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/*
* Copyright (C) 2021- Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#import "OSXGLView.h"
#include "ServiceBroker.h"
#include "utils/log.h"
#import "windowing/osx/WinSystemOSX.h"
#include "system_gl.h"
@implementation OSXGLView
{
NSOpenGLContext* m_glcontext;
NSTrackingArea* m_trackingArea;
}
@synthesize glContextOwned;
- (void)SendInputEvent:(NSEvent*)nsEvent
{
CWinSystemOSX* winSystem = dynamic_cast<CWinSystemOSX*>(CServiceBroker::GetWinSystem());
if (winSystem)
{
winSystem->SendInputEvent(nsEvent);
}
}
- (id)initWithFrame:(NSRect)frameRect
{
// clang-format off
NSOpenGLPixelFormatAttribute wattrs[] = {
NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core,
NSOpenGLPFAAccelerated,
NSOpenGLPFAAlphaSize, 8,
NSOpenGLPFAColorSize, 32,
NSOpenGLPFADepthSize, 24,
NSOpenGLPFADoubleBuffer,
NSOpenGLPFANoRecovery,
0
};
// clang-format on
auto createGLContext = [&wattrs]
{
auto pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:wattrs];
return [[NSOpenGLContext alloc] initWithFormat:pixelFormat shareContext:nil];
};
self = [super initWithFrame:frameRect];
if (self)
{
m_glcontext = createGLContext();
if (!m_glcontext)
{
CLog::Log(LOGERROR,
"failed to create NSOpenGLContext, falling back to legacy OpenGL profile");
wattrs[1] = NSOpenGLProfileVersionLegacy;
m_glcontext = createGLContext();
assert(m_glcontext);
}
}
self.wantsBestResolutionOpenGLSurface = YES;
[self updateTrackingAreas];
GLint swapInterval = 1;
[m_glcontext setValues:&swapInterval forParameter:NSOpenGLContextParameterSwapInterval];
[m_glcontext makeCurrentContext];
return self;
}
- (void)dealloc
{
[NSOpenGLContext clearCurrentContext];
[m_glcontext clearDrawable];
}
- (BOOL)acceptsFirstResponder
{
return YES;
}
- (void)drawRect:(NSRect)rect
{
// whenever the view/window is resized the glContext is made current to the main (rendering) thread.
// Since kodi does its rendering on the application main thread (not the macOS rendering thread), we
// need to store this so that on a subsquent frame render we get the ownership of the gl context again.
// doing this blindly without any sort of control may stall the main thread and lead to low GUI fps
// since the glContext ownership needs to be obtained from the rendering thread (diverged from the actual
// thread doing the rendering calls).
[self setGlContextOwned:TRUE];
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
[self setOpenGLContext:m_glcontext];
// clear screen on first render
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0, 0, 0, 0);
[m_glcontext update];
});
}
- (void)updateTrackingAreas
{
if (m_trackingArea != nil)
{
[self removeTrackingArea:m_trackingArea];
}
const int opts =
(NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | NSTrackingActiveAlways);
m_trackingArea = [[NSTrackingArea alloc] initWithRect:self.bounds
options:opts
owner:self
userInfo:nil];
[self addTrackingArea:m_trackingArea];
}
- (void)mouseEntered:(NSEvent*)nsEvent
{
CWinSystemOSX* winSystem = dynamic_cast<CWinSystemOSX*>(CServiceBroker::GetWinSystem());
if (winSystem)
winSystem->signalMouseEntered();
}
#pragma mark - Input Events
- (void)mouseMoved:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)mouseDown:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)mouseDragged:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)mouseUp:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)rightMouseDown:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)rightMouseDragged:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)rightMouseUp:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)otherMouseUp:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)otherMouseDown:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)scrollWheel:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)otherMouseDragged:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)keyDown:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)keyUp:(NSEvent*)nsEvent
{
[self SendInputEvent:nsEvent];
}
- (void)mouseExited:(NSEvent*)nsEvent
{
CWinSystemOSX* winSystem = dynamic_cast<CWinSystemOSX*>(CServiceBroker::GetWinSystem());
if (winSystem)
winSystem->signalMouseExited();
}
- (CGLContextObj)getGLContextObj
{
assert(m_glcontext);
return [m_glcontext CGLContextObj];
}
- (void)Update
{
assert(m_glcontext);
[self NotifyContext];
[m_glcontext update];
}
- (void)NotifyContext
{
assert(m_glcontext);
// signals/notifies the context that this view is current (required if we render out of DrawRect)
// ownership of the context is transferred to the callee thread
[m_glcontext makeCurrentContext];
[self setGlContextOwned:FALSE];
}
- (void)FlushBuffer
{
assert(m_glcontext);
[m_glcontext makeCurrentContext];
[m_glcontext flushBuffer];
}
@end
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