#include "backend.h"

#if YASL_HAS_WAYLAND
#include "yasl/native/wayland.h"
#endif

#if YASL_HAS_X11
#include "yasl/native/x11.h"
#endif

#include <errno.h>

void *yasl_display_get_native_handle(struct yasl_display *d)
{
    return d && d->ops->display_get_native_handle ?
        d->ops->display_get_native_handle(d) : NULL;
}

void *yasl_surface_get_native_handle(struct yasl_surface *s)
{
    return s && s->display->ops->surface_get_native_handle ?
        s->display->ops->surface_get_native_handle(s) : NULL;
}

#if YASL_HAS_WAYLAND
struct wl_display *yasl_wayland_display_get_wl_display(struct yasl_display *d)
{
    return (d && yasl_display_backend(d) == YASL_BACKEND_WAYLAND) ?
        (struct wl_display *)yasl_display_get_native_handle(d) : NULL;
}

struct wl_surface *yasl_wayland_surface_get_wl_surface(struct yasl_surface *s)
{
    return (s && s->display && yasl_display_backend(s->display) == YASL_BACKEND_WAYLAND) ?
        (struct wl_surface *)yasl_surface_get_native_handle(s) : NULL;
}
#endif

#if YASL_HAS_X11
Display *yasl_x11_display_get_display(struct yasl_display *d)
{
    return (d && yasl_display_backend(d) == YASL_BACKEND_X11) ?
        (Display *)yasl_display_get_native_handle(d) : NULL;
}

uintptr_t yasl_x11_surface_get_window(struct yasl_surface *s)
{
    return (s && s->display && yasl_display_backend(s->display) == YASL_BACKEND_X11) ?
        (uintptr_t)yasl_surface_get_native_handle(s) : 0;
}
#endif

struct yasl_surface *yasl_surface_create_native(struct yasl_display *d,
        const struct yasl_surface_spec *spec, void *graphics_device)
{
    if (!graphics_device) {
        errno = EINVAL;
        return NULL;
    }
    return yasl_create_toplevel(d, spec, graphics_device);
}

bool yasl_surface_get_native_frame(struct yasl_surface *s,
        const struct yasl_framebuffer *target, struct yasl_native_frame *out)
{
    if (!s || !target || !out || !target->generation ||
        target->generation != s->frame_generation ||
        !s->display->ops->surface_get_native_frame)
        return false;
    return s->display->ops->surface_get_native_frame(s, target, out);
}