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| author |   Andreas Müller <schnitzeltony@gmail.com> | 2017-12-01 12:08:10 +0100 |
|---|---|---|
| committer |   Armin Kuster <akuster808@gmail.com> | 2017-12-11 07:58:56 -0800 |
| commit | da778f933ccf34d01dfe8ca273c2191acfb36ef3 (patch) | |
| tree | 80ee785896568c2fd6d8b64012090a9ad21446aa /meta-multimedia/recipes-multimedia/fluidsynth/files/0001-avoid-buffer-overrun-in-fluid_synth_nwrite_float.patch | |
| parent | c0b74f42e00c84ba8419bc28de564cfa5c8d7987 (diff) | |
| download | meta-openembedded-contrib-da778f933ccf34d01dfe8ca273c2191acfb36ef3.tar.gz | |
fluidsynth: performance improvements
* Use floats instead of double for sound calculations. This improves
performance notable and was default for version 1.1.6 using autotools.
* Fix buffer overrun when using floats
* Make use of ARM NEON for multithreading enabled
Performance and sound correctnes was tested with qtractor and a reworked
version of fluidsynth-dssi [1-2]. Tests were performed for single- and
multithreading enabled.
[1] https://github.com/schnitzeltony/fluidsynth-dssi/commit/bad09c6f5c5508c5f5330aa5188510f975e50c50
[2] https://github.com/schnitzeltony/meta-qt5-extra/blob/master/recipes-misc/recipes-multimedia/fluidsynth/fluidsynth-dssi_1.0.0.bb
Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Diffstat (limited to 'meta-multimedia/recipes-multimedia/fluidsynth/files/0001-avoid-buffer-overrun-in-fluid_synth_nwrite_float.patch')
| -rw-r--r-- | meta-multimedia/recipes-multimedia/fluidsynth/files/0001-avoid-buffer-overrun-in-fluid_synth_nwrite_float.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/meta-multimedia/recipes-multimedia/fluidsynth/files/0001-avoid-buffer-overrun-in-fluid_synth_nwrite_float.patch b/meta-multimedia/recipes-multimedia/fluidsynth/files/0001-avoid-buffer-overrun-in-fluid_synth_nwrite_float.patch new file mode 100644 index 0000000000..dda76cfee6 --- /dev/null +++ b/meta-multimedia/recipes-multimedia/fluidsynth/files/0001-avoid-buffer-overrun-in-fluid_synth_nwrite_float.patch @@ -0,0 +1,32 @@ +From a13cb63103aa56b5e8bad816c7d13d6e01c0cd9f Mon Sep 17 00:00:00 2001 +From: derselbst <tom.mbrt@googlemail.com> +Date: Sun, 26 Nov 2017 22:12:12 +0100 +Subject: [PATCH 1/2] avoid buffer overrun in fluid_synth_nwrite_float() + +Upstream-Status: Backport [1] + +[1] https://github.com/FluidSynth/fluidsynth/commit/a13cb63103aa56b5e8bad816c7d13d6e01c0cd9f +--- + src/synth/fluid_synth.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/src/synth/fluid_synth.c b/src/synth/fluid_synth.c +index 266d759..14f6b21 100644 +--- a/src/synth/fluid_synth.c ++++ b/src/synth/fluid_synth.c +@@ -2752,10 +2752,10 @@ fluid_synth_nwrite_float(fluid_synth_t* synth, int len, + { + #ifdef WITH_FLOAT + if(fx_left != NULL) +- FLUID_MEMCPY(fx_left[i + count], fx_left_in[i], bytes); ++ FLUID_MEMCPY(fx_left[i] + count, fx_left_in[i], bytes); + + if(fx_right != NULL) +- FLUID_MEMCPY(fx_right[i + count], fx_right_in[i], bytes); ++ FLUID_MEMCPY(fx_right[i] + count, fx_right_in[i], bytes); + #else //WITH_FLOAT + int j; + if(fx_left != NULL) { +-- +2.9.5 + |