPL_APP_CONTROLLER_SUBCLASS(MyAppController);
+		";
+		const string registerPath = "Libraries/RegisterPlugin.mm";
+		File.WriteAllText(Path.Combine(pathToBuiltProject, registerPath), registerCode);
+		proj.AddFileToBuild(target, proj.AddFile(registerPath, registerPath));
+
 		File.WriteAllText(projPath, proj.WriteToString());
-		#endif // #if UNITY_IOS
+	#endif
 	}
 }