mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-26 03:38:55 +01:00
99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
// Copyright 2022 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 ui
|
|
|
|
// #cgo CFLAGS: -x objective-c
|
|
// #cgo LDFLAGS: -framework Foundation -framework UIKit
|
|
//
|
|
// #import <UIKit/UIKit.h>
|
|
//
|
|
// static double devicePixelRatio() {
|
|
// return [[UIScreen mainScreen] nativeScale];
|
|
// }
|
|
import "C"
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/metal"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/opengl"
|
|
)
|
|
|
|
type graphicsDriverCreatorImpl struct {
|
|
}
|
|
|
|
func (g *graphicsDriverCreatorImpl) newAuto() (graphicsdriver.Graphics, GraphicsLibrary, error) {
|
|
m, err1 := g.newMetal()
|
|
if err1 == nil {
|
|
return m, GraphicsLibraryMetal, nil
|
|
}
|
|
o, err2 := g.newOpenGL()
|
|
if err2 == nil {
|
|
return o, GraphicsLibraryMetal, nil
|
|
}
|
|
return nil, GraphicsLibraryUnknown, fmt.Errorf("ui: failed to choose graphics drivers: Metal: %v, OpenGL: %v", err1, err2)
|
|
}
|
|
|
|
func (g *graphicsDriverCreatorImpl) newOpenGL() (graphicsdriver.Graphics, error) {
|
|
return opengl.NewGraphics()
|
|
}
|
|
|
|
func (*graphicsDriverCreatorImpl) newDirectX() (graphicsdriver.Graphics, error) {
|
|
return nil, errors.New("ui: DirectX is not supported in this environment")
|
|
}
|
|
|
|
func (g *graphicsDriverCreatorImpl) newMetal() (graphicsdriver.Graphics, error) {
|
|
return metal.NewGraphics()
|
|
}
|
|
|
|
func (*graphicsDriverCreatorImpl) newPlayStation5() (graphicsdriver.Graphics, error) {
|
|
return nil, errors.New("ui: PlayStation 5 is not supported in this environment")
|
|
}
|
|
|
|
func (u *UserInterface) SetUIView(uiview uintptr) error {
|
|
select {
|
|
case err := <-u.errCh:
|
|
return err
|
|
case <-u.graphicsLibraryInitCh:
|
|
}
|
|
|
|
// This function should be called only when the graphics library is Metal.
|
|
if g, ok := u.graphicsDriver.(interface{ SetUIView(uintptr) }); ok {
|
|
g.SetUIView(uiview)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (u *UserInterface) IsGL() (bool, error) {
|
|
select {
|
|
case err := <-u.errCh:
|
|
return false, err
|
|
case <-u.graphicsLibraryInitCh:
|
|
}
|
|
|
|
return u.GraphicsLibrary() == GraphicsLibraryOpenGL, nil
|
|
}
|
|
|
|
func deviceScaleFactorImpl() float64 {
|
|
// TODO: Can this be called from non-main threads?
|
|
return float64(C.devicePixelRatio())
|
|
}
|
|
|
|
func dipToNativePixels(x float64, scale float64) float64 {
|
|
return x
|
|
}
|