izapple2/apple2sdl/main.go

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package main
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import (
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"unsafe"
"github.com/ivanizag/apple2"
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"github.com/veandco/go-sdl2/sdl"
)
func main() {
a := apple2.MainApple()
SDLRun(a)
}
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// SDLRun starts the Apple2 emulator on SDL
func SDLRun(a *apple2.Apple2) {
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window, renderer, err := sdl.CreateWindowAndRenderer(4*40*7, 4*24*8,
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sdl.WINDOW_SHOWN)
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if err != nil {
panic("Failed to create window")
}
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window.SetResizable(true)
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defer window.Destroy()
defer renderer.Destroy()
window.SetTitle(a.Name)
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kp := newSDLKeyBoard(a)
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a.SetKeyboardProvider(kp)
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s := newSDLSpeaker()
s.start()
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a.SetSpeakerProvider(s)
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j := newSDLJoysticks()
a.SetJoysticksProvider(j)
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go a.Run()
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running := true
for running {
for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
switch t := event.(type) {
case *sdl.QuitEvent:
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a.SendCommand(apple2.CommandKill)
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running = false
case *sdl.KeyboardEvent:
kp.putKey(t)
j.putKey(t)
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case *sdl.TextInputEvent:
kp.putText(t)
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case *sdl.JoyAxisEvent:
j.putAxisEvent(t)
case *sdl.JoyButtonEvent:
j.putButtonEvent(t)
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}
}
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img := apple2.Snapshot(a)
if img != nil {
surface, err := sdl.CreateRGBSurfaceFrom(unsafe.Pointer(&img.Pix[0]),
int32(img.Bounds().Dx()), int32(img.Bounds().Dy()),
32, 4*img.Bounds().Dx(),
0x0000ff, 0x0000ff00, 0x00ff0000, 0xff000000)
// Valid for little endian. Should we reverse for big endian?
// 0xff000000, 0x00ff0000, 0x0000ff00, 0x000000ff)
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if err != nil {
panic(err)
}
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texture, err := renderer.CreateTextureFromSurface(surface)
if err != nil {
panic(err)
}
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renderer.Clear()
w, h := window.GetSize()
renderer.Copy(texture, nil, &sdl.Rect{X: 0, Y: 0, W: w, H: h})
renderer.Present()
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surface.Free()
texture.Destroy()
}
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sdl.Delay(1000 / 30)
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}
}