feat: platform iOS bridge layer
This commit is contained in:
vsaint1
parent
4ff554e950
commit
6af06cabe1
472
src/rcore_ios_main.m
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472
src/rcore_ios_main.m
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#import <Foundation/Foundation.h>
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#import <OpenGLES/EAGL.h>
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#import <OpenGLES/ES3/gl.h>
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#import <QuartzCore/QuartzCore.h>
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#import <UIKit/UIKit.h>
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#include <dlfcn.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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extern int raylib_main(int argc, char *argv[]);
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extern void ios_handle_touch_began(intptr_t touchId, float x, float y);
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extern void ios_handle_touch_moved(intptr_t touchId, float x, float y);
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extern void ios_handle_touch_ended(intptr_t touchId, float x, float y);
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extern void ios_handle_touch_cancelled(intptr_t touchId, float x, float y);
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extern void ios_request_close(void);
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extern void ios_set_window_focused(bool focused);
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typedef struct IOSBridgeState {
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int argc;
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char **argv;
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UIWindow *window;
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UIViewController *viewController;
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UIView *glView;
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EAGLContext *context;
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GLuint framebuffer;
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GLuint colorBuffer;
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GLuint depthBuffer;
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int screenWidth;
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int screenHeight;
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int renderWidth;
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int renderHeight;
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float scaleX;
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float scaleY;
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bool raylibStarted;
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bool shuttingDown;
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bool initialized;
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} IOSBridgeState;
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static IOSBridgeState ios = {0};
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@interface RaylibGLView : UIView
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@end
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@implementation RaylibGLView
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+ (Class)layerClass {
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return [CAEAGLLayer class];
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}
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@end
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@interface RaylibViewController : UIViewController
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@end
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@implementation RaylibViewController
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- (BOOL)prefersStatusBarHidden {
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return YES;
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}
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- (void)loadView {
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self.view = [[RaylibGLView alloc] initWithFrame:[UIScreen mainScreen].bounds];
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self.view.multipleTouchEnabled = YES;
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}
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- (void)viewDidAppear:(BOOL)animated {
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[super viewDidAppear:animated];
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ios_set_window_focused(true);
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}
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- (void)viewWillDisappear:(BOOL)animated {
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[super viewWillDisappear:animated];
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ios_set_window_focused(false);
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}
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- (void)forwardTouches:(NSSet<UITouch *> *)touches action:(int)action {
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for (UITouch *touch in touches) {
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CGPoint point = [touch locationInView:self.view];
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intptr_t touchId = (intptr_t)(__bridge void *)touch;
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switch (action) {
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case 0:
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ios_handle_touch_began(touchId, point.x, point.y);
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break;
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case 1:
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ios_handle_touch_moved(touchId, point.x, point.y);
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break;
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case 2:
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ios_handle_touch_ended(touchId, point.x, point.y);
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break;
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case 3:
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ios_handle_touch_cancelled(touchId, point.x, point.y);
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break;
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default:
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break;
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}
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}
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}
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- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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(void)event;
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[self forwardTouches:touches action:0];
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}
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- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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(void)event;
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[self forwardTouches:touches action:1];
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}
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- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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(void)event;
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[self forwardTouches:touches action:2];
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}
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- (void)touchesCancelled:(NSSet<UITouch *> *)touches
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withEvent:(UIEvent *)event {
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(void)event;
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[self forwardTouches:touches action:3];
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}
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@end
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void ios_shutdown_window(void) {
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if (!ios.initialized || ios.shuttingDown)
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return;
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ios.shuttingDown = true;
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void (^shutdownBlock)(void) = ^{
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if (ios.context != nil) {
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[EAGLContext setCurrentContext:ios.context];
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if (ios.framebuffer != 0)
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glDeleteFramebuffers(1, &ios.framebuffer);
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if (ios.colorBuffer != 0)
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glDeleteRenderbuffers(1, &ios.colorBuffer);
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if (ios.depthBuffer != 0)
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glDeleteRenderbuffers(1, &ios.depthBuffer);
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ios.framebuffer = 0;
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ios.colorBuffer = 0;
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ios.depthBuffer = 0;
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ios.context = nil;
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}
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ios.glView = nil;
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ios.viewController = nil;
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ios.window = nil;
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ios.initialized = false;
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};
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if ([NSThread isMainThread])
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shutdownBlock();
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else
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dispatch_sync(dispatch_get_main_queue(), shutdownBlock);
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ios.shuttingDown = false;
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}
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@interface RaylibAppDelegate : UIResponder <UIApplicationDelegate>
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@end
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@interface RaylibSceneDelegate : UIResponder <UIWindowSceneDelegate>
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@property(strong, nonatomic) UIWindow *window;
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@end
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static void ios_start_raylib_main(void) {
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if (ios.raylibStarted)
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return;
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ios.raylibStarted = true;
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dispatch_async(dispatch_get_global_queue(QOS_CLASS_USER_INTERACTIVE, 0), ^{
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raylib_main(ios.argc, ios.argv);
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});
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}
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@implementation RaylibAppDelegate
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- (BOOL)application:(UIApplication *)application
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didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
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(void)application;
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(void)launchOptions;
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return YES;
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}
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- (UISceneConfiguration *)application:(UIApplication *)application
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configurationForConnectingSceneSession:
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(UISceneSession *)connectingSceneSession
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options:(UISceneConnectionOptions *)options {
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(void)application;
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(void)connectingSceneSession;
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(void)options;
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UISceneConfiguration *configuration = [UISceneConfiguration
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configurationWithName:@"Default Configuration"
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sessionRole:UIWindowSceneSessionRoleApplication];
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configuration.delegateClass = [RaylibSceneDelegate class];
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return configuration;
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}
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- (void)applicationWillResignActive:(UIApplication *)application {
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(void)application;
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ios_set_window_focused(false);
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}
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- (void)applicationDidBecomeActive:(UIApplication *)application {
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(void)application;
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ios_set_window_focused(true);
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}
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- (void)applicationWillTerminate:(UIApplication *)application {
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(void)application;
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ios_request_close();
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}
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@end
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@implementation RaylibSceneDelegate
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- (void)scene:(UIScene *)scene
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willConnectToSession:(UISceneSession *)session
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options:(UISceneConnectionOptions *)connectionOptions {
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(void)session;
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(void)connectionOptions;
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if (![scene isKindOfClass:[UIWindowScene class]])
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return;
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UIWindowScene *windowScene = (UIWindowScene *)scene;
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self.window = [[UIWindow alloc] initWithWindowScene:windowScene];
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ios.window = self.window;
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if (ios.viewController == nil) {
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ios.viewController = [[RaylibViewController alloc] init];
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}
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self.window.rootViewController = ios.viewController;
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[self.window makeKeyAndVisible];
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ios_start_raylib_main();
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}
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- (void)sceneDidBecomeActive:(UIScene *)scene {
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(void)scene;
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ios_set_window_focused(true);
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}
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- (void)sceneWillResignActive:(UIScene *)scene {
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(void)scene;
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ios_set_window_focused(false);
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}
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- (void)sceneDidDisconnect:(UIScene *)scene {
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(void)scene;
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ios_request_close();
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ios_shutdown_window();
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}
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@end
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static BOOL ios_setup_gl(void) {
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if (!ios.window || !ios.viewController)
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return NO;
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ios.glView = ios.viewController.view;
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CAEAGLLayer *eaglLayer = (CAEAGLLayer *)ios.glView.layer;
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eaglLayer.opaque = YES;
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eaglLayer.drawableProperties = @{
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kEAGLDrawablePropertyRetainedBacking : @NO,
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kEAGLDrawablePropertyColorFormat : kEAGLColorFormatRGBA8
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};
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// Ensure layer uses native scale for proper retina resolution
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CGFloat nativeScale = [UIScreen mainScreen].nativeScale;
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eaglLayer.contentsScale = nativeScale;
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ios.glView.contentScaleFactor = nativeScale;
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ios.context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
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if (!ios.context) {
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ios.context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
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}
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if (!ios.context)
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return NO;
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[EAGLContext setCurrentContext:ios.context];
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glGenFramebuffers(1, &ios.framebuffer);
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glGenRenderbuffers(1, &ios.colorBuffer);
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glGenRenderbuffers(1, &ios.depthBuffer);
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glBindFramebuffer(GL_FRAMEBUFFER, ios.framebuffer);
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glBindRenderbuffer(GL_RENDERBUFFER, ios.colorBuffer);
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if (![ios.context renderbufferStorage:GL_RENDERBUFFER
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fromDrawable:eaglLayer]) {
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return NO;
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}
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
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GL_RENDERBUFFER, ios.colorBuffer);
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glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH,
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&ios.renderWidth);
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glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT,
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&ios.renderHeight);
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glBindRenderbuffer(GL_RENDERBUFFER, ios.depthBuffer);
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glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, ios.renderWidth,
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ios.renderHeight);
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
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GL_RENDERBUFFER, ios.depthBuffer);
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BOOL fbComplete =
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(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
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GLenum fbStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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if (fbStatus != GL_FRAMEBUFFER_COMPLETE) {
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NSLog(@"[raylib][IOS] Framebuffer incomplete: 0x%04X", fbStatus);
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} else {
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NSLog(@"[raylib][IOS] Framebuffer complete (%d x %d)", ios.renderWidth,
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ios.renderHeight);
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}
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[EAGLContext setCurrentContext:nil];
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return fbComplete;
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}
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bool ios_initialize_window(int requestedWidth, int requestedHeight,
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int *screenWidth, int *screenHeight,
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int *renderWidth, int *renderHeight, float *scaleX,
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float *scaleY) {
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(void)requestedWidth;
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(void)requestedHeight;
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__block bool ok = false;
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dispatch_sync(dispatch_get_main_queue(), ^{
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if (ios.window == nil) {
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ios.window =
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[[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
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}
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if (ios.viewController == nil) {
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ios.viewController = [[RaylibViewController alloc] init];
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}
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ios.window.rootViewController = ios.viewController;
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[ios.window makeKeyAndVisible];
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ok = ios_setup_gl();
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UIScreen *screen = [UIScreen mainScreen];
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CGSize boundsSize = screen.bounds.size;
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ios.screenWidth = (int)boundsSize.width;
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ios.screenHeight = (int)boundsSize.height;
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ios.scaleX = (float)screen.nativeScale;
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ios.scaleY = (float)screen.nativeScale;
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if (screenWidth)
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*screenWidth = ios.screenWidth;
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if (screenHeight)
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*screenHeight = ios.screenHeight;
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if (renderWidth)
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*renderWidth = ios.renderWidth;
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if (renderHeight)
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*renderHeight = ios.renderHeight;
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if (scaleX)
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*scaleX = ios.scaleX;
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if (scaleY)
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*scaleY = ios.scaleY;
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});
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ios.initialized = ok;
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return ok;
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}
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void ios_make_current_context(void) {
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if (ios.context != nil)
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[EAGLContext setCurrentContext:ios.context];
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if (ios.framebuffer != 0)
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glBindFramebuffer(GL_FRAMEBUFFER, ios.framebuffer);
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if (ios.colorBuffer != 0)
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glBindRenderbuffer(GL_RENDERBUFFER, ios.colorBuffer);
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glViewport(0, 0, ios.renderWidth, ios.renderHeight);
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// NSLog(@"[raylib][IOS] IOSMakeCurrentContext: thread=%@, fb=%u, rb=%u, "
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// @"viewport=%dx%d",
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// [NSThread currentThread], ios.framebuffer, ios.colorBuffer,
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// ios.renderWidth, ios.renderHeight);
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}
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void ios_present_frame(void) {
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if (ios.context == nil || ios.shuttingDown)
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return;
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if ([EAGLContext currentContext] != ios.context) {
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[EAGLContext setCurrentContext:ios.context];
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}
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// NSLog(@"[raylib][IOS] IOSPresentFrame: thread=%@, currentContext=%@",
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// [NSThread currentThread], [EAGLContext currentContext]);
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GLenum err = glGetError();
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if (err != GL_NO_ERROR)
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NSLog(@"[raylib][IOS] glGetError before present: 0x%04X", err);
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[ios.context presentRenderbuffer:GL_RENDERBUFFER];
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err = glGetError();
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if (err != GL_NO_ERROR)
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NSLog(@"[raylib][IOS] glGetError after present: 0x%04X", err);
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}
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void *ios_get_window_handle(void) { return (__bridge void *)ios.window; }
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void ios_get_window_metrics(int *screenWidth, int *screenHeight,
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int *renderWidth, int *renderHeight, float *scaleX,
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float *scaleY) {
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if (screenWidth)
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*screenWidth = ios.screenWidth;
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if (screenHeight)
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*screenHeight = ios.screenHeight;
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if (renderWidth)
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*renderWidth = ios.renderWidth;
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if (renderHeight)
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*renderHeight = ios.renderHeight;
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if (scaleX)
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*scaleX = ios.scaleX;
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if (scaleY)
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*scaleY = ios.scaleY;
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}
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void *ios_get_proc_address(const char *name) {
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return dlsym(RTLD_DEFAULT, name);
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}
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void ios_open_url(const char *url) {
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NSString *nsurlString = [NSString stringWithUTF8String:url];
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NSURL *nsurl = [NSURL URLWithString:nsurlString];
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if (nsurl != nil) {
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dispatch_async(dispatch_get_main_queue(), ^{
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[[UIApplication sharedApplication] openURL:nsurl
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options:@{}
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completionHandler:nil];
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});
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}
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}
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int main(int argc, char *argv[]) {
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ios.argc = argc;
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ios.argv = argv;
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@autoreleasepool {
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return UIApplicationMain(argc, argv, nil,
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NSStringFromClass([RaylibAppDelegate class]));
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}
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}
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