[PATCH v4 1/1] mmdevapi: Round min_period_frames up in client_GetSharedModeEnginePeriod().

[Paul Gofman]

From: Paul Gofman

---
 dlls/mmdevapi/client.c       |  3 ++-
 dlls/mmdevapi/tests/render.c | 14 ++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/dlls/mmdevapi/client.c b/dlls/mmdevapi/client.c
index 39cbae27b34..15ae213a1dc 100644
--- a/dlls/mmdevapi/client.c
+++ b/dlls/mmdevapi/client.c
@@ -1064,7 +1064,8 @@ static HRESULT WINAPI client_GetSharedModeEnginePeriod(IAudioClient3 *iface,
         return hr;

*default_period_frames = def_period * format->nSamplesPerSec / (REFERENCE_TIME)10000000;
-    *min_period_frames     = min_period * format->nSamplesPerSec / (REFERENCE_TIME)10000000;
+    *min_period_frames     = (min_period * format->nSamplesPerSec + 10000000 - 1) / (REFERENCE_TIME)10000000;
+    *default_period_frames = max( *default_period_frames, *min_period_frames );
     *max_period_frames     = *default_period_frames;
     *unit_period_frames    = 1;

diff --git a/dlls/mmdevapi/tests/render.c b/dlls/mmdevapi/tests/render.c
index f9939fbcff6..9d9b5119afc 100644
--- a/dlls/mmdevapi/tests/render.c
+++ b/dlls/mmdevapi/tests/render.c
@@ -383,6 +383,20 @@ static void test_audioclient(void)
         hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER,
                 NULL, (void**)&ac);
         ok(hr == S_OK, "Activation failed with %08lx\n", hr);
+
+        hr = IAudioClient_QueryInterface(ac, &IID_IAudioClient3, (void**)&ac3);
+        ok(hr == S_OK, "Failed to query IAudioClient3 interface: %08lx\n", hr);
+
+        hr = IAudioClient3_InitializeSharedAudioStream(
+            ac3, AUDCLNT_SHAREMODE_SHARED, min_period, pwfx, NULL);
+        ok(hr == S_OK, "InitializeSharedAudioStream returns %08lx\n", hr);
+
+        IAudioClient3_Release(ac3);
+        IAudioClient_Release(ac);
+
+        hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER,
+                NULL, (void**)&ac);
+        ok(hr == S_OK, "Activation failed with %08lx\n", hr);
     }
     else
         win_skip("IAudioClient3 is not present\n");