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-rw-r--r--meta-multimedia/recipes-multimedia/fluidsynth/fluidsynth/0002-fluid_synth_nwrite_float-Allow-zero-pointer-for-left.patch178
1 files changed, 178 insertions, 0 deletions
diff --git a/meta-multimedia/recipes-multimedia/fluidsynth/fluidsynth/0002-fluid_synth_nwrite_float-Allow-zero-pointer-for-left.patch b/meta-multimedia/recipes-multimedia/fluidsynth/fluidsynth/0002-fluid_synth_nwrite_float-Allow-zero-pointer-for-left.patch
new file mode 100644
index 0000000000..f7debc5ad4
--- /dev/null
+++ b/meta-multimedia/recipes-multimedia/fluidsynth/fluidsynth/0002-fluid_synth_nwrite_float-Allow-zero-pointer-for-left.patch
@@ -0,0 +1,178 @@
+From 300977537b6056bdbbba9df9100fa6e891ca1f44 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andreas=20M=C3=BCller?= <schnitzeltony@gmail.com>
+Date: Mon, 17 Dec 2018 14:08:45 +0100
+Subject: [PATCH 2/2] fluid_synth_nwrite_float: Allow zero pointer for
+ left/right and zero pointer in arrays
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+With this modification a client can define exactly what it wants to get into
+buffers to avoid useless copying of data. On weak machines this leads to measurable
+performance wins.
+
+Upstream-Status: Submitted [1]
+
+[1] https://github.com/FluidSynth/fluidsynth/pull/490
+
+Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>
+---
+ src/synth/fluid_synth.c | 69 ++++++++++++++++++++++++++++-------------
+ 1 file changed, 48 insertions(+), 21 deletions(-)
+
+diff --git a/src/synth/fluid_synth.c b/src/synth/fluid_synth.c
+index 1eb5d737..6c876efa 100644
+--- a/src/synth/fluid_synth.c
++++ b/src/synth/fluid_synth.c
+@@ -3628,10 +3628,10 @@ fluid_synth_program_reset(fluid_synth_t *synth)
+ *
+ * @param synth FluidSynth instance
+ * @param len Count of audio frames to synthesize
+- * @param left Array of float buffers to store left channel of planar audio (as many as \c synth.audio-channels buffers, each of \c len in size)
+- * @param right Array of float buffers to store right channel of planar audio (size: dito)
+- * @param fx_left Since 1.1.7: If not \c NULL, array of float buffers to store left effect channels (as many as \c synth.effects-channels buffers, each of \c len in size)
+- * @param fx_right Since 1.1.7: If not \c NULL, array of float buffers to store right effect channels (size: dito)
++ * @param left Array of float buffers to store left channel of planar audio (as many as \c synth.audio-channels buffers, each of \c len in size). Since 2.0.3: NULL allowed / NULL allowed for array entry
++ * @param right Array of float buffers to store right channel of planar audio (size: dito). Since 2.0.3: NULL allowed / NULL allowed for array entry
++ * @param fx_left Since 1.1.7: If not \c NULL, array of float buffers to store left effect channels (as many as \c synth.effects-channels buffers, each of \c len in size). Since 2.0.3: NULL allowed for array entry
++ * @param fx_right Since 1.1.7: If not \c NULL, array of float buffers to store right effect channels (size: dito). Since 2.0.3: NULL allowed for array entry
+ * @return #FLUID_OK on success, #FLUID_FAILED otherwise
+ *
+ * First effect channel used by reverb, second for chorus.
+@@ -3719,15 +3719,27 @@ fluid_synth_nwrite_float(fluid_synth_t *synth, int len,
+ for(i = 0; i < synth->audio_channels; i++)
+ {
+ #ifdef WITH_FLOAT
+- FLUID_MEMCPY(left[i], &left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + synth->cur], bytes);
+- FLUID_MEMCPY(right[i], &right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + synth->cur], bytes);
++ if(left != NULL && left[i] != NULL)
++ {
++ FLUID_MEMCPY(left[i], &left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + synth->cur], bytes);
++ }
++ if(right != NULL && right[i] != NULL)
++ {
++ FLUID_MEMCPY(right[i], &right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + synth->cur], bytes);
++ }
+ #else //WITH_FLOAT
+ int j;
+
+ for(j = 0; j < num; j++)
+ {
+- left[i][j] = (float) left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + j + synth->cur];
+- right[i][j] = (float) right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + j + synth->cur];
++ if(left != NULL && left[i] != NULL)
++ {
++ left[i][j] = (float) left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + j + synth->cur];
++ }
++ if(right != NULL && right[i] != NULL)
++ {
++ right[i][j] = (float) right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + j + synth->cur];
++ }
+ }
+
+ #endif //WITH_FLOAT
+@@ -3737,12 +3749,12 @@ fluid_synth_nwrite_float(fluid_synth_t *synth, int len,
+ {
+ #ifdef WITH_FLOAT
+
+- if(fx_left != NULL)
++ if(fx_left != NULL && fx_left[i] != NULL)
+ {
+ FLUID_MEMCPY(fx_left[i], &fx_left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + synth->cur], bytes);
+ }
+
+- if(fx_right != NULL)
++ if(fx_right != NULL && fx_right[i] != NULL)
+ {
+ FLUID_MEMCPY(fx_right[i], &fx_right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + synth->cur], bytes);
+ }
+@@ -3750,7 +3762,7 @@ fluid_synth_nwrite_float(fluid_synth_t *synth, int len,
+ #else //WITH_FLOAT
+ int j;
+
+- if(fx_left != NULL)
++ if(fx_left != NULL && fx_left[i] != NULL)
+ {
+ for(j = 0; j < num; j++)
+ {
+@@ -3758,7 +3770,7 @@ fluid_synth_nwrite_float(fluid_synth_t *synth, int len,
+ }
+ }
+
+- if(fx_right != NULL)
++ if(fx_right != NULL && fx_right[i] != NULL)
+ {
+ for(j = 0; j < num; j++)
+ {
+@@ -3789,15 +3801,30 @@ fluid_synth_nwrite_float(fluid_synth_t *synth, int len,
+ for(i = 0; i < synth->audio_channels; i++)
+ {
+ #ifdef WITH_FLOAT
+- FLUID_MEMCPY(left[i] + count, &left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT], bytes);
+- FLUID_MEMCPY(right[i] + count, &right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT], bytes);
++ if(left != NULL && left[i] != NULL)
++ {
++ FLUID_MEMCPY(left[i] + count, &left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT], bytes);
++ }
++ if(right != NULL && right[i] != NULL)
++ {
++ FLUID_MEMCPY(right[i] + count, &right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT], bytes);
++ }
+ #else //WITH_FLOAT
+ int j;
+
+- for(j = 0; j < num; j++)
++ if(left != NULL && left[i] != NULL)
++ {
++ for(j = 0; j < num; j++)
++ {
++ left[i][j + count] = (float) left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + j];
++ }
++ }
++ if(right != NULL && right[i] != NULL)
+ {
+- left[i][j + count] = (float) left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + j];
+- right[i][j + count] = (float) right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + j];
++ for(j = 0; j < num; j++)
++ {
++ right[i][j + count] = (float) right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT + j];
++ }
+ }
+
+ #endif //WITH_FLOAT
+@@ -3807,12 +3834,12 @@ fluid_synth_nwrite_float(fluid_synth_t *synth, int len,
+ {
+ #ifdef WITH_FLOAT
+
+- if(fx_left != NULL)
++ if(fx_left != NULL && fx_left[i] != NULL)
+ {
+ FLUID_MEMCPY(fx_left[i] + count, &fx_left_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT], bytes);
+ }
+
+- if(fx_right != NULL)
++ if(fx_right != NULL && fx_right[i] != NULL)
+ {
+ FLUID_MEMCPY(fx_right[i] + count, &fx_right_in[i * FLUID_BUFSIZE * FLUID_MIXER_MAX_BUFFERS_DEFAULT], bytes);
+ }
+@@ -3820,7 +3847,7 @@ fluid_synth_nwrite_float(fluid_synth_t *synth, int len,
+ #else //WITH_FLOAT
+ int j;
+
+- if(fx_left != NULL)
++ if(fx_left != NULL && fx_left[i] != NULL)
+ {
+ for(j = 0; j < num; j++)
+ {
+@@ -3828,7 +3855,7 @@ fluid_synth_nwrite_float(fluid_synth_t *synth, int len,
+ }
+ }
+
+- if(fx_right != NULL)
++ if(fx_right != NULL && fx_right[i] != NULL)
+ {
+ for(j = 0; j < num; j++)
+ {
+--
+2.14.5
+
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-10 04:42:32 +0000