mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 13:22:19 +02:00
109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
// -*- objc -*-
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#include "ebiten_opengl_view.h"
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#include "input.h"
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void ebiten_EbitenOpenGLView_Initialized(void);
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void ebiten_EbitenOpenGLView_Updating(void);
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void ebiten_EbitenOpenGLView_InputUpdated(InputType inputType, int x, int y);
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// Reference:
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// http://developer.apple.com/library/mac/#qa/qa1385/_index.html
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// http://www.alecjacobson.com/weblog/?p=2185
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// TODO: Use NSViewController?
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static CVReturn
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EbitenDisplayLinkCallback(CVDisplayLinkRef displayLink,
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CVTimeStamp const* now,
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CVTimeStamp const* outputTime,
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CVOptionFlags flagsIn,
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CVOptionFlags* flagsOut,
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void* displayLinkContext) {
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(void)displayLink;
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(void)now;
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(void)flagsIn;
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(void)flagsOut;
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@autoreleasepool {
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EbitenOpenGLView* view = (__bridge EbitenOpenGLView*)displayLinkContext;
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return [view getFrameForTime:outputTime];
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}
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}
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@implementation EbitenOpenGLView {
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@private
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CVDisplayLinkRef displayLink_;
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}
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- (void)dealloc {
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CVDisplayLinkRelease(self->displayLink_);
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// Do not call [super dealloc] because of ARC.
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}
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- (void)prepareOpenGL {
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[super prepareOpenGL];
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NSOpenGLContext* openGLContext = [self openGLContext];
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assert(openGLContext != nil);
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GLint swapInterval = 1;
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[openGLContext setValues:&swapInterval
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forParameter:NSOpenGLCPSwapInterval];
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CVDisplayLinkCreateWithActiveCGDisplays(&self->displayLink_);
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CVDisplayLinkSetOutputCallback(self->displayLink_,
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&EbitenDisplayLinkCallback,
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(__bridge void*)self);
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CGLContextObj cglContext = (CGLContextObj)[openGLContext CGLContextObj];
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CGLPixelFormatObj cglPixelFormat =
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(CGLPixelFormatObj)[[self pixelFormat] CGLPixelFormatObj];
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CVDisplayLinkSetCurrentCGDisplayFromOpenGLContext(self->displayLink_,
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cglContext,
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cglPixelFormat);
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CVDisplayLinkStart(self->displayLink_);
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ebiten_EbitenOpenGLView_Initialized();
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}
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- (CVReturn)getFrameForTime:(CVTimeStamp const*)outputTime {
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(void)outputTime;
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NSOpenGLContext* context = [self openGLContext];
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assert(context != nil);
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[context makeCurrentContext];
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{
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CGLLockContext((CGLContextObj)[context CGLContextObj]);
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ebiten_EbitenOpenGLView_Updating();
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[context flushBuffer];
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CGLUnlockContext((CGLContextObj)[context CGLContextObj]);
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}
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return kCVReturnSuccess;
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}
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- (BOOL)isFlipped {
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return YES;
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}
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- (void)mouseDown:(NSEvent*)theEvent {
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NSPoint location = [self convertPoint:[theEvent locationInWindow]
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fromView:nil];
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int x = location.x;
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int y = location.y;
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ebiten_EbitenOpenGLView_InputUpdated(InputTypeMouseDown, x, y);
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}
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- (void)mouseUp:(NSEvent*)theEvent {
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(void)theEvent;
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NSPoint location = [self convertPoint:[theEvent locationInWindow]
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fromView:nil];
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int x = location.x;
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int y = location.y;
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ebiten_EbitenOpenGLView_InputUpdated(InputTypeMouseUp, x, y);
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}
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- (void)mouseDragged:(NSEvent*)theEvent {
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NSPoint location = [self convertPoint:[theEvent locationInWindow]
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fromView:nil];
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int x = location.x;
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int y = location.y;
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ebiten_EbitenOpenGLView_InputUpdated(InputTypeMouseDragged, x, y);
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}
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@end
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