Add example app runner for iOS

cmake/AppleHelper.cmake

@@ -4,8 +4,12 @@ function(LinkAppleFrameworks TARGET)
                           PUBLIC "-framework Foundation"
                           PUBLIC "-framework CoreImage"
                           PUBLIC "-framework CoreVideo"
+                          PUBLIC "-framework CoreGraphics"
                           PUBLIC "-framework Metal"
                           PUBLIC "-framework MetalPerformanceShaders"
+                          PUBLIC "-framework MetalKit"
+                          PUBLIC "-framework IOSurface"
+                          PUBLIC "-framework QuartzCore"
                           PUBLIC "-lstdc++"
                           PUBLIC c++
                           PUBLIC c
@@ -31,9 +35,9 @@ function(LinkAppleFrameworks TARGET)
    		target_link_libraries(${TARGET} PUBLIC ${MOBILECORESERVICES})
    	else()
         target_link_libraries(${TARGET} PUBLIC ${APPKIT})
-   		target_link_libraries(${TARGET} PUBLIC ${IOSURFACE})
         target_link_libraries(${TARGET} PUBLIC ${QUARTZ})
     endif()
+    target_link_libraries(${TARGET} PUBLIC ${IOSURFACE})
     target_link_libraries(${TARGET} PUBLIC ${FOUNDATION})
     target_link_libraries(${TARGET} PUBLIC ${CFNETWORK})
     target_link_libraries(${TARGET} PUBLIC ${SYSTEMCONFIGURATION})

examples/ExampleAppList.hpp

@@ -0,0 +1,23 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "ExampleApps/CubesExampleApp.hpp"
+#include "ExampleApps/MovingCubeApp.hpp"
+#include "ExampleApps/TexturedCubeExampleApp.hpp"
+#include "ExampleApps/BillboardExampleApp.hpp"
+#include <vector>
+
+namespace OpenVulkano
+{
+	const std::vector<std::pair<const char*, IGraphicsApp*(*)()>> EXAMPLE_APPS = {
+		{ "Cubes Example App", &CubesExampleApp::Create },
+		{ "Moving Cube Example App", &MovingCubeApp::Create },
+		{ "Textured Cube Example App", &TexturedCubeExampleApp::Create },
+		{ "Billboard Example App", &BillboardExampleApp::Create }
+	};
+}

examples/Host/iOS/ExampleViewController.h

@@ -0,0 +1,19 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+#import "Host/iOS/OpenVulkanoViewController.h"
+
+@interface MainMenuViewController : UIViewController
+@end
+
+@interface ExampleViewController : OpenVulkanoViewController
+@property(nonatomic, strong)OpenVulkanoView* renderView;
+@property size_t exampleId;
+@end

examples/Host/iOS/ExampleViewController.mm

@@ -0,0 +1,75 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#import "ExampleViewController.h"
+
+#include "../../ExampleAppList.hpp"
+
+@implementation MainMenuViewController
+- (void)viewDidLoad {
+    [super viewDidLoad];
+    
+    self.view.backgroundColor = [UIColor whiteColor];
+	
+	CGFloat buttonHeight = 50;
+	CGFloat buttonSpacing = 10;
+	CGFloat topMargin = 50;
+	
+	int i = 0;
+	for (const auto& app : OpenVulkano::EXAMPLE_APPS)
+	{
+		UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
+		button.frame = CGRectMake(20,
+								  topMargin + i * (buttonHeight + buttonSpacing),
+								  self.view.bounds.size.width - 40,
+								  buttonHeight);
+		[button setTitle:[NSString stringWithUTF8String:app.first] forState:UIControlStateNormal];
+		button.tag = i;
+		[button addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
+		[self.view addSubview:button];
+		i++;
+	}
+	
+	self.view.frame = [UIScreen mainScreen].bounds;
+	self.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
+}
+
+- (void)buttonPressed:(UIButton *)sender {
+	ExampleViewController* example = [[ExampleViewController alloc] init];
+	example.exampleId = sender.tag;
+	example.modalPresentationStyle = UIModalPresentationFullScreen;
+	[self presentViewController:example animated:true completion:nil];
+}
+
+- (void)viewDidLayoutSubviews {
+	[super viewDidLayoutSubviews];
+	self.view.frame = self.view.superview.bounds;
+}
+@end
+
+@implementation ExampleViewController
+- (void)viewDidLoad {
+	self.renderView = [[OpenVulkanoView alloc] initWithFrame:self.view.frame];
+	self.openVulkanoView = self.renderView;
+	[self.view addSubview:self.renderView];
+	[super viewDidLoad];
+	
+	self.view.frame = [UIScreen mainScreen].bounds;
+	self.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
+}
+
+- (void)viewDidLayoutSubviews {
+	[super viewDidLayoutSubviews];
+	self.view.frame = self.view.superview.bounds;
+	self.renderView.frame = self.view.frame;
+}
+
+- (BOOL)prefersStatusBarHidden { return true; }
+
+- (void *)makeGraphicsApp {
+	return OpenVulkano::EXAMPLE_APPS[self.exampleId].second();
+}
+@end

examples/Host/iOS/main.mm

@@ -0,0 +1,57 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+#import "ExampleViewController.h"
+#import "Host/iOS/OpenVulkanoAppDelegate.h"
+
+#include "Base/Logger.hpp"
+
+@interface SceneDelegate : UIResponder<UIWindowSceneDelegate>
+@end
+
+@implementation SceneDelegate
+@synthesize window = _window;
+- (void)scene:(UIScene *)scene willConnectToSession:(UISceneSession *)session options:(UISceneConnectionOptions *)connectionOptions {
+	if ([scene isKindOfClass:[UIWindowScene class]]) {
+		UIWindowScene* wScene = (UIWindowScene*)scene;
+		self.window = [[UIWindow alloc] initWithWindowScene:wScene];
+
+		MainMenuViewController* rootViewController = [[MainMenuViewController alloc] init];
+		UINavigationController* navigationController = [[UINavigationController alloc] initWithRootViewController:rootViewController];
+		
+		self.window.rootViewController = navigationController;
+		[self.window makeKeyAndVisible];
+	}
+}
+@end
+
+@interface AppDelegate : OpenVulkanoAppDelegate
+@end
+
+@implementation AppDelegate
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+	// Override point for customization after application launch.
+	return YES;
+}
+
+- (UISceneConfiguration *)application:(UIApplication *)application configurationForConnectingSceneSession:(UISceneSession *)connectingSceneSession options:(UISceneConnectionOptions *)options {
+	UISceneConfiguration *configuration = [[UISceneConfiguration alloc] initWithName:nil sessionRole:UIWindowSceneSessionRoleApplication];
+	configuration.delegateClass = SceneDelegate.class;
+	return configuration;
+}
+@end
+
+int main(int argCount, char** args)
+{
+	using namespace OpenVulkano;
+	Logger::SetupLogger();
+	@autoreleasepool
+	{
+		return UIApplicationMain(argCount, args, nil, NSStringFromClass([AppDelegate class]));
+	}
+}

examples/main.cpp

@@ -5,10 +5,7 @@
  */
 
 #include "Host/GraphicsAppManager.hpp"
-#include "ExampleApps/CubesExampleApp.hpp"
+#include "ExampleAppList.hpp"
-#include "ExampleApps/MovingCubeApp.hpp"
-#include "ExampleApps/TexturedCubeExampleApp.hpp"
-#include "ExampleApps/BillboardExampleApp.hpp"
 
 #include <ftxui/component/captured_mouse.hpp>
 #include <ftxui/component/component.hpp>
@@ -22,12 +19,11 @@ using namespace OpenVulkano;
 
 int main(int argc, char** argv)
 {
-	std::vector<std::string> examples = {
+	std::vector<std::string> examples;
-		"Cubes Example App",
+	for (const auto& e : EXAMPLE_APPS)
-		"Moving Cube Example App",
+	{
-		"Textured Cube Example App",
+		examples.emplace_back(e.first);
-		"Billboard Example App"
+	}
-	};
 
 	int selectedExample = 0;
 	ftxui::MenuOption option;
@@ -37,15 +33,9 @@ int main(int argc, char** argv)
 
 	screen.Loop(menu);
 
-	std::unique_ptr<IGraphicsApp> app;
+	if (selectedExample >= examples.size()) throw std::runtime_error("Invalid menu selection!");
-	switch (selectedExample)
+
-	{
+	std::unique_ptr<IGraphicsApp> app( EXAMPLE_APPS[selectedExample].second() );
-		case 0: app = CubesExampleApp::CreateUnique(); break;
-		case 1: app = MovingCubeApp::CreateUnique(); break;
-		case 2: app = TexturedCubeExampleApp::CreateUnique(); break;
-		case 3: app = BillboardExampleApp::CreateUnique(); break;
-		default: throw std::runtime_error("Invalid menu selection!"); break;
-	}
 
 	GraphicsAppManager manager(app.get());
 	manager.Run();