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// SPDX-License-Identifier: Unlicense OR MIT
// +build darwin,ios
@import UIKit;
@import OpenGLES;
#include "_cgo_export.h"
int gio_renderbufferStorage(CFTypeRef ctxRef, CFTypeRef layerRef, GLenum buffer) {
EAGLContext *ctx = (__bridge EAGLContext *)ctxRef;
CAEAGLLayer *layer = (__bridge CAEAGLLayer *)layerRef;
return (int)[ctx renderbufferStorage:buffer fromDrawable:layer];
}
int gio_presentRenderbuffer(CFTypeRef ctxRef, GLenum buffer) {
EAGLContext *ctx = (__bridge EAGLContext *)ctxRef;
return (int)[ctx presentRenderbuffer:buffer];
}
int gio_makeCurrent(CFTypeRef ctxRef) {
EAGLContext *ctx = (__bridge EAGLContext *)ctxRef;
return (int)[EAGLContext setCurrentContext:ctx];
}
CFTypeRef gio_createContext(void) {
EAGLContext *ctx = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
if (ctx == nil) {
return nil;
}
return CFBridgingRetain(ctx);
}
CFTypeRef gio_createGLLayer(void) {
CAEAGLLayer *layer = [[CAEAGLLayer layer] init];
if (layer == nil) {
return nil;
}
layer.drawableProperties = @{kEAGLDrawablePropertyColorFormat: kEAGLColorFormatSRGBA8};
layer.opaque = YES;
layer.anchorPoint = CGPointMake(0, 0);
return CFBridgingRetain(layer);
}
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