a2264b130d
- Introduced a new performance module for the iced canvas to measure input queueing, engine drawing, CPU compositing/staging, GPU upload, and renderer preparation costs. - Implemented a performance probe in the egui reference renderer for comparative diagnostics. - Added methods to record durations, byte transfers, and input timestamps, enabling detailed performance analysis. - Enhanced the CanvasShaderPipeline with a new method to upload full textures without rebuilding GPU resources. - Updated the main application to conditionally log performance diagnostics based on an environment variable. - Created a performance plan document outlining steps to measure and optimize drawing performance in the iced application.