74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
#include <assert.h>
|
|
#include <string.h>
|
|
#include <wayland-server.h>
|
|
#include <wlr/interfaces/wlr_buffer.h>
|
|
#include <wlr/types/wlr_drm.h>
|
|
#include <wlr/util/log.h>
|
|
#include "types/wlr_buffer.h"
|
|
|
|
bool wlr_resource_is_buffer(struct wl_resource *resource) {
|
|
return strcmp(wl_resource_get_class(resource), wl_buffer_interface.name) == 0;
|
|
}
|
|
|
|
/* struct wlr_buffer_resource_interface */
|
|
static struct wl_array buffer_resource_interfaces = {0};
|
|
|
|
void wlr_buffer_register_resource_interface(
|
|
const struct wlr_buffer_resource_interface *iface) {
|
|
assert(iface);
|
|
assert(iface->is_instance);
|
|
assert(iface->from_resource);
|
|
|
|
const struct wlr_buffer_resource_interface **iface_ptr;
|
|
wl_array_for_each(iface_ptr, &buffer_resource_interfaces) {
|
|
if (*iface_ptr == iface) {
|
|
wlr_log(WLR_DEBUG, "wlr_resource_buffer_interface %s has already"
|
|
"been registered", iface->name);
|
|
return;
|
|
}
|
|
}
|
|
|
|
iface_ptr = wl_array_add(&buffer_resource_interfaces, sizeof(iface));
|
|
*iface_ptr = iface;
|
|
}
|
|
|
|
static const struct wlr_buffer_resource_interface *get_buffer_resource_iface(
|
|
struct wl_resource *resource) {
|
|
struct wlr_buffer_resource_interface **iface_ptr;
|
|
wl_array_for_each(iface_ptr, &buffer_resource_interfaces) {
|
|
if ((*iface_ptr)->is_instance(resource)) {
|
|
return *iface_ptr;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
struct wlr_buffer *wlr_buffer_from_resource(struct wl_resource *resource) {
|
|
assert(resource && wlr_resource_is_buffer(resource));
|
|
|
|
struct wlr_buffer *buffer;
|
|
if (wlr_drm_buffer_is_resource(resource)) {
|
|
struct wlr_drm_buffer *drm_buffer =
|
|
wlr_drm_buffer_from_resource(resource);
|
|
buffer = wlr_buffer_lock(&drm_buffer->base);
|
|
} else {
|
|
const struct wlr_buffer_resource_interface *iface =
|
|
get_buffer_resource_iface(resource);
|
|
if (!iface) {
|
|
wlr_log(WLR_ERROR, "Unknown buffer type");
|
|
return NULL;
|
|
}
|
|
|
|
struct wlr_buffer *custom_buffer = iface->from_resource(resource);
|
|
if (!custom_buffer) {
|
|
wlr_log(WLR_ERROR, "Failed to create %s buffer", iface->name);
|
|
return NULL;
|
|
}
|
|
|
|
buffer = wlr_buffer_lock(custom_buffer);
|
|
}
|
|
|
|
return buffer;
|
|
}
|