backend/multi: implement get_buffer_caps
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7c10a77e0a
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70e8277175
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@ -5,7 +5,9 @@
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#include <time.h>
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#include <time.h>
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#include <wlr/backend/interface.h>
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#include <wlr/backend/interface.h>
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#include <wlr/backend/session.h>
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#include <wlr/backend/session.h>
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#include <wlr/types/wlr_buffer.h>
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#include <wlr/util/log.h>
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#include <wlr/util/log.h>
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#include "backend/backend.h"
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#include "backend/multi.h"
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#include "backend/multi.h"
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#include "util/signal.h"
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#include "util/signal.h"
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@ -109,6 +111,28 @@ static int multi_backend_get_drm_fd(struct wlr_backend *backend) {
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return -1;
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return -1;
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}
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}
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static uint32_t multi_backend_get_buffer_caps(struct wlr_backend *backend) {
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struct wlr_multi_backend *multi = multi_backend_from_backend(backend);
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if (wl_list_empty(&multi->backends)) {
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return 0;
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}
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uint32_t caps = WLR_BUFFER_CAP_DATA_PTR | WLR_BUFFER_CAP_DMABUF
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| WLR_BUFFER_CAP_SHM;
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struct subbackend_state *sub;
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wl_list_for_each(sub, &multi->backends, link) {
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uint32_t backend_caps = backend_get_buffer_caps(sub->backend);
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if (backend_caps != 0) {
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// only count backend capable of presenting a buffer
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caps = caps & backend_caps;
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}
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}
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return caps;
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}
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static const struct wlr_backend_impl backend_impl = {
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static const struct wlr_backend_impl backend_impl = {
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.start = multi_backend_start,
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.start = multi_backend_start,
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.destroy = multi_backend_destroy,
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.destroy = multi_backend_destroy,
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@ -116,6 +140,7 @@ static const struct wlr_backend_impl backend_impl = {
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.get_session = multi_backend_get_session,
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.get_session = multi_backend_get_session,
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.get_presentation_clock = multi_backend_get_presentation_clock,
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.get_presentation_clock = multi_backend_get_presentation_clock,
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.get_drm_fd = multi_backend_get_drm_fd,
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.get_drm_fd = multi_backend_get_drm_fd,
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.get_buffer_caps = multi_backend_get_buffer_caps,
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};
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};
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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