fhandler_dsp.cc (fhandler_dev_dsp::ioctl): add SNDCTL_DSP_GETFMTS support

[David Huang]

Make code like this work:

	/* Get a list of supported hardware formats */
	if ( ioctl(audio_fd, SNDCTL_DSP_GETFMTS, &value) < 0 ) {
		SDL_SetError("Couldn't get audio format list");
		return(-1);
	}
(from SDL-1.2.5/src/audio/dsp/SDL_dspaudio.c, yes, seems like *Native* cygwin libSDL works)


I don't know exactly which hardware formats can the /dev/dsp audio device support,
but looks like it supports AFMT_S16_LE, AFMT_U8 and AFMT_S8.

Thanks.


2003-01-14  David Huang  <davehzhr@hotmail.com>

	* fhandler_dsp.cc (fhandler_dsp::ioctl): Add SNDCTL_DSP_GETFMTS
	limited support.








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