blob: c7c5fcdfea6351e51a93b67009ae530fa70c84ab [file] [log] [blame]
// 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 <pthread.h>
#include <stdio.h>
#import <Cocoa/Cocoa.h>
#import <Foundation/Foundation.h>
#import <OpenGL/gl3.h>
void makeCurrentContext(GLintptr context) {
NSOpenGLContext* ctx = (NSOpenGLContext*)context;
[ctx makeCurrentContext];
}
uint64 threadID() {
uint64 id;
if (pthread_threadid_np(pthread_self(), &id)) {
abort();
}
return id;
}
@interface MobileGLView : NSOpenGLView<NSApplicationDelegate, NSWindowDelegate>
{
}
@end
@implementation MobileGLView
- (void)prepareOpenGL {
[self setWantsBestResolutionOpenGLSurface:YES];
GLint swapInt = 1;
[[self openGLContext] setValues:&swapInt forParameter:NSOpenGLCPSwapInterval];
// Using attribute arrays in OpenGL 3.3 requires the use of a VBA.
// But VBAs don't exist in ES 2. So we bind a default one.
GLuint vba;
glGenVertexArrays(1, &vba);
glBindVertexArray(vba);
startloop((GLintptr)[self openGLContext]);
}
- (void)reshape {
[super reshape];
// Calculate screen PPI.
//
// Note that the backingScaleFactor converts from logical
// pixels to actual pixels, but both of these units vary
// independently from real world size. E.g.
//
// 13" Retina Macbook Pro, 2560x1600, 227ppi, backingScaleFactor=2, scale=3.15
// 15" Retina Macbook Pro, 2880x1800, 220ppi, backingScaleFactor=2, scale=3.06
// 27" iMac, 2560x1440, 109ppi, backingScaleFactor=1, scale=1.51
// 27" Retina iMac, 5120x2880, 218ppi, backingScaleFactor=2, scale=3.03
NSScreen *screen = [NSScreen mainScreen];
double screenPixW = [screen frame].size.width * [screen backingScaleFactor];
CGDirectDisplayID display = (CGDirectDisplayID)[[[screen deviceDescription] valueForKey:@"NSScreenNumber"] intValue];
CGSize screenSizeMM = CGDisplayScreenSize(display); // in millimeters
float ppi = 25.4 * screenPixW / screenSizeMM.width;
float pixelsPerPt = ppi/72.0;
// The width and height reported to the geom package are the
// bounds of the OpenGL view. Several steps are necessary.
// First, [self bounds] gives us the number of logical pixels
// in the view. Multiplying this by the backingScaleFactor
// gives us the number of actual pixels.
NSRect r = [self bounds];
int w = r.size.width * [screen backingScaleFactor];
int h = r.size.height * [screen backingScaleFactor];
setGeom(pixelsPerPt, w, h);
}
- (void)drawRect:(NSRect)theRect {
// Called during resize. This gets rid of flicker when resizing.
drawgl();
}
- (void)mouseDown:(NSEvent *)theEvent {
double scale = [[NSScreen mainScreen] backingScaleFactor];
NSPoint p = [theEvent locationInWindow];
eventMouseDown(p.x * scale, p.y * scale);
}
- (void)mouseUp:(NSEvent *)theEvent {
double scale = [[NSScreen mainScreen] backingScaleFactor];
NSPoint p = [theEvent locationInWindow];
eventMouseEnd(p.x * scale, p.y * scale);
}
- (void)mouseDragged:(NSEvent *)theEvent {
double scale = [[NSScreen mainScreen] backingScaleFactor];
NSPoint p = [theEvent locationInWindow];
eventMouseDragged(p.x * scale, p.y * scale);
}
- (void)windowDidBecomeKey:(NSNotification *)notification {
lifecycleFocused();
}
- (void)windowDidResignKey:(NSNotification *)notification {
if (![NSApp isHidden]) {
lifecycleVisible();
}
}
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
lifecycleAlive();
[[NSRunningApplication currentApplication] activateWithOptions:(NSApplicationActivateAllWindows | NSApplicationActivateIgnoringOtherApps)];
[self.window makeKeyAndOrderFront:self];
lifecycleVisible();
}
- (void)applicationWillTerminate:(NSNotification *)aNotification {
lifecycleDead();
}
- (void)applicationDidHide:(NSNotification *)aNotification {
lifecycleAlive();
}
- (void)applicationWillUnhide:(NSNotification *)notification {
lifecycleVisible();
}
- (void)windowWillClose:(NSNotification *)notification {
lifecycleAlive();
}
@end
@interface MobileResponder : NSResponder
{
}
@end
@implementation MobileResponder
- (void)keyDown:(NSEvent *)theEvent {
[self key:theEvent];
}
- (void)keyUp:(NSEvent *)theEvent {
[self key:theEvent];
}
- (void)key:(NSEvent *)theEvent {
NSRange range = [theEvent.characters rangeOfComposedCharacterSequenceAtIndex:0];
uint8_t buf[4] = {0, 0, 0, 0};
if (![theEvent.characters getBytes:buf
maxLength:4
usedLength:nil
encoding:NSUTF32LittleEndianStringEncoding
options:NSStringEncodingConversionAllowLossy
range:range
remainingRange:nil]) {
NSLog(@"failed to read key event %@", theEvent);
return;
}
uint32_t rune = (uint32_t)buf[0]<<0 | (uint32_t)buf[1]<<8 | (uint32_t)buf[2]<<16 | (uint32_t)buf[3]<<24;
uint8_t direction;
if ([theEvent isARepeat]) {
direction = 0;
} else if (theEvent.type == NSKeyDown) {
direction = 1;
} else {
direction = 2;
}
eventKey((int32_t)rune, direction, theEvent.keyCode, theEvent.modifierFlags);
}
- (void)flagsChanged:(NSEvent *)theEvent {
eventFlags(theEvent.modifierFlags);
}
@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 hideMenuItem = [[[NSMenuItem alloc] initWithTitle:@"Hide"
action:@selector(hide:) keyEquivalent:@"h"]
autorelease];
[menu addItem:hideMenuItem];
id quitMenuItem = [[[NSMenuItem alloc] initWithTitle:@"Quit"
action:@selector(terminate:) keyEquivalent:@"q"]
autorelease];
[menu addItem:quitMenuItem];
[menuItem setSubmenu:menu];
NSRect rect = NSMakeRect(0, 0, 400, 400);
NSWindow* window = [[[NSWindow alloc] initWithContentRect:rect
styleMask:NSTitledWindowMask
backing:NSBackingStoreBuffered
defer:NO]
autorelease];
window.styleMask |= NSResizableWindowMask;
window.styleMask |= NSMiniaturizableWindowMask ;
window.styleMask |= NSClosableWindowMask;
window.title = name;
[window cascadeTopLeftFromPoint:NSMakePoint(20,20)];
NSOpenGLPixelFormatAttribute attr[] = {
NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core,
NSOpenGLPFAColorSize, 24,
NSOpenGLPFAAlphaSize, 8,
NSOpenGLPFADepthSize, 16,
NSOpenGLPFAAccelerated,
NSOpenGLPFADoubleBuffer,
NSOpenGLPFAAllowOfflineRenderers,
0
};
id pixFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr];
MobileGLView* view = [[MobileGLView alloc] initWithFrame:rect pixelFormat:pixFormat];
[window setContentView:view];
[window setDelegate:view];
[NSApp setDelegate:view];
window.nextResponder = [[[MobileResponder alloc] init] autorelease];
[NSApp run];
}
void stopApp(void) {
[NSApp terminate:nil];
}