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xserver/hw/xwayland/xwayland.c

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/*
* Copyright © 2011-2014 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of the
* copyright holders not be used in advertising or publicity
* pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#include <xwayland-config.h>
#if !defined(SYSV) && !defined(WIN32)
#include <sys/resource.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <X11/Xatom.h>
#include <X11/Xfuncproto.h>
#include "dix/dix_priv.h"
#include "dix/screenint_priv.h"
#include "dix/selection_priv.h"
#include "os/auth.h"
#include "os/cmdline.h"
#include "os/ddx_priv.h"
#include "os/osdep.h"
#include "os/xserver_poll.h"
#include <micmap.h>
#include <misyncshm.h>
#include <compositeext.h>
#include <compint.h>
#include <glx_extinit.h>
#include <opaque.h>
#include <os.h>
#include <propertyst.h>
#include <version-config.h>
#include "xwayland-screen.h"
#include "xwayland-vidmode.h"
#ifdef XF86VIDMODE
#include <X11/extensions/xf86vmproto.h>
Bool noXFree86VidModeExtension = FALSE;
#endif
void
ddxGiveUp(enum ExitCode error)
{
}
void
OsVendorInit(void)
{
if (serverGeneration == 1)
ForceClockId(CLOCK_MONOTONIC);
}
void
OsVendorFatalError(const char *f, va_list args)
{
}
#if defined(DDXBEFORERESET)
void
ddxBeforeReset(void)
{
return;
}
#endif
#if INPUTTHREAD
/** This function is called in Xserver/os/inputthread.c when starting
the input thread. */
void
ddxInputThreadInit(void)
{
}
#endif
void
ddxUseMsg(void)
{
ErrorF("-rootless run rootless, requires wm support\n");
ErrorF("-fullscreen run fullscreen when rootful\n");
ErrorF("-geometry WxH set Xwayland window size when rootful\n");
ErrorF("-hidpi adjust to output scale when rootful\n");
ErrorF("-host-grab disable host keyboard shortcuts when rootful\n");
ErrorF("-nokeymap ignore keymap from the Wayland compositor\n");
ErrorF("-output specify which output to use for fullscreen when rootful\n");
ErrorF("-wm fd create X client for wm on given fd\n");
ErrorF("-initfd fd add given fd as a listen socket for initialization clients\n");
ErrorF("-listenfd fd add given fd as a listen socket\n");
ErrorF("-listen fd deprecated, use \"-listenfd\" instead\n");
ErrorF("-shm use shared memory for passing buffers\n");
#ifdef XWL_HAS_GLAMOR
ErrorF("-glamor [gl|es|off] use given API for Glamor acceleration. Incompatible with -shm option\n");
#endif
ErrorF("-verbose [n] verbose startup messages\n");
ErrorF("-version show the server version and exit\n");
ErrorF("-noTouchPointerEmulation disable touch pointer emulation\n");
ErrorF("-force-xrandr-emulation force non-native modes to be exposed when viewporter is not exposed by the compositor\n");
#ifdef XWL_HAS_LIBDECOR
ErrorF("-decorate add decorations to Xwayland when rootful\n");
#endif
#ifdef XWL_HAS_EI_PORTAL
ErrorF("-enable-ei-portal use the XDG portal for input emulation\n");
#endif
}
static int init_fd = -1;
static int wm_fd = -1;
static int listen_fds[5] = { -1, -1, -1, -1, -1 };
static int listen_fd_count = 0;
static int verbosity = 0;
static void
xwl_show_version(void)
{
ErrorF("%s Xwayland %s (%d)\n", VENDOR_NAME, VENDOR_MAN_VERSION, VENDOR_RELEASE);
ErrorF("X Protocol Version %d, Revision %d\n", X_PROTOCOL, X_PROTOCOL_REVISION);
#if defined(BUILDERSTRING)
if (strlen(BUILDERSTRING))
ErrorF("%s\n", BUILDERSTRING);
#endif
}
static void
try_raising_nofile_limit(void)
{
#ifdef RLIMIT_NOFILE
struct rlimit rlim;
/* Only fiddle with the limit if not set explicitly from the command line */
if (limitNoFile >= 0)
return;
if (getrlimit(RLIMIT_NOFILE, &rlim) < 0) {
ErrorF("Failed to get the current nofile limit: %s\n", strerror(errno));
return;
}
rlim.rlim_cur = rlim.rlim_max;
if (setrlimit(RLIMIT_NOFILE, &rlim) < 0) {
ErrorF("Failed to set the current nofile limit: %s\n", strerror(errno));
return;
}
LogMessageVerb(X_INFO, 3, "Raising the file descriptors limit to %llu\n",
(long long unsigned int) rlim.rlim_max);
#endif /* RLIMIT_NOFILE */
}
static void
xwl_add_listen_fd(int argc, char *argv[], int i)
{
NoListenAll = TRUE;
if (listen_fd_count == ARRAY_SIZE(listen_fds))
FatalError("Too many -listen arguments given, max is %zu\n",
ARRAY_SIZE(listen_fds));
listen_fds[listen_fd_count++] = atoi(argv[i + 1]);
}
int
ddxProcessArgument(int argc, char *argv[], int i)
{
if (strcmp(argv[i], "-rootless") == 0) {
return 1;
}
else if (strcmp(argv[i], "-listen") == 0) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
/* Not an FD */
if (!isdigit(*argv[i + 1]))
return 0;
LogMessageVerb(X_WARNING, 0, "Option \"-listen\" for file descriptors is deprecated\n"
"Please use \"-listenfd\" instead.\n");
xwl_add_listen_fd (argc, argv, i);
return 2;
}
else if (strcmp(argv[i], "-listenfd") == 0) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
xwl_add_listen_fd (argc, argv, i);
return 2;
}
else if (strcmp(argv[i], "-wm") == 0) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
wm_fd = atoi(argv[i + 1]);
return 2;
}
else if (strcmp(argv[i], "-initfd") == 0) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
init_fd = atoi(argv[i + 1]);
return 2;
}
else if (strcmp(argv[i], "-shm") == 0) {
return 1;
}
#ifdef XWL_HAS_GLAMOR
else if (strcmp(argv[i], "-glamor") == 0) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
/* Only check here, actual work inside xwayland-screen.c */
return 2;
}
#endif
else if (strcmp(argv[i], "-verbose") == 0) {
if (++i < argc && argv[i]) {
char *end;
long val;
val = strtol(argv[i], &end, 0);
if (*end == '\0') {
verbosity = val;
LogSetParameter(XLOG_VERBOSITY, verbosity);
return 2;
}
}
LogSetParameter(XLOG_VERBOSITY, ++verbosity);
return 1;
}
else if (strcmp(argv[i], "-version") == 0) {
xwl_show_version();
exit(0);
}
else if (strcmp(argv[i], "-noTouchPointerEmulation") == 0) {
touchEmulatePointer = FALSE;
return 1;
}
else if (strcmp(argv[i], "-force-xrandr-emulation") == 0) {
return 1;
}
else if (strcmp(argv[i], "-geometry") == 0) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
return 2;
}
else if (strcmp(argv[i], "-fullscreen") == 0) {
return 1;
}
else if (strcmp(argv[i], "-host-grab") == 0) {
return 1;
}
else if (strcmp(argv[i], "-decorate") == 0) {
return 1;
}
else if (strcmp(argv[i], "-enable-ei-portal") == 0) {
return 1;
}
else if (strcmp(argv[i], "-output") == 0) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
return 2;
}
else if (strcmp(argv[i], "-nokeymap") == 0) {
return 1;
}
else if (strcmp(argv[i], "-hidpi") == 0) {
return 1;
}
return 0;
}
static CARD32
add_client_fd(OsTimerPtr timer, CARD32 time, void *arg)
{
if (!AddClientOnOpenFD(wm_fd))
FatalError("Failed to add wm client\n");
TimerFree(timer);
return 0;
}
static void
listen_on_fds(void)
{
int i;
for (i = 0; i < listen_fd_count; i++)
ListenOnOpenFD(listen_fds[i], FALSE);
}
static void
wm_selection_callback(CallbackListPtr *p, void *data, void *arg)
{
SelectionInfoRec *info = arg;
struct xwl_screen *xwl_screen = data;
static const char atom_name[] = "WM_S0";
static Atom atom_wm_s0;
if (atom_wm_s0 == None)
atom_wm_s0 = MakeAtom(atom_name, strlen(atom_name), TRUE);
if (info->selection->selection != atom_wm_s0 ||
info->kind != SelectionSetOwner)
return;
listen_on_fds();
DeleteCallback(&SelectionCallback, wm_selection_callback, xwl_screen);
}
static void _X_ATTRIBUTE_PRINTF(1, 0)
xwl_log_handler(const char *format, va_list args)
{
char msg[256];
vsnprintf(msg, sizeof msg, format, args);
ErrorF("XWAYLAND: %s", msg);
}
#ifdef XWL_HAS_XWAYLAND_EXTENSION
#include <X11/extensions/xwaylandproto.h>
Bool noXwaylandExtension = FALSE;
static int
ProcXwlQueryVersion(ClientPtr client)
{
xXwlQueryVersionReply reply;
int major, minor;
REQUEST(xXwlQueryVersionReq);
REQUEST_SIZE_MATCH(xXwlQueryVersionReq);
if (version_compare(stuff->majorVersion, stuff->minorVersion,
XWAYLAND_EXTENSION_MAJOR,
XWAYLAND_EXTENSION_MINOR) < 0) {
major = stuff->majorVersion;
minor = stuff->minorVersion;
} else {
major = XWAYLAND_EXTENSION_MAJOR;
minor = XWAYLAND_EXTENSION_MINOR;
}
reply = (xXwlQueryVersionReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.majorVersion = major,
.minorVersion = minor,
};
if (client->swapped) {
swaps(&reply.sequenceNumber);
swapl(&reply.length);
swaps(&reply.majorVersion);
swaps(&reply.minorVersion);
}
WriteReplyToClient(client, sizeof(reply), &reply);
return Success;
}
static int _X_COLD
SProcXwlQueryVersion(ClientPtr client)
{
REQUEST(xXwlQueryVersionReq);
REQUEST_AT_LEAST_SIZE(xXwlQueryVersionReq);
swaps(&stuff->majorVersion);
swaps(&stuff->minorVersion);
return ProcXwlQueryVersion(client);
}
static int
ProcXwaylandDispatch(ClientPtr client)
{
REQUEST(xReq);
switch (stuff->data) {
case X_XwlQueryVersion:
return ProcXwlQueryVersion(client);
}
return BadRequest;
}
static int
SProcXwaylandDispatch(ClientPtr client)
{
REQUEST(xReq);
switch (stuff->data) {
case X_XwlQueryVersion:
return SProcXwlQueryVersion(client);
}
return BadRequest;
}
static void
xwlExtensionInit(void)
{
AddExtension(XWAYLAND_EXTENSION_NAME,
XwlNumberEvents, XwlNumberErrors,
ProcXwaylandDispatch, SProcXwaylandDispatch,
NULL, StandardMinorOpcode);
}
#endif
static const ExtensionModule xwayland_extensions[] = {
#ifdef XF86VIDMODE
{ xwlVidModeExtensionInit, XF86VIDMODENAME, &noXFree86VidModeExtension },
#endif
#ifdef XWL_HAS_XWAYLAND_EXTENSION
{ xwlExtensionInit, XWAYLAND_EXTENSION_NAME, &noXwaylandExtension },
#endif
};
void
InitOutput(ScreenInfo * screen_info, int argc, char **argv)
{
int depths[] = { 1, 4, 8, 15, 16, 24, 32 };
int bpp[] = { 1, 8, 8, 16, 16, 32, 32 };
int i;
for (i = 0; i < ARRAY_SIZE(depths); i++) {
screen_info->formats[i].depth = depths[i];
screen_info->formats[i].bitsPerPixel = bpp[i];
screen_info->formats[i].scanlinePad = BITMAP_SCANLINE_PAD;
}
screen_info->imageByteOrder = IMAGE_BYTE_ORDER;
screen_info->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
screen_info->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
screen_info->bitmapBitOrder = BITMAP_BIT_ORDER;
screen_info->numPixmapFormats = ARRAY_SIZE(depths);
if (serverGeneration == 1) {
try_raising_nofile_limit();
LoadExtensionList(xwayland_extensions,
ARRAY_SIZE(xwayland_extensions), FALSE);
}
wl_log_set_handler_client(xwl_log_handler);
if (AddScreen(xwl_screen_init, argc, argv) == -1) {
FatalError("Couldn't add screen\n");
}
xorgGlxCreateVendor();
LocalAccessScopeUser();
if (wm_fd >= 0 || init_fd >= 0) {
if (wm_fd >= 0)
TimerSet(NULL, 0, 1, add_client_fd, NULL);
if (init_fd >= 0)
ListenOnOpenFD(init_fd, FALSE);
AddCallback(&SelectionCallback, wm_selection_callback, NULL);
}
else if (listen_fd_count > 0) {
listen_on_fds();
}
}
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