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cursor: add wlr_cursor_set_xcursor()

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This keeps track of the last set XCursor. If it hasn't changed,
skip the texture upload.

In the future, support for animated XCursors can be added.

Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3436
This commit is contained in:
Simon Ser 2023-06-05 15:31:57 +02:00
parent 58a2f8bd5c
commit da04b066ea
4 changed files with 40 additions and 4 deletions
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27
types/wlr_cursor.c
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@ -11,6 +11,7 @@
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_tablet_tool.h>
#include <wlr/types/wlr_touch.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/util/box.h>
#include <wlr/util/log.h>
#include "types/wlr_output.h"
@ -65,6 +66,9 @@ struct wlr_cursor_output_cursor {
struct wl_listener surface_commit;
struct wl_listener surface_destroy;
struct wl_listener output_commit;
// only when using an XCursor as the cursor image
struct wlr_xcursor *xcursor;
};
struct wlr_cursor_state {
@ -380,6 +384,8 @@ static void cursor_output_cursor_reset_image(
wl_list_init(&output_cursor->surface_commit.link);
wl_list_init(&output_cursor->output_commit.link);
output_cursor->surface = NULL;
output_cursor->xcursor = NULL;
}
static void output_cursor_output_commit_surface(
@ -419,6 +425,27 @@ void wlr_cursor_set_image(struct wlr_cursor *cur, const uint8_t *pixels,
}
}
void wlr_cursor_set_xcursor(struct wlr_cursor *cur,
struct wlr_xcursor_manager *manager, const char *name) {
struct wlr_cursor_output_cursor *output_cursor;
wl_list_for_each(output_cursor, &cur->state->output_cursors, link) {
float scale = output_cursor->output_cursor->output->scale;
wlr_xcursor_manager_load(manager, scale);
struct wlr_xcursor *xcursor = wlr_xcursor_manager_get_xcursor(manager, name, scale);
if (xcursor == NULL || output_cursor->xcursor == xcursor) {
continue;
}
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);
}
}
static void output_cursor_output_handle_surface_destroy(
struct wl_listener *listener, void *data) {
struct wlr_cursor_output_cursor *output_cursor =