Editors Note: The original patch was modified to use SDL_Delay() instead of nanosleep because nanosleep may not be portable to all systems using SDL with the ALSA backend. This may be a moot point with the switch to blocking writes anyway... Date: Sat, 27 Dec 2003 21:47:36 +0100 From: Michel Daenzer To: Debian Bug Tracking System Subject: [SDL] Bug#225252: [PATCH] ALSA fixes Package: libsdl1.2debian-all Version: 1.2.6-2 Severity: normal Tags: patch For SDL 1.2.6, the ALSA backend was changed to call snd_pcm_open() with SND_PCM_NONBLOCK. That's a good idea per se, however, it causes high CPU usage, interrupted sound and stuttering in some games here. Taking a nanosleep whenever snd_pcm_writei() returns -EAGAIN fixes this, but I think it's more efficient to use blocking mode for the actual sound playback. Feedback from the SDL and ALSA lists appreciated. The patch also fixes the default ALSA device to be used.

# On OS X, install the SDLMain.nib.
# We use an ugly hack to force the creation of the
# destination dir, maybe somebody with more automake
# experience knows how to do this properly?

if TARGET_MACOSX
hackhacknibdatadir = $(nibdatadir)/SDLMain.nib
hackhacknibdata_DATA = info.nib

nibdatadir = $(datadir)/sdl
nibdata_DATA =			\
	SDLMain.nib/classes.nib	\
	SDLMain.nib/info.nib	\
	SDLMain.nib/objects.nib	\
	Info.plist
endif

EXTRA_DIST = SDLMain.h SDLMain.m info.nib

# The nib and exports directories need to be copied into place
# when building a distribution.
dist-hook:
	cp -rp SDLMain.nib $(distdir)
	cp -rp exports $(distdir)
	(cd $(distdir) && rm -rf `find . -name CVS`)