Ejemplo n.º 1
0
// Destroy cleans up after the window has been closed. This is normally used by
// the game loop after the game loop has been stopped.
func Destroy() {
	win := getCurrent()
	win.open = false
	sdl.GL_DeleteContext(win.context)
	win.sdl_window.Destroy()
	// The old window may have generated pending events which are no longer
	// relevant. Destroy them all!
	sdl.FlushEvent(sdl.WINDOWEVENT)
}
Ejemplo n.º 2
0
func main() {
	var winTitle string = "Go-SDL2 + Go-GL"
	var winWidth, winHeight int = 800, 600
	var window *sdl.Window
	var context sdl.GLContext
	var event sdl.Event
	var running bool
	var err error

	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()

	if err = gl.Init(); err != nil {
		panic(err)
	}

	window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
		winWidth, winHeight, sdl.WINDOW_OPENGL)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()
	context, err = sdl.GL_CreateContext(window)
	if err != nil {
		panic(err)
	}
	defer sdl.GL_DeleteContext(context)

	gl.Enable(gl.DEPTH_TEST)
	gl.ClearColor(0.2, 0.2, 0.3, 1.0)
	gl.ClearDepth(1)
	gl.DepthFunc(gl.LEQUAL)
	gl.Viewport(0, 0, int32(winWidth), int32(winHeight))

	running = true
	for running {
		for event = sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
			switch t := event.(type) {
			case *sdl.QuitEvent:
				running = false
			case *sdl.MouseMotionEvent:
				fmt.Printf("[%d ms] MouseMotion\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n", t.Timestamp, t.Which, t.X, t.Y, t.XRel, t.YRel)
			}
		}
		drawgl()
		sdl.GL_SwapWindow(window)
	}
}
Ejemplo n.º 3
0
func main() {
	var (
		err     error
		window  *sdl.Window
		context sdl.GLContext
	)

	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()

	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_COMPATIBILITY)

	window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_OPENGL)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()

	context, err = sdl.GL_CreateContext(window)
	if err != nil {
		panic(err)
	}
	defer sdl.GL_DeleteContext(context)

	if err = sdl.GL_MakeCurrent(window, context); err != nil {
		panic(err)
	}

	if err = gl.Init(); err != nil {
		panic(err)
	}

	sdl.GL_SetSwapInterval(1)

	printGLInfo()
	setupGL()
	windowLoop(window)
}
Ejemplo n.º 4
0
func main() {
	var (
		err     error
		window  *sdl.Window
		context sdl.GLContext
	)

	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()

	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MAJOR_VERSION, 3)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MINOR_VERSION, 2)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_CORE)

	window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_OPENGL)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()

	context, err = sdl.GL_CreateContext(window)
	if err != nil {
		panic(err)
	}
	defer sdl.GL_DeleteContext(context)

	if err = sdl.GL_MakeCurrent(window, context); err != nil {
		panic(err)
	}

	if err = gl.Init(); err != nil {
		panic(err)
	}

	printGLInfo()
	cameraMatrixUniform := setupGL()
	windowLoop(window, cameraMatrixUniform)
}
Ejemplo n.º 5
0
func TestTexture(t *testing.T) {
	if sdl.Init(sdl.INIT_EVERYTHING) != 0 {
		panic(sdl.GetError())
	}
	defer sdl.Quit()

	window := sdl.CreateWindow("test", 0, 0, 320, 200, sdl.WINDOW_HIDDEN|sdl.WINDOW_OPENGL)
	defer window.Destroy()

	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_ES)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MAJOR_VERSION, 2)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MINOR_VERSION, 0)

	glctx := sdl.GL_CreateContext(window)
	defer sdl.GL_DeleteContext(glctx)

	tex := gl.CreateTexture()
	gl.BindTexture(gl.TEXTURE_2D, tex)
	if !gl.IsTexture(tex) {
		t.Error(tex, "is not a texture")
	}
}
Ejemplo n.º 6
0
func (w Window) Close() {
	sdl.GL_DeleteContext(w.contextSDL)
	w.windowSDL.Destroy()
	sdl.Quit()
}
Ejemplo n.º 7
0
func main() {
	var window *sdl.Window
	var context sdl.GLContext
	var event sdl.Event
	var running bool
	var err error
	runtime.LockOSThread()
	if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()
	window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED,
		sdl.WINDOWPOS_UNDEFINED,
		winWidth, winHeight, sdl.WINDOW_OPENGL)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()
	context, err = sdl.GL_CreateContext(window)
	if err != nil {
		panic(err)
	}
	defer sdl.GL_DeleteContext(context)

	gl.Init()
	gl.Viewport(0, 0, gl.Sizei(winWidth), gl.Sizei(winHeight))
	// OPENGL FLAGS
	gl.ClearColor(0.0, 0.1, 0.0, 1.0)
	gl.Enable(gl.DEPTH_TEST)
	gl.DepthFunc(gl.LESS)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

	// VERTEX BUFFER
	var vertexbuffer gl.Uint
	gl.GenBuffers(1, &vertexbuffer)
	gl.BindBuffer(gl.ARRAY_BUFFER, vertexbuffer)
	gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(len(triangle_vertices)*4), gl.Pointer(&triangle_vertices[0]), gl.STATIC_DRAW)

	// COLOUR BUFFER
	var colourbuffer gl.Uint
	gl.GenBuffers(1, &colourbuffer)
	gl.BindBuffer(gl.ARRAY_BUFFER, colourbuffer)
	gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(len(triangle_colours)*4), gl.Pointer(&triangle_colours[0]), gl.STATIC_DRAW)

	// GUESS WHAT
	program := createprogram()

	// VERTEX ARRAY
	var VertexArrayID gl.Uint
	gl.GenVertexArrays(1, &VertexArrayID)
	gl.BindVertexArray(VertexArrayID)
	gl.EnableVertexAttribArray(0)
	gl.BindBuffer(gl.ARRAY_BUFFER, vertexbuffer)
	gl.VertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, 0, nil)

	// VERTEX ARRAY HOOK COLOURS
	gl.EnableVertexAttribArray(1)
	gl.BindBuffer(gl.ARRAY_BUFFER, colourbuffer)
	gl.VertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, 0, nil)

	//UNIFORM HOOK
	unistring := gl.GLString("scaleMove")
	UniScale = gl.GetUniformLocation(program, unistring)
	fmt.Printf("Uniform Link: %v\n", UniScale+1)

	gl.UseProgram(program)

	running = true
	for running {
		for event = sdl.PollEvent(); event != nil; event =
			sdl.PollEvent() {
			switch t := event.(type) {
			case *sdl.QuitEvent:
				running = false
			case *sdl.MouseMotionEvent:

				xrot = float32(t.Y) / 2
				yrot = float32(t.X) / 2
				fmt.Printf("[%dms]MouseMotion\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n", t.Timestamp, t.Which, t.X, t.Y, t.XRel, t.YRel)
			}
		}
		drawgl()
		sdl.GL_SwapWindow(window)
	}
}
Ejemplo n.º 8
0
func main() {
	runtime.LockOSThread()

	flag.Parse()
	if *cpuprofile != "" {
		f, err := os.Create(*cpuprofile)
		if err != nil {
			log.Fatal(err)
		}
		pprof.StartCPUProfile(f)
		defer pprof.StopCPUProfile()
	}

	if err := sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		panic(err)
	}
	defer sdl.Quit()

	sdl.GL_SetAttribute(sdl.GL_MULTISAMPLESAMPLES, 4)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MAJOR_VERSION, 3)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MINOR_VERSION, 3)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_CORE)
	sdl.GL_SetAttribute(sdl.GL_DOUBLEBUFFER, 1)
	sdl.GL_SetAttribute(sdl.GL_DEPTH_SIZE, 24)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_FLAGS, sdl.GL_CONTEXT_DEBUG_FLAG|sdl.GL_CONTEXT_FORWARD_COMPATIBLE_FLAG)

	window, err := sdl.CreateWindow("TOW", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, 1024, 768, sdl.WINDOW_OPENGL|sdl.WINDOW_SHOWN|sdl.WINDOW_RESIZABLE)
	if err != nil {
		log.Fatal("can't create window", err)
	}
	defer window.Destroy()

	//defer renderer.Destroy()

	glcontext, err := sdl.GL_CreateContext(window)
	if err != nil {
		log.Fatal("can't create context", err)
	}
	defer sdl.GL_DeleteContext(glcontext)
	sdl.GL_MakeCurrent(window, glcontext)

	//err := gl.GlewInit()
	//fmt.Println(gl.GlewGetErrorString(err))
	//glew init
	gl.Init()
	sdl.GL_SetSwapInterval(1)

	fmt.Println("glVersion", gl.GetString(gl.VERSION))

	tw.Init(tw.OPENGL_CORE, nil)
	defer tw.Terminate()

	gl.GetError() // Ignore error
	debugContext.InitDebugContext()

	world := generation.GenerateWorld(64, 64, 2)
	gs := gamestate.NewGameState(window, world)
	defer gs.Delete()
	worldRenderer := rendering.NewWorldRenderer(window, gs.World)
	defer worldRenderer.Delete()

	gs.Bar.AddButton("screen shot", worldRenderer.ScreenShot, "")

	MainLoop(gs, worldRenderer)

	if *memprofile != "" {
		f, err := os.Create(*memprofile)
		if err != nil {
			panic(err)
		}
		pprof.WriteHeapProfile(f)
		f.Close()
		return
	}
}
Ejemplo n.º 9
0
Archivo: window.go Proyecto: fmd/gogol
// Destroys the Bronson window.
func (w *Window) Destroy() {
	sdl.GL_DeleteContext(w.Context)
	w.Window.Destroy()
	sdl.Quit()
}
Ejemplo n.º 10
0
func TestBindVariables(t *testing.T) {
	if sdl.Init(sdl.INIT_EVERYTHING) != 0 {
		panic(sdl.GetError())
	}

	window := sdl.CreateWindow("test", 0, 0, 320, 200, sdl.WINDOW_HIDDEN|sdl.WINDOW_OPENGL)

	sdl.GL_SetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_ES)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MAJOR_VERSION, 2)
	sdl.GL_SetAttribute(sdl.GL_CONTEXT_MINOR_VERSION, 0)

	glctx := sdl.GL_CreateContext(window)

	vs := gl.CreateShader(gl.VERTEX_SHADER)
	vs.Source(`
uniform mat4 u_projection;
uniform vec2 u_size;
attribute vec2 a_vertex;
attribute vec2 a_texcoord;
varying vec2 v_texcoord;

void main()
{
	v_texcoord = a_texcoord;
	gl_Position = u_projection * vec4(a_vertex * u_size, 0, 1);
}
`)
	vs.Compile()

	fs := gl.CreateShader(gl.FRAGMENT_SHADER)
	fs.Source(`
precision mediump float;

uniform sampler2D u_tex;
uniform vec4 u_color;

varying vec2 v_texcoord;

void main()
{
	gl_FragColor = texture2D(u_tex, v_texcoord).a * u_color;
}
`)
	fs.Compile()

	p := gl.CreateProgram()

	p.AttachShader(vs)
	p.AttachShader(fs)
	p.Link()

	var v struct {
		Proj      gl.UniformMatrix4f `glsl:"u_projection"`
		Size      gl.Uniform2f       `glsl:"u_size"`
		Tex       gl.Uniform1i       `glsl:"u_tex"`
		Color     gl.Uniform4f       `glsl:"u_color"`
		Vertices  gl.Vec2Attrib      `glsl:"a_vertex"`
		TexCoords gl.Vec2Attrib      `glsl:"a_texcoord"`
	}

	p.BindVariables(&v)

	uniforms := []gl.Uniform{v.Proj, v.Size, v.Tex, v.Color}
	cksum := 0
	for _, u := range uniforms {
		cksum |= 1 << uint(u.Location())
	}

	if cksum != 0xF {
		t.Errorf("unexpected uniform locations: %#x", cksum)
	}

	attributes := []gl.VertexAttrib{v.Vertices, v.TexCoords}
	cksum = 0
	for _, a := range attributes {
		cksum |= 1 << uint(a.Index())
	}

	if cksum != 0x3 {
		t.Errorf("unexpected attribute locations: %#x", cksum)
	}

	sdl.GL_DeleteContext(glctx)
	window.Destroy()
	sdl.Quit()
}
Ejemplo n.º 11
0
Archivo: window.go Proyecto: FSX/nanovg
func StartGame() {
	window := initSDL()
	context := initGL(window)
	nvg := initNanovg()

	ww, wh := window.GetSize()
	gw := ww / 5
	gh := wh / 5

	life := NewLife(gw, gh)

	refgrid := make([][]bool, gh)
	for i := range refgrid {
		refgrid[i] = make([]bool, gw)
	}

	// Run the game at 15fps. This gives us about 66ms to calculate
	// and render everything. 30ms is not possible yet.
	minms := uint32(1000 / 15)
	running := true

	gl.ClearColor(0.3, 0.3, 0.32, 1.0)
	gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT)

	// Draw all squares first.
	tw, th := float32(life.w), float32(life.h)
	for y := float32(0); y < th; y++ {
		for x := float32(0); x < tw; x++ {
			nvg.BeginPath()
			nvg.Rect(x*5+1, y*5+1, 3, 3)
			nvg.FillColor(nanovg.RGBA(100, 100, 100, 255))
			nvg.Fill()
			nvg.ClosePath()
		}
	}

	// Loop!
	for running {
		lt := sdl.GetTicks()

		for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
			switch t := event.(type) {
			case *sdl.QuitEvent:
				running = false
			case *sdl.KeyUpEvent:
				if t.Keysym.Sym == sdl.K_ESCAPE {
					running = false
				}
			}
		}

		life.Step()

		ww, wh := window.GetSize()
		gl.Viewport(0, 0, ww, wh)

		nvg.BeginFrame(ww, wh, 1.0)
		drawGrid(life, nvg, refgrid)
		nvg.EndFrame()

		if d := sdl.GetTicks() - lt; d < minms {
			sdl.Delay(minms - d)
		}

		sdl.GL_SwapWindow(window)
	}

	// Cleanup.
	window.Destroy()
	sdl.GL_DeleteContext(context)
	nvg.Close()
	sdl.Quit()
}