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cursor: add support for animated XCursor

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This commit is contained in:
Simon Ser 2023-05-10 18:16:57 +02:00
parent 6dd8b092e9
commit d59749aa44
1 changed files with 48 additions and 9 deletions
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57
types/wlr_cursor.c
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@ -69,6 +69,8 @@ struct wlr_cursor_output_cursor {
// only when using an XCursor as the cursor image
struct wlr_xcursor *xcursor;
size_t xcursor_index;
struct wl_event_source *xcursor_timer;
};
struct wlr_cursor_state {
@ -138,8 +140,10 @@ struct wlr_cursor *wlr_cursor_create(void) {
return cur;
}
static void output_cursor_destroy(
struct wlr_cursor_output_cursor *output_cursor) {
static void cursor_output_cursor_reset_image(struct wlr_cursor_output_cursor *output_cursor);
static void output_cursor_destroy(struct wlr_cursor_output_cursor *output_cursor) {
cursor_output_cursor_reset_image(output_cursor);
wl_list_remove(&output_cursor->surface_destroy.link);
wl_list_remove(&output_cursor->surface_commit.link);
wl_list_remove(&output_cursor->output_commit.link);
@ -371,8 +375,7 @@ void wlr_cursor_move(struct wlr_cursor *cur, struct wlr_input_device *dev,
wlr_cursor_warp_closest(cur, dev, lx, ly);
}
static void cursor_output_cursor_reset_image(
struct wlr_cursor_output_cursor *output_cursor) {
static void cursor_output_cursor_reset_image(struct wlr_cursor_output_cursor *output_cursor) {
if (output_cursor->surface != NULL) {
wlr_surface_send_leave(output_cursor->surface,
output_cursor->output_cursor->output);
@ -386,6 +389,11 @@ static void cursor_output_cursor_reset_image(
output_cursor->surface = NULL;
output_cursor->xcursor = NULL;
output_cursor->xcursor_index = 0;
if (output_cursor->xcursor_timer != NULL) {
wl_event_source_remove(output_cursor->xcursor_timer);
}
output_cursor->xcursor_timer = NULL;
}
static void output_cursor_output_commit_surface(
@ -429,6 +437,41 @@ void wlr_cursor_unset_image(struct wlr_cursor *cur) {
wlr_cursor_set_image(cur, NULL, 0, 0, 0, 0, 0, 0);
}
static void output_cursor_set_xcursor_image(struct wlr_cursor_output_cursor *output_cursor, size_t i);
static int handle_xcursor_timer(void *data) {
struct wlr_cursor_output_cursor *output_cursor = data;
size_t i = (output_cursor->xcursor_index + 1) % output_cursor->xcursor->image_count;
output_cursor_set_xcursor_image(output_cursor, i);
return 0;
}
static void output_cursor_set_xcursor_image(struct wlr_cursor_output_cursor *output_cursor, size_t i) {
struct wlr_xcursor_image *image = output_cursor->xcursor->images[i];
wlr_output_cursor_set_image(output_cursor->output_cursor,
image->buffer, 4 * image->width, image->width, image->height,
image->hotspot_x, image->hotspot_y);
output_cursor->xcursor_index = i;
if (output_cursor->xcursor->image_count == 1 || image->delay == 0) {
return;
}
if (output_cursor->xcursor_timer == NULL) {
struct wl_event_loop *event_loop =
wl_display_get_event_loop(output_cursor->output_cursor->output->display);
output_cursor->xcursor_timer =
wl_event_loop_add_timer(event_loop, handle_xcursor_timer, output_cursor);
if (output_cursor->xcursor_timer == NULL) {
wlr_log(WLR_ERROR, "wl_event_loop_add_timer failed");
return;
}
}
wl_event_source_timer_update(output_cursor->xcursor_timer, image->delay);
}
void wlr_cursor_set_xcursor(struct wlr_cursor *cur,
struct wlr_xcursor_manager *manager, const char *name) {
struct wlr_cursor_output_cursor *output_cursor;
@ -442,11 +485,7 @@ void wlr_cursor_set_xcursor(struct wlr_cursor *cur,
cursor_output_cursor_reset_image(output_cursor);
output_cursor->xcursor = xcursor;
struct wlr_xcursor_image *image = xcursor->images[0];
wlr_output_cursor_set_image(output_cursor->output_cursor,
image->buffer, 4 * image->width, image->width, image->height,
image->hotspot_x, image->hotspot_y);
output_cursor_set_xcursor_image(output_cursor, 0);
}
}