converter

type AdjustConfig struct {
	Brightness float32 // -100 to +100, 0 = no change
	Contrast   float32 // -100 to +100, 0 = no change
}

type AlgorithmInfo struct {
	Name        string
	Category    string
	Description string
}

type CropAnchor string

type DitherConfig struct {
	Algorithm  string
	Strength   float32 // 0.0 to 1.0
	Threshold  float32 // 0.0 to 1.0, for threshold dithering
	Serpentine bool
	BayerSize  int // 2, 4, 8, or 16
}

type ImageOptions struct {
	Dither DitherConfig
	Resize ResizeConfig
	Adjust AdjustConfig
}

type Options struct {
	InputPath   string
	OutputPath  string
	PreviewPath string
	Dither      DitherConfig
	Resize      ResizeConfig
	Adjust      AdjustConfig
	Preview     bool
}

type ReelConfig struct {
	Dither       DitherConfig
	Adjust       AdjustConfig
	MaxFrames    int // 0 = no limit (up to 90)
	SkipFrames   int // Take every Nth frame (1 = all frames)
	TargetFPS    int // 0 = use GIF timing
	TargetWidth  int // 0 = auto (max 200)
	TargetHeight int // 0 = auto (max 120)
}

type ReelResult struct {
	Reel           *preel.Reel
	DitheredFrames []image.Image
	InputWidth     int
	InputHeight    int
	OutputWidth    int
	OutputHeight   int
	InputFrames    int
	OutputFrames   int
}

type ResizeConfig struct {
	Mode         ResizeMode
	Anchor       CropAnchor
	TargetWidth  int // 0 means use MaxWidth
	TargetHeight int // 0 means use MaxHeight
	OffsetX      int // Additional horizontal offset for crop (positive = right, negative = left)
	OffsetY      int // Additional vertical offset for crop (positive = down, negative = up)
}

type ResizeMode string

type Result struct {
	ParticleImage *pimg.ParticleImage
	DitheredImage image.Image
	InputWidth    int
	InputHeight   int
	OutputWidth   int
	OutputHeight  int
}