21 #include "JackGlobals.h"
22 #include "JackEngineControl.h"
23 #include "JackPortType.h"
27 #if defined (__APPLE__)
28 #include <Accelerate/Accelerate.h>
29 #elif defined (__SSE__) && !defined (__sun__)
30 #include <xmmintrin.h>
36 static void AudioBufferInit(
void* buffer,
size_t buffer_size, jack_nframes_t)
38 memset(buffer, 0, buffer_size);
41 static inline void MixAudioBuffer(jack_default_audio_sample_t* mixbuffer, jack_default_audio_sample_t* buffer, jack_nframes_t frames)
45 jack_default_audio_sample_t gain = jack_default_audio_sample_t(1.0);
46 vDSP_vsma(buffer, 1, &gain, mixbuffer, 1, mixbuffer, 1, frames);
48 jack_nframes_t frames_group = frames / 4;
51 while (frames_group > 0) {
52 #if defined (__SSE__) && !defined (__sun__)
53 __m128 vec = _mm_add_ps(_mm_load_ps(mixbuffer), _mm_load_ps(buffer));
54 _mm_store_ps(mixbuffer, vec);
60 register jack_default_audio_sample_t mixFloat1 = *mixbuffer;
61 register jack_default_audio_sample_t sourceFloat1 = *buffer;
62 register jack_default_audio_sample_t mixFloat2 = *(mixbuffer + 1);
63 register jack_default_audio_sample_t sourceFloat2 = *(buffer + 1);
64 register jack_default_audio_sample_t mixFloat3 = *(mixbuffer + 2);
65 register jack_default_audio_sample_t sourceFloat3 = *(buffer + 2);
66 register jack_default_audio_sample_t mixFloat4 = *(mixbuffer + 3);
67 register jack_default_audio_sample_t sourceFloat4 = *(buffer + 3);
72 mixFloat1 += sourceFloat1;
73 mixFloat2 += sourceFloat2;
74 mixFloat3 += sourceFloat3;
75 mixFloat4 += sourceFloat4;
77 *mixbuffer = mixFloat1;
78 *(mixbuffer + 1) = mixFloat2;
79 *(mixbuffer + 2) = mixFloat3;
80 *(mixbuffer + 3) = mixFloat4;
87 register jack_default_audio_sample_t mixFloat1 = *mixbuffer;
88 register jack_default_audio_sample_t sourceFloat1 = *buffer;
91 mixFloat1 += sourceFloat1;
92 *mixbuffer = mixFloat1;
98 static void AudioBufferMixdown(
void* mixbuffer,
void** src_buffers,
int src_count, jack_nframes_t nframes)
103 #if defined (__SSE__) && !defined (__sun__)
104 jack_nframes_t frames_group = nframes / 4;
105 jack_nframes_t remaining_frames = nframes % 4;
107 jack_default_audio_sample_t * source =
static_cast<jack_default_audio_sample_t*
>(src_buffers[0]);
108 jack_default_audio_sample_t * target =
static_cast<jack_default_audio_sample_t*
>(mixbuffer);
110 while (frames_group > 0)
112 __m128 vec = _mm_load_ps(source);
113 _mm_store_ps(target, vec);
119 for (jack_nframes_t i = 0; i != remaining_frames; ++i)
120 target[i] = source[i];
123 memcpy(mixbuffer, src_buffers[0], nframes *
sizeof(jack_default_audio_sample_t));
127 for (
int i = 1; i < src_count; ++i) {
128 buffer = src_buffers[i];
129 MixAudioBuffer(static_cast<jack_default_audio_sample_t*>(mixbuffer), static_cast<jack_default_audio_sample_t*>(buffer), nframes);
133 static size_t AudioBufferSize()
135 return GetEngineControl()->fBufferSize *
sizeof(jack_default_audio_sample_t);
138 const JackPortType gAudioPortType =
140 JACK_DEFAULT_AUDIO_TYPE,