stutteringly sound

[f-bert]

ok if i would renice the process:

renice [ufoai] -15

then the sound works fine in the game. but so i will get stutteringly menues.
maybe there is something wrong with the priority of the sound thread!?

daniel

[Mattn]

which driver? alsa, oss, sdl?

[f-bert]

i used alsa on ubuntu dapper.
the both other dirver oss and sdl doesn't work.
but it should normaly, because i have emu10k sound chip with hardware mixing....

[Mattn]

for oss try this:

Code: [Select]


echo "ufo 0 0 direct" > /proc/asound/card0/pcm0p/oss


for sdl you can set the audiodriver via an environment var:
available drivers (may differ - depends on how sdl-libs are compiled by you or your vendor)

Code: [Select]


openbsd (OpenBSD)
dsp (OSS /dev/dsp: Linux, Solaris, BSD etc)
alsa (Linux)
audio (Unix style /dev/audio: SunOS, Solaris etc)
AL (Irix)
artsc (ARTS audio daemon)
esd (esound audio daemon)
nas (NAS audio daemon)
dma (OSS /dev/dsp, using DMA)
dsound (Win32 DirectX)
waveout (Win32 WaveOut)
baudio (BeOS)
sndmgr (MacOS SoundManager)
paud (AIX)
AHI (Amiga)


out this into your ufo-ai wrapper

Code: [Select]


export SDL_AUDIO_DRIVER [driver_from_list_above]


[Mattn]

forgot about one thing: there is a second approach to implement alsa. rename the current snd_aksa.c in src/linux to and snd_alsa.c.tmp or somthing and then rename the snd_alsa.c.new to snd_alsa.c

i´ve not tested this driver for quit a long time - but maybe it will work for you - please give feedback,

[f-bert]

thanks for help

i had build the last trunk svn version but there where some other truppels. i used there alsa.c.new but the sound stuttering.
with sdl btw. oss i got no voice from the speaker.

is it compatible with  x.org 7 ?

[Mattn]

i´m not sure whether it is compatible - i use the "old" xfree that ships with debian. why? doesn´t it compile? give me error messages, please

[f-bert]

it compiles fine. i dont now why it is lacking... maybe you can test it on ubuntu dapper.

[Bandobras]

> is it compatible with x.org 7 ?

Yes, it is. I run it with Debian unstable.

[bullfrog]

Hey guys!!
First post, have to say: thank you so much for all that you are doing!!
This game is great!!
I have some coding skill but don't think good enough for actually working on the game code! Will try to help doing some "low skill" things... and reporting bugs, of course!

Now, something serious...
I'm experiencing the same problem with the ALSA sound driver: the .ogg are played at a ultrafast speed. Switching to SDL solve the problem. So, would say this is a low priority. I tried to use the snd_alsa.c.new but i couldn't compile:
.
.
.
 * [UFO] ../debugi386/client/snd_alsa.o
ports/linux/snd_alsa.c: In function 'ALSA_SNDDMA_Init':
ports/linux/snd_alsa.c:49: error: expected expression before '/' token
ports/linux/snd_alsa.c:56: error: 'false' undeclared (first use in this function)
ports/linux/snd_alsa.c:56: error: (Each undeclared identifier is reported only once
ports/linux/snd_alsa.c:56: error: for each function it appears in.)
ports/linux/snd_alsa.c:79: error: expected expression before '/' token
ports/linux/snd_alsa.c:81: error: expected expression before '/' token
ports/linux/snd_alsa.c:89: error: expected expression before '/' token
ports/linux/snd_alsa.c:99: error: expected expression before '/' token
ports/linux/snd_alsa.c:103: warning: pointer targets in passing argument 3 of 'snd_pcm_hw_params_set_rate_near' differ in signedness
ports/linux/snd_alsa.c:105: error: expected expression before '/' token
ports/linux/snd_alsa.c:111: error: expected expression before '/' token
ports/linux/snd_alsa.c:128: error: expected expression before '/' token
ports/linux/snd_alsa.c:137: error: expected expression before '/' token
ports/linux/snd_alsa.c:170: error: expected expression before '/' token
ports/linux/snd_alsa.c:179: error: 'true' undeclared (first use in this function)
ports/linux/snd_alsa.c:45: warning: unused variable 'i'
ports/linux/snd_alsa.c:180: warning: control reaches end of non-void function
ports/linux/snd_alsa.c: In function 'ALSA_SNDDMA_Submit':
ports/linux/snd_alsa.c:224: error: expected expression before '/' token
ports/linux/snd_alsa.c:225: error: expected expression before '/' token
ports/linux/snd_alsa.c:229: error: expected expression before '/' token
ports/linux/snd_alsa.c:232: error: expected expression before '/' token
make[1]: *** [../debugi386/client/snd_alsa.o] Error 1
make: *** [build_debug] Error 2

So, I fixed all the comments from //comment to /*comment*/ and the true/false constants to qtrue/qfalse (in this case I just guessed... LOL, no idea about that!).
Anyway, I managed to compile it getting just a:
 * [UFO] ../debugi386/client/snd_alsa.o
ports/linux/snd_alsa.c: In function 'ALSA_SNDDMA_Init':
ports/linux/snd_alsa.c:103: warning: pointer targets in passing argument 3 of 'snd_pcm_hw_params_set_rate_near' differ in signedness
ports/linux/snd_alsa.c:118: warning: pointer targets in passing argument 3 of 'snd_pcm_hw_params_set_rate_near' differ in signedness

I think that this file needs more work as the alsa sound was wrong (guess the wrong things are going in the buffer) but I could hear the original music. The speed is better but is still faster than with SDL.

Hope all this will be useful.

Ops, forgot:
Version: trunk (just updated)
OS: linux debian unstable (kernel 2.6.16.20)

Keep up the good work!!