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Diff: Distotion_Unit.cpp
- Revision:
- 0:8e3468376286
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Distotion_Unit.cpp Sat May 07 12:37:10 2011 +0000 @@ -0,0 +1,42 @@ +/*****************************************************/ +/* Distotion_Unit.cpp */ +/* */ +/*****************************************************/ + +#define DIST_MAIN +#include "Distotion_Unit.h" + +#define LIMIT_P (32767) +#define LIMIT_N (-32768) + +int distotion(int iEffectIn) { + + int iSignal; + + // Input Gain + iSignal = iEffectIn * g_inputGain; + + // Clip + switch(g_distMode){ + case 1: if (iSignal < 0)iSignal *= (-1); + if (iSignal >= g_clipLevel)iSignal = g_clipLevel; + break; + case 2: if (iSignal >= g_clipLevel)iSignal = g_clipLevel; + if (iSignal <= -g_clipLevel)iSignal = -g_clipLevel; + break; + case 3: if (iSignal >= g_clipLevel)iSignal = g_clipLevel; + if (iSignal <= (-g_clipLevel / 2))iSignal = (-g_clipLevel / 2); + break; + default:break; + } + + // Output Gain + iSignal *= g_outputGain; + if (iSignal >= LIMIT_P)iSignal = LIMIT_P; + if (iSignal <= LIMIT_N)iSignal = LIMIT_N; + + return iSignal; + +} + +#undef DIST_MAIN \ No newline at end of file