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