Module texture_resample 

Texture-based resampling using wgpu hardware samplers.

This module provides a TextureResampler that performs raster resampling using a wgpu::Sampler and a texture_2d<f32> binding rather than a flat array<f32> storage buffer. The hardware sampler handles filtering in a single texel-fetch instruction, which is dramatically faster than evaluating a bilinear/bicubic interpolation in WGSL.

When to use this path

Resampling method	Hardware-sampled?	Recommendation
NearestNeighbor	yes (Nearest)	use this module
Bilinear	yes (Linear)	use this module
Bicubic	fallback (Linear)	use this module if speed > Q
Lanczos { a }	no	use the compute-buffer path

For high-quality bicubic and Lanczos resampling, prefer the compute-buffer path in kernels::resampling which implements the full kernel mathematics.

Workflow

1. Upload source data as a sampleable wgpu::Texture with new_input_texture_r32float.
2. Construct a TextureResampler with the desired filter mode and destination format.
3. Create a destination storage texture with crate::storage_texture::new_storage_texture.
4. Dispatch the resampler with TextureResampler::dispatch.
5. Optionally download the result with crate::storage_texture::read_texture_to_vec_f32.

Structs

TextureResampler

A compiled compute kernel that resamples a sampleable source texture into a destination storage texture using a hardware sampler.

Enums

TextureFilterMethod

Hardware-sampler filtering mode for TextureResampler.

Functions

make_texture_resample_shader_source

Generate WGSL source for a texture-based resampling compute shader.

new_input_texture_r32float

Create a sampleable R32Float wgpu::Texture and upload data into it.

texture_filter_for_resampling

Maps a ResamplingMethod to the hardware-sampler filter that best approximates it.