FlapJackApps/libdivecomputer
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Use separate variables for the signed and unsigned values.

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Because the number of bits in the datatype is not necessary a multiple 
of 8, the conversion can't be done with a simply cast.
This commit is contained in:
Jef Driesen 2008-10-31 14:06:33 +00:00
parent 53bb7778c7
commit 2e2031d738
1 changed files with 8 additions and 8 deletions
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16
src/uwatec_galileo_parser.c
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@ -294,7 +294,7 @@ uwatec_galileo_parser_samples_foreach (parser_t *abstract, sample_callback_t cal
offset += table[id].extrabytes + 1;
// Fix the sign bit.
value = uwatec_galileo_fixsignbit (value, nbits);
signed int svalue = uwatec_galileo_fixsignbit (value, nbits);
if (complete && table[id].type != TIME) {
complete = 0;
@ -305,8 +305,8 @@ uwatec_galileo_parser_samples_foreach (parser_t *abstract, sample_callback_t cal
// Parse the value.
switch (table[id].type) {
case DELTA_TANK_PRESSURE_DEPTH:
pressure += ((signed char) ((value >> NBITS) & 0xFF)) / 4.0;
depth += ((signed char) (value & 0xFF)) / 50.0;
pressure += ((signed char) ((svalue >> NBITS) & 0xFF)) / 4.0;
depth += ((signed char) (svalue & 0xFF)) / 50.0;
sample.pressure.tank = tank;
sample.pressure.value = pressure;
if (callback) callback (SAMPLE_TYPE_PRESSURE, sample, userdata);
@ -316,30 +316,30 @@ uwatec_galileo_parser_samples_foreach (parser_t *abstract, sample_callback_t cal
time += 4;
break;
case DELTA_RBT:
rbt += (signed int) value;
rbt += svalue;
sample.rbt = rbt;
if (callback) callback (SAMPLE_TYPE_RBT, sample, userdata);
break;
case DELTA_TEMPERATURE:
temperature += ((signed int)value) / 2.5;
temperature += svalue / 2.5;
sample.temperature = temperature;
if (callback) callback (SAMPLE_TYPE_TEMPERATURE, sample, userdata);
break;
case DELTA_TANK_PRESSURE:
pressure += ((signed int)value) / 4.0;
pressure += svalue / 4.0;
sample.pressure.tank = tank;
sample.pressure.value = pressure;
if (callback) callback (SAMPLE_TYPE_PRESSURE, sample, userdata);
break;
case DELTA_DEPTH:
depth += ((signed int)value) / 50.0;
depth += svalue / 50.0;
sample.depth = depth - depth_calibration;
if (callback) callback (SAMPLE_TYPE_DEPTH, sample, userdata);
complete = 1;
time += 4;
break;
case DELTA_HEARTRATE:
heartrate += (signed int) value;
heartrate += svalue;
sample.heartbeat = heartrate;
if (callback) callback (SAMPLE_TYPE_HEARTBEAT, sample, userdata);
break;