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libtdevnc/x11vnc/screen.c

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/* -- screen.c -- */
#include "x11vnc.h"
#include "xevents.h"
#include "xwrappers.h"
#include "xinerama.h"
#include "xdamage.h"
#include "win_utils.h"
#include "cleanup.h"
#include "userinput.h"
#include "scan.h"
#include "user.h"
#include "rates.h"
#include "pointer.h"
#include "keyboard.h"
#include "cursor.h"
#include "connections.h"
#include "remote.h"
#include "unixpw.h"
#include "sslcmds.h"
#include "sslhelper.h"
#include "v4l.h"
#include "linuxfb.h"
#include "macosx.h"
#include "macosxCG.h"
#include "avahi.h"
#include "solid.h"
#include "inet.h"
#include "xrandr.h"
#include "xrecord.h"
#include "pm.h"
#include <rfb/rfbclient.h>
void set_greyscale_colormap(void);
void set_hi240_colormap(void);
void unset_colormap(void);
void set_colormap(int reset);
void set_nofb_params(int restore);
void set_raw_fb_params(int restore);
void do_new_fb(int reset_mem);
void free_old_fb(void);
void check_padded_fb(void);
void install_padded_fb(char *geom);
XImage *initialize_xdisplay_fb(void);
void parse_scale_string(char *str, double *factor_x, double *factor_y, int *scaling, int *blend,
int *nomult4, int *pad, int *interpolate, int *numer, int *denom, int w_in, int h_in);
int parse_rotate_string(char *str, int *mode);
int scale_round(int len, double fac);
void initialize_screen(int *argc, char **argv, XImage *fb);
void set_vnc_desktop_name(void);
void announce(int lport, int ssl, char *iface);
char *vnc_reflect_guess(char *str, char **raw_fb_addr);
void vnc_reflect_process_client(void);
rfbBool vnc_reflect_send_pointer(int x, int y, int mask);
rfbBool vnc_reflect_send_key(uint32_t key, rfbBool down);
rfbBool vnc_reflect_send_cuttext(char *str, int len);
static void debug_colormap(XImage *fb);
static void set_visual(char *str);
static void nofb_hook(rfbClientPtr cl);
static void remove_fake_fb(void);
static void install_fake_fb(int w, int h, int bpp);
static void initialize_snap_fb(void);
XImage *initialize_raw_fb(int);
static void initialize_clipshift(void);
static int wait_until_mapped(Window win);
static void setup_scaling(int *width_in, int *height_in);
static void check_filexfer(void);
static void record_last_fb_update(void);
static void check_cursor_changes(void);
static int choose_delay(double dt);
int rawfb_reset = -1;
int rawfb_dev_video = 0;
int rawfb_vnc_reflect = 0;
/*
* X11 and rfb display/screen related routines
*/
/*
* Some handling of 8bpp PseudoColor colormaps. Called for initializing
* the clients and dynamically if -flashcmap is specified.
*/
#define NCOLOR 256
/* this is only for rawfb */
void set_greyscale_colormap(void) {
int i;
if (! screen) {
return;
}
if (screen->colourMap.data.shorts) {
free(screen->colourMap.data.shorts);
screen->colourMap.data.shorts = NULL;
}
if (0) fprintf(stderr, "set_greyscale_colormap: %s\n", raw_fb_pixfmt);
screen->colourMap.count = NCOLOR;
screen->serverFormat.trueColour = FALSE;
screen->colourMap.is16 = TRUE;
screen->colourMap.data.shorts = (unsigned short *)
malloc(3*sizeof(unsigned short) * NCOLOR);
for(i = 0; i < NCOLOR; i++) {
unsigned short lvl = i * 256;
screen->colourMap.data.shorts[i*3+0] = lvl;
screen->colourMap.data.shorts[i*3+1] = lvl;
screen->colourMap.data.shorts[i*3+2] = lvl;
}
rfbSetClientColourMaps(screen, 0, NCOLOR);
}
/* this is specific to bttv rf tuner card */
void set_hi240_colormap(void) {
int i;
if (! screen) {
return;
}
if (0) fprintf(stderr, "set_hi240_colormap: %s\n", raw_fb_pixfmt);
if (screen->colourMap.data.shorts) {
free(screen->colourMap.data.shorts);
screen->colourMap.data.shorts = NULL;
}
screen->colourMap.count = 256;
screen->serverFormat.trueColour = FALSE;
screen->colourMap.is16 = TRUE;
screen->colourMap.data.shorts = (unsigned short *)
calloc(3*sizeof(unsigned short) * 256, 1);
for(i = 0; i < 225; i++) {
int r, g, b;
r = ( (i/5) % 5 ) * 255.0 / 4 + 0.5;
g = ( (i/25) ) * 255.0 / 8 + 0.5;
b = ( i % 5 ) * 255.0 / 4 + 0.5;
screen->colourMap.data.shorts[(i+16)*3+0] = (unsigned short) (r * 256);
screen->colourMap.data.shorts[(i+16)*3+1] = (unsigned short) (g * 256);
screen->colourMap.data.shorts[(i+16)*3+2] = (unsigned short) (b * 256);
}
rfbSetClientColourMaps(screen, 0, 256);
}
/* this is only for rawfb */
void unset_colormap(void) {
if (! screen) {
return;
}
if (screen->colourMap.data.shorts) {
free(screen->colourMap.data.shorts);
screen->colourMap.data.shorts = NULL;
}
screen->serverFormat.trueColour = TRUE;
if (0) fprintf(stderr, "unset_colormap: %s\n", raw_fb_pixfmt);
}
/* this is X11 case */
void set_colormap(int reset) {
#if NO_X11
if (!reset) {}
return;
#else
static int init = 1;
static XColor *color = NULL, *prev = NULL;
static int ncolor = 0;
Colormap cmap;
Visual *vis;
int i, ncells, diffs = 0;
if (reset) {
init = 1;
ncolor = 0;
if (screen->colourMap.data.shorts) {
free(screen->colourMap.data.shorts);
screen->colourMap.data.shorts = NULL;
}
if (color) {
free(color);
color = NULL;
}
if (prev) {
free(prev);
prev = NULL;
}
}
if (init) {
if (depth > 16) {
ncolor = NCOLOR;
} else if (depth > 8) {
ncolor = 1 << depth;
} else {
ncolor = NCOLOR;
}
screen->colourMap.count = ncolor;
screen->serverFormat.trueColour = FALSE;
screen->colourMap.is16 = TRUE;
screen->colourMap.data.shorts = (unsigned short *)
malloc(3*sizeof(unsigned short) * ncolor);
}
if (color == NULL) {
color = (XColor *) calloc(ncolor * sizeof(XColor), 1);
prev = (XColor *) calloc(ncolor * sizeof(XColor), 1);
}
for (i=0; i < ncolor; i++) {
prev[i].red = color[i].red;
prev[i].green = color[i].green;
prev[i].blue = color[i].blue;
}
RAWFB_RET_VOID
X_LOCK;
cmap = DefaultColormap(dpy, scr);
ncells = CellsOfScreen(ScreenOfDisplay(dpy, scr));
vis = default_visual;
if (subwin) {
XWindowAttributes attr;
if (XGetWindowAttributes(dpy, window, &attr)) {
cmap = attr.colormap;
vis = attr.visual;
ncells = vis->map_entries;
}
}
if (ncells != ncolor) {
if (! shift_cmap) {
screen->colourMap.count = ncells;
}
}
if (init && ! quiet) {
rfbLog("set_colormap: number of cells: %d, "
"ncolor(%d) is %d.\n", ncells, depth, ncolor);
}
if (flash_cmap && ! init) {
XWindowAttributes attr;
Window c;
int tries = 0;
c = window;
while (c && tries++ < 16) {
c = query_pointer(c);
if (valid_window(c, &attr, 0)) {
if (attr.colormap && attr.map_installed) {
cmap = attr.colormap;
vis = attr.visual;
ncells = vis->map_entries;
break;
}
} else {
break;
}
}
}
if (ncells > ncolor && ! quiet) {
rfbLog("set_colormap: big problem: ncells=%d > %d\n",
ncells, ncolor);
}
if (vis->class == TrueColor || vis->class == DirectColor) {
/*
* Kludge to make 8bpp TrueColor & DirectColor be like
* the StaticColor map. The ncells = 8 is "8 per subfield"
* mentioned in xdpyinfo. Looks OK... perhaps fortuitously.
*/
if (ncells == 8 && ! shift_cmap) {
ncells = ncolor;
}
}
for (i=0; i < ncells; i++) {
color[i].pixel = i;
color[i].pad = 0;
}
XQueryColors(dpy, cmap, color, ncells);
X_UNLOCK;
for(i = ncells - 1; i >= 0; i--) {
int k = i + shift_cmap;
screen->colourMap.data.shorts[i*3+0] = color[i].red;
screen->colourMap.data.shorts[i*3+1] = color[i].green;
screen->colourMap.data.shorts[i*3+2] = color[i].blue;
if (prev[i].red != color[i].red ||
prev[i].green != color[i].green ||
prev[i].blue != color[i].blue ) {
diffs++;
}
if (shift_cmap && k >= 0 && k < ncolor) {
/* kludge to copy the colors to higher pixel values */
screen->colourMap.data.shorts[k*3+0] = color[i].red;
screen->colourMap.data.shorts[k*3+1] = color[i].green;
screen->colourMap.data.shorts[k*3+2] = color[i].blue;
}
}
if (diffs && ! init) {
if (! all_clients_initialized()) {
rfbLog("set_colormap: warning: sending cmap "
"with uninitialized clients.\n");
}
if (shift_cmap) {
rfbSetClientColourMaps(screen, 0, ncolor);
} else {
rfbSetClientColourMaps(screen, 0, ncells);
}
}
init = 0;
#endif /* NO_X11 */
}
static void debug_colormap(XImage *fb) {
static int debug_cmap = -1;
int i, k, *histo;
int ncolor;
if (debug_cmap < 0) {
if (getenv("DEBUG_CMAP") != NULL) {
debug_cmap = 1;
} else {
debug_cmap = 0;
}
}
if (! debug_cmap) {
return;
}
if (! fb) {
return;
}
if (fb->bits_per_pixel > 16) {
return;
}
ncolor = screen->colourMap.count;
histo = (int *) calloc(ncolor * sizeof(int), 1);
for (i=0; i < ncolor; i++) {
histo[i] = 0;
}
for (k = 0; k < fb->width * fb->height; k++) {
unsigned char n;
char c = *(fb->data + k);
n = (unsigned char) c;
histo[n]++;
}
fprintf(stderr, "\nColormap histogram for current screen contents:\n");
for (i=0; i < ncolor; i++) {
unsigned short r = screen->colourMap.data.shorts[i*3+0];
unsigned short g = screen->colourMap.data.shorts[i*3+1];
unsigned short b = screen->colourMap.data.shorts[i*3+2];
fprintf(stderr, " %03d: %7d %04x/%04x/%04x", i, histo[i],
r, g, b);
if ((i+1) % 2 == 0) {
fprintf(stderr, "\n");
}
}
free(histo);
fprintf(stderr, "\n");
}
/*
* Experimental mode to force the visual of the window instead of querying
* it. Used for testing, overriding some rare cases (win2vnc), and for
* -overlay . Input string can be a decimal or 0x hex or something like
* TrueColor or TrueColor:24 to force a depth as well.
*
* visual_id and possibly visual_depth are set.
*/
static void set_visual(char *str) {
#if NO_X11
RAWFB_RET_VOID
if (!str) {}
return;
#else
int vis, vdepth, defdepth;
XVisualInfo vinfo;
char *p, *vstring = strdup(str);
RAWFB_RET_VOID
defdepth = DefaultDepth(dpy, scr);
visual_id = (VisualID) 0;
visual_depth = 0;
if (!strcmp(vstring, "ignore") || !strcmp(vstring, "default")
|| !strcmp(vstring, "")) {
free(vstring);
return;
}
/* set visual depth */
if ((p = strchr(vstring, ':')) != NULL) {
visual_depth = atoi(p+1);
*p = '\0';
vdepth = visual_depth;
} else {
vdepth = defdepth;
}
if (! quiet) {
fprintf(stderr, "\nVisual Info:\n");
fprintf(stderr, " set_visual(\"%s\")\n", str);
fprintf(stderr, " visual_depth: %d\n", vdepth);
}
/* set visual id number */
if (strcmp(vstring, "StaticGray") == 0) {
vis = StaticGray;
} else if (strcmp(vstring, "GrayScale") == 0) {
vis = GrayScale;
} else if (strcmp(vstring, "StaticColor") == 0) {
vis = StaticColor;
} else if (strcmp(vstring, "PseudoColor") == 0) {
vis = PseudoColor;
} else if (strcmp(vstring, "TrueColor") == 0) {
vis = TrueColor;
} else if (strcmp(vstring, "DirectColor") == 0) {
vis = DirectColor;
} else {
unsigned int v_in;
if (sscanf(vstring, "0x%x", &v_in) != 1) {
if (sscanf(vstring, "%u", &v_in) == 1) {
visual_id = (VisualID) v_in;
return;
}
rfbLogEnable(1);
rfbLog("invalid -visual arg: %s\n", vstring);
X_UNLOCK;
clean_up_exit(1);
}
visual_id = (VisualID) v_in;
free(vstring);
return;
}
if (! quiet) fprintf(stderr, " visual: %d\n", vis);
if (XMatchVisualInfo(dpy, scr, visual_depth, vis, &vinfo)) {
;
} else if (XMatchVisualInfo(dpy, scr, defdepth, vis, &vinfo)) {
;
} else {
rfbLogEnable(1);
rfbLog("could not find visual: %s\n", vstring);
X_UNLOCK;
clean_up_exit(1);
}
free(vstring);
/* set numerical visual id. */
visual_id = vinfo.visualid;
#endif /* NO_X11 */
}
void set_nofb_params(int restore) {
static int first = 1;
static int save[100];
static char *scroll = NULL;
int i = 0;
if (first) {
first = 0;
save[i++] = use_xfixes;
save[i++] = use_xdamage;
save[i++] = use_xrecord;
save[i++] = wireframe;
save[i++] = use_solid_bg;
save[i++] = overlay;
save[i++] = overlay_cursor;
save[i++] = using_shm;
save[i++] = single_copytile;
save[i++] = take_naps;
save[i++] = measure_speeds;
save[i++] = grab_buster;
save[i++] = show_cursor;
save[i++] = cursor_shape_updates;
save[i++] = cursor_pos_updates;
save[i++] = ncache;
scroll = scroll_copyrect;
}
if (restore) {
i = 0;
use_xfixes = save[i++];
use_xdamage = save[i++];
use_xrecord = save[i++];
wireframe = save[i++];
use_solid_bg = save[i++];
overlay = save[i++];
overlay_cursor = save[i++];
using_shm = save[i++];
single_copytile = save[i++];
take_naps = save[i++];
measure_speeds = save[i++];
grab_buster = save[i++];
show_cursor = save[i++];
cursor_shape_updates = save[i++];
cursor_pos_updates = save[i++];
ncache = save[i++];
scroll_copyrect = scroll;
if (cursor_shape_updates) {
restore_cursor_shape_updates(screen);
}
initialize_cursors_mode();
return;
}
use_xfixes = 0;
use_xdamage = 0;
use_xrecord = 0;
wireframe = 0;
use_solid_bg = 0;
overlay = 0;
overlay_cursor = 0;
using_shm = 0;
single_copytile = 1;
take_naps = 0;
measure_speeds = 0;
/* got_grab_buster? */
grab_buster = 0;
show_cursor = 0;
show_multiple_cursors = 0;
cursor_shape_updates = 0;
if (! got_cursorpos) {
cursor_pos_updates = 0;
}
ncache = 0;
scroll_copyrect = "never";
if (! quiet) {
rfbLog("disabling: xfixes, xdamage, solid, overlay, shm,\n");
rfbLog(" wireframe, scrollcopyrect, ncache,\n");
rfbLog(" noonetile, nap, cursor, %scursorshape\n",
got_cursorpos ? "" : "cursorpos, " );
rfbLog(" in -nofb mode.\n");
}
}
static char *raw_fb_orig_dpy = NULL;
void set_raw_fb_params(int restore) {
static int first = 1;
static int vo0, us0, sm0, ws0, wp0, wc0, wb0, na0, tn0;
static int xr0, xrm0, sb0, re0;
static char *mc0;
/*
* set turn off a bunch of parameters not compatible with
* -rawfb mode: 1) ignoring the X server 2) ignoring user input.
*/
if (first) {
/* at least save the initial settings... */
vo0 = view_only;
ws0 = watch_selection;
wp0 = watch_primary;
wc0 = watch_clipboard;
wb0 = watch_bell;
na0 = no_autorepeat;
sb0 = use_solid_bg;
us0 = use_snapfb;
sm0 = using_shm;
tn0 = take_naps;
xr0 = xrandr;
xrm0 = xrandr_maybe;
re0 = noxrecord;
mc0 = multiple_cursors_mode;
first = 0;
}
if (restore) {
view_only = vo0;
watch_selection = ws0;
watch_primary = wp0;
watch_clipboard = wc0;
watch_bell = wb0;
no_autorepeat = na0;
use_solid_bg = sb0;
use_snapfb = us0;
using_shm = sm0;
take_naps = tn0;
xrandr = xr0;
xrandr_maybe = xrm0;
noxrecord = re0;
multiple_cursors_mode = mc0;
if (! dpy && raw_fb_orig_dpy) {
dpy = XOpenDisplay_wr(raw_fb_orig_dpy);
if (dpy) {
if (! quiet) rfbLog("reopened DISPLAY: %s\n",
raw_fb_orig_dpy);
scr = DefaultScreen(dpy);
rootwin = RootWindow(dpy, scr);
check_xevents(1);
} else {
if (! quiet) rfbLog("WARNING: failed to reopen "
"DISPLAY: %s\n", raw_fb_orig_dpy);
}
}
return;
}
if (verbose) {
rfbLog("set_raw_fb_params: modifying settings for "
"-rawfb mode.\n");
}
if (got_noviewonly) {
/*
* The user input parameters are not unset under
* -noviewonly... this usage should be very rare
* (i.e. rawfb but also send user input to the X
* display, most likely using /dev/fb0 for some reason...)
*/
if (verbose) {
rfbLog("rawfb: -noviewonly mode: still sending mouse and\n");
rfbLog("rawfb: keyboard input to the X DISPLAY!!\n");
}
} else {
/* Normal case: */
#if 0
if (! view_only && ! pipeinput_str) {
if (! quiet) rfbLog(" rawfb: setting view_only\n");
view_only = 1;
}
#endif
if (raw_fb_str && strstr(raw_fb_str, "vnc") == raw_fb_str) {
;
} else if (watch_selection) {
if (verbose) rfbLog(" rawfb: turning off "
"watch_selection\n");
watch_selection = 0;
}
if (watch_primary) {
if (verbose) rfbLog(" rawfb: turning off "
"watch_primary\n");
watch_primary = 0;
}
if (watch_clipboard) {
if (verbose) rfbLog(" rawfb: turning off "
"watch_clipboard\n");
watch_clipboard = 0;
}
if (watch_bell) {
if (verbose) rfbLog(" rawfb: turning off watch_bell\n");
watch_bell = 0;
}
if (no_autorepeat) {
if (verbose) rfbLog(" rawfb: turning off "
"no_autorepeat\n");
no_autorepeat = 0;
}
if (use_solid_bg) {
if (verbose) rfbLog(" rawfb: turning off "
"use_solid_bg\n");
use_solid_bg = 0;
}
#ifndef MACOSX
if (raw_fb_str && strstr(raw_fb_str, "vnc") == raw_fb_str) {
;
} else {
multiple_cursors_mode = strdup("arrow");
}
#endif
}
if (using_shm) {
if (verbose) rfbLog(" rawfb: turning off using_shm\n");
using_shm = 0;
}
if (take_naps) {
if (verbose) rfbLog(" rawfb: turning off take_naps\n");
take_naps = 0;
}
if (xrandr) {
if (verbose) rfbLog(" rawfb: turning off xrandr\n");
xrandr = 0;
}
if (xrandr_maybe) {
if (verbose) rfbLog(" rawfb: turning off xrandr_maybe\n");
xrandr_maybe = 0;
}
if (! noxrecord) {
if (verbose) rfbLog(" rawfb: turning off xrecord\n");
noxrecord = 1;
}
}
/*
* Presumably under -nofb the clients will never request the framebuffer.
* However, we have gotten such a request... so let's just give them
* the current view on the display. n.b. x2vnc and perhaps win2vnc
* requests a 1x1 pixel for some workaround so sadly this evidently
* nearly always happens.
*/
static void nofb_hook(rfbClientPtr cl) {
XImage *fb;
XImage raw;
rfbLog("framebuffer requested in -nofb mode by client %s\n", cl->host);
/* ignore xrandr */
if (raw_fb && ! dpy) {
fb = &raw;
fb->data = (char *)malloc(32);
} else {
int use_real_ximage = 0;
if (use_real_ximage) {
fb = XGetImage_wr(dpy, window, 0, 0, dpy_x, dpy_y, AllPlanes, ZPixmap);
} else {
fb = &raw;
fb->data = (char *) calloc(dpy_x*dpy_y*bpp/8, 1);
}
}
main_fb = fb->data;
rfb_fb = main_fb;
screen->frameBuffer = rfb_fb;
screen->displayHook = NULL;
}
void free_old_fb(void) {
char *fbs[16];
int i, j, nfb = 0, db = 0;
fbs[nfb++] = main_fb; main_fb = NULL;
fbs[nfb++] = rfb_fb; rfb_fb = NULL;
fbs[nfb++] = cmap8to24_fb; cmap8to24_fb = NULL;
fbs[nfb++] = snap_fb; snap_fb = NULL;
fbs[nfb++] = rot_fb; rot_fb = NULL;
fbs[nfb++] = raw_fb; raw_fb = NULL;
for (i=0; i < nfb; i++) {
char *fb = fbs[i];
int freeit = 1;
if (! fb || fb < (char *) 0x10) {
continue;
}
for (j=0; j < i; j++) {
if (fb == fbs[j]) {
freeit = 0;
break;
}
}
if (freeit) {
if (db) fprintf(stderr, "free: %i %p\n", i, fb);
free(fb);
} else {
if (db) fprintf(stderr, "skip: %i %p\n", i, fb);
}
}
}
void do_new_fb(int reset_mem) {
XImage *fb;
/* for threaded we really should lock libvncserver out. */
if (use_threads) {
rfbLog("warning: changing framebuffers while threaded may\n");
rfbLog(" not work, do not use -threads if problems arise.\n");
}
if (reset_mem == 1) {
/* reset_mem == 2 is a hack for changing users... */
clean_shm(0);
free_tiles();
}
free_old_fb();
fb = initialize_xdisplay_fb();
initialize_screen(NULL, NULL, fb);
if (reset_mem) {
initialize_tiles();
initialize_blackouts_and_xinerama();
initialize_polling_images();
}
if (ncache) {
check_ncache(1, 0);
}
}
static void remove_fake_fb(void) {
if (! screen) {
return;
}
rfbLog("removing fake fb: 0x%x\n", fake_fb);
do_new_fb(1);
/*
* fake_fb is freed in do_new_fb(), but we set to NULL here to
* indicate it is gone.
*/
fake_fb = NULL;
}
static void install_fake_fb(int w, int h, int bpp) {
int bpc;
if (! screen) {
return;
}
if (fake_fb) {
free(fake_fb);
}
fake_fb = (char *) calloc(w*h*bpp/8, 1);
if (! fake_fb) {
rfbLog("could not create fake fb: %dx%d %d\n", w, h, bpp);
return;
}
bpc = guess_bits_per_color(bpp);
rfbLog("installing fake fb: %dx%d %d\n", w, h, bpp);
rfbLog("rfbNewFramebuffer(0x%x, 0x%x, %d, %d, %d, %d, %d)\n",
screen, fake_fb, w, h, bpc, 1, bpp/8);
rfbNewFramebuffer(screen, fake_fb, w, h, bpc, 1, bpp/8);
}
void check_padded_fb(void) {
if (! fake_fb) {
return;
}
if (unixpw_in_progress) return;
if (time(NULL) > pad_geometry_time+1 && all_clients_initialized()) {
remove_fake_fb();
}
}
void install_padded_fb(char *geom) {
int w, h;
int ok = 1;
if (! geom || *geom == '\0') {
ok = 0;
} else if (sscanf(geom, "%dx%d", &w, &h) != 2) {
ok = 0;
}
w = nabs(w);
h = nabs(h);
if (w < 5) w = 5;
if (h < 5) h = 5;
if (!ok) {
rfbLog("skipping invalid pad geometry: '%s'\n", NONUL(geom));
return;
}
install_fake_fb(w, h, bpp);
pad_geometry_time = time(NULL);
}
static void initialize_snap_fb(void) {
RAWFB_RET_VOID
if (snap_fb) {
free(snap_fb);
}
snap = XGetImage_wr(dpy, window, 0, 0, dpy_x, dpy_y, AllPlanes,
ZPixmap);
snap_fb = snap->data;
}
static rfbClient* client = NULL;
void vnc_reflect_bell(rfbClient *cl) {
if (cl) {}
if (sound_bell) {
if (unixpw_in_progress) {
return;
}
if (! all_clients_initialized()) {
rfbLog("vnc_reflect_bell: not sending bell: "
"uninitialized clients\n");
} else {
if (screen && client_count) {
rfbSendBell(screen);
}
}
}
}
void vnc_reflect_recv_cuttext(rfbClient *cl, const char *str, int len) {
if (cl) {}
if (unixpw_in_progress) {
return;
}
if (! watch_selection) {
return;
}
if (! all_clients_initialized()) {
rfbLog("vnc_reflect_recv_cuttext: no send: uninitialized clients\n");
return; /* some clients initializing, cannot send */
}
rfbSendServerCutText(screen, (char *)str, len);
}
void vnc_reflect_got_update(rfbClient *cl, int x, int y, int w, int h) {
if (cl) {}
if (use_xdamage) {
static int first = 1;
if (first) {
collect_non_X_xdamage(-1, -1, -1, -1, 0);
first = 0;
}
collect_non_X_xdamage(x, y, w, h, 1);
}
}
void vnc_reflect_got_cursorshape(rfbClient *cl, int xhot, int yhot, int width, int height, int bytesPerPixel) {
static int serial = 1;
int i, j;
char *pixels = NULL;
unsigned long r, g, b;
unsigned int ui = 0;
unsigned long red_mask, green_mask, blue_mask;
if (cl) {}
if (unixpw_in_progress) {
return;
}
if (! all_clients_initialized()) {
rfbLog("vnc_reflect_got_copyshape: no send: uninitialized clients\n");
return; /* some clients initializing, cannot send */
}
if (! client->rcSource) {
return;
}
if (bytesPerPixel != 1 && bytesPerPixel != 2 && bytesPerPixel != 4) {
return;
}
red_mask = (client->format.redMax << client->format.redShift);
green_mask = (client->format.greenMax << client->format.greenShift);
blue_mask = (client->format.blueMax << client->format.blueShift);
pixels = (char *)malloc(4*width*height);
for (j=0; j<height; j++) {
for (i=0; i<width; i++) {
unsigned int* uip;
unsigned char* uic;
int m;
if (bytesPerPixel == 1) {
unsigned char* p = (unsigned char *) client->rcSource;
ui = (unsigned long) *(p + j * width + i);
} else if (bytesPerPixel == 2) {
unsigned short* p = (unsigned short *) client->rcSource;
ui = (unsigned long) *(p + j * width + i);
} else if (bytesPerPixel == 4) {
unsigned int* p = (unsigned int *) client->rcSource;
ui = (unsigned long) *(p + j * width + i);
}
r = (red_mask & ui) >> client->format.redShift;
g = (green_mask & ui) >> client->format.greenShift;
b = (blue_mask & ui) >> client->format.blueShift;
r = (255 * r) / client->format.redMax;
g = (255 * g) / client->format.greenMax;
b = (255 * b) / client->format.blueMax;
ui = (r << 16 | g << 8 | b << 0) ;
uic = (unsigned char *)client->rcMask;
m = (int) *(uic + j * width + i);
if (m) {
ui |= 0xff000000;
}
uip = (unsigned int *)pixels;
*(uip + j * width + i) = ui;
}
}
store_cursor(serial++, (unsigned long*) pixels, width, height, 32, xhot, yhot);
free(pixels);
set_cursor(cursor_x, cursor_y, get_which_cursor());
}
static void from_libvncclient_CopyRectangleFromRectangle(rfbClient* client, int src_x, int src_y, int w, int h, int dest_x, int dest_y) {
int i,j;
#define COPY_RECT_FROM_RECT(BPP) \
{ \
uint##BPP##_t* _buffer=((uint##BPP##_t*)client->frameBuffer)+(src_y-dest_y)*client->width+src_x-dest_x; \
if (dest_y < src_y) { \
for(j = dest_y*client->width; j < (dest_y+h)*client->width; j += client->width) { \
if (dest_x < src_x) { \
for(i = dest_x; i < dest_x+w; i++) { \
((uint##BPP##_t*)client->frameBuffer)[j+i]=_buffer[j+i]; \
} \
} else { \
for(i = dest_x+w-1; i >= dest_x; i--) { \
((uint##BPP##_t*)client->frameBuffer)[j+i]=_buffer[j+i]; \
} \
} \
} \
} else { \
for(j = (dest_y+h-1)*client->width; j >= dest_y*client->width; j-=client->width) { \
if (dest_x < src_x) { \
for(i = dest_x; i < dest_x+w; i++) { \
((uint##BPP##_t*)client->frameBuffer)[j+i]=_buffer[j+i]; \
} \
} else { \
for(i = dest_x+w-1; i >= dest_x; i--) { \
((uint##BPP##_t*)client->frameBuffer)[j+i]=_buffer[j+i]; \
} \
} \
} \
} \
}
switch(client->format.bitsPerPixel) {
case 8: COPY_RECT_FROM_RECT(8); break;
case 16: COPY_RECT_FROM_RECT(16); break;
case 32: COPY_RECT_FROM_RECT(32); break;
default:
rfbClientLog("Unsupported bitsPerPixel: %d\n",client->format.bitsPerPixel);
}
}
void vnc_reflect_got_copyrect(rfbClient *cl, int src_x, int src_y, int w, int h, int dest_x, int dest_y) {
sraRegionPtr reg;
int dx, dy, rc = -1;
static int last_dx = 0, last_dy = 0;
if (cl) {}
if (unixpw_in_progress) {
return;
}
if (! all_clients_initialized()) {
rfbLog("vnc_reflect_got_copyrect: no send: uninitialized clients\n");
return; /* some clients initializing, cannot send */
}
dx = dest_x - src_x;
dy = dest_y - src_y;
if (dx != last_dx || dy != last_dy) {
rc = fb_push_wait(0.05, FB_COPY|FB_MOD);
}
if (1) fprintf(stderr, "vnc_reflect_got_copyrect: %03dx%03d+%03d+%03d %3d %3d rc=%d\n", dest_x, dest_y, w, h, dx, dy, rc);
reg = sraRgnCreateRect(dest_x, dest_y, dest_x + w, dest_y + h);
do_copyregion(reg, dx, dy, 0);
sraRgnDestroy(reg);
last_dx = dx;
last_dy = dy;
from_libvncclient_CopyRectangleFromRectangle(cl, src_x, src_y, w, h, dest_x, dest_y);
}
rfbBool vnc_reflect_resize(rfbClient *cl) {
static int first = 1;
if(cl->frameBuffer) {
free(cl->frameBuffer);
}
cl->frameBuffer= malloc(cl->width * cl->height * cl->format.bitsPerPixel/8);
if (!first) {
do_new_fb(1);
}
first = 0;
return cl->frameBuffer ? TRUE : FALSE;
}
char *vnc_reflect_guess(char *str, char **raw_fb_addr) {
static int first = 1;
char *hp = str + strlen("vnc:");
char *at = NULL;
int argc = 0, i;
char *argv[16];
char str2[256];
char *str0 = strdup(str);
if (client == NULL) {
client = rfbGetClient(8, 3, 4);
}
rfbLog("rawfb: %s\n", str);
at = strchr(hp, '@');
if (at) {
*at = '\0';
at++;
}
client->appData.useRemoteCursor = TRUE;
client->Bell = vnc_reflect_bell;
client->GotXCutText = vnc_reflect_recv_cuttext;
client->GotCopyRect = vnc_reflect_got_copyrect;
client->GotCursorShape = vnc_reflect_got_cursorshape;
client->MallocFrameBuffer = vnc_reflect_resize;
client->canHandleNewFBSize = TRUE;
client->GotFrameBufferUpdate = vnc_reflect_got_update;
if (first) {
argv[argc++] = "x11vnc_rawfb_vnc";
if (strstr(hp, "listen") == hp) {
char *q = strchr(hp, ':');
argv[argc++] = strdup("-listen");
if (q) {
client->listenPort = atoi(q+1);
} else {
client->listenPort = LISTEN_PORT_OFFSET;
}
} else {
argv[argc++] = strdup(hp);
}
if (! rfbInitClient(client, &argc, argv)) {
rfbLog("vnc_reflector failed for: %s\n", str0);
clean_up_exit(1);
}
}
if (at) {
sprintf(str2, "map:/dev/null@%s", at);
} else {
unsigned long red_mask, green_mask, blue_mask;
red_mask = (client->format.redMax << client->format.redShift);
green_mask = (client->format.greenMax << client->format.greenShift);
blue_mask = (client->format.blueMax << client->format.blueShift);
sprintf(str2, "map:/dev/null@%dx%dx%d:0x%lx/0x%lx/0x%lx",
client->width, client->height, client->format.bitsPerPixel,
red_mask, green_mask, blue_mask);
}
*raw_fb_addr = (char *) client->frameBuffer;
free(str0);
if (first) {
setup_cursors_and_push();
for (i=0; i<10; i++) {
vnc_reflect_process_client();
}
}
first = 0;
return strdup(str2);
}
rfbBool vnc_reflect_send_pointer(int x, int y, int mask) {
int rc;
if (mask >= 0) {
got_user_input++;
got_pointer_input++;
last_pointer_time = time(NULL);
}
if (cursor_x != x || cursor_y != y) {
last_pointer_motion_time = dnow();
}
cursor_x = x;
cursor_y = y;
/* record the x, y position for the rfb screen as well. */
cursor_position(x, y);
/* change the cursor shape if necessary */
rc = set_cursor(x, y, get_which_cursor());
cursor_changes += rc;
return SendPointerEvent(client, x, y, mask);
}
rfbBool vnc_reflect_send_key(uint32_t key, rfbBool down) {
return SendKeyEvent(client, key, down);
}
rfbBool vnc_reflect_send_cuttext(char *str, int len) {
return SendClientCutText(client, str, len);
}
void vnc_reflect_process_client(void) {
int num;
if (client == NULL) {
return;
}
num = WaitForMessage(client, 1000);
if (num > 0) {
if (!HandleRFBServerMessage(client)) {
rfbLog("vnc_reflect_process_client: read failure to server\n");
shut_down = 1;
}
}
}
void linux_dev_fb_msg(char* q) {
if (strstr(q, "/dev/fb") && strstr(UT.sysname, "Linux")) {
rfbLog("\n");
rfbLog("On Linux you may need to load a kernel module to enable\n");
rfbLog("the framebuffer device /dev/fb*; e.g.:\n");
rfbLog(" vga=0x303 (and others) kernel boot parameter\n");
rfbLog(" modprobe uvesafb\n");
rfbLog(" modprobe radeonfb (card specific)\n");
rfbLog(" modprobe nvidiafb (card specific, others)\n");
rfbLog(" modprobe vesafb (?)\n");
rfbLog(" modprobe vga16fb\n");
rfbLog("\n");
rfbLog("You may also need root permission to open /dev/fb*\n");
rfbLog("and/or /dev/tty*.\n");
rfbLog("\n");
}
}
#define RAWFB_MMAP 1
#define RAWFB_FILE 2
#define RAWFB_SHM 3
XImage *initialize_raw_fb(int reset) {
char *str, *q;
int w, h, b, shmid = 0;
unsigned long rm = 0, gm = 0, bm = 0, tm;
static XImage ximage_struct; /* n.b.: not (XImage *) */
static XImage ximage_struct_snap;
int closedpy = 1, i, m, db = 0;
int do_macosx = 0;
int do_reflect = 0;
char *unlink_me = NULL;
static char *last_file = NULL;
static int last_mode = 0;
if (reset && last_mode) {
int fd;
if (last_mode != RAWFB_MMAP && last_mode != RAWFB_FILE) {
return NULL;
}
if (last_mode == RAWFB_MMAP) {
munmap(raw_fb_addr, raw_fb_mmap);
}
if (raw_fb_fd >= 0) {
close(raw_fb_fd);
}
raw_fb_fd = -1;
if (db) fprintf(stderr, "initialize_raw_fb reset\n");
fd = -1;
if (rawfb_dev_video) {
fd = open(last_file, O_RDWR);
}
if (fd < 0) {
fd = open(last_file, O_RDONLY);
}
if (fd < 0) {
rfbLogEnable(1);
rfbLog("failed to rawfb file: %s\n", last_file);
rfbLogPerror("open");
clean_up_exit(1);
}
raw_fb_fd = fd;
if (last_mode == RAWFB_MMAP) {
raw_fb_addr = mmap(0, raw_fb_mmap, PROT_READ,
MAP_SHARED, fd, 0);
if (raw_fb_addr == MAP_FAILED || raw_fb_addr == NULL) {
rfbLogEnable(1);
rfbLog("failed to mmap file: %s\n", last_file);
rfbLog(" raw_fb_addr: %p\n", raw_fb_addr);
rfbLogPerror("mmap");
clean_up_exit(1);
}
}
return NULL;
}
#ifdef MACOSX
if (raw_fb_addr != NULL && macosx_console && raw_fb_addr == macosx_get_fb_addr()) {
raw_fb_addr = NULL;
}
#endif
if (raw_fb_addr || raw_fb_seek) {
if (raw_fb_shm) {
shmdt(raw_fb_addr);
#if LIBVNCSERVER_HAVE_MMAP
} else if (raw_fb_mmap) {
munmap(raw_fb_addr, raw_fb_mmap);
if (raw_fb_fd >= 0) {
close(raw_fb_fd);
}
raw_fb_fd = -1;
#endif
} else if (raw_fb_seek) {
if (raw_fb_fd >= 0) {
close(raw_fb_fd);
}
raw_fb_fd = -1;
}
raw_fb_addr = NULL;
raw_fb_mmap = 0;
raw_fb_seek = 0;
}
if (! raw_fb_str) {
return NULL;
}
/* testing aliases */
if (!strcasecmp(raw_fb_str, "NULL") || !strcasecmp(raw_fb_str, "ZERO")
|| !strcasecmp(raw_fb_str, "NONE")) {
raw_fb_str = strdup("map:/dev/zero@640x480x32");
} else if (!strcasecmp(raw_fb_str, "NULLBIG") || !strcasecmp(raw_fb_str, "NONEBIG")) {
raw_fb_str = strdup("map:/dev/zero@1024x768x32");
}
if (!strcasecmp(raw_fb_str, "RAND")) {
raw_fb_str = strdup("file:/dev/urandom@128x128x16");
} else if (!strcasecmp(raw_fb_str, "RANDBIG")) {
raw_fb_str = strdup("file:/dev/urandom@640x480x16");
} else if (!strcasecmp(raw_fb_str, "RANDHUGE")) {
raw_fb_str = strdup("file:/dev/urandom@1024x768x16");
}
if (strstr(raw_fb_str, "solid=") == raw_fb_str) {
char *n = raw_fb_str + strlen("solid=");
char tmp[] = "/tmp/solid.XXXXXX";
char str[100];
unsigned int vals[1024], val;
int x, y, fd, w = 1024, h = 768;
if (strstr(n, "0x")) {
if (sscanf(n, "0x%x", &val) != 1) {
val = 0;
}
}
if (val == 0) {
val = get_pixel(n);
}
if (val == 0) {
val = 0xFF00FF;
}
fd = mkstemp(tmp);
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
vals[x] = val;
}
write(fd, (char *)vals, 4 * w);
}
close(fd);
fd = open(tmp, O_WRONLY);
unlink_me = strdup(tmp);
sprintf(str, "map:%s@%dx%dx32", tmp, w, h);
raw_fb_str = strdup(str);
} else if (strstr(raw_fb_str, "swirl") == raw_fb_str) {
char tmp[] = "/tmp/solid.XXXXXX";
char str[100];
unsigned int val[1024];
unsigned int c1, c2, c3, c4;
int x, y, fd, w = 1024, h = 768;
fd = mkstemp(tmp);
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
c1 = 0;
c2 = ((x+y)*128)/(w+h);
c3 = (x*128)/w;
c4 = (y*256)/h;
val[x] = (c1 << 24) | (c2 << 16) | (c3 << 8) | (c4 << 0);
}
write(fd, (char *)val, 4 * w);
}
close(fd);
fd = open(tmp, O_WRONLY);
unlink_me = strdup(tmp);
sprintf(str, "map:%s@%dx%dx32", tmp, w, h);
raw_fb_str = strdup(str);
}
if ( (q = strstr(raw_fb_str, "setup:")) == raw_fb_str) {
FILE *pipe;
char line[1024], *t;
set_child_info();
q += strlen("setup:");
/* rawfb-setup */
if (no_external_cmds || !cmd_ok("rawfb-setup")) {
rfbLogEnable(1);
rfbLog("cannot run external commands in -nocmds "
"mode:\n");
rfbLog(" \"%s\"\n", q);
rfbLog(" exiting.\n");
clean_up_exit(1);
}
rfbLog("running command to setup rawfb: %s\n", q);
close_exec_fds();
pipe = popen(q, "r");
if (! pipe) {
rfbLogEnable(1);
rfbLog("popen of setup command failed.\n");
rfbLogPerror("popen");
clean_up_exit(1);
}
line[0] = '\0';
if (fgets(line, 1024, pipe) == NULL) {
rfbLogEnable(1);
rfbLog("read of setup command failed.\n");
clean_up_exit(1);
}
pclose(pipe);
str = strdup(line);
t = str;
while (*t != '\0') {
if (*t == '\n') {
*t = '\0';
}
t++;
}
rfbLog("setup command returned: %s\n", str);
} else {
str = strdup(raw_fb_str);
}
if (str[0] == '+') {
char *t = strdup(str+1);
free(str);
str = t;
closedpy = 0;
if (! window) {
window = rootwin;
}
}
raw_fb_shm = 0;
raw_fb_mmap = 0;
raw_fb_seek = 0;
raw_fb_fd = -1;
raw_fb_addr = NULL;
raw_fb_offset = 0;
raw_fb_bytes_per_line = 0;
rawfb_vnc_reflect = 0;
last_mode = 0;
if (last_file) {
free(last_file);
last_file = NULL;
}
if (strstr(str, "Video") == str) {
if (pipeinput_str != NULL) {
free(pipeinput_str);
}
pipeinput_str = strdup("VID");
initialize_pipeinput();
str[0] = 'v';
}
if (strstr(str, "video") == str || strstr(str, "/dev/video") == str) {
char *str2 = v4l_guess(str, &raw_fb_fd);
if (str2 == NULL) {
rfbLog("v4l_guess failed for: %s\n", str);
clean_up_exit(1);
}
str = str2;
rfbLog("v4l_guess returned: %s\n", str);
rawfb_dev_video = 1;
} else if (strstr(str, "dev/video")) {
rawfb_dev_video = 1;
} else if (strstr(str, "console") == str || strstr(str, "fb") == str ||
strstr(str, "/dev/fb") == str || strstr(str, "vt") == str) {
char *str2 = console_guess(str, &raw_fb_fd);
if (str2 == NULL) {
rfbLog("console_guess failed for: %s\n", str);
clean_up_exit(1);
}
str = str2;
rfbLog("console_guess returned: %s\n", str);
} else if (strstr(str, "vnc:") == str) {
char *str2 = vnc_reflect_guess(str, &raw_fb_addr);
rawfb_vnc_reflect = 1;
do_reflect = 1;
str = str2;
rfbLog("vnc_reflector set rawfb str to: %s\n", str);
if (pipeinput_str == NULL) {
pipeinput_str = strdup("VNC");
}
initialize_pipeinput();
}
if (closedpy && !view_only && got_noviewonly) {
rfbLog("not closing X DISPLAY under -noviewonly option.\n");
closedpy = 0;
if (! window) {
window = rootwin;
}
}
if (! raw_fb_orig_dpy && dpy) {
raw_fb_orig_dpy = strdup(DisplayString(dpy));
}
#ifndef BOLDLY_CLOSE_DISPLAY
#define BOLDLY_CLOSE_DISPLAY 1
#endif
#if BOLDLY_CLOSE_DISPLAY
if (closedpy) {
if (dpy) {
rfbLog("closing X DISPLAY: %s in rawfb mode.\n",
DisplayString(dpy));
XCloseDisplay_wr(dpy); /* yow! */
}
dpy = NULL;
}
#endif
/*
* -rawfb shm:163938442@640x480x32:ff/ff00/ff0000+3000
* -rawfb map:/path/to/file@640x480x32:ff/ff00/ff0000
* -rawfb file:/path/to/file@640x480x32:ff/ff00/ff0000
*/
if (raw_fb_full_str) {
free(raw_fb_full_str);
}
raw_fb_full_str = strdup(str);
/* +O offset */
if ((q = strrchr(str, '+')) != NULL) {
if (sscanf(q, "+%d", &raw_fb_offset) == 1) {
*q = '\0';
} else {
raw_fb_offset = 0;
}
}
/* :R/G/B masks */
if ((q = strrchr(str, ':')) != NULL) {
if (sscanf(q, ":%lx/%lx/%lx", &rm, &gm, &bm) == 3) {
*q = '\0';
} else if (sscanf(q, ":0x%lx/0x%lx/0x%lx", &rm, &gm, &bm)== 3) {
*q = '\0';
} else if (sscanf(q, ":%lu/%lu/%lu", &rm, &gm, &bm) == 3) {
*q = '\0';
} else {
rm = 0;
gm = 0;
bm = 0;
}
}
if ((q = strrchr(str, '@')) == NULL) {
rfbLogEnable(1);
rfbLog("invalid rawfb str: %s\n", str);
clean_up_exit(1);
}
if (strrchr(q, '-')) {
char *q2 = strrchr(q, '-');
raw_fb_bytes_per_line = atoi(q2+1);
*q2 = '\0';
}
/* @WxHxB */
if (sscanf(q, "@%dx%dx%d", &w, &h, &b) != 3) {
rfbLogEnable(1);
rfbLog("invalid rawfb str: %s\n", str);
clean_up_exit(1);
}
*q = '\0';
if (rm == 0 && gm == 0 && bm == 0) {
/* guess masks... */
if (b == 24 || b == 32) {
rm = 0xff0000;
gm = 0x00ff00;
bm = 0x0000ff;
} else if (b == 16) {
rm = 0xf800;
gm = 0x07e0;
bm = 0x001f;
} else if (b == 8) {
rm = 0x07;
gm = 0x38;
bm = 0xc0;
}
}
/* we can fake -flipbyteorder to some degree... */
if (flip_byte_order) {
if (b == 24 || b == 32) {
tm = rm;
rm = bm;
bm = tm;
} else if (b == 16) {
unsigned short s1, s2;
s1 = (unsigned short) rm;
s2 = ((0xff & s1) << 8) | ((0xff00 & s1) >> 8);
rm = (unsigned long) s2;
s1 = (unsigned short) gm;
s2 = ((0xff & s1) << 8) | ((0xff00 & s1) >> 8);
gm = (unsigned long) s2;
s1 = (unsigned short) bm;
s2 = ((0xff & s1) << 8) | ((0xff00 & s1) >> 8);
bm = (unsigned long) s2;
}
}
/* native fb stuff for bpp < 8 only */
raw_fb_native_bpp = b;
raw_fb_native_red_mask = rm;
raw_fb_native_green_mask = gm;
raw_fb_native_blue_mask = bm;
raw_fb_native_red_shift = 100;
raw_fb_native_green_shift = 100;
raw_fb_native_blue_shift = 100;
raw_fb_native_red_max = 1;
raw_fb_native_green_max = 1;
raw_fb_native_blue_max = 1;
m = 1;
for (i=0; i<32; i++) {
if (raw_fb_native_red_mask & m) {
if (raw_fb_native_red_shift == 100) {
raw_fb_native_red_shift = i;
}
raw_fb_native_red_max *= 2;
}
if (raw_fb_native_green_mask & m) {
if (raw_fb_native_green_shift == 100) {
raw_fb_native_green_shift = i;
}
raw_fb_native_green_max *= 2;
}
if (raw_fb_native_blue_mask & m) {
if (raw_fb_native_blue_shift == 100) {
raw_fb_native_blue_shift = i;
}
raw_fb_native_blue_max *= 2;
}
m = m << 1;
}
raw_fb_native_red_max -= 1;
raw_fb_native_green_max -= 1;
raw_fb_native_blue_max -= 1;
if (b < 8) {
/* e.g. VGA16 */
rfbLog("raw_fb_native_bpp: %d 0x%02lx 0x%02lx 0x%02lx %d/%d/%d %d/%d/%d\n", raw_fb_native_bpp,
raw_fb_native_red_mask, raw_fb_native_green_mask, raw_fb_native_blue_mask,
raw_fb_native_red_max, raw_fb_native_green_max, raw_fb_native_blue_max,
raw_fb_native_red_shift, raw_fb_native_green_shift, raw_fb_native_blue_shift);
raw_fb_expand_bytes = 1;
b = 8;
rm = 0x07;
gm = 0x38;
bm = 0xc0;
}
/* end of stuff for bpp < 8 */
dpy_x = wdpy_x = w;
dpy_y = wdpy_y = h;
off_x = 0;
off_y = 0;
if (rawfb_dev_video) {
if (b == 24) {
rfbLog("enabling -24to32 for 24bpp video\n");
xform24to32 = 1;
} else {
if (xform24to32) {
rfbLog("disabling -24to32 for 24bpp video\n");
}
xform24to32 = 0;
}
}
if (xform24to32) {
if (b != 24) {
rfbLog("warning: -24to32 mode and bpp=%d\n", b);
}
b = 32;
}
if (strstr(str, "snap:") == str) {
use_snapfb = 1;
str[0] = 'f'; str[1] = 'i'; str[2] = 'l'; str[3] = 'e';
}
if (strstr(str, "shm:") != str && strstr(str, "mmap:") != str &&
strstr(str, "map:") != str && strstr(str, "file:") != str) {
/* hmmm, not following directions, see if map: applies */
struct stat sbuf;
if (stat(str, &sbuf) == 0) {
char *new;
int len = strlen("map:") + strlen(str) + 1;
rfbLog("no type prefix: %s\n", raw_fb_str);
rfbLog(" but file exists, so assuming: map:%s\n",
raw_fb_str);
new = (char *) malloc(len);
strcpy(new, "map:");
strcat(new, str);
free(str);
str = new;
}
}
if (sscanf(str, "shm:%d", &shmid) == 1) {
/* shm:N */
#if LIBVNCSERVER_HAVE_XSHM || LIBVNCSERVER_HAVE_SHMAT
raw_fb_addr = (char *) shmat(shmid, 0, SHM_RDONLY);
if (! raw_fb_addr) {
rfbLogEnable(1);
rfbLog("failed to attach to shm: %d, %s\n", shmid, str);
rfbLogPerror("shmat");
clean_up_exit(1);
}
raw_fb_shm = 1;
rfbLog("rawfb: shm: %d W: %d H: %d B: %d addr: %p\n",
shmid, w, h, b, raw_fb_addr);
last_mode = RAWFB_SHM;
#else
rfbLogEnable(1);
rfbLog("x11vnc was compiled without shm support.\n");
rfbLogPerror("shmat");
clean_up_exit(1);
#endif
} else if (strstr(str, "map:") == str || strstr(str, "mmap:") == str
|| strstr(str, "file:") == str) {
/* map:/path/... or file:/path */
int fd, do_mmap = 1, size;
struct stat sbuf;
if (*str == 'f') {
do_mmap = 0;
}
q = strchr(str, ':');
q++;
macosx_console = 0;
if (strstr(q, "macosx:") == q) {
/* mmap:macosx:/dev/null@... */
q += strlen("macosx:");
do_macosx = 1;
do_mmap = 0;
macosx_console = 1;
}
last_file = strdup(q);
fd = raw_fb_fd;
if (fd < 0 && rawfb_dev_video) {
fd = open(q, O_RDWR);
}
if (fd < 0) {
fd = open(q, O_RDONLY);
}
if (fd < 0) {
rfbLogEnable(1);
rfbLog("failed to open file: %s, %s\n", q, str);
rfbLogPerror("open");
linux_dev_fb_msg(q);
clean_up_exit(1);
}
raw_fb_fd = fd;
if (raw_fb_native_bpp < 8) {
size = w*h*raw_fb_native_bpp/8 + raw_fb_offset;
} else if (xform24to32) {
size = w*h*24/8 + raw_fb_offset;
} else {
size = w*h*b/8 + raw_fb_offset;
}
if (fstat(fd, &sbuf) == 0) {
if (S_ISREG(sbuf.st_mode)) {
if (0) size = sbuf.st_size;
} else {
rfbLog("raw fb is non-regular file: %s\n", q);
}
}
if (do_macosx) {
raw_fb_addr = macosx_get_fb_addr();
raw_fb_mmap = size;
rfbLog("rawfb: macosx fb: %s\n", q);
rfbLog(" w: %d h: %d b: %d addr: %p sz: %d\n", w, h,
b, raw_fb_addr, size);
last_mode = 0;
} else if (do_reflect) {
raw_fb_mmap = size;
rfbLog("rawfb: vnc fb: %s\n", q);
rfbLog(" w: %d h: %d b: %d addr: %p sz: %d\n", w, h,
b, raw_fb_addr, size);
last_mode = 0;
} else if (do_mmap) {
#if LIBVNCSERVER_HAVE_MMAP
raw_fb_addr = mmap(0, size, PROT_READ, MAP_SHARED,
fd, 0);
if (raw_fb_addr == MAP_FAILED || raw_fb_addr == NULL) {
rfbLogEnable(1);
rfbLog("failed to mmap file: %s, %s\n", q, str);
rfbLog(" raw_fb_addr: %p\n", raw_fb_addr);
rfbLogPerror("mmap");
raw_fb_addr = NULL;
rfbLog("mmap(2) failed, trying slower lseek(2)\n");
raw_fb_seek = size;
last_mode = RAWFB_FILE;
} else {
raw_fb_mmap = size;
rfbLog("rawfb: mmap file: %s\n", q);
rfbLog(" w: %d h: %d b: %d addr: %p sz: %d\n", w, h,
b, raw_fb_addr, size);
last_mode = RAWFB_MMAP;
}
#else
rfbLog("mmap(2) not supported on system, using"
" slower lseek(2)\n");
raw_fb_seek = size;
last_mode = RAWFB_FILE;
#endif
} else {
raw_fb_seek = size;
last_mode = RAWFB_FILE;
rfbLog("rawfb: seek file: %s\n", q);
rfbLog(" W: %d H: %d B: %d sz: %d\n", w, h, b, size);
}
} else {
rfbLogEnable(1);
rfbLog("invalid rawfb str: %s\n", str);
clean_up_exit(1);
}
if (unlink_me) {
unlink(unlink_me);
}
if (! raw_fb_image) {
raw_fb_image = &ximage_struct;
}
initialize_clipshift();
if (raw_fb_bytes_per_line == 0) {
raw_fb_bytes_per_line = dpy_x*b/8;
/*
* Put cases here were we can determine that
* raw_bytes_per_line != dpy_x*b/8
*/
#ifdef MACOSX
if (do_macosx) {
raw_fb_bytes_per_line = macosxCG_CGDisplayBytesPerRow();
}
#endif
}
raw_fb_image->bytes_per_line = dpy_x * b/8;
raw_fb = (char *) malloc(dpy_y * dpy_x * b/8);
raw_fb_image->data = raw_fb;
raw_fb_image->format = ZPixmap;
raw_fb_image->width = dpy_x;
raw_fb_image->height = dpy_y;
raw_fb_image->bits_per_pixel = b;
raw_fb_image->bitmap_unit = -1;
if (use_snapfb && (raw_fb_seek || raw_fb_mmap)) {
int b_use = b;
if (snap_fb) {
free(snap_fb);
}
if (b_use == 32 && xform24to32) {
/*
* The actual framebuffer (e.g. mapped addr) and
* snap fb must be the same bpp. E.g. both 24bpp.
* Reading FROM snap to utility image will be
* transformed 24->32 in copy_raw_fb_24_to_32.
*
* addr -> snap -> (scanline, fullscreen, ...)
*/
b_use = 24;
raw_fb_bytes_per_line = dpy_x * b_use/8;
}
snap_fb = (char *) malloc(dpy_y * dpy_x * b_use/8);
snap = &ximage_struct_snap;
snap->data = snap_fb;
snap->format = ZPixmap;
snap->width = dpy_x;
snap->height = dpy_y;
snap->bits_per_pixel = b_use;
snap->bytes_per_line = dpy_x * b_use/8;
snap->bitmap_unit = -1;
}
raw_fb_image->red_mask = rm;
raw_fb_image->green_mask = gm;
raw_fb_image->blue_mask = bm;
raw_fb_image->depth = 0;
m = 1;
for (i=0; i<32; i++) {
if (rm & m) {
raw_fb_image->depth++;
}
if (gm & m) {
raw_fb_image->depth++;
}
if (bm & m) {
raw_fb_image->depth++;
}
m = m << 1;
}
if (raw_fb_native_bpp < 8) {
raw_fb_image->depth = raw_fb_expand_bytes * 8;
}
if (! raw_fb_image->depth) {
raw_fb_image->depth = (b == 32) ? 24 : b;
}
depth = raw_fb_image->depth;
if (raw_fb_image->depth == 15) {
/* unresolved bug with RGB555... */
depth++;
}
if (clipshift || raw_fb_native_bpp < 8) {
memset(raw_fb, 0xff, dpy_y * raw_fb_image->bytes_per_line);
} else if (raw_fb_addr && ! xform24to32) {
memcpy(raw_fb, raw_fb_addr + raw_fb_offset, dpy_y * raw_fb_image->bytes_per_line);
} else {
memset(raw_fb, 0xff, dpy_y * raw_fb_image->bytes_per_line);
}
if (verbose) {
rfbLog("\n");
rfbLog("rawfb: raw_fb %p\n", raw_fb);
rfbLog(" format %d\n", raw_fb_image->format);
rfbLog(" width %d\n", raw_fb_image->width);
rfbLog(" height %d\n", raw_fb_image->height);
rfbLog(" bpp %d\n", raw_fb_image->bits_per_pixel);
rfbLog(" depth %d\n", raw_fb_image->depth);
rfbLog(" bpl %d\n", raw_fb_image->bytes_per_line);
if (use_snapfb && snap_fb) {
rfbLog(" snap_fb %p\n", snap_fb);
}
}
free(str);
return raw_fb_image;
}
static void initialize_clipshift(void) {
clipshift = 0;
cdpy_x = cdpy_y = coff_x = coff_y = 0;
if (clip_str) {
int w, h, x, y, bad = 0;
if (parse_geom(clip_str, &w, &h, &x, &y, wdpy_x, wdpy_y)) {
if (x < 0) {
x = 0;
}
if (y < 0) {
y = 0;
}
if (x + w > wdpy_x) {
w = wdpy_x - x;
}
if (y + h > wdpy_y) {
h = wdpy_y - y;
}
if (w <= 0 || h <= 0) {
bad = 1;
}
} else {
bad = 1;
}
if (bad) {
rfbLog("skipping invalid -clip WxH+X+Y: %s\n",
clip_str);
} else {
/* OK, change geom behind everyone's back... */
cdpy_x = w;
cdpy_y = h;
coff_x = x;
coff_y = y;
clipshift = 1;
dpy_x = cdpy_x;
dpy_y = cdpy_y;
}
}
}
static int wait_until_mapped(Window win) {
#if NO_X11
if (!win) {}
return 0;
#else
int ms = 50, waittime = 30;
time_t start = time(NULL);
XWindowAttributes attr;
while (1) {
if (! valid_window(win, NULL, 0)) {
if (time(NULL) > start + waittime) {
break;
}
usleep(ms * 1000);
continue;
}
if (dpy && ! XGetWindowAttributes(dpy, win, &attr)) {
return 0;
}
if (attr.map_state == IsViewable) {
return 1;
}
usleep(ms * 1000);
}
return 0;
#endif /* NO_X11 */
}
/*
* initialize a fb for the X display
*/
XImage *initialize_xdisplay_fb(void) {
#if NO_X11
if (raw_fb_str) {
return initialize_raw_fb(0);
}
return NULL;
#else
XImage *fb;
char *vis_str = visual_str;
int try = 0, subwin_tries = 3;
XErrorHandler old_handler = NULL;
int subwin_bs;
if (raw_fb_str) {
return initialize_raw_fb(0);
}
X_LOCK;
if (subwin) {
if (subwin_wait_mapped) {
wait_until_mapped(subwin);
}
if (!valid_window((Window) subwin, NULL, 0)) {
rfbLogEnable(1);
rfbLog("invalid sub-window: 0x%lx\n", subwin);
X_UNLOCK;
clean_up_exit(1);
}
}
if (overlay) {
/*
* ideally we'd like to not have to cook up the
* visual variables but rather let it all come out
* of XReadScreen(), however there is no way to get
* a default visual out of it, so we pretend -visual
* TrueColor:NN was supplied with NN usually 24.
*/
char str[32];
Window twin = subwin ? subwin : rootwin;
XImage *xi;
xi = xreadscreen(dpy, twin, 0, 0, 8, 8, False);
sprintf(str, "TrueColor:%d", xi->depth);
if (xi->depth != 24 && ! quiet) {
rfbLog("warning: overlay image has depth %d "
"instead of 24.\n", xi->depth);
}
XDestroyImage(xi);
if (visual_str != NULL && ! quiet) {
rfbLog("warning: replacing '-visual %s' by '%s' "
"for use with -overlay\n", visual_str, str);
}
vis_str = strdup(str);
}
if (xform24to32) {
if (DefaultDepth(dpy, scr) == 24) {
vis_str = strdup("TrueColor:32");
rfbLog("initialize_xdisplay_fb: vis_str set to: %s\n",
vis_str);
visual_id = (VisualID) 0;
visual_depth = 0;
set_visual_str_to_something = 1;
}
} else if (DefaultDepth(dpy, scr) < 8) {
/* check very low bpp case, e.g. mono or vga16 */
Screen *s = DefaultScreenOfDisplay(dpy);
XImage *xi = XGetImage_wr(dpy, DefaultRootWindow(dpy), 0, 0, 2, 2, AllPlanes,
ZPixmap);
if (xi && xi->bits_per_pixel < 8) {
int lowbpp = xi->bits_per_pixel;
if (!vis_str) {
char tmp[32];
sprintf(tmp, "0x%x:8", (int) s->root_visual->visualid);
vis_str = strdup(tmp);
rfbLog("initialize_xdisplay_fb: low bpp[%d], vis_str "
"set to: %s\n", lowbpp, vis_str);
}
if (using_shm) {
using_shm = 0;
rfbLog("initialize_xdisplay_fb: low bpp[%d], "
"disabling shm\n", lowbpp);
}
visual_id = (VisualID) 0;
visual_depth = 0;
set_visual_str_to_something = 1;
}
if (xi) {
XDestroyImage(xi);
}
}
if (vis_str != NULL) {
set_visual(vis_str);
if (vis_str != visual_str) {
free(vis_str);
}
}
if (0) fprintf(stderr, "vis_str %s\n", vis_str ? vis_str : "notset");
/* set up parameters for subwin or non-subwin cases: */
if (! subwin) {
/* full screen */
window = rootwin;
dpy_x = wdpy_x = DisplayWidth(dpy, scr);
dpy_y = wdpy_y = DisplayHeight(dpy, scr);
off_x = 0;
off_y = 0;
/* this may be overridden via visual_id below */
default_visual = DefaultVisual(dpy, scr);
} else {
/* single window */
XWindowAttributes attr;
window = (Window) subwin;
if (! XGetWindowAttributes(dpy, window, &attr)) {
rfbLogEnable(1);
rfbLog("invalid window: 0x%lx\n", window);
X_UNLOCK;
clean_up_exit(1);
}
dpy_x = wdpy_x = attr.width;
dpy_y = wdpy_y = attr.height;
subwin_bs = attr.backing_store;
/* this may be overridden via visual_id below */
default_visual = attr.visual;
X_UNLOCK;
set_offset();
X_LOCK;
}
initialize_clipshift();
/* initialize depth to reasonable value, visual_id may override */
depth = DefaultDepth(dpy, scr);
if (0) fprintf(stderr, "DefaultDepth: %d visial_id: %d\n", depth, (int) visual_id);
if (visual_id) {
int n;
XVisualInfo vinfo_tmpl, *vinfo;
/*
* we are in here from -visual or -overlay options
* visual_id and visual_depth were set in set_visual().
*/
vinfo_tmpl.visualid = visual_id;
vinfo = XGetVisualInfo(dpy, VisualIDMask, &vinfo_tmpl, &n);
if (vinfo == NULL || n == 0) {
rfbLogEnable(1);
rfbLog("could not match visual_id: 0x%x\n",
(int) visual_id);
X_UNLOCK;
clean_up_exit(1);
}
default_visual = vinfo->visual;
depth = vinfo->depth;
if (visual_depth) {
/* force it from -visual MooColor:NN */
depth = visual_depth;
}
if (! quiet) {
fprintf(stderr, " initialize_xdisplay_fb()\n");
fprintf(stderr, " Visual*: %p\n",
(void *) vinfo->visual);
fprintf(stderr, " visualid: 0x%x\n",
(int) vinfo->visualid);
fprintf(stderr, " screen: %d\n", vinfo->screen);
fprintf(stderr, " depth: %d\n", vinfo->depth);
fprintf(stderr, " class: %d\n", vinfo->class);
fprintf(stderr, " red_mask: 0x%08lx %s\n",
vinfo->red_mask, bitprint(vinfo->red_mask, 32));
fprintf(stderr, " green_mask: 0x%08lx %s\n",
vinfo->green_mask, bitprint(vinfo->green_mask, 32));
fprintf(stderr, " blue_mask: 0x%08lx %s\n",
vinfo->blue_mask, bitprint(vinfo->blue_mask, 32));
fprintf(stderr, " cmap_size: %d\n",
vinfo->colormap_size);
fprintf(stderr, " bits b/rgb: %d\n",
vinfo->bits_per_rgb);
fprintf(stderr, "\n");
}
XFree_wr(vinfo);
}
if (! quiet) {
rfbLog("Default visual ID: 0x%x\n",
(int) XVisualIDFromVisual(default_visual));
}
again:
if (subwin) {
int shift = 0;
int subwin_x, subwin_y;
int disp_x = DisplayWidth(dpy, scr);
int disp_y = DisplayHeight(dpy, scr);
Window twin;
/* subwins can be a dicey if they are changing size... */
trapped_xerror = 0;
old_handler = XSetErrorHandler(trap_xerror);
XTranslateCoordinates(dpy, window, rootwin, 0, 0, &subwin_x,
&subwin_y, &twin);
if (subwin_x + wdpy_x > disp_x) {
shift = 1;
subwin_x = disp_x - wdpy_x - 3;
}
if (subwin_y + wdpy_y > disp_y) {
shift = 1;
subwin_y = disp_y - wdpy_y - 3;
}
if (subwin_x < 0) {
shift = 1;
subwin_x = 1;
}
if (subwin_y < 0) {
shift = 1;
subwin_y = 1;
}
if (shift) {
XMoveWindow(dpy, window, subwin_x, subwin_y);
}
XMapRaised(dpy, window);
XRaiseWindow(dpy, window);
XFlush_wr(dpy);
}
try++;
if (nofb) {
/*
* For -nofb we do not allocate the framebuffer, so we
* can save a few MB of memory.
*/
fb = XCreateImage_wr(dpy, default_visual, depth, ZPixmap,
0, NULL, dpy_x, dpy_y, BitmapPad(dpy), 0);
} else if (visual_id) {
/*
* we need to call XCreateImage to supply the visual
*/
fb = XCreateImage_wr(dpy, default_visual, depth, ZPixmap,
0, NULL, dpy_x, dpy_y, BitmapPad(dpy), 0);
fb->data = (char *) malloc(fb->bytes_per_line * fb->height);
} else {
fb = XGetImage_wr(dpy, window, 0, 0, dpy_x, dpy_y, AllPlanes,
ZPixmap);
if (! quiet) {
rfbLog("Read initial data from X display into"
" framebuffer.\n");
}
}
if (subwin) {
XSetErrorHandler(old_handler);
if (trapped_xerror) {
rfbLog("trapped GetImage at SUBWIN creation.\n");
if (try < subwin_tries) {
usleep(250 * 1000);
if (!get_window_size(window, &wdpy_x, &wdpy_y)) {
rfbLogEnable(1);
rfbLog("could not get size of subwin "
"0x%lx\n", subwin);
X_UNLOCK;
clean_up_exit(1);
}
goto again;
}
}
trapped_xerror = 0;
} else if (! fb && try == 1) {
/* try once more */
usleep(250 * 1000);
goto again;
}
if (use_snapfb) {
initialize_snap_fb();
}
X_UNLOCK;
if (fb->bits_per_pixel == 24 && ! quiet) {
rfbLog("warning: 24 bpp may have poor performance.\n");
}
return fb;
#endif /* NO_X11 */
}
void parse_scale_string(char *str, double *factor_x, double *factor_y, int *scaling, int *blend,
int *nomult4, int *pad, int *interpolate, int *numer, int *denom, int w_in, int h_in) {
int m, n;
char *p, *tstr;
double f, f2;
*factor_x = 1.0;
*factor_y = 1.0;
*scaling = 0;
*blend = 1;
*nomult4 = 0;
*pad = 0;
*interpolate = 0;
*numer = 0, *denom = 0;
if (str == NULL || str[0] == '\0') {
return;
}
tstr = strdup(str);
if ( (p = strchr(tstr, ':')) != NULL) {
/* options */
if (strstr(p+1, "nb") != NULL) {
*blend = 0;
}
if (strstr(p+1, "fb") != NULL) {
*blend = 2;
}
if (strstr(p+1, "n4") != NULL) {
*nomult4 = 1;
}
if (strstr(p+1, "in") != NULL) {
*interpolate = 1;
}
if (strstr(p+1, "pad") != NULL) {
*pad = 1;
}
if (strstr(p+1, "nocr") != NULL) {
/* global */
scaling_copyrect = 0;
} else if (strstr(p+1, "cr") != NULL) {
/* global */
scaling_copyrect = 1;
}
*p = '\0';
}
if (strchr(tstr, '.') != NULL) {
double test, diff, eps = 1.0e-7;
if (sscanf(tstr, "%lfx%lf", &f, &f2) == 2) {
*factor_x = (double) f;
*factor_y = (double) f2;
} else if (sscanf(tstr, "%lf", &f) != 1) {
rfbLogEnable(1);
rfbLog("invalid -scale arg: %s\n", tstr);
clean_up_exit(1);
} else {
*factor_x = (double) f;
*factor_y = (double) f;
}
/* look for common fractions from small ints: */
if (*factor_x == *factor_y) {
for (n=2; n<=10; n++) {
for (m=1; m<n; m++) {
test = ((double) m)/ n;
diff = *factor_x - test;
if (-eps < diff && diff < eps) {
*numer = m;
*denom = n;
break;
}
}
if (*denom) {
break;
}
}
if (*factor_x < 0.01) {
rfbLogEnable(1);
rfbLog("-scale factor too small: %f\n", *factor_x);
clean_up_exit(1);
}
}
} else if (sscanf(tstr, "%dx%d", &m, &n) == 2 && w_in > 0 && h_in > 0) {
*factor_x = ((double) m) / ((double) w_in);
*factor_y = ((double) n) / ((double) h_in);
} else {
if (sscanf(tstr, "%d/%d", &m, &n) != 2) {
if (sscanf(tstr, "%d", &m) != 1) {
rfbLogEnable(1);
rfbLog("invalid -scale arg: %s\n", tstr);
clean_up_exit(1);
} else {
/* e.g. -scale 1 or -scale 2 */
n = 1;
}
}
if (n <= 0 || m <=0) {
rfbLogEnable(1);
rfbLog("invalid -scale arg: %s\n", tstr);
clean_up_exit(1);
}
*factor_x = ((double) m)/ n;
*factor_y = ((double) m)/ n;
if (*factor_x < 0.01) {
rfbLogEnable(1);
rfbLog("-scale factor too small: %f\n", *factor_x);
clean_up_exit(1);
}
*numer = m;
*denom = n;
}
if (*factor_x == 1.0 && *factor_y == 1.0) {
if (! quiet) {
rfbLog("scaling disabled for factor %f %f\n", *factor_x, *factor_y);
}
} else {
*scaling = 1;
}
free(tstr);
}
int parse_rotate_string(char *str, int *mode) {
int m = ROTATE_NONE;
if (str == NULL || !strcmp(str, "") || !strcmp(str, "0")) {
m = ROTATE_NONE;
} else if (!strcmp(str, "x")) {
m = ROTATE_X;
} else if (!strcmp(str, "y")) {
m = ROTATE_Y;
} else if (!strcmp(str, "xy") || !strcmp(str, "yx") ||
!strcmp(str,"+180") || !strcmp(str,"-180") || !strcmp(str,"180")) {
m = ROTATE_XY;
} else if (!strcmp(str, "+90") || !strcmp(str, "90")) {
m = ROTATE_90;
} else if (!strcmp(str, "+90x") || !strcmp(str, "90x")) {
m = ROTATE_90X;
} else if (!strcmp(str, "+90y") || !strcmp(str, "90y")) {
m = ROTATE_90Y;
} else if (!strcmp(str, "-90") || !strcmp(str, "270") ||
!strcmp(str, "+270")) {
m = ROTATE_270;
} else {
rfbLog("invalid -rotate mode: %s\n", str);
}
if (mode) {
*mode = m;
}
return m;
}
int scale_round(int len, double fac) {
double eps = 0.000001;
len = (int) (len * fac + eps);
if (len < 1) {
len = 1;
}
return len;
}
static void setup_scaling(int *width_in, int *height_in) {
int width = *width_in;
int height = *height_in;
parse_scale_string(scale_str, &scale_fac_x, &scale_fac_y, &scaling, &scaling_blend,
&scaling_nomult4, &scaling_pad, &scaling_interpolate,
&scale_numer, &scale_denom, *width_in, *height_in);
if (scaling) {
width = scale_round(width, scale_fac_x);
height = scale_round(height, scale_fac_y);
if (scale_denom && scaling_pad) {
/* it is not clear this padding is useful anymore */
rfbLog("width %% denom: %d %% %d = %d\n", width,
scale_denom, width % scale_denom);
rfbLog("height %% denom: %d %% %d = %d\n", height,
scale_denom, height % scale_denom);
if (width % scale_denom != 0) {
int w = width;
w += scale_denom - (w % scale_denom);
if (!scaling_nomult4 && w % 4 != 0) {
/* need to make mult of 4 as well */
int c = 0;
while (w % 4 != 0 && c++ <= 5) {
w += scale_denom;
}
}
width = w;
rfbLog("padded width to: %d (mult of %d%s\n",
width, scale_denom, !scaling_nomult4 ?
" and 4)" : ")");
}
if (height % scale_denom != 0) {
height += scale_denom - (height % scale_denom);
rfbLog("padded height to: %d (mult of %d)\n",
height, scale_denom);
}
}
if (!scaling_nomult4 && width % 4 != 0 && width > 2) {
/* reset width to be multiple of 4 */
int width0 = width;
if ((width+1) % 4 == 0) {
width = width+1;
} else if ((width-1) % 4 == 0) {
width = width-1;
} else if ((width+2) % 4 == 0) {
width = width+2;
}
rfbLog("reset scaled width %d -> %d to be a multiple of"
" 4 (to\n", width0, width);
rfbLog("make vncviewers happy). use -scale m/n:n4 to "
"disable.\n");
}
scaled_x = width;
scaled_y = height;
*width_in = width;
*height_in = height;
}
}
static void setup_rotating(void) {
char *rs = rotating_str;
rotating_cursors = 1;
if (rs && strstr(rs, "nc:") == rs) {
rs += strlen("nc:");
rotating_cursors = 0;
}
rotating = parse_rotate_string(rs, NULL);
if (! rotating) {
rotating_cursors = 0;
}
if (rotating == ROTATE_90 || rotating == ROTATE_90X ||
rotating == ROTATE_90Y || rotating == ROTATE_270) {
rotating_same = 0;
} else {
rotating_same = 1;
}
}
static rfbBool set_xlate_wrapper(rfbClientPtr cl) {
static int first = 1;
if (first) {
first = 0;
} else if (ncache) {
int save = ncache_xrootpmap;
rfbLog("set_xlate_wrapper: clearing -ncache for new pixel format.\n");
ncache_xrootpmap = 0;
check_ncache(1, 0);
ncache_xrootpmap = save;
}
return rfbSetTranslateFunction(cl);
}
/*
* initialize the rfb framebuffer/screen
*/
void initialize_screen(int *argc, char **argv, XImage *fb) {
int have_masks = 0;
int width = fb->width;
int height = fb->height;
int create_screen = screen ? 0 : 1;
int bits_per_color;
int fb_bpp, fb_Bpl, fb_depth;
bpp = fb->bits_per_pixel;
fb_bpp = (int) fb->bits_per_pixel;
fb_Bpl = (int) fb->bytes_per_line;
fb_depth = (int) fb->depth;
rfbLog("initialize_screen: fb_depth/fb_bpp/fb_Bpl %d/%d/%d\n", fb_depth,
fb_bpp, fb_Bpl);
main_bytes_per_line = fb->bytes_per_line;
if (cmap8to24) {
if (raw_fb) {
if (!quiet) rfbLog("disabling -8to24 mode"
" in raw_fb mode.\n");
cmap8to24 = 0;
} else if (depth == 24) {
if (fb_bpp != 32) {
if (!quiet) rfbLog("disabling -8to24 mode:"
" bpp != 32 with depth == 24\n");
cmap8to24 = 0;
}
} else if (depth <= 16) {
/* need to cook up the screen fb to be depth 24 */
fb_bpp = 32;
fb_depth = 24;
} else {
if (!quiet) rfbLog("disabling -8to24 mode:"
" default depth not 16 or less\n");
cmap8to24 = 0;
}
}
setup_scaling(&width, &height);
if (scaling) {
rfbLog("scaling screen: %dx%d -> %dx%d\n", fb->width, fb->height, scaled_x, scaled_y);
rfbLog("scaling screen: scale_fac_x=%.5f scale_fac_y=%.5f\n", scale_fac_x, scale_fac_y);
rfb_bytes_per_line = (main_bytes_per_line / fb->width) * width;
} else {
rfb_bytes_per_line = main_bytes_per_line;
}
setup_rotating();
if (rotating) {
if (! rotating_same) {
int t, b = main_bytes_per_line / fb->width;
if (scaling) {
rot_bytes_per_line = b * height;
} else {
rot_bytes_per_line = b * fb->height;
}
t = width;
width = height; /* The big swap... */
height = t;
} else {
rot_bytes_per_line = rfb_bytes_per_line;
}
}
#ifndef NO_NCACHE
if (ncache > 0 && !nofb) {
# ifdef MACOSX
if (! raw_fb_str || macosx_console) {
# else
if (! raw_fb_str) {
# endif
char *new_fb;
int sz = fb->height * fb->bytes_per_line;
int ns = 1+ncache;
if (ncache_xrootpmap) {
ns++;
}
new_fb = (char *) calloc((size_t) (sz * ns), 1);
if (fb->data) {
memcpy(new_fb, fb->data, sz);
free(fb->data);
}
fb->data = new_fb;
fb->height *= (ns);
height *= (ns);
ncache0 = ncache;
}
}
#endif
if (cmap8to24) {
if (depth <= 8) {
rfb_bytes_per_line *= 4;
rot_bytes_per_line *= 4;
} else if (depth <= 16) {
rfb_bytes_per_line *= 2;
rot_bytes_per_line *= 2;
}
}
/*
* These are just hints wrt pixel format just to let
* rfbGetScreen/rfbNewFramebuffer proceed with reasonable
* defaults. We manually set them in painful detail below.
*/
bits_per_color = guess_bits_per_color(fb_bpp);
/* n.b. samplesPerPixel (set = 1 here) seems to be unused. */
if (create_screen) {
if (use_openssl) {
openssl_init(0);
} else if (use_stunnel) {
setup_stunnel(0, argc, argv);
}
screen = rfbGetScreen(argc, argv, width, height,
bits_per_color, 1, fb_bpp/8);
if (screen && http_dir) {
http_connections(1);
}
} else {
/* set set frameBuffer member below. */
rfbLog("rfbNewFramebuffer(0x%x, 0x%x, %d, %d, %d, %d, %d)\n",
screen, NULL, width, height, bits_per_color, 1, fb_bpp/8);
/* these are probably overwritten, but just to be safe: */
screen->bitsPerPixel = fb_bpp;
screen->depth = fb_depth;
rfbNewFramebuffer(screen, NULL, width, height,
bits_per_color, 1, (int) fb_bpp/8);
}
if (! screen) {
int i;
rfbLogEnable(1);
rfbLog("\n");
rfbLog("failed to create rfb screen.\n");
for (i=0; i< *argc; i++) {
rfbLog("\t[%d] %s\n", i, argv[i]);
}
clean_up_exit(1);
}
if (create_screen && *argc != 1) {
int i;
rfbLogEnable(1);
rfbLog("*** unrecognized option(s) ***\n");
for (i=1; i< *argc; i++) {
rfbLog("\t[%d] %s\n", i, argv[i]);
}
rfbLog("For a list of options run: x11vnc -opts\n");
rfbLog("or for the full help: x11vnc -help\n");
rfbLog("\n");
rfbLog("Here is a list of removed or obsolete"
" options:\n");
rfbLog("\n");
rfbLog("removed: -hints, -nohints\n");
rfbLog("removed: -cursorposall\n");
rfbLog("removed: -nofilexfer, now the default.\n");
rfbLog("\n");
rfbLog("renamed: -old_copytile, use -onetile\n");
rfbLog("renamed: -mouse, use -cursor\n");
rfbLog("renamed: -mouseX, use -cursor X\n");
rfbLog("renamed: -X, use -cursor X\n");
rfbLog("renamed: -nomouse, use -nocursor\n");
rfbLog("renamed: -old_pointer, use -pointer_mode 1\n");
clean_up_exit(1);
}
/* set up format from scratch: */
if (rotating && ! rotating_same) {
screen->paddedWidthInBytes = rot_bytes_per_line;
} else {
screen->paddedWidthInBytes = rfb_bytes_per_line;
}
screen->serverFormat.bitsPerPixel = fb_bpp;
screen->serverFormat.depth = fb_depth;
screen->serverFormat.trueColour = TRUE;
screen->serverFormat.redShift = 0;
screen->serverFormat.greenShift = 0;
screen->serverFormat.blueShift = 0;
screen->serverFormat.redMax = 0;
screen->serverFormat.greenMax = 0;
screen->serverFormat.blueMax = 0;
/* these main_* formats are used generally. */
main_red_shift = 0;
main_green_shift = 0;
main_blue_shift = 0;
main_red_max = 0;
main_green_max = 0;
main_blue_max = 0;
main_red_mask = fb->red_mask;
main_green_mask = fb->green_mask;
main_blue_mask = fb->blue_mask;
have_masks = ((fb->red_mask|fb->green_mask|fb->blue_mask) != 0);
if (force_indexed_color) {
have_masks = 0;
}
if (cmap8to24 && depth <= 16 && dpy) {
XVisualInfo vinfo;
vinfo.red_mask = 0;
vinfo.green_mask = 0;
vinfo.blue_mask = 0;
/* more cooking up... */
have_masks = 2;
/* need to fetch TrueColor visual */
X_LOCK;
if (dpy
#if !NO_X11
&& XMatchVisualInfo(dpy, scr, 24, TrueColor, &vinfo)
#endif
) {
main_red_mask = vinfo.red_mask;
main_green_mask = vinfo.green_mask;
main_blue_mask = vinfo.blue_mask;
} else if (fb->byte_order == LSBFirst) {
main_red_mask = 0x00ff0000;
main_green_mask = 0x0000ff00;
main_blue_mask = 0x000000ff;
} else {
main_red_mask = 0x000000ff;
main_green_mask = 0x0000ff00;
main_blue_mask = 0x00ff0000;
}
X_UNLOCK;
}
if (raw_fb_str && raw_fb_pixfmt) {
char *fmt = strdup(raw_fb_pixfmt);
uppercase(fmt);
if (strstr(fmt, "GREY")) {
set_greyscale_colormap();
} else if (strstr(fmt, "HI240")) {
set_hi240_colormap();
} else {
unset_colormap();
}
free(fmt);
}
if (! have_masks && screen->serverFormat.bitsPerPixel <= 16
&& dpy && CellsOfScreen(ScreenOfDisplay(dpy, scr))) {
/* indexed color. we let 1 <= bpp <= 16, but it is normally 8 */
if (!quiet) {
rfbLog("\n");
rfbLog("X display %s is %dbpp indexed color, depth=%d\n",
DisplayString(dpy), screen->serverFormat.bitsPerPixel,
screen->serverFormat.depth);
if (! flash_cmap && ! overlay) {
rfbLog("\n");
rfbLog("In 8bpp PseudoColor mode if you "
"experience color\n");
rfbLog("problems you may want to enable "
"following the\n");
rfbLog("changing colormap by using the "
"-flashcmap option.\n");
rfbLog("\n");
}
}
if (screen->serverFormat.depth < 8) {
rfbLog("resetting serverFormat.depth %d -> 8.\n",
screen->serverFormat.depth);
rfbLog("resetting serverFormat.bpp %d -> 8.\n",
screen->serverFormat.bitsPerPixel);
screen->serverFormat.depth = 8;
screen->serverFormat.bitsPerPixel = 8;
}
if (screen->serverFormat.depth > 8) {
rfbLog("WARNING: indexed color depth > 8, Tight encoding will crash.\n");
}
screen->serverFormat.trueColour = FALSE;
indexed_color = 1;
set_colormap(1);
debug_colormap(fb);
} else {
/*
* general case, we call it truecolor, but could be direct
* color, static color, etc....
*/
if (! quiet) {
if (raw_fb) {
rfbLog("\n");
rfbLog("Raw fb at addr %p is %dbpp depth=%d "
"true color\n", raw_fb_addr,
fb_bpp, fb_depth);
} else if (! dpy) {
;
} else if (have_masks == 2) {
rfbLog("\n");
rfbLog("X display %s is %dbpp depth=%d indexed "
"color (-8to24 mode)\n", DisplayString(dpy),
fb->bits_per_pixel, fb->depth);
} else {
rfbLog("\n");
rfbLog("X display %s is %dbpp depth=%d true "
"color\n", DisplayString(dpy),
fb_bpp, fb_depth);
}
}
indexed_color = 0;
if (!have_masks) {
int M, B = bits_per_color;
if (3*B > fb_bpp) B--;
if (B < 1) B = 1;
M = (1 << B) - 1;
rfbLog("WARNING: all TrueColor RGB masks are zero!\n");
rfbLog("WARNING: cooking something up for VNC fb... B=%d M=%d\n", B, M);
main_red_mask = M;
main_green_mask = M;
main_blue_mask = M;
main_red_mask = main_red_mask << (2*B);
main_green_mask = main_green_mask << (1*B);
main_blue_mask = main_blue_mask << (0*B);
fprintf(stderr, " red_mask: 0x%08lx %s\n", main_red_mask,
bitprint(main_red_mask, 32));
fprintf(stderr, " green_mask: 0x%08lx %s\n", main_green_mask,
bitprint(main_green_mask, 32));
fprintf(stderr, " blue_mask: 0x%08lx %s\n", main_blue_mask,
bitprint(main_blue_mask, 32));
}
/* convert masks to bit shifts and max # colors */
if (main_red_mask) {
while (! (main_red_mask
& (1 << screen->serverFormat.redShift))) {
screen->serverFormat.redShift++;
}
}
if (main_green_mask) {
while (! (main_green_mask
& (1 << screen->serverFormat.greenShift))) {
screen->serverFormat.greenShift++;
}
}
if (main_blue_mask) {
while (! (main_blue_mask
& (1 << screen->serverFormat.blueShift))) {
screen->serverFormat.blueShift++;
}
}
screen->serverFormat.redMax
= main_red_mask >> screen->serverFormat.redShift;
screen->serverFormat.greenMax
= main_green_mask >> screen->serverFormat.greenShift;
screen->serverFormat.blueMax
= main_blue_mask >> screen->serverFormat.blueShift;
main_red_max = screen->serverFormat.redMax;
main_green_max = screen->serverFormat.greenMax;
main_blue_max = screen->serverFormat.blueMax;
main_red_shift = screen->serverFormat.redShift;
main_green_shift = screen->serverFormat.greenShift;
main_blue_shift = screen->serverFormat.blueShift;
}
#if !SMALL_FOOTPRINT
if (verbose) {
fprintf(stderr, "\n");
fprintf(stderr, "FrameBuffer Info:\n");
fprintf(stderr, " width: %d\n", fb->width);
fprintf(stderr, " height: %d\n", fb->height);
fprintf(stderr, " scaled_width: %d\n", width);
fprintf(stderr, " scaled_height: %d\n", height);
fprintf(stderr, " indexed_color: %d\n", indexed_color);
fprintf(stderr, " bits_per_pixel: %d\n", fb->bits_per_pixel);
fprintf(stderr, " depth: %d\n", fb->depth);
fprintf(stderr, " red_mask: 0x%08lx %s\n", fb->red_mask,
bitprint(fb->red_mask, 32));
fprintf(stderr, " green_mask: 0x%08lx %s\n", fb->green_mask,
bitprint(fb->green_mask, 32));
fprintf(stderr, " blue_mask: 0x%08lx %s\n", fb->blue_mask,
bitprint(fb->blue_mask, 32));
if (cmap8to24) {
fprintf(stderr, " 8to24 info:\n");
fprintf(stderr, " fb_bpp: %d\n", fb_bpp);
fprintf(stderr, " fb_depth: %d\n", fb_depth);
fprintf(stderr, " red_mask: 0x%08lx %s\n", main_red_mask,
bitprint(main_red_mask, 32));
fprintf(stderr, " green_mask: 0x%08lx %s\n", main_green_mask,
bitprint(main_green_mask, 32));
fprintf(stderr, " blue_mask: 0x%08lx %s\n", main_blue_mask,
bitprint(main_blue_mask, 32));
}
fprintf(stderr, " red: max: %3d shift: %2d\n",
main_red_max, main_red_shift);
fprintf(stderr, " green: max: %3d shift: %2d\n",
main_green_max, main_green_shift);
fprintf(stderr, " blue: max: %3d shift: %2d\n",
main_blue_max, main_blue_shift);
fprintf(stderr, " mainfb_bytes_per_line: %d\n",
main_bytes_per_line);
fprintf(stderr, " rfb_fb_bytes_per_line: %d\n",
rfb_bytes_per_line);
fprintf(stderr, " rot_fb_bytes_per_line: %d\n",
rot_bytes_per_line);
fprintf(stderr, " raw_fb_bytes_per_line: %d\n",
raw_fb_bytes_per_line);
switch(fb->format) {
case XYBitmap:
fprintf(stderr, " format: XYBitmap\n"); break;
case XYPixmap:
fprintf(stderr, " format: XYPixmap\n"); break;
case ZPixmap:
fprintf(stderr, " format: ZPixmap\n"); break;
default:
fprintf(stderr, " format: %d\n", fb->format); break;
}
switch(fb->byte_order) {
case LSBFirst:
fprintf(stderr, " byte_order: LSBFirst\n"); break;
case MSBFirst:
fprintf(stderr, " byte_order: MSBFirst\n"); break;
default:
fprintf(stderr, " byte_order: %d\n", fb->byte_order);
break;
}
fprintf(stderr, " bitmap_pad: %d\n", fb->bitmap_pad);
fprintf(stderr, " bitmap_unit: %d\n", fb->bitmap_unit);
switch(fb->bitmap_bit_order) {
case LSBFirst:
fprintf(stderr, " bitmap_bit_order: LSBFirst\n"); break;
case MSBFirst:
fprintf(stderr, " bitmap_bit_order: MSBFirst\n"); break;
default:
fprintf(stderr, " bitmap_bit_order: %d\n",
fb->bitmap_bit_order); break;
}
}
if (overlay && ! quiet) {
rfbLog("\n");
rfbLog("Overlay mode enabled: If you experience color\n");
rfbLog("problems when popup menus are on the screen, try\n");
rfbLog("disabling SaveUnders in your X server, one way is\n");
rfbLog("to start the X server with the '-su' option, e.g.:\n");
rfbLog("Xsun -su ... see Xserver(1), xinit(1) for more info.\n");
rfbLog("\n");
}
#endif
/* nofb is for pointer/keyboard only handling. */
if (nofb) {
main_fb = NULL;
rfb_fb = main_fb;
cmap8to24_fb = NULL;
rot_fb = NULL;
screen->displayHook = nofb_hook;
} else {
main_fb = fb->data;
rfb_fb = NULL;
cmap8to24_fb = NULL;
rot_fb = NULL;
if (cmap8to24) {
int n = main_bytes_per_line * fb->height;
if (depth <= 8) {
n *= 4;
} else if (depth <= 16) {
n *= 2;
}
cmap8to24_fb = (char *) malloc(n);
memset(cmap8to24_fb, 0, n);
}
if (rotating) {
int n = rot_bytes_per_line * height;
rot_fb = (char *) malloc(n);
memset(rot_fb, 0, n);
}
if (scaling) {
int n = rfb_bytes_per_line * height;
if (rotating && ! rotating_same) {
n = rot_bytes_per_line * height;
}
rfb_fb = (char *) malloc(n);
memset(rfb_fb, 0, n);
} else if (cmap8to24) {
rfb_fb = cmap8to24_fb;
} else {
rfb_fb = main_fb;
}
}
if (rot_fb) {
screen->frameBuffer = rot_fb;
} else {
screen->frameBuffer = rfb_fb;
}
if (verbose) {
fprintf(stderr, " rfb_fb: %p\n", rfb_fb);
fprintf(stderr, " main_fb: %p\n", main_fb);
fprintf(stderr, " 8to24_fb: %p\n", cmap8to24_fb);
fprintf(stderr, " rot_fb: %p\n", rot_fb);
fprintf(stderr, " snap_fb: %p\n", snap_fb);
fprintf(stderr, " raw_fb: %p\n", raw_fb);
fprintf(stderr, " fake_fb: %p\n", fake_fb);
fprintf(stderr, "\n");
}
/* may need, bpp, main_red_max, etc. */
parse_wireframe();
parse_scroll_copyrect();
setup_cursors_and_push();
if (scaling || rotating || cmap8to24) {
mark_rect_as_modified(0, 0, dpy_x, dpy_y, 0);
}
if (! create_screen) {
rfbClientIteratorPtr iter;
rfbClientPtr cl;
/*
* since bits_per_color above may have been approximate,
* try to reset the individual translation tables...
* we do not seem to need this with rfbGetScreen()...
*/
if (!quiet) rfbLog("calling setTranslateFunction()...\n");
iter = rfbGetClientIterator(screen);
while ((cl = rfbClientIteratorNext(iter)) != NULL) {
screen->setTranslateFunction(cl);
}
rfbReleaseClientIterator(iter);
if (!quiet) rfbLog(" done.\n");
do_copy_screen = 1;
/* done for framebuffer change case */
return;
}
/*
* the rest is screen server initialization, etc, only needed
* at screen creation time.
*/
/* event callbacks: */
screen->newClientHook = new_client;
screen->kbdAddEvent = keyboard;
screen->ptrAddEvent = pointer;
screen->setXCutText = xcut_receive;
screen->setTranslateFunction = set_xlate_wrapper;
screen->kbdReleaseAllKeys = kbd_release_all_keys;
screen->setSingleWindow = set_single_window;
screen->setServerInput = set_server_input;
screen->setTextChat = set_text_chat;
screen->getFileTransferPermission = get_file_transfer_permitted;
/* called from inetd, we need to treat stdio as our socket */
if (inetd && use_openssl) {
/* accept_openssl() called later */
screen->port = 0;
} else if (inetd) {
int fd = dup(0);
if (fd < 0) {
rfbLogEnable(1);
rfbErr("dup(0) = %d failed.\n", fd);
rfbLogPerror("dup");
clean_up_exit(1);
}
fclose(stdin);
fclose(stdout);
/* we keep stderr for logging */
screen->inetdSock = fd;
screen->port = 0;
} else if (! got_rfbport && auto_port > 0) {
int lport = find_free_port(auto_port, auto_port+200);
screen->autoPort = FALSE;
screen->port = lport;
} else if (! got_rfbport) {
screen->autoPort = TRUE;
} else if (got_rfbport && got_rfbport_val == 0) {
screen->autoPort = FALSE;
screen->port = 0;
}
if (! got_nevershared && ! got_alwaysshared) {
if (shared) {
screen->alwaysShared = TRUE;
} else {
screen->neverShared = TRUE;
}
screen->dontDisconnect = TRUE;
}
if (! got_deferupdate) {
screen->deferUpdateTime = defer_update;
} else {
defer_update = screen->deferUpdateTime;
}
rfbInitServer(screen);
if (use_openssl) {
openssl_port();
if (https_port_num >= 0) {
https_port();
}
}
install_passwds();
}
#define DO_AVAHI \
if (avahi) { \
avahi_initialise(); \
avahi_advertise(vnc_desktop_name, host, lport); \
usleep(1000*1000); \
}
void announce(int lport, int ssl, char *iface) {
char *host = this_host();
char *tvdt;
if (! ssl) {
tvdt = "The VNC desktop is: ";
} else {
if (enc_str && !strcmp(enc_str, "none")) {
tvdt = "The VNC desktop is: ";
} else if (enc_str) {
tvdt = "The ENC VNC desktop is: ";
} else {
tvdt = "The SSL VNC desktop is: ";
}
}
if (iface != NULL && *iface != '\0' && strcmp(iface, "any")) {
host = iface;
}
if (host != NULL) {
/* note that vncviewer special cases 5900-5999 */
int sz = 256;
if (inetd) {
; /* should not occur (port) */
} else if (quiet) {
if (lport >= 5900) {
snprintf(vnc_desktop_name, sz, "%s:%d",
host, lport - 5900);
DO_AVAHI
fprintf(stderr, "\n%s %s\n", tvdt,
vnc_desktop_name);
} else {
snprintf(vnc_desktop_name, sz, "%s:%d",
host, lport);
DO_AVAHI
fprintf(stderr, "\n%s %s\n", tvdt,
vnc_desktop_name);
}
} else if (lport >= 5900) {
snprintf(vnc_desktop_name, sz, "%s:%d",
host, lport - 5900);
DO_AVAHI
fprintf(stderr, "\n%s %s\n", tvdt, vnc_desktop_name);
if (lport >= 6000) {
rfbLog("possible aliases: %s:%d, "
"%s::%d\n", host, lport,
host, lport);
}
} else {
snprintf(vnc_desktop_name, sz, "%s:%d",
host, lport);
DO_AVAHI
fprintf(stderr, "\n%s %s\n", tvdt, vnc_desktop_name);
rfbLog("possible alias: %s::%d\n",
host, lport);
}
}
}
static void announce_http(int lport, int ssl, char *iface) {
char *host = this_host();
char *jvu;
if (enc_str && !strcmp(enc_str, "none")) {
jvu = "Java viewer URL: http";
} else if (ssl == 1) {
jvu = "Java SSL viewer URL: https";
} else if (ssl == 2) {
jvu = "Java SSL viewer URL: http";
} else {
jvu = "Java viewer URL: http";
}
if (iface != NULL && *iface != '\0' && strcmp(iface, "any")) {
host = iface;
}
if (host != NULL) {
if (! inetd) {
fprintf(stderr, "%s://%s:%d/\n", jvu, host, lport);
if (screen && enc_str && !strcmp(enc_str, "none")) {
fprintf(stderr, "%s://%s:%d/\n", jvu, host, screen->port);
}
}
}
}
void set_vnc_desktop_name(void) {
sprintf(vnc_desktop_name, "unknown");
if (inetd) {
sprintf(vnc_desktop_name, "%s/inetd-no-further-clients",
this_host());
}
if (screen->port) {
if (! quiet) {
if (screen->httpListenSock > -1 && screen->httpPort) {
rfbLog("\n");
rfbLog("The URLs printed out below ('Java ... viewer URL') can\n");
rfbLog("be used for Java enabled Web browser connections.\n");
if (enc_str && !strcmp(enc_str, "none")) {
;
} else if (use_openssl || stunnel_port) {
rfbLog("Here are some additional possibilities:\n");
rfbLog("\n");
rfbLog("https://host:port/proxy.vnc (MUST be used if Web Proxy used)\n");
rfbLog("\n");
rfbLog("https://host:port/ultra.vnc (Use UltraVNC Java Viewer)\n");
rfbLog("https://host:port/ultraproxy.vnc (Web Proxy with UltraVNC)\n");
rfbLog("https://host:port/ultrasigned.vnc (Signed UltraVNC Filexfer)\n");
rfbLog("\n");
rfbLog("Where you replace \"host:port\" with that printed below, or\n");
rfbLog("whatever is needed to reach the host e.g. Internet IP number\n");
}
}
rfbLog("\n");
}
if (use_openssl) {
announce(screen->port, 1, listen_str);
} else {
announce(screen->port, 0, listen_str);
}
if (stunnel_port) {
announce(stunnel_port, 1, NULL);
}
if (screen->httpListenSock > -1 && screen->httpPort) {
if (use_openssl) {
if (enc_str && !strcmp(enc_str, "none")) {
;
} else {
announce_http(screen->port, 1, listen_str);
}
if (https_port_num >= 0) {
announce_http(https_port_num, 1,
listen_str);
}
announce_http(screen->httpPort, 2, listen_str);
} else if (use_stunnel) {
announce_http(screen->httpPort, 2, listen_str);
} else {
announce_http(screen->httpPort, 0, listen_str);
}
}
fflush(stderr);
if (inetd) {
; /* should not occur (port != 0) */
} else {
fprintf(stdout, "PORT=%d\n", screen->port);
if (stunnel_port) {
fprintf(stdout, "SSLPORT=%d\n", stunnel_port);
} else if (use_openssl) {
if (enc_str && !strcmp(enc_str, "none")) {
;
} else if (enc_str) {
fprintf(stdout, "ENCPORT=%d\n", screen->port);
} else {
fprintf(stdout, "SSLPORT=%d\n", screen->port);
}
}
fflush(stdout);
if (flagfile) {
FILE *flag = fopen(flagfile, "w");
if (flag) {
fprintf(flag, "PORT=%d\n",screen->port);
if (stunnel_port) {
fprintf(flag, "SSL_PORT=%d\n",
stunnel_port);
}
fflush(flag);
fclose(flag);
} else {
rfbLog("could not open flag file: %s\n",
flagfile);
}
}
if (rm_flagfile) {
int create = 0;
struct stat sb;
if (strstr(rm_flagfile, "create:") == rm_flagfile) {
char *s = rm_flagfile;
create = 1;
rm_flagfile = strdup(rm_flagfile + strlen("create:"));
free(s);
}
if (strstr(rm_flagfile, "nocreate:") == rm_flagfile) {
char *s = rm_flagfile;
create = 0;
rm_flagfile = strdup(rm_flagfile + strlen("nocreate:"));
free(s);
} else if (stat(rm_flagfile, &sb) != 0) {
create = 1;
}
if (create) {
FILE *flag = fopen(rm_flagfile, "w");
if (flag) {
fprintf(flag, "%d\n", getpid());
fclose(flag);
}
}
}
}
fflush(stdout);
}
}
static void check_cursor_changes(void) {
static double last_push = 0.0;
if (unixpw_in_progress) return;
cursor_changes += check_x11_pointer();
if (cursor_changes) {
double tm, max_push = 0.125, multi_push = 0.01, wait = 0.02;
int cursor_shape, dopush = 0, link, latency, netrate;
if (! all_clients_initialized()) {
/* play it safe */
return;
}
if (0) cursor_shape = cursor_shape_updates_clients(screen);
dtime0(&tm);
link = link_rate(&latency, &netrate);
if (link == LR_DIALUP) {
max_push = 0.2;
wait = 0.05;
} else if (link == LR_BROADBAND) {
max_push = 0.075;
wait = 0.05;
} else if (link == LR_LAN) {
max_push = 0.01;
} else if (latency < 5 && netrate > 200) {
max_push = 0.01;
}
if (tm > last_push + max_push) {
dopush = 1;
} else if (cursor_changes > 1 && tm > last_push + multi_push) {
dopush = 1;
}
if (dopush) {
mark_rect_as_modified(0, 0, 1, 1, 1);
fb_push_wait(wait, FB_MOD);
last_push = tm;
} else {
rfbPE(0);
}
}
cursor_changes = 0;
}
/*
* These watch_loop() releated were moved from x11vnc.c so we could try
* to remove -O2 from its compilation. TDB new file, e.g. watch.c.
*/
static void check_filexfer(void) {
static time_t last_check = 0;
rfbClientIteratorPtr iter;
rfbClientPtr cl;
int transferring = 0;
if (time(NULL) <= last_check) {
return;
}
#if 0
if (getenv("NOFT")) {
return;
}
#endif
iter = rfbGetClientIterator(screen);
while( (cl = rfbClientIteratorNext(iter)) ) {
if (cl->fileTransfer.receiving) {
transferring = 1;
break;
}
if (cl->fileTransfer.sending) {
transferring = 1;
break;
}
}
rfbReleaseClientIterator(iter);
if (transferring) {
double start = dnow();
while (dnow() < start + 0.5) {
rfbCFD(5000);
rfbCFD(1000);
rfbCFD(0);
}
} else {
last_check = time(NULL);
}
}
static void record_last_fb_update(void) {
static int rbs0 = -1;
static time_t last_call = 0;
time_t now = time(NULL);
int rbs = -1;
rfbClientIteratorPtr iter;
rfbClientPtr cl;
if (last_fb_bytes_sent == 0) {
last_fb_bytes_sent = now;
last_call = now;
}
if (now <= last_call + 1) {
/* check every second or so */
return;
}
if (unixpw_in_progress) return;
last_call = now;
if (! screen) {
return;
}
iter = rfbGetClientIterator(screen);
while( (cl = rfbClientIteratorNext(iter)) ) {
#if 0
rbs += cl->rawBytesEquivalent;
#else
#if LIBVNCSERVER_HAS_STATS
rbs += rfbStatGetSentBytesIfRaw(cl);
#endif
#endif
}
rfbReleaseClientIterator(iter);
if (rbs != rbs0) {
rbs0 = rbs;
if (debug_tiles > 1) {
fprintf(stderr, "record_last_fb_update: %d %d\n",
(int) now, (int) last_fb_bytes_sent);
}
last_fb_bytes_sent = now;
}
}
static int choose_delay(double dt) {
static double t0 = 0.0, t1 = 0.0, t2 = 0.0, now;
static int x0, y0, x1, y1, x2, y2, first = 1;
int dx0, dy0, dx1, dy1, dm, i, msec = waitms;
double cut1 = 0.15, cut2 = 0.075, cut3 = 0.25;
double bogdown_time = 0.25, bave = 0.0;
int bogdown = 1, bcnt = 0;
int ndt = 8, nave = 3;
double fac = 1.0;
static int db = 0, did_set_defer = 0;
static double dts[8];
static int link = LR_UNSET, latency = -1, netrate = -1;
static double last_link = 0.0;
if (screen && did_set_defer) {
/* reset defer in case we changed it */
screen->deferUpdateTime = defer_update;
}
if (waitms == 0) {
return waitms;
}
if (nofb) {
return waitms;
}
if (first) {
for(i=0; i<ndt; i++) {
dts[i] = 0.0;
}
if (getenv("DEBUG_DELAY")) {
db = atoi(getenv("DEBUG_DELAY"));
}
if (getenv("SET_DEFER")) {
set_defer = atoi(getenv("SET_DEFER"));
}
first = 0;
}
now = dnow();
if (now > last_link + 30.0 || link == LR_UNSET) {
link = link_rate(&latency, &netrate);
last_link = now;
}
/*
* first check for bogdown, e.g. lots of activity, scrolling text
* from command output, etc.
*/
if (nap_ok) {
dt = 0.0;
}
if (! wait_bog) {
bogdown = 0;
} else if (button_mask || now < last_keyboard_time + 2*bogdown_time) {
/*
* let scrolls & keyboard input through the normal way
* otherwise, it will likely just annoy them.
*/
bogdown = 0;
} else if (dt > 0.0) {
/*
* inspect recent dt's:
* 0 1 2 3 4 5 6 7 dt
* ^ ^ ^
*/
for (i = ndt - (nave - 1); i < ndt; i++) {
bave += dts[i];
bcnt++;
if (dts[i] < bogdown_time) {
bogdown = 0;
break;
}
}
bave += dt;
bcnt++;
bave = bave / bcnt;
if (dt < bogdown_time) {
bogdown = 0;
}
} else {
bogdown = 0;
}
/* shift for next time */
for (i = 0; i < ndt-1; i++) {
dts[i] = dts[i+1];
}
dts[ndt-1] = dt;
if (0 && dt > 0.0) fprintf(stderr, "dt: %.5f %.4f\n", dt, dnowx());
if (bogdown) {
if (use_xdamage) {
/* DAMAGE can queue ~1000 rectangles for a scroll */
clear_xdamage_mark_region(NULL, 0);
}
msec = (int) (1000 * 1.75 * bave);
if (dts[ndt - nave - 1] > 0.75 * bave) {
msec = 1.5 * msec;
set_xdamage_mark(0, 0, dpy_x, dpy_y);
}
if (msec > 1500) {
msec = 1500;
}
if (msec < waitms) {
msec = waitms;
}
db = (db || debug_tiles);
if (db) fprintf(stderr, "bogg[%d] %.3f %.3f %.3f %.3f\n",
msec, dts[ndt-4], dts[ndt-3], dts[ndt-2], dts[ndt-1]);
return msec;
}
/* next check for pointer motion, keystrokes, to speed up */
t2 = dnow();
x2 = cursor_x;
y2 = cursor_y;
dx0 = nabs(x1 - x0);
dy0 = nabs(y1 - y0);
dx1 = nabs(x2 - x1);
dy1 = nabs(y2 - y1);
/* bigger displacement for most recent dt: */
if (dx1 > dy1) {
dm = dx1;
} else {
dm = dy1;
}
if ((dx0 || dy0) && (dx1 || dy1)) {
/* if mouse moved the previous two times: */
if (t2 < t0 + cut1 || t2 < t1 + cut2 || dm > 20) {
/*
* if within 0.15s(0) or 0.075s(1) or mouse
* moved > 20pixels, set and bump up the cut
* down factor.
*/
fac = wait_ui * 1.5;
} else if ((dx1 || dy1) && dm > 40) {
fac = wait_ui;
} else {
/* still 1.0? */
if (db > 1) fprintf(stderr, "wait_ui: still 1.0\n");
}
} else if ((dx1 || dy1) && dm > 40) {
/* if mouse moved > 40 last time: */
fac = wait_ui;
}
if (fac == 1.0 && t2 < last_keyboard_time + cut3) {
/* if typed in last 0.25s set wait_ui */
fac = wait_ui;
}
if (fac != 1.0) {
if (link == LR_LAN || latency <= 3) {
fac *= 1.5;
}
}
msec = (int) (((double) waitms) / fac);
if (msec == 0) {
msec = 1;
}
if (set_defer && fac != 1.0 && screen) {
/* this is wait_ui mode, set defer to match wait: */
if (set_defer >= 1) {
screen->deferUpdateTime = msec;
} else if (set_defer <= -1) {
screen->deferUpdateTime = 0;
}
if (nabs(set_defer) == 2) {
urgent_update = 1;
}
did_set_defer = 1;
}
x0 = x1;
y0 = y1;
t0 = t1;
x1 = x2;
y1 = y2;
t1 = t2;
if (db > 1) fprintf(stderr, "wait: %2d defer[%02d]: %2d\n", msec, defer_update, screen->deferUpdateTime);
return msec;
}
/*
* main x11vnc loop: polls, checks for events, iterate libvncserver, etc.
*/
void watch_loop(void) {
int cnt = 0, tile_diffs = 0, skip_pe = 0, wait;
double tm, dtr, dt = 0.0;
time_t start = time(NULL);
if (use_threads) {
rfbRunEventLoop(screen, -1, TRUE);
}
while (1) {
char msg[] = "new client: %s taking unixpw client off hold.\n";
got_user_input = 0;
got_pointer_input = 0;
got_local_pointer_input = 0;
got_pointer_calls = 0;
got_keyboard_input = 0;
got_keyboard_calls = 0;
urgent_update = 0;
x11vnc_current = dnow();
if (! use_threads) {
dtime0(&tm);
if (! skip_pe) {
if (unixpw_in_progress) {
rfbClientPtr cl = unixpw_client;
if (cl && cl->onHold) {
rfbLog(msg, cl->host);
unixpw_client->onHold = FALSE;
}
} else {
measure_send_rates(1);
}
unixpw_in_rfbPE = 1;
/*
* do a few more since a key press may
* have induced a small change we want to
* see quickly (just 1 rfbPE will likely
* only process the subsequent "up" event)
*/
if (tm < last_keyboard_time + 0.16) {
rfbPE(0);
rfbPE(0);
rfbPE(-1);
rfbPE(0);
rfbPE(0);
} else {
rfbPE(-1);
}
unixpw_in_rfbPE = 0;
if (unixpw_in_progress) {
/* rfbPE loop until logged in. */
skip_pe = 0;
check_new_clients();
continue;
} else {
measure_send_rates(0);
fb_update_sent(NULL);
}
} else {
if (unixpw_in_progress) {
skip_pe = 0;
check_new_clients();
continue;
}
}
dtr = dtime(&tm);
if (! cursor_shape_updates) {
/* undo any cursor shape requests */
disable_cursor_shape_updates(screen);
}
if (screen && screen->clientHead) {
int ret = check_user_input(dt, dtr,
tile_diffs, &cnt);
/* true: loop back for more input */
if (ret == 2) {
skip_pe = 1;
}
if (ret) {
if (debug_scroll) fprintf(stderr, "watch_loop: LOOP-BACK: %d\n", ret);
continue;
}
}
/* watch for viewonly input piling up: */
if ((got_pointer_calls > got_pointer_input) ||
(got_keyboard_calls > got_keyboard_input)) {
eat_viewonly_input(10, 3);
}
} else {
/* -threads here. */
if (wireframe && button_mask) {
check_wireframe();
}
}
skip_pe = 0;
if (shut_down) {
clean_up_exit(0);
}
if (unixpw_in_progress) {
check_new_clients();
continue;
}
if (! urgent_update) {
if (do_copy_screen) {
do_copy_screen = 0;
copy_screen();
}
check_new_clients();
check_ncache(0, 0);
check_xevents(0);
check_autorepeat();
check_pm();
check_filexfer();
check_keycode_state();
check_connect_inputs();
check_gui_inputs();
check_stunnel();
check_openssl();
check_https();
record_last_fb_update();
check_padded_fb();
check_fixscreen();
check_xdamage_state();
check_xrecord_reset(0);
check_add_keysyms();
check_new_passwds(0);
#ifdef ENABLE_GRABLOCAL
if (grab_local) {
check_local_grab();
}
#endif
if (started_as_root) {
check_switched_user();
}
if (first_conn_timeout < 0) {
start = time(NULL);
first_conn_timeout = -first_conn_timeout;
}
}
if (rawfb_vnc_reflect) {
static time_t lastone = 0;
if (time(NULL) > lastone + 10) {
lastone = time(NULL);
vnc_reflect_process_client();
}
}
if (! screen || ! screen->clientHead) {
/* waiting for a client */
if (first_conn_timeout) {
if (time(NULL) - start > first_conn_timeout) {
rfbLog("No client after %d secs.\n",
first_conn_timeout);
shut_down = 1;
}
}
usleep(200 * 1000);
continue;
}
if (first_conn_timeout && all_clients_initialized()) {
first_conn_timeout = 0;
}
if (nofb) {
/* no framebuffer polling needed */
if (cursor_pos_updates) {
check_x11_pointer();
}
#ifdef MACOSX
else check_x11_pointer();
#endif
continue;
}
if (button_mask && (!show_dragging || pointer_mode == 0)) {
/*
* if any button is pressed in this mode do
* not update rfb screen, but do flush the
* X11 display.
*/
X_LOCK;
XFlush_wr(dpy);
X_UNLOCK;
dt = 0.0;
} else {
static double last_dt = 0.0;
double xdamage_thrash = 0.4;
check_cursor_changes();
/* for timing the scan to try to detect thrashing */
if (use_xdamage && last_dt > xdamage_thrash) {
clear_xdamage_mark_region(NULL, 0);
}
if (unixpw_in_progress) continue;
if (rawfb_vnc_reflect) {
vnc_reflect_process_client();
}
dtime0(&tm);
#if !NO_X11
if (xrandr_present && !xrandr && xrandr_maybe) {
int delay = 180;
/* there may be xrandr right after xsession start */
if (tm < x11vnc_start + delay || tm < last_client + delay) {
int tw = 20;
if (auth_file != NULL) {
tw = 120;
}
X_LOCK;
if (tm < x11vnc_start + tw || tm < last_client + tw) {
XSync(dpy, False);
} else {
XFlush_wr(dpy);
}
X_UNLOCK;
}
check_xrandr_event("before-scan");
}
#endif
if (use_snapfb) {
int t, tries = 3;
copy_snap();
for (t=0; t < tries; t++) {
tile_diffs = scan_for_updates(0);
}
} else {
tile_diffs = scan_for_updates(0);
}
dt = dtime(&tm);
if (! nap_ok) {
last_dt = dt;
}
if ((debug_tiles || debug_scroll > 1 || debug_wireframe > 1)
&& (tile_diffs > 4 || debug_tiles > 1)) {
double rate = (tile_x * tile_y * bpp/8 * tile_diffs) / dt;
fprintf(stderr, "============================= TILES: %d dt: %.4f"
" t: %.4f %.2f MB/s nap_ok: %d\n", tile_diffs, dt,
tm - x11vnc_start, rate/1000000.0, nap_ok);
}
}
/* sleep a bit to lessen load */
wait = choose_delay(dt);
if (urgent_update) {
;
} else if (wait > 2*waitms) {
/* bog case, break it up */
nap_sleep(wait, 10);
} else {
usleep(wait * 1000);
}
cnt++;
}
}
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