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KasmVNC/unix/xserver/hw/vnc/xvnc.c
Lauri Kasanen 3bae812364 Add support for relaying unix sockets
2023-02-16 15:51:26 +02:00

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/* Copyright (c) 1993 X Consortium
Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
Copyright 2009-2015 Pierre Ossman for Cendio AB
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of the X Consortium shall
not be used in advertising or otherwise to promote the sale, use or
other dealings in this Software without prior written authorization
from the X Consortium.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "vncExtInit.h"
#include "RFBGlue.h"
#include "XorgGlue.h"
#include "RandrGlue.h"
#include "xorg-version.h"
#ifdef WIN32
#include <X11/Xwinsock.h>
#endif
#include <stdio.h>
#include <X11/X.h>
#define NEED_EVENTS
#include <X11/Xproto.h>
#include <X11/Xos.h>
#include "scrnintstr.h"
#if XORG >= 120
#include "glx_extinit.h"
#endif
#include "servermd.h"
#include "fb.h"
#include "mi.h"
#if XORG < 114
#include "mibstore.h"
#endif
#include "colormapst.h"
#include "gcstruct.h"
#include "input.h"
#include "mipointer.h"
#include "micmap.h"
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#ifndef WIN32
#include <sys/param.h>
#endif
#include <X11/XWDFile.h>
#ifdef HAS_SHM
#include <sys/ipc.h>
#include <sys/shm.h>
#endif /* HAS_SHM */
#include "dix.h"
#include "os.h"
#include "miline.h"
#include "inputstr.h"
#include "randrstr.h"
#ifdef DPMSExtension
#include "dpmsproc.h"
#endif
#include <X11/keysym.h>
extern char buildtime[];
#undef VENDOR_RELEASE
#undef VENDOR_STRING
#include "version-config.h"
#include "site.h"
#define XVNCVERSION "KasmVNC 0.9"
#define XVNCCOPYRIGHT ("Copyright (C) 1999-2018 KasmVNC Team and many others (see README.me)\n" \
"See http://kasmweb.com for information on KasmVNC.\n")
#define VFB_DEFAULT_WIDTH 1024
#define VFB_DEFAULT_HEIGHT 768
#define VFB_DEFAULT_DEPTH 24
#define VFB_DEFAULT_WHITEPIXEL 0xffffffff
#define VFB_DEFAULT_BLACKPIXEL 0
#define VFB_DEFAULT_LINEBIAS 0
#define XWD_WINDOW_NAME_LEN 60
typedef struct
{
int width;
int height;
int depth;
/* Computed when allocated */
int paddedBytesWidth;
int paddedWidth;
int bitsPerPixel;
/* Private */
int sizeInBytes;
void *pfbMemory;
#ifdef HAS_SHM
int shmid;
#endif
} vfbFramebufferInfo, *vfbFramebufferInfoPtr;
typedef struct
{
int scrnum;
Pixel blackPixel;
Pixel whitePixel;
unsigned int lineBias;
CloseScreenProcPtr closeScreen;
vfbFramebufferInfo fb;
Bool pixelFormatDefined;
Bool rgbNotBgr;
int redBits, greenBits, blueBits;
} vfbScreenInfo, *vfbScreenInfoPtr;
static int vfbNumScreens;
static vfbScreenInfo vfbScreens[MAXSCREENS];
static Bool vfbPixmapDepths[33];
typedef enum { NORMAL_MEMORY_FB, SHARED_MEMORY_FB } fbMemType;
static fbMemType fbmemtype = NORMAL_MEMORY_FB;
static int lastScreen = -1;
static Bool Render = TRUE;
static Bool displaySpecified = FALSE;
static char displayNumStr[16];
static int vncVerbose = DEFAULT_LOG_VERBOSITY;
int unixrelays[MAX_UNIX_RELAYS];
char unixrelaynames[MAX_UNIX_RELAYS][MAX_UNIX_RELAY_NAME_LEN];
struct sockaddr_un unixrelayclients[MAX_UNIX_RELAYS];
static unsigned addrelay(const char * const arg)
{
const char *ptr = strchr(arg, ':');
if (!ptr) {
ErrorF("Invalid unixrelay\n");
return 1;
}
const unsigned namelen = ptr - arg;
if (namelen >= MAX_UNIX_RELAY_NAME_LEN) {
ErrorF("Unix relay name too long\n");
return 1;
}
unsigned i;
unsigned char found = 0;
for (i = 0; i < MAX_UNIX_RELAYS; i++) {
if (unixrelays[i] == -1) {
found = 1;
break;
}
}
if (!found) {
ErrorF("Too many unix relays\n");
return 1;
}
memcpy(unixrelaynames[i], arg, namelen);
unixrelaynames[i][namelen] = '\0';
unixrelays[i] = socket(AF_UNIX, SOCK_DGRAM, 0);
if (unixrelays[i] < 0) {
ErrorF("Failed to create unix sock\n");
return 1;
}
ptr++;
struct sockaddr_un sa;
if (strlen(ptr) >= sizeof(sa.sun_path)) {
ErrorF("Unix relay path too long\n");
return 1;
}
sa.sun_family = AF_UNIX;
strcpy(sa.sun_path, ptr);
// SO_REUSEADDR doesn't exist for unix sockets, if the socket exists
// (from our previous run), we need to delete it first. Check it's a
// socket so we don't delete wrong files
struct stat st;
if (stat(ptr, &st) == 0) {
if (S_ISSOCK(st.st_mode))
unlink(ptr);
}
if (bind(unixrelays[i], (struct sockaddr *) &sa, sizeof(struct sockaddr_un))) {
ErrorF("Failed to bind unix sock\n");
return 1;
}
return 0;
}
char *extra_headers = NULL;
unsigned extra_headers_len = 0;
static unsigned
add_extra_headers(const char * const arg)
{
unsigned i, found = 0;
const char *sep;
for (i = 0; arg[i]; i++) {
if (arg[i] == '=') {
found++;
sep = &arg[i];
}
}
if (found != 1)
return 0;
const unsigned len = strlen(arg);
if (len < 3)
return 0;
if (arg[0] == '=' || arg[len - 1] == '=')
return 0;
extra_headers = realloc(extra_headers, extra_headers_len + 4 + len);
extra_headers[extra_headers_len] = '\0';
char tmp[len + 3];
const unsigned firstlen = sep - arg;
memcpy(tmp, arg, firstlen);
tmp[firstlen] = ':';
tmp[firstlen + 1] = ' ';
memcpy(&tmp[firstlen + 2], sep + 1, len - firstlen - 1);
tmp[len + 1] = '\r';
tmp[len + 2] = '\n';
memcpy(&extra_headers[extra_headers_len], tmp, len + 3);
extra_headers_len += len + 3;
extra_headers[extra_headers_len] = '\0';
return 1;
}
static void
vncPrintBanner(void)
{
ErrorF("\nXvnc %s%s - built %s\n%s", XVNCVERSION,
sizeof(XVNCEXTRAVERSION) > 2 ? XVNCEXTRAVERSION : "",
buildtime, XVNCCOPYRIGHT);
ErrorF("Underlying X server release %d, %s\n\n", VENDOR_RELEASE,
VENDOR_STRING);
}
static void
vfbInitializePixmapDepths(void)
{
int i;
vfbPixmapDepths[1] = TRUE; /* always need bitmaps */
for (i = 2; i <= 32; i++)
vfbPixmapDepths[i] = FALSE;
}
static void
vfbInitializeDefaultScreens(void)
{
int i;
for (i = 0; i < MAXSCREENS; i++)
{
vfbScreens[i].scrnum = i;
vfbScreens[i].blackPixel = VFB_DEFAULT_BLACKPIXEL;
vfbScreens[i].whitePixel = VFB_DEFAULT_WHITEPIXEL;
vfbScreens[i].lineBias = VFB_DEFAULT_LINEBIAS;
vfbScreens[i].fb.width = VFB_DEFAULT_WIDTH;
vfbScreens[i].fb.height = VFB_DEFAULT_HEIGHT;
vfbScreens[i].fb.pfbMemory = NULL;
vfbScreens[i].fb.depth = VFB_DEFAULT_DEPTH;
vfbScreens[i].pixelFormatDefined = FALSE;
}
vfbNumScreens = 1;
}
static int
vfbBitsPerPixel(int depth)
{
if (depth == 1) return 1;
else if (depth <= 8) return 8;
else if (depth <= 16) return 16;
else return 32;
}
static void vfbFreeFramebufferMemory(vfbFramebufferInfoPtr pfb);
#ifdef DPMSExtension
#if XORG < 120
/* Why support DPMS? Because stupid modern desktop environments
such as Unity 2D on Ubuntu 11.10 crashes if DPMS is not
available. (DPMSSet is called by dpms.c, but the return value
is ignored.) */
int DPMSSet(ClientPtr client, int level)
{
return Success;
}
Bool DPMSSupported(void)
{
/* Causes DPMSCapable to return false, meaning no devices are DPMS
capable */
return FALSE;
}
#endif
#endif
#if XORG < 111
void ddxGiveUp()
#else
void ddxGiveUp(enum ExitCode error)
#endif
{
int i;
/* clean up the framebuffers */
for (i = 0; i < vfbNumScreens; i++)
vfbFreeFramebufferMemory(&vfbScreens[i].fb);
}
void
#if XORG < 111
AbortDDX()
#else
AbortDDX(enum ExitCode error)
#endif
{
#if XORG < 111
ddxGiveUp();
#else
ddxGiveUp(error);
#endif
}
#ifdef __DARWIN__
void
DarwinHandleGUI(int argc, char *argv[])
{
}
void GlxExtensionInit();
void GlxWrapInitVisuals(void *procPtr);
void
DarwinGlxExtensionInit()
{
GlxExtensionInit();
}
void
DarwinGlxWrapInitVisuals(
void *procPtr)
{
GlxWrapInitVisuals(procPtr);
}
#endif
void
OsVendorInit(void)
{
}
void
#if XORG < 113
OsVendorFatalError()
#else
OsVendorFatalError(const char *f, va_list args)
#endif
{
}
#ifdef DDXBEFORERESET
void ddxBeforeReset(void)
{
return;
}
#endif
void ddxUseMsg(void)
{
vncPrintBanner();
ErrorF("-screen scrn WxHxD set screen's width, height, depth\n");
ErrorF("-pixdepths list-of-int support given pixmap depths\n");
#ifdef RENDER
ErrorF("+/-render turn on/off RENDER extension support"
"(default on)\n");
#endif
ErrorF("-linebias n adjust thin line pixelization\n");
ErrorF("-blackpixel n pixel value for black\n");
ErrorF("-whitepixel n pixel value for white\n");
#ifdef HAS_SHM
ErrorF("-shmem put framebuffers in shared memory\n");
#endif
ErrorF("-geometry WxH set screen 0's width, height\n");
ErrorF("-depth D set screen 0's depth\n");
ErrorF("-pixelformat fmt set pixel format (rgbNNN or bgrNNN)\n");
ErrorF("-inetd has been launched from inetd\n");
ErrorF("-http-header name=val append this header to all HTTP responses\n");
ErrorF("-noclipboard disable clipboard settings modification via vncconfig utility\n");
ErrorF("-unixrelay name:path create a local named unix relay socket\n");
ErrorF("-verbose [n] verbose startup messages\n");
ErrorF("-quiet minimal startup messages\n");
ErrorF("-version show the server version\n");
ErrorF("\nVNC parameters:\n");
fprintf(stderr,"\n"
"Parameters can be turned on with -<param> or off with -<param>=0\n"
"Parameters which take a value can be specified as "
"-<param> <value>\n"
"Other valid forms are <param>=<value> -<param>=<value> "
"--<param>=<value>\n"
"Parameter names are case-insensitive. The parameters are:\n\n");
vncListParams(79, 14);
}
static
Bool displayNumFree(int num)
{
char file[256];
if (vncIsTCPPortUsed(6000+num))
return FALSE;
sprintf(file, "/tmp/.X%d-lock", num);
if (access(file, F_OK) == 0)
return FALSE;
sprintf(file, "/tmp/.X11-unix/X%d", num);
if (access(file, F_OK) == 0)
return FALSE;
sprintf(file, "/usr/spool/sockets/X11/%d", num);
if (access(file, F_OK) == 0)
return FALSE;
return TRUE;
}
#define fail_unless_args(_argc,_i,_n) \
if (_i + _n >= _argc) \
{ \
UseMsg(); \
return 0; \
}
int
ddxProcessArgument(int argc, char *argv[], int i)
{
static Bool firstTime = TRUE;
if (firstTime)
{
/* Force -noreset as default until we properly handle resets */
dispatchExceptionAtReset = 0;
vfbInitializeDefaultScreens();
vfbInitializePixmapDepths();
unsigned r;
for (r = 0; r < MAX_UNIX_RELAYS; r++) {
unixrelays[r] = -1;
unixrelaynames[r][0] = '\0';
}
firstTime = FALSE;
vncInitRFB();
}
if (argv[i][0] == ':')
displaySpecified = TRUE;
if (strcmp (argv[i], "-screen") == 0) /* -screen n WxHxD */
{
int screenNum;
fail_unless_args(argc, i, 2);
screenNum = atoi(argv[i+1]);
if (screenNum < 0 || screenNum >= MAXSCREENS)
{
ErrorF("Invalid screen number %d\n", screenNum);
UseMsg();
return 0;
}
if (3 != sscanf(argv[i+2], "%dx%dx%d",
&vfbScreens[screenNum].fb.width,
&vfbScreens[screenNum].fb.height,
&vfbScreens[screenNum].fb.depth))
{
ErrorF("Invalid screen configuration %s\n", argv[i+2]);
UseMsg();
return 0;
}
if (screenNum >= vfbNumScreens)
vfbNumScreens = screenNum + 1;
lastScreen = screenNum;
return 3;
}
if (strcmp (argv[i], "-pixdepths") == 0) /* -pixdepths list-of-depth */
{
int depth, ret = 1;
fail_unless_args(argc, i, 1);
++i;
while ((i < argc) && (depth = atoi(argv[i++])) != 0)
{
if (depth < 0 || depth > 32)
{
ErrorF("Invalid pixmap depth %d\n", depth);
UseMsg();
return 0;
}
vfbPixmapDepths[depth] = TRUE;
ret++;
}
return ret;
}
if (strcmp (argv[i], "+render") == 0) /* +render */
{
Render = TRUE;
return 1;
}
if (strcmp (argv[i], "-render") == 0) /* -render */
{
Render = FALSE;
return 1;
}
if (strcmp (argv[i], "-blackpixel") == 0) /* -blackpixel n */
{
Pixel pix;
fail_unless_args(argc, i, 1);
++i;
pix = atoi(argv[i]);
if (-1 == lastScreen)
{
int j;
for (j = 0; j < MAXSCREENS; j++)
{
vfbScreens[j].blackPixel = pix;
}
}
else
{
vfbScreens[lastScreen].blackPixel = pix;
}
return 2;
}
if (strcmp (argv[i], "-whitepixel") == 0) /* -whitepixel n */
{
Pixel pix;
fail_unless_args(argc, i, 1);
++i;
pix = atoi(argv[i]);
if (-1 == lastScreen)
{
int j;
for (j = 0; j < MAXSCREENS; j++)
{
vfbScreens[j].whitePixel = pix;
}
}
else
{
vfbScreens[lastScreen].whitePixel = pix;
}
return 2;
}
if (strcmp (argv[i], "-linebias") == 0) /* -linebias n */
{
unsigned int linebias;
fail_unless_args(argc, i, 1);
++i;
linebias = atoi(argv[i]);
if (-1 == lastScreen)
{
int j;
for (j = 0; j < MAXSCREENS; j++)
{
vfbScreens[j].lineBias = linebias;
}
}
else
{
vfbScreens[lastScreen].lineBias = linebias;
}
return 2;
}
#ifdef HAS_SHM
if (strcmp (argv[i], "-shmem") == 0) /* -shmem */
{
fbmemtype = SHARED_MEMORY_FB;
return 1;
}
#endif
if (strcmp(argv[i], "-geometry") == 0)
{
fail_unless_args(argc, i, 1);
++i;
if (sscanf(argv[i],"%dx%d",&vfbScreens[0].fb.width,
&vfbScreens[0].fb.height) != 2) {
ErrorF("Invalid geometry %s\n", argv[i]);
UseMsg();
return 0;
}
return 2;
}
if (strcmp(argv[i], "-depth") == 0)
{
fail_unless_args(argc, i, 1);
++i;
vfbScreens[0].fb.depth = atoi(argv[i]);
return 2;
}
if (strcmp(argv[i], "-http-header") == 0)
{
fail_unless_args(argc, i, 1);
++i;
if (!add_extra_headers(argv[i])) {
ErrorF("Invalid argument\n");
return 0;
}
return 2;
}
if (strcmp(argv[i], "-pixelformat") == 0)
{
char rgbbgr[4];
int bits1, bits2, bits3;
fail_unless_args(argc, i, 1);
++i;
if (sscanf(argv[i], "%3s%1d%1d%1d", rgbbgr,&bits1,&bits2,&bits3) < 4) {
ErrorF("Invalid pixel format %s\n", argv[i]);
UseMsg();
return 0;
}
#define SET_PIXEL_FORMAT(vfbScreen) \
(vfbScreen).pixelFormatDefined = TRUE; \
(vfbScreen).fb.depth = bits1 + bits2 + bits3; \
(vfbScreen).greenBits = bits2; \
if (strcasecmp(rgbbgr, "bgr") == 0) { \
(vfbScreen).rgbNotBgr = FALSE; \
(vfbScreen).redBits = bits3; \
(vfbScreen).blueBits = bits1; \
} else if (strcasecmp(rgbbgr, "rgb") == 0) { \
(vfbScreen).rgbNotBgr = TRUE; \
(vfbScreen).redBits = bits1; \
(vfbScreen).blueBits = bits3; \
} else { \
ErrorF("Invalid pixel format %s\n", argv[i]); \
UseMsg(); \
return 0; \
}
if (-1 == lastScreen)
{
int j;
for (j = 0; j < MAXSCREENS; j++)
{
SET_PIXEL_FORMAT(vfbScreens[j]);
}
}
else
{
SET_PIXEL_FORMAT(vfbScreens[lastScreen]);
}
return 2;
}
if (strcmp(argv[i], "-inetd") == 0)
{
int nullfd;
dup2(0,3);
vncInetdSock = 3;
/* Avoid xserver >= 1.19's epoll-fd becoming fd 2 / stderr only to be
replaced by /dev/null by OsInit() because the pollfd is not
writable, breaking ospoll_wait(). */
nullfd = open("/dev/null", O_WRONLY);
dup2(nullfd, 2);
close(nullfd);
if (!displaySpecified) {
int port = vncGetSocketPort(vncInetdSock);
int displayNum = port - 5900;
if (displayNum < 0 || displayNum > 99 || !displayNumFree(displayNum)) {
for (displayNum = 1; displayNum < 100; displayNum++)
if (displayNumFree(displayNum)) break;
if (displayNum == 100)
FatalError("Xvnc error: no free display number for -inetd\n");
}
display = displayNumStr;
sprintf(displayNumStr, "%d", displayNum);
}
return 1;
}
if (strcmp(argv[i], "-noclipboard") == 0) {
vncNoClipboard = 1;
return 1;
}
if (strcasecmp(argv[i], "-unixrelay") == 0)
{
fail_unless_args(argc, i, 1);
++i;
if (addrelay(argv[i]))
return 0;
return 2;
}
if (!strcmp(argv[i], "-verbose")) {
if (++i < argc && argv[i]) {
char *end;
long val;
val = strtol(argv[i], &end, 0);
if (*end == '\0') {
vncVerbose = val;
LogSetParameter(XLOG_VERBOSITY, vncVerbose);
return 2;
}
}
vncVerbose++;
LogSetParameter(XLOG_VERBOSITY, vncVerbose);
return 1;
}
if (!strcmp(argv[i], "-quiet")) {
vncVerbose = -1;
LogSetParameter(XLOG_VERBOSITY, vncVerbose);
return 1;
}
if (!strcmp(argv[i], "-showconfig") || !strcmp(argv[i], "-version")) {
vncPrintBanner();
exit(0);
}
/* We need to resolve an ambiguity for booleans */
if (argv[i][0] == '-' && i+1 < argc &&
vncIsParamBool(&argv[i][1])) {
if ((strcasecmp(argv[i+1], "0") == 0) ||
(strcasecmp(argv[i+1], "1") == 0) ||
(strcasecmp(argv[i+1], "true") == 0) ||
(strcasecmp(argv[i+1], "false") == 0) ||
(strcasecmp(argv[i+1], "yes") == 0) ||
(strcasecmp(argv[i+1], "no") == 0)) {
vncSetParam(&argv[i][1], argv[i+1]);
return 2;
}
}
if (vncSetParamSimple(argv[i]))
return 1;
if (argv[i][0] == '-' && i+1 < argc) {
if (vncSetParam(&argv[i][1], argv[i+1]))
return 2;
}
return 0;
}
#ifdef DDXTIME /* from ServerOSDefines */
CARD32
GetTimeInMillis()
{
struct timeval tp;
X_GETTIMEOFDAY(&tp);
return(tp.tv_sec * 1000) + (tp.tv_usec / 1000);
}
#endif
#if XORG < 113
static ColormapPtr InstalledMaps[MAXSCREENS];
#else
static DevPrivateKeyRec cmapScrPrivateKeyRec;
#define cmapScrPrivateKey (&cmapScrPrivateKeyRec)
#define GetInstalledColormap(s) ((ColormapPtr) dixLookupPrivate(&(s)->devPrivates, cmapScrPrivateKey))
#define SetInstalledColormap(s,c) (dixSetPrivate(&(s)->devPrivates, cmapScrPrivateKey, c))
#endif
static int
vfbListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
{
/* By the time we are processing requests, we can guarantee that there
* is always a colormap installed */
#if XORG < 113
*pmaps = InstalledMaps[pScreen->myNum]->mid;
#else
*pmaps = GetInstalledColormap(pScreen)->mid;
#endif
return (1);
}
static void
vfbInstallColormap(ColormapPtr pmap)
{
#if XORG < 113
int index = pmap->pScreen->myNum;
#endif
ColormapPtr oldpmap;
#if XORG < 113
oldpmap = InstalledMaps[index];
#else
oldpmap = GetInstalledColormap(pmap->pScreen);
#endif
if (pmap != oldpmap)
{
int entries;
VisualPtr pVisual;
Pixel * ppix;
xrgb * prgb;
xColorItem *defs;
int i;
if(oldpmap != (ColormapPtr)None)
WalkTree(pmap->pScreen, TellLostMap, (char *)&oldpmap->mid);
/* Install pmap */
#if XORG < 113
InstalledMaps[index] = pmap;
#else
SetInstalledColormap(pmap->pScreen, pmap);
#endif
WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
entries = pmap->pVisual->ColormapEntries;
pVisual = pmap->pVisual;
ppix = (Pixel *)calloc(entries, sizeof(Pixel));
prgb = (xrgb *)calloc(entries, sizeof(xrgb));
defs = (xColorItem *)calloc(entries, sizeof(xColorItem));
if (!ppix || !prgb || !defs)
FatalError ("Not enough memory for color map\n");
for (i = 0; i < entries; i++) ppix[i] = i;
/* XXX truecolor */
#if XORG < 19
QueryColors(pmap, entries, ppix, prgb);
#else
QueryColors(pmap, entries, ppix, prgb, serverClient);
#endif
for (i = 0; i < entries; i++) { /* convert xrgbs to xColorItems */
defs[i].pixel = ppix[i] & 0xff; /* change pixel to index */
defs[i].red = prgb[i].red;
defs[i].green = prgb[i].green;
defs[i].blue = prgb[i].blue;
defs[i].flags = DoRed|DoGreen|DoBlue;
}
(*pmap->pScreen->StoreColors)(pmap, entries, defs);
free(ppix);
free(prgb);
free(defs);
}
}
static void
vfbUninstallColormap(ColormapPtr pmap)
{
#if XORG < 113
ColormapPtr curpmap = InstalledMaps[pmap->pScreen->myNum];
#else
ColormapPtr curpmap = GetInstalledColormap(pmap->pScreen);
#endif
if(pmap == curpmap)
{
if (pmap->mid != pmap->pScreen->defColormap)
{
#if XORG < 111
curpmap = (ColormapPtr) LookupIDByType(pmap->pScreen->defColormap,
RT_COLORMAP);
#else
dixLookupResourceByType((void * *) &curpmap, pmap->pScreen->defColormap,
RT_COLORMAP, serverClient, DixUnknownAccess);
#endif
(*pmap->pScreen->InstallColormap)(curpmap);
}
}
}
static Bool
vfbSaveScreen(ScreenPtr pScreen, int on)
{
return TRUE;
}
#ifdef HAS_SHM
static void
vfbAllocateSharedMemoryFramebuffer(vfbFramebufferInfoPtr pfb)
{
/* create the shared memory segment */
pfb->shmid = shmget(IPC_PRIVATE, pfb->sizeInBytes, IPC_CREAT|0777);
if (pfb->shmid < 0) {
perror("shmget");
ErrorF("shmget %d bytes failed, errno %d", pfb->sizeInBytes, errno);
return;
}
/* try to attach it */
pfb->pfbMemory = shmat(pfb->shmid, 0, 0);
if (-1 == (long)pfb->pfbMemory) {
perror("shmat");
ErrorF("shmat failed, errno %d", errno);
pfb->pfbMemory = NULL;
return;
}
}
#endif /* HAS_SHM */
static void *
vfbAllocateFramebufferMemory(vfbFramebufferInfoPtr pfb)
{
if (pfb->pfbMemory != NULL)
return pfb->pfbMemory; /* already done */
/* Compute memory layout */
pfb->paddedBytesWidth = PixmapBytePad(pfb->width, pfb->depth);
pfb->bitsPerPixel = vfbBitsPerPixel(pfb->depth);
pfb->paddedWidth = pfb->paddedBytesWidth * 8 / pfb->bitsPerPixel;
pfb->sizeInBytes = pfb->paddedBytesWidth * pfb->height;
/* And allocate buffer */
switch (fbmemtype) {
#ifdef HAS_SHM
case SHARED_MEMORY_FB:
vfbAllocateSharedMemoryFramebuffer(pfb);
break;
#else
case SHARED_MEMORY_FB:
break;
#endif
case NORMAL_MEMORY_FB:
pfb->pfbMemory = malloc(pfb->sizeInBytes);
break;
}
/* This will be NULL if any of the above failed */
return pfb->pfbMemory;
}
static void
vfbFreeFramebufferMemory(vfbFramebufferInfoPtr pfb)
{
if ((pfb == NULL) || (pfb->pfbMemory == NULL))
return;
switch (fbmemtype) {
#ifdef HAS_SHM
case SHARED_MEMORY_FB:
if (-1 == shmdt(pfb->pfbMemory)) {
perror("shmdt");
ErrorF("shmdt failed, errno %d", errno);
}
break;
#else /* HAS_SHM */
case SHARED_MEMORY_FB:
break;
#endif /* HAS_SHM */
case NORMAL_MEMORY_FB:
free(pfb->pfbMemory);
break;
}
pfb->pfbMemory = NULL;
}
static Bool
vfbCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y)
{
int absX, absY;
int i;
if (screenInfo.numScreens == 1)
return FALSE;
if ((*x >= 0) && (*x < (*ppScreen)->width) &&
(*y >= 0) && (*y < (*ppScreen)->height))
return FALSE;
absX = *x + (*ppScreen)->x;
absY = *y + (*ppScreen)->y;
for (i = 0;i < screenInfo.numScreens;i++) {
ScreenPtr newScreen;
newScreen = screenInfo.screens[i];
if (absX < newScreen->x)
continue;
if (absY < newScreen->y)
continue;
if (absX >= (newScreen->x + newScreen->width))
continue;
if (absY >= (newScreen->y + newScreen->height))
continue;
*ppScreen = newScreen;
*x = absX - newScreen->x;
*y = absY - newScreen->y;
return TRUE;
}
return FALSE;
}
static void
vfbCrossScreen (ScreenPtr pScreen, Bool entering)
{
}
static Bool vfbRealizeCursor(DeviceIntPtr pDev,
ScreenPtr pScreen, CursorPtr pCursor)
{
return TRUE;
}
static Bool vfbUnrealizeCursor(DeviceIntPtr pDev,
ScreenPtr pScreen, CursorPtr pCursor)
{
return TRUE;
}
static void vfbSetCursor(DeviceIntPtr pDev,
ScreenPtr pScreen, CursorPtr pCursor, int x, int y)
{
}
static void vfbMoveCursor(DeviceIntPtr pDev,
ScreenPtr pScreen, int x, int y)
{
}
static Bool
vfbDeviceCursorInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
{
return TRUE;
}
static void
vfbDeviceCursorCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
{
}
static miPointerSpriteFuncRec vfbPointerSpriteFuncs = {
vfbRealizeCursor,
vfbUnrealizeCursor,
vfbSetCursor,
vfbMoveCursor,
vfbDeviceCursorInitialize,
vfbDeviceCursorCleanup
};
static miPointerScreenFuncRec vfbPointerCursorFuncs = {
vfbCursorOffScreen,
vfbCrossScreen,
miPointerWarpCursor
};
static Bool vncRandRGetInfo (ScreenPtr pScreen, Rotation *rotations)
{
// We update all information right away, so there is nothing to
// do here.
return TRUE;
}
/* from hw/xfree86/common/xf86Helper.c */
#include "mivalidate.h"
static void
xf86SetRootClip (ScreenPtr pScreen, Bool enable)
{
#if XORG < 19
WindowPtr pWin = WindowTable[pScreen->myNum];
#else
WindowPtr pWin = pScreen->root;
#endif
WindowPtr pChild;
Bool WasViewable = (Bool)(pWin->viewable);
Bool anyMarked = FALSE;
#if XORG < 110
RegionPtr pOldClip = NULL, bsExposed;
#ifdef DO_SAVE_UNDERS
Bool dosave = FALSE;
#endif
#endif
WindowPtr pLayerWin;
BoxRec box;
if (WasViewable)
{
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
{
(void) (*pScreen->MarkOverlappedWindows)(pChild,
pChild,
&pLayerWin);
}
(*pScreen->MarkWindow) (pWin);
anyMarked = TRUE;
if (pWin->valdata)
{
if (HasBorder (pWin))
{
RegionPtr borderVisible;
borderVisible = RegionCreate(NullBox, 1);
RegionSubtract(borderVisible,
&pWin->borderClip, &pWin->winSize);
pWin->valdata->before.borderVisible = borderVisible;
}
pWin->valdata->before.resized = TRUE;
}
}
/*
* Use RegionBreak to avoid optimizations in ValidateTree
* that assume the root borderClip can't change well, normally
* it doesn't...)
*/
if (enable)
{
box.x1 = 0;
box.y1 = 0;
box.x2 = pScreen->width;
box.y2 = pScreen->height;
RegionInit(&pWin->winSize, &box, 1);
RegionInit(&pWin->borderSize, &box, 1);
if (WasViewable)
RegionReset(&pWin->borderClip, &box);
pWin->drawable.width = pScreen->width;
pWin->drawable.height = pScreen->height;
RegionBreak(&pWin->clipList);
}
else
{
RegionEmpty(&pWin->borderClip);
RegionBreak(&pWin->clipList);
}
ResizeChildrenWinSize (pWin, 0, 0, 0, 0);
if (WasViewable)
{
#if XORG < 110
if (pWin->backStorage)
{
pOldClip = REGION_CREATE(pScreen, NullBox, 1);
REGION_COPY(pScreen, pOldClip, &pWin->clipList);
}
#endif
if (pWin->firstChild)
{
anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin->firstChild,
pWin->firstChild,
(WindowPtr *)NULL);
}
else
{
(*pScreen->MarkWindow) (pWin);
anyMarked = TRUE;
}
#if XORG < 110 && defined(DO_SAVE_UNDERS)
if (DO_SAVE_UNDERS(pWin))
{
dosave = (*pScreen->ChangeSaveUnder)(pLayerWin, pLayerWin);
}
#endif /* DO_SAVE_UNDERS */
if (anyMarked)
(*pScreen->ValidateTree)(pWin, NullWindow, VTOther);
}
#if XORG < 110
if (pWin->backStorage &&
((pWin->backingStore == Always) || WasViewable))
{
if (!WasViewable)
pOldClip = &pWin->clipList; /* a convenient empty region */
bsExposed = (*pScreen->TranslateBackingStore)
(pWin, 0, 0, pOldClip,
pWin->drawable.x, pWin->drawable.y);
if (WasViewable)
REGION_DESTROY(pScreen, pOldClip);
if (bsExposed)
{
RegionPtr valExposed = NullRegion;
if (pWin->valdata)
valExposed = &pWin->valdata->after.exposed;
(*pScreen->WindowExposures) (pWin, valExposed, bsExposed);
if (valExposed)
REGION_EMPTY(pScreen, valExposed);
REGION_DESTROY(pScreen, bsExposed);
}
}
#endif
if (WasViewable)
{
if (anyMarked)
(*pScreen->HandleExposures)(pWin);
#if XORG < 110 && defined(DO_SAVE_UNDERS)
if (dosave)
(*pScreen->PostChangeSaveUnder)(pLayerWin, pLayerWin);
#endif /* DO_SAVE_UNDERS */
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree)(pWin, NullWindow, VTOther);
}
if (pWin->realized)
WindowsRestructured ();
FlushAllOutput ();
}
static Bool vncRandRCrtcSet(ScreenPtr pScreen, RRCrtcPtr crtc, RRModePtr mode,
int x, int y, Rotation rotation, int num_outputs,
RROutputPtr *outputs);
static RRModePtr vncRandRModeGet(int width, int height);
static Bool vncRandRScreenSetSize(ScreenPtr pScreen,
CARD16 width, CARD16 height,
CARD32 mmWidth, CARD32 mmHeight)
{
vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
vfbFramebufferInfo fb;
rrScrPrivPtr rp = rrGetScrPriv(pScreen);
PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
void *pbits;
Bool ret;
int oldwidth, oldheight, oldmmWidth, oldmmHeight;
/* Prevent updates while we fiddle */
xf86SetRootClip(pScreen, FALSE);
/* Store current state in case we fail */
oldwidth = pScreen->width;
oldheight = pScreen->height;
oldmmWidth = pScreen->mmWidth;
oldmmHeight = pScreen->mmHeight;
/* Then set the new dimensions */
pScreen->width = width;
pScreen->height = height;
pScreen->mmWidth = mmWidth;
pScreen->mmHeight = mmHeight;
/* Allocate a new framebuffer */
memset(&fb, 0, sizeof(vfbFramebufferInfo));
fb.width = pScreen->width;
fb.height = pScreen->height;
fb.depth = pvfb->fb.depth;
pbits = vfbAllocateFramebufferMemory(&fb);
if (!pbits) {
/* Allocation failed. Restore old state */
pScreen->width = oldwidth;
pScreen->height = oldheight;
pScreen->mmWidth = oldmmWidth;
pScreen->mmHeight = oldmmHeight;
xf86SetRootClip(pScreen, TRUE);
return FALSE;
}
/* Update root pixmap with the new dimensions and buffer */
ret = pScreen->ModifyPixmapHeader(rootPixmap, fb.width, fb.height,
-1, -1, fb.paddedBytesWidth, pbits);
if (!ret) {
/* Update failed. Free the new framebuffer and restore old state */
vfbFreeFramebufferMemory(&fb);
pScreen->width = oldwidth;
pScreen->height = oldheight;
pScreen->mmWidth = oldmmWidth;
pScreen->mmHeight = oldmmHeight;
xf86SetRootClip(pScreen, TRUE);
return FALSE;
}
/* Free the old framebuffer and keep the info about the new one */
vfbFreeFramebufferMemory(&pvfb->fb);
memcpy(&pvfb->fb, &fb, sizeof(vfbFramebufferInfo));
/* Let VNC get the new framebuffer (actual update is in vncHooks.cc) */
vncFbptr[pScreen->myNum] = pbits;
vncFbstride[pScreen->myNum] = fb.paddedWidth;
/* Restore ability to update screen, now with new dimensions */
xf86SetRootClip(pScreen, TRUE);
/*
* Let RandR know we changed something (it doesn't assume that
* TRUE means something changed for some reason...).
*/
RRScreenSizeNotify(pScreen);
/* Crop all CRTCs to the new screen */
for (int i = 0;i < rp->numCrtcs;i++) {
RRCrtcPtr crtc;
RRModePtr mode;
crtc = rp->crtcs[i];
/* Disabled? */
if (crtc->mode == NULL)
continue;
/* Fully inside? */
if ((crtc->x + crtc->mode->mode.width <= width) &&
(crtc->y + crtc->mode->mode.height <= height))
continue;
/* Fully outside? */
if ((crtc->x >= width) || (crtc->y >= height)) {
/* Disable it */
ret = vncRandRCrtcSet(pScreen, crtc, NULL,
crtc->x, crtc->y, crtc->rotation, 0, NULL);
if (!ret)
ErrorF("Warning: Unable to disable CRTC that is outside of new screen dimensions");
continue;
}
/* Just needs to be resized to a temporary mode */
mode = vncRandRModeGet(width - crtc->x, height - crtc->y);
if (mode == NULL) {
ErrorF("Warning: Unable to create custom mode for %dx%d",
width - crtc->x, height - crtc->y);
continue;
}
ret = vncRandRCrtcSet(pScreen, crtc, mode,
crtc->x, crtc->y, crtc->rotation,
crtc->numOutputs, crtc->outputs);
RRModeDestroy(mode);
if (!ret)
ErrorF("Warning: Unable to crop CRTC to new screen dimensions");
}
return TRUE;
}
static Bool vncRandRCrtcSet(ScreenPtr pScreen, RRCrtcPtr crtc, RRModePtr mode,
int x, int y, Rotation rotation, int num_outputs,
RROutputPtr *outputs)
{
Bool ret;
int i;
/*
* Some applications get confused by a connected output without a
* mode or CRTC, so we need to fiddle with the connection state as well.
*/
for (i = 0;i < crtc->numOutputs;i++)
RROutputSetConnection(crtc->outputs[i], RR_Disconnected);
for (i = 0;i < num_outputs;i++) {
if (mode != NULL)
RROutputSetConnection(outputs[i], RR_Connected);
else
RROutputSetConnection(outputs[i], RR_Disconnected);
}
/* Let RandR know we approve, and let it update its internal state */
ret = RRCrtcNotify(crtc, mode, x, y, rotation, NULL, num_outputs, outputs);
if (!ret)
return FALSE;
return TRUE;
}
static Bool vncRandROutputValidateMode(ScreenPtr pScreen,
RROutputPtr output, RRModePtr mode)
{
/* We have no hardware so any mode works */
return TRUE;
}
static void vncRandRModeDestroy(ScreenPtr pScreen, RRModePtr mode)
{
/* We haven't allocated anything so nothing to destroy */
}
static const int vncRandRWidths[] = { 1920, 1920, 1600, 1680, 1400, 1360, 1280, 1280, 1280, 1280, 1024, 800, 640 };
static const int vncRandRHeights[] = { 1200, 1080, 1200, 1050, 1050, 768, 1024, 960, 800, 720, 768, 600, 480 };
static int vncRandRIndex = 0;
static RRModePtr vncRandRModeGet(int width, int height)
{
xRRModeInfo modeInfo;
char name[100];
RRModePtr mode;
memset(&modeInfo, 0, sizeof(modeInfo));
sprintf(name, "%dx%d", width, height);
modeInfo.width = width;
modeInfo.height = height;
modeInfo.hTotal = width;
modeInfo.vTotal = height;
modeInfo.dotClock = ((CARD32)width * (CARD32)height * 60);
modeInfo.nameLength = strlen(name);
mode = RRModeGet(&modeInfo, name);
if (mode == NULL)
return NULL;
return mode;
}
static void vncRandRSetModes(RROutputPtr output, int pref_width, int pref_height)
{
RRModePtr mode;
RRModePtr *modes;
int i, num_modes, num_pref;
num_modes = sizeof(vncRandRWidths)/sizeof(*vncRandRWidths) + 1;
modes = malloc(sizeof(RRModePtr)*num_modes);
if (modes == NULL)
return;
num_modes = 0;
num_pref = 0;
if ((pref_width > 0) && (pref_height > 0)) {
mode = vncRandRModeGet(pref_width, pref_height);
if (mode != NULL) {
modes[num_modes] = mode;
num_modes++;
num_pref++;
}
}
for (i = 0;i < sizeof(vncRandRWidths)/sizeof(*vncRandRWidths);i++) {
if ((vncRandRWidths[i] == pref_width) &&
(vncRandRHeights[i] == pref_height))
continue;
mode = vncRandRModeGet(vncRandRWidths[i], vncRandRHeights[i]);
if (mode != NULL) {
modes[num_modes] = mode;
num_modes++;
}
}
RROutputSetModes(output, modes, num_modes, num_pref);
free(modes);
}
static RRCrtcPtr vncRandRCrtcCreate(ScreenPtr pScreen)
{
RRCrtcPtr crtc;
RROutputPtr output;
char name[100];
/* First we create the CRTC... */
crtc = RRCrtcCreate(pScreen, NULL);
/* We don't actually support gamma, but xrandr complains when it is missing */
RRCrtcGammaSetSize (crtc, 256);
/* Then we create a dummy output for it... */
sprintf(name, "VNC-%d", vncRandRIndex);
vncRandRIndex++;
output = RROutputCreate(pScreen, name, strlen(name), NULL);
RROutputSetCrtcs(output, &crtc, 1);
RROutputSetConnection(output, RR_Disconnected);
/* Make sure the CRTC has this output set */
vncRandRCrtcSet(pScreen, crtc, NULL, 0, 0, RR_Rotate_0, 1, &output);
/* Populate a list of default modes */
vncRandRSetModes(output, -1, -1);
return crtc;
}
/* Used from XserverDesktop when it needs more outputs... */
int vncRandRCanCreateScreenOutputs(int scrIdx, int extraOutputs)
{
return 1;
}
int vncRandRCreateScreenOutputs(int scrIdx, int extraOutputs)
{
RRCrtcPtr crtc;
while (extraOutputs > 0) {
crtc = vncRandRCrtcCreate(screenInfo.screens[scrIdx]);
if (crtc == NULL)
return 0;
extraOutputs--;
}
return 1;
}
/* Creating and modifying modes, used by XserverDesktop and init here */
int vncRandRCanCreateModes()
{
return 1;
}
void* vncRandRCreateMode(void* out, int width, int height)
{
RROutputPtr output;
output = out;
/* Do we already have the mode? */
for (int i = 0; i < output->numModes; i++) {
if ((output->modes[i]->mode.width == width) &&
(output->modes[i]->mode.height == height))
return output->modes[i];
}
/* Just recreate the entire list */
vncRandRSetModes(output, width, height);
/* Find the new mode */
for (int i = 0; i < output->numModes; i++) {
if ((output->modes[i]->mode.width == width) &&
(output->modes[i]->mode.height == height))
return output->modes[i];
}
/* Something went horribly wrong */
return NULL;
}
void* vncRandRSetPreferredMode(void* out, void* m)
{
RRModePtr mode;
RROutputPtr output;
int width, height;
mode = m;
output = out;
width = mode->mode.width;
height = mode->mode.height;
/* Already the preferred mode? */
if ((output->numModes >= 1) && (output->numPreferred == 1) &&
(output->modes[0] == mode))
return mode;
/* Recreate the list, with the mode we want as preferred */
vncRandRSetModes(output, width, height);
/* Sanity check */
if ((output->numModes >= 1) && (output->numPreferred == 1) &&
(output->modes[0]->mode.width == width) &&
(output->modes[0]->mode.height == height))
return output->modes[0];
/* Something went horribly wrong */
return NULL;
}
static Bool vncRandRInit(ScreenPtr pScreen)
{
RRCrtcPtr crtc;
RRModePtr mode;
Bool ret;
if (!RRInit())
return FALSE;
/* These are completely arbitrary */
RRScreenSetSizeRange(pScreen, 32, 32, 32768, 32768);
/*
* Start with a single CRTC with a single output. More will be
* allocated as needed...
*/
crtc = vncRandRCrtcCreate(pScreen);
/* Make sure the current screen size is the active mode */
mode = vncRandRCreateMode(crtc->outputs[0],
pScreen->width, pScreen->height);
if (mode == NULL)
return FALSE;
mode = vncRandRSetPreferredMode(crtc->outputs[0], mode);
if (mode == NULL)
return FALSE;
ret = vncRandRCrtcSet(pScreen, crtc, mode, 0, 0, RR_Rotate_0,
crtc->numOutputs, crtc->outputs);
if (!ret)
return FALSE;
return TRUE;
}
static Bool
#if XORG < 113
vfbCloseScreen(int index, ScreenPtr pScreen)
#else
vfbCloseScreen(ScreenPtr pScreen)
#endif
{
#if XORG < 113
vfbScreenInfoPtr pvfb = &vfbScreens[index];
#else
vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
#endif
int i;
pScreen->CloseScreen = pvfb->closeScreen;
/*
* XXX probably lots of stuff to clean. For now,
* clear installed colormaps so that server reset works correctly.
*/
#if XORG < 113
for (i = 0; i < MAXSCREENS; i++)
InstalledMaps[i] = NULL;
return pScreen->CloseScreen(index, pScreen);
#else
for (i = 0; i < screenInfo.numScreens; i++)
SetInstalledColormap(screenInfo.screens[i], NULL);
/*
* fb overwrites miCloseScreen, so do this here
*/
if (pScreen->devPrivate)
(*pScreen->DestroyPixmap) ((PixmapPtr) pScreen->devPrivate);
pScreen->devPrivate = NULL;
return pScreen->CloseScreen(pScreen);
#endif
}
static Bool
#if XORG < 113
vfbScreenInit(int index, ScreenPtr pScreen, int argc, char **argv)
#else
vfbScreenInit(ScreenPtr pScreen, int argc, char **argv)
#endif
{
#if XORG >= 113
int index = pScreen->myNum;
#endif
vfbScreenInfoPtr pvfb = &vfbScreens[index];
int dpi;
int ret;
void *pbits;
rrScrPrivPtr rp;
#if XORG >= 113
if (!dixRegisterPrivateKey(&cmapScrPrivateKeyRec, PRIVATE_SCREEN, 0))
return FALSE;
#endif
/* 96 is the default used by most other systems */
dpi = 96;
if (monitorResolution)
dpi = monitorResolution;
pbits = vfbAllocateFramebufferMemory(&pvfb->fb);
if (!pbits) return FALSE;
vncFbptr[index] = pbits;
vncFbstride[index] = pvfb->fb.paddedWidth;
miSetPixmapDepths();
switch (pvfb->fb.depth) {
case 16:
miSetVisualTypesAndMasks (16,
((1 << TrueColor) |
(1 << DirectColor)),
8, TrueColor, 0xf800, 0x07e0, 0x001f);
break;
case 24:
miSetVisualTypesAndMasks (24,
((1 << TrueColor) |
(1 << DirectColor)),
8, TrueColor, 0xff0000, 0x00ff00, 0x0000ff);
break;
case 32:
miSetVisualTypesAndMasks (32,
((1 << TrueColor) |
(1 << DirectColor)),
8, TrueColor, 0xff000000, 0x00ff0000, 0x0000ff00);
break;
default:
return FALSE;
}
if (index > 0) {
ScreenPtr prevScreen = screenInfo.screens[index-1];
pScreen->x = prevScreen->x + prevScreen->width;
pScreen->y = 0;
}
ret = fbScreenInit(pScreen, pbits, pvfb->fb.width, pvfb->fb.height,
dpi, dpi, pvfb->fb.paddedWidth, pvfb->fb.bitsPerPixel);
#ifdef RENDER
if (ret && Render)
ret = fbPictureInit (pScreen, 0, 0);
#endif
if (!ret) return FALSE;
#if XORG < 110
miInitializeBackingStore(pScreen);
#endif
/*
* Circumvent the backing store that was just initialised. This amounts
* to a truely bizarre way of initialising SaveDoomedAreas and friends.
*/
pScreen->InstallColormap = vfbInstallColormap;
pScreen->UninstallColormap = vfbUninstallColormap;
pScreen->ListInstalledColormaps = vfbListInstalledColormaps;
pScreen->SaveScreen = vfbSaveScreen;
miPointerInitialize(pScreen, &vfbPointerSpriteFuncs, &vfbPointerCursorFuncs,
FALSE);
pScreen->blackPixel = pvfb->blackPixel;
pScreen->whitePixel = pvfb->whitePixel;
if (!pvfb->pixelFormatDefined) {
switch (pvfb->fb.depth) {
case 16:
pvfb->pixelFormatDefined = TRUE;
pvfb->rgbNotBgr = TRUE;
pvfb->blueBits = pvfb->redBits = 5;
pvfb->greenBits = 6;
break;
case 24:
case 32:
pvfb->pixelFormatDefined = TRUE;
pvfb->rgbNotBgr = TRUE;
pvfb->blueBits = pvfb->redBits = pvfb->greenBits = 8;
break;
}
}
if (pvfb->pixelFormatDefined) {
VisualPtr vis = pScreen->visuals;
for (int i = 0; i < pScreen->numVisuals; i++) {
if (pvfb->rgbNotBgr) {
vis->offsetBlue = 0;
vis->blueMask = (1 << pvfb->blueBits) - 1;
vis->offsetGreen = pvfb->blueBits;
vis->greenMask = ((1 << pvfb->greenBits) - 1) << vis->offsetGreen;
vis->offsetRed = vis->offsetGreen + pvfb->greenBits;
vis->redMask = ((1 << pvfb->redBits) - 1) << vis->offsetRed;
} else {
vis->offsetRed = 0;
vis->redMask = (1 << pvfb->redBits) - 1;
vis->offsetGreen = pvfb->redBits;
vis->greenMask = ((1 << pvfb->greenBits) - 1) << vis->offsetGreen;
vis->offsetBlue = vis->offsetGreen + pvfb->greenBits;
vis->blueMask = ((1 << pvfb->blueBits) - 1) << vis->offsetBlue;
}
vis++;
}
}
ret = fbCreateDefColormap(pScreen);
if (!ret) return FALSE;
miSetZeroLineBias(pScreen, pvfb->lineBias);
pvfb->closeScreen = pScreen->CloseScreen;
pScreen->CloseScreen = vfbCloseScreen;
ret = RRScreenInit(pScreen);
if (!ret) return FALSE;
rp = rrGetScrPriv(pScreen);
rp->rrGetInfo = vncRandRGetInfo;
rp->rrSetConfig = NULL;
rp->rrScreenSetSize = vncRandRScreenSetSize;
rp->rrCrtcSet = vncRandRCrtcSet;
rp->rrOutputValidateMode = vncRandROutputValidateMode;
rp->rrModeDestroy = vncRandRModeDestroy;
ret = vncRandRInit(pScreen);
if (!ret) return FALSE;
return TRUE;
} /* end vfbScreenInit */
static void vfbClientStateChange(CallbackListPtr *a, void *b, void *c) {
if (dispatchException & DE_RESET) {
ErrorF("Warning: VNC extension does not support -reset, terminating instead. Use -noreset to prevent termination.\n");
dispatchException |= DE_TERMINATE;
dispatchException &= ~DE_RESET;
}
}
#if XORG >= 113
#ifdef GLXEXT
extern void GlxExtensionInit(void);
static ExtensionModule glxExt = {
GlxExtensionInit,
"GLX",
&noGlxExtension
};
#endif
#endif
void
InitOutput(ScreenInfo *scrInfo, int argc, char **argv)
{
int i;
int NumFormats = 0;
vncPrintBanner();
#if XORG >= 120
xorgGlxCreateVendor();
#else
#if XORG >= 113
#ifdef GLXEXT
if (serverGeneration == 1)
#if XORG >= 116
LoadExtensionList(&glxExt, 1, TRUE);
#else
LoadExtension(&glxExt, TRUE);
#endif
#endif
#endif
#endif
/* initialize pixmap formats */
/* must have a pixmap depth to match every screen depth */
for (i = 0; i < vfbNumScreens; i++)
{
vfbPixmapDepths[vfbScreens[i].fb.depth] = TRUE;
}
/* RENDER needs a good set of pixmaps. */
if (Render) {
vfbPixmapDepths[1] = TRUE;
vfbPixmapDepths[4] = TRUE;
vfbPixmapDepths[8] = TRUE;
/* vfbPixmapDepths[15] = TRUE; */
vfbPixmapDepths[16] = TRUE;
vfbPixmapDepths[24] = TRUE;
vfbPixmapDepths[32] = TRUE;
}
for (i = 1; i <= 32; i++)
{
if (vfbPixmapDepths[i])
{
if (NumFormats >= MAXFORMATS)
FatalError ("MAXFORMATS is too small for this server\n");
scrInfo->formats[NumFormats].depth = i;
scrInfo->formats[NumFormats].bitsPerPixel = vfbBitsPerPixel(i);
scrInfo->formats[NumFormats].scanlinePad = BITMAP_SCANLINE_PAD;
NumFormats++;
}
}
scrInfo->imageByteOrder = IMAGE_BYTE_ORDER;
scrInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
scrInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
scrInfo->bitmapBitOrder = BITMAP_BIT_ORDER;
scrInfo->numPixmapFormats = NumFormats;
/* initialize screens */
for (i = 0; i < vfbNumScreens; i++)
{
if (-1 == AddScreen(vfbScreenInit, argc, argv))
{
FatalError("Couldn't add screen %d\n", i);
}
}
if (!AddCallback(&ClientStateCallback, vfbClientStateChange, 0)) {
FatalError("AddCallback failed\n");
}
} /* end InitOutput */
/* this is just to get the server to link on AIX */
#ifdef AIXV3
int SelectWaitTime = 10000; /* usec */
#endif
void DDXRingBell(int percent, int pitch, int duration)
{
if (percent > 0)
vncBell();
}
Bool LegalModifier(unsigned int key, DeviceIntPtr pDev)
{
return TRUE;
}
void ProcessInputEvents(void)
{
mieqProcessInputEvents();
}
void InitInput(int argc, char *argv[])
{
mieqInit ();
}
#if XORG > 17
void CloseInput(void)
{
}
#endif
void vncClientGone(int fd)
{
if (fd == vncInetdSock) {
ErrorF("inetdSock client gone\n");
GiveUp(0);
}
}
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