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, 25 insertions, 25 deletions

diff --git a/src/platform/wayland/api.h b/src/platform/wayland/api.h
index 0f935b2..9670af1 100644
--- a/src/platform/wayland/api.h
+++ b/src/platform/wayland/api.h
@@ -1,48 +1,48 @@
-#ifndef YASL_WAYLAND_API_H
-#define YASL_WAYLAND_API_H
+#ifndef YASL_PRIVATE_WAYLAND_API_H
+#define YASL_PRIVATE_WAYLAND_API_H
 
-#include "yasl/yasl.h"
+#include "common/types.h"
 
 struct wayland_display;
 struct wayland_surface;
 
-struct wayland_display *wayland_display_open(struct yasl_loop *loop, const struct yasl_display_spec *spec);
+struct wayland_display *wayland_display_open(struct yasl_private_loop *loop, const struct yasl_private_display_spec *spec);
 void wayland_display_close(struct wayland_display *d);
 uint32_t wayland_display_caps(const struct wayland_display *d);
 int wayland_display_dispatch_timeout(struct wayland_display *d, int timeout_ms);
 void wayland_display_flush(struct wayland_display *d);
 int wayland_display_modifiers(const struct wayland_display *d);
-void wayland_display_copy(struct wayland_display *d, enum yasl_selection sel, const char *text);
-void wayland_display_paste(struct wayland_display *d, enum yasl_selection sel, struct wayland_surface *target);
-bool wayland_display_copy_text(struct wayland_display *d, enum yasl_selection sel, const char *text);
-bool wayland_display_request_paste(struct wayland_display *d, enum yasl_selection sel,
+void wayland_display_copy(struct wayland_display *d, enum yasl_private_selection sel, const char *text);
+void wayland_display_paste(struct wayland_display *d, enum yasl_private_selection sel, struct wayland_surface *target);
+bool wayland_display_copy_text(struct wayland_display *d, enum yasl_private_selection sel, const char *text);
+bool wayland_display_request_paste(struct wayland_display *d, enum yasl_private_selection sel,
                                    struct wayland_surface *target, uint64_t request_id);
-bool wayland_display_drag_start(struct wayland_display *d, struct wayland_surface *origin, const struct yasl_drag_image *image, const struct yasl_drag_listener *l, void *ud);
+bool wayland_display_drag_start(struct wayland_display *d, struct wayland_surface *origin, const struct yasl_private_drag_image *image, const struct yasl_private_drag_listener *l, void *ud);
 void wayland_display_drag_cancel(struct wayland_display *d);
 struct wayland_surface *wayland_surface_create_toplevel(struct wayland_display *d,
-        const struct yasl_window_spec *spec, void *graphics_device);
-struct wayland_surface *wayland_surface_create_popup(struct wayland_surface *parent, const struct yasl_popup_spec *spec);
-bool wayland_surface_popup_reposition(struct wayland_surface *popup, const struct yasl_popup_spec *spec);
+        const struct yasl_private_window_spec *spec, void *graphics_device);
+struct wayland_surface *wayland_surface_create_popup(struct wayland_surface *parent, const struct yasl_private_popup_spec *spec);
+bool wayland_surface_popup_reposition(struct wayland_surface *popup, const struct yasl_private_popup_spec *spec);
 void wayland_surface_destroy(struct wayland_surface *s);
-void wayland_surface_set_callbacks(struct wayland_surface *s, const struct yasl_window_cbs *cbs, void *ud);
+void wayland_surface_set_callbacks(struct wayland_surface *s, const struct yasl_private_window_cbs *cbs, void *ud);
 void wayland_surface_set_title(struct wayland_surface *s, const char *title);
 void wayland_surface_schedule_redraw(struct wayland_surface *s);
-bool wayland_surface_present(struct wayland_surface *s, const struct yasl_framebuffer *fb, const struct yasl_damage_list *damage);
-bool wayland_surface_poll_event(struct wayland_surface *s, struct yasl_event *ev);
-struct yasl_geometry wayland_surface_geometry(const struct wayland_surface *s);
-struct yasl_timing wayland_surface_timing(const struct wayland_surface *s);
-void wayland_surface_set_cursor(struct wayland_surface *s, enum yasl_cursor cursor);
-bool wayland_surface_set_pointer_mode(struct wayland_surface *s, enum yasl_pointer_mode mode);
+bool wayland_surface_present(struct wayland_surface *s, const struct yasl_private_framebuffer *fb, const struct yasl_private_damage_list *damage);
+bool wayland_surface_poll_event(struct wayland_surface *s, struct yasl_private_event *ev);
+struct yasl_private_geometry wayland_surface_geometry(const struct wayland_surface *s);
+struct yasl_private_timing wayland_surface_timing(const struct wayland_surface *s);
+void wayland_surface_set_cursor(struct wayland_surface *s, enum yasl_private_cursor cursor);
+bool wayland_surface_set_pointer_mode(struct wayland_surface *s, enum yasl_private_pointer_mode mode);
 void wayland_surface_set_background_color(struct wayland_surface *s, uint32_t bg);
 bool wayland_surface_ime_preedit_cursor(const struct wayland_surface *s, int *begin, int *end);
-void wayland_surface_set_ime_caret(struct wayland_surface *s, struct yasl_rect2i caret);
+void wayland_surface_set_ime_caret(struct wayland_surface *s, struct yasl_private_rect2i caret);
 bool wayland_surface_start_interactive_move(struct wayland_surface *s);
-bool wayland_surface_start_interactive_resize(struct wayland_surface *s, enum yasl_resize_edge edge);
-bool wayland_surface_show_window_menu(struct wayland_surface *s, struct yasl_vector2i pos);
-bool wayland_surface_drag_carry(struct wayland_surface *s, struct yasl_vector2i offset);
-bool wayland_surface_place_under_pointer(struct wayland_surface *s, struct yasl_vector2i at);
+bool wayland_surface_start_interactive_resize(struct wayland_surface *s, enum yasl_private_resize_edge edge);
+bool wayland_surface_show_window_menu(struct wayland_surface *s, struct yasl_private_vector2i pos);
+bool wayland_surface_drag_carry(struct wayland_surface *s, struct yasl_private_vector2i offset);
+bool wayland_surface_place_under_pointer(struct wayland_surface *s, struct yasl_private_vector2i at);
 bool wayland_surface_bell(struct wayland_surface *s);
 bool wayland_surface_read_pixels(struct wayland_surface *s, uint32_t *out, size_t cap,
-                                 struct yasl_vector2i *size);
+                                 struct yasl_private_vector2i *size);
 
 #endif