weston/compositor/main.c
Ucan, Emre (ADITG/SW1) 38ea2d2254 compositor-drm: remove connector option
Remove the option, because it is hard to use.
Drm connector ids are hard to reach for users,
and they can change when kernel or device tree
is modified.

Signed-off-by: Emre Ucan <eucan@de.adit-jv.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
[Pekka: bump WESTON_DRM_BACKEND_CONFIG_VERSION]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2017-09-04 15:47:03 +03:00

2004 lines
51 KiB
C

/*
* Copyright © 2010-2011 Intel Corporation
* Copyright © 2008-2011 Kristian Høgsberg
* Copyright © 2012-2015 Collabora, Ltd.
* Copyright © 2010-2011 Benjamin Franzke
* Copyright © 2013 Jason Ekstrand
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "config.h"
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <dlfcn.h>
#include <stdint.h>
#include <string.h>
#include <sys/utsname.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <libinput.h>
#include <sys/time.h>
#include <linux/limits.h>
#ifdef HAVE_LIBUNWIND
#define UNW_LOCAL_ONLY
#include <libunwind.h>
#endif
#include "weston.h"
#include "compositor.h"
#include "../shared/os-compatibility.h"
#include "../shared/helpers.h"
#include "../shared/string-helpers.h"
#include "git-version.h"
#include "version.h"
#include "weston.h"
#include "compositor-drm.h"
#include "compositor-headless.h"
#include "compositor-rdp.h"
#include "compositor-fbdev.h"
#include "compositor-x11.h"
#include "compositor-wayland.h"
#include "windowed-output-api.h"
#define WINDOW_TITLE "Weston Compositor"
struct wet_output_config {
int width;
int height;
int32_t scale;
uint32_t transform;
};
struct wet_compositor {
struct weston_config *config;
struct wet_output_config *parsed_options;
struct wl_listener pending_output_listener;
bool drm_use_current_mode;
};
static FILE *weston_logfile = NULL;
static int cached_tm_mday = -1;
static int weston_log_timestamp(void)
{
struct timeval tv;
struct tm *brokendown_time;
char string[128];
gettimeofday(&tv, NULL);
brokendown_time = localtime(&tv.tv_sec);
if (brokendown_time == NULL)
return fprintf(weston_logfile, "[(NULL)localtime] ");
if (brokendown_time->tm_mday != cached_tm_mday) {
strftime(string, sizeof string, "%Y-%m-%d %Z", brokendown_time);
fprintf(weston_logfile, "Date: %s\n", string);
cached_tm_mday = brokendown_time->tm_mday;
}
strftime(string, sizeof string, "%H:%M:%S", brokendown_time);
return fprintf(weston_logfile, "[%s.%03li] ", string, tv.tv_usec/1000);
}
static void
custom_handler(const char *fmt, va_list arg)
{
weston_log_timestamp();
fprintf(weston_logfile, "libwayland: ");
vfprintf(weston_logfile, fmt, arg);
}
static void
weston_log_file_open(const char *filename)
{
wl_log_set_handler_server(custom_handler);
if (filename != NULL) {
weston_logfile = fopen(filename, "a");
if (weston_logfile)
os_fd_set_cloexec(fileno(weston_logfile));
}
if (weston_logfile == NULL)
weston_logfile = stderr;
else
setvbuf(weston_logfile, NULL, _IOLBF, 256);
}
static void
weston_log_file_close(void)
{
if ((weston_logfile != stderr) && (weston_logfile != NULL))
fclose(weston_logfile);
weston_logfile = stderr;
}
static int
vlog(const char *fmt, va_list ap)
{
int l;
l = weston_log_timestamp();
l += vfprintf(weston_logfile, fmt, ap);
return l;
}
static int
vlog_continue(const char *fmt, va_list argp)
{
return vfprintf(weston_logfile, fmt, argp);
}
static struct wl_list child_process_list;
static struct weston_compositor *segv_compositor;
static int
sigchld_handler(int signal_number, void *data)
{
struct weston_process *p;
int status;
pid_t pid;
while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
wl_list_for_each(p, &child_process_list, link) {
if (p->pid == pid)
break;
}
if (&p->link == &child_process_list) {
weston_log("unknown child process exited\n");
continue;
}
wl_list_remove(&p->link);
p->cleanup(p, status);
}
if (pid < 0 && errno != ECHILD)
weston_log("waitpid error %m\n");
return 1;
}
#ifdef HAVE_LIBUNWIND
static void
print_backtrace(void)
{
unw_cursor_t cursor;
unw_context_t context;
unw_word_t off;
unw_proc_info_t pip;
int ret, i = 0;
char procname[256];
const char *filename;
Dl_info dlinfo;
pip.unwind_info = NULL;
ret = unw_getcontext(&context);
if (ret) {
weston_log("unw_getcontext: %d\n", ret);
return;
}
ret = unw_init_local(&cursor, &context);
if (ret) {
weston_log("unw_init_local: %d\n", ret);
return;
}
ret = unw_step(&cursor);
while (ret > 0) {
ret = unw_get_proc_info(&cursor, &pip);
if (ret) {
weston_log("unw_get_proc_info: %d\n", ret);
break;
}
ret = unw_get_proc_name(&cursor, procname, 256, &off);
if (ret && ret != -UNW_ENOMEM) {
if (ret != -UNW_EUNSPEC)
weston_log("unw_get_proc_name: %d\n", ret);
procname[0] = '?';
procname[1] = 0;
}
if (dladdr((void *)(pip.start_ip + off), &dlinfo) && dlinfo.dli_fname &&
*dlinfo.dli_fname)
filename = dlinfo.dli_fname;
else
filename = "?";
weston_log("%u: %s (%s%s+0x%x) [%p]\n", i++, filename, procname,
ret == -UNW_ENOMEM ? "..." : "", (int)off, (void *)(pip.start_ip + off));
ret = unw_step(&cursor);
if (ret < 0)
weston_log("unw_step: %d\n", ret);
}
}
#else
static void
print_backtrace(void)
{
void *buffer[32];
int i, count;
Dl_info info;
count = backtrace(buffer, ARRAY_LENGTH(buffer));
for (i = 0; i < count; i++) {
dladdr(buffer[i], &info);
weston_log(" [%016lx] %s (%s)\n",
(long) buffer[i],
info.dli_sname ? info.dli_sname : "--",
info.dli_fname);
}
}
#endif
static void
child_client_exec(int sockfd, const char *path)
{
int clientfd;
char s[32];
sigset_t allsigs;
/* do not give our signal mask to the new process */
sigfillset(&allsigs);
sigprocmask(SIG_UNBLOCK, &allsigs, NULL);
/* Launch clients as the user. Do not lauch clients with wrong euid.*/
if (seteuid(getuid()) == -1) {
weston_log("compositor: failed seteuid\n");
return;
}
/* SOCK_CLOEXEC closes both ends, so we dup the fd to get a
* non-CLOEXEC fd to pass through exec. */
clientfd = dup(sockfd);
if (clientfd == -1) {
weston_log("compositor: dup failed: %m\n");
return;
}
snprintf(s, sizeof s, "%d", clientfd);
setenv("WAYLAND_SOCKET", s, 1);
if (execl(path, path, NULL) < 0)
weston_log("compositor: executing '%s' failed: %m\n",
path);
}
WL_EXPORT struct wl_client *
weston_client_launch(struct weston_compositor *compositor,
struct weston_process *proc,
const char *path,
weston_process_cleanup_func_t cleanup)
{
int sv[2];
pid_t pid;
struct wl_client *client;
weston_log("launching '%s'\n", path);
if (os_socketpair_cloexec(AF_UNIX, SOCK_STREAM, 0, sv) < 0) {
weston_log("weston_client_launch: "
"socketpair failed while launching '%s': %m\n",
path);
return NULL;
}
pid = fork();
if (pid == -1) {
close(sv[0]);
close(sv[1]);
weston_log("weston_client_launch: "
"fork failed while launching '%s': %m\n", path);
return NULL;
}
if (pid == 0) {
child_client_exec(sv[1], path);
_exit(-1);
}
close(sv[1]);
client = wl_client_create(compositor->wl_display, sv[0]);
if (!client) {
close(sv[0]);
weston_log("weston_client_launch: "
"wl_client_create failed while launching '%s'.\n",
path);
return NULL;
}
proc->pid = pid;
proc->cleanup = cleanup;
weston_watch_process(proc);
return client;
}
WL_EXPORT void
weston_watch_process(struct weston_process *process)
{
wl_list_insert(&child_process_list, &process->link);
}
struct process_info {
struct weston_process proc;
char *path;
};
static void
process_handle_sigchld(struct weston_process *process, int status)
{
struct process_info *pinfo =
container_of(process, struct process_info, proc);
/*
* There are no guarantees whether this runs before or after
* the wl_client destructor.
*/
if (WIFEXITED(status)) {
weston_log("%s exited with status %d\n", pinfo->path,
WEXITSTATUS(status));
} else if (WIFSIGNALED(status)) {
weston_log("%s died on signal %d\n", pinfo->path,
WTERMSIG(status));
} else {
weston_log("%s disappeared\n", pinfo->path);
}
free(pinfo->path);
free(pinfo);
}
WL_EXPORT struct wl_client *
weston_client_start(struct weston_compositor *compositor, const char *path)
{
struct process_info *pinfo;
struct wl_client *client;
pinfo = zalloc(sizeof *pinfo);
if (!pinfo)
return NULL;
pinfo->path = strdup(path);
if (!pinfo->path)
goto out_free;
client = weston_client_launch(compositor, &pinfo->proc, path,
process_handle_sigchld);
if (!client)
goto out_str;
return client;
out_str:
free(pinfo->path);
out_free:
free(pinfo);
return NULL;
}
static void
log_uname(void)
{
struct utsname usys;
uname(&usys);
weston_log("OS: %s, %s, %s, %s\n", usys.sysname, usys.release,
usys.version, usys.machine);
}
static struct wet_compositor *
to_wet_compositor(struct weston_compositor *compositor)
{
return weston_compositor_get_user_data(compositor);
}
static void
wet_set_pending_output_handler(struct weston_compositor *ec,
wl_notify_func_t handler)
{
struct wet_compositor *compositor = to_wet_compositor(ec);
compositor->pending_output_listener.notify = handler;
wl_signal_add(&ec->output_pending_signal, &compositor->pending_output_listener);
}
static struct wet_output_config *
wet_init_parsed_options(struct weston_compositor *ec)
{
struct wet_compositor *compositor = to_wet_compositor(ec);
struct wet_output_config *config;
config = zalloc(sizeof *config);
if (!config) {
perror("out of memory");
return NULL;
}
config->width = 0;
config->height = 0;
config->scale = 0;
config->transform = UINT32_MAX;
compositor->parsed_options = config;
return config;
}
WL_EXPORT struct weston_config *
wet_get_config(struct weston_compositor *ec)
{
struct wet_compositor *compositor = to_wet_compositor(ec);
return compositor->config;
}
static const char xdg_error_message[] =
"fatal: environment variable XDG_RUNTIME_DIR is not set.\n";
static const char xdg_wrong_message[] =
"fatal: environment variable XDG_RUNTIME_DIR\n"
"is set to \"%s\", which is not a directory.\n";
static const char xdg_wrong_mode_message[] =
"warning: XDG_RUNTIME_DIR \"%s\" is not configured\n"
"correctly. Unix access mode must be 0700 (current mode is %o),\n"
"and must be owned by the user (current owner is UID %d).\n";
static const char xdg_detail_message[] =
"Refer to your distribution on how to get it, or\n"
"http://www.freedesktop.org/wiki/Specifications/basedir-spec\n"
"on how to implement it.\n";
static void
verify_xdg_runtime_dir(void)
{
char *dir = getenv("XDG_RUNTIME_DIR");
struct stat s;
if (!dir) {
weston_log(xdg_error_message);
weston_log_continue(xdg_detail_message);
exit(EXIT_FAILURE);
}
if (stat(dir, &s) || !S_ISDIR(s.st_mode)) {
weston_log(xdg_wrong_message, dir);
weston_log_continue(xdg_detail_message);
exit(EXIT_FAILURE);
}
if ((s.st_mode & 0777) != 0700 || s.st_uid != getuid()) {
weston_log(xdg_wrong_mode_message,
dir, s.st_mode & 0777, s.st_uid);
weston_log_continue(xdg_detail_message);
}
}
static int
usage(int error_code)
{
fprintf(stderr,
"Usage: weston [OPTIONS]\n\n"
"This is weston version " VERSION ", the Wayland reference compositor.\n"
"Weston supports multiple backends, and depending on which backend is in use\n"
"different options will be accepted.\n\n"
"Core options:\n\n"
" --version\t\tPrint weston version\n"
" -B, --backend=MODULE\tBackend module, one of\n"
#if defined(BUILD_DRM_COMPOSITOR)
"\t\t\t\tdrm-backend.so\n"
#endif
#if defined(BUILD_FBDEV_COMPOSITOR)
"\t\t\t\tfbdev-backend.so\n"
#endif
#if defined(BUILD_HEADLESS_COMPOSITOR)
"\t\t\t\theadless-backend.so\n"
#endif
#if defined(BUILD_RDP_COMPOSITOR)
"\t\t\t\trdp-backend.so\n"
#endif
#if defined(BUILD_WAYLAND_COMPOSITOR)
"\t\t\t\twayland-backend.so\n"
#endif
#if defined(BUILD_X11_COMPOSITOR)
"\t\t\t\tx11-backend.so\n"
#endif
" --shell=MODULE\tShell module, defaults to desktop-shell.so\n"
" -S, --socket=NAME\tName of socket to listen on\n"
" -i, --idle-time=SECS\tIdle time in seconds\n"
" --modules\t\tLoad the comma-separated list of modules\n"
" --log=FILE\t\tLog to the given file\n"
" -c, --config=FILE\tConfig file to load, defaults to weston.ini\n"
" --no-config\t\tDo not read weston.ini\n"
" -h, --help\t\tThis help message\n\n");
#if defined(BUILD_DRM_COMPOSITOR)
fprintf(stderr,
"Options for drm-backend.so:\n\n"
" --seat=SEAT\t\tThe seat that weston should run on\n"
" --tty=TTY\t\tThe tty to use\n"
" --use-pixman\t\tUse the pixman (CPU) renderer\n"
" --current-mode\tPrefer current KMS mode over EDID preferred mode\n\n");
#endif
#if defined(BUILD_FBDEV_COMPOSITOR)
fprintf(stderr,
"Options for fbdev-backend.so:\n\n"
" --tty=TTY\t\tThe tty to use\n"
" --device=DEVICE\tThe framebuffer device to use\n"
"\n");
#endif
#if defined(BUILD_HEADLESS_COMPOSITOR)
fprintf(stderr,
"Options for headless-backend.so:\n\n"
" --width=WIDTH\t\tWidth of memory surface\n"
" --height=HEIGHT\tHeight of memory surface\n"
" --transform=TR\tThe output transformation, TR is one of:\n"
"\tnormal 90 180 270 flipped flipped-90 flipped-180 flipped-270\n"
" --use-pixman\t\tUse the pixman (CPU) renderer (default: no rendering)\n"
" --no-outputs\t\tDo not create any virtual outputs\n"
"\n");
#endif
#if defined(BUILD_RDP_COMPOSITOR)
fprintf(stderr,
"Options for rdp-backend.so:\n\n"
" --width=WIDTH\t\tWidth of desktop\n"
" --height=HEIGHT\tHeight of desktop\n"
" --env-socket\t\tUse socket defined in RDP_FD env variable as peer connection\n"
" --address=ADDR\tThe address to bind\n"
" --port=PORT\t\tThe port to listen on\n"
" --no-clients-resize\tThe RDP peers will be forced to the size of the desktop\n"
" --rdp4-key=FILE\tThe file containing the key for RDP4 encryption\n"
" --rdp-tls-cert=FILE\tThe file containing the certificate for TLS encryption\n"
" --rdp-tls-key=FILE\tThe file containing the private key for TLS encryption\n"
"\n");
#endif
#if defined(BUILD_WAYLAND_COMPOSITOR)
fprintf(stderr,
"Options for wayland-backend.so:\n\n"
" --width=WIDTH\t\tWidth of Wayland surface\n"
" --height=HEIGHT\tHeight of Wayland surface\n"
" --scale=SCALE\t\tScale factor of output\n"
" --fullscreen\t\tRun in fullscreen mode\n"
" --use-pixman\t\tUse the pixman (CPU) renderer\n"
" --output-count=COUNT\tCreate multiple outputs\n"
" --sprawl\t\tCreate one fullscreen output for every parent output\n"
" --display=DISPLAY\tWayland display to connect to\n\n");
#endif
#if defined(BUILD_X11_COMPOSITOR)
fprintf(stderr,
"Options for x11-backend.so:\n\n"
" --width=WIDTH\t\tWidth of X window\n"
" --height=HEIGHT\tHeight of X window\n"
" --scale=SCALE\t\tScale factor of output\n"
" --fullscreen\t\tRun in fullscreen mode\n"
" --use-pixman\t\tUse the pixman (CPU) renderer\n"
" --output-count=COUNT\tCreate multiple outputs\n"
" --no-input\t\tDont create input devices\n\n");
#endif
exit(error_code);
}
static int on_term_signal(int signal_number, void *data)
{
struct wl_display *display = data;
weston_log("caught signal %d\n", signal_number);
wl_display_terminate(display);
return 1;
}
static void
on_caught_signal(int s, siginfo_t *siginfo, void *context)
{
/* This signal handler will do a best-effort backtrace, and
* then call the backend restore function, which will switch
* back to the vt we launched from or ungrab X etc and then
* raise SIGTRAP. If we run weston under gdb from X or a
* different vt, and tell gdb "handle *s* nostop", this
* will allow weston to switch back to gdb on crash and then
* gdb will catch the crash with SIGTRAP.*/
weston_log("caught signal: %d\n", s);
print_backtrace();
segv_compositor->backend->restore(segv_compositor);
raise(SIGTRAP);
}
static void
catch_signals(void)
{
struct sigaction action;
action.sa_flags = SA_SIGINFO | SA_RESETHAND;
action.sa_sigaction = on_caught_signal;
sigemptyset(&action.sa_mask);
sigaction(SIGSEGV, &action, NULL);
sigaction(SIGABRT, &action, NULL);
}
static const char *
clock_name(clockid_t clk_id)
{
static const char *names[] = {
[CLOCK_REALTIME] = "CLOCK_REALTIME",
[CLOCK_MONOTONIC] = "CLOCK_MONOTONIC",
[CLOCK_MONOTONIC_RAW] = "CLOCK_MONOTONIC_RAW",
[CLOCK_REALTIME_COARSE] = "CLOCK_REALTIME_COARSE",
[CLOCK_MONOTONIC_COARSE] = "CLOCK_MONOTONIC_COARSE",
#ifdef CLOCK_BOOTTIME
[CLOCK_BOOTTIME] = "CLOCK_BOOTTIME",
#endif
};
if (clk_id < 0 || (unsigned)clk_id >= ARRAY_LENGTH(names))
return "unknown";
return names[clk_id];
}
static const struct {
uint32_t bit; /* enum weston_capability */
const char *desc;
} capability_strings[] = {
{ WESTON_CAP_ROTATION_ANY, "arbitrary surface rotation:" },
{ WESTON_CAP_CAPTURE_YFLIP, "screen capture uses y-flip:" },
};
static void
weston_compositor_log_capabilities(struct weston_compositor *compositor)
{
unsigned i;
int yes;
struct timespec res;
weston_log("Compositor capabilities:\n");
for (i = 0; i < ARRAY_LENGTH(capability_strings); i++) {
yes = compositor->capabilities & capability_strings[i].bit;
weston_log_continue(STAMP_SPACE "%s %s\n",
capability_strings[i].desc,
yes ? "yes" : "no");
}
weston_log_continue(STAMP_SPACE "presentation clock: %s, id %d\n",
clock_name(compositor->presentation_clock),
compositor->presentation_clock);
if (clock_getres(compositor->presentation_clock, &res) == 0)
weston_log_continue(STAMP_SPACE
"presentation clock resolution: %d.%09ld s\n",
(int)res.tv_sec, res.tv_nsec);
else
weston_log_continue(STAMP_SPACE
"presentation clock resolution: N/A\n");
}
static void
handle_primary_client_destroyed(struct wl_listener *listener, void *data)
{
struct wl_client *client = data;
weston_log("Primary client died. Closing...\n");
wl_display_terminate(wl_client_get_display(client));
}
static int
weston_create_listening_socket(struct wl_display *display, const char *socket_name)
{
if (socket_name) {
if (wl_display_add_socket(display, socket_name)) {
weston_log("fatal: failed to add socket: %m\n");
return -1;
}
} else {
socket_name = wl_display_add_socket_auto(display);
if (!socket_name) {
weston_log("fatal: failed to add socket: %m\n");
return -1;
}
}
setenv("WAYLAND_DISPLAY", socket_name, 1);
return 0;
}
WL_EXPORT void *
wet_load_module_entrypoint(const char *name, const char *entrypoint)
{
const char *builddir = getenv("WESTON_BUILD_DIR");
char path[PATH_MAX];
void *module, *init;
size_t len;
if (name == NULL)
return NULL;
if (name[0] != '/') {
if (builddir)
len = snprintf(path, sizeof path, "%s/.libs/%s", builddir,
name);
else
len = snprintf(path, sizeof path, "%s/%s", MODULEDIR,
name);
} else {
len = snprintf(path, sizeof path, "%s", name);
}
/* snprintf returns the length of the string it would've written,
* _excluding_ the NUL byte. So even being equal to the size of
* our buffer is an error here. */
if (len >= sizeof path)
return NULL;
module = dlopen(path, RTLD_NOW | RTLD_NOLOAD);
if (module) {
weston_log("Module '%s' already loaded\n", path);
dlclose(module);
return NULL;
}
weston_log("Loading module '%s'\n", path);
module = dlopen(path, RTLD_NOW);
if (!module) {
weston_log("Failed to load module: %s\n", dlerror());
return NULL;
}
init = dlsym(module, entrypoint);
if (!init) {
weston_log("Failed to lookup init function: %s\n", dlerror());
dlclose(module);
return NULL;
}
return init;
}
WL_EXPORT int
wet_load_module(struct weston_compositor *compositor,
const char *name, int *argc, char *argv[])
{
int (*module_init)(struct weston_compositor *ec,
int *argc, char *argv[]);
module_init = wet_load_module_entrypoint(name, "wet_module_init");
if (!module_init)
return -1;
if (module_init(compositor, argc, argv) < 0)
return -1;
return 0;
}
static int
wet_load_shell(struct weston_compositor *compositor,
const char *name, int *argc, char *argv[])
{
int (*shell_init)(struct weston_compositor *ec,
int *argc, char *argv[]);
shell_init = wet_load_module_entrypoint(name, "wet_shell_init");
if (!shell_init)
return -1;
if (shell_init(compositor, argc, argv) < 0)
return -1;
return 0;
}
static int
load_modules(struct weston_compositor *ec, const char *modules,
int *argc, char *argv[], int32_t *xwayland)
{
const char *p, *end;
char buffer[256];
if (modules == NULL)
return 0;
p = modules;
while (*p) {
end = strchrnul(p, ',');
snprintf(buffer, sizeof buffer, "%.*s", (int) (end - p), p);
if (strstr(buffer, "xwayland.so")) {
weston_log("Old Xwayland module loading detected: "
"Please use --xwayland command line option "
"or set xwayland=true in the [core] section "
"in weston.ini\n");
*xwayland = 1;
} else {
if (wet_load_module(ec, buffer, argc, argv) < 0)
return -1;
}
p = end;
while (*p == ',')
p++;
}
return 0;
}
static int
weston_compositor_init_config(struct weston_compositor *ec,
struct weston_config *config)
{
struct xkb_rule_names xkb_names;
struct weston_config_section *s;
int repaint_msec;
int vt_switching;
s = weston_config_get_section(config, "keyboard", NULL, NULL);
weston_config_section_get_string(s, "keymap_rules",
(char **) &xkb_names.rules, NULL);
weston_config_section_get_string(s, "keymap_model",
(char **) &xkb_names.model, NULL);
weston_config_section_get_string(s, "keymap_layout",
(char **) &xkb_names.layout, NULL);
weston_config_section_get_string(s, "keymap_variant",
(char **) &xkb_names.variant, NULL);
weston_config_section_get_string(s, "keymap_options",
(char **) &xkb_names.options, NULL);
if (weston_compositor_set_xkb_rule_names(ec, &xkb_names) < 0)
return -1;
weston_config_section_get_int(s, "repeat-rate",
&ec->kb_repeat_rate, 40);
weston_config_section_get_int(s, "repeat-delay",
&ec->kb_repeat_delay, 400);
weston_config_section_get_bool(s, "vt-switching",
&vt_switching, true);
ec->vt_switching = vt_switching;
s = weston_config_get_section(config, "core", NULL, NULL);
weston_config_section_get_int(s, "repaint-window", &repaint_msec,
ec->repaint_msec);
if (repaint_msec < -10 || repaint_msec > 1000) {
weston_log("Invalid repaint_window value in config: %d\n",
repaint_msec);
} else {
ec->repaint_msec = repaint_msec;
}
weston_log("Output repaint window is %d ms maximum.\n",
ec->repaint_msec);
return 0;
}
static char *
weston_choose_default_backend(void)
{
char *backend = NULL;
if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
backend = strdup("wayland-backend.so");
else if (getenv("DISPLAY"))
backend = strdup("x11-backend.so");
else
backend = strdup(WESTON_NATIVE_BACKEND);
return backend;
}
static const struct { const char *name; uint32_t token; } transforms[] = {
{ "normal", WL_OUTPUT_TRANSFORM_NORMAL },
{ "90", WL_OUTPUT_TRANSFORM_90 },
{ "180", WL_OUTPUT_TRANSFORM_180 },
{ "270", WL_OUTPUT_TRANSFORM_270 },
{ "flipped", WL_OUTPUT_TRANSFORM_FLIPPED },
{ "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
{ "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
{ "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
};
WL_EXPORT int
weston_parse_transform(const char *transform, uint32_t *out)
{
unsigned int i;
for (i = 0; i < ARRAY_LENGTH(transforms); i++)
if (strcmp(transforms[i].name, transform) == 0) {
*out = transforms[i].token;
return 0;
}
*out = WL_OUTPUT_TRANSFORM_NORMAL;
return -1;
}
WL_EXPORT const char *
weston_transform_to_string(uint32_t output_transform)
{
unsigned int i;
for (i = 0; i < ARRAY_LENGTH(transforms); i++)
if (transforms[i].token == output_transform)
return transforms[i].name;
return "<illegal value>";
}
static int
load_configuration(struct weston_config **config, int32_t noconfig,
const char *config_file)
{
const char *file = "weston.ini";
const char *full_path;
*config = NULL;
if (config_file)
file = config_file;
if (noconfig == 0)
*config = weston_config_parse(file);
if (*config) {
full_path = weston_config_get_full_path(*config);
weston_log("Using config file '%s'\n", full_path);
setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
return 0;
}
if (config_file && noconfig == 0) {
weston_log("fatal: error opening or reading config file"
" '%s'.\n", config_file);
return -1;
}
weston_log("Starting with no config file.\n");
setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
return 0;
}
static void
handle_exit(struct weston_compositor *c)
{
wl_display_terminate(c->wl_display);
}
static void
wet_output_set_scale(struct weston_output *output,
struct weston_config_section *section,
int32_t default_scale,
int32_t parsed_scale)
{
int32_t scale = default_scale;
if (section)
weston_config_section_get_int(section, "scale", &scale, default_scale);
if (parsed_scale)
scale = parsed_scale;
weston_output_set_scale(output, scale);
}
/* UINT32_MAX is treated as invalid because 0 is a valid
* enumeration value and the parameter is unsigned
*/
static void
wet_output_set_transform(struct weston_output *output,
struct weston_config_section *section,
uint32_t default_transform,
uint32_t parsed_transform)
{
char *t;
uint32_t transform = default_transform;
if (section) {
weston_config_section_get_string(section,
"transform", &t, "normal");
if (weston_parse_transform(t, &transform) < 0) {
weston_log("Invalid transform \"%s\" for output %s\n",
t, output->name);
transform = default_transform;
}
free(t);
}
if (parsed_transform != UINT32_MAX)
transform = parsed_transform;
weston_output_set_transform(output, transform);
}
static int
wet_configure_windowed_output_from_config(struct weston_output *output,
struct wet_output_config *defaults)
{
const struct weston_windowed_output_api *api =
weston_windowed_output_get_api(output->compositor);
struct weston_config *wc = wet_get_config(output->compositor);
struct weston_config_section *section = NULL;
struct wet_compositor *compositor = to_wet_compositor(output->compositor);
struct wet_output_config *parsed_options = compositor->parsed_options;
int width = defaults->width;
int height = defaults->height;
assert(parsed_options);
if (!api) {
weston_log("Cannot use weston_windowed_output_api.\n");
return -1;
}
section = weston_config_get_section(wc, "output", "name", output->name);
if (section) {
char *mode;
weston_config_section_get_string(section, "mode", &mode, NULL);
if (!mode || sscanf(mode, "%dx%d", &width,
&height) != 2) {
weston_log("Invalid mode for output %s. Using defaults.\n",
output->name);
width = defaults->width;
height = defaults->height;
}
free(mode);
}
if (parsed_options->width)
width = parsed_options->width;
if (parsed_options->height)
height = parsed_options->height;
wet_output_set_scale(output, section, defaults->scale, parsed_options->scale);
wet_output_set_transform(output, section, defaults->transform, parsed_options->transform);
if (api->output_set_size(output, width, height) < 0) {
weston_log("Cannot configure output \"%s\" using weston_windowed_output_api.\n",
output->name);
return -1;
}
weston_output_enable(output);
return 0;
}
static void
configure_input_device(struct weston_compositor *compositor,
struct libinput_device *device)
{
struct weston_config_section *s;
struct weston_config *config = wet_get_config(compositor);
int enable_tap;
int enable_tap_default;
s = weston_config_get_section(config,
"libinput", NULL, NULL);
if (libinput_device_config_tap_get_finger_count(device) > 0) {
enable_tap_default =
libinput_device_config_tap_get_default_enabled(
device);
weston_config_section_get_bool(s, "enable_tap",
&enable_tap,
enable_tap_default);
libinput_device_config_tap_set_enabled(device,
enable_tap);
}
}
static void
drm_backend_output_configure(struct wl_listener *listener, void *data)
{
struct weston_output *output = data;
struct weston_config *wc = wet_get_config(output->compositor);
struct wet_compositor *wet = to_wet_compositor(output->compositor);
struct weston_config_section *section;
const struct weston_drm_output_api *api = weston_drm_output_get_api(output->compositor);
enum weston_drm_backend_output_mode mode =
WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
char *s;
char *modeline = NULL;
char *gbm_format = NULL;
char *seat = NULL;
if (!api) {
weston_log("Cannot use weston_drm_output_api.\n");
return;
}
section = weston_config_get_section(wc, "output", "name", output->name);
weston_config_section_get_string(section, "mode", &s, "preferred");
if (strcmp(s, "off") == 0) {
weston_output_disable(output);
free(s);
return;
} else if (wet->drm_use_current_mode || strcmp(s, "current") == 0) {
mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
} else if (strcmp(s, "preferred") != 0) {
modeline = s;
s = NULL;
}
free(s);
if (api->set_mode(output, mode, modeline) < 0) {
weston_log("Cannot configure an output using weston_drm_output_api.\n");
free(modeline);
return;
}
free(modeline);
wet_output_set_scale(output, section, 1, 0);
wet_output_set_transform(output, section, WL_OUTPUT_TRANSFORM_NORMAL, UINT32_MAX);
weston_config_section_get_string(section,
"gbm-format", &gbm_format, NULL);
api->set_gbm_format(output, gbm_format);
free(gbm_format);
weston_config_section_get_string(section, "seat", &seat, "");
api->set_seat(output, seat);
free(seat);
weston_output_enable(output);
}
static int
load_drm_backend(struct weston_compositor *c,
int *argc, char **argv, struct weston_config *wc)
{
struct weston_drm_backend_config config = {{ 0, }};
struct weston_config_section *section;
struct wet_compositor *wet = to_wet_compositor(c);
int ret = 0;
wet->drm_use_current_mode = false;
const struct weston_option options[] = {
{ WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
{ WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
{ WESTON_OPTION_BOOLEAN, "current-mode", 0, &wet->drm_use_current_mode },
{ WESTON_OPTION_BOOLEAN, "use-pixman", 0, &config.use_pixman },
};
parse_options(options, ARRAY_LENGTH(options), argc, argv);
section = weston_config_get_section(wc, "core", NULL, NULL);
weston_config_section_get_string(section,
"gbm-format", &config.gbm_format,
NULL);
weston_config_section_get_uint(section, "pageflip-timeout",
&config.pageflip_timeout, 0);
config.base.struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION;
config.base.struct_size = sizeof(struct weston_drm_backend_config);
config.configure_device = configure_input_device;
ret = weston_compositor_load_backend(c, WESTON_BACKEND_DRM,
&config.base);
wet_set_pending_output_handler(c, drm_backend_output_configure);
free(config.gbm_format);
free(config.seat_id);
return ret;
}
static void
headless_backend_output_configure(struct wl_listener *listener, void *data)
{
struct weston_output *output = data;
struct wet_output_config defaults = {
.width = 1024,
.height = 640,
.scale = 1,
.transform = WL_OUTPUT_TRANSFORM_NORMAL
};
if (wet_configure_windowed_output_from_config(output, &defaults) < 0)
weston_log("Cannot configure output \"%s\".\n", output->name);
}
static int
load_headless_backend(struct weston_compositor *c,
int *argc, char **argv, struct weston_config *wc)
{
const struct weston_windowed_output_api *api;
struct weston_headless_backend_config config = {{ 0, }};
int no_outputs = 0;
int ret = 0;
char *transform = NULL;
struct wet_output_config *parsed_options = wet_init_parsed_options(c);
if (!parsed_options)
return -1;
const struct weston_option options[] = {
{ WESTON_OPTION_INTEGER, "width", 0, &parsed_options->width },
{ WESTON_OPTION_INTEGER, "height", 0, &parsed_options->height },
{ WESTON_OPTION_BOOLEAN, "use-pixman", 0, &config.use_pixman },
{ WESTON_OPTION_STRING, "transform", 0, &transform },
{ WESTON_OPTION_BOOLEAN, "no-outputs", 0, &no_outputs },
};
parse_options(options, ARRAY_LENGTH(options), argc, argv);
if (transform) {
if (weston_parse_transform(transform, &parsed_options->transform) < 0) {
weston_log("Invalid transform \"%s\"\n", transform);
parsed_options->transform = UINT32_MAX;
}
free(transform);
}
config.base.struct_version = WESTON_HEADLESS_BACKEND_CONFIG_VERSION;
config.base.struct_size = sizeof(struct weston_headless_backend_config);
/* load the actual wayland backend and configure it */
ret = weston_compositor_load_backend(c, WESTON_BACKEND_HEADLESS,
&config.base);
if (ret < 0)
return ret;
wet_set_pending_output_handler(c, headless_backend_output_configure);
if (!no_outputs) {
api = weston_windowed_output_get_api(c);
if (!api) {
weston_log("Cannot use weston_windowed_output_api.\n");
return -1;
}
if (api->output_create(c, "headless") < 0)
return -1;
}
return 0;
}
static void
rdp_backend_output_configure(struct wl_listener *listener, void *data)
{
struct weston_output *output = data;
struct wet_compositor *compositor = to_wet_compositor(output->compositor);
struct wet_output_config *parsed_options = compositor->parsed_options;
const struct weston_rdp_output_api *api = weston_rdp_output_get_api(output->compositor);
int width = 640;
int height = 480;
assert(parsed_options);
if (!api) {
weston_log("Cannot use weston_rdp_output_api.\n");
return;
}
if (parsed_options->width)
width = parsed_options->width;
if (parsed_options->height)
height = parsed_options->height;
weston_output_set_scale(output, 1);
weston_output_set_transform(output, WL_OUTPUT_TRANSFORM_NORMAL);
if (api->output_set_size(output, width, height) < 0) {
weston_log("Cannot configure output \"%s\" using weston_rdp_output_api.\n",
output->name);
return;
}
weston_output_enable(output);
}
static void
weston_rdp_backend_config_init(struct weston_rdp_backend_config *config)
{
config->base.struct_version = WESTON_RDP_BACKEND_CONFIG_VERSION;
config->base.struct_size = sizeof(struct weston_rdp_backend_config);
config->bind_address = NULL;
config->port = 3389;
config->rdp_key = NULL;
config->server_cert = NULL;
config->server_key = NULL;
config->env_socket = 0;
config->no_clients_resize = 0;
}
static int
load_rdp_backend(struct weston_compositor *c,
int *argc, char *argv[], struct weston_config *wc)
{
struct weston_rdp_backend_config config = {{ 0, }};
int ret = 0;
struct wet_output_config *parsed_options = wet_init_parsed_options(c);
if (!parsed_options)
return -1;
weston_rdp_backend_config_init(&config);
const struct weston_option rdp_options[] = {
{ WESTON_OPTION_BOOLEAN, "env-socket", 0, &config.env_socket },
{ WESTON_OPTION_INTEGER, "width", 0, &parsed_options->width },
{ WESTON_OPTION_INTEGER, "height", 0, &parsed_options->height },
{ WESTON_OPTION_STRING, "address", 0, &config.bind_address },
{ WESTON_OPTION_INTEGER, "port", 0, &config.port },
{ WESTON_OPTION_BOOLEAN, "no-clients-resize", 0, &config.no_clients_resize },
{ WESTON_OPTION_STRING, "rdp4-key", 0, &config.rdp_key },
{ WESTON_OPTION_STRING, "rdp-tls-cert", 0, &config.server_cert },
{ WESTON_OPTION_STRING, "rdp-tls-key", 0, &config.server_key }
};
parse_options(rdp_options, ARRAY_LENGTH(rdp_options), argc, argv);
ret = weston_compositor_load_backend(c, WESTON_BACKEND_RDP,
&config.base);
if (ret < 0)
goto out;
wet_set_pending_output_handler(c, rdp_backend_output_configure);
out:
free(config.bind_address);
free(config.rdp_key);
free(config.server_cert);
free(config.server_key);
return ret;
}
static void
fbdev_backend_output_configure(struct wl_listener *listener, void *data)
{
struct weston_output *output = data;
struct weston_config *wc = wet_get_config(output->compositor);
struct weston_config_section *section;
section = weston_config_get_section(wc, "output", "name", "fbdev");
wet_output_set_transform(output, section, WL_OUTPUT_TRANSFORM_NORMAL, UINT32_MAX);
weston_output_set_scale(output, 1);
weston_output_enable(output);
}
static int
load_fbdev_backend(struct weston_compositor *c,
int *argc, char **argv, struct weston_config *wc)
{
struct weston_fbdev_backend_config config = {{ 0, }};
int ret = 0;
const struct weston_option fbdev_options[] = {
{ WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
{ WESTON_OPTION_STRING, "device", 0, &config.device },
};
parse_options(fbdev_options, ARRAY_LENGTH(fbdev_options), argc, argv);
if (!config.device)
config.device = strdup("/dev/fb0");
config.base.struct_version = WESTON_FBDEV_BACKEND_CONFIG_VERSION;
config.base.struct_size = sizeof(struct weston_fbdev_backend_config);
config.configure_device = configure_input_device;
/* load the actual wayland backend and configure it */
ret = weston_compositor_load_backend(c, WESTON_BACKEND_FBDEV,
&config.base);
if (ret < 0)
goto out;
wet_set_pending_output_handler(c, fbdev_backend_output_configure);
out:
free(config.device);
return ret;
}
static void
x11_backend_output_configure(struct wl_listener *listener, void *data)
{
struct weston_output *output = data;
struct wet_output_config defaults = {
.width = 1024,
.height = 600,
.scale = 1,
.transform = WL_OUTPUT_TRANSFORM_NORMAL
};
if (wet_configure_windowed_output_from_config(output, &defaults) < 0)
weston_log("Cannot configure output \"%s\".\n", output->name);
}
static int
load_x11_backend(struct weston_compositor *c,
int *argc, char **argv, struct weston_config *wc)
{
char *default_output;
const struct weston_windowed_output_api *api;
struct weston_x11_backend_config config = {{ 0, }};
struct weston_config_section *section;
int ret = 0;
int option_count = 1;
int output_count = 0;
char const *section_name;
int i;
struct wet_output_config *parsed_options = wet_init_parsed_options(c);
if (!parsed_options)
return -1;
const struct weston_option options[] = {
{ WESTON_OPTION_INTEGER, "width", 0, &parsed_options->width },
{ WESTON_OPTION_INTEGER, "height", 0, &parsed_options->height },
{ WESTON_OPTION_INTEGER, "scale", 0, &parsed_options->scale },
{ WESTON_OPTION_BOOLEAN, "fullscreen", 'f', &config.fullscreen },
{ WESTON_OPTION_INTEGER, "output-count", 0, &option_count },
{ WESTON_OPTION_BOOLEAN, "no-input", 0, &config.no_input },
{ WESTON_OPTION_BOOLEAN, "use-pixman", 0, &config.use_pixman },
};
parse_options(options, ARRAY_LENGTH(options), argc, argv);
config.base.struct_version = WESTON_X11_BACKEND_CONFIG_VERSION;
config.base.struct_size = sizeof(struct weston_x11_backend_config);
/* load the actual backend and configure it */
ret = weston_compositor_load_backend(c, WESTON_BACKEND_X11,
&config.base);
if (ret < 0)
return ret;
wet_set_pending_output_handler(c, x11_backend_output_configure);
api = weston_windowed_output_get_api(c);
if (!api) {
weston_log("Cannot use weston_windowed_output_api.\n");
return -1;
}
section = NULL;
while (weston_config_next_section(wc, &section, &section_name)) {
char *output_name;
if (output_count >= option_count)
break;
if (strcmp(section_name, "output") != 0) {
continue;
}
weston_config_section_get_string(section, "name", &output_name, NULL);
if (output_name == NULL || output_name[0] != 'X') {
free(output_name);
continue;
}
if (api->output_create(c, output_name) < 0) {
free(output_name);
return -1;
}
free(output_name);
output_count++;
}
default_output = NULL;
for (i = output_count; i < option_count; i++) {
if (asprintf(&default_output, "screen%d", i) < 0) {
return -1;
}
if (api->output_create(c, default_output) < 0) {
free(default_output);
return -1;
}
free(default_output);
}
return 0;
}
static void
wayland_backend_output_configure_hotplug(struct wl_listener *listener, void *data)
{
struct weston_output *output = data;
/* This backend has all values hardcoded, so nothing can be configured here */
weston_output_enable(output);
}
static void
wayland_backend_output_configure(struct wl_listener *listener, void *data)
{
struct weston_output *output = data;
struct wet_output_config defaults = {
.width = 1024,
.height = 640,
.scale = 1,
.transform = WL_OUTPUT_TRANSFORM_NORMAL
};
if (wet_configure_windowed_output_from_config(output, &defaults) < 0)
weston_log("Cannot configure output \"%s\".\n", output->name);
}
static int
load_wayland_backend(struct weston_compositor *c,
int *argc, char **argv, struct weston_config *wc)
{
struct weston_wayland_backend_config config = {{ 0, }};
struct weston_config_section *section;
const struct weston_windowed_output_api *api;
const char *section_name;
char *output_name = NULL;
int count = 1;
int ret = 0;
int i;
struct wet_output_config *parsed_options = wet_init_parsed_options(c);
if (!parsed_options)
return -1;
config.cursor_size = 32;
config.cursor_theme = NULL;
config.display_name = NULL;
config.fullscreen = false;
config.sprawl = false;
config.use_pixman = false;
const struct weston_option wayland_options[] = {
{ WESTON_OPTION_INTEGER, "width", 0, &parsed_options->width },
{ WESTON_OPTION_INTEGER, "height", 0, &parsed_options->height },
{ WESTON_OPTION_INTEGER, "scale", 0, &parsed_options->scale },
{ WESTON_OPTION_STRING, "display", 0, &config.display_name },
{ WESTON_OPTION_BOOLEAN, "use-pixman", 0, &config.use_pixman },
{ WESTON_OPTION_INTEGER, "output-count", 0, &count },
{ WESTON_OPTION_BOOLEAN, "fullscreen", 0, &config.fullscreen },
{ WESTON_OPTION_BOOLEAN, "sprawl", 0, &config.sprawl },
};
parse_options(wayland_options, ARRAY_LENGTH(wayland_options), argc, argv);
section = weston_config_get_section(wc, "shell", NULL, NULL);
weston_config_section_get_string(section, "cursor-theme",
&config.cursor_theme, NULL);
weston_config_section_get_int(section, "cursor-size",
&config.cursor_size, 32);
config.base.struct_size = sizeof(struct weston_wayland_backend_config);
config.base.struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION;
/* load the actual wayland backend and configure it */
ret = weston_compositor_load_backend(c, WESTON_BACKEND_WAYLAND,
&config.base);
free(config.cursor_theme);
free(config.display_name);
if (ret < 0)
return ret;
api = weston_windowed_output_get_api(c);
if (api == NULL) {
/* We will just assume if load_backend() finished cleanly and
* windowed_output_api is not present that wayland backend is
* started with --sprawl or runs on fullscreen-shell. */
wet_set_pending_output_handler(c, wayland_backend_output_configure_hotplug);
return 0;
}
wet_set_pending_output_handler(c, wayland_backend_output_configure);
section = NULL;
while (weston_config_next_section(wc, &section, &section_name)) {
if (count == 0)
break;
if (strcmp(section_name, "output") != 0) {
continue;
}
weston_config_section_get_string(section, "name", &output_name, NULL);
if (output_name == NULL)
continue;
if (output_name[0] != 'W' || output_name[1] != 'L') {
free(output_name);
continue;
}
if (api->output_create(c, output_name) < 0) {
free(output_name);
return -1;
}
free(output_name);
--count;
}
for (i = 0; i < count; i++) {
if (asprintf(&output_name, "wayland%d", i) < 0)
return -1;
if (api->output_create(c, output_name) < 0) {
free(output_name);
return -1;
}
free(output_name);
}
return 0;
}
static int
load_backend(struct weston_compositor *compositor, const char *backend,
int *argc, char **argv, struct weston_config *config)
{
if (strstr(backend, "headless-backend.so"))
return load_headless_backend(compositor, argc, argv, config);
else if (strstr(backend, "rdp-backend.so"))
return load_rdp_backend(compositor, argc, argv, config);
else if (strstr(backend, "fbdev-backend.so"))
return load_fbdev_backend(compositor, argc, argv, config);
else if (strstr(backend, "drm-backend.so"))
return load_drm_backend(compositor, argc, argv, config);
else if (strstr(backend, "x11-backend.so"))
return load_x11_backend(compositor, argc, argv, config);
else if (strstr(backend, "wayland-backend.so"))
return load_wayland_backend(compositor, argc, argv, config);
weston_log("Error: unknown backend \"%s\"\n", backend);
return -1;
}
static char *
copy_command_line(int argc, char * const argv[])
{
FILE *fp;
char *str = NULL;
size_t size = 0;
int i;
fp = open_memstream(&str, &size);
if (!fp)
return NULL;
fprintf(fp, "%s", argv[0]);
for (i = 1; i < argc; i++)
fprintf(fp, " %s", argv[i]);
fclose(fp);
return str;
}
int main(int argc, char *argv[])
{
int ret = EXIT_FAILURE;
char *cmdline;
struct wl_display *display;
struct weston_compositor *ec;
struct wl_event_source *signals[4];
struct wl_event_loop *loop;
int i, fd;
char *backend = NULL;
char *shell = NULL;
int32_t xwayland = 0;
char *modules = NULL;
char *option_modules = NULL;
char *log = NULL;
char *server_socket = NULL;
int32_t idle_time = -1;
int32_t help = 0;
char *socket_name = NULL;
int32_t version = 0;
int32_t noconfig = 0;
int32_t numlock_on;
char *config_file = NULL;
struct weston_config *config = NULL;
struct weston_config_section *section;
struct wl_client *primary_client;
struct wl_listener primary_client_destroyed;
struct weston_seat *seat;
struct wet_compositor user_data;
int require_input;
const struct weston_option core_options[] = {
{ WESTON_OPTION_STRING, "backend", 'B', &backend },
{ WESTON_OPTION_STRING, "shell", 0, &shell },
{ WESTON_OPTION_STRING, "socket", 'S', &socket_name },
{ WESTON_OPTION_INTEGER, "idle-time", 'i', &idle_time },
{ WESTON_OPTION_BOOLEAN, "xwayland", 0, &xwayland },
{ WESTON_OPTION_STRING, "modules", 0, &option_modules },
{ WESTON_OPTION_STRING, "log", 0, &log },
{ WESTON_OPTION_BOOLEAN, "help", 'h', &help },
{ WESTON_OPTION_BOOLEAN, "version", 0, &version },
{ WESTON_OPTION_BOOLEAN, "no-config", 0, &noconfig },
{ WESTON_OPTION_STRING, "config", 'c', &config_file },
};
if (os_fd_set_cloexec(fileno(stdin))) {
printf("Unable to set stdin as close on exec().\n");
return EXIT_FAILURE;
}
cmdline = copy_command_line(argc, argv);
parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
if (help) {
free(cmdline);
usage(EXIT_SUCCESS);
}
if (version) {
printf(PACKAGE_STRING "\n");
free(cmdline);
return EXIT_SUCCESS;
}
weston_log_set_handler(vlog, vlog_continue);
weston_log_file_open(log);
weston_log("%s\n"
STAMP_SPACE "%s\n"
STAMP_SPACE "Bug reports to: %s\n"
STAMP_SPACE "Build: %s\n",
PACKAGE_STRING, PACKAGE_URL, PACKAGE_BUGREPORT,
BUILD_ID);
weston_log("Command line: %s\n", cmdline);
free(cmdline);
log_uname();
verify_xdg_runtime_dir();
display = wl_display_create();
loop = wl_display_get_event_loop(display);
signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
display);
signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
display);
signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
display);
wl_list_init(&child_process_list);
signals[3] = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
NULL);
if (!signals[0] || !signals[1] || !signals[2] || !signals[3])
goto out_signals;
if (load_configuration(&config, noconfig, config_file) < 0)
goto out_signals;
user_data.config = config;
user_data.parsed_options = NULL;
section = weston_config_get_section(config, "core", NULL, NULL);
if (!backend) {
weston_config_section_get_string(section, "backend", &backend,
NULL);
if (!backend)
backend = weston_choose_default_backend();
}
ec = weston_compositor_create(display, &user_data);
if (ec == NULL) {
weston_log("fatal: failed to create compositor\n");
goto out;
}
if (weston_compositor_init_config(ec, config) < 0)
goto out;
weston_config_section_get_bool(section, "require-input",
&require_input, true);
ec->require_input = require_input;
if (load_backend(ec, backend, &argc, argv, config) < 0) {
weston_log("fatal: failed to create compositor backend\n");
goto out;
}
weston_pending_output_coldplug(ec);
catch_signals();
segv_compositor = ec;
if (idle_time < 0)
weston_config_section_get_int(section, "idle-time", &idle_time, -1);
if (idle_time < 0)
idle_time = 300; /* default idle timeout, in seconds */
ec->idle_time = idle_time;
ec->default_pointer_grab = NULL;
ec->exit = handle_exit;
weston_compositor_log_capabilities(ec);
server_socket = getenv("WAYLAND_SERVER_SOCKET");
if (server_socket) {
weston_log("Running with single client\n");
if (!safe_strtoint(server_socket, &fd))
fd = -1;
} else {
fd = -1;
}
if (fd != -1) {
primary_client = wl_client_create(display, fd);
if (!primary_client) {
weston_log("fatal: failed to add client: %m\n");
goto out;
}
primary_client_destroyed.notify =
handle_primary_client_destroyed;
wl_client_add_destroy_listener(primary_client,
&primary_client_destroyed);
} else if (weston_create_listening_socket(display, socket_name)) {
goto out;
}
if (!shell)
weston_config_section_get_string(section, "shell", &shell,
"desktop-shell.so");
if (wet_load_shell(ec, shell, &argc, argv) < 0)
goto out;
weston_config_section_get_string(section, "modules", &modules, "");
if (load_modules(ec, modules, &argc, argv, &xwayland) < 0)
goto out;
if (load_modules(ec, option_modules, &argc, argv, &xwayland) < 0)
goto out;
if (!xwayland)
weston_config_section_get_bool(section, "xwayland", &xwayland,
false);
if (xwayland) {
if (wet_load_xwayland(ec) < 0)
goto out;
}
section = weston_config_get_section(config, "keyboard", NULL, NULL);
weston_config_section_get_bool(section, "numlock-on", &numlock_on, 0);
if (numlock_on) {
wl_list_for_each(seat, &ec->seat_list, link) {
struct weston_keyboard *keyboard =
weston_seat_get_keyboard(seat);
if (keyboard)
weston_keyboard_set_locks(keyboard,
WESTON_NUM_LOCK,
WESTON_NUM_LOCK);
}
}
for (i = 1; i < argc; i++)
weston_log("fatal: unhandled option: %s\n", argv[i]);
if (argc > 1)
goto out;
weston_compositor_wake(ec);
wl_display_run(display);
/* Allow for setting return exit code after
* wl_display_run returns normally. This is
* useful for devs/testers and automated tests
* that want to indicate failure status to
* testing infrastructure above
*/
ret = ec->exit_code;
out:
/* free(NULL) is valid, and it won't be NULL if it's used */
free(user_data.parsed_options);
weston_compositor_destroy(ec);
out_signals:
for (i = ARRAY_LENGTH(signals) - 1; i >= 0; i--)
if (signals[i])
wl_event_source_remove(signals[i]);
wl_display_destroy(display);
weston_log_file_close();
if (config)
weston_config_destroy(config);
free(config_file);
free(backend);
free(shell);
free(socket_name);
free(option_modules);
free(log);
free(modules);
return ret;
}