ebiten/internal/ui/ui_ios.go

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// 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 ios darwin,arm darwin,arm64
package ui
// #cgo CFLAGS: -x objective-c
// #cgo LDFLAGS: -framework Foundation -framework UIKit
//
// #import <UIKit/UIKit.h>
//
// static int devicePixelRatio() {
// return [[UIScreen mainScreen] scale];
// }
import "C"
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func deviceScale() float64 {
return float64(C.devicePixelRatio())
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}