ebiten/internal/ui/ui_mobile.go

132 lines
2.8 KiB
Go
Raw Normal View History

// 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.
2016-06-15 17:49:22 +02:00
// +build android ios darwin,arm darwin,arm64
package ui
import (
2016-05-19 16:37:58 +02:00
"errors"
2016-06-30 17:44:15 +02:00
"runtime"
"time"
2016-05-19 16:37:58 +02:00
"github.com/hajimehoshi/ebiten/internal/graphics/opengl"
)
2016-07-23 13:25:52 +02:00
var glContext *opengl.Context
func GLContext() *opengl.Context {
if glContext != nil {
return glContext
}
var err error
glContext, err = opengl.NewContext()
if err != nil {
panic(err)
}
return glContext
}
func Main() error {
2016-05-19 16:37:58 +02:00
return errors.New("ui: don't call this: use RunWithoutMainLoop instead of Run")
}
func Render(chError <-chan error) error {
2016-06-30 17:44:15 +02:00
runtime.LockOSThread()
defer runtime.UnlockOSThread()
2016-05-19 16:37:58 +02:00
if chError == nil {
return errors.New("ui: chError must not be nil")
}
// TODO: Check this is called on the rendering thread
select {
case chRender <- struct{}{}:
2016-07-03 18:25:35 +02:00
return glContext.DoWork(chError, chRenderEnd)
case <-time.After(500 * time.Millisecond):
2016-06-10 17:56:29 +02:00
// This function must not be blocked. We need to break for timeout.
return nil
}
}
type userInterface struct {
2016-06-18 17:55:24 +02:00
width int
height int
2016-06-18 19:59:17 +02:00
scale float64
2016-06-18 17:55:24 +02:00
sizeChanged bool
}
2016-05-19 16:37:58 +02:00
var (
chRender = make(chan struct{})
chRenderEnd = make(chan struct{})
currentUI = &userInterface{
2016-05-19 16:37:58 +02:00
sizeChanged: true,
}
)
func CurrentUI() UserInterface {
2016-05-19 16:37:58 +02:00
return currentUI
}
2016-06-18 19:59:17 +02:00
func (u *userInterface) Start(width, height int, scale float64, title string) error {
2016-05-19 16:37:58 +02:00
u.width = width
u.height = height
u.scale = scale
// title is ignored?
return nil
}
func (u *userInterface) Terminate() error {
return nil
}
func (u *userInterface) Update() (interface{}, error) {
2016-05-19 16:37:58 +02:00
if u.sizeChanged {
u.sizeChanged = false
e := ScreenSizeEvent{
Width: u.width,
Height: u.height,
ActualScale: u.actualScreenScale(),
}
return e, nil
}
2016-06-12 16:54:36 +02:00
<-chRender
return RenderEvent{chRenderEnd}, nil
}
func (u *userInterface) SwapBuffers() error {
return nil
}
func (u *userInterface) SetScreenSize(width, height int) bool {
2016-05-19 16:37:58 +02:00
// TODO: Implement
return false
}
2016-06-18 19:59:17 +02:00
func (u *userInterface) SetScreenScale(scale float64) bool {
2016-05-19 16:37:58 +02:00
// TODO: Implement
return false
}
2016-06-18 19:59:17 +02:00
func (u *userInterface) ScreenScale() float64 {
2016-05-19 16:37:58 +02:00
return u.scale
}
2016-06-18 19:59:17 +02:00
func (u *userInterface) actualScreenScale() float64 {
return u.scale * deviceScale()
}
2016-05-22 19:06:01 +02:00
2016-05-28 16:15:28 +02:00
func UpdateTouches(touches []Touch) {
currentInput.updateTouches(touches)
2016-05-22 19:06:01 +02:00
}