From ca3ba3f924fa81ad8cfabb44212296bb38b575a4 Mon Sep 17 00:00:00 2001
From: Silvio Vilerino <sivileri@microsoft.com>
Date: Wed, 22 Oct 2025 14:23:48 -0400
Subject: [PATCH] mediafoundation: Remove unused
 AllocatePipeResourceFromAllocator

Reviewed-by: Pohsiang (John) Hsu <pohhsu@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38057>
---
 .../mediafoundation/mfbufferhelp.cpp          | 55 -------------------
 .../frontends/mediafoundation/mfbufferhelp.h  |  5 --
 2 files changed, 60 deletions(-)

diff --git a/src/gallium/frontends/mediafoundation/mfbufferhelp.cpp b/src/gallium/frontends/mediafoundation/mfbufferhelp.cpp
index 234c107e5bd..d2cf256322f 100644
--- a/src/gallium/frontends/mediafoundation/mfbufferhelp.cpp
+++ b/src/gallium/frontends/mediafoundation/mfbufferhelp.cpp
@@ -343,58 +343,3 @@ MFAttachPipeResourceAsSampleExtension( struct pipe_context *pPipeContext,
 
    return pSample->SetUnknown( guidExtension, spMediaBuffer.Get() );
 }
-
-// Helper to convert the allocated IMFSample to pipe_resource*
-// Returns NULL on failure.
-struct pipe_resource *
-AllocatePipeResourceFromAllocator( IMFVideoSampleAllocatorEx *pAllocator,
-                                   struct pipe_screen *pScreen,
-                                   const struct pipe_resource *templ )
-{
-   if( !pAllocator || !pScreen || !templ )
-      return nullptr;
-
-   // Allocate or get a sample from the pool.
-   ComPtr<IMFSample> spSample;
-   HRESULT hr = pAllocator->AllocateSample( &spSample );
-   if( FAILED( hr ) || !spSample )
-      return nullptr;
-
-   // Get the underlying D3D12 resource from the sample
-   ComPtr<IMFMediaBuffer> spBuffer;
-   hr = spSample->GetBufferByIndex( 0, &spBuffer );
-   if( FAILED( hr ) || !spBuffer )
-      return nullptr;
-
-   ComPtr<IMFDXGIBuffer> spDXGIBuffer;
-   hr = spBuffer.As( &spDXGIBuffer );
-   if( FAILED( hr ) || !spDXGIBuffer )
-      return nullptr;
-
-   ComPtr<ID3D12Resource> spResource;
-   hr = spDXGIBuffer->GetResource( IID_PPV_ARGS( &spResource ) );
-   if( FAILED( hr ) || !spResource )
-      return nullptr;
-
-   // Build winsys_handle
-   struct winsys_handle whandle = {};
-   whandle.type = WINSYS_HANDLE_TYPE_D3D12_RES;
-   whandle.com_obj = spResource.Detach();
-   // templ->format contains the desired pipe_format
-   whandle.format = templ->format;
-
-   // Call resource_from_handle with the same templ for resource_create.
-   struct pipe_resource *pres = pScreen->resource_from_handle( pScreen, templ, &whandle, PIPE_USAGE_DEFAULT );
-
-   if( !pres )
-   {
-      // Release the detached COM object if resource_from_handle fails
-      if( whandle.com_obj )
-      {
-         static_cast<ID3D12Resource *>( whandle.com_obj )->Release();
-      }
-      return nullptr;
-   }
-
-   return pres;
-}
diff --git a/src/gallium/frontends/mediafoundation/mfbufferhelp.h b/src/gallium/frontends/mediafoundation/mfbufferhelp.h
index e49240e44fe..71a365be949 100644
--- a/src/gallium/frontends/mediafoundation/mfbufferhelp.h
+++ b/src/gallium/frontends/mediafoundation/mfbufferhelp.h
@@ -54,8 +54,3 @@ MFAttachPipeResourceAsSampleExtension( struct pipe_context *pPipeContext,
                                        ID3D12CommandQueue *pSyncObjectQueue,
                                        REFGUID guidExtension,
                                        IMFSample *pSample );
-
-struct pipe_resource *
-AllocatePipeResourceFromAllocator( IMFVideoSampleAllocatorEx *pAllocator,
-                                   struct pipe_screen *pScreen,
-                                   const struct pipe_resource *templ );