C++ (Cpp) qalGenFilters Examples

Example #1

File: openal.c Project: teistiz/yquake2

/*
 * Set up the underwater filter
 */
static void
AL_InitUnderwaterFilter()
{
    underwaterFilter = 0;

    if (!(qalGenFilters && qalFilteri && qalFilterf && qalDeleteFilters))
        return;

	/* Generate a filter */
	qalGenFilters(1, &underwaterFilter);

	if (qalGetError() != AL_NO_ERROR)
	{
		Com_Printf("Couldn't generate an OpenAL filter!\n");
		return;
	}

	/* Low pass filter for underwater effect */
	qalFilteri(underwaterFilter, AL_FILTER_TYPE, AL_FILTER_LOWPASS);

	if (qalGetError() != AL_NO_ERROR)
	{
		Com_Printf("Low pass filter is not supported!\n");
		return;
	}

    qalFilterf(underwaterFilter, AL_LOWPASS_GAIN, AL_LOWPASS_DEFAULT_GAIN);

    s_underwater->modified = true;
    s_underwater_gain_hf->modified = true;
}

Example #2

File: snd_al.c Project: buvk/yquake2

static void
AL_InitUnderwaterFilter()
{
#if defined (__APPLE__)
	return;
#else
	/* Generate a filter */
	qalGenFilters(1, &underwaterFilter);

	if (qalGetError() != AL_NO_ERROR)
	{
		Com_Printf("Couldn't generate an OpenAL filter!\n");
		return;
	}

	/* Low pass filter for underwater effect */
	qalFilteri(underwaterFilter, AL_FILTER_TYPE, AL_FILTER_LOWPASS);

	if (qalGetError() != AL_NO_ERROR)
	{
		Com_Printf("Low pass filter is not supported!\n");
		return;
	}

	/* The effect */
	qalFilterf(underwaterFilter, AL_LOWPASS_GAIN, 1.5);
	qalFilterf(underwaterFilter, AL_LOWPASS_GAINHF, 0.25);
#endif
}

Example #3

File: snd_al.c Project: Nekrofage/Quake2RPi

static void AL_InitUnderwaterFilter()
{
	// Generate a filter
	qalGenFilters(1, &underwaterFilter);

	if (qalGetError() != AL_NO_ERROR)
	{
		Com_Printf("Couldn't generate an OpenAL filter!\n");
		return;
	}

	// Low pass filter for underwater effect
	qalFilteri(underwaterFilter, AL_FILTER_TYPE, AL_FILTER_LOWPASS);

	if (qalGetError() != AL_NO_ERROR)
	{
		Com_Printf("Low pass filter is not supported!\n");
		return;
	}

	// The effect
	qalFilterf(underwaterFilter, AL_LOWPASS_GAIN, 1.5);
	qalFilterf(underwaterFilter, AL_LOWPASS_GAINHF, 0.25);
}