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Add AL_METERS_PER_UNIT listener property

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This commit is contained in:
Chris Robinson 2007-12-17 19:40:43 -08:00
parent 9ebf1c1431
commit 28f80fa113
4 changed files with 26 additions and 0 deletions
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1
Alc/ALc.c
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@ -340,6 +340,7 @@ static ALvoid InitContext(ALCcontext *pContext)
{
//Initialise listener
pContext->Listener.Gain = 1.0f;
pContext->Listener.MetersPerUnit = 1.0f;
pContext->Listener.Position[0] = 0.0f;
pContext->Listener.Position[1] = 0.0f;
pContext->Listener.Position[2] = 0.0f;

2
Alc/ALu.c
View File

@ -167,6 +167,7 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource,
ALfloat Matrix[3][3];
ALint HeadRelative;
ALfloat flAttenuation;
ALfloat MetersPerUnit;
//Get context properties
DopplerFactor = ALContext->DopplerFactor;
@ -176,6 +177,7 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource,
//Get listener properties
ListenerGain = ALContext->Listener.Gain;
MetersPerUnit = ALContext->Listener.MetersPerUnit;
memcpy(ListenerPosition, ALContext->Listener.Position, sizeof(ALContext->Listener.Position));
memcpy(ListenerVelocity, ALContext->Listener.Velocity, sizeof(ALContext->Listener.Velocity));
memcpy(&ListenerOrientation[0], ALContext->Listener.Forward, sizeof(ALContext->Listener.Forward));

1
OpenAL32/Include/alListener.h
View File

@ -16,6 +16,7 @@ typedef struct ALlistener_struct
ALfloat Forward[3];
ALfloat Up[3];
ALfloat Gain;
ALfloat MetersPerUnit;
} ALlistener;
#ifdef __cplusplus

22
OpenAL32/alListener.c
View File

@ -41,6 +41,13 @@ ALAPI ALvoid ALAPIENTRY alListenerf(ALenum eParam, ALfloat flValue)
alSetError(AL_INVALID_VALUE);
break;
case AL_METERS_PER_UNIT:
if (flValue > 0.0f)
pContext->Listener.MetersPerUnit = flValue;
else
alSetError(AL_INVALID_VALUE);
break;
default:
alSetError(AL_INVALID_ENUM);
break;
@ -112,6 +119,13 @@ ALAPI ALvoid ALAPIENTRY alListenerfv(ALenum eParam, const ALfloat *pflValues)
alSetError(AL_INVALID_VALUE);
break;
case AL_METERS_PER_UNIT:
if (pflValues[0] > 0.0f)
pContext->Listener.MetersPerUnit = pflValues[0];
else
alSetError(AL_INVALID_VALUE);
break;
case AL_POSITION:
pContext->Listener.Position[0] = pflValues[0];
pContext->Listener.Position[1] = pflValues[1];
@ -274,6 +288,10 @@ ALAPI ALvoid ALAPIENTRY alGetListenerf(ALenum eParam, ALfloat *pflValue)
*pflValue = pContext->Listener.Gain;
break;
case AL_METERS_PER_UNIT:
*pflValue = pContext->Listener.MetersPerUnit;
break;
default:
alSetError(AL_INVALID_ENUM);
break;
@ -350,6 +368,10 @@ ALAPI ALvoid ALAPIENTRY alGetListenerfv(ALenum eParam, ALfloat *pflValues)
pflValues[0] = pContext->Listener.Gain;
break;
case AL_METERS_PER_UNIT:
pflValues[0] = pContext->Listener.MetersPerUnit;
break;
case AL_POSITION:
pflValues[0] = pContext->Listener.Position[0];
pflValues[1] = pContext->Listener.Position[1];