MFC r318820:

Increase the allowed maximum number of audio channels from 31 to 127
in the PCM feeder mixer. Without this change a value of 32 channels is
treated like zero, due to using a mask of 0x1f, causing a kernel
assert when trying to playback bitperfect 32-channel audio. Also
update the AWK script which is generating the division tables to
handle more than 18 channels. This commit complements r282650.

1 files changed, 3 insertions, 3 deletions

diff --git a/sys/tools/sound/snd_fxdiv_gen.awk b/sys/tools/sound/snd_fxdiv_gen.awk
index 5828062..2e1d3a5 100644
--- a/sys/tools/sound/snd_fxdiv_gen.awk
+++ b/sys/tools/sound/snd_fxdiv_gen.awk
@@ -74,7 +74,7 @@ BEGIN {
 	FXSHIFT = 16;
 	FXONE   = shl(1, FXSHIFT);
 
-	SND_CHN_MAX = 18;
+	SND_CHN_MAX = 127;
 
 	PCM_8_BPS  = 1;
 	PCM_16_BPS = 2;
@@ -103,9 +103,9 @@ BEGIN {
 	printf("/*\n");
 	printf(" * Fast unsigned 32bit integer division and rounding, accurate for\n");
 	printf(" * x = 1 - %d. This table should be enough to handle possible\n", FXONE);
-	printf(" * division for 1 - 72 (more can be generated though..).\n");
+	printf(" * division for 1 - 508 (more can be generated though..).\n");
 	printf(" *\n");
-	printf(" * 72 = SND_CHN_MAX * PCM_32_BPS, which is why....\n");
+	printf(" * 508 = SND_CHN_MAX * PCM_32_BPS, which is why....\n");
 	printf(" */\n\n");
 
 	printf("static const uint32_t snd_fxdiv_table[][2] = {\n");