ebiten/internal/ui/ui_ios.go

69 lines
2.0 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.
//go:build ios
// +build ios
package ui
import (
"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 {
gomobileBuild bool
}
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 (*graphicsDriverCreatorImpl) newOpenGL() (graphicsdriver.Graphics, error) {
return opengl.NewGraphics()
}
func (*graphicsDriverCreatorImpl) newDirectX() (graphicsdriver.Graphics, error) {
return nil, nil
}
func (g *graphicsDriverCreatorImpl) newMetal() (graphicsdriver.Graphics, error) {
if g.gomobileBuild {
return nil, fmt.Errorf("ui: Metal is not available with gomobile-build")
}
return metal.NewGraphics()
}
func SetUIView(uiview uintptr) {
// This function should be called only when the graphics library is Metal.
if g, ok := theUI.graphicsDriver.(interface{ SetUIView(uintptr) }); ok {
g.SetUIView(uiview)
}
}
func IsGL() bool {
return theUI.graphicsDriver.IsGL()
}