Simplify the public event and CPU API

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 <noreply@anthropic.com>

1 files changed, 0 insertions, 20 deletions

diff --git a/tests/common/test_hello_example.c b/tests/common/test_hello_example.c
deleted file mode 100644
index 350b3bb..0000000
--- a/tests/common/test_hello_example.c
+++ /dev/null
@@ -1,20 +0,0 @@
-/* Exercise hello's real frame callback; automated exit belongs in the test. */
-#define main hello_example_main
-#include "../../examples/hello.c"
-#undef main
-
-static void draw_once(void *ud, struct yasl_surface *surface, struct yasl_frame *frame)
-{
-    draw(ud, surface, frame);
-    if (!failed) yasl_surface_destroy(surface);
-}
-
-int main(void)
-{
-    struct yasl_window_spec window = {.title = "Hello YASL", .size = {640, 480}};
-    struct yasl_app_desc desc = {
-        .app_id = "org.yasl.test.hello", .window = &window,
-        .frame = draw_once,
-    };
-    return yasl_run(&desc) || failed ? 1 : 0;
-}