Struct TransformOperation 

pub struct TransformOperation;

Transform operations for frequency domain processing

Implementations

impl TransformOperation

pub fn dct_2d( device: &GpuDevice, input: &[f32], output: &mut [f32], width: u32, height: u32, ) -> Result<()>

Compute 2D DCT (Discrete Cosine Transform)

Computes the forward DCT on 8x8 blocks. Input dimensions must be multiples of 8.

Arguments

• device - GPU device
• input - Input data (f32 values)
• output - Output DCT coefficients
• width - Data width (must be multiple of 8)
• height - Data height (must be multiple of 8)

Errors

Returns an error if dimensions are invalid or if the GPU operation fails.

pub fn idct_2d( device: &GpuDevice, input: &[f32], output: &mut [f32], width: u32, height: u32, ) -> Result<()>

Compute 2D IDCT (Inverse Discrete Cosine Transform)

Computes the inverse DCT on 8x8 blocks. Input dimensions must be multiples of 8.

Arguments

• device - GPU device
• input - Input DCT coefficients
• output - Output reconstructed data
• width - Data width (must be multiple of 8)
• height - Data height (must be multiple of 8)

Errors

Returns an error if dimensions are invalid or if the GPU operation fails.

pub fn dct_2d_general( device: &GpuDevice, input: &[f32], output: &mut [f32], width: u32, height: u32, ) -> Result<()>

Compute general 2D DCT using row-column decomposition

This method works for any dimensions, not just multiples of 8.

Arguments

• device - GPU device
• input - Input data (f32 values)
• output - Output DCT coefficients
• width - Data width
• height - Data height

Errors

Returns an error if dimensions are invalid or if the GPU operation fails.