func main() {
	if sdl.Init(sdl.INIT_VIDEO) != 0 {
		fmt.Println(sdl.GetError())
		return
	}
	defer sdl.Quit()

	if sdl.SetVideoMode(200, 200, 32, 0) == nil {
		fmt.Println(sdl.GetError())
		return
	}

	for e := new(sdl.Event); e.Wait() && e.Type != sdl.QUIT; {
	}
}
Exemple #2
0
func main() {

	flag.Parse()

	var done bool
	var keys []uint8

	sdl.Init(sdl.INIT_VIDEO)

	var screen = sdl.SetVideoMode(640, 480, 16, sdl.OPENGL|sdl.RESIZABLE)

	if screen == nil {
		sdl.Quit()
		panic("Couldn't set 300x300 GL video mode: " + sdl.GetError() + "\n")
	}

	sdl.WM_SetCaption("Gears", "gears")

	init_()
	reshape(int(screen.W), int(screen.H))
	done = false
	for !done {
		var event sdl.Event

		idle()
		for event.Poll() {
			switch event.Type {
			case sdl.VIDEORESIZE:
				screen = sdl.SetVideoMode(int(event.Resize().W), int(event.Resize().H), 16,
					sdl.OPENGL|sdl.RESIZABLE)
				if screen != nil {
					reshape(int(screen.W), int(screen.H))
				} else {
					panic("we couldn't set the new video mode??")
				}
				break

			case sdl.QUIT:
				done = true
				break
			}
		}
		keys = sdl.GetKeyState()

		handleKeyPress(keys)
		if keys[sdl.K_ESCAPE] != 0 {
			done = true
		}

		draw()
	}
	sdl.Quit()
	return

}
Exemple #3
0
func (engine *SDLEngine) sdlRenderLoop() {
	runtime.LockOSThread()
	for {
		var event sdl.Event
		for event.Poll() {
			switch event.Type {
			case sdl.MOUSEMOTION:
				m := event.MouseMotion()
				engine.mouseEventChan <- MouseEvent{int32(m.X), int32(m.Y), int32(m.Xrel), int32(m.Yrel), int32(m.State)}
			case sdl.KEYDOWN, sdl.KEYUP:
				k := event.Keyboard()
				engine.keyEventChan <- KeyEvent{uint32(k.Keysym.Sym), uint32(k.Type)}
			case sdl.QUIT:
				engine.systemEventChan <- SystemEvent{SystemQuit}
				return
			}
		}
		engine.frameEventChan <- FrameEvent{0.0}
	}
	runtime.UnlockOSThread()
}
Exemple #4
0
func main() {
	runtime.LockOSThread()
	flag.Parse()
	buildPalette()
	sdl.Init(sdl.INIT_VIDEO)
	defer sdl.Quit()

	sdl.GL_SetAttribute(sdl.GL_SWAP_CONTROL, 1)

	if sdl.SetVideoMode(512, 512, 32, sdl.OPENGL) == nil {
		panic("sdl error")
	}

	if gl.Init() != 0 {
		panic("gl error")
	}

	sdl.WM_SetCaption("Gomandel", "Gomandel")

	gl.Enable(gl.TEXTURE_2D)
	gl.Viewport(0, 0, 512, 512)
	gl.MatrixMode(gl.PROJECTION)
	gl.LoadIdentity()
	gl.Ortho(0, 512, 512, 0, -1, 1)

	gl.ClearColor(0, 0, 0, 0)

	//-----------------------------------------------------------------------------
	var dndDragging bool = false
	var dndStart Point
	var dndEnd Point
	var tex gl.Texture
	var tc TexCoords
	var lastProgress int
	initialRect := Rect{-1.5, -1.5, 3, 3}
	rect := initialRect

	rc := new(MandelbrotRequest)
	rc.MakeRequest(512, 512, rect)
	rc.WaitFor(Small, &tex, &tc)

	running := true
	e := new(sdl.Event)
	for running {
		for e.Poll() {
			switch e.Type {
			case sdl.QUIT:
				running = false
			case sdl.MOUSEBUTTONDOWN:
				dndDragging = true
				sdl.GetMouseState(&dndStart.X, &dndStart.Y)
				dndEnd = dndStart
			case sdl.MOUSEBUTTONUP:
				dndDragging = false
				sdl.GetMouseState(&dndEnd.X, &dndEnd.Y)
				if e.MouseButton().Button == 3 {
					rect = initialRect
				} else {
					rect = rectFromSelection(dndStart, dndEnd, 512, 512, rect)
					tc = texCoordsFromSelection(dndStart, dndEnd, 512, 512, tc)
				}

				// make request
				rc.MakeRequest(512, 512, rect)
			case sdl.MOUSEMOTION:
				if dndDragging {
					sdl.GetMouseState(&dndEnd.X, &dndEnd.Y)
				}
			}
		}

		// if we're waiting for a result, check if it's ready
		p := rc.Update(&tex, &tc)
		if p != -1 {
			lastProgress = p
		}

		gl.Clear(gl.COLOR_BUFFER_BIT)
		tex.Bind(gl.TEXTURE_2D)
		drawQuad(0, 0, 512, 512, tc.TX, tc.TY, tc.TX2, tc.TY2)
		gl.BindTexture(gl.TEXTURE_2D, 0)
		if dndDragging {
			drawSelection(dndStart, dndEnd)
		}
		drawProgress(512, 512, lastProgress, rc.Pending)
		sdl.GL_SwapBuffers()
	}
}
Exemple #5
0
func main() {

	flag.Parse()

	var done bool
	var keys []uint8

	sdl.Init(sdl.INIT_VIDEO)

	var screen = sdl.SetVideoMode(300, 300, 16, sdl.OPENGL|sdl.RESIZABLE)

	if screen == nil {
		sdl.Quit()
		panic("Couldn't set 300x300 GL video mode: " + sdl.GetError() + "\n")
	}

	sdl.WM_SetCaption("Gears", "gears")

	init_()
	reshape(int(screen.W), int(screen.H))
	done = false
	for !done {
		var event sdl.Event

		idle()
		for event.Poll() {
			switch event.Type {
			case sdl.VIDEORESIZE:
				screen = sdl.SetVideoMode(int(event.Resize().W), int(event.Resize().H), 16,
					sdl.OPENGL|sdl.RESIZABLE)
				if screen != nil {
					reshape(int(screen.W), int(screen.H))
				} else {
					panic("we couldn't set the new video mode??")
				}
				break

			case sdl.QUIT:
				done = true
				break
			}
		}
		keys = sdl.GetKeyState()

		if keys[sdl.K_ESCAPE] != 0 {
			done = true
		}
		if keys[sdl.K_UP] != 0 {
			view_rotx += 5.0
		}
		if keys[sdl.K_DOWN] != 0 {
			view_rotx -= 5.0
		}
		if keys[sdl.K_LEFT] != 0 {
			view_roty += 5.0
		}
		if keys[sdl.K_RIGHT] != 0 {
			view_roty -= 5.0
		}
		if keys[sdl.K_z] != 0 {
			if (sdl.GetModState() & sdl.KMOD_RSHIFT) != 0 {
				view_rotz -= 5.0
			} else {
				view_rotz += 5.0
			}
		}

		draw()
	}
	sdl.Quit()
	return

}
Exemple #6
0
func (win *window) eventLoop() {
	if win.ec == nil {
		win.ec = make(chan interface{})
	}

eloop:
	for win.events {
		var ev sdl.Event
		for ev.Poll() {
			switch ev.Type {
			case sdl.KEYUP:
				key := ev.Keyboard().Keysym.Sym
				win.ec <- gui.KeyEvent{int(-key)}
			case sdl.KEYDOWN:
				key := ev.Keyboard().Keysym.Sym
				win.ec <- gui.KeyEvent{int(key)}
			case sdl.MOUSEMOTION:
				m := ev.MouseMotion()
				win.ec <- gui.MouseEvent{
					Buttons: int(m.State),
					Loc:     image.Pt(int(m.X), int(m.Y)),
					Nsec:    time.Nanoseconds(),
				}
			case sdl.MOUSEBUTTONUP, sdl.MOUSEBUTTONDOWN:
				m := ev.MouseButton()
				win.ec <- gui.MouseEvent{
					Buttons: int(sdl.GetMouseState(nil, nil)),
					Loc:     image.Pt(int(m.X), int(m.Y)),
					Nsec:    time.Nanoseconds(),
				}
			case sdl.VIDEORESIZE:
				r := ev.Resize()
				win.ec <- gui.ConfigEvent{image.Config{
					win.Screen().ColorModel(),
					int(r.W),
					int(r.H),
				}}
			case sdl.QUIT:
				break eloop
			}
		}
	}

	close(win.ec)
}