ebiten/ui/cocoa/ui.go
2013-12-18 18:05:28 +09:00

103 lines
2.1 KiB
Go

package cocoa
// #cgo CFLAGS: -x objective-c
// #cgo LDFLAGS: -framework Cocoa -framework OpenGL
//
// void StartApplication(void);
// void PollEvents(void);
//
import "C"
import (
"github.com/hajimehoshi/go-ebiten/graphics"
"github.com/hajimehoshi/go-ebiten/graphics/opengl"
"github.com/hajimehoshi/go-ebiten/ui"
"image"
)
type cocoaUI struct {
textureFactory *textureFactory
textureFactoryEvents chan interface{}
graphicsDevice *opengl.Device
}
var currentUI *cocoaUI
func getCurrentUI() *cocoaUI {
if currentUI != nil {
return currentUI
}
currentUI = &cocoaUI{}
C.StartApplication()
currentUI.textureFactory = runTextureFactory()
currentUI.textureFactory.useGLContext(func() {
currentUI.graphicsDevice = opengl.NewDevice()
})
return currentUI
}
func UI() ui.UI {
return getCurrentUI()
}
func TextureFactory() graphics.TextureFactory {
return getCurrentUI()
}
func (u *cocoaUI) CreateWindow(width, height, scale int, title string) ui.Window {
return u.textureFactory.createWindow(u, width, height, scale, title)
}
func (u *cocoaUI) PollEvents() {
C.PollEvents()
}
func (u *cocoaUI) Events() <-chan interface{} {
if u.textureFactoryEvents != nil {
return u.textureFactoryEvents
}
u.textureFactoryEvents = make(chan interface{})
return u.textureFactoryEvents
}
func (u *cocoaUI) CreateTexture(tag interface{}, img image.Image, filter graphics.Filter) {
go func() {
var id graphics.TextureId
var err error
u.textureFactory.useGLContext(func() {
id, err = u.graphicsDevice.CreateTexture(img, filter)
})
if u.textureFactoryEvents == nil {
return
}
e := graphics.TextureCreatedEvent{
Tag: tag,
Id: id,
Error: err,
}
u.textureFactoryEvents <- e
}()
}
func (u *cocoaUI) CreateRenderTarget(tag interface{}, width, height int) {
go func() {
var id graphics.RenderTargetId
var err error
u.textureFactory.useGLContext(func() {
id, err = u.graphicsDevice.CreateRenderTarget(width, height)
})
if u.textureFactoryEvents == nil {
return
}
e := graphics.RenderTargetCreatedEvent{
Tag: tag,
Id: id,
Error: err,
}
u.textureFactoryEvents <- e
}()
}