opnsense-ports/audio/faudio/files/patch-src_FAudio__platform__sdl2.c
Franco Fichtner 26b78bb594 */*: sync with upstream
Taken from: HardenedBSD
2020-04-11 20:59:34 +02:00

23 lines
720 B
C

https://github.com/FNA-XNA/FAudio/issues/183
--- src/FAudio_platform_sdl2.c.orig 2020-04-01 14:55:30 UTC
+++ src/FAudio_platform_sdl2.c
@@ -100,6 +100,18 @@ void FAudio_PlatformInit(
want.samples = want.freq / 100;
}
+ /* SDL audio with arts/dsp backends expect ^2, so round up.
+ * For 48KHz this should be 512.
+ * https://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
+ */
+ want.samples--;
+ want.samples |= want.samples >> 1;
+ want.samples |= want.samples >> 2;
+ want.samples |= want.samples >> 4;
+ want.samples |= want.samples >> 8;
+ want.samples |= want.samples >> 16;
+ want.samples++;
+
/* Open the device (or at least try to) */
iosretry:
device = SDL_OpenAudioDevice(