505 lines
12 KiB
Go
505 lines
12 KiB
Go
package page
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import (
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"fmt"
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"math"
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"github.com/go-gl/gl/v3.3-core/gl"
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"github.com/go-gl/mathgl/mgl32"
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"github.com/veandco/go-sdl2/sdl"
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"radiantwavetech.com/radiantwave/internal/colors"
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"radiantwavetech.com/radiantwave/internal/db"
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"radiantwavetech.com/radiantwave/internal/fontManager"
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"radiantwavetech.com/radiantwave/internal/logger"
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"radiantwavetech.com/radiantwave/internal/mixer"
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"radiantwavetech.com/radiantwave/internal/shaderManager"
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)
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const systemDefaultDeviceName = "System Default"
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// AudioDevices lists the available audio output sinks and lets the operator
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// pick which one RadiantWave plays through. The selection is persisted to the
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// config (via mixer.SwitchDevice) and restored on the next launch.
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type AudioDevices struct {
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Base
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font *fontManager.FontEntry
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textShader *shaderManager.Shader
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solidShader *shaderManager.Shader
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title StringItem
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prompt StringItem
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verticalMargin int32
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ItemScale float32
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sectionHeader StringItem
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devices []mixer.Device
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deviceItems []StringItem
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selectedDeviceIndex int
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focusState int
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triVAO uint32
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triVBO uint32
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triX float32
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triCenterY float32
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spinElapsed float32
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scrollOffset int
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maxVisible int
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listItemMargin int32
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listAreaTop int32
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listAreaBottom int32
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listItemHeight int32
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scrollTrackWidth int32
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scrollTrackX int32
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scrollTrackY int32
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scrollTrackH int32
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dotSize float32
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listLeftX int32
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}
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// currentDeviceIndex maps the currently opened SDL device name onto the
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// selectable list. Index 0 is always "System Default" ("" name). A matching
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// device returns its 1-based list index; no match (or an empty list) returns
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// -1 so the caller can leave the highlight unset.
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func currentDeviceIndex(devices []mixer.Device, currentName string) int {
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if currentName == "" {
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return 0
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}
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for i, dev := range devices {
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if dev.Name == currentName {
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return i + 1
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}
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}
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return -1
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}
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func (p *AudioDevices) Init(ctx *PageCtx) error {
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var err error
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p.verticalMargin = int32(20)
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p.listItemMargin = 6
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p.focusState = 0
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p.scrollOffset = 0
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p.dotSize = 8.0
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p.scrollTrackWidth = 30
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p.scrollTrackX = p.ScreenWidth - p.scrollTrackWidth
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fm := fontManager.Get()
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font, ok := fm.GetFont("SpaceMonoNerdFont-Regular")
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if !ok {
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return fmt.Errorf("failed to get font: %w", sdl.GetError())
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}
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p.font = font
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sm := shaderManager.Get()
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p.textShader, ok = sm.Get("text")
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if !ok {
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return fmt.Errorf("failed to get text shader: %w", sdl.GetError())
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}
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p.solidShader, ok = sm.Get("solid_color")
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if !ok {
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return fmt.Errorf("failed to get solid_color shader: %w", sdl.GetError())
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}
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if err = p.Base.Init(ctx); err != nil {
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return fmt.Errorf("base init failed: %w", err)
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}
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config, err := db.GetConfig(p.Context.DbPtr)
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if err != nil {
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panic(err)
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}
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baseFontSize := config.StandardFontSize
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titleScale := float32(64) / float32(baseFontSize)
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p.ItemScale = float32(32) / float32(baseFontSize)
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p.title, err = NewStringItem("Audio Output Device", p.font, colors.White)
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if err != nil {
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return fmt.Errorf("creating title: %w", err)
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}
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p.title.Scale(titleScale)
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p.prompt, err = NewStringItem(
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"Enter to select -- Up/Down to navigate -- Backspace to go back",
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p.font, colors.White,
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)
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if err != nil {
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return fmt.Errorf("creating prompt: %w", err)
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}
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p.prompt.Scale(p.ItemScale)
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p.sectionHeader, err = NewStringItem("Output Device", p.font, colors.Silver)
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if err != nil {
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return fmt.Errorf("creating section header: %w", err)
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}
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p.sectionHeader.Scale(p.ItemScale * 1.2)
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p.buildDeviceList()
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triVerts := []float32{
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0.5, 0.0,
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-0.5, 0.5,
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-0.5, -0.5,
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}
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gl.GenVertexArrays(1, &p.triVAO)
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gl.GenBuffers(1, &p.triVBO)
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gl.BindVertexArray(p.triVAO)
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gl.BindBuffer(gl.ARRAY_BUFFER, p.triVBO)
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gl.BufferData(gl.ARRAY_BUFFER, len(triVerts)*4, gl.Ptr(triVerts), gl.STATIC_DRAW)
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gl.EnableVertexAttribArray(0)
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gl.VertexAttribPointerWithOffset(0, 2, gl.FLOAT, false, 2*4, 0)
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gl.BindBuffer(gl.ARRAY_BUFFER, 0)
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gl.BindVertexArray(0)
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p.layout()
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return nil
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}
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func (p *AudioDevices) buildDeviceList() {
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for i := range p.deviceItems {
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gl.DeleteTextures(1, &p.deviceItems[i].ID)
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}
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p.deviceItems = nil
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p.devices = mixer.ListDevices()
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systemDefaultItem, err := NewStringItem(systemDefaultDeviceName, p.font, colors.White)
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if err != nil {
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logger.Error("failed to create System Default string item: %v", err)
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} else {
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systemDefaultItem.Scale(p.ItemScale)
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p.deviceItems = append(p.deviceItems, systemDefaultItem)
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}
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for _, dev := range p.devices {
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label := dev.Label
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if label == "" {
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label = dev.Name
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}
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item, err := NewStringItem(label, p.font, colors.White)
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if err != nil {
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logger.Error("failed to create audio device string item for %q: %v", dev.Name, err)
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continue
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}
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item.Scale(p.ItemScale)
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p.deviceItems = append(p.deviceItems, item)
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}
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p.updateSelectedIndex()
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}
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func (p *AudioDevices) updateSelectedIndex() {
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p.selectedDeviceIndex = currentDeviceIndex(p.devices, mixer.CurrentDevice())
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if p.focusState < 0 || p.focusState >= len(p.deviceItems) {
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p.focusState = 0
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}
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}
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// selectDevice makes the item at index the active output sink and persists the
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// choice. Index 0 is the system default ("") — the SDL default device with no
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// PipeWire/WirePlumber involvement. Errors are logged but do not leave the page.
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func (p *AudioDevices) selectDevice(index int) {
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if index < 0 || index >= len(p.deviceItems) {
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return
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}
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config, err := db.GetConfig(p.Context.DbPtr)
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if err != nil {
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logger.Error("selectDevice: failed to load config: %v", err)
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return
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}
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name := ""
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if index > 0 {
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devIdx := index - 1
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if devIdx >= 0 && devIdx < len(p.devices) {
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name = p.devices[devIdx].Name
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}
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}
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if err := mixer.SwitchDevice(name, config); err != nil {
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logger.Error("Failed to switch audio device: %v", err)
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return
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}
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p.updateSelectedIndex()
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p.updateCursorPosition()
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}
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func (p *AudioDevices) layout() {
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p.title.X = p.ScreenCenterX - p.title.W/2
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p.title.Y = p.ScreenHeight - p.title.H - p.verticalMargin*2
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p.prompt.X = p.ScreenCenterX - p.prompt.W/2
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p.prompt.Y = p.title.Y - p.verticalMargin - p.prompt.H
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p.sectionHeader.X = p.ScreenCenterX - p.sectionHeader.W/2
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p.sectionHeader.Y = p.prompt.Y - p.verticalMargin - p.sectionHeader.H
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p.listItemHeight = p.deviceItems[0].H
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listTop := p.sectionHeader.Y - p.listItemMargin
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listBottomMargin := int32(12)
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listH := listTop - listBottomMargin
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if listH < p.listItemHeight {
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listH = p.listItemHeight
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}
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p.listAreaTop = listTop
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p.listAreaBottom = listBottomMargin
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itemStep := p.listItemHeight + p.listItemMargin
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n := len(p.deviceItems)
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p.maxVisible = int(listH / itemStep)
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if p.maxVisible < 1 {
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p.maxVisible = 1
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}
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if p.maxVisible > n {
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p.maxVisible = n
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}
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var maxItemW int32
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for i := range p.deviceItems {
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w := p.deviceItems[i].W
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if w > maxItemW {
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maxItemW = w
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}
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}
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p.listLeftX = p.ScreenCenterX - maxItemW/2
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firstVisibleY := p.listAreaTop - p.listItemHeight
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for i := range p.deviceItems {
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item := &p.deviceItems[i]
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item.X = p.listLeftX
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item.Y = firstVisibleY - int32(i-p.scrollOffset)*itemStep
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}
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maxScroll := n - p.maxVisible
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if maxScroll < 0 {
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maxScroll = 0
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}
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if p.scrollOffset > maxScroll {
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p.scrollOffset = maxScroll
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}
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p.scrollTrackY = p.listAreaBottom
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p.scrollTrackH = p.listAreaTop - p.listAreaBottom
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p.updateCursorPosition()
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}
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func (p *AudioDevices) updateCursorPosition() {
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cursorGap := int32(12)
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if p.focusState < 0 || p.focusState >= len(p.deviceItems) {
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return
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}
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item := &p.deviceItems[p.focusState]
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p.triX = float32(item.X) - triangleSize - float32(cursorGap)
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p.triCenterY = float32(item.Y) + float32(item.H)/2
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}
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func (p *AudioDevices) HandleEvent(event *sdl.Event) error {
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e, ok := (*event).(*sdl.KeyboardEvent)
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if !ok || e.Type != sdl.KEYDOWN {
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return nil
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}
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n := len(p.deviceItems)
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switch e.Keysym.Sym {
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case sdl.K_RETURN:
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p.selectDevice(p.focusState)
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case sdl.K_DOWN:
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if p.focusState < n-1 {
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p.focusState++
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if p.focusState >= p.scrollOffset+p.maxVisible {
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p.scrollOffset++
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p.layout()
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} else {
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p.updateCursorPosition()
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}
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}
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case sdl.K_UP:
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if p.focusState > 0 {
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p.focusState--
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if p.focusState < p.scrollOffset {
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p.scrollOffset--
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p.layout()
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} else {
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p.updateCursorPosition()
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}
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}
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case sdl.K_PAGEUP:
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if p.focusState > 0 {
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p.focusState -= p.maxVisible - 1
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if p.focusState < 0 {
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p.focusState = 0
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}
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p.scrollOffset = p.focusState
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p.layout()
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}
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case sdl.K_PAGEDOWN:
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if p.focusState < n-1 {
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p.focusState += p.maxVisible - 1
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if p.focusState >= n {
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p.focusState = n - 1
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}
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p.scrollOffset = p.focusState - p.maxVisible + 1
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if p.scrollOffset < 0 {
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p.scrollOffset = 0
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}
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p.layout()
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}
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case sdl.K_BACKSPACE:
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p.Context.NavigateTo(AUDIO)
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}
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return nil
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}
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func (p *AudioDevices) Update(dt float32) error {
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p.spinElapsed += dt
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if p.spinElapsed >= 1.0 {
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p.spinElapsed -= 1.0
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}
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return nil
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}
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func (p *AudioDevices) renderCursor() error {
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scaleY := float32(math.Cos(2 * math.Pi * float64(p.spinElapsed)))
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model := mgl32.Ident4()
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model = model.Mul4(mgl32.Translate3D(p.triX+triangleSize/2, p.triCenterY, 0))
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model = model.Mul4(mgl32.Scale3D(triangleSize, triangleSize*scaleY, 1))
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mvp := p.Projection.Mul4(model)
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gl.UseProgram(p.solidShader.ProgramID)
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gl.UniformMatrix4fv(p.solidShader.LocMVPMatrix, 1, false, &mvp[0])
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gl.Uniform4f(
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p.solidShader.LocColor,
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float32(colors.White.R)/255.0,
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float32(colors.White.G)/255.0,
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float32(colors.White.B)/255.0,
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float32(colors.White.A)/255.0,
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)
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gl.BindVertexArray(p.triVAO)
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gl.DrawArrays(gl.TRIANGLES, 0, 3)
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gl.BindVertexArray(0)
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gl.UseProgram(0)
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return nil
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}
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func (p *AudioDevices) renderScrollbar() {
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n := len(p.deviceItems)
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if n <= p.maxVisible {
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return
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}
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trackColor := sdl.Color{R: 255, G: 255, B: 255, A: 30}
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thumbColor := sdl.Color{R: 255, G: 255, B: 255, A: 100}
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p.RenderSolidColorQuad(p.solidShader,
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mgl32.Vec2{float32(p.scrollTrackX), float32(p.scrollTrackY)},
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mgl32.Vec2{float32(p.scrollTrackWidth), float32(p.scrollTrackH)},
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trackColor)
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visibleRatio := float32(p.maxVisible) / float32(n)
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scrollRatio := float32(p.scrollOffset) / float32(n)
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thumbHeight := float32(p.scrollTrackH) * visibleRatio
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if thumbHeight < 20 {
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thumbHeight = 20
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}
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thumbY := float32(p.scrollTrackY) + float32(p.scrollTrackH)*scrollRatio
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p.RenderSolidColorQuad(p.solidShader,
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mgl32.Vec2{float32(p.scrollTrackX + 2), thumbY},
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mgl32.Vec2{float32(p.scrollTrackWidth - 4), thumbHeight},
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thumbColor)
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}
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func (p *AudioDevices) Render() error {
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if err := p.RenderTexture(p.textShader, p.title.ID, p.title.Position(), p.title.RawDimensions(), p.title.Color); err != nil {
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return fmt.Errorf("render title: %w", err)
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}
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if err := p.RenderTexture(p.textShader, p.prompt.ID, p.prompt.Position(), p.prompt.RawDimensions(), p.prompt.Color); err != nil {
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return fmt.Errorf("render prompt: %w", err)
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}
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p.RenderTexture(p.textShader, p.sectionHeader.ID, p.sectionHeader.Position(), p.sectionHeader.RawDimensions(), p.sectionHeader.Color)
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// List background — centered width matching widest item + padding
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var maxItemW int32
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for i := range p.deviceItems {
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w := p.deviceItems[i].W
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if w > maxItemW {
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maxItemW = w
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}
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}
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bgPad := int32(16)
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bgW := maxItemW + 2*bgPad
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bgLeft := float32(p.ScreenCenterX) - float32(bgW)/2
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bgTop := float32(p.listAreaBottom)
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bgBottom := float32(p.listAreaTop)
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listBgColor := sdl.Color{R: 255, G: 255, B: 255, A: 12}
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p.RenderSolidColorQuad(p.solidShader,
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mgl32.Vec2{bgLeft, bgTop},
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mgl32.Vec2{float32(bgW), bgBottom - bgTop},
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listBgColor)
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// Device list (visible window only)
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for i := p.scrollOffset; i < p.scrollOffset+p.maxVisible && i < len(p.deviceItems); i++ {
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item := &p.deviceItems[i]
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clr := colors.White
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if i == p.selectedDeviceIndex {
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clr = colors.Green
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}
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if err := p.RenderTexture(p.textShader, item.ID, item.Position(), item.RawDimensions(), clr); err != nil {
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return fmt.Errorf("render device %d: %w", i, err)
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}
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if i == p.selectedDeviceIndex {
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dotX := float32(item.X) - p.dotSize - 6
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dotY := float32(item.Y) + float32(item.H)/2 - p.dotSize/2
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p.RenderSolidColorQuad(p.solidShader,
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mgl32.Vec2{dotX, dotY},
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mgl32.Vec2{p.dotSize, p.dotSize},
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colors.Green)
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}
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}
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p.renderScrollbar()
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if err := p.renderCursor(); err != nil {
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return fmt.Errorf("render cursor: %w", err)
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}
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return nil
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}
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func (p *AudioDevices) Destroy() error {
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gl.DeleteTextures(1, &p.title.ID)
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gl.DeleteTextures(1, &p.prompt.ID)
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gl.DeleteTextures(1, &p.sectionHeader.ID)
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for i := range p.deviceItems {
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gl.DeleteTextures(1, &p.deviceItems[i].ID)
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}
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gl.DeleteBuffers(1, &p.triVBO)
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gl.DeleteVertexArrays(1, &p.triVAO)
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return nil
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}
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