func main() { runtime.LockOSThread() if err := glfw.Init(); err != nil { panic(err) } defer glfw.Terminate() window, err := glfw.CreateWindow(800, 600, "fontstash example", nil, nil) if err != nil { panic(err) } window.MakeContextCurrent() glfw.SwapInterval(1) gl.Init() data, err := ioutil.ReadFile(filepath.Join("..", "ClearSans-Regular.ttf")) if err != nil { panic(err) } gl.Enable(gl.TEXTURE_2D) tmpBitmap := make([]byte, 512*512) cdata, err, _, tmpBitmap := truetype.BakeFontBitmap(data, 0, 32, tmpBitmap, 512, 512, 32, 96) var ftex uint32 gl.GenTextures(1, &ftex) gl.BindTexture(gl.TEXTURE_2D, ftex) gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR) gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR) gl.TexImage2D(gl.TEXTURE_2D, 0, gl.ALPHA, 512, 512, 0, gl.ALPHA, gl.UNSIGNED_BYTE, unsafe.Pointer(&tmpBitmap[0])) gl.ClearColor(0.3, 0.3, 0.32, 1.) for !window.ShouldClose() { gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) gl.MatrixMode(gl.PROJECTION) gl.LoadIdentity() gl.Ortho(0, 800, 600, 0, 0, 1) gl.MatrixMode(gl.MODELVIEW) gl.LoadIdentity() gl.Disable(gl.DEPTH_TEST) gl.Color4ub(255, 255, 255, 255) gl.Enable(gl.BLEND) gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA) my_print(100, 100, "The quick brown fox jumps over the fence", ftex, cdata) window.SwapBuffers() glfw.PollEvents() } }
func main() { data, err := ioutil.ReadFile(filepath.Join("..", "ClearSans-Regular.ttf")) if err != nil { panic(err) } tmpBitmap := make([]byte, 512*512) cdata, err, _, tmpBitmap := truetype.BakeFontBitmap(data, 0, 32, tmpBitmap, 512, 512, 32, 96) var x, y float64 b := 'b' x, q := truetype.GetBakedQuad(cdata, 512, 512, int(b)-32, x, y, true) fmt.Println(q) }