output: do nothing in output_set_image if backend has no renderer
This is useful when using the noop backend for example.
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@ -722,7 +722,11 @@ bool wlr_output_cursor_set_image(struct wlr_output_cursor *cursor,
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int32_t hotspot_x, int32_t hotspot_y) {
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struct wlr_renderer *renderer =
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wlr_backend_get_renderer(cursor->output->backend);
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assert(renderer);
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if (!renderer) {
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// if the backend has no renderer, we can't draw a cursor, but this is
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// actually okay, for ex. with the noop backend
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return true;
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}
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output_cursor_reset(cursor);
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