mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
138 lines
2.8 KiB
Go
138 lines
2.8 KiB
Go
// 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 android ios
|
|
|
|
package ui
|
|
|
|
import (
|
|
"errors"
|
|
"runtime"
|
|
"time"
|
|
|
|
"github.com/hajimehoshi/ebiten/internal/opengl"
|
|
)
|
|
|
|
func RunMainThreadLoop(ch <-chan error) error {
|
|
return errors.New("ui: don't call this: use RunWithoutMainLoop instead of Run")
|
|
}
|
|
|
|
func Render(chError <-chan error) error {
|
|
runtime.LockOSThread()
|
|
defer runtime.UnlockOSThread()
|
|
|
|
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{}{}:
|
|
return opengl.GetContext().DoWork(chError, chRenderEnd)
|
|
case <-time.After(500 * time.Millisecond):
|
|
// This function must not be blocked. We need to break for timeout.
|
|
return nil
|
|
}
|
|
}
|
|
|
|
type userInterface struct {
|
|
width int
|
|
height int
|
|
scale float64
|
|
sizeChanged bool
|
|
}
|
|
|
|
var (
|
|
chRender = make(chan struct{})
|
|
chRenderEnd = make(chan struct{})
|
|
currentUI = &userInterface{
|
|
sizeChanged: true,
|
|
}
|
|
)
|
|
|
|
func Run(width, height int, scale float64, title string, g GraphicsContext) error {
|
|
u := currentUI
|
|
u.width = width
|
|
u.height = height
|
|
u.scale = scale
|
|
// title is ignored?
|
|
opengl.Init()
|
|
for {
|
|
if err := u.update(g); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
func (u *userInterface) update(g GraphicsContext) error {
|
|
<-chRender
|
|
defer func() {
|
|
chRenderEnd <- struct{}{}
|
|
}()
|
|
|
|
if u.sizeChanged {
|
|
// Sizing also calls GL functions
|
|
u.sizeChanged = false
|
|
g.SetSize(u.width, u.height, u.actualScreenScale())
|
|
return nil
|
|
}
|
|
if err := g.Update(); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func SetScreenSize(width, height int) bool {
|
|
// TODO: Implement
|
|
return false
|
|
}
|
|
|
|
func SetScreenScale(scale float64) bool {
|
|
// TODO: Implement
|
|
return false
|
|
}
|
|
|
|
func ScreenScale() float64 {
|
|
return currentUI.scale
|
|
}
|
|
|
|
func ScreenOffset() (float64, float64) {
|
|
return 0, 0
|
|
}
|
|
|
|
func adjustCursorPosition(x, y int) (int, int) {
|
|
return x, y
|
|
}
|
|
|
|
func SetCursorVisibility(visibility bool) {
|
|
// Do nothing
|
|
}
|
|
|
|
func SetFullscreen(fullscreen bool) bool {
|
|
// Do nothing
|
|
return false
|
|
}
|
|
|
|
func IsFullscreen() bool {
|
|
// Do nothing
|
|
return false
|
|
}
|
|
|
|
func (u *userInterface) actualScreenScale() float64 {
|
|
return u.scale * deviceScale()
|
|
}
|
|
|
|
func UpdateTouches(touches []Touch) {
|
|
currentInput.updateTouches(touches)
|
|
}
|