[PATCH v4 2/3] mfmediaengine: Only accept engine formats which are render target compatible.

[Bernhard Kölbl]

From: Bernhard Kölbl

This behavior seems to match the Windows behavior the closest.
Additionally the docu mentions the output(engine) format being used as render target.
---
 dlls/mfmediaengine/main.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/dlls/mfmediaengine/main.c b/dlls/mfmediaengine/main.c
index b2ddc376db8..68696d328e9 100644
--- a/dlls/mfmediaengine/main.c
+++ b/dlls/mfmediaengine/main.c
@@ -1029,9 +1029,12 @@ static HRESULT media_engine_create_audio_renderer(struct media_engine *engine, I

static HRESULT media_engine_create_video_renderer(struct media_engine *engine, IMFTopologyNode **node)
 {
+    D3D11_TEXTURE2D_DESC texture_desc;
     DXGI_FORMAT output_format;
+    ID3D11Texture2D *texture;
     IMFMediaType *media_type;
     IMFActivate *activate;
+    ID3D11Device *device;
     GUID subtype;
     HRESULT hr;

@@ -1043,6 +1046,26 @@ static HRESULT media_engine_create_video_renderer(struct media_engine *engine, I
         return E_FAIL;
     }

+    if (FAILED(hr = media_engine_lock_d3d_device(engine, &device)))
+        return hr;
+
+    /* Check if supplied format is valid for render targets. */
+    memset(&texture_desc, 0, sizeof(D3D11_TEXTURE2D_DESC));
+    texture_desc.Width = 320;
+    texture_desc.Height = 240;
+    texture_desc.MipLevels = 1;
+    texture_desc.ArraySize = 1;
+    texture_desc.Format = output_format;
+    texture_desc.SampleDesc.Count = 1;
+    texture_desc.Usage = D3D11_USAGE_DEFAULT;
+    texture_desc.BindFlags = D3D11_BIND_RENDER_TARGET;
+
+    if (FAILED(ID3D11Device_CreateTexture2D(device, &texture_desc, NULL, &texture)))
+        return MF_E_INVALIDMEDIATYPE;
+
+    ID3D11Texture2D_Release(texture);
+    media_engine_unlock_d3d_device(engine, device);
+
     memcpy(&subtype, &MFVideoFormat_Base, sizeof(subtype));
     if (!(subtype.Data1 = MFMapDXGIFormatToDX9Format(output_format)))
     {