config.js 2.64 KB
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function _FT_Common()
{    
    this.UintToInt = function(v){
        return (v>FT_Common.m_i)?v-FT_Common.a_i:v;
    }
    this.UShort_To_Short = function(v){
        return (v>FT_Common.m_s)?v-FT_Common.a_s:v;
    }
    this.IntToUInt = function(v){
        return (v<0)?v+FT_Common.a_i:v;
    }
    this.Short_To_UShort = function(v){
        return (v<0)?v+FT_Common.a_s:v;
    }
    this.memset = function(d,v,s)
    {
        for (var i=0;i<s;i++)
            d[i]=v;
    }
    this.memcpy = function(d,s,l)
    {
        for (var i=0;i<l;i++)
            d[i]=s[i];
    }
    this.memset_p = function(d,v,s)
    {
        var _d = d.data;
        var _e = d.pos+s;
        for (var i=d.pos;i<_e;i++)
            _d[i]=v;
    }
    this.memcpy_p = function(d,s,l)
    {
        var _d1=d.data;
        var _p1=d.pos;
        var _d2=s.data;
        var _p2=s.pos;
        for (var i=0;i<l;i++)
            _d1[_p1++]=_d2[_p2++];
    }
    this.memcpy_p2 = function(d,s,p,l)
    {
        var _d1=d.data;
        var _p1=d.pos;
        var _p2=p;
        for (var i=0;i<l;i++)
            _d1[_p1++]=s[_p2++];
    }
    this.realloc = function(memory, pointer, cur_count, new_count)
    {
        var ret = { block: null, err : 0, size : new_count};
        if (cur_count < 0 || new_count < 0)
        {
            /* may help catch/prevent nasty security issues */
            ret.err = FT_Common.FT_Err_Invalid_Argument;
        }
        else if (new_count == 0)
        {
            ret.block = null;
        }
        else if (cur_count == 0)
        {
            ret.block = memory.Alloc(new_count);
        }
        else
        {
            var block2 = memory.Alloc(new_count);
            FT_Common.memcpy_p(block2, pointer, cur_count);
            ret.block = block2;
        }
        return ret;
    }

    this.realloc_long = function(memory, pointer, cur_count, new_count)
    {
        var ret = { block: null, err : 0, size : new_count};
        if (cur_count < 0 || new_count < 0)
        {
            /* may help catch/prevent nasty security issues */
            ret.err = FT_Common.FT_Err_Invalid_Argument;
        }
        else if (new_count == 0)
        {
            ret.block = null;
        }
        else if (cur_count == 0)
        {
            ret.block = CreateIntArray(new_count);
        }
        else
        {
            var block2 = CreateIntArray(new_count);
            for (var i = 0; i < cur_count; i++)
                block2[i] = pointer[i];

            ret.block = block2;
        }
        return ret;
    }
}
var FT_Common = new _FT_Common();