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miniaudio
Commit 619b94c3 authored by David Reid's avatar David Reid
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Optimizations to f32 and s16 waveform generation.

parent 6b299772
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Showing with 134 additions and 22 deletions
miniaudio.h
View file @ 619b94c3
......@@ -32404,6 +32404,11 @@ Format Conversion
**************************************************************************************************************************************************************/
static MA_INLINE ma_int16 ma_pcm_sample_f32_to_s16(float x)
{
return (ma_int16)(x * 32767.0f);
}
/* u8 */
void ma_pcm_u8_to_u8(void* dst, const void* src, ma_uint64 count, ma_dither_mode ditherMode)
{
......@@ -38375,6 +38380,11 @@ static float ma_waveform_sine_f32(double time, double frequency, double amplitud
return (float)(ma_sin(MA_TAU_D * time * frequency) * amplitude);
}
static ma_int16 ma_waveform_sine_s16(double time, double frequency, double amplitude)
{
return ma_pcm_sample_f32_to_s16(ma_waveform_sine_f32(time, frequency, amplitude));
}
static float ma_waveform_square_f32(double time, double frequency, double amplitude)
{
double t = time * frequency;
......@@ -38390,6 +38400,11 @@ static float ma_waveform_square_f32(double time, double frequency, double amplit
return (float)r;
}
static ma_int16 ma_waveform_square_s16(double time, double frequency, double amplitude)
{
return ma_pcm_sample_f32_to_s16(ma_waveform_square_f32(time, frequency, amplitude));
}
static float ma_waveform_triangle_f32(double time, double frequency, double amplitude)
{
double t = time * frequency;
......@@ -38401,6 +38416,11 @@ static float ma_waveform_triangle_f32(double time, double frequency, double ampl
return (float)(r * amplitude);
}
static ma_int16 ma_waveform_triangle_s16(double time, double frequency, double amplitude)
{
return ma_pcm_sample_f32_to_s16(ma_waveform_triangle_f32(time, frequency, amplitude));
}
static float ma_waveform_sawtooth_f32(double time, double frequency, double amplitude)
{
double t = time * frequency;
......@@ -38412,6 +38432,11 @@ static float ma_waveform_sawtooth_f32(double time, double frequency, double ampl
return (float)(r * amplitude);
}
static ma_int16 ma_waveform_sawtooth_s16(double time, double frequency, double amplitude)
{
return ma_pcm_sample_f32_to_s16(ma_waveform_sawtooth_f32(time, frequency, amplitude));
}
static void ma_waveform_read_pcm_frames__sine(ma_waveform* pWaveform, void* pFramesOut, ma_uint64 frameCount)
{
ma_uint64 iFrame;
......@@ -38422,12 +38447,34 @@ static void ma_waveform_read_pcm_frames__sine(ma_waveform* pWaveform, void* pFra
MA_ASSERT(pWaveform != NULL);
MA_ASSERT(pFramesOut != NULL);
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_sine_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
if (pWaveform->config.format == ma_format_f32) {
float* pFramesOutF32 = (float*)pFramesOut;
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_sine_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
ma_pcm_convert(ma_offset_ptr(pFramesOut, iFrame*bpf + iChannel*bps), pWaveform->config.format, &s, ma_format_f32, 1, ma_dither_mode_none);
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
pFramesOutF32[iFrame*pWaveform->config.channels + iChannel] = s;
}
}
} else if (pWaveform->config.format == ma_format_s16) {
ma_int16* pFramesOutS16 = (ma_int16*)pFramesOut;
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
ma_int16 s = ma_waveform_sine_s16(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
pFramesOutS16[iFrame*pWaveform->config.channels + iChannel] = s;
}
}
} else {
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_sine_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
ma_pcm_convert(ma_offset_ptr(pFramesOut, iFrame*bpf + iChannel*bps), pWaveform->config.format, &s, ma_format_f32, 1, ma_dither_mode_none);
}
}
}
}
......@@ -38442,12 +38489,34 @@ static void ma_waveform_read_pcm_frames__square(ma_waveform* pWaveform, void* pF
MA_ASSERT(pWaveform != NULL);
MA_ASSERT(pFramesOut != NULL);
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_square_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
if (pWaveform->config.format == ma_format_f32) {
float* pFramesOutF32 = (float*)pFramesOut;
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_square_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
pFramesOutF32[iFrame*pWaveform->config.channels + iChannel] = s;
}
}
} else if (pWaveform->config.format == ma_format_s16) {
ma_int16* pFramesOutS16 = (ma_int16*)pFramesOut;
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
ma_int16 s = ma_waveform_square_s16(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
ma_pcm_convert(ma_offset_ptr(pFramesOut, iFrame*bpf + iChannel*bps), pWaveform->config.format, &s, ma_format_f32, 1, ma_dither_mode_none);
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
pFramesOutS16[iFrame*pWaveform->config.channels + iChannel] = s;
}
}
} else {
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_square_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
ma_pcm_convert(ma_offset_ptr(pFramesOut, iFrame*bpf + iChannel*bps), pWaveform->config.format, &s, ma_format_f32, 1, ma_dither_mode_none);
}
}
}
}
......@@ -38462,12 +38531,34 @@ static void ma_waveform_read_pcm_frames__triangle(ma_waveform* pWaveform, void*
MA_ASSERT(pWaveform != NULL);
MA_ASSERT(pFramesOut != NULL);
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_triangle_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
if (pWaveform->config.format == ma_format_f32) {
float* pFramesOutF32 = (float*)pFramesOut;
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_triangle_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
pFramesOutF32[iFrame*pWaveform->config.channels + iChannel] = s;
}
}
} else if (pWaveform->config.format == ma_format_s16) {
ma_int16* pFramesOutS16 = (ma_int16*)pFramesOut;
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
ma_int16 s = ma_waveform_triangle_s16(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
pFramesOutS16[iFrame*pWaveform->config.channels + iChannel] = s;
}
}
} else {
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_triangle_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
ma_pcm_convert(ma_offset_ptr(pFramesOut, iFrame*bpf + iChannel*bps), pWaveform->config.format, &s, ma_format_f32, 1, ma_dither_mode_none);
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
ma_pcm_convert(ma_offset_ptr(pFramesOut, iFrame*bpf + iChannel*bps), pWaveform->config.format, &s, ma_format_f32, 1, ma_dither_mode_none);
}
}
}
}
......@@ -38478,17 +38569,38 @@ static void ma_waveform_read_pcm_frames__sawtooth(ma_waveform* pWaveform, void*
ma_uint64 iChannel;
ma_uint32 bps = ma_get_bytes_per_sample(pWaveform->config.format);
ma_uint32 bpf = bps * pWaveform->config.channels;
MA_ASSERT(pWaveform != NULL);
MA_ASSERT(pFramesOut != NULL);
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_sawtooth_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
if (pWaveform->config.format == ma_format_f32) {
float* pFramesOutF32 = (float*)pFramesOut;
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_sawtooth_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
pFramesOutF32[iFrame*pWaveform->config.channels + iChannel] = s;
}
}
} else if (pWaveform->config.format == ma_format_s16) {
ma_int16* pFramesOutS16 = (ma_int16*)pFramesOut;
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
ma_int16 s = ma_waveform_sawtooth_s16(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
ma_pcm_convert(ma_offset_ptr(pFramesOut, iFrame*bpf + iChannel*bps), pWaveform->config.format, &s, ma_format_f32, 1, ma_dither_mode_none);
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
pFramesOutS16[iFrame*pWaveform->config.channels + iChannel] = s;
}
}
} else {
for (iFrame = 0; iFrame < frameCount; iFrame += 1) {
float s = ma_waveform_sawtooth_f32(pWaveform->time, pWaveform->config.frequency, pWaveform->config.amplitude);
pWaveform->time += pWaveform->advance;
for (iChannel = 0; iChannel < pWaveform->config.channels; iChannel += 1) {
ma_pcm_convert(ma_offset_ptr(pFramesOut, iFrame*bpf + iChannel*bps), pWaveform->config.format, &s, ma_format_f32, 1, ma_dither_mode_none);
}
}
}
}
......@@ -38575,7 +38687,7 @@ static MA_INLINE float ma_noise_f32_white(ma_noise* pNoise)
static MA_INLINE ma_int16 ma_noise_s16_white(ma_noise* pNoise)
{
return (ma_int16)(ma_noise_f32_white(pNoise) * 32767.0f);
return ma_pcm_sample_f32_to_s16(ma_noise_f32_white(pNoise));
}
static MA_INLINE ma_uint64 ma_noise_read_pcm_frames__white(ma_noise* pNoise, void* pFramesOut, ma_uint64 frameCount)
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