Show HN: High-Performance .NET Bindings for the Vello Sparse Strips CPU Renderer

Summary

Vello Sparse Strips .NET Bindings Status: Production Ready ✅ High-performance .NET 8.0 bindings for the Vello Sparse Strips CPU renderer with 100% API coverage. Project Structure SparseStrips/ ├── extern/vello/ # Git submodule - Vello upstream │ └── sparse_strips/ │ ├── vello_cpu/ # Core CPU renderer │ └── vello_common/ # Common utilities │ ├── vello_cpu_ffi/ # Rust C-ABI FFI wrapper │ ├── Cargo.toml │ ├── build.rs │ └── src/ │ └── lib.rs # FFI exports │ ├── dotnet/ # .NET bindings │ ├── src/ # Shipping packages │ │ ├── Vello.Native/ # P/Invoke layer (internal) │ │ ├── Vello/ # High-level C# API (public) │ │ └── Vello.Avalonia/ # Avalonia control + helpers (NuGet package) │ ├── samples/ # Demo applications │ │ ├── Vello.Samples/ # 15 example applications │ │ ├── Vello.Examples/ # CLI samples │ │ └── MTTest/ # Multithreading investigation harness │ └── tests/ # Automated + perf suites │ ├── Vello.Tests/ # 85 unit tests (95.3% passing) │ ├── Vello.DiagnosticTests/ # Deep diagnostics harness │ ├── Vello.Benchmarks/ # BenchmarkDotNet harness │ └── Vello.IntegrationTest/ # Package validation app │ ├── docs/ # Documentation │ ├── API_COVERAGE.md # Complete API coverage matrix │ ├── FFI_DESIGN.md # FFI architecture and design │ ├── IMPLEMENTATION_PLAN.md # Development phases │ └── STATUS.md # Project status │ └── README.md # This file Features ✅ 100% API Coverage - All 34 RenderContext methods implemented - All 34 RenderContext methods implemented ✅ Complete Feature Set - Images, gradients, blending, clipping, masking, glyphs - Images, gradients, blending, clipping, masking, glyphs ✅ Zero-Allocation Rendering - Span<T>/stackalloc for text, gradients, PNG I/O (Phase 1 & 2 complete) - for text, gradients, PNG I/O (Phase 1 & 2 complete) ✅ High Performance - Zero-copy pixel access via ReadOnlySpan<T> - Zero-copy pixel access via ✅ Modern .NET 8.0 - LibraryImport , blittable structs, Span<T> APIs - , blittable structs, APIs ✅ SIMD Support - SSE2, AVX, AVX2, AVX512, NEON - SSE2,...