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don't modify s_alDevice and add fallback to let openAL choose the device

This commit is contained in:
Ludwig Nussel 2009-05-08 09:13:06 +00:00
parent de19303320
commit b35c63f37a
1 changed files with 15 additions and 24 deletions
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39
code/client/snd_openal.c
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@ -1715,7 +1715,6 @@ static cvar_t *s_alCapture;
#ifdef _WIN32
#define ALDRIVER_DEFAULT "OpenAL32.dll"
#define ALDEVICE_DEFAULT "Generic Software"
#elif defined(MACOS_X)
#define ALDRIVER_DEFAULT "/System/Library/Frameworks/OpenAL.framework/OpenAL"
#else
@ -1965,8 +1964,7 @@ S_AL_Init
qboolean S_AL_Init( soundInterface_t *si )
{
#ifdef USE_OPENAL
qboolean enumsupport, founddev = qfalse;
const char* device = NULL;
int i;
if( !si ) {
@ -1992,6 +1990,8 @@ qboolean S_AL_Init( soundInterface_t *si )
s_alDriver = Cvar_Get( "s_alDriver", ALDRIVER_DEFAULT, CVAR_ARCHIVE | CVAR_LATCH );
s_alDevice = Cvar_Get("s_alDevice", "", CVAR_ARCHIVE | CVAR_LATCH);
// Load QAL
if( !QAL_Init( s_alDriver->string ) )
{
@ -1999,8 +1999,12 @@ qboolean S_AL_Init( soundInterface_t *si )
return qfalse;
}
device = s_alDevice->string;
if(device && !*device)
device = NULL;
// Device enumeration support (extension is implemented reasonably only on Windows right now).
if((enumsupport = qalcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT")))
if(qalcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT"))
{
char devicenames[1024] = "";
const char *devicelist;
@ -2016,11 +2020,9 @@ qboolean S_AL_Init( soundInterface_t *si )
// Generic Software as that one works more reliably with various sound systems.
// If it's not, use OpenAL's default selection as we don't want to ignore
// native hardware acceleration.
if(!strcmp(defaultdevice, "Generic Hardware"))
s_alDevice = Cvar_Get("s_alDevice", ALDEVICE_DEFAULT, CVAR_ARCHIVE | CVAR_LATCH);
else
if(!device && !strcmp(defaultdevice, "Generic Hardware"))
device = "Generic Software";
#endif
s_alDevice = Cvar_Get("s_alDevice", defaultdevice, CVAR_ARCHIVE | CVAR_LATCH);
// dump a list of available devices to a cvar for the user to see.
while((curlen = strlen(devicelist)))
@ -2028,26 +2030,18 @@ qboolean S_AL_Init( soundInterface_t *si )
Q_strcat(devicenames, sizeof(devicenames), devicelist);
Q_strcat(devicenames, sizeof(devicenames), "\n");
// check whether the device we want to load is available at all.
if(!strcmp(s_alDevice->string, devicelist))
founddev = qtrue;
devicelist += curlen + 1;
}
s_alAvailableDevices = Cvar_Get("s_alAvailableDevices", devicenames, CVAR_ROM | CVAR_NORESTART);
if(!founddev)
{
Cvar_ForceReset("s_alDevice");
founddev = 1;
}
}
if(founddev)
alDevice = qalcOpenDevice(s_alDevice->string);
else
alDevice = qalcOpenDevice(device);
if( !alDevice && device )
{
Com_Printf( "Failed to open OpenAL device '%s', trying default.\n", device );
alDevice = qalcOpenDevice(NULL);
}
if( !alDevice )
{
@ -2056,9 +2050,6 @@ qboolean S_AL_Init( soundInterface_t *si )
return qfalse;
}
if(enumsupport)
Cvar_Set("s_alDevice", qalcGetString(alDevice, ALC_DEVICE_SPECIFIER));
// Create OpenAL context
alContext = qalcCreateContext( alDevice, NULL );
if( !alContext )