/* compute all values */
public static void compute_res_net_all(out std.vector <rgb_t> rgb, ListBytesPointer prom, res_net_decode_info rdi, res_net_info di) //std::vector<rgb_t> &rgb, const u8 *prom, const res_net_decode_info &rdi, const res_net_info &di);
{
u8 r;
u8 g;
u8 b;
int i;
int j;
int k;
rgb = new std.vector <rgb_t>();
rgb.resize(rdi.end - rdi.start + 1);
for (i = rdi.start; i <= rdi.end; i++)
{
u8 [] t = new u8[3] {
0, 0, 0
};
int s;
for (j = 0; j < rdi.numcomp; j++)
{
for (k = 0; k < 3; k++)
{
s = rdi.shift[3 * j + k];
if (s > 0)
{
t[k] = (u8)(t[k] | ((prom[i + rdi.offset[3 * j + k]] >> s) & rdi.mask[3 * j + k]));
}
else
{
t[k] = (u8)(t[k] | ((prom[i + rdi.offset[3 * j + k]] << (0 - s)) & rdi.mask[3 * j + k]));
}
}
}
r = (u8)compute_res_net(t[0], RES_NET_CHAN_RED, di);
g = (u8)compute_res_net(t[1], RES_NET_CHAN_GREEN, di);
b = (u8)compute_res_net(t[2], RES_NET_CHAN_BLUE, di);
rgb[i - rdi.start] = new rgb_t(r, g, b);
}
}
/* return a single value for one channel */
public static int compute_res_net(int inputs, int channel, res_net_info di)
{
double rTotal = 0.0;
double v = 0;
int i;
double vBias = di.rgb[channel].vBias;
double vOH = di.vOH;
double vOL = di.vOL;
double minout = di.rgb[channel].minout;
double cut = di.rgb[channel].cut;
double vcc = di.vcc;
double ttlHRes = 0;
double rGnd = di.rgb[channel].rGnd;
u8 OpenCol = di.OpenCol;
/* Global options */
switch (di.options & RES_NET_AMP_MASK)
{
case RES_NET_AMP_USE_GLOBAL:
/* just ignore */
break;
case RES_NET_AMP_NONE:
minout = 0.0;
cut = 0.0;
break;
case RES_NET_AMP_DARLINGTON:
minout = 0.9;
cut = 0.0;
break;
case RES_NET_AMP_EMITTER:
minout = 0.0;
cut = 0.7;
break;
case RES_NET_AMP_CUSTOM:
/* Fall through */
break;
default:
global_object.fatalerror("compute_res_net: Unknown amplifier type\n");
break;
}
switch (di.options & RES_NET_VCC_MASK)
{
case RES_NET_VCC_5V:
vcc = 5.0;
break;
case RES_NET_VCC_CUSTOM:
/* Fall through */
break;
default:
global_object.fatalerror("compute_res_net: Unknown vcc type\n");
break;
}
switch (di.options & RES_NET_VBIAS_MASK)
{
case RES_NET_VBIAS_USE_GLOBAL:
/* just ignore */
break;
case RES_NET_VBIAS_5V:
vBias = 5.0;
break;
case RES_NET_VBIAS_TTL:
vBias = TTL_VOH;
break;
case RES_NET_VBIAS_CUSTOM:
/* Fall through */
break;
default:
global_object.fatalerror("compute_res_net: Unknown vcc type\n");
break;
}
switch (di.options & RES_NET_VIN_MASK)
{
case RES_NET_VIN_OPEN_COL:
OpenCol = 1;
vOL = TTL_VOL;
break;
case RES_NET_VIN_VCC:
vOL = 0.0;
vOH = vcc;
OpenCol = 0;
break;
case RES_NET_VIN_TTL_OUT:
vOL = TTL_VOL;
vOH = TTL_VOH;
/* rough estimation from 82s129 (7052) datasheet and from various sources
* 1.4k / 30
*/
ttlHRes = 50;
OpenCol = 0;
break;
case RES_NET_VIN_CUSTOM:
/* Fall through */
break;
default:
global_object.fatalerror("compute_res_net: Unknown vin type\n");
break;
}
/* Per channel options */
switch (di.rgb[channel].options & RES_NET_AMP_MASK)
{
case RES_NET_AMP_USE_GLOBAL:
/* use global defaults */
break;
case RES_NET_AMP_NONE:
minout = 0.0;
cut = 0.0;
break;
case RES_NET_AMP_DARLINGTON:
minout = 0.7;
cut = 0.0;
break;
case RES_NET_AMP_EMITTER:
minout = 0.0;
cut = 0.7;
break;
case RES_NET_AMP_CUSTOM:
/* Fall through */
break;
default:
global_object.fatalerror("compute_res_net: Unknown amplifier type\n");
break;
}
switch (di.rgb[channel].options & RES_NET_VBIAS_MASK)
{
case RES_NET_VBIAS_USE_GLOBAL:
/* use global defaults */
break;
case RES_NET_VBIAS_5V:
vBias = 5.0;
break;
case RES_NET_VBIAS_TTL:
vBias = TTL_VOH;
break;
case RES_NET_VBIAS_CUSTOM:
/* Fall through */
break;
default:
global_object.fatalerror("compute_res_net: Unknown vcc type\n");
break;
}
/* Input impedances */
switch (di.options & RES_NET_MONITOR_MASK)
{
case RES_NET_MONITOR_INVERT:
case RES_NET_MONITOR_SANYO_EZV20:
/* Nothing */
break;
case RES_NET_MONITOR_ELECTROHOME_G07:
if (rGnd != 0.0)
{
rGnd = rGnd * 5600 / (rGnd + 5600);
}
else
{
rGnd = 5600;
}
break;
}
/* compute here - pass a / low inputs */
for (i = 0; i < di.rgb[channel].num; i++)
{
int level = ((inputs >> i) & 1);
if (di.rgb[channel].R[i] != 0.0 && level == 0)
{
// There is no difference in the calculation of the "low" input
// (transistor conducting to ground) between TTL output and
// open collector output. This is documented explicitly in the
// code below (no difference if / else.
if (OpenCol != 0)
{
rTotal += 1.0 / di.rgb[channel].R[i];
v += vOL / di.rgb[channel].R[i];
}
else
{
rTotal += 1.0 / di.rgb[channel].R[i];
v += vOL / di.rgb[channel].R[i];
}
}
}
/* Mix in rbias and rgnd */
if (di.rgb[channel].rBias != 0.0)
{
rTotal += 1.0 / di.rgb[channel].rBias;
v += vBias / di.rgb[channel].rBias;
}
if (rGnd != 0.0)
{
rTotal += 1.0 / rGnd;
}
/* if the resulting voltage after application of all low inputs is
* greater than vOH, treat high inputs as open collector/high impedance
* There will be now current into/from the TTL gate
*/
if ((di.options & RES_NET_VIN_MASK) == RES_NET_VIN_TTL_OUT)
{
if (v / rTotal > vOH)
{
OpenCol = 1;
}
}
/* Second pass - high inputs */
for (i = 0; i < di.rgb[channel].num; i++)
{
int level = ((inputs >> i) & 1);
if (di.rgb[channel].R[i] != 0.0 && level != 0)
{
if (OpenCol != 0)
{
rTotal += 0;
v += 0;
}
else
{
rTotal += 1.0 / (di.rgb[channel].R[i] + ttlHRes);
v += vOH / (di.rgb[channel].R[i] + ttlHRes);
}
}
}
rTotal = 1.0 / rTotal;
v *= rTotal;
v = Math.Max(minout, v - cut);
switch (di.options & RES_NET_MONITOR_MASK)
{
case RES_NET_MONITOR_INVERT:
v = vcc - v;
break;
case RES_NET_MONITOR_SANYO_EZV20:
v = vcc - v;
v = Math.Max((double)0, v - 0.7);
v = Math.Min(v, vcc - 2 * 0.7);
v = v / (vcc - 1.4);
v = v * vcc;
break;
case RES_NET_MONITOR_ELECTROHOME_G07:
/* Nothing */
break;
}
return((int)(v * 255 / vcc + 0.4));
}
