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gtk2/gdk/linux-fb/gdkmain-fb.c
Eric Warmenhoven 095bea4512 More proper vt switch handling 
Wed Dec  4 19:41:14 2002  Eric Warmenhoven <eric@warmenhoven.org>

	* gdk/linux-fb/gdkglobals-fb.c gdk/linux-fb/gdkkeyboard-fb.c
	gdk/linux-fb/gdkmain-fb.c gdk/linux-fb/gdkprivate-fb.h
	gdk/linux-fb/gdkrender-fb.c: More proper vt switch handling
2002-12-05 16:28:35 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <ctype.h>
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <sys/vt.h>
#include <sys/kd.h>
#include <errno.h>
#include <signal.h>
#include <sys/socket.h>
#include <sys/un.h>
#include "gdk.h"
#include "gdkprivate-fb.h"
#include "gdkinternals.h"
#include "gdkfbmanager.h"
/* Private variable declarations
*/
static int gdk_initialized = 0; /* 1 if the library is initialized,
* 0 otherwise.
*/
#ifdef G_ENABLE_DEBUG
static const GDebugKey gdk_debug_keys[] = {
{"misc", GDK_DEBUG_MISC},
{"events", GDK_DEBUG_EVENTS},
};
static const int gdk_ndebug_keys = sizeof(gdk_debug_keys)/sizeof(GDebugKey);
#endif /* G_ENABLE_DEBUG */
GdkArgDesc _gdk_windowing_args[] = {
{ NULL }
};
static const GScannerConfig fb_modes_scanner_config =
{
(
" \t\n"
) /* cset_skip_characters */,
(
G_CSET_a_2_z
G_CSET_A_2_Z
) /* cset_identifier_first */,
(
G_CSET_a_2_z
"_-0123456789"
G_CSET_A_2_Z
) /* cset_identifier_nth */,
( "#\n" ) /* cpair_comment_single */,
FALSE /* case_sensitive */,
FALSE /* skip_comment_multi */,
TRUE /* skip_comment_single */,
FALSE /* scan_comment_multi */,
TRUE /* scan_identifier */,
TRUE /* scan_identifier_1char */,
FALSE /* scan_identifier_NULL */,
TRUE /* scan_symbols */,
FALSE /* scan_binary */,
FALSE /* scan_octal */,
FALSE /* scan_float */,
FALSE /* scan_hex */,
FALSE /* scan_hex_dollar */,
FALSE /* scan_string_sq */,
TRUE /* scan_string_dq */,
TRUE /* numbers_2_int */,
FALSE /* int_2_float */,
FALSE /* identifier_2_string */,
TRUE /* char_2_token */,
FALSE /* symbol_2_token */,
FALSE /* scope_0_fallback */,
};
enum {
FB_MODE,
FB_ENDMODE,
FB_GEOMETRY,
FB_TIMINGS,
FB_LACED,
FB_HSYNC,
FB_VSYNC,
FB_CSYNC,
FB_EXTSYNC,
FB_DOUBLE,
FB_ACCEL
};
char *fb_modes_keywords[] =
{
"mode",
"endmode",
"geometry",
"timings",
"laced",
"hsync",
"vsync",
"csync",
"extsync",
"double",
"accel"
};
static int
fb_modes_parse_mode (GScanner *scanner,
struct fb_var_screeninfo *modeinfo,
char *specified_modename)
{
guint token;
int keyword;
int i;
char *modename;
int geometry[5];
int timings[7];
int vsync=0, hsync=0, csync=0, extsync=0, doublescan=0, laced=0, accel=1;
int found_geometry = 0;
int found_timings = 0;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_SYMBOL)
return -1;
keyword = GPOINTER_TO_INT (scanner->value.v_symbol);
if (keyword != FB_MODE)
return -1;
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_STRING)
return -1;
modename = g_strdup (scanner->value.v_string);
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_SYMBOL)
{
g_free (modename);
return -1; /* Not a valid keyword */
}
keyword = GPOINTER_TO_INT (scanner->value.v_symbol);
while ( keyword != FB_ENDMODE )
{
switch (GPOINTER_TO_INT (scanner->value.v_symbol))
{
case FB_GEOMETRY:
for (i = 0; i < 5;i++) {
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_INT)
{
g_free (modename);
return -1; /* need a integer */
}
geometry[i] = scanner->value.v_int;
}
found_geometry = TRUE;
break;
case FB_TIMINGS:
for (i = 0; i < 7; i++) {
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_INT)
{
g_free (modename);
return -1; /* need a integer */
}
timings[i] = scanner->value.v_int;
}
found_timings = TRUE;
break;
case FB_LACED:
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_IDENTIFIER)
{
g_free (modename);
return -1;
}
if (g_ascii_strcasecmp (scanner->value.v_identifier, "true")==0)
laced = 1;
else if (g_ascii_strcasecmp (scanner->value.v_identifier, "false")==0)
laced = 0;
else
{
g_free (modename);
return -1;
}
break;
case FB_EXTSYNC:
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_IDENTIFIER)
{
g_free (modename);
return -1;
}
if (g_ascii_strcasecmp (scanner->value.v_identifier, "true")==0)
extsync = 1;
else if (g_ascii_strcasecmp (scanner->value.v_identifier, "false")==0)
extsync = 0;
else
{
g_free (modename);
return -1;
}
break;
case FB_DOUBLE:
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_IDENTIFIER)
{
g_free (modename);
return -1;
}
if (g_ascii_strcasecmp (scanner->value.v_identifier, "true")==0)
doublescan = 1;
else if (g_ascii_strcasecmp (scanner->value.v_identifier, "false")==0)
doublescan = 0;
else
{
g_free (modename);
return -1;
}
break;
case FB_VSYNC:
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_IDENTIFIER)
{
g_free (modename);
return -1;
}
if (g_ascii_strcasecmp (scanner->value.v_identifier, "high")==0)
vsync = 1;
else if (g_ascii_strcasecmp (scanner->value.v_identifier, "low")==0)
vsync = 0;
else
{
g_free (modename);
return -1;
}
break;
case FB_HSYNC:
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_IDENTIFIER)
{
g_free (modename);
return -1;
}
if (g_ascii_strcasecmp (scanner->value.v_identifier, "high")==0)
hsync = 1;
else if (g_ascii_strcasecmp (scanner->value.v_identifier, "low")==0)
hsync = 0;
else
{
g_free (modename);
return -1;
}
break;
case FB_CSYNC:
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_IDENTIFIER)
{
g_free (modename);
return -1;
}
if (g_ascii_strcasecmp (scanner->value.v_identifier, "high")==0)
csync = 1;
else if (g_ascii_strcasecmp (scanner->value.v_identifier, "low")==0)
csync = 0;
else
{
g_free (modename);
return -1;
}
break;
case FB_ACCEL:
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_IDENTIFIER)
{
g_free (modename);
return -1;
}
if (g_ascii_strcasecmp (scanner->value.v_identifier, "false")==0)
accel = 0;
else if (g_ascii_strcasecmp (scanner->value.v_identifier, "true")==0)
accel = 1;
else
{
g_free (modename);
return -1;
}
break;
}
token = g_scanner_get_next_token (scanner);
if (token != G_TOKEN_SYMBOL)
{
g_free (modename);
return -1; /* Not a valid keyword */
}
keyword = GPOINTER_TO_INT (scanner->value.v_symbol);
}
if (strcmp (modename, specified_modename)== 0) {
/* we really should be parsing for rgba. regardless, if rgba isn't found,
* we can't assume that the original colors are valid for the new mode */
memset (&modeinfo->red, 0, sizeof (modeinfo->red));
memset (&modeinfo->green, 0, sizeof (modeinfo->green));
memset (&modeinfo->blue, 0, sizeof (modeinfo->blue));
memset (&modeinfo->transp, 0, sizeof (modeinfo->transp));
if (!found_geometry)
g_warning ("Geometry not specified");
if (found_geometry)
{
modeinfo->xres = geometry[0];
modeinfo->yres = geometry[1];
modeinfo->xres_virtual = geometry[2];
modeinfo->yres_virtual = geometry[3];
modeinfo->bits_per_pixel = geometry[4];
}
if (!found_timings)
g_warning ("Timing not specified");
if (found_timings)
{
modeinfo->pixclock = timings[0];
modeinfo->left_margin = timings[1];
modeinfo->right_margin = timings[2];
modeinfo->upper_margin = timings[3];
modeinfo->lower_margin = timings[4];
modeinfo->hsync_len = timings[5];
modeinfo->vsync_len = timings[6];
modeinfo->vmode = 0;
if (laced)
modeinfo->vmode |= FB_VMODE_INTERLACED;
if (doublescan)
modeinfo->vmode |= FB_VMODE_DOUBLE;
modeinfo->sync = 0;
if (hsync)
modeinfo->sync |= FB_SYNC_HOR_HIGH_ACT;
if (vsync)
modeinfo->sync |= FB_SYNC_VERT_HIGH_ACT;
if (accel)
modeinfo->accel_flags = FB_ACCELF_TEXT;
else
modeinfo->accel_flags = 0;
}
g_free (modename);
return 1;
}
g_free (modename);
return 0;
}
static int
gdk_fb_setup_mode_from_name (struct fb_var_screeninfo *modeinfo,
char *modename)
{
GScanner *scanner;
char *filename;
gint result;
int fd, i;
int retval;
retval = 0;
filename = "/etc/fb.modes";
fd = open (filename, O_RDONLY);
if (fd < 0)
{
g_warning ("Cannot read %s", filename);
return retval;
}
scanner = g_scanner_new ((GScannerConfig *) &fb_modes_scanner_config);
scanner->input_name = filename;
for (i = 0; i < sizeof(fb_modes_keywords)/sizeof(fb_modes_keywords[0]); i++)
g_scanner_scope_add_symbol (scanner, 0, fb_modes_keywords[i], GINT_TO_POINTER (i));
g_scanner_input_file (scanner, fd);
while (1) {
if (g_scanner_peek_next_token (scanner) == G_TOKEN_EOF) {
break;
}
result = fb_modes_parse_mode (scanner, modeinfo, modename);
if (result < 0) {
g_warning ("parse error in %s at line %d", filename, scanner->line);
break;
}
if (result > 0)
{
retval = 1;
break;
}
}
g_scanner_destroy (scanner);
close (fd);
return retval;
}
static int
gdk_fb_set_mode (GdkFBDisplay *display)
{
char *env, *end;
int depth, height, width;
gboolean changed;
if (ioctl (display->fb_fd, FBIOGET_VSCREENINFO, &display->modeinfo) < 0)
return -1;
display->orig_modeinfo = display->modeinfo;
changed = FALSE;
env = getenv ("GDK_DISPLAY_MODE");
if (env)
{
if (gdk_fb_setup_mode_from_name (&display->modeinfo, env))
changed = TRUE;
else
g_warning ("Couldn't find mode named '%s'", env);
}
env = getenv ("GDK_DISPLAY_DEPTH");
if (env)
{
depth = strtol (env, &end, 10);
if (env != end)
{
changed = TRUE;
display->modeinfo.bits_per_pixel = depth;
}
}
env = getenv ("GDK_DISPLAY_WIDTH");
if (env)
{
width = strtol (env, &end, 10);
if (env != end)
{
changed = TRUE;
display->modeinfo.xres = width;
display->modeinfo.xres_virtual = width;
}
}
env = getenv ("GDK_DISPLAY_HEIGHT");
if (env)
{
height = strtol (env, &end, 10);
if (env != end)
{
changed = TRUE;
display->modeinfo.yres = height;
display->modeinfo.yres_virtual = height;
}
}
if (changed &&
(ioctl (display->fb_fd, FBIOPUT_VSCREENINFO, &display->modeinfo) < 0))
{
g_warning ("Couldn't set specified mode");
return -1;
}
/* ask for info back to make sure of what we got */
if (ioctl (display->fb_fd, FBIOGET_VSCREENINFO, &display->modeinfo) < 0)
{
g_warning ("Error getting var screen info");
return -1;
}
if (ioctl (display->fb_fd, FBIOGET_FSCREENINFO, &display->sinfo) < 0)
{
g_warning ("Error getting fixed screen info");
return -1;
}
return 0;
}
#ifdef ENABLE_FB_MANAGER
static void
gdk_fb_switch_from (void)
{
g_print ("Switch from\n");
gdk_shadow_fb_stop_updates ();
gdk_fb_mouse_close ();
gdk_fb_keyboard_close ();
}
static void
gdk_fb_switch_to (void)
{
g_print ("switch_to\n");
gdk_shadow_fb_update (0, 0,
gdk_display->fb_width,
gdk_display->fb_height);
if (!gdk_fb_keyboard_open ())
g_warning ("Failed to re-initialize keyboard");
if (!gdk_fb_mouse_open ())
g_warning ("Failed to re-initialize mouse");
}
static gboolean
gdk_fb_manager_callback (GIOChannel *gioc,
GIOCondition cond,
gpointer data)
{
struct FBManagerMessage msg;
GdkFBDisplay *display;
int res;
display = data;
res = recv (display->manager_fd, &msg, sizeof (msg), 0);
if (res==0)
{
g_source_remove (gdk_display->manager_tag);
/*g_io_channel_unref (kb->io);*/
close (gdk_display->manager_fd);
}
if (res != sizeof (msg))
{
g_warning ("Got wrong size message");
return TRUE;
}
switch (msg.msg_type)
{
case FB_MANAGER_SWITCH_FROM:
g_print ("Got switch from message\n");
display->manager_blocked = TRUE;
gdk_fb_switch_from ();
msg.msg_type = FB_MANAGER_ACK;
send (display->manager_fd, &msg, sizeof (msg), 0);
break;
case FB_MANAGER_SWITCH_TO:
g_print ("Got switch to message\n");
display->manager_blocked = FALSE;
gdk_fb_switch_to ();
break;
default:
g_warning ("Got unknown message");
}
return TRUE;
}
#endif /* ENABLE_FB_MANAGER */
static void
gdk_fb_manager_connect (GdkFBDisplay *display)
{
#ifdef ENABLE_FB_MANAGER
int fd;
struct sockaddr_un addr;
struct msghdr msg = {0};
struct cmsghdr *cmsg;
struct ucred credentials;
struct FBManagerMessage init_msg;
struct iovec iov;
char buf[CMSG_SPACE (sizeof (credentials))]; /* ancillary data buffer */
int *fdptr;
int res;
display->manager_blocked = FALSE;
display->manager_fd = -1;
fd = socket (PF_UNIX, SOCK_STREAM, 0);
g_print ("socket: %d\n", fd);
if (fd < 0)
return;
addr.sun_family = AF_UNIX;
strcpy (addr.sun_path, "/tmp/.fb.manager");
if (connect(fd, (struct sockaddr *)&addr, sizeof (addr)) < 0)
{
g_print ("connect failed\n");
close (fd);
return;
}
credentials.pid = getpid ();
credentials.uid = geteuid ();
credentials.gid = getegid ();
init_msg.msg_type = FB_MANAGER_NEW_CLIENT;
iov.iov_base = &init_msg;
iov.iov_len = sizeof (init_msg);
msg.msg_name = NULL;
msg.msg_namelen = 0;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = buf;
msg.msg_controllen = sizeof buf;
cmsg = CMSG_FIRSTHDR(&msg);
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_CREDENTIALS;
cmsg->cmsg_len = CMSG_LEN (sizeof (credentials));
/* Initialize the payload: */
fdptr = (int *)CMSG_DATA (cmsg);
memcpy (fdptr, &credentials, sizeof (credentials));
/* Sum of the length of all control messages in the buffer: */
msg.msg_controllen = cmsg->cmsg_len;
res = sendmsg (fd, &msg, 0);
display->manager_fd = fd;
display->manager_blocked = TRUE;
display->manager_tag = g_io_add_watch (g_io_channel_unix_new (fd),
G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL,
gdk_fb_manager_callback,
display);
init_msg.msg_type = FB_MANAGER_REQUEST_SWITCH_TO_PID;
init_msg.data = getpid ();
/* Request a switch-to */
send (fd, &init_msg, sizeof (init_msg), 0);
#endif
}
static void
gdk_fb_switch (int sig)
{
if (sig == SIGUSR1)
{
ioctl (gdk_display->tty_fd, VT_RELDISP, 1);
_gdk_fb_is_active_vt = FALSE;
gdk_shadow_fb_stop_updates ();
gdk_fb_mouse_close ();
gdk_fb_keyboard_close ();
}
else
{
GdkColormap *cmap;
ioctl (gdk_display->tty_fd, VT_RELDISP, VT_ACKACQ);
_gdk_fb_is_active_vt = TRUE;
/* XXX: is it dangerous to put all this stuff in a signal handler? */
cmap = gdk_screen_get_default_colormap (_gdk_screen);
gdk_colormap_change (cmap, cmap->size);
gdk_shadow_fb_update (0, 0,
gdk_display->fb_width,
gdk_display->fb_height);
if (!gdk_fb_keyboard_open ())
g_warning ("Failed to re-initialize keyboard");
if (!gdk_fb_mouse_open ())
g_warning ("Failed to re-initialize mouse");
gdk_fb_redraw_all ();
}
}
static GdkFBDisplay *
gdk_fb_display_new ()
{
GdkFBDisplay *display;
gchar *fb_filename;
struct vt_stat vs;
struct vt_mode vtm;
int vt, n;
gchar *s, *send;
char buf[32];
display = g_new0 (GdkFBDisplay, 1);
display->console_fd = open ("/dev/console", O_RDWR);
if (display->console_fd < 0)
{
g_warning ("Can't open /dev/console: %s", strerror (errno));
g_free (display);
return NULL;
}
ioctl (display->console_fd, VT_GETSTATE, &vs);
display->start_vt = vs.v_active;
vt = display->start_vt;
s = getenv("GDK_VT");
if (s)
{
if (g_ascii_strcasecmp ("new", s)==0)
{
n = ioctl (display->console_fd, VT_OPENQRY, &vt);
if (n < 0 || vt == -1)
g_error("Cannot allocate new VT");
}
else
{
vt = strtol (s, &send, 10);
if (s==send)
{
g_warning ("Cannot parse GDK_VT");
vt = display->start_vt;
}
}
}
display->vt = vt;
/* Switch to the new VT */
if (vt != display->start_vt)
{
ioctl (display->console_fd, VT_ACTIVATE, vt);
ioctl (display->console_fd, VT_WAITACTIVE, vt);
}
/* Open the tty */
g_snprintf (buf, sizeof(buf), "/dev/tty%d", vt);
display->tty_fd = open (buf, O_RDWR|O_NONBLOCK);
if (display->tty_fd < 0)
{
g_warning ("Can't open %s: %s", buf, strerror (errno));
close (display->console_fd);
g_free (display);
return NULL;
}
/* set up switch signals */
if (ioctl (display->tty_fd, VT_GETMODE, &vtm) >= 0)
{
signal (SIGUSR1, gdk_fb_switch);
signal (SIGUSR2, gdk_fb_switch);
vtm.mode = VT_PROCESS;
vtm.waitv = 0;
vtm.relsig = SIGUSR1;
vtm.acqsig = SIGUSR2;
ioctl (display->tty_fd, VT_SETMODE, &vtm);
}
_gdk_fb_is_active_vt = TRUE;
fb_filename = gdk_get_display ();
display->fb_fd = open (fb_filename, O_RDWR);
if (display->fb_fd < 0)
{
g_warning ("Can't open %s: %s", fb_filename, strerror (errno));
g_free (fb_filename);
close (display->tty_fd);
close (display->console_fd);
g_free (display);
return NULL;
}
g_free (fb_filename);
if (gdk_fb_set_mode (display) < 0)
{
close (display->fb_fd);
close (display->tty_fd);
close (display->console_fd);
g_free (display);
return NULL;
}
/* Disable normal text on the console */
ioctl (display->fb_fd, KDSETMODE, KD_GRAPHICS);
ioctl (display->fb_fd, FBIOBLANK, 0);
/* We used to use sinfo.smem_len, but that seemed to be broken in many cases */
display->fb_mmap = mmap (NULL,
display->modeinfo.yres * display->sinfo.line_length,
PROT_READ|PROT_WRITE,
MAP_SHARED,
display->fb_fd,
0);
g_assert (display->fb_mmap != MAP_FAILED);
if (display->sinfo.visual == FB_VISUAL_TRUECOLOR)
{
display->red_byte = display->modeinfo.red.offset >> 3;
display->green_byte = display->modeinfo.green.offset >> 3;
display->blue_byte = display->modeinfo.blue.offset >> 3;
}
#ifdef ENABLE_SHADOW_FB
if (_gdk_fb_screen_angle % 2 == 0)
{
display->fb_width = display->modeinfo.xres;
display->fb_height = display->modeinfo.yres;
}
else
{
display->fb_width = display->modeinfo.yres;
display->fb_height = display->modeinfo.xres;
}
display->fb_stride =
display->fb_width * (display->modeinfo.bits_per_pixel / 8);
display->fb_mem = g_malloc(display->fb_height * display->fb_stride);
#else
display->fb_mem = display->fb_mmap;
display->fb_width = display->modeinfo.xres;
display->fb_height = display->modeinfo.yres;
display->fb_stride = display->sinfo.line_length;
#endif
return display;
}
static void
gdk_fb_display_destroy (GdkFBDisplay *display)
{
/* Restore old framebuffer mode */
ioctl (display->fb_fd, FBIOPUT_VSCREENINFO, &display->orig_modeinfo);
/* Enable normal text on the console */
ioctl (display->fb_fd, KDSETMODE, KD_TEXT);
munmap (display->fb_mmap, display->modeinfo.yres * display->sinfo.line_length);
close (display->fb_fd);
ioctl (display->console_fd, VT_ACTIVATE, display->start_vt);
ioctl (display->console_fd, VT_WAITACTIVE, display->start_vt);
if (display->vt != display->start_vt)
ioctl (display->console_fd, VT_DISALLOCATE, display->vt);
close (display->tty_fd);
close (display->console_fd);
g_free (display);
}
void
_gdk_windowing_init (int *argc, char ***argv)
{
if (gdk_initialized)
return;
/* Create new session and become session leader */
setsid();
gdk_display = gdk_fb_display_new ();
if (!gdk_display)
return;
gdk_shadow_fb_init ();
gdk_fb_manager_connect (gdk_display);
if (!gdk_fb_keyboard_init (!gdk_display->manager_blocked))
{
g_warning ("Failed to initialize keyboard");
gdk_fb_display_destroy (gdk_display);
gdk_display = NULL;
return;
}
if (!gdk_fb_mouse_init (!gdk_display->manager_blocked))
{
g_warning ("Failed to initialize mouse");
gdk_fb_keyboard_close ();
gdk_fb_display_destroy (gdk_display);
gdk_display = NULL;
return;
}
/* Although atexit is evil, we need it here because otherwise the
* keyboard is left in a bad state. you can still run 'reset' but
* that gets annoying after running testgtk for the 20th time.
*/
g_atexit(_gdk_windowing_exit);
gdk_initialized = TRUE;
_gdk_selection_property = gdk_atom_intern ("GDK_SELECTION", FALSE);
}
void
_gdk_windowing_set_default_display (GdkDisplay *display)
{
}
/*
*--------------------------------------------------------------
* gdk_pointer_grab
*
* Grabs the pointer to a specific window
*
* Arguments:
* "window" is the window which will receive the grab
* "owner_events" specifies whether events will be reported as is,
* or relative to "window"
* "event_mask" masks only interesting events
* "confine_to" limits the cursor movement to the specified window
* "cursor" changes the cursor for the duration of the grab
* "time" specifies the time
*
* Results:
*
* Side effects:
* requires a corresponding call to gdk_pointer_ungrab
*
*--------------------------------------------------------------
*/
GdkGrabStatus
gdk_pointer_grab (GdkWindow * window,
gint owner_events,
GdkEventMask event_mask,
GdkWindow * confine_to,
GdkCursor * cursor,
guint32 time)
{
return gdk_fb_pointer_grab (window,
owner_events,
event_mask,
confine_to,
cursor,
time, FALSE);
}
static gboolean _gdk_fb_pointer_implicit_grab = FALSE;
GdkGrabStatus
gdk_fb_pointer_grab (GdkWindow * window,
gint owner_events,
GdkEventMask event_mask,
GdkWindow * confine_to,
GdkCursor * cursor,
guint32 time,
gboolean implicit_grab)
{
g_return_val_if_fail (window != NULL, 0);
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
g_return_val_if_fail (confine_to == NULL || GDK_IS_WINDOW (confine_to), 0);
if (_gdk_fb_pointer_grab_window)
{
if (implicit_grab && !_gdk_fb_pointer_implicit_grab)
return GDK_GRAB_ALREADY_GRABBED;
gdk_pointer_ungrab (time);
}
gdk_fb_window_send_crossing_events (NULL,
window,
GDK_CROSSING_GRAB);
if (event_mask & GDK_BUTTON_MOTION_MASK)
event_mask |=
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON2_MOTION_MASK |
GDK_BUTTON3_MOTION_MASK;
_gdk_fb_pointer_implicit_grab = implicit_grab;
_gdk_fb_pointer_grab_window = gdk_window_ref (window);
_gdk_fb_pointer_grab_owner_events = owner_events;
_gdk_fb_pointer_grab_confine = confine_to ? gdk_window_ref (confine_to) : NULL;
_gdk_fb_pointer_grab_events = event_mask;
_gdk_fb_pointer_grab_cursor = cursor ? gdk_cursor_ref (cursor) : NULL;
if (cursor)
gdk_fb_cursor_reset ();
return GDK_GRAB_SUCCESS;
}
/*
*--------------------------------------------------------------
* gdk_display_pointer_ungrab
*
* Releases any pointer grab
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
void
gdk_display_pointer_ungrab (GdkDisplay *display,
guint32 time)
{
gdk_fb_pointer_ungrab (time, FALSE);
}
void
gdk_fb_pointer_ungrab (guint32 time, gboolean implicit_grab)
{
gboolean have_grab_cursor = _gdk_fb_pointer_grab_cursor && 1;
GdkWindow *mousewin;
GdkWindow *old_grab_window;
if (!_gdk_fb_pointer_grab_window)
return;
if (implicit_grab && !_gdk_fb_pointer_implicit_grab)
return;
if (_gdk_fb_pointer_grab_confine)
gdk_window_unref (_gdk_fb_pointer_grab_confine);
_gdk_fb_pointer_grab_confine = NULL;
if (_gdk_fb_pointer_grab_cursor)
gdk_cursor_unref (_gdk_fb_pointer_grab_cursor);
_gdk_fb_pointer_grab_cursor = NULL;
if (have_grab_cursor)
gdk_fb_cursor_reset ();
old_grab_window = _gdk_fb_pointer_grab_window;
_gdk_fb_pointer_grab_window = NULL;
_gdk_fb_pointer_implicit_grab = FALSE;
mousewin = gdk_window_at_pointer (NULL, NULL);
gdk_fb_window_send_crossing_events (old_grab_window,
mousewin,
GDK_CROSSING_UNGRAB);
if (old_grab_window)
gdk_window_unref (old_grab_window);
}
/*
*--------------------------------------------------------------
* gdk_display_pointer_is_grabbed
*
* Tell wether there is an active x pointer grab in effect
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_display_pointer_is_grabbed (GdkDisplay *display)
{
return _gdk_fb_pointer_grab_window != NULL;
}
/*
*--------------------------------------------------------------
* gdk_keyboard_grab
*
* Grabs the keyboard to a specific window
*
* Arguments:
* "window" is the window which will receive the grab
* "owner_events" specifies whether events will be reported as is,
* or relative to "window"
* "time" specifies the time
*
* Results:
*
* Side effects:
* requires a corresponding call to gdk_keyboard_ungrab
*
*--------------------------------------------------------------
*/
GdkGrabStatus
gdk_keyboard_grab (GdkWindow *window,
gint owner_events,
guint32 time)
{
g_return_val_if_fail (window != NULL, 0);
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
if (_gdk_fb_pointer_grab_window)
gdk_keyboard_ungrab (time);
_gdk_fb_keyboard_grab_window = gdk_window_ref (window);
_gdk_fb_keyboard_grab_owner_events = owner_events;
return GDK_GRAB_SUCCESS;
}
/*
*--------------------------------------------------------------
* gdk_display_keyboard_ungrab
*
* Releases any keyboard grab
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
void
gdk_display_keyboard_ungrab (GdkDisplay *display,
guint32 time)
{
if (_gdk_fb_keyboard_grab_window)
gdk_window_unref (_gdk_fb_keyboard_grab_window);
_gdk_fb_keyboard_grab_window = NULL;
}
gboolean
gdk_pointer_grab_info_libgtk_only (GdkDisplay *display,
GdkWindow **grab_window,
gboolean *owner_events)
{
if (_gdk_fb_pointer_grab_window)
{
if (grab_window)
*grab_window = (GdkWindow *)_gdk_fb_pointer_grab_window;
if (owner_events)
*owner_events = _gdk_fb_pointer_grab_owner_events;
return TRUE;
}
else
return FALSE;
}
gboolean
gdk_keyboard_grab_info_libgtk_only (GdkDisplay *display,
GdkWindow **grab_window,
gboolean *owner_events)
{
if (_gdk_fb_keyboard_grab_window)
{
if (grab_window)
*grab_window = (GdkWindow *)_gdk_fb_keyboard_grab_window;
if (owner_events)
*owner_events = _gdk_fb_keyboard_grab_owner_events;
return TRUE;
}
else
return FALSE;
}
/*
*--------------------------------------------------------------
* gdk_screen_get_width
*
* Return the width of the screen.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_screen_get_width (GdkScreen *screen)
{
return gdk_display->fb_width;
}
/*
*--------------------------------------------------------------
* gdk_screen_get_height
*
* Return the height of the screen.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_screen_get_height (GdkScreen *screen)
{
return gdk_display->fb_height;
}
/*
*--------------------------------------------------------------
* gdk_screen_get_width_mm
*
* Return the width of the screen in millimeters.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_screen_get_width_mm (GdkScreen *screen)
{
return 0.5 + gdk_screen_width () * (25.4 / 72.);
}
/*
*--------------------------------------------------------------
* gdk_screen_get_height_mm
*
* Return the height of the screen in millimeters.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_screen_get_height_mm (GdkScreen *screen)
{
return 0.5 + gdk_screen_height () * (25.4 / 72.);
}
void
_gdk_windowing_display_set_sm_client_id (GdkDisplay* display,
const gchar* sm_client_id)
{
}
extern void keyboard_shutdown(void);
void
_gdk_windowing_exit (void)
{
struct sigaction action;
/* don't get interrupted while exiting
* (cf. gdkrender-fb.c:gdk_shadow_fb_init) */
action.sa_handler = SIG_IGN;
sigemptyset (&action.sa_mask);
action.sa_flags = 0;
gdk_fb_mouse_close ();
/*leak g_free (gdk_fb_mouse);*/
gdk_fb_keyboard_close ();
/*leak g_free (gdk_fb_keyboard);*/
gdk_fb_display_destroy (gdk_display);
gdk_display = NULL;
}
gchar *
gdk_get_display(void)
{
gchar *s;
s = getenv ("GDK_DISPLAY");
if (s==0)
s = "/dev/fb0";
return g_strdup (s);
}
void
gdk_display_beep (GdkDisplay *display)
{
static int pitch = 600, duration = 100;
gulong arg;
/* Thank you XFree86 */
arg = ((1193190 / pitch) & 0xffff) |
(((unsigned long)duration) << 16);
ioctl (gdk_display->tty_fd, KDMKTONE, arg);
}
/* utils */
static const guint type_masks[] = {
GDK_SUBSTRUCTURE_MASK, /* GDK_DELETE = 0, */
GDK_STRUCTURE_MASK, /* GDK_DESTROY = 1, */
GDK_EXPOSURE_MASK, /* GDK_EXPOSE = 2, */
GDK_POINTER_MOTION_MASK, /* GDK_MOTION_NOTIFY = 3, */
GDK_BUTTON_PRESS_MASK, /* GDK_BUTTON_PRESS = 4, */
GDK_BUTTON_PRESS_MASK, /* GDK_2BUTTON_PRESS = 5, */
GDK_BUTTON_PRESS_MASK, /* GDK_3BUTTON_PRESS = 6, */
GDK_BUTTON_RELEASE_MASK, /* GDK_BUTTON_RELEASE = 7, */
GDK_KEY_PRESS_MASK, /* GDK_KEY_PRESS = 8, */
GDK_KEY_RELEASE_MASK, /* GDK_KEY_RELEASE = 9, */
GDK_ENTER_NOTIFY_MASK, /* GDK_ENTER_NOTIFY = 10, */
GDK_LEAVE_NOTIFY_MASK, /* GDK_LEAVE_NOTIFY = 11, */
GDK_FOCUS_CHANGE_MASK, /* GDK_FOCUS_CHANGE = 12, */
GDK_STRUCTURE_MASK, /* GDK_CONFIGURE = 13, */
GDK_VISIBILITY_NOTIFY_MASK, /* GDK_MAP = 14, */
GDK_VISIBILITY_NOTIFY_MASK, /* GDK_UNMAP = 15, */
GDK_PROPERTY_CHANGE_MASK, /* GDK_PROPERTY_NOTIFY = 16, */
GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_CLEAR = 17, */
GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_REQUEST = 18, */
GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_NOTIFY = 19, */
GDK_PROXIMITY_IN_MASK, /* GDK_PROXIMITY_IN = 20, */
GDK_PROXIMITY_OUT_MASK, /* GDK_PROXIMITY_OUT = 21, */
GDK_ALL_EVENTS_MASK, /* GDK_DRAG_ENTER = 22, */
GDK_ALL_EVENTS_MASK, /* GDK_DRAG_LEAVE = 23, */
GDK_ALL_EVENTS_MASK, /* GDK_DRAG_MOTION = 24, */
GDK_ALL_EVENTS_MASK, /* GDK_DRAG_STATUS = 25, */
GDK_ALL_EVENTS_MASK, /* GDK_DROP_START = 26, */
GDK_ALL_EVENTS_MASK, /* GDK_DROP_FINISHED = 27, */
GDK_ALL_EVENTS_MASK, /* GDK_CLIENT_EVENT = 28, */
GDK_VISIBILITY_NOTIFY_MASK, /* GDK_VISIBILITY_NOTIFY = 29, */
GDK_EXPOSURE_MASK, /* GDK_NO_EXPOSE = 30, */
GDK_SCROLL_MASK /* GDK_SCROLL = 31 */
};
GdkWindow *
gdk_fb_other_event_window (GdkWindow *window,
GdkEventType type)
{
guint32 evmask;
GdkWindow *w;
w = window;
while (w != _gdk_parent_root)
{
/* Huge hack, so that we don't propagate events to GtkWindow->frame */
if ((w != window) &&
(GDK_WINDOW_P (w)->window_type != GDK_WINDOW_CHILD) &&
(g_object_get_data (G_OBJECT (w), "gdk-window-child-handler")))
break;
evmask = GDK_WINDOW_OBJECT(window)->event_mask;
if (evmask & type_masks[type])
return w;
w = gdk_window_get_parent (w);
}
return NULL;
}
GdkWindow *
gdk_fb_pointer_event_window (GdkWindow *window,
GdkEventType type)
{
guint evmask;
GdkModifierType mask;
GdkWindow *w;
gdk_fb_mouse_get_info (NULL, NULL, &mask);
if (_gdk_fb_pointer_grab_window &&
!_gdk_fb_pointer_grab_owner_events)
{
evmask = _gdk_fb_pointer_grab_events;
if (evmask & (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK | GDK_BUTTON3_MOTION_MASK))
{
if (((mask & GDK_BUTTON1_MASK) && (evmask & GDK_BUTTON1_MOTION_MASK)) ||
((mask & GDK_BUTTON2_MASK) && (evmask & GDK_BUTTON2_MOTION_MASK)) ||
((mask & GDK_BUTTON3_MASK) && (evmask & GDK_BUTTON3_MOTION_MASK)))
evmask |= GDK_POINTER_MOTION_MASK;
}
if (evmask & type_masks[type])
return _gdk_fb_pointer_grab_window;
else
return NULL;
}
w = window;
while (w != _gdk_parent_root)
{
/* Huge hack, so that we don't propagate events to GtkWindow->frame */
if ((w != window) &&
(GDK_WINDOW_P (w)->window_type != GDK_WINDOW_CHILD) &&
(g_object_get_data (G_OBJECT (w), "gdk-window-child-handler")))
break;
evmask = GDK_WINDOW_OBJECT(window)->event_mask;
if (evmask & (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK | GDK_BUTTON3_MOTION_MASK))
{
if (((mask & GDK_BUTTON1_MASK) && (evmask & GDK_BUTTON1_MOTION_MASK)) ||
((mask & GDK_BUTTON2_MASK) && (evmask & GDK_BUTTON2_MOTION_MASK)) ||
((mask & GDK_BUTTON3_MASK) && (evmask & GDK_BUTTON3_MOTION_MASK)))
evmask |= GDK_POINTER_MOTION_MASK;
}
if (evmask & type_masks[type])
return w;
w = gdk_window_get_parent (w);
}
if (_gdk_fb_pointer_grab_window &&
_gdk_fb_pointer_grab_owner_events)
{
evmask = _gdk_fb_pointer_grab_events;
if (evmask & (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK | GDK_BUTTON3_MOTION_MASK))
{
if (((mask & GDK_BUTTON1_MASK) && (evmask & GDK_BUTTON1_MOTION_MASK)) ||
((mask & GDK_BUTTON2_MASK) && (evmask & GDK_BUTTON2_MOTION_MASK)) ||
((mask & GDK_BUTTON3_MASK) && (evmask & GDK_BUTTON3_MOTION_MASK)))
evmask |= GDK_POINTER_MOTION_MASK;
}
if (evmask & type_masks[type])
return _gdk_fb_pointer_grab_window;
}
return NULL;
}
GdkWindow *
gdk_fb_keyboard_event_window (GdkWindow *window,
GdkEventType type)
{
guint32 evmask;
GdkWindow *w;
if (_gdk_fb_keyboard_grab_window &&
!_gdk_fb_keyboard_grab_owner_events)
{
return _gdk_fb_keyboard_grab_window;
}
w = window;
while (w != _gdk_parent_root)
{
/* Huge hack, so that we don't propagate events to GtkWindow->frame */
if ((w != window) &&
(GDK_WINDOW_P (w)->window_type != GDK_WINDOW_CHILD) &&
(g_object_get_data (G_OBJECT (w), "gdk-window-child-handler")))
break;
evmask = GDK_WINDOW_OBJECT(window)->event_mask;
if (evmask & type_masks[type])
return w;
w = gdk_window_get_parent (w);
}
if (_gdk_fb_keyboard_grab_window &&
_gdk_fb_keyboard_grab_owner_events)
{
return _gdk_fb_keyboard_grab_window;
}
return NULL;
}
GdkEvent *
gdk_event_make (GdkWindow *window,
GdkEventType type,
gboolean append_to_queue)
{
GdkEvent *event = gdk_event_new (type);
guint32 the_time;
the_time = gdk_fb_get_time ();
event->any.window = gdk_window_ref (window);
event->any.send_event = FALSE;
switch (type)
{
case GDK_MOTION_NOTIFY:
event->motion.time = the_time;
event->motion.axes = NULL;
break;
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
event->button.time = the_time;
event->button.axes = NULL;
break;
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
event->key.time = the_time;
break;
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
event->crossing.time = the_time;
break;
case GDK_PROPERTY_NOTIFY:
event->property.time = the_time;
break;
case GDK_SELECTION_CLEAR:
case GDK_SELECTION_REQUEST:
case GDK_SELECTION_NOTIFY:
event->selection.time = the_time;
break;
case GDK_PROXIMITY_IN:
case GDK_PROXIMITY_OUT:
event->proximity.time = the_time;
break;
case GDK_DRAG_ENTER:
case GDK_DRAG_LEAVE:
case GDK_DRAG_MOTION:
case GDK_DRAG_STATUS:
case GDK_DROP_START:
case GDK_DROP_FINISHED:
event->dnd.time = the_time;
break;
case GDK_FOCUS_CHANGE:
case GDK_CONFIGURE:
case GDK_MAP:
case GDK_UNMAP:
case GDK_CLIENT_EVENT:
case GDK_VISIBILITY_NOTIFY:
case GDK_NO_EXPOSE:
case GDK_SCROLL:
case GDK_DELETE:
case GDK_DESTROY:
case GDK_EXPOSE:
default:
break;
}
if (append_to_queue)
_gdk_event_queue_append (gdk_display_get_default (), event);
return event;
}
void
gdk_fb_set_rotation (GdkFBAngle angle)
{
if (angle == _gdk_fb_screen_angle)
return;
#ifdef ENABLE_SHADOW_FB
if (gdk_display)
{
gdk_shadow_fb_stop_updates ();
gdk_fb_cursor_hide ();
_gdk_fb_screen_angle = angle;
if (angle % 2 == 0)
{
gdk_display->fb_width = gdk_display->modeinfo.xres;
gdk_display->fb_height = gdk_display->modeinfo.yres;
}
else
{
gdk_display->fb_width = gdk_display->modeinfo.yres;
gdk_display->fb_height = gdk_display->modeinfo.xres;
}
gdk_display->fb_stride =
gdk_display->fb_width * (gdk_display->modeinfo.bits_per_pixel / 8);
gdk_fb_recompute_all();
gdk_fb_redraw_all ();
gdk_fb_cursor_unhide ();
}
else
_gdk_fb_screen_angle = angle;
#else
g_warning ("Screen rotation without shadow fb not supported.");
#endif
}
void
gdk_error_trap_push (void)
{
}
gint
gdk_error_trap_pop (void)
{
return 0;
}
void
gdk_notify_startup_complete (void)
{
}
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