504 lines
14 KiB
Go
504 lines
14 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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"rhemawavetech.com/rhemawave/internal/colors"
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"rhemawavetech.com/rhemawave/internal/db"
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"rhemawavetech.com/rhemawave/internal/fontManager"
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"rhemawavetech.com/rhemawave/internal/logger"
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"rhemawavetech.com/rhemawave/internal/mixer"
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"rhemawavetech.com/rhemawave/internal/shaderManager"
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)
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// focusToggle is the focus state of the audio on/off toggle, the bottommost
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// focusable item. Focus states increase from top to bottom on screen:
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// 0 = Audio Track entry, 1 = Output Device entry, focusToggle = toggle.
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const focusToggle = 2
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const triangleSize = float32(16)
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// AudioOptions is the hub for audio settings. It hosts the master volume and
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// the audio on/off toggle, and routes to the TrackSelection and AudioDevices
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// pages for picking the track and the output device.
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type AudioOptions 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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AudioStatusToggle StringItem
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audioTrackItem StringItem
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outputDeviceItem StringItem
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VolumeLabel StringItem
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volumePercent StringItem
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volumeBarX int32
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volumeBarY int32
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volumeBarW int32
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volumeBarH int32
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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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focusState int
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}
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func (p *AudioOptions) Init(ctx *PageCtx) error {
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var err error
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p.verticalMargin = int32(20)
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p.focusState = focusToggle
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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 Options", 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 -- Left/Right to change volume -- 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.VolumeLabel, err = NewStringItem("Volume", p.font, colors.White)
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if err != nil {
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return fmt.Errorf("creating volume label: %w", err)
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}
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p.VolumeLabel.Scale(p.ItemScale)
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if err = p.CreateVolumePercentItem(); err != nil {
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logger.Error("failed to create VolumePercentItem in AudioOptions.Init()")
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}
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if err = p.CreateAudioStatusItem(); err != nil {
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logger.Error("failed to create AudioStatusItem in AudioOptions.Init()")
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}
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if err = p.buildNavigationItems(); err != nil {
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return fmt.Errorf("creating navigation items: %w", err)
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}
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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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// buildNavigationItems creates the "Audio Track" and "Output Device" entries
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// that navigate to the TrackSelection and AudioDevices pages. Labels include
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// the currently selected value so returning to this page shows the latest
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// choice.
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func (p *AudioOptions) buildNavigationItems() error {
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var err error
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p.audioTrackItem, err = NewStringItem(p.currentTrackLabel(), p.font, colors.White)
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if err != nil {
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return fmt.Errorf("creating audio track item: %w", err)
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}
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p.audioTrackItem.Scale(p.ItemScale)
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p.outputDeviceItem, err = NewStringItem(p.currentDeviceLabel(), p.font, colors.White)
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if err != nil {
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return fmt.Errorf("creating output device item: %w", err)
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}
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p.outputDeviceItem.Scale(p.ItemScale)
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return nil
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}
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func (p *AudioOptions) currentTrackLabel() string {
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config, err := db.GetConfig(p.Context.DbPtr)
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if err != nil {
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return "Audio Track"
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}
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if config.DynamicAudio {
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return "Audio Track: Dynamic Audio"
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}
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var selected db.AudioTrack
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if err := p.Context.DbPtr.Where("selected = ?", true).First(&selected).Error; err != nil {
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return "Audio Track"
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}
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if selected.Name != "" {
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return "Audio Track: " + selected.Name
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}
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return "Audio Track"
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}
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func (p *AudioOptions) currentDeviceLabel() string {
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current := mixer.CurrentDevice()
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if current == "" {
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return "Output Device: System Default"
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}
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return "Output Device: " + mixer.HumanizeDeviceName(current)
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}
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func (p *AudioOptions) CreateAudioStatusItem() error {
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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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on := config.AudioEnabled
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statusString := "Turn Audio On"
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color := colors.Green
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if on {
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statusString = "Turn Audio Off"
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color = colors.Red
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}
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item, err := NewStringItem(statusString, p.font, color)
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if err != nil {
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return fmt.Errorf("failed to create '%s' string item: %v", statusString, err)
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}
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item.Scale(p.ItemScale)
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p.AudioStatusToggle = item
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return nil
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}
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func (p *AudioOptions) CreateVolumePercentItem() error {
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if p.volumePercent.ID != 0 {
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gl.DeleteTextures(1, &p.volumePercent.ID)
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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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pct := int(config.SavedVolume * 100)
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item, err := NewStringItem(fmt.Sprintf("%d%%", pct), p.font, colors.White)
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if err != nil {
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return fmt.Errorf("failed to create volume percent item: %v", err)
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}
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item.Scale(p.ItemScale)
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p.volumePercent = item
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return nil
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}
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func (p *AudioOptions) UpdateVolume(level int) {
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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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newVol := mixer.ConvertVolume(level) + config.SavedVolume
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if newVol < 0.0 || newVol > 1.0 {
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return
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}
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if newVol > .99 {
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newVol = 1.0
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}
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config.SavedVolume = newVol
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p.Context.DbPtr.Save(&config)
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if err := mixer.SetVolume(newVol); err != nil {
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logger.Error("Error setting volume: %v", err)
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}
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if err := p.CreateVolumePercentItem(); err != nil {
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logger.Error("failed to refresh volume percent item: %v", err)
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}
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gap := int32(12)
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p.volumePercent.X = p.volumeBarX + p.volumeBarW + gap
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p.volumePercent.Y = p.volumeBarY + (p.volumeBarH-p.volumePercent.H)/2
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}
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func (p *AudioOptions) layout() {
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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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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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barH := int32(float32(config.StandardFontSize) * p.ItemScale)
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barW := int32(float32(p.ScreenWidth) * 0.30)
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barX := p.ScreenCenterX - barW/2
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barY := p.prompt.Y - p.verticalMargin*2 - barH
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p.volumeBarX = barX
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p.volumeBarY = barY
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p.volumeBarW = barW
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p.volumeBarH = barH
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p.VolumeLabel.X = barX - p.VolumeLabel.W - 20
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p.VolumeLabel.Y = barY + (barH-p.VolumeLabel.H)/2
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gap := int32(12)
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p.volumePercent.X = barX + barW + gap
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p.volumePercent.Y = barY + (barH-p.volumePercent.H)/2
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p.AudioStatusToggle.X = p.ScreenCenterX - p.AudioStatusToggle.W/2
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p.AudioStatusToggle.Y = barY - p.verticalMargin*3 - p.AudioStatusToggle.H
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p.outputDeviceItem.X = p.ScreenCenterX - p.outputDeviceItem.W/2
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p.outputDeviceItem.Y = p.AudioStatusToggle.Y - p.verticalMargin - p.outputDeviceItem.H
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p.audioTrackItem.X = p.ScreenCenterX - p.audioTrackItem.W/2
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p.audioTrackItem.Y = p.outputDeviceItem.Y - p.verticalMargin - p.audioTrackItem.H
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p.updateCursorPosition()
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}
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func (p *AudioOptions) updateCursorPosition() {
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cursorGap := int32(12)
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var item *StringItem
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switch {
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case p.focusState == focusToggle:
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item = &p.AudioStatusToggle
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case p.focusState == 0:
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item = &p.audioTrackItem
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case p.focusState == 1:
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item = &p.outputDeviceItem
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default:
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return
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}
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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 *AudioOptions) ToggleAudio() {
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config, err := db.GetConfig(p.Context.DbPtr)
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if err != nil {
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logger.Error("panic! Cannot query database for configuration")
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panic(err)
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}
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config.AudioEnabled = !config.AudioEnabled
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p.Context.DbPtr.Save(config)
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p.CreateAudioStatusItem()
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p.layout()
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}
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// moveFocus returns the focus state after moving by delta (1 = down, -1 = up)
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// on screen. Focus states run 0 (Audio Track) to focusToggle (toggle), so
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// navigation never skips the Output Device entry.
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func moveFocus(current, delta int) int {
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next := current + delta
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if next < 0 {
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next = 0
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}
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if next > focusToggle {
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next = focusToggle
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}
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return next
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}
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func (p *AudioOptions) 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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switch e.Keysym.Sym {
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case sdl.K_RETURN:
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switch p.focusState {
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case focusToggle:
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p.ToggleAudio()
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case 0:
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p.Context.NavigateTo(TRACKS)
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case 1:
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p.Context.NavigateTo(AUDIO_DEVICES)
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}
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case sdl.K_DOWN:
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p.focusState = moveFocus(p.focusState, 1)
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p.updateCursorPosition()
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case sdl.K_UP:
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p.focusState = moveFocus(p.focusState, -1)
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p.updateCursorPosition()
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case sdl.K_RIGHT:
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p.UpdateVolume(10)
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case sdl.K_LEFT:
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p.UpdateVolume(-10)
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case sdl.K_BACKSPACE:
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p.Context.NavigateTo(SETTINGS)
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}
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return nil
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}
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func (p *AudioOptions) 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 *AudioOptions) renderVolumeBar() error {
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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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vol := config.SavedVolume
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fillW := float32(p.volumeBarW) * float32(vol)
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if fillW > 0 {
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if err := p.RenderSolidColorQuad(
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p.solidShader,
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mgl32.Vec2{float32(p.volumeBarX), float32(p.volumeBarY)},
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mgl32.Vec2{fillW, float32(p.volumeBarH)},
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colors.White,
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); err != nil {
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return fmt.Errorf("rendering volume fill: %w", err)
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}
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}
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thickness := float32(2)
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bx := float32(p.volumeBarX)
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by := float32(p.volumeBarY)
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bw := float32(p.volumeBarW)
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bh := float32(p.volumeBarH)
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outlineRects := [4][2]mgl32.Vec2{
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{{bx, by}, {bw, thickness}},
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{{bx, by + bh - thickness}, {bw, thickness}},
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{{bx, by}, {thickness, bh}},
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{{bx + bw - thickness, by}, {thickness, bh}},
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}
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for _, r := range outlineRects {
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if err := p.RenderSolidColorQuad(p.solidShader, r[0], r[1], colors.Green); err != nil {
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return fmt.Errorf("rendering volume outline: %w", err)
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}
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}
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return nil
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}
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func (p *AudioOptions) 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 *AudioOptions) 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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if err := p.RenderTexture(p.textShader, p.VolumeLabel.ID, p.VolumeLabel.Position(), p.VolumeLabel.RawDimensions(), p.VolumeLabel.Color); err != nil {
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return fmt.Errorf("render volume label: %w", err)
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}
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if err := p.renderVolumeBar(); err != nil {
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return fmt.Errorf("render volume bar: %w", err)
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}
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if err := p.RenderTexture(p.textShader, p.volumePercent.ID, p.volumePercent.Position(), p.volumePercent.RawDimensions(), p.volumePercent.Color); err != nil {
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return fmt.Errorf("render volume percent: %w", err)
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}
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if err := p.RenderTexture(p.textShader, p.AudioStatusToggle.ID, p.AudioStatusToggle.Position(), p.AudioStatusToggle.RawDimensions(), p.AudioStatusToggle.Color); err != nil {
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return fmt.Errorf("render audio toggle: %w", err)
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}
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if err := p.RenderTexture(p.textShader, p.audioTrackItem.ID, p.audioTrackItem.Position(), p.audioTrackItem.RawDimensions(), p.audioTrackItem.Color); err != nil {
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return fmt.Errorf("render audio track item: %w", err)
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}
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if err := p.RenderTexture(p.textShader, p.outputDeviceItem.ID, p.outputDeviceItem.Position(), p.outputDeviceItem.RawDimensions(), p.outputDeviceItem.Color); err != nil {
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return fmt.Errorf("render output device item: %w", err)
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}
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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 *AudioOptions) 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.VolumeLabel.ID)
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gl.DeleteTextures(1, &p.volumePercent.ID)
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gl.DeleteTextures(1, &p.AudioStatusToggle.ID)
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gl.DeleteTextures(1, &p.audioTrackItem.ID)
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gl.DeleteTextures(1, &p.outputDeviceItem.ID)
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gl.DeleteBuffers(1, &p.triVBO)
|
|
gl.DeleteVertexArrays(1, &p.triVAO)
|
|
return nil
|
|
}
|