XRRPropertyInfo *
XRRQueryProviderProperty (Display *dpy, RRProvider provider, Atom property)
{
XExtDisplayInfo *info = XRRFindDisplay(dpy);
xRRQueryProviderPropertyReply rep;
xRRQueryProviderPropertyReq *req;
unsigned int rbytes, nbytes;
XRRPropertyInfo *prop_info;
RRCheckExtension (dpy, info, NULL);
LockDisplay (dpy);
GetReq (RRQueryProviderProperty, req);
req->reqType = info->codes->major_opcode;
req->randrReqType = X_RRQueryProviderProperty;
req->provider = provider;
req->property = property;
if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
UnlockDisplay (dpy);
SyncHandle ();
return NULL;
}
if (rep.length < ((INT_MAX / sizeof(long)) - sizeof (XRRPropertyInfo))) {
rbytes = sizeof (XRRPropertyInfo) + (rep.length * sizeof (long));
nbytes = rep.length << 2;
prop_info = Xmalloc (rbytes);
} else
prop_info = NULL;
if (prop_info == NULL) {
_XEatDataWords (dpy, rep.length);
UnlockDisplay (dpy);
SyncHandle ();
return NULL;
}
prop_info->pending = rep.pending;
prop_info->range = rep.range;
prop_info->immutable = rep.immutable;
prop_info->num_values = rep.length;
if (rep.length != 0) {
prop_info->values = (long *) (prop_info + 1);
_XRead32 (dpy, prop_info->values, nbytes);
} else {
prop_info->values = NULL;
}
UnlockDisplay (dpy);
SyncHandle ();
return prop_info;
}
Atom *
XRRListProviderProperties (Display *dpy, RRProvider provider, int *nprop)
{
XExtDisplayInfo *info = XRRFindDisplay(dpy);
xRRListProviderPropertiesReply rep;
xRRListProviderPropertiesReq *req;
int nbytes, rbytes;
Atom *props = NULL;
RRCheckExtension (dpy, info, NULL);
LockDisplay (dpy);
GetReq (RRListProviderProperties, req);
req->reqType = info->codes->major_opcode;
req->randrReqType = X_RRListProviderProperties;
req->provider = provider;
if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
UnlockDisplay (dpy);
SyncHandle ();
*nprop = 0;
return NULL;
}
if (rep.nAtoms) {
rbytes = rep.nAtoms * sizeof (Atom);
nbytes = rep.nAtoms << 2;
props = (Atom *) Xmalloc (rbytes);
if (props == NULL) {
_XEatDataWords (dpy, rep.length);
UnlockDisplay (dpy);
SyncHandle ();
*nprop = 0;
return NULL;
}
_XRead32 (dpy, (long *) props, nbytes);
}
*nprop = rep.nAtoms;
UnlockDisplay (dpy);
SyncHandle ();
return props;
}
/*
* XmbufGetWindowAttributes -
* Gets the multibuffering attributes that apply to all buffers associated
* with the given window. Returns non-zero on success and zero if an
* error occurs.
*/
Status XmbufGetWindowAttributes (
Display *dpy,
Window w,
XmbufWindowAttributes *attr)
{
XExtDisplayInfo *info = find_display (dpy);
register xMbufGetMBufferAttributesReq *req;
xMbufGetMBufferAttributesReply rep;
MbufCheckExtension (dpy, info, 0);
LockDisplay (dpy);
MbufGetReq (MbufGetMBufferAttributes, req, info);
req->window = w;
if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
UnlockDisplay (dpy);
SyncHandle ();
return 0;
}
attr->buffers = (Multibuffer *) NULL;
if ((attr->nbuffers = rep.length)) {
int nbytes = rep.length * sizeof(Multibuffer);
attr->buffers = (Multibuffer *) Xmalloc((unsigned) nbytes);
nbytes = rep.length << 2;
if (! attr->buffers) {
_XEatDataWords(dpy, rep.length);
UnlockDisplay(dpy);
SyncHandle();
return (0);
}
_XRead32 (dpy, (long *) attr->buffers, nbytes);
}
attr->displayed_index = rep.displayedBuffer;
attr->update_action = rep.updateAction;
attr->update_hint = rep.updateHint;
attr->window_mode = rep.windowMode;
UnlockDisplay (dpy);
SyncHandle();
return 1;
}
Colormap *XListInstalledColormaps(
register Display *dpy,
Window win,
int *n) /* RETURN */
{
long nbytes;
Colormap *cmaps;
xListInstalledColormapsReply rep;
register xResourceReq *req;
LockDisplay(dpy);
GetResReq(ListInstalledColormaps, win, req);
if(_XReply(dpy, (xReply *) &rep, 0, xFalse) == 0) {
UnlockDisplay(dpy);
SyncHandle();
*n = 0;
return((Colormap *) NULL);
}
if (rep.nColormaps) {
nbytes = rep.nColormaps * sizeof(Colormap);
cmaps = (Colormap *) Xmalloc((unsigned) nbytes);
nbytes = rep.nColormaps << 2;
if (! cmaps) {
_XEatData(dpy, (unsigned long) nbytes);
UnlockDisplay(dpy);
SyncHandle();
return((Colormap *) NULL);
}
_XRead32 (dpy, (long *) cmaps, nbytes);
}
else cmaps = (Colormap *) NULL;
*n = rep.nColormaps;
UnlockDisplay(dpy);
SyncHandle();
return(cmaps);
}
Atom *XListProperties(
register Display *dpy,
Window window,
int *n_props) /* RETURN */
{
unsigned long nbytes;
xListPropertiesReply rep;
Atom *properties;
register xResourceReq *req;
LockDisplay(dpy);
GetResReq(ListProperties, window, req);
if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
*n_props = 0;
UnlockDisplay(dpy);
SyncHandle();
return ((Atom *) NULL);
}
if (rep.nProperties) {
nbytes = rep.nProperties * sizeof(Atom);
properties = Xmalloc (nbytes);
if (! properties) {
_XEatDataWords(dpy, rep.length);
UnlockDisplay(dpy);
SyncHandle();
return (Atom *) NULL;
}
nbytes = rep.nProperties << 2;
_XRead32 (dpy, (long *) properties, nbytes);
}
else properties = (Atom *) NULL;
*n_props = rep.nProperties;
UnlockDisplay(dpy);
SyncHandle();
return (properties);
}
/*
* XdbeGetVisualInfo -
* This function returns information about which visuals support
* double buffering. The argument num_screens specifies how many
* elements there are in the screen_specifiers list. Each drawable
* in screen_specifiers designates a screen for which the supported
* visuals are being requested. If num_screens is zero, information
* for all screens is requested. In this case, upon return from this
* function, num_screens will be set to the number of screens that were
* found. If an error occurs, this function returns NULL, else it returns
* a pointer to a list of XdbeScreenVisualInfo structures of length
* num_screens. The nth element in the returned list corresponds to the
* nth drawable in the screen_specifiers list, unless num_screens was
* passed in with the value zero, in which case the nth element in the
* returned list corresponds to the nth screen of the server, starting
* with screen zero.
*/
XdbeScreenVisualInfo *XdbeGetVisualInfo (
Display *dpy,
Drawable *screen_specifiers,
int *num_screens) /* SEND and RETURN */
{
XExtDisplayInfo *info = find_display(dpy);
register xDbeGetVisualInfoReq *req;
xDbeGetVisualInfoReply rep;
XdbeScreenVisualInfo *scrVisInfo;
int i;
DbeCheckExtension (dpy, info, (XdbeScreenVisualInfo *)NULL);
LockDisplay (dpy);
DbeGetReq(DbeGetVisualInfo, req, info);
req->length = 2 + *num_screens;
req->n = *num_screens;
Data32 (dpy, screen_specifiers, (*num_screens * sizeof (CARD32)));
if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) {
UnlockDisplay (dpy);
SyncHandle ();
return NULL;
}
/* return the number of screens actually found if we
* requested information about all screens (*num_screens == 0)
*/
if (*num_screens == 0)
*num_screens = rep.m;
/* allocate list of visual information to be returned */
if (!(scrVisInfo =
(XdbeScreenVisualInfo *)Xmalloc(
(unsigned)(*num_screens * sizeof(XdbeScreenVisualInfo))))) {
UnlockDisplay (dpy);
SyncHandle ();
return NULL;
}
for (i = 0; i < *num_screens; i++)
{
int nbytes;
int j;
long c;
_XRead32 (dpy, &c, sizeof(CARD32));
scrVisInfo[i].count = c;
nbytes = scrVisInfo[i].count * sizeof(XdbeVisualInfo);
/* if we can not allocate the list of visual/depth info
* then free the lists that we already allocate as well
* as the visual info list itself
*/
if (!(scrVisInfo[i].visinfo = (XdbeVisualInfo *)Xmalloc(
(unsigned)nbytes))) {
for (j = 0; j < i; j++) {
Xfree ((char *)scrVisInfo[j].visinfo);
}
Xfree ((char *)scrVisInfo);
UnlockDisplay (dpy);
SyncHandle ();
return NULL;
}
/* Read the visual info item into the wire structure. Then copy each
* element into the library structure. The element sizes and/or
* padding may be different in the two structures.
*/
for (j = 0; j < scrVisInfo[i].count; j++) {
xDbeVisInfo xvi;
_XRead (dpy, (char *)&xvi, sizeof(xDbeVisInfo));
scrVisInfo[i].visinfo[j].visual = xvi.visualID;
scrVisInfo[i].visinfo[j].depth = xvi.depth;
scrVisInfo[i].visinfo[j].perflevel = xvi.perfLevel;
}
}
UnlockDisplay (dpy);
SyncHandle ();
return scrVisInfo;
} /* XdbeGetVisualInfo() */
XPPrinterList
XpGetPrinterList (
Display *dpy,
char *printer_name,
int *list_count /* return value */
)
{
xPrintGetPrinterListReq *req;
xPrintGetPrinterListReply rep;
int printer_name_len, locale_len;
char *locale;
/* For decoding the variable portion of Reply */
long dataLenVR;
CARD8 *dataVR; /* aka STRING8 */
XPPrinterList ptr_list;
XExtDisplayInfo *info = (XExtDisplayInfo *) xp_find_display (dpy);
/* For converting root winID to corresponding ScreenPtr */
int i;
if (XpCheckExtInit(dpy, XP_DONT_CHECK) == -1)
return ( (XPPrinterList) NULL ); /* No such extension */
/*
* Fetch locale information. Note: XpGetLocaleNetString has
* a thread-safe mutex on _Xglobal_lock.
*/
locale = XpGetLocaleNetString();
LockDisplay (dpy);
GetReq(PrintGetPrinterList,req);
req->reqType = info->codes->major_opcode;
req->printReqType = X_PrintGetPrinterList;
/*
* Compute lengths of variable portions.
*/
if ( printer_name == (char *) NULL )
req->printerNameLen = 0;
else if ( *printer_name == (char) NULL )
req->printerNameLen = 0;
else {
printer_name_len = strlen( printer_name );
req->length += _XpPadOut(printer_name_len) >> 2;
req->printerNameLen = (unsigned long) printer_name_len;
}
if ( locale == (char *) NULL )
req->localeLen = 0;
else if ( *locale == (char) NULL )
req->localeLen = 0;
else {
locale_len = strlen( locale );
req->length += _XpPadOut(locale_len) >> 2;
req->localeLen = (unsigned long) locale_len;
}
/*
* Attach variable data.
*/
if (req->printerNameLen)
Data( dpy, (char *) printer_name, (long) req->printerNameLen );
if (req->localeLen)
Data( dpy, (char *) locale, (long) req->localeLen );
if (! _XReply (dpy, (xReply *) &rep, 0, xFalse)) {
UnlockDisplay(dpy);
SyncHandle();
return ( (XPPrinterList) NULL ); /* error */
}
XFree(locale);
*list_count = rep.listCount;
if (*list_count) {
ptr_list = (XPPrinterList)
Xmalloc( (unsigned) (sizeof(XPPrinterRec) * (*list_count + 1)));
if (!ptr_list) {
UnlockDisplay(dpy);
SyncHandle();
return ( (XPPrinterList) NULL ); /* malloc error */
}
/*
* NULL last entry so XpFreePrinterList can work without a list_count
*/
ptr_list[*list_count].name = (char *) NULL;
ptr_list[*list_count].desc = (char *) NULL;
for ( i = 0; i < *list_count; i++ ) {
/*
* Pull printer length and then name.
*/
_XRead32 (dpy, &dataLenVR, (long) sizeof(CARD32) );
if (dataLenVR) {
dataVR = (CARD8 *) Xmalloc( (unsigned) dataLenVR + 1 );
if (!dataVR) {
UnlockDisplay(dpy);
SyncHandle();
return ( (XPPrinterList) NULL ); /* malloc error */
}
_XReadPad (dpy, (char *) dataVR, (long) dataLenVR);
dataVR[dataLenVR] = 0;
ptr_list[i].name = (char *) dataVR;
}
else {
ptr_list[i].name = (char *) NULL;
}
/*
* Pull localized description length and then description.
*/
_XRead32 (dpy, &dataLenVR, (long) sizeof(CARD32) );
if (dataLenVR) {
dataVR = (CARD8 *) Xmalloc( (unsigned) dataLenVR + 1 );
if (!dataVR) {
UnlockDisplay(dpy);
SyncHandle();
return ( (XPPrinterList) NULL ); /* malloc error */
}
_XReadPad (dpy, (char *) dataVR, (long) dataLenVR);
dataVR[dataLenVR] = 0;
ptr_list[i].desc = (char *) dataVR;
}
else {
ptr_list[i].desc = (char *) NULL;
}
}
}
else {
ptr_list = (XPPrinterList) NULL;
}
UnlockDisplay(dpy);
SyncHandle();
return ( ptr_list );
}
XFixesCursorImage *
XFixesGetCursorImage (Display *dpy)
{
XFixesExtDisplayInfo *info = XFixesFindDisplay (dpy);
xXFixesGetCursorImageAndNameReq *req;
xXFixesGetCursorImageAndNameReply rep;
int npixels;
int nbytes_name;
int nbytes, nread, rlength;
XFixesCursorImage *image;
char *name;
XFixesCheckExtension (dpy, info, NULL);
LockDisplay (dpy);
GetReq (XFixesGetCursorImageAndName, req);
req->reqType = info->codes->major_opcode;
if (info->major_version >= 2)
req->xfixesReqType = X_XFixesGetCursorImageAndName;
else
req->xfixesReqType = X_XFixesGetCursorImage;
if (!_XReply (dpy, (xReply *) &rep, 0, xFalse))
{
UnlockDisplay (dpy);
SyncHandle ();
return NULL;
}
if (info->major_version < 2)
{
rep.cursorName = None;
rep.nbytes = 0;
}
npixels = rep.width * rep.height;
nbytes_name = rep.nbytes;
/* reply data length */
nbytes = (long) rep.length << 2;
/* bytes of actual data in the reply */
nread = (npixels << 2) + nbytes_name;
/* size of data returned to application */
rlength = (sizeof (XFixesCursorImage) +
npixels * sizeof (unsigned long) +
nbytes_name + 1);
image = (XFixesCursorImage *) Xmalloc (rlength);
if (!image)
{
_XEatData (dpy, nbytes);
UnlockDisplay (dpy);
SyncHandle ();
return NULL;
}
image->x = rep.x;
image->y = rep.y;
image->width = rep.width;
image->height = rep.height;
image->xhot = rep.xhot;
image->yhot = rep.yhot;
image->cursor_serial = rep.cursorSerial;
image->pixels = (unsigned long *) (image + 1);
image->atom = rep.cursorName;
name = (char *) (image->pixels + npixels);
image->name = name;
_XRead32 (dpy, (long *) image->pixels, npixels << 2);
_XRead (dpy, name, nbytes_name);
name[nbytes_name] = '\0'; /* null-terminate */
/* skip any padding */
if(nbytes > nread)
{
_XEatData (dpy, (unsigned long) (nbytes - nread));
}
UnlockDisplay (dpy);
SyncHandle ();
return image;
}
