OxiGDAL GPU

GPU-accelerated geospatial operations for OxiGDAL using WGPU.

Features

• Cross-platform GPU support: Vulkan, Metal, DX12, WebGPU
• Element-wise operations: Add, subtract, multiply, divide, etc.
• Statistical operations: Parallel reduction, histogram, min/max
• Resampling: Nearest neighbor, bilinear, bicubic interpolation
• Convolution: Gaussian blur, edge detection, custom filters
• Pipeline API: Chain operations without CPU transfers
• Pure Rust: No C/C++ dependencies

Quick Start

use oxigdal_gpu::*;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Initialize GPU context
    let gpu = GpuContext::new().await?;

    // Create compute pipeline
    let data: Vec<f32> = vec![1.0; 1024 * 1024];
    let result = ComputePipeline::from_data(&gpu, &data, 1024, 1024)?
        .gaussian_blur(2.0)?
        .multiply(1.5)?
        .clamp(0.0, 255.0)?
        .read_blocking()?;

    Ok(())
}

Performance

GPU acceleration provides 10-100x speedup for large rasters:

Requirements

• Rust 1.85+
• GPU with Vulkan/Metal/DX12/WebGPU support

License

Apache-2.0