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dsound: Support quadraphonic sound.

This commit is contained in:
Mark Harmstone 2015-01-06 19:27:10 +00:00 committed by Alexandre Julliard
parent b81e79ed08
commit 3ba100d81c
5 changed files with 51 additions and 3 deletions
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13
dlls/dsound/dsound.c
View File

@ -606,6 +606,19 @@ void DSOUND_ParseSpeakerConfig(DirectSoundDevice *device)
device->lfe_channel = -1;
break;
case DSSPEAKER_QUAD:
device->speaker_angles[0] = M_PI/180.0f * -135.0f;
device->speaker_angles[1] = M_PI/180.0f * -45.0f;
device->speaker_angles[2] = M_PI/180.0f * 45.0f;
device->speaker_angles[3] = M_PI/180.0f * 135.0f;
device->speaker_num[0] = 2; /* Rear left */
device->speaker_num[1] = 0; /* Front left */
device->speaker_num[2] = 1; /* Front right */
device->speaker_num[3] = 3; /* Rear right */
device->num_speakers = 4;
device->lfe_channel = -1;
break;
default:
WARN("unknown speaker_config %u\n", device->speaker_config);
}

19
dlls/dsound/dsound_convert.c
View File

@ -165,6 +165,25 @@ void put_mono2stereo(const IDirectSoundBufferImpl *dsb, DWORD pos, DWORD channel
dsb->put_aux(dsb, pos, 1, value);
}
void put_mono2quad(const IDirectSoundBufferImpl *dsb, DWORD pos, DWORD channel, float value)
{
dsb->put_aux(dsb, pos, 0, value);
dsb->put_aux(dsb, pos, 1, value);
dsb->put_aux(dsb, pos, 2, value);
dsb->put_aux(dsb, pos, 3, value);
}
void put_stereo2quad(const IDirectSoundBufferImpl *dsb, DWORD pos, DWORD channel, float value)
{
if (channel == 0) { /* Left */
dsb->put_aux(dsb, pos, 0, value); /* Front left */
dsb->put_aux(dsb, pos, 2, value); /* Back left */
} else if (channel == 1) { /* Right */
dsb->put_aux(dsb, pos, 1, value); /* Front right */
dsb->put_aux(dsb, pos, 3, value); /* Back right */
}
}
void mixieee32(float *src, float *dst, unsigned samples)
{
TRACE("%p - %p %d\n", src, dst, samples);

4
dlls/dsound/dsound_private.h
View File

@ -30,7 +30,7 @@
#include "wine/list.h"
#define DS_MAX_CHANNELS 2
#define DS_MAX_CHANNELS 4
extern int ds_hel_buflen DECLSPEC_HIDDEN;
extern int ds_snd_queue_max DECLSPEC_HIDDEN;
@ -179,6 +179,8 @@ struct IDirectSoundBufferImpl
float get_mono(const IDirectSoundBufferImpl *dsb, DWORD pos, DWORD channel) DECLSPEC_HIDDEN;
void put_mono2stereo(const IDirectSoundBufferImpl *dsb, DWORD pos, DWORD channel, float value) DECLSPEC_HIDDEN;
void put_mono2quad(const IDirectSoundBufferImpl *dsb, DWORD pos, DWORD channel, float value) DECLSPEC_HIDDEN;
void put_stereo2quad(const IDirectSoundBufferImpl *dsb, DWORD pos, DWORD channel, float value) DECLSPEC_HIDDEN;
HRESULT IDirectSoundBufferImpl_Create(
DirectSoundDevice *device,

11
dlls/dsound/mixer.c
View File

@ -151,13 +151,22 @@ void DSOUND_RecalcFormat(IDirectSoundBufferImpl *dsb)
else if (ichannels == 1)
{
dsb->mix_channels = 1;
dsb->put = put_mono2stereo;
if (ochannels == 2)
dsb->put = put_mono2stereo;
else if (ochannels == 4)
dsb->put = put_mono2quad;
}
else if (ochannels == 1)
{
dsb->mix_channels = 1;
dsb->get = get_mono;
}
else if (ichannels == 2 && ochannels == 4)
{
dsb->mix_channels = 2;
dsb->put = put_stereo2quad;
}
else
{
if (ichannels > 2)

7
dlls/dsound/primary.c
View File

@ -67,6 +67,9 @@ static DWORD speaker_config_to_channel_mask(DWORD speaker_config)
case DSSPEAKER_STEREO:
case DSSPEAKER_HEADPHONE:
return SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
case DSSPEAKER_QUAD:
return SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
}
WARN("unknown speaker_config %u\n", speaker_config);
@ -192,7 +195,9 @@ static DWORD DSOUND_FindSpeakerConfig(IMMDevice *mmdevice)
PropVariantClear(&pv);
IPropertyStore_Release(store);
if ((phys_speakers & KSAUDIO_SPEAKER_STEREO) == KSAUDIO_SPEAKER_STEREO)
if ((phys_speakers & KSAUDIO_SPEAKER_QUAD) == KSAUDIO_SPEAKER_QUAD)
return DSSPEAKER_QUAD;
else if ((phys_speakers & KSAUDIO_SPEAKER_STEREO) == KSAUDIO_SPEAKER_STEREO)
return DSSPEAKER_COMBINED(DSSPEAKER_STEREO, DSSPEAKER_GEOMETRY_WIDE);
else if ((phys_speakers & KSAUDIO_SPEAKER_MONO) == KSAUDIO_SPEAKER_MONO)
return DSSPEAKER_MONO;