121 lines
3.5 KiB
Plaintext
121 lines
3.5 KiB
Plaintext
/*
|
|
* DemoViewController.m
|
|
*
|
|
* Copyright (c) 2014-2018 The Brenwill Workshop Ltd. (http://www.brenwill.com)
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#import "DemoViewController.h"
|
|
#import <QuartzCore/CAMetalLayer.h>
|
|
|
|
#include <MoltenVK/mvk_vulkan.h>
|
|
|
|
#include "cube.cpp"
|
|
|
|
#pragma mark -
|
|
#pragma mark DemoViewController
|
|
|
|
@implementation DemoViewController {
|
|
CVDisplayLinkRef _displayLink;
|
|
struct Demo demo;
|
|
NSTimer* _timer;
|
|
}
|
|
|
|
- (void)dealloc {
|
|
[self quit];
|
|
[super dealloc];
|
|
}
|
|
|
|
- (void)quit {
|
|
CVDisplayLinkRelease(_displayLink);
|
|
demo.cleanup();
|
|
}
|
|
|
|
/** Since this is a single-view app, initialize Vulkan during view loading. */
|
|
- (void)viewDidLoad {
|
|
[super viewDidLoad];
|
|
|
|
self.view.wantsLayer = YES; // Back the view with a layer created by the makeBackingLayer method.
|
|
|
|
// 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;
|
|
}
|
|
|
|
demo_main(demo, self.view.layer, args.count, argv);
|
|
|
|
// Monitor the rendering loop for a quit condition
|
|
_timer = [NSTimer scheduledTimerWithTimeInterval: 0.2
|
|
target: self
|
|
selector: @selector(onTick:)
|
|
userInfo: self
|
|
repeats: YES];
|
|
|
|
// Start the rendering loop
|
|
CVDisplayLinkCreateWithActiveCGDisplays(&_displayLink);
|
|
CVDisplayLinkSetOutputCallback(_displayLink, &DisplayLinkCallback, &demo);
|
|
CVDisplayLinkStart(_displayLink);
|
|
}
|
|
|
|
// Close the window if the demo is in a Quit state
|
|
-(void)onTick:(NSTimer*)timer {
|
|
if (demo.quit) {
|
|
[[[self view] window] close];
|
|
}
|
|
}
|
|
|
|
#pragma mark Display loop callback function
|
|
|
|
/** Rendering loop callback function for use with a CVDisplayLink. */
|
|
static CVReturn DisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTimeStamp* now,
|
|
const CVTimeStamp* outputTime,
|
|
CVOptionFlags flagsIn, CVOptionFlags* flagsOut, void* target) {
|
|
struct Demo* demo = (struct Demo*)target;
|
|
demo->run();
|
|
if (demo->quit) {
|
|
CVDisplayLinkStop(displayLink);
|
|
}
|
|
return kCVReturnSuccess;
|
|
}
|
|
|
|
@end
|
|
|
|
#pragma mark -
|
|
#pragma mark DemoView
|
|
|
|
@implementation DemoView
|
|
|
|
/** Indicates that the view wants to draw using the backing layer instead of using drawRect:. */
|
|
- (BOOL)wantsUpdateLayer {
|
|
return YES;
|
|
}
|
|
|
|
/** Returns a Metal-compatible layer. */
|
|
+ (Class)layerClass {
|
|
return [CAMetalLayer class];
|
|
}
|
|
|
|
/** If the wantsLayer property is set to YES, this method will be invoked to return a layer instance. */
|
|
- (CALayer*)makeBackingLayer {
|
|
CALayer* layer = [self.class.layerClass layer];
|
|
CGSize viewScale = [self convertSizeToBacking:CGSizeMake(1.0, 1.0)];
|
|
layer.contentsScale = MIN(viewScale.width, viewScale.height);
|
|
return layer;
|
|
}
|
|
|
|
@end
|