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#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/util/log.h>
#include "backend/noop.h"
#include "util/signal.h"
static struct wlr_noop_output *noop_output_from_output(
struct wlr_output *wlr_output) {
assert(wlr_output_is_noop(wlr_output));
return (struct wlr_noop_output *)wlr_output;
}
static void output_transform(struct wlr_output *wlr_output,
enum wl_output_transform transform) {
// empty
}
static bool output_set_custom_mode(struct wlr_output *wlr_output,
int32_t width, int32_t height, int32_t refresh) {
wlr_output_update_custom_mode(wlr_output, width, height, refresh);
return true;
}
static bool output_attach_render(struct wlr_output *wlr_output,
int *buffer_age) {
return false;
}
static bool output_commit(struct wlr_output *wlr_output) {
return false;
}
static void output_destroy(struct wlr_output *wlr_output) {
struct wlr_noop_output *output =
noop_output_from_output(wlr_output);
wl_list_remove(&output->link);
free(output);
}
static const struct wlr_output_impl output_impl = {
.transform = output_transform,
.set_custom_mode = output_set_custom_mode,
.destroy = output_destroy,
.attach_render = output_attach_render,
.commit = output_commit,
};
bool wlr_output_is_noop(struct wlr_output *wlr_output) {
return wlr_output->impl == &output_impl;
}
struct wlr_output *wlr_noop_add_output(struct wlr_backend *wlr_backend) {
struct wlr_noop_backend *backend = noop_backend_from_backend(wlr_backend);
struct wlr_noop_output *output = calloc(1, sizeof(struct wlr_noop_output));
if (output == NULL) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_noop_output");
return NULL;
}
output->backend = backend;
wlr_output_init(&output->wlr_output, &backend->backend, &output_impl,
backend->display);
struct wlr_output *wlr_output = &output->wlr_output;
strncpy(wlr_output->make, "noop", sizeof(wlr_output->make));
strncpy(wlr_output->model, "noop", sizeof(wlr_output->model));
snprintf(wlr_output->name, sizeof(wlr_output->name), "NOOP-%zd",
++backend->last_output_num);
wl_list_insert(&backend->outputs, &output->link);
if (backend->started) {
wlr_output_update_enabled(wlr_output, true);
wlr_signal_emit_safe(&backend->backend.events.new_output, wlr_output);
}
return wlr_output;
}
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