wlroots/types/wlr_surface.c

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#include <assert.h>
#include <stdlib.h>
#include <wayland-server.h>
#include <wlr/util/log.h>
#include <wlr/render/interface.h>
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#include <wlr/types/wlr_surface.h>
static void surface_destroy(struct wl_client *client, struct wl_resource *resource) {
wl_resource_destroy(resource);
}
static void surface_attach(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *buffer, int32_t sx, int32_t sy) {
struct wlr_surface *surface = wl_resource_get_user_data(resource);
surface->pending_buffer = buffer;
surface->pending_attached = true;
}
static void surface_damage(struct wl_client *client,
struct wl_resource *resource,
int32_t x, int32_t y, int32_t width, int32_t height) {
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wlr_log(L_DEBUG, "damage: %dx%d@%d,%d", width, height, x, y);
}
static void destroy_frame_callback(struct wl_resource *resource) {
struct wlr_frame_callback *cb = wl_resource_get_user_data(resource);
wl_list_remove(&cb->link);
free(cb);
}
static void surface_frame(struct wl_client *client,
struct wl_resource *resource, uint32_t callback) {
struct wlr_frame_callback *cb;
struct wlr_surface *surface = wl_resource_get_user_data(resource);
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cb = malloc(sizeof(struct wlr_frame_callback));
if (cb == NULL) {
wl_resource_post_no_memory(resource);
return;
}
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cb->resource = wl_resource_create(client,
&wl_callback_interface, 1, callback);
if (cb->resource == NULL) {
free(cb);
wl_resource_post_no_memory(resource);
return;
}
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wl_resource_set_implementation(cb->resource,
NULL, cb, destroy_frame_callback);
wl_list_insert(surface->frame_callback_list.prev, &cb->link);
}
static void surface_set_opaque_region(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *region_resource) {
wlr_log(L_DEBUG, "TODO: surface opaque region");
}
static void surface_set_input_region(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *region_resource) {
wlr_log(L_DEBUG, "TODO: surface input region");
}
static void surface_commit(struct wl_client *client,
struct wl_resource *resource) {
struct wlr_surface *surface = wl_resource_get_user_data(resource);
// apply pending state
if (surface->pending_attached) {
surface->attached = surface->pending_buffer;
if (surface->pending_buffer) {
struct wl_shm_buffer *buffer = wl_shm_buffer_get(surface->pending_buffer);
if (!buffer) {
wlr_log(L_INFO, "Unknown buffer handle attached");
} else {
uint32_t format = wl_shm_buffer_get_format(buffer);
wlr_texture_upload_shm(surface->texture, format, buffer);
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wl_resource_queue_event(surface->pending_buffer, WL_BUFFER_RELEASE);
}
}
}
// reset pending state
surface->pending_buffer = NULL;
surface->pending_attached = false;
wl_signal_emit(&surface->signals.commit, surface);
}
static void surface_set_buffer_transform(struct wl_client *client,
struct wl_resource *resource, int transform) {
wlr_log(L_DEBUG, "TODO: surface surface buffer transform");
}
static void surface_set_buffer_scale(struct wl_client *client,
struct wl_resource *resource,
int32_t scale) {
wlr_log(L_DEBUG, "TODO: surface set buffer scale");
}
static void surface_damage_buffer(struct wl_client *client,
struct wl_resource *resource,
int32_t x, int32_t y, int32_t width,
int32_t height) {
wlr_log(L_DEBUG, "TODO: surface damage buffer");
}
const struct wl_surface_interface surface_interface = {
surface_destroy,
surface_attach,
surface_damage,
surface_frame,
surface_set_opaque_region,
surface_set_input_region,
surface_commit,
surface_set_buffer_transform,
surface_set_buffer_scale,
surface_damage_buffer
};
static void destroy_surface(struct wl_resource *resource) {
struct wlr_surface *surface = wl_resource_get_user_data(resource);
wl_signal_emit(&surface->signals.destroy, surface);
wlr_texture_destroy(surface->texture);
struct wlr_frame_callback *cb, *next;
wl_list_for_each_safe(cb, next, &surface->frame_callback_list, link) {
wl_resource_destroy(cb->resource);
}
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free(surface);
}
struct wlr_surface *wlr_surface_create(struct wl_resource *res,
struct wlr_renderer *renderer) {
struct wlr_surface *surface = calloc(1, sizeof(struct wlr_surface));
surface->texture = wlr_render_texture_init(renderer);
surface->resource = res;
wl_signal_init(&surface->signals.commit);
wl_signal_init(&surface->signals.destroy);
wl_list_init(&surface->frame_callback_list);
wl_resource_set_implementation(res, &surface_interface,
surface, destroy_surface);
return surface;
}