init

2025-09-04 10:54:47 +08:00
commit 6bc8f61b18
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+/* Copyright (c) 2024, Holochip Inc.
+*
+* SPDX-License-Identifier: Apache-2.0
+*
+* Licensed under the Apache License, Version 2.0 the "License";
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+ */
+
+#include "ViewController.h"
+#include "ios/context.hpp"
+#include "core/platform/entrypoint.hpp"
+#include "platform/ios/ios_platform.h"
+#include "platform/ios/ios_window.h"
+
+int platform_main(const vkb::PlatformContext &);
+
+@interface ViewController(){
+    CADisplayLink* _displayLink;
+    std::unique_ptr<vkb::PlatformContext> context;
+    vkb::IosPlatformContext* _context;
+    vkb::ExitCode _code;
+}
+@property (retain, nonatomic) IBOutlet VulkanView *vulkan_view;
+
+@end
+
+@implementation ViewController
+- (void)viewDidLoad {
+    [super viewDidLoad];
+
+
+    // Convert incoming args to "C" argc/argv strings
+    NSArray *args = [[NSProcessInfo processInfo] arguments];
+    const char** argv = (const char**) alloca(sizeof(char*) * args.count);
+    for(unsigned int i = 0; i < args.count; i++) {
+        NSString *s = args[i];
+        argv[i] = s.UTF8String;
+    }
+
+	self.vulkan_view.contentScaleFactor = UIScreen.mainScreen.nativeScale;
+
+    context = create_platform_context((int)args.count, const_cast<char**>(argv));
+    _context = (vkb::IosPlatformContext*)context.get();
+    _context->view = self.vulkan_view;
+    _code = (vkb::ExitCode)platform_main(*context);
+    uint32_t fps = 60;
+   _displayLink = [CADisplayLink displayLinkWithTarget: self selector: @selector(renderLoop)];
+   [_displayLink setPreferredFramesPerSecond:fps];
+   [_displayLink addToRunLoop: NSRunLoop.currentRunLoop forMode: NSDefaultRunLoopMode];
+}
+
+-(void) renderLoop {
+    if(!_displayLink.isPaused && [UIApplication sharedApplication].applicationState == UIApplicationStateActive) {
+		if(_code == vkb::ExitCode::Success) {
+			_code = ((vkb::IosPlatform*)_context->userPlatform)->main_loop_frame();
+		}
+		else {
+			// On ExitCode error, remove displayLink from run loop and terminate any active sample or batch run
+			[_displayLink invalidate];
+			((vkb::IosPlatform*)_context->userPlatform)->terminate(_code);
+
+			// Not typically allowed for iOS apps, but exit here given this is an Xcode-controlled dev application
+			exit(0);
+		}
+    }
+}
+@end