GUI fields now trim leading and trailing whitespace:

internal/imgui/imgui.go

@@ -3,6 +3,8 @@ package imgui
 import (
 	"time"
 
+	"mxl-player/internal/sdl"
+
 	cimgui "github.com/AllenDang/cimgui-go/imgui"
 )
 
@@ -17,9 +19,20 @@ func New() *Context {
 	ctx := cimgui.CreateContext()
 	cimgui.SetCurrentContext(ctx)
 	io := cimgui.CurrentIO()
+	cimgui.CurrentPlatformIO().SetClipboardHandler(sdlClipboardHandler{})
 	return &Context{ctx: ctx, io: io}
 }
 
+type sdlClipboardHandler struct{}
+
+func (sdlClipboardHandler) GetClipboard() string {
+	return sdl.GetClipboardText()
+}
+
+func (sdlClipboardHandler) SetClipboard(text string) {
+	sdl.SetClipboardText(text)
+}
+
 func (c *Context) Destroy() {
 	cimgui.DestroyContext()
 }

internal/imgui/input_sdl3.go

@@ -7,6 +7,13 @@ import (
 	cimgui "github.com/AllenDang/cimgui-go/imgui"
 )
 
+const (
+	sdlKModShift uint16 = 0x0001 | 0x0002
+	sdlKModCtrl  uint16 = 0x0040 | 0x0080
+	sdlKModAlt   uint16 = 0x0100 | 0x0200
+	sdlKModGUI   uint16 = 0x0400 | 0x0800
+)
+
 // SDL3 event (128 byte raw buffer) -> imgui
 func (c *Context) ProcessEvent(event *[128]byte) {
 	eventType := *(*uint32)(unsafe.Pointer(&event[0]))
@@ -15,7 +22,9 @@ func (c *Context) ProcessEvent(event *[128]byte) {
 	switch eventType {
 	case sdl.EventKeyDown, sdl.EventKeyUp:
 		scancode := *(*uint32)(unsafe.Pointer(&event[24]))
+		modifiers := *(*uint16)(unsafe.Pointer(&event[32]))
 		down := eventType == sdl.EventKeyDown
+		c.addKeyModifiers(modifiers)
 		key := sdlScancodeToImGuiKey(scancode)
 		if key >= 0 {
 			c.io.AddKeyEvent(key, down)
@@ -47,6 +56,13 @@ func (c *Context) ProcessEvent(event *[128]byte) {
 	}
 }
 
+func (c *Context) addKeyModifiers(modifiers uint16) {
+	c.io.AddKeyEvent(cimgui.ModCtrl, modifiers&sdlKModCtrl != 0)
+	c.io.AddKeyEvent(cimgui.ModShift, modifiers&sdlKModShift != 0)
+	c.io.AddKeyEvent(cimgui.ModAlt, modifiers&sdlKModAlt != 0)
+	c.io.AddKeyEvent(cimgui.ModSuper, modifiers&sdlKModGUI != 0)
+}
+
 func sdlScancodeToImGuiKey(scancode uint32) cimgui.Key {
 	switch scancode {
 	case 40: // SDL_SCANCODE_RETURN
@@ -79,6 +95,10 @@ func sdlScancodeToImGuiKey(scancode uint32) cimgui.Key {
 		return cimgui.KeyLeftAlt
 	case 230: // SDL_SCANCODE_RALT
 		return cimgui.KeyRightAlt
+	case 227: // SDL_SCANCODE_LGUI
+		return cimgui.KeyLeftSuper
+	case 231: // SDL_SCANCODE_RGUI
+		return cimgui.KeyRightSuper
 	default:
 		// Letters A-Z: scancodes 4-29 map to ImGui KeyA-KeyZ
 		if scancode >= 4 && scancode <= 29 {

internal/renderer/renderer.go

@@ -455,7 +455,12 @@ func validateFramePayload(
 
 // DrawFrame acquires an image, records commands, submits, and presents.
 // Returns ErrOutOfDate if the swapchain needs recreation
-func (r *Renderer) DrawFrame(videoW, videoH, stride uint32) error {
+func (r *Renderer) DrawFrame(
+	videoW uint32,
+	videoH uint32,
+	stride uint32,
+	showVideo bool,
+) error {
 	imageIndex, res := r.dev.AcquireNextImage(r.swapchain, r.imageAvailable, ^uint64(0))
 	if res == vk.ErrorOutOfDateKHR || res == vk.SuboptimalKHR {
 		return ErrOutOfDate
@@ -483,7 +488,7 @@ func (r *Renderer) DrawFrame(videoW, videoH, stride uint32) error {
 		r.fbs[imageIndex],
 		vk.Rect2D{Offset: vk.Offset2D{X: 0, Y: 0}, Extent: r.extent},
 		[]vk.ClearValue{
-			vk.ClearColor(0.0, 0.0, 0.0, 1.0),
+			vk.ClearColor(0.025, 0.03, 0.04, 1.0),
 			vk.ClearDepthStencil(1.0, 0),
 		},
 	)
@@ -494,17 +499,19 @@ func (r *Renderer) DrawFrame(videoW, videoH, stride uint32) error {
 		MinDepth: 0, MaxDepth: 1,
 	})
 	cmd.SetScissor(vk.Rect2D{Offset: vk.Offset2D{X: 0, Y: 0}, Extent: r.extent})
-	cmd.BindPipeline(r.decodePipeline)
-	cmd.BindDescriptorSet(r.decodeLayout, 0, r.decodeSet)
-	pc := PushConstants{
-		Width:       videoW,
-		Height:      videoH,
-		StrideBytes: stride,
-		WinW:        r.extent.Width,
-		WinH:        r.extent.Height,
+	if showVideo {
+		cmd.BindPipeline(r.decodePipeline)
+		cmd.BindDescriptorSet(r.decodeLayout, 0, r.decodeSet)
+		pc := PushConstants{
+			Width:       videoW,
+			Height:      videoH,
+			StrideBytes: stride,
+			WinW:        r.extent.Width,
+			WinH:        r.extent.Height,
+		}
+		cmd.PushConstants(r.decodeLayout, vk.ShaderStageFragment, 0, unsafe.Pointer(&pc), 20)
+		cmd.Draw(3, 1, 0, 0)
 	}
-	cmd.PushConstants(r.decodeLayout, vk.ShaderStageFragment, 0, unsafe.Pointer(&pc), 20)
-	cmd.Draw(3, 1, 0, 0)
 	if r.ImGuiDraw != nil {
 		r.ImGuiDraw(cmd)
 	}

internal/sdl/sdl.go

@@ -63,8 +63,11 @@ var (
 	sdlGetAudioPlaybackDevices func(count *int32) uintptr
 	sdlGetAudioDeviceName      func(devid uint32) uintptr
 
-	sdlStartTextInput func(window uintptr)
-	sdlStopTextInput  func(window uintptr)
+	sdlStartTextInput   func(window uintptr)
+	sdlStopTextInput    func(window uintptr)
+	sdlGetClipboardText func() uintptr
+	sdlSetClipboardText func(text *byte) bool
+	sdlFree             func(memory uintptr)
 )
 
 var loaded = false
@@ -98,6 +101,9 @@ func Load() error {
 	// input
 	purego.RegisterLibFunc(&sdlStartTextInput, h, "SDL_StartTextInput")
 	purego.RegisterLibFunc(&sdlStopTextInput, h, "SDL_StopTextInput")
+	purego.RegisterLibFunc(&sdlGetClipboardText, h, "SDL_GetClipboardText")
+	purego.RegisterLibFunc(&sdlSetClipboardText, h, "SDL_SetClipboardText")
+	purego.RegisterLibFunc(&sdlFree, h, "SDL_free")
 	loaded = true
 	return nil
 }
@@ -197,3 +203,21 @@ func GetAudioPlaybackDevices() []AudioDevice {
 // Input wrappers
 func StartTextInput(window uintptr) { sdlStartTextInput(window) }
 func StopTextInput(window uintptr)  { sdlStopTextInput(window) }
+
+func GetClipboardText() string {
+	text := sdlGetClipboardText()
+	if text == 0 {
+		return ""
+	}
+	result := cstr(text)
+	sdlFree(text)
+	return result
+}
+
+func SetClipboardText(text string) bool {
+	bytes := make([]byte, len(text)+1)
+	copy(bytes, text)
+	result := sdlSetClipboardText(&bytes[0])
+	runtime.KeepAlive(bytes)
+	return result
+}