add iOS support

PanoPainter/GameViewController.m

@@ -0,0 +1,119 @@
+//
+//  GameViewController.m
+//  PanoPainter
+//
+//  Created by Omar Mohamed Ali Mudhir on 07/05/17.
+//  Copyright © 2017 Omar Mohamed Ali Mudhir. All rights reserved.
+//
+
+#include "pch.h"
+#import "GameViewController.h"
+#import <OpenGLES/ES3/glext.h>
+#include "app.h"
+
+@interface GameViewController () {
+}
+@property (strong, nonatomic) EAGLContext *context;
+
+- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator;
+- (void)setupGL;
+- (void)tearDownGL;
+//- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event;
+- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event;
+@end
+
+@implementation GameViewController
+
+- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
+{
+    UITouch *touch = [[event allTouches] anyObject];
+    CGPoint touchLocation = [touch locationInView:self.view];
+    float scale = self.view.contentScaleFactor;
+    App::I.mouse_move(touchLocation.x * scale, touchLocation.y * scale);
+}
+
+- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
+{
+    App::I.resize(size.width * self.view.contentScaleFactor,
+                  size.height * self.view.contentScaleFactor);
+}
+
+- (void)viewDidLoad
+{
+    [super viewDidLoad];
+    App::I.initLog();
+
+    
+    self.context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
+
+    if (!self.context) {
+        NSLog(@"Failed to create ES context");
+    }
+    
+    GLKView *view = (GLKView *)self.view;
+    view.context = self.context;
+    view.drawableDepthFormat = GLKViewDrawableDepthFormat24;
+
+    App::I.width = view.frame.size.width * view.contentScaleFactor;
+    App::I.height = view.frame.size.height * view.contentScaleFactor;
+    
+    [self setupGL];
+}
+
+- (void)dealloc
+{    
+    [self tearDownGL];
+    
+    if ([EAGLContext currentContext] == self.context) {
+        [EAGLContext setCurrentContext:nil];
+    }
+}
+
+- (void)didReceiveMemoryWarning
+{
+    [super didReceiveMemoryWarning];
+
+    if ([self isViewLoaded] && ([[self view] window] == nil)) {
+        self.view = nil;
+        
+        [self tearDownGL];
+        
+        if ([EAGLContext currentContext] == self.context) {
+            [EAGLContext setCurrentContext:nil];
+        }
+        self.context = nil;
+    }
+
+    // Dispose of any resources that can be recreated.
+}
+
+- (BOOL)prefersStatusBarHidden {
+    return YES;
+}
+
+- (void)setupGL
+{
+    [EAGLContext setCurrentContext:self.context];
+    App::I.init();
+}
+
+- (void)tearDownGL
+{
+    [EAGLContext setCurrentContext:self.context];
+    
+}
+
+#pragma mark - GLKView and GLKViewController delegate methods
+
+- (void)update
+{
+    
+}
+
+- (void)glkView:(GLKView *)view drawInRect:(CGRect)rect
+{
+    App::I.clear();
+    App::I.update(0);
+}
+
+@end