jp3d

type Component3DSpec struct {
	// BitDepth is the bit depth (with sign bit in MSB).
	BitDepth int

	// Signed indicates signed samples.
	Signed bool

	// XSeparation is the horizontal sub-sampling.
	XSeparation int

	// YSeparation is the vertical sub-sampling.
	YSeparation int

	// ZSeparation is the depth sub-sampling.
	ZSeparation int
}

type Decomposition3D struct {
	// XYLevels is the number of XY decomposition levels.
	XYLevels int

	// ZLevels is the number of Z decomposition levels.
	ZLevels int

	// Subbands contains all subbands at all levels.
	Subbands []*Subband3D
}

type Parser struct{}

type Reader struct {
	// contains filtered or unexported fields
}

type SIZ3D struct {
	// Standard SIZ parameters
	Capabilities uint16 // Profile capabilities

	// 2D dimensions
	Width  int // Image width (X)
	Height int // Image height (Y)

	// 3D extension
	Depth int // Image depth (Z) - number of slices

	// 2D offsets
	XOffset int
	YOffset int

	// 3D offset
	ZOffset int

	// 2D tile dimensions
	TileWidth  int
	TileHeight int

	// 3D tile dimension
	TileDepth int

	// Tile offsets
	TileXOffset int
	TileYOffset int
	TileZOffset int

	// Component information
	ComponentCount int
	ComponentSpecs []Component3DSpec
}

type Slice struct {
	// Index is the slice index (Z coordinate).
	Index int

	// Width is the slice width.
	Width int

	// Height is the slice height.
	Height int

	// Components is the number of components.
	Components int

	// Data contains the slice pixel data.
	// Organized as [component][y][x] or interleaved depending on format.
	Data [][]byte
}

type Subband3D struct {
	// Type identifies the subband (LLL, LLH, etc.).
	Type int

	// Level is the decomposition level.
	Level int

	// Width is the subband width.
	Width int

	// Height is the subband height.
	Height int

	// Depth is the subband depth.
	Depth int

	// Data contains the wavelet coefficients.
	Data []int32
}

type Tile3D struct {
	// TileX is the tile X index.
	TileX int

	// TileY is the tile Y index.
	TileY int

	// TileZ is the tile Z index.
	TileZ int

	// Width is the tile width in samples.
	Width int

	// Height is the tile height in samples.
	Height int

	// Depth is the tile depth in samples.
	Depth int

	// Components contains per-component data.
	Components []*TileComponent3D
}

type TileComponent3D struct {
	// ComponentIndex is the component index.
	ComponentIndex int

	// Subbands contains the 3D wavelet subbands.
	Subbands []*Subband3D
}

type VolumeData struct {
	// Width is the volume width.
	Width int

	// Height is the volume height.
	Height int

	// Depth is the volume depth (number of slices).
	Depth int

	// Components is the number of components.
	Components int

	// Data contains the volume pixel data.
	// Organized as [z * width * height * components + y * width * components + x * components + c]
	Data []byte
}

type VolumeInfo struct {
	// Width is the volume width (X dimension).
	Width int

	// Height is the volume height (Y dimension).
	Height int

	// Depth is the volume depth (Z dimension / number of slices).
	Depth int

	// Components is the number of components.
	Components int

	// BitDepth is the sample bit depth.
	BitDepth int

	// Signed indicates if samples are signed.
	Signed bool

	// TileSize contains the 3D tile dimensions.
	TileSize [3]int

	// DecompositionLevels is the number of wavelet decomposition levels.
	DecompositionLevels int

	// IsReversible is true for lossless compression.
	IsReversible bool
}

type WaveletInverse3D struct {
	// Transform type: 0 = 9/7 irreversible, 1 = 5/3 reversible
	Transform int

	// XYLevels is the number of XY decomposition levels.
	XYLevels int

	// ZLevels is the number of Z decomposition levels.
	ZLevels int
}