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Fixed undecimation command

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This commit is contained in:
Martin Holst Swende 2015-01-31 12:42:40 +01:00
parent 698b649e0e
commit c856ceae8a
1 changed files with 21 additions and 13 deletions
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34
client/cmddata.c
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@ -549,24 +549,32 @@ int CmdDec(const char *Cmd)
*/ */
int CmdUndec(const char *Cmd) int CmdUndec(const char *Cmd)
{ {
if(param_getchar(Cmd, 0) == 'h')
{
PrintAndLog("Usage: data undec [factor]");
PrintAndLog("This function performs un-decimation, by repeating each sample N times");
PrintAndLog("Options: ");
PrintAndLog(" h This help");
PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
PrintAndLog("Example: 'data undec 3'");
return 0;
}
uint8_t factor = param_get8ex(Cmd, 0,2, 10);
//We have memory, don't we? //We have memory, don't we?
int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; int swap[MAX_GRAPH_TRACE_LEN] = { 0 };
uint32_t i = 0 ,j = 0; uint32_t g_index = 0 ,s_index = 0;
while(j+1 < MAX_GRAPH_TRACE_LEN && i < GraphTraceLen) while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN)
{ {
swap[j] = GraphBuffer[i]; int count = 0;
swap[j+1] = GraphBuffer[i]; for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++)
i++; swap[s_index+count] = GraphBuffer[g_index];
j+=2; s_index+=count;
} }
memcpy(GraphBuffer,swap, j);
GraphTraceLen = j;
PrintAndLog("Undecimated by 2");
RepaintGraphWindow();
/* memcpy(GraphBuffer,swap, s_index * sizeof(int));
* Something is not right here, need to look into it, GraphTraceLen = s_index;
* the undec seems to only operate on half the values **/ RepaintGraphWindow();
return 0; return 0;
} }