boinc/client/ss_logic.h

71 lines
2.4 KiB
C++

// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2005 University of California
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation;
// either version 2.1 of the License, or (at your option) any later version.
//
// This software 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 the GNU Lesser General Public License for more details.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef _SS_LOGIC_
#define _SS_LOGIC_
#ifndef _WIN32
#include <ctime>
#endif
// the core client can be requested to provide screensaver graphics (SSG).
// The following are states of this function:
#define SS_STATUS_ENABLED 1
// requested to provide SSG
#define SS_STATUS_BLANKED 3
// not providing SSG, SS should blank screen
#define SS_STATUS_BOINCSUSPENDED 4
// not providing SS because suspended
#define SS_STATUS_NOAPPSEXECUTING 6
// no apps executing
#define SS_STATUS_NOGRAPHICSAPPSEXECUTING 7
// apps executing, but none graphical
#define SS_STATUS_QUIT 8
// not requested to provide SSG
#define SS_STATUS_NOPROJECTSDETECTED 9
class SS_LOGIC {
public:
SS_LOGIC();
void start_ss(GRAPHICS_MSG&, double blank_time);
void stop_ss();
void poll(double);
void reset();
int get_ss_status() { return ss_status; };
void ask_app(ACTIVE_TASK*, GRAPHICS_MSG&);
private:
double blank_time; // 0 or time to blank screen
double ack_deadline; // when to give up on graphics app
int ss_status; // the status of the screensaver from the core
// client perspective.
bool do_ss; // true if we're acting like a screensaver
GRAPHICS_MSG saved_graphics_msg;
// invariants
//
// at most one app has request_mode = FULLSCREEN
// pre-ss mode of all apps is not FULLSCREEN
};
#endif