yasl.git/examples/hello.c, branch one-loop

Simplify the public API into one dense header

2026-10-14T10:56:48+00:00

yasl.h now holds everything except Vulkan: 45 functions instead of 62, and three installed headers instead of ten. - One constructor: yasl_surface_create takes CPU, GL or NATIVE, with zero-initialized GL options meaning 3.2 core, RGBA8, D24S8. - Events carry action, mods, x, y and text at the top level; pen positions are now logical like pointer positions. - yasl_cpu_pixels/yasl_cpu_present draw into one persistent canvas, cutting three full-frame copies per frame. - yasl_surface_get_info, yasl_surface_request, YASL_CURSOR_LOCKED, yasl_surface_set_text_input, yasl_surface_begin_move_resize and yasl_surface_get_native replace groups of narrower calls. - Interactive calls drop the decorative trigger event argument. - yasl_wait_event returns 0 only on timeout or yasl_wake, the refresh callback runs only in native modal loops, focus loss sends INPUT_RESET, and a lost event no longer fails every later wait. - Unsupported operations and bad arguments report ENOTSUP and EINVAL instead of EIO; the keycodes header no longer needs C23. - The shared library gets a versioned SONAME and version macros. Co-Authored-By: Claude Opus 5.5

Redefine public and rendering APIs with explicit contracts

2026-10-14T10:13:52+00:00

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

public api refactor

2026-10-13T18:23:03+00:00

Fill the hello window with an RGB gradient

2026-10-13T13:25:52+00:00

Red grows to the right, green downward, and blue fades as red grows. Rows now step by the frame's stride_bytes instead of assuming packed pixels. Co-Authored-By: Claude Opus 5.5

Quit on window close when the app has no event callback

2026-10-13T13:24:56+00:00

Without yasl_app_desc.event, a close request had nowhere to go and the window stayed open. The runner now stops instead, so hello drops its event callback. Co-Authored-By: Claude Opus 5.5

Describe the hello window from main

2026-10-13T12:43:04+00:00

hello no longer needs an init callback: main passes its window spec through yasl_app_desc.window. Co-Authored-By: Claude Opus 5.5

Drop the app state struct from the hello example

2026-10-13T12:41:39+00:00

hello only tracked a failure flag, so keep it as a file-scope static like simple_window and leave yasl_app_desc.userdata unset. Co-Authored-By: Claude Opus 5.5

Unify core and runner events into struct yasl_event

2026-10-13T12:41:39+00:00

The core input queue and the yasl_run() runner each had their own event type, and the runner translated one into the other. Both now share struct yasl_event in : yasl_surface_poll_event() returns the same events the app event callback receives, so the runner forwards them unchanged. Pointer input becomes POINTER_DOWN/UP/MOTION/SCROLL/LEAVE with a named yasl_pointer_button and a motion delta computed in the input queue. TEXT, PASTE and DROP share one text payload, scale changes fold into WINDOW_RESIZE, and every event carries a monotonic time_ns. yasl_surface_set_mouse_mode() is replaced by yasl_surface_set_pointer_mode(); no backend implements relative mode yet. The export check now only counts YASL_API declarations, so function pointer fields returning enum yasl_app_result are not mistaken for exports. Co-Authored-By: Claude Opus 5.5

Simplify surface state, examples, and library installation

2026-10-13T12:05:06+00:00