ebiten/internal/ui/ui_mac.go

// Copyright 2016 Hajime Hoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// +build darwin,!arm,!arm64
// +build !js
// +build !ios

package ui

// #cgo CFLAGS: -x objective-c
// #cgo LDFLAGS: -framework AppKit
//
// #import <AppKit/AppKit.h>
//
// static float scale() {
//   NSScreen* primary = [[NSScreen screens] firstObject];
//   return [primary backingScaleFactor];
// }
import "C"

func deviceScale() float64 {
	return float64(C.scale())
}

func glfwScale() float64 {
	return 1
}