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Merge pull request #4181 from DedeHai/0_15_trig_math

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Added integer based `sin()/cos()` functions, changed all trig functions to wled_math
This commit is contained in:
Damian Schneider
2024-11-27 22:27:56 +01:00
committed by Frank
parent 5ea9cb1907
commit e914417c74
5 changed files with 319 additions and 179 deletions
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41
wled00/util.cpp
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@@ -423,6 +423,39 @@ uint16_t crc16(const unsigned char* data_p, size_t length) {
return crc;
}
// fastled beatsin: 1:1 replacements to remove the use of fastled sin16()
// Generates a 16-bit sine wave at a given BPM that oscillates within a given range. see fastled for details.
uint16_t beatsin88_t(accum88 beats_per_minute_88, uint16_t lowest, uint16_t highest, uint32_t timebase, uint16_t phase_offset)
{
uint16_t beat = beat88( beats_per_minute_88, timebase);
uint16_t beatsin (sin16_t( beat + phase_offset) + 32768);
uint16_t rangewidth = highest - lowest;
uint16_t scaledbeat = scale16( beatsin, rangewidth);
uint16_t result = lowest + scaledbeat;
return result;
}
// Generates a 16-bit sine wave at a given BPM that oscillates within a given range. see fastled for details.
uint16_t beatsin16_t(accum88 beats_per_minute, uint16_t lowest, uint16_t highest, uint32_t timebase, uint16_t phase_offset)
{
uint16_t beat = beat16( beats_per_minute, timebase);
uint16_t beatsin = (sin16_t( beat + phase_offset) + 32768);
uint16_t rangewidth = highest - lowest;
uint16_t scaledbeat = scale16( beatsin, rangewidth);
uint16_t result = lowest + scaledbeat;
return result;
}
// Generates an 8-bit sine wave at a given BPM that oscillates within a given range. see fastled for details.
uint8_t beatsin8_t(accum88 beats_per_minute, uint8_t lowest, uint8_t highest, uint32_t timebase, uint8_t phase_offset)
{
uint8_t beat = beat8( beats_per_minute, timebase);
uint8_t beatsin = sin8_t( beat + phase_offset);
uint8_t rangewidth = highest - lowest;
uint8_t scaledbeat = scale8( beatsin, rangewidth);
uint8_t result = lowest + scaledbeat;
return result;
}
///////////////////////////////////////////////////////////////////////////////
// Begin simulateSound (to enable audio enhanced effects to display something)
@@ -487,8 +520,8 @@ um_data_t* simulateSound(uint8_t simulationId)
default:
case UMS_BeatSin:
for (int i = 0; i<16; i++)
fftResult[i] = beatsin8(120 / (i+1), 0, 255);
// fftResult[i] = (beatsin8(120, 0, 255) + (256/16 * i)) % 256;
fftResult[i] = beatsin8_t(120 / (i+1), 0, 255);
// fftResult[i] = (beatsin8_t(120, 0, 255) + (256/16 * i)) % 256;
volumeSmth = fftResult[8];
break;
case UMS_WeWillRockYou:
@@ -525,12 +558,12 @@ um_data_t* simulateSound(uint8_t simulationId)
break;
case UMS_10_13:
for (int i = 0; i<16; i++)
fftResult[i] = inoise8(beatsin8(90 / (i+1), 0, 200)*15 + (ms>>10), ms>>3);
fftResult[i] = inoise8(beatsin8_t(90 / (i+1), 0, 200)*15 + (ms>>10), ms>>3);
volumeSmth = fftResult[8];
break;
case UMS_14_3:
for (int i = 0; i<16; i++)
fftResult[i] = inoise8(beatsin8(120 / (i+1), 10, 30)*10 + (ms>>14), ms>>3);
fftResult[i] = inoise8(beatsin8_t(120 / (i+1), 10, 30)*10 + (ms>>14), ms>>3);
volumeSmth = fftResult[8];
break;
}