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https://github.com/hyprwm/wlroots-hyprland.git
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9b4be5a595
The noop backend is similar to headless, but it doesn't contain a renderer. It can be used as a place to stash views for when there's no physical outputs connected.
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/util/log.h>
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#include "backend/noop.h"
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#include "util/signal.h"
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static struct wlr_noop_output *noop_output_from_output(
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struct wlr_output *wlr_output) {
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assert(wlr_output_is_noop(wlr_output));
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return (struct wlr_noop_output *)wlr_output;
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}
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static void output_transform(struct wlr_output *wlr_output,
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enum wl_output_transform transform) {
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// empty
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}
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static bool output_make_current(struct wlr_output *wlr_output, int *buffer_age) {
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return true;
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}
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static bool output_swap_buffers(struct wlr_output *wlr_output,
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pixman_region32_t *damage) {
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return true;
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}
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static void output_destroy(struct wlr_output *wlr_output) {
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struct wlr_noop_output *output =
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noop_output_from_output(wlr_output);
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wl_list_remove(&output->link);
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free(output);
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}
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static const struct wlr_output_impl output_impl = {
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.transform = output_transform,
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.destroy = output_destroy,
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.make_current = output_make_current,
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.swap_buffers = output_swap_buffers,
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};
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bool wlr_output_is_noop(struct wlr_output *wlr_output) {
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return wlr_output->impl == &output_impl;
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}
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struct wlr_output *wlr_noop_add_output(struct wlr_backend *wlr_backend) {
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struct wlr_noop_backend *backend = noop_backend_from_backend(wlr_backend);
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struct wlr_noop_output *output = calloc(1, sizeof(struct wlr_noop_output));
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if (output == NULL) {
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wlr_log(WLR_ERROR, "Failed to allocate wlr_noop_output");
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return NULL;
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}
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output->backend = backend;
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wlr_output_init(&output->wlr_output, &backend->backend, &output_impl,
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backend->display);
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struct wlr_output *wlr_output = &output->wlr_output;
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strncpy(wlr_output->make, "noop", sizeof(wlr_output->make));
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strncpy(wlr_output->model, "noop", sizeof(wlr_output->model));
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snprintf(wlr_output->name, sizeof(wlr_output->name), "NOOP-%d",
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wl_list_length(&backend->outputs) + 1);
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wl_list_insert(&backend->outputs, &output->link);
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if (backend->started) {
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wlr_output_update_enabled(wlr_output, true);
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wlr_signal_emit_safe(&backend->backend.events.new_output, wlr_output);
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}
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return wlr_output;
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}
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