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multi-backend: do not expose internal renderers
backend_get_renderer() is now returning the renderer of the primary GPU, instead of its own renderer, since that's the thing which actually does all of the "real" rendering wlr_multi_backend_add() is now adding all subbackends (otherwise only one GPU is handled). credits: @ascent12
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2 changed files with 7 additions and 2 deletions
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@ -51,7 +51,12 @@ static void backend_destroy(struct wlr_backend *backend) {
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static struct wlr_renderer *backend_get_renderer(
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struct wlr_backend *backend) {
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struct wlr_drm_backend *drm = (struct wlr_drm_backend *)backend;
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return drm->renderer.wlr_rend;
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if (drm->parent) {
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return drm->parent->renderer.wlr_rend;
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} else {
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return drm->renderer.wlr_rend;
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}
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}
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static struct wlr_backend_impl backend_impl = {
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@ -143,7 +143,7 @@ bool wlr_multi_backend_add(struct wlr_backend *_multi,
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struct wlr_renderer *multi_renderer =
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multi_backend_get_renderer(&multi->backend);
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struct wlr_renderer *backend_renderer = wlr_backend_get_renderer(backend);
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if (multi_renderer != NULL && backend_renderer != NULL) {
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if (multi_renderer != NULL && backend_renderer != NULL && multi_renderer != backend_renderer) {
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wlr_log(WLR_ERROR, "Could not add backend: multiple renderers at the "
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"same time aren't supported");
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return false;
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