func main() {
err := glfw.Init(gl.ContextWatcher)
if err != nil {
panic(err)
}
defer glfw.Terminate()
glfw.WindowHint(glfw.StencilBits, 1)
glfw.WindowHint(glfw.Samples, 4)
window, err := glfw.CreateWindow(1000*0.6, 600*0.6, "NanoVGo", nil, nil)
if err != nil {
panic(err)
}
window.SetKeyCallback(key)
window.MakeContextCurrent()
ctx, err := nanovgo.NewContext(0)
defer ctx.Delete()
if err != nil {
panic(err)
}
demoData := LoadDemo(ctx)
glfw.SwapInterval(0)
fps := perfgraph.NewPerfGraph("Frame Time", "sans")
for !window.ShouldClose() {
t, _ := fps.UpdateGraph()
fbWidth, fbHeight := window.GetFramebufferSize()
winWidth, winHeight := window.GetSize()
mx, my := window.GetCursorPos()
pixelRatio := float32(fbWidth) / float32(winWidth)
gl.Viewport(0, 0, fbWidth, fbHeight)
if premult {
gl.ClearColor(0, 0, 0, 0)
} else {
gl.ClearColor(0.3, 0.3, 0.32, 1.0)
}
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.CULL_FACE)
gl.Disable(gl.DEPTH_TEST)
ctx.BeginFrame(winWidth, winHeight, pixelRatio)
demo.RenderDemo(ctx, float32(mx), float32(my), float32(winWidth), float32(winHeight), t, blowup, demoData)
fps.RenderGraph(ctx, 5, 5)
ctx.EndFrame()
gl.Enable(gl.DEPTH_TEST)
window.SwapBuffers()
glfw.PollEvents()
}
demoData.FreeData(ctx)
}
func main() {
if err := glfw.Init(gl.ContextWatcher); err != nil {
panic(err)
}
defer glfw.Terminate()
window, err := glfw.CreateWindow(400, 400, "", nil, nil)
if err != nil {
panic(err)
}
window.MakeContextCurrent()
glfw.SwapInterval(1) // Vsync.
framebufferSizeCallback := func(w *glfw.Window, framebufferSize0, framebufferSize1 int) {
gl.Viewport(0, 0, framebufferSize0, framebufferSize1)
var windowSize [2]int
windowSize[0], windowSize[1] = w.GetSize()
_, _ = windowSize[0], windowSize[1]
/*inputEvent := InputEvent{
Pointer: windowPointer,
EventTypes: map[EventType]struct{}{AXIS_EVENT: struct{}{}},
InputId: 0,
Buttons: nil,
Sliders: nil,
Axes: []float64{float64(windowSize[0]), float64(windowSize[1])},
}
inputEventQueue = events.EnqueueInputEvent(inputEventQueue, inputEvent)*/
}
{
var framebufferSize [2]int
framebufferSize[0], framebufferSize[1] = window.GetFramebufferSize()
framebufferSizeCallback(window, framebufferSize[0], framebufferSize[1])
}
window.SetFramebufferSizeCallback(framebufferSizeCallback)
var inputEventQueue []events.InputEvent
mousePointer = &events.Pointer{VirtualCategory: events.POINTING}
keyboardPointer = &events.Pointer{VirtualCategory: events.TYPING}
window.SetMouseMovementCallback(func(w *glfw.Window, xpos, ypos, xdelta, ydelta float64) {
inputEvent := events.InputEvent{
Pointer: mousePointer,
EventTypes: map[events.EventType]struct{}{events.SLIDER_EVENT: {}},
InputId: 0,
Buttons: nil,
Sliders: []float64{xdelta, ydelta},
}
if w.GetInputMode(glfw.CursorMode) != glfw.CursorDisabled {
inputEvent.EventTypes[events.AXIS_EVENT] = struct{}{}
inputEvent.Axes = []float64{xpos, ypos}
}
inputEventQueue = events.EnqueueInputEvent(inputEventQueue, inputEvent)
})
window.SetScrollCallback(func(w *glfw.Window, xoff float64, yoff float64) {
inputEvent := events.InputEvent{
Pointer: mousePointer,
EventTypes: map[events.EventType]struct{}{events.SLIDER_EVENT: {}},
InputId: 2,
Buttons: nil,
Sliders: []float64{yoff, xoff},
Axes: nil,
}
inputEventQueue = events.EnqueueInputEvent(inputEventQueue, inputEvent)
})
window.SetMouseButtonCallback(func(w *glfw.Window, button glfw.MouseButton, action glfw.Action, mods glfw.ModifierKey) {
inputEvent := events.InputEvent{
Pointer: mousePointer,
EventTypes: map[events.EventType]struct{}{events.BUTTON_EVENT: {}},
InputId: uint16(button),
Buttons: []bool{action != glfw.Release},
Sliders: nil,
Axes: nil,
ModifierKey: uint8(mods),
}
inputEventQueue = events.EnqueueInputEvent(inputEventQueue, inputEvent)
})
window.SetKeyCallback(func(w *glfw.Window, key glfw.Key, scancode int, action glfw.Action, mods glfw.ModifierKey) {
inputEvent := events.InputEvent{
Pointer: keyboardPointer,
EventTypes: map[events.EventType]struct{}{events.BUTTON_EVENT: {}},
InputId: uint16(key),
Buttons: []bool{action != glfw.Release},
Sliders: nil,
Axes: nil,
ModifierKey: uint8(mods),
}
inputEventQueue = events.EnqueueInputEvent(inputEventQueue, inputEvent)
// HACK.
switch {
case key == glfw.Key1 && action == glfw.Press:
window.SetInputMode(glfw.CursorMode, glfw.CursorNormal)
case key == glfw.Key2 && action == glfw.Press:
window.SetInputMode(glfw.CursorMode, glfw.CursorHidden)
case key == glfw.Key3 && action == glfw.Press:
window.SetInputMode(glfw.CursorMode, glfw.CursorDisabled)
}
})
window.SetCharCallback(func(w *glfw.Window, char rune) {
inputEvent := events.InputEvent{
Pointer: keyboardPointer,
EventTypes: map[events.EventType]struct{}{events.CHARACTER_EVENT: {}},
InputId: uint16(char),
Buttons: nil,
Sliders: nil,
Axes: nil,
}
inputEventQueue = events.EnqueueInputEvent(inputEventQueue, inputEvent)
})
gl.ClearColor(0.85, 0.85, 0.85, 1)
for !window.ShouldClose() {
glfw.PollEvents()
// Process Input.
inputEventQueue = processInputEventQueue(inputEventQueue)
gl.Clear(gl.COLOR_BUFFER_BIT)
mousePointer.Render()
window.SwapBuffers()
runtime.Gosched()
}
}