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mobile/app/darwin.m
David Crawshaw 5217175bab go.mobile/app: darwin window drawing support for debugging
This lets you run really simple apps in a window on an OS X
machine. It's not an official target, but slightly more
productive than waiting for an apk install when working on
the sprite package.

LGTM=adg
R=golang-codereviews, adg
CC=golang-codereviews
https://golang.org/cl/147910043
2014-09-29 13:22:23 +10:00

128 lines
3.6 KiB
Objective-C

// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin
#include "_cgo_export.h"
#include <stdio.h>
#import <Cocoa/Cocoa.h>
#import <Foundation/Foundation.h>
#import <OpenGL/gl.h>
#import <QuartzCore/CVReturn.h>
#import <QuartzCore/CVBase.h>
static CVReturn displayLinkDraw(CVDisplayLinkRef displayLink, const CVTimeStamp* now, const CVTimeStamp* outputTime, CVOptionFlags flagsIn, CVOptionFlags* flagsOut, void* displayLinkContext)
{
NSOpenGLView* view = displayLinkContext;
NSOpenGLContext *currentContext = [view openGLContext];
drawgl((GLintptr)currentContext);
return kCVReturnSuccess;
}
void lockContext(GLintptr context) {
NSOpenGLContext* ctx = (NSOpenGLContext*)context;
[ctx makeCurrentContext];
CGLLockContext([ctx CGLContextObj]);
}
void unlockContext(GLintptr context) {
NSOpenGLContext* ctx = (NSOpenGLContext*)context;
[ctx flushBuffer];
CGLUnlockContext([ctx CGLContextObj]);
}
@interface MobileGLView : NSOpenGLView
{
CVDisplayLinkRef displayLink;
}
@end
@implementation MobileGLView
- (void)prepareOpenGL {
[self setWantsBestResolutionOpenGLSurface:true];
GLint swapInt = 1;
[[self openGLContext] setValues:&swapInt forParameter:NSOpenGLCPSwapInterval];
CVDisplayLinkCreateWithActiveCGDisplays(&displayLink);
CVDisplayLinkSetOutputCallback(displayLink, &displayLinkDraw, self);
CGLContextObj cglContext = [[self openGLContext] CGLContextObj];
CGLPixelFormatObj cglPixelFormat = [[self pixelFormat] CGLPixelFormatObj];
CVDisplayLinkSetCurrentCGDisplayFromOpenGLContext(displayLink, cglContext, cglPixelFormat);
CVDisplayLinkStart(displayLink);
}
- (void)reshape {
NSRect r = [self bounds];
double scale = [[NSScreen mainScreen] backingScaleFactor];
setGeom(scale, r.size.width, r.size.height);
}
- (void)mouseDown:(NSEvent *)theEvent {
NSPoint p = [theEvent locationInWindow];
eventMouseDown(p.x, p.y);
}
- (void)mouseUp:(NSEvent *)theEvent {
NSPoint p = [theEvent locationInWindow];
eventMouseEnd(p.x, p.y);
}
- (void)mouseMoved:(NSEvent *)theEvent {
NSPoint p = [theEvent locationInWindow];
eventMouseMove(p.x, p.y);
}
@end
void
runApp(void) {
[NSAutoreleasePool new];
[NSApplication sharedApplication];
[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
id menuBar = [[NSMenu new] autorelease];
id menuItem = [[NSMenuItem new] autorelease];
[menuBar addItem:menuItem];
[NSApp setMainMenu:menuBar];
id menu = [[NSMenu new] autorelease];
id name = [[NSProcessInfo processInfo] processName];
id quitMenuItem = [[[NSMenuItem alloc] initWithTitle:@"Quit"
action:@selector(terminate:) keyEquivalent:@"q"]
autorelease];
[menu addItem:quitMenuItem];
[menuItem setSubmenu:menu];
NSRect rect = NSMakeRect(0, 0, 200, 200);
id window = [[[NSWindow alloc] initWithContentRect:rect
styleMask:NSTitledWindowMask
backing:NSBackingStoreBuffered
defer:NO]
autorelease];
[window setStyleMask:[window styleMask] | NSResizableWindowMask];
[window cascadeTopLeftFromPoint:NSMakePoint(20,20)];
[window makeKeyAndOrderFront:nil];
[window setTitle:name];
NSOpenGLPixelFormatAttribute attr[] = {
NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core,
NSOpenGLPFAColorSize, 24,
NSOpenGLPFAAlphaSize, 8,
NSOpenGLPFADepthSize, 16,
NSOpenGLPFAAccelerated,
NSOpenGLPFADoubleBuffer,
0
};
id pixFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr];
id view = [[MobileGLView alloc] initWithFrame:rect pixelFormat:pixFormat];
[window setContentView:view];
[NSApp activateIgnoringOtherApps:YES];
[NSApp run];
}