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audio: implement wrapped IAudioClient3 (#511)

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## Link to GitHub Issue, if one exists
Fixes #509

## Description of change
Implement `WrappedIAudioClient3`.

For now, we have only seen SDVX use it (EG final) and only when the
shared mode patch is enabled. Exclusive still goes through version 1.
This means that for V3 we can forego implementing backend conversion
logic (for now).

Only significant addition is `InitializeSharedAudioStream` and this IS
called by SDVX when shared mode patch is enabled.

## Testing
Tested EG final, tested year 1 data, also IIDX shared/exclusive wasapi.
This commit is contained in:
bicarus
2026-01-10 17:41:10 -08:00
committed by GitHub
parent 9be618d791
commit a6f29d6a5a
3 changed files with 166 additions and 141 deletions
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src/spice2x/hooks/audio/backends/wasapi/audio_client.h
+45 -4
View File
@@ -16,9 +16,16 @@ static const GUID IID_WrappedIAudioClient = {
};
IAudioClient *wrap_audio_client(IAudioClient *client);
IAudioClient3 *wrap_audio_client3(IAudioClient3 *client);
struct WrappedIAudioClient : IAudioClient {
explicit WrappedIAudioClient(IAudioClient *orig, AudioBackend *backend) : pReal(orig), backend(backend) {
struct WrappedIAudioClient : IAudioClient3 {
explicit WrappedIAudioClient(IAudioClient3 *orig3, AudioBackend *backend) :
pReal(orig3), pReal3(orig3), backend(backend) {
}
explicit WrappedIAudioClient(IAudioClient *orig, AudioBackend *backend) :
pReal(orig), pReal3(nullptr), backend(backend) {
}
WrappedIAudioClient(const WrappedIAudioClient &) = delete;
@@ -47,9 +54,43 @@ struct WrappedIAudioClient : IAudioClient {
HRESULT STDMETHODCALLTYPE GetService(REFIID riid, void **ppv) override;
#pragma endregion
IAudioClient *const pReal;
AudioBackend *const backend;
#pragma region IAudioClient2
HRESULT STDMETHODCALLTYPE IsOffloadCapable(
AUDIO_STREAM_CATEGORY Category,
BOOL *pbOffloadCapable) override;
HRESULT STDMETHODCALLTYPE SetClientProperties(
const AudioClientProperties *pProperties) override;
HRESULT STDMETHODCALLTYPE GetBufferSizeLimits(
const WAVEFORMATEX *pFormat,
BOOL bEventDriven,
REFERENCE_TIME *phnsMinBufferDuration,
REFERENCE_TIME *phnsMaxBufferDuration) override;
#pragma endregion
#pragma region IAudioClient3
HRESULT STDMETHODCALLTYPE GetSharedModeEnginePeriod(
const WAVEFORMATEX *pFormat,
UINT32 *pDefaultPeriodInFrames,
UINT32 *pFundamentalPeriodInFrames,
UINT32 *pMinPeriodInFrames,
UINT32 *pMaxPeriodInFrames) override;
HRESULT STDMETHODCALLTYPE GetCurrentSharedModeEnginePeriod(
WAVEFORMATEX **ppFormat,
UINT32 *pCurrentPeriodInFrames) override;
HRESULT STDMETHODCALLTYPE InitializeSharedAudioStream(
DWORD StreamFlags,
UINT32 PeriodInFrames,
const WAVEFORMATEX *pFormat,
LPCGUID AudioSessionGuid) override;
#pragma endregion
IAudioClient *const pReal;
IAudioClient3 *const pReal3;
AudioBackend *const backend;
bool exclusive_mode = false;
int frame_size = 0;
};