mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
32 lines
844 B
Go
32 lines
844 B
Go
// Copyright 2018 The Ebiten Authors
|
|
//
|
|
// 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.
|
|
|
|
package devicescale
|
|
|
|
import (
|
|
"syscall/js"
|
|
)
|
|
|
|
func impl(x, y int) float64 {
|
|
window := js.Global().Get("window")
|
|
if !window.Truthy() {
|
|
return 1
|
|
}
|
|
ratio := window.Get("devicePixelRatio").Float()
|
|
if ratio == 0 {
|
|
ratio = 1
|
|
}
|
|
return ratio
|
|
}
|