[PATCH v2 1/1] mmdevapi: Implement SAC_IsAudioObjectFormatSupported().

[Paul Gofman]

From: Paul Gofman

---
 dlls/mmdevapi/spatialaudio.c       | 67 ++++++++++++++++++++----------
 dlls/mmdevapi/tests/spatialaudio.c | 21 ++++++++++
 2 files changed, 66 insertions(+), 22 deletions(-)

diff --git a/dlls/mmdevapi/spatialaudio.c b/dlls/mmdevapi/spatialaudio.c
index 23f3de31428..b721af6229b 100644
--- a/dlls/mmdevapi/spatialaudio.c
+++ b/dlls/mmdevapi/spatialaudio.c
@@ -49,6 +49,36 @@ static UINT32 AudioObjectType_to_index(AudioObjectType type)
     return o - 2;
 }

+static const char *debugstr_fmtex(const WAVEFORMATEX *fmt)
+{
+    static char buf[2048];
+
+    if (!fmt)
+    {
+        strcpy(buf, "(null)");
+    }
+    else if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
+    {
+        const WAVEFORMATEXTENSIBLE *fmtex = (const WAVEFORMATEXTENSIBLE *)fmt;
+        snprintf(buf, sizeof(buf), "tag: 0x%x (%s), ch: %u (mask: 0x%lx), rate: %lu, depth: %u",
+                fmt->wFormatTag, debugstr_guid(&fmtex->SubFormat),
+                fmt->nChannels, fmtex->dwChannelMask, fmt->nSamplesPerSec,
+                fmt->wBitsPerSample);
+    }
+    else
+    {
+        snprintf(buf, sizeof(buf), "tag: 0x%x, ch: %u, rate: %lu, depth: %u",
+                fmt->wFormatTag, fmt->nChannels, fmt->nSamplesPerSec,
+                fmt->wBitsPerSample);
+    }
+    return buf;
+}
+
+static BOOL formats_equal(const WAVEFORMATEX *fmt1, const WAVEFORMATEX *fmt2)
+{
+    return !memcmp(fmt1, fmt2, sizeof(*fmt1)) && !memcmp(fmt1 + 1, fmt2 + 1, fmt1->cbSize);
+}
+
 typedef struct SpatialAudioImpl SpatialAudioImpl;
 typedef struct SpatialAudioStreamImpl SpatialAudioStreamImpl;
 typedef struct SpatialAudioObjectImpl SpatialAudioObjectImpl;
@@ -610,9 +640,20 @@ static HRESULT WINAPI SAC_GetMaxFrameCount(ISpatialAudioClient *iface,
 static HRESULT WINAPI SAC_IsAudioObjectFormatSupported(ISpatialAudioClient *iface,
         const WAVEFORMATEX *format)
 {
-    SpatialAudioImpl *This = impl_from_ISpatialAudioClient(iface);
-    FIXME("(%p)->(%p)\n", This, format);
-    return E_NOTIMPL;
+    SpatialAudioImpl *sac = impl_from_ISpatialAudioClient(iface);
+
+    TRACE("sac %p, format %s.\n", sac, debugstr_fmtex(format));
+
+    if (!format)
+        return E_POINTER;
+
+    if (!formats_equal(&sac->object_fmtex.Format, format))
+    {
+        FIXME("Reporting format %s as unsupported.\n", debugstr_fmtex(format));
+        return E_INVALIDARG;
+    }
+
+    return S_OK;
 }

static HRESULT WINAPI SAC_IsSpatialAudioStreamAvailable(ISpatialAudioClient *iface,
@@ -630,23 +671,6 @@ static WAVEFORMATEX *clone_fmtex(const WAVEFORMATEX *src)
     return r;
 }

-static const char *debugstr_fmtex(const WAVEFORMATEX *fmt)
-{
-    static char buf[2048];
-    if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
-        const WAVEFORMATEXTENSIBLE *fmtex = (const WAVEFORMATEXTENSIBLE *)fmt;
-        snprintf(buf, sizeof(buf), "tag: 0x%x (%s), ch: %u (mask: 0x%lx), rate: %lu, depth: %u",
-                fmt->wFormatTag, debugstr_guid(&fmtex->SubFormat),
-                fmt->nChannels, fmtex->dwChannelMask, fmt->nSamplesPerSec,
-                fmt->wBitsPerSample);
-    }else{
-        snprintf(buf, sizeof(buf), "tag: 0x%x, ch: %u, rate: %lu, depth: %u",
-                fmt->wFormatTag, fmt->nChannels, fmt->nSamplesPerSec,
-                fmt->wBitsPerSample);
-    }
-    return buf;
-}
-
 static void static_mask_to_channels(AudioObjectType static_mask, WORD *count, DWORD *mask, UINT32 *map)
 {
     UINT32 out_chan = 0, map_idx = 0;
@@ -776,8 +800,7 @@ static HRESULT WINAPI SAC_ActivateSpatialAudioStream(ISpatialAudioClient *iface,
             return E_INVALIDARG;
         }

-        if(!params->ObjectFormat ||
-                memcmp(params->ObjectFormat, &This->object_fmtex.Format, sizeof(*params->ObjectFormat) + params->ObjectFormat->cbSize)){
+        if(!(params->ObjectFormat && formats_equal(params->ObjectFormat, &This->object_fmtex.Format))) {
             *stream = NULL;
             return AUDCLNT_E_UNSUPPORTED_FORMAT;
         }
diff --git a/dlls/mmdevapi/tests/spatialaudio.c b/dlls/mmdevapi/tests/spatialaudio.c
index a382b57e7a2..4d8073d49ce 100644
--- a/dlls/mmdevapi/tests/spatialaudio.c
+++ b/dlls/mmdevapi/tests/spatialaudio.c
@@ -64,6 +64,27 @@ static void test_formats(void)
     ok(fmt->nAvgBytesPerSec == 192000, "Wrong avg bytes per sec, expected 192000 got %lu\n", fmt->nAvgBytesPerSec);
     ok(fmt->cbSize == 0, "Wrong cbSize for simple format, expected 0, got %hu\n", fmt->cbSize);

+    hr = ISpatialAudioClient_IsAudioObjectFormatSupported(sac, NULL);
+    ok(hr == E_POINTER, "Got %#lx.\n", hr);
+
+    memcpy(&format, fmt, sizeof(format));
+    hr = ISpatialAudioClient_IsAudioObjectFormatSupported(sac, &format);
+    ok(hr == S_OK, "Got %#lx.\n", hr);
+
+    format.nBlockAlign *= 2;
+    hr = ISpatialAudioClient_IsAudioObjectFormatSupported(sac, &format);
+    todo_wine ok(hr == S_OK, "Got %#lx.\n", hr);
+
+    memcpy(&format, fmt, sizeof(format));
+    format.wBitsPerSample *= 2;
+    hr = ISpatialAudioClient_IsAudioObjectFormatSupported(sac, &format);
+    ok(hr == E_INVALIDARG, "Got %#lx.\n", hr);
+
+    memcpy(&format, fmt, sizeof(format));
+    format.nChannels = 2;
+    hr = ISpatialAudioClient_IsAudioObjectFormatSupported(sac, &format);
+    ok(hr == E_INVALIDARG, "Got %#lx.\n", hr);
+
     memcpy(&format, fmt, sizeof(format));

IAudioFormatEnumerator_Release(afe);