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Added API to change waveform type dynamically

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Micheal Reed
2020-11-18 12:32:54 -06:00
parent 140bf99065
commit b52bec5810
1 changed files with 14 additions and 1 deletions
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miniaudio.h
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@@ -1145,7 +1145,7 @@ miniaudio supports generation of sine, square, triangle and sawtooth waveforms.
ma_waveform_read_pcm_frames(&waveform, pOutput, frameCount); ma_waveform_read_pcm_frames(&waveform, pOutput, frameCount);
``` ```
The amplitude, frequency and sample rate can be changed dynamically with `ma_waveform_set_amplitude()`, `ma_waveform_set_frequency()` and The amplitude, frequency, type, and sample rate can be changed dynamically with `ma_waveform_set_amplitude()`, `ma_waveform_set_frequency()`, ma_waveform_set_type(), and
`ma_waveform_set_sample_rate()` respectively. `ma_waveform_set_sample_rate()` respectively.
You can invert the waveform by setting the amplitude to a negative value. You can use this to control whether or not a sawtooth has a positive or negative You can invert the waveform by setting the amplitude to a negative value. You can use this to control whether or not a sawtooth has a positive or negative
@@ -6103,6 +6103,7 @@ MA_API ma_uint64 ma_waveform_read_pcm_frames(ma_waveform* pWaveform, void* pFram
MA_API ma_result ma_waveform_seek_to_pcm_frame(ma_waveform* pWaveform, ma_uint64 frameIndex); MA_API ma_result ma_waveform_seek_to_pcm_frame(ma_waveform* pWaveform, ma_uint64 frameIndex);
MA_API ma_result ma_waveform_set_amplitude(ma_waveform* pWaveform, double amplitude); MA_API ma_result ma_waveform_set_amplitude(ma_waveform* pWaveform, double amplitude);
MA_API ma_result ma_waveform_set_frequency(ma_waveform* pWaveform, double frequency); MA_API ma_result ma_waveform_set_frequency(ma_waveform* pWaveform, double frequency);
MA_API ma_result ma_waveform_set_type(ma_waveform* pWaveform, ma_waveform_type type);
MA_API ma_result ma_waveform_set_sample_rate(ma_waveform* pWaveform, ma_uint32 sampleRate); MA_API ma_result ma_waveform_set_sample_rate(ma_waveform* pWaveform, ma_uint32 sampleRate);
@@ -47479,6 +47480,18 @@ MA_API ma_result ma_waveform_set_frequency(ma_waveform* pWaveform, double freque
return MA_SUCCESS; return MA_SUCCESS;
} }
MA_API ma_result ma_waveform_set_type(ma_waveform* pWaveform, ma_waveform_type type)
{
if (pWaveform == NULL) {
return MA_INVALID_ARGS;
}
pWaveform->config.type = type;
ma_waveform__update_advance(pWaveform);
return MA_SUCCESS;
}
MA_API ma_result ma_waveform_set_sample_rate(ma_waveform* pWaveform, ma_uint32 sampleRate) MA_API ma_result ma_waveform_set_sample_rate(ma_waveform* pWaveform, ma_uint32 sampleRate)
{ {
if (pWaveform == NULL) { if (pWaveform == NULL) {