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-rw-r--r--meta-openembedded/meta-multimedia/recipes-multimedia/fluidsynth/fluidsynth/0003-Use-ARM-NEON-accelaration-for-float-multithreaded-se.patch304
1 files changed, 304 insertions, 0 deletions
diff --git a/meta-openembedded/meta-multimedia/recipes-multimedia/fluidsynth/fluidsynth/0003-Use-ARM-NEON-accelaration-for-float-multithreaded-se.patch b/meta-openembedded/meta-multimedia/recipes-multimedia/fluidsynth/fluidsynth/0003-Use-ARM-NEON-accelaration-for-float-multithreaded-se.patch
new file mode 100644
index 000000000..ead099545
--- /dev/null
+++ b/meta-openembedded/meta-multimedia/recipes-multimedia/fluidsynth/fluidsynth/0003-Use-ARM-NEON-accelaration-for-float-multithreaded-se.patch
@@ -0,0 +1,304 @@
+From 947f79f97a5fa6547d99bff282606026632e010b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andreas=20M=C3=BCller?= <schnitzeltony@gmail.com>
+Date: Sat, 13 Oct 2018 23:01:11 +0200
+Subject: [PATCH] Use ARM-NEON accelaration for float-multithreaded setups
+
+Profiling shows a considerable performance win. See estimated number of voices:
+They increase from ~471 to ~513 which makes a ~9% win:
+
+*******************************************************************************
+WITHOUT ARM NEON:
+*******************************************************************************
+
+morona@raspberrypi3:~$ fluidsynth -o synth.cpu-cores=4 -o synth.chorus.active=0 -o synth.reverb.active=0 /usr/share/sf2/fluidr3gm.sf2
+> prof_set_print 1
+> prof_set_notes 10
+> prof_start 3 10000
+Generating 10 notes, generated voices:20
+Number of measures(n_prof):3, duration of one mesure(dur):10000ms
+
+Profiling time(mm:ss): Total=0:30 Remainder=0:30, press <ENTER> to cancel
+ ------------------------------------------------------------------------------
+ Duration(microsecond) and cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond)
+ ------------------------------------------------------------------------------
+ Code under profiling |Voices| Duration (microsecond) | Load(%)
+ | nbr| min| avg| max|
+ ---------------------------|------|--------------------------------|----------
+ synth_write_* ------------>| 20| 112.00| 118.96| 206.00| 4.461
+ synth_one_block ---------->| 20| 109.00| 116.44| 196.00| 4.367
+ synth_one_block:clear ---->| 20| 1.00| 1.67| 18.00| 0.063
+ synth_one_block:one voice->| 1| 11.00| 12.36| 58.00| 0.463
+ synth_one_block:all voices>| 20| 107.00| 113.47| 187.00| 4.255
+ synth_one_block:reverb --->| no profiling available
+ synth_one_block:chorus --->| no profiling available
+ voice:note --------------->| no profiling available
+ voice:release ------------>| no profiling available
+ ------------------------------------------------------------------------------
+ Cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond) and maximum voices
+ ------------------------------------------------------------------------------
+ nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
+ -------|---------|---------|----------|---------|---------|-------------------
+ 20| 4.461| 4.461| 0.000| 0.000| 0.213| 470
+
+Profiling time(mm:ss): Total=0:30 Remainder=0:20, press <ENTER> to cancel
+ ------------------------------------------------------------------------------
+ Duration(microsecond) and cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond)
+ ------------------------------------------------------------------------------
+ Code under profiling |Voices| Duration (microsecond) | Load(%)
+ | nbr| min| avg| max|
+ ---------------------------|------|--------------------------------|----------
+ synth_write_* ------------>| 20| 112.00| 118.42| 216.00| 4.441
+ synth_one_block ---------->| 20| 109.00| 115.91| 205.00| 4.347
+ synth_one_block:clear ---->| 20| 1.00| 1.65| 18.00| 0.062
+ synth_one_block:one voice->| 1| 11.00| 12.30| 58.00| 0.461
+ synth_one_block:all voices>| 20| 107.00| 112.98| 197.00| 4.237
+ synth_one_block:reverb --->| no profiling available
+ synth_one_block:chorus --->| no profiling available
+ voice:note --------------->| no profiling available
+ voice:release ------------>| no profiling available
+ ------------------------------------------------------------------------------
+ Cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond) and maximum voices
+ ------------------------------------------------------------------------------
+ nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
+ -------|---------|---------|----------|---------|---------|-------------------
+ 20| 4.441| 4.441| 0.000| 0.000| 0.212| 472
+
+Profiling time(mm:ss): Total=0:30 Remainder=0:10, press <ENTER> to cancel
+ ------------------------------------------------------------------------------
+ Duration(microsecond) and cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond)
+ ------------------------------------------------------------------------------
+ Code under profiling |Voices| Duration (microsecond) | Load(%)
+ | nbr| min| avg| max|
+ ---------------------------|------|--------------------------------|----------
+ synth_write_* ------------>| 20| 112.00| 118.64| 244.00| 4.449
+ synth_one_block ---------->| 20| 109.00| 116.12| 234.00| 4.355
+ synth_one_block:clear ---->| 20| 1.00| 1.67| 37.00| 0.062
+ synth_one_block:one voice->| 1| 11.00| 12.31| 63.00| 0.462
+ synth_one_block:all voices>| 20| 107.00| 113.18| 214.00| 4.244
+ synth_one_block:reverb --->| no profiling available
+ synth_one_block:chorus --->| no profiling available
+ voice:note --------------->| no profiling available
+ voice:release ------------>| no profiling available
+ ------------------------------------------------------------------------------
+ Cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond) and maximum voices
+ ------------------------------------------------------------------------------
+ nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
+ -------|---------|---------|----------|---------|---------|-------------------
+ 20| 4.449| 4.449| 0.000| 0.000| 0.212| 471
+Stopping 20 voices...voices stopped.
+> quit
+cheers!
+JackTemporaryException : now quits...
+Jack main caught signal 2
+fluid_profiling_print
+fluidsynth: Estimated times: min/avg/max (micro seconds)
+fluidsynth: synth_write_* ------------>: 112.000/118.636/244.000
+fluidsynth: synth_one_block ---------->: 109.000/116.124/234.000
+fluidsynth: synth_one_block:clear ---->: 1.000/1.665/37.000
+fluidsynth: synth_one_block:one voice->: 11.000/12.309/63.000
+fluidsynth: synth_one_block:all voices>: 107.000/113.180/214.000
+
+*******************************************************************************
+WITH ARM NEON:
+*******************************************************************************
+
+morona@raspberrypi3:~$ fluidsynth -o synth.cpu-cores=4 -o synth.chorus.active=0 -o synth.reverb.active=0 /usr/share/sf2/fluidr3gm.sf2
+> prof_set_print 1
+> prof_set_notes 10
+> prof_start 3 10000
+Generating 10 notes, generated voices:20
+Number of measures(n_prof):3, duration of one mesure(dur):10000ms
+
+Profiling time(mm:ss): Total=0:30 Remainder=0:30, press <ENTER> to cancel
+ ------------------------------------------------------------------------------
+ Duration(microsecond) and cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond)
+ ------------------------------------------------------------------------------
+ Code under profiling |Voices| Duration (microsecond) | Load(%)
+ | nbr| min| avg| max|
+ ---------------------------|------|--------------------------------|----------
+ synth_write_* ------------>| 20| 102.00| 109.21| 213.00| 4.095
+ synth_one_block ---------->| 20| 99.00| 106.68| 201.00| 4.001
+ synth_one_block:clear ---->| 20| 1.00| 1.64| 18.00| 0.062
+ synth_one_block:one voice->| 1| 11.00| 12.30| 54.00| 0.461
+ synth_one_block:all voices>| 20| 97.00| 103.71| 188.00| 3.889
+ synth_one_block:reverb --->| no profiling available
+ synth_one_block:chorus --->| no profiling available
+ voice:note --------------->| no profiling available
+ voice:release ------------>| no profiling available
+ ------------------------------------------------------------------------------
+ Cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond) and maximum voices
+ ------------------------------------------------------------------------------
+ nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
+ -------|---------|---------|----------|---------|---------|-------------------
+ 20| 4.095| 4.095| 0.000| 0.000| 0.194| 514
+
+Profiling time(mm:ss): Total=0:30 Remainder=0:20, press <ENTER> to cancel
+ ------------------------------------------------------------------------------
+ Duration(microsecond) and cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond)
+ ------------------------------------------------------------------------------
+ Code under profiling |Voices| Duration (microsecond) | Load(%)
+ | nbr| min| avg| max|
+ ---------------------------|------|--------------------------------|----------
+ synth_write_* ------------>| 20| 102.00| 109.46| 278.00| 4.105
+ synth_one_block ---------->| 20| 99.00| 106.91| 265.00| 4.009
+ synth_one_block:clear ---->| 20| 1.00| 1.67| 22.00| 0.062
+ synth_one_block:one voice->| 1| 11.00| 12.30| 54.00| 0.461
+ synth_one_block:all voices>| 20| 97.00| 103.94| 251.00| 3.898
+ synth_one_block:reverb --->| no profiling available
+ synth_one_block:chorus --->| no profiling available
+ voice:note --------------->| no profiling available
+ voice:release ------------>| no profiling available
+ ------------------------------------------------------------------------------
+ Cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond) and maximum voices
+ ------------------------------------------------------------------------------
+ nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
+ -------|---------|---------|----------|---------|---------|-------------------
+ 20| 4.105| 4.105| 0.000| 0.000| 0.195| 513
+
+Profiling time(mm:ss): Total=0:30 Remainder=0:10, press <ENTER> to cancel
+ ------------------------------------------------------------------------------
+ Duration(microsecond) and cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond)
+ ------------------------------------------------------------------------------
+ Code under profiling |Voices| Duration (microsecond) | Load(%)
+ | nbr| min| avg| max|
+ ---------------------------|------|--------------------------------|----------
+ synth_write_* ------------>| 20| 102.00| 109.22| 278.00| 4.096
+ synth_one_block ---------->| 20| 99.00| 106.65| 265.00| 3.999
+ synth_one_block:clear ---->| 20| 1.00| 1.67| 22.00| 0.062
+ synth_one_block:one voice->| 1| 11.00| 12.31| 57.00| 0.462
+ synth_one_block:all voices>| 20| 97.00| 103.68| 251.00| 3.888
+ synth_one_block:reverb --->| no profiling available
+ synth_one_block:chorus --->| no profiling available
+ voice:note --------------->| no profiling available
+ voice:release ------------>| no profiling available
+ ------------------------------------------------------------------------------
+ Cpu loads(%) (sr: 48000 Hz, sp: 20.83 microsecond) and maximum voices
+ ------------------------------------------------------------------------------
+ nVoices| total(%)|voices(%)| reverb(%)|chorus(%)| voice(%)|estimated maxVoices
+ -------|---------|---------|----------|---------|---------|-------------------
+ 20| 4.096| 4.096| 0.000| 0.000| 0.194| 514
+Stopping 20 voices...voices stopped.
+> quit
+cheers!
+JackTemporaryException : now quits...
+Jack main caught signal 2
+fluid_profiling_print
+fluidsynth: Estimated times: min/avg/max (micro seconds)
+fluidsynth: synth_write_* ------------>: 102.000/109.216/278.000
+fluidsynth: synth_one_block ---------->: 99.000/106.649/265.000
+fluidsynth: synth_one_block:clear ---->: 1.000/1.666/22.000
+fluidsynth: synth_one_block:one voice->: 11.000/12.307/57.000
+fluidsynth: synth_one_block:all voices>: 97.000/103.681/251.000
+
+Upstream-Status: Inappropriate [embedded-specific]
+
+---
+ src/rvoice/fluid_rvoice_mixer.c | 55 ++++++++++++++++++++++++++++++++-
+ 1 file changed, 54 insertions(+), 1 deletion(-)
+
+diff --git a/src/rvoice/fluid_rvoice_mixer.c b/src/rvoice/fluid_rvoice_mixer.c
+index af0ef75d..07a357c7 100644
+--- a/src/rvoice/fluid_rvoice_mixer.c
++++ b/src/rvoice/fluid_rvoice_mixer.c
+@@ -27,6 +27,9 @@
+ #include "fluid_ladspa.h"
+ #include "fluid_synth.h"
+
++#if defined(__ARM_NEON__)
++#include "arm_neon.h"
++#endif
+
+ // If less than x voices, the thread overhead is larger than the gain,
+ // so don't activate the thread(s).
+@@ -1053,9 +1056,15 @@ fluid_mixer_buffers_mix(fluid_mixer_buffers_t *dst, fluid_mixer_buffers_t *src,
+ int i, j;
+ int scount = current_blockcount * FLUID_BUFSIZE;
+ int minbuf;
++#if defined(__ARM_NEON__) && defined(WITH_FLOAT)
++ fluid_real_t *FLUID_RESTRICT base_src_left;
++ fluid_real_t *FLUID_RESTRICT base_src_right;
++ fluid_real_t *FLUID_RESTRICT base_dst_left;
++ fluid_real_t *FLUID_RESTRICT base_dst_right;
++#else
+ fluid_real_t *FLUID_RESTRICT base_src;
+ fluid_real_t *FLUID_RESTRICT base_dst;
+-
++#endif
+ minbuf = dst->buf_count;
+
+ if(minbuf > src->buf_count)
+@@ -1063,6 +1072,27 @@ fluid_mixer_buffers_mix(fluid_mixer_buffers_t *dst, fluid_mixer_buffers_t *src,
+ minbuf = src->buf_count;
+ }
+
++#if defined(__ARM_NEON__) && defined(WITH_FLOAT)
++ base_src_left = fluid_align_ptr(src->left_buf, FLUID_DEFAULT_ALIGNMENT);
++ base_dst_left = fluid_align_ptr(dst->left_buf, FLUID_DEFAULT_ALIGNMENT);
++ base_src_right = fluid_align_ptr(src->right_buf, FLUID_DEFAULT_ALIGNMENT);
++ base_dst_right = fluid_align_ptr(dst->right_buf, FLUID_DEFAULT_ALIGNMENT);
++
++ for(i = 0; i < minbuf; i++)
++ {
++ for(j = 0; j < scount; j+=4)
++ {
++ int dsp_i = i * FLUID_MIXER_MAX_BUFFERS_DEFAULT * FLUID_BUFSIZE + j;
++
++ float32x4_t vleft = vld1q_f32(&base_dst_left[dsp_i]);
++ float32x4_t vright = vld1q_f32(&base_dst_right[dsp_i]);
++ vleft = vaddq_f32(vleft, vld1q_f32(&base_src_left[dsp_i]));
++ vright = vaddq_f32(vright, vld1q_f32(&base_src_right[dsp_i]));
++ vst1q_f32(&base_dst_left[dsp_i], vleft);
++ vst1q_f32(&base_dst_right[dsp_i], vright);
++ }
++ }
++#else
+ base_src = fluid_align_ptr(src->left_buf, FLUID_DEFAULT_ALIGNMENT);
+ base_dst = fluid_align_ptr(dst->left_buf, FLUID_DEFAULT_ALIGNMENT);
+
+@@ -1090,6 +1120,7 @@ fluid_mixer_buffers_mix(fluid_mixer_buffers_t *dst, fluid_mixer_buffers_t *src,
+ base_dst[dsp_i] += base_src[dsp_i];
+ }
+ }
++#endif
+
+ minbuf = dst->fx_buf_count;
+
+@@ -1098,6 +1129,27 @@ fluid_mixer_buffers_mix(fluid_mixer_buffers_t *dst, fluid_mixer_buffers_t *src,
+ minbuf = src->fx_buf_count;
+ }
+
++#if defined(__ARM_NEON__) && defined(WITH_FLOAT)
++ base_src_left = fluid_align_ptr(src->fx_left_buf, FLUID_DEFAULT_ALIGNMENT);
++ base_dst_left = fluid_align_ptr(dst->fx_left_buf, FLUID_DEFAULT_ALIGNMENT);
++ base_src_right = fluid_align_ptr(src->fx_right_buf, FLUID_DEFAULT_ALIGNMENT);
++ base_dst_right = fluid_align_ptr(dst->fx_right_buf, FLUID_DEFAULT_ALIGNMENT);
++
++ for(i = 0; i < minbuf; i++)
++ {
++ for(j = 0; j < scount; j+=4)
++ {
++ int dsp_i = i * FLUID_MIXER_MAX_BUFFERS_DEFAULT * FLUID_BUFSIZE + j;
++
++ float32x4_t vleft = vld1q_f32(&base_dst_left[dsp_i]);
++ float32x4_t vright = vld1q_f32(&base_dst_right[dsp_i]);
++ vleft = vaddq_f32(vleft, vld1q_f32(&base_src_left[dsp_i]));
++ vright = vaddq_f32(vright, vld1q_f32(&base_src_right[dsp_i]));
++ vst1q_f32(&base_dst_left[dsp_i], vleft);
++ vst1q_f32(&base_dst_right[dsp_i], vright);
++ }
++ }
++#else
+ base_src = fluid_align_ptr(src->fx_left_buf, FLUID_DEFAULT_ALIGNMENT);
+ base_dst = fluid_align_ptr(dst->fx_left_buf, FLUID_DEFAULT_ALIGNMENT);
+
+@@ -1125,6 +1177,7 @@ fluid_mixer_buffers_mix(fluid_mixer_buffers_t *dst, fluid_mixer_buffers_t *src,
+ base_dst[dsp_i] += base_src[dsp_i];
+ }
+ }
++#endif
+ }
+
+
+--
+2.20.1
+
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