wine-staging/patches/06-winepulse/0007-winepulse-Add-audiostreamvolume.patch

From 85e33b703dd8c082af2b4a008215adca70308fc5 Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Date: Sat, 8 Feb 2014 16:08:54 +0100
Subject: [PATCH 14/42] winepulse: Add audiostreamvolume

---
Pulse allows streams to set volume, but for various reasons it's
better off being disabled by default.

It can be enabled with HKCU\Software\Wine\Pulse\StreamVol=0x1
---
 dlls/winepulse.drv/mmdevdrv.c | 236 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 236 insertions(+)

diff --git a/dlls/winepulse.drv/mmdevdrv.c b/dlls/winepulse.drv/mmdevdrv.c
index 3ed2288..b7414c2 100644
--- a/dlls/winepulse.drv/mmdevdrv.c
+++ b/dlls/winepulse.drv/mmdevdrv.c
@@ -177,6 +177,11 @@ static inline ACImpl *impl_from_IAudioClock2(IAudioClock2 *iface)
     return CONTAINING_RECORD(iface, ACImpl, IAudioClock2_iface);
 }
 
+static inline ACImpl *impl_from_IAudioStreamVolume(IAudioStreamVolume *iface)
+{
+    return CONTAINING_RECORD(iface, ACImpl, IAudioStreamVolume_iface);
+}
+
 /* Following pulseaudio design here, mainloop has the lock taken whenever
  * it is handling something for pulse, and the lock is required whenever
  * doing any pa_* call that can affect the state in any way
@@ -444,6 +449,12 @@ static void pulse_op_cb(pa_stream *s, int success, void *user) {
     pthread_cond_signal(&pulse_cond);
 }
 
+static void pulse_ctx_op_cb(pa_context *c, int success, void *user) {
+    TRACE("Success: %i\n", success);
+    *(int*)user = success;
+    pthread_cond_signal(&pulse_cond);
+}
+
 static void pulse_attr_update(pa_stream *s, void *user) {
     const pa_buffer_attr *attr = pa_stream_get_buffer_attr(s);
     TRACE("New attributes or device moved:\n");
@@ -1461,6 +1472,8 @@ static HRESULT WINAPI AudioClient_GetService(IAudioClient *iface, REFIID riid,
         *ppv = &This->IAudioCaptureClient_iface;
     } else if (IsEqualIID(riid, &IID_IAudioClock)) {
         *ppv = &This->IAudioClock_iface;
+    } else if (IsEqualIID(riid, &IID_IAudioStreamVolume)) {
+        *ppv = &This->IAudioStreamVolume_iface;
     }
 
     if (*ppv) {
@@ -1922,6 +1935,229 @@ static const IAudioClock2Vtbl AudioClock2_Vtbl =
     AudioClock2_GetDevicePosition
 };
 
+static HRESULT WINAPI AudioStreamVolume_QueryInterface(
+        IAudioStreamVolume *iface, REFIID riid, void **ppv)
+{
+    TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
+
+    if (!ppv)
+        return E_POINTER;
+    *ppv = NULL;
+
+    if (IsEqualIID(riid, &IID_IUnknown) ||
+        IsEqualIID(riid, &IID_IAudioStreamVolume))
+        *ppv = iface;
+    if (*ppv) {
+        IUnknown_AddRef((IUnknown*)*ppv);
+        return S_OK;
+    }
+
+    WARN("Unknown interface %s\n", debugstr_guid(riid));
+    return E_NOINTERFACE;
+}
+
+static ULONG WINAPI AudioStreamVolume_AddRef(IAudioStreamVolume *iface)
+{
+    ACImpl *This = impl_from_IAudioStreamVolume(iface);
+    return IAudioClient_AddRef(&This->IAudioClient_iface);
+}
+
+static ULONG WINAPI AudioStreamVolume_Release(IAudioStreamVolume *iface)
+{
+    ACImpl *This = impl_from_IAudioStreamVolume(iface);
+    return IAudioClient_Release(&This->IAudioClient_iface);
+}
+
+static HRESULT WINAPI AudioStreamVolume_GetChannelCount(
+        IAudioStreamVolume *iface, UINT32 *out)
+{
+    ACImpl *This = impl_from_IAudioStreamVolume(iface);
+
+    TRACE("(%p)->(%p)\n", This, out);
+
+    if (!out)
+        return E_POINTER;
+
+    *out = This->ss.channels;
+
+    return S_OK;
+}
+
+struct pulse_info_cb_data {
+    UINT32 n;
+    float *levels;
+};
+
+static void pulse_sink_input_info_cb(pa_context *c, const pa_sink_input_info *info, int eol, void *data)
+{
+    struct pulse_info_cb_data *d = data;
+    int i;
+    if (eol)
+        return;
+    for (i = 0; i < d->n; ++i)
+        d->levels[i] = (float)info->volume.values[i] / (float)PA_VOLUME_NORM;
+    pthread_cond_signal(&pulse_cond);
+}
+
+static void pulse_source_info_cb(pa_context *c, const pa_source_info *info, int eol, void *data)
+{
+    struct pulse_info_cb_data *d = data;
+    int i;
+    if (eol)
+        return;
+    for (i = 0; i < d->n; ++i)
+        d->levels[i] = (float)info->volume.values[i] / (float)PA_VOLUME_NORM;
+    pthread_cond_signal(&pulse_cond);
+}
+
+static HRESULT WINAPI AudioStreamVolume_SetAllVolumes(
+        IAudioStreamVolume *iface, UINT32 count, const float *levels)
+{
+    ACImpl *This = impl_from_IAudioStreamVolume(iface);
+    pa_operation *o;
+    HRESULT hr;
+    int success = 0, i;
+    pa_cvolume cv;
+
+    TRACE("(%p)->(%d, %p)\n", This, count, levels);
+
+    if (!levels)
+        return E_POINTER;
+
+    if (count != This->ss.channels)
+        return E_INVALIDARG;
+
+    pthread_mutex_lock(&pulse_lock);
+    hr = pulse_stream_valid(This);
+    if (FAILED(hr))
+        goto out;
+
+    if (pulse_stream_volume) {
+        cv.channels = count;
+        for (i = 0; i < cv.channels; ++i)
+            cv.values[i] = levels[i] * (float)PA_VOLUME_NORM;
+        if (This->dataflow == eRender)
+            o = pa_context_set_sink_input_volume(pulse_ctx, pa_stream_get_index(This->stream), &cv, pulse_ctx_op_cb, &success);
+        else
+            o = pa_context_set_source_volume_by_index(pulse_ctx, pa_stream_get_device_index(This->stream), &cv, pulse_ctx_op_cb, &success);
+        if (o) {
+            while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
+                pthread_cond_wait(&pulse_cond, &pulse_lock);
+            pa_operation_unref(o);
+        }
+        if (!success)
+            hr = AUDCLNT_E_BUFFER_ERROR;
+    } else {
+        int i;
+        for (i = 0; i < count; ++i)
+            This->vol[i] = levels[i];
+    }
+
+out:
+    pthread_mutex_unlock(&pulse_lock);
+    return hr;
+}
+
+static HRESULT WINAPI AudioStreamVolume_GetAllVolumes(
+        IAudioStreamVolume *iface, UINT32 count, float *levels)
+{
+    ACImpl *This = impl_from_IAudioStreamVolume(iface);
+    pa_operation *o;
+    HRESULT hr;
+    struct pulse_info_cb_data info;
+
+    TRACE("(%p)->(%d, %p)\n", This, count, levels);
+
+    if (!levels)
+        return E_POINTER;
+
+    if (count != This->ss.channels)
+        return E_INVALIDARG;
+
+    pthread_mutex_lock(&pulse_lock);
+    hr = pulse_stream_valid(This);
+    if (FAILED(hr))
+        goto out;
+
+    if (pulse_stream_volume) {
+        info.n = count;
+        info.levels = levels;
+        if (This->dataflow == eRender)
+            o = pa_context_get_sink_input_info(pulse_ctx, pa_stream_get_index(This->stream), pulse_sink_input_info_cb, &info);
+        else
+            o = pa_context_get_source_info_by_index(pulse_ctx, pa_stream_get_device_index(This->stream), pulse_source_info_cb, &info);
+        if (o) {
+            while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
+                pthread_cond_wait(&pulse_cond, &pulse_lock);
+            pa_operation_unref(o);
+        } else
+            hr = AUDCLNT_E_BUFFER_ERROR;
+    } else {
+        int i;
+        for (i = 0; i < count; ++i)
+            levels[i] = This->vol[i];
+    }
+
+out:
+    pthread_mutex_unlock(&pulse_lock);
+    return hr;
+}
+
+static HRESULT WINAPI AudioStreamVolume_SetChannelVolume(
+        IAudioStreamVolume *iface, UINT32 index, float level)
+{
+    ACImpl *This = impl_from_IAudioStreamVolume(iface);
+    HRESULT hr;
+    float volumes[PA_CHANNELS_MAX];
+
+    TRACE("(%p)->(%d, %f)\n", This, index, level);
+
+    if (level < 0.f || level > 1.f)
+        return E_INVALIDARG;
+
+    if (index >= This->ss.channels)
+        return E_INVALIDARG;
+
+    hr = AudioStreamVolume_GetAllVolumes(iface, This->ss.channels, volumes);
+    volumes[index] = level;
+    if (SUCCEEDED(hr))
+        hr = AudioStreamVolume_SetAllVolumes(iface, This->ss.channels, volumes);
+    return hr;
+}
+
+static HRESULT WINAPI AudioStreamVolume_GetChannelVolume(
+        IAudioStreamVolume *iface, UINT32 index, float *level)
+{
+    ACImpl *This = impl_from_IAudioStreamVolume(iface);
+    float volumes[PA_CHANNELS_MAX];
+    HRESULT hr;
+
+    TRACE("(%p)->(%d, %p)\n", This, index, level);
+
+    if (!level)
+        return E_POINTER;
+
+    if (index >= This->ss.channels)
+        return E_INVALIDARG;
+
+    hr = AudioStreamVolume_GetAllVolumes(iface, This->ss.channels, volumes);
+    if (SUCCEEDED(hr))
+        *level = volumes[index];
+    return hr;
+}
+
+static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl =
+{
+    AudioStreamVolume_QueryInterface,
+    AudioStreamVolume_AddRef,
+    AudioStreamVolume_Release,
+    AudioStreamVolume_GetChannelCount,
+    AudioStreamVolume_SetChannelVolume,
+    AudioStreamVolume_GetChannelVolume,
+    AudioStreamVolume_SetAllVolumes,
+    AudioStreamVolume_GetAllVolumes
+};
+
 HRESULT WINAPI AUDDRV_GetAudioSessionManager(IMMDevice *device,
         IAudioSessionManager2 **out)
 {
-- 
1.8.5.2