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-rw-r--r--examples/output-layers.c40
1 files changed, 38 insertions, 2 deletions
diff --git a/examples/output-layers.c b/examples/output-layers.c
index bc03ea66..d2f3c188 100644
--- a/examples/output-layers.c
+++ b/examples/output-layers.c
@@ -10,6 +10,8 @@
#include <wlr/render/allocator.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_compositor.h>
+#include <wlr/types/wlr_drm.h>
+#include <wlr/types/wlr_linux_dmabuf_v1.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_output_layer.h>
#include <wlr/types/wlr_xdg_shell.h>
@@ -27,6 +29,7 @@ struct server {
struct wlr_backend *backend;
struct wlr_renderer *renderer;
struct wlr_allocator *allocator;
+ struct wlr_linux_dmabuf_v1 *linux_dmabuf_v1;
struct wl_list outputs;
@@ -37,6 +40,7 @@ struct server {
struct output_surface {
struct wlr_surface *wlr_surface;
struct wlr_output_layer *layer;
+ struct server *server;
struct wl_list link;
int x, y;
@@ -46,6 +50,7 @@ struct output_surface {
struct wl_listener destroy;
struct wl_listener commit;
+ struct wl_listener layer_feedback;
};
struct output {
@@ -174,10 +179,11 @@ static void output_surface_handle_destroy(struct wl_listener *listener,
struct output_surface *output_surface =
wl_container_of(listener, output_surface, destroy);
wlr_buffer_unlock(output_surface->buffer);
- wlr_output_layer_destroy(output_surface->layer);
wl_list_remove(&output_surface->destroy.link);
wl_list_remove(&output_surface->commit.link);
+ wl_list_remove(&output_surface->layer_feedback.link);
wl_list_remove(&output_surface->link);
+ wlr_output_layer_destroy(output_surface->layer);
free(output_surface);
}
@@ -195,6 +201,26 @@ static void output_surface_handle_commit(struct wl_listener *listener,
output_surface->buffer = buffer;
}
+static void output_surface_handle_layer_feedback(struct wl_listener *listener,
+ void *data) {
+ struct output_surface *output_surface =
+ wl_container_of(listener, output_surface, layer_feedback);
+ const struct wlr_output_layer_feedback_event *event = data;
+
+ wlr_log(WLR_DEBUG, "Sending linux-dmabuf feedback to surface %p",
+ output_surface->wlr_surface);
+
+ struct wlr_linux_dmabuf_feedback_v1 feedback = {0};
+ const struct wlr_linux_dmabuf_feedback_v1_init_options options = {
+ .main_renderer = output_surface->server->renderer,
+ .output_layer_feedback_event = event,
+ };
+ wlr_linux_dmabuf_feedback_v1_init_with_options(&feedback, &options);
+ wlr_linux_dmabuf_v1_set_surface_feedback(output_surface->server->linux_dmabuf_v1,
+ output_surface->wlr_surface, &feedback);
+ wlr_linux_dmabuf_feedback_v1_finish(&feedback);
+}
+
static void server_handle_new_surface(struct wl_listener *listener,
void *data) {
struct server *server = wl_container_of(listener, server, new_surface);
@@ -204,12 +230,16 @@ static void server_handle_new_surface(struct wl_listener *listener,
wl_list_for_each(output, &server->outputs, link) {
struct output_surface *output_surface = calloc(1, sizeof(*output_surface));
output_surface->wlr_surface = wlr_surface;
+ output_surface->server = server;
output_surface->destroy.notify = output_surface_handle_destroy;
wl_signal_add(&wlr_surface->events.destroy, &output_surface->destroy);
output_surface->commit.notify = output_surface_handle_commit;
wl_signal_add(&wlr_surface->events.commit, &output_surface->commit);
output_surface->layer = wlr_output_layer_create(output->wlr_output);
+ output_surface->layer_feedback.notify = output_surface_handle_layer_feedback;
+ wl_signal_add(&output_surface->layer->events.feedback,
+ &output_surface->layer_feedback);
int pos = 50 * wl_list_length(&output->surfaces);
@@ -246,7 +276,13 @@ int main(int argc, char *argv[]) {
server.backend = wlr_backend_autocreate(server.wl_display, NULL);
server.renderer = wlr_renderer_autocreate(server.backend);
- wlr_renderer_init_wl_display(server.renderer, server.wl_display);
+ wlr_renderer_init_wl_shm(server.renderer, server.wl_display);
+
+ if (wlr_renderer_get_dmabuf_texture_formats(server.renderer) != NULL) {
+ wlr_drm_create(server.wl_display, server.renderer);
+ server.linux_dmabuf_v1 = wlr_linux_dmabuf_v1_create_with_renderer(
+ server.wl_display, 4, server.renderer);
+ }
server.allocator = wlr_allocator_autocreate(server.backend,
server.renderer);