Simplify the public API into one dense header

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 <noreply@anthropic.com>

1 files changed, 1 insertions, 8 deletions

diff --git a/tests/meson.build b/tests/meson.build
index e34f072..7e1940e 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -15,17 +15,10 @@ if add_languages('cpp', native: false, required: false)
             '-DYASL_HAS_COCOA=' + (has_cocoa ? '1' : '0')], override_options: ['cpp_std=c++11'])
     test('cpp-api', cpp_api)
 endif
-headers = files('../include/yasl/yasl.h', '../include/yasl/cpu.h', '../include/yasl/gl.h',
-    '../include/yasl/metal.h', '../include/yasl/desktop.h')
+headers = files('../include/yasl/yasl.h')
 if has_vulkan
     headers += files('../include/yasl/vulkan.h')
 endif
-foreach backend : ['wayland', 'x11', 'cocoa']
-    enabled = {'wayland': has_wayland, 'x11': has_x11, 'cocoa': has_cocoa}[backend]
-    if enabled
-        headers += files('../include/yasl/native/' + backend + '.h')
-    endif
-endforeach
 nm = find_program('nm')
 export_args = ['--platform=' + system]
 if get_option('b_sanitize').contains('address')