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#added soundcone functionality to sound manager.

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#refs 138
added params to VSrc to hold sound cone info.
added set_snd_cone() function to snd_mgr.
updated vsrc_latch()

This was SVN commit r4549.
This commit is contained in:
nd3c3nt 2006-10-12 07:33:40 +00:00
parent 12f49cc383
commit a8840ac0b4
2 changed files with 60 additions and 0 deletions
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46
source/lib/res/sound/snd_mgr.cpp
View File

@ -1534,6 +1534,11 @@ struct VSrc
ALboolean loop;
ALboolean relative;
// AL cone properties
ALfloat cone_inner;
ALfloat cone_outer;
ALfloat cone_gain;
/// controls vsrc_update behavior (VSrcFlags)
uint flags;
@ -1831,6 +1836,10 @@ static void vsrc_latch(VSrc * vs)
alSourcef (vs->al_src, AL_PITCH, vs->pitch);
alSourcei (vs->al_src, AL_LOOPING, vs->loop);
alSourcef (vs->al_src, AL_CONE_INNER_ANGLE, vs->cone_inner);
alSourcef (vs->al_src, AL_CONE_OUTER_ANGLE, vs->cone_outer);
alSourcef (vs->al_src, AL_CONE_OUTER_GAIN, vs->cone_gain);
AL_CHECK;
}
@ -2204,6 +2213,43 @@ LibError snd_fade(Handle hvs, float initial_gain, float final_gain,
return INFO::OK;
}
/**
* set sound cone information
*
* cone_inner and cone_outer should be in the range 0.0 - 360.0,
* cone_gain (which is the outer cone gain) should range from 0.0 - 1.0
* @param cone_inner inner angle of sound cone
* @param cone_outer outer angle of sound cone
* @param cone_gain outer cone gain
* @return LibError
**/
LibError snd_set_cone(Handle hvs, const float cone_inner, const float cone_outer, const float cone_gain)
{
H_DEREF(hvs, VSrc, vs);
if(cone_inner <= 0.0f || cone_inner >= 360.0f)
WARN_RETURN(ERR::INVALID_PARAM);
if(cone_outer <= 0.0f || cone_outer >= 360.0f)
WARN_RETURN(ERR::INVALID_PARAM);
if(cone_gain <= 0.0f || cone_gain >= 1.0f)
WARN_RETURN(ERR::INVALID_PARAM);
// set parameters in vsrc
vs->cone_inner = cone_inner;
vs->cone_outer = cone_outer;
vs->cone_gain = cone_gain;
vsrc_latch(vs);
return INFO::OK;
}
///////////////////////////////////////////////////////////////////////////////
//

14
source/lib/res/sound/snd_mgr.h
View File

@ -342,6 +342,20 @@ extern LibError snd_disable(bool disabled);
**/
extern LibError snd_update(const float* pos, const float* dir, const float* up);
/**
* set sound cone information
*
* cone_inner and cone_outer should be in the range 0.0 - 360.0,
* cone_gain (which is the outer cone gain) should range from 0.0 - 1.0
* @param cone_inner inner angle of sound cone
* @param cone_outer outer angle of sound cone
* @param cone_gain outer cone gain
* @return LibError
**/
extern LibError snd_set_cone(Handle hvs, const float cone_inner, const float cone_outer, const float cone_gain);
/**
* free all resources and shut down the sound system.
* call before h_mgr_shutdown.