yasl.git/src/common/utf8.c, branch main

Simplify the public event and CPU API

2026-10-13T20:41:31+00:00

Applications now need far less ceremony: hello.c is a 20-line loop that handles REFRESH, CLOSE and QUIT and draws into the surface's own pixels. - Fold GEOMETRY, STATE and FOCUS into one WINDOW event carrying size, scale and state; unchanged values send nothing. - Guarantee REFRESH once a window has a size and after every resize, never at size zero. - Merge DROP_HOVER into DROP with over/leave/data actions and give drag and drop actions enums. - Keep event strings valid until the next wait and drop yasl_event_release; empty or failed waits report NONE. - Replace copy-in presentation with a lent pixel buffer: yasl_cpu_pixels and yasl_cpu_present. - Remove yasl_poll_event, yasl_cpu_read_pixels, unused event fields and comments that restated names. - Wayland: resize floating windows in request_size instead of reporting it unsupported, and stop marking new GPU surfaces as Vulkan so yasl_vulkan_create_surface no longer fails with NATIVE_WINDOW_IN_USE. Also includes the in-progress public API refactor that was uncommitted in the tree (removal of the app/loop layer, new surface, GL and Vulkan entry points). Co-Authored-By: Claude Opus 5.5

better public interface and doxygen

2026-10-12T19:12:02+00:00

opt: shrink input event to 48B, pack mouse event to 32B, and shave 2KB off yasl_surface

2026-10-11T20:35:00+00:00

- Compact yasl_mouse_event from 36B to 32B (half a cacheline, 0 holes) - Compact yasl_input_event from 56B to 48B (0 holes) - Reduce yasl_surface by 2,048 bytes (shaving 32 full cachelines per surface) - Optimize UTF-8 sanitize with vectorized validation fast-path - Fast-path MIME prefix match in clipboard transfers

core: optimize struct layouts, eliminate branches, and fix event loop dispatch

2026-10-11T20:27:41+00:00

- Fix Wayland event loop lockout by properly decoupling read arming and adding poll-backed dispatching - Support standalone display lifecycle without requiring caller to manage a loop - Eliminate alignment holes across yasl_surface, yasl_display, seat, touch_point, and conn_drag using pahole - Replace branching state/button decoders with compile-time locked LUTs and branchless bitwise operations - Accelerate UTF-8 validation with 64-bit word scanning for ASCII runs

initial: Yet Another Surface Library (YASL) 0.1.0

2026-10-11T18:53:42+00:00

A minimal, modern desktop window surface library in C. Supports Wayland on Linux and Cocoa/Metal on macOS with presentation timing, fractional scaling, IME, and CSD.