gprm.cc

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2002 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// 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 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

//------------------------------------------------------------------------------

#include "GPRM.h"

#include "util/Util.h"

//------------------------------------------------------------------------------

using dvd::vm::GPR;
using dvd::vm::GPRM;

//------------------------------------------------------------------------------

void GPR::reset()
{
    isCounter = false;
    setTime = 0;
    setValue(0);
}

//------------------------------------------------------------------------------

void GPR::setCounter()
{
    isCounter = true;
    setTime = Util::currentTimeMillis();
}

//------------------------------------------------------------------------------

void GPR::clearCounter()
{
    Register::setValue(Register::getValue());
    isCounter = false;
    setTime = 0;
}

//------------------------------------------------------------------------------

void GPR::setValue(unsigned x)
{
    Register::setValue(x);
    if (isCounter) setTime = Util::currentTimeMillis();
}

//------------------------------------------------------------------------------

unsigned GPR::getValue() const
{
    unsigned short x = Register::getValue();
    if (isCounter) {
        x += (Util::currentTimeMillis() - setTime + 500)/1000;
    }
    return x;
}

//------------------------------------------------------------------------------

bool GPR::save(FILE* f) const
{
    bool ok = true;

    ok = ok && Register::save(f);
    ok = ok && (fwrite(&isCounter, sizeof(isCounter), 1, f)==1);
    ok = ok && (fwrite(&setTime, sizeof(setTime), 1, f)==1);
    
    return ok;
}

//------------------------------------------------------------------------------

bool GPR::load(FILE* f)
{
    bool ok = true;

    ok = ok && Register::load(f);
    ok = ok && (fread(&isCounter, sizeof(isCounter), 1, f)==1);
    ok = ok && (fread(&setTime, sizeof(setTime), 1, f)==1);
    
    return ok;
}

//------------------------------------------------------------------------------
//------------------------------------------------------------------------------

void GPRM::reset()
{
    for(size_t i = 0; i<numRegisters; ++i) {
        registers[i].reset();
    }
}

//------------------------------------------------------------------------------

bool GPRM::save(FILE* f) const
{
    bool ok = true;
    for(size_t i = 0; i<numRegisters && ok; ++i) {
        ok = registers[i].save(f);
    }
    return ok;
}

//------------------------------------------------------------------------------

bool GPRM::load(FILE* f)
{
    bool ok = true;
    for(size_t i = 0; i<numRegisters && ok; ++i) {
        ok = registers[i].load(f);
    }
    return ok;
}

//------------------------------------------------------------------------------
//------------------------------------------------------------------------------