forked from joejulian/gio
Elias Naur
2059862416
The only reason for separate files is Objective-C callbacks into Go, or when the Go side is common, yet the Objective-C side differs from macOS to iOS. Signed-off-by: Elias Naur <mail@eliasnaur.com>
42 lines
1.2 KiB
Objective-C
42 lines
1.2 KiB
Objective-C
// SPDX-License-Identifier: Unlicense OR MIT
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// +build darwin,!ios
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@import AppKit;
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@import OpenGL;
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@import OpenGL.GL;
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@import OpenGL.GL3;
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#include <CoreFoundation/CoreFoundation.h>
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#include "_cgo_export.h"
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CFTypeRef gio_headless_newContext(void) {
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NSOpenGLPixelFormatAttribute attr[] = {
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NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core,
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NSOpenGLPFAColorSize, 24,
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NSOpenGLPFAAccelerated,
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// Opt-in to automatic GPU switching. CGL-only property.
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kCGLPFASupportsAutomaticGraphicsSwitching,
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NSOpenGLPFAAllowOfflineRenderers,
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0
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};
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NSOpenGLPixelFormat *pixFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr];
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if (pixFormat == nil) {
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return NULL;
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}
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NSOpenGLContext *ctx = [[NSOpenGLContext alloc] initWithFormat:pixFormat shareContext:nil];
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return CFBridgingRetain(ctx);
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}
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void gio_headless_clearCurrentContext(CFTypeRef ctxRef) {
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NSOpenGLContext *ctx = (__bridge NSOpenGLContext *)ctxRef;
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CGLUnlockContext([ctx CGLContextObj]);
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[NSOpenGLContext clearCurrentContext];
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}
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void gio_headless_makeCurrentContext(CFTypeRef ctxRef) {
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NSOpenGLContext *ctx = (__bridge NSOpenGLContext *)ctxRef;
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[ctx makeCurrentContext];
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CGLLockContext([ctx CGLContextObj]);
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}
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