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/*
* Copyright (C) 2004 NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of Version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See Version 2
* of the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the:
*
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA
*
*/
#define NEED_EVENTS
#define NEED_REPLIES
#include <X11/Xlibint.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/extutil.h>
#include "NVCtrlLib.h"
#include "nv_control.h"
static XExtensionInfo _nvctrl_ext_info_data;
static XExtensionInfo *nvctrl_ext_info = &_nvctrl_ext_info_data;
static const char *nvctrl_extension_name = NV_CONTROL_NAME;
#define XNVCTRLCheckExtension(dpy,i,val) \
XextCheckExtension (dpy, i, nvctrl_extension_name, val)
#define XNVCTRLSimpleCheckExtension(dpy,i) \
XextSimpleCheckExtension (dpy, i, nvctrl_extension_name)
static int close_display();
static Bool wire_to_event();
static const XExtensionHooks nvctrl_extension_hooks = {
NULL, /* create_gc */
NULL, /* copy_gc */
NULL, /* flush_gc */
NULL, /* free_gc */
NULL, /* create_font */
NULL, /* free_font */
close_display, /* close_display */
wire_to_event, /* wire_to_event */
NULL, /* event_to_wire */
NULL, /* error */
NULL, /* error_string */
};
static XEXT_GENERATE_FIND_DISPLAY (find_display, nvctrl_ext_info,
nvctrl_extension_name,
&nvctrl_extension_hooks,
NV_CONTROL_EVENTS, NULL)
static XEXT_GENERATE_CLOSE_DISPLAY (close_display, nvctrl_ext_info)
Bool XNVCTRLQueryExtension (
Display *dpy,
int *event_basep,
int *error_basep
){
XExtDisplayInfo *info = find_display (dpy);
if (XextHasExtension(info)) {
if (event_basep) *event_basep = info->codes->first_event;
if (error_basep) *error_basep = info->codes->first_error;
return True;
} else {
return False;
}
}
Bool XNVCTRLQueryVersion (
Display *dpy,
int *major,
int *minor
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlQueryExtensionReply rep;
xnvCtrlQueryExtensionReq *req;
if(!XextHasExtension(info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (nvCtrlQueryExtension, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlQueryExtension;
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
if (major) *major = rep.major;
if (minor) *minor = rep.minor;
UnlockDisplay (dpy);
SyncHandle ();
return True;
}
Bool XNVCTRLIsNvScreen (
Display *dpy,
int screen
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlIsNvReply rep;
xnvCtrlIsNvReq *req;
Bool isnv;
if(!XextHasExtension(info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (nvCtrlIsNv, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlIsNv;
req->screen = screen;
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
isnv = rep.isnv;
UnlockDisplay (dpy);
SyncHandle ();
return isnv;
}
void XNVCTRLSetAttribute (
Display *dpy,
int screen,
unsigned int display_tqmask,
unsigned int attribute,
int value
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlSetAttributeReq *req;
XNVCTRLSimpleCheckExtension (dpy, info);
LockDisplay (dpy);
GetReq (nvCtrlSetAttribute, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlSetAttribute;
req->screen = screen;
req->display_tqmask = display_tqmask;
req->attribute = attribute;
req->value = value;
UnlockDisplay (dpy);
SyncHandle ();
}
Bool XNVCTRLQueryAttribute (
Display *dpy,
int screen,
unsigned int display_tqmask,
unsigned int attribute,
int *value
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlQueryAttributeReply rep;
xnvCtrlQueryAttributeReq *req;
Bool exists;
if(!XextHasExtension(info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (nvCtrlQueryAttribute, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlQueryAttribute;
req->screen = screen;
req->display_tqmask = display_tqmask;
req->attribute = attribute;
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
if (value) *value = rep.value;
exists = rep.flags;
UnlockDisplay (dpy);
SyncHandle ();
return exists;
}
Bool XNVCTRLQueryStringAttribute (
Display *dpy,
int screen,
unsigned int display_tqmask,
unsigned int attribute,
char **ptr
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlQueryStringAttributeReply rep;
xnvCtrlQueryStringAttributeReq *req;
Bool exists;
int length, numbytes, slop;
if (!ptr) return False;
if(!XextHasExtension(info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (nvCtrlQueryStringAttribute, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlQueryStringAttribute;
req->screen = screen;
req->display_tqmask = display_tqmask;
req->attribute = attribute;
if (!_XReply (dpy, (xReply *) &rep, 0, False)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
length = rep.length;
numbytes = rep.n;
slop = numbytes & 3;
*ptr = (char *) Xmalloc(numbytes);
if (! *ptr) {
_XEatData(dpy, length);
UnlockDisplay (dpy);
SyncHandle ();
return False;
} else {
_XRead(dpy, (char *) *ptr, numbytes);
if (slop) _XEatData(dpy, 4-slop);
}
exists = rep.flags;
UnlockDisplay (dpy);
SyncHandle ();
return exists;
}
Bool XNVCTRLQueryValidAttributeValues (
Display *dpy,
int screen,
unsigned int display_tqmask,
unsigned int attribute,
NVCTRLAttributeValidValuesRec *values
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlQueryValidAttributeValuesReply rep;
xnvCtrlQueryValidAttributeValuesReq *req;
Bool exists;
if (!values) return False;
if(!XextHasExtension(info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (nvCtrlQueryValidAttributeValues, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlQueryValidAttributeValues;
req->screen = screen;
req->display_tqmask = display_tqmask;
req->attribute = attribute;
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay (dpy);
SyncHandle ();
return False;
}
exists = rep.flags;
values->type = rep.attr_type;
if (rep.attr_type == ATTRIBUTE_TYPE_RANGE) {
values->u.range.min = rep.min;
values->u.range.max = rep.max;
}
if (rep.attr_type == ATTRIBUTE_TYPE_INT_BITS) {
values->u.bits.ints = rep.bits;
}
values->permissions = rep.perms;
UnlockDisplay (dpy);
SyncHandle ();
return exists;
}
Bool XNVCtrlSelectNotify (
Display *dpy,
int screen,
int type,
Bool onoff
){
XExtDisplayInfo *info = find_display (dpy);
xnvCtrlSelectNotifyReq *req;
if(!XextHasExtension (info))
return False;
XNVCTRLCheckExtension (dpy, info, False);
LockDisplay (dpy);
GetReq (nvCtrlSelectNotify, req);
req->reqType = info->codes->major_opcode;
req->nvReqType = X_nvCtrlSelectNotify;
req->screen = screen;
req->notifyType = type;
req->onoff = onoff;
UnlockDisplay (dpy);
SyncHandle ();
return True;
}
static Bool wire_to_event (Display *dpy, XEvent *host, xEvent *wire)
{
XExtDisplayInfo *info = find_display (dpy);
XNVCtrlEvent *re = (XNVCtrlEvent *) host;
xnvctrlEvent *event = (xnvctrlEvent *) wire;
XNVCTRLCheckExtension (dpy, info, False);
switch ((event->u.u.type & 0x7F) - info->codes->first_event) {
case ATTRIBUTE_CHANGED_EVENT:
re->attribute_changed.type = event->u.u.type & 0x7F;
re->attribute_changed.serial =
_XSetLastRequestRead(dpy, (xGenericReply*) event);
re->attribute_changed.send_event = ((event->u.u.type & 0x80) != 0);
re->attribute_changed.display = dpy;
re->attribute_changed.time = event->u.attribute_changed.time;
re->attribute_changed.screen = event->u.attribute_changed.screen;
re->attribute_changed.display_tqmask =
event->u.attribute_changed.display_tqmask;
re->attribute_changed.attribute = event->u.attribute_changed.attribute;
re->attribute_changed.value = event->u.attribute_changed.value;
break;
default:
return False;
}
return True;
}
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