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Context A migration to Cairo 1.18.0 for HiDPI support involves using cairo_surface_set_device_scale() on image surfaces. The objective is to decouple the logical coordinate system from the native pixel buffer to maintain sharpness on high-density displays. Constraints and Uncertainty While the API adjusts the logical pixel ratio, it does not resize the under
Shader uniform type mismatch handling in Love2D The goal is to diagnose intermittent rendering artifacts that appear when a uniform is bound with a Lua value of an incompatible type. For example, setting a GLSL float uniform with a Lua string or passing a table with fewer elements than required for a vector uniform. Constraints include the fact that Love2D’s
Goal To render a high‑DPI image surface in Cairo while avoiding unintended double scaling when the current transformation matrix (CTM) already applies a scale factor. Constraints & Uncertainty Device scale is a surface‑level property that maps logical user coordinates to device pixels. It composes with the CTM, so if the CTM contains a scaling transforma
Concurrent rendering with shared cairo_t The goal is to enable safe concurrent drawing operations on a single Cairo surface from multiple threads. Cairo's documented contract treats cairo_t as single-threaded; the mutable path, source, and transformation state inside the context have no internal synchronization and assume exclusive access. While cairo_surfac
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