1 files changed, 146 insertions, 0 deletions
diff --git a/src/VBox/Additions/3D/win/VBoxSVGA/VBoxSVGA.c b/src/VBox/Additions/3D/win/VBoxSVGA/VBoxSVGA.c
new file mode 100644
index 00000000..f140d7bb
--- /dev/null
+++ b/src/VBox/Additions/3D/win/VBoxSVGA/VBoxSVGA.c
@@ -0,0 +1,146 @@
+/* $Id: VBoxSVGA.c $ */
+/** @file
+ * VirtualBox Windows Guest Mesa3D - VMSVGA hardware driver.
+ */
+
+/*
+ * Copyright (C) 2016-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include <VBoxWddmUmHlp.h>
+
+#include "svga_public.h"
+#include "svga_screen.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "frontend/drm_driver.h"
+
+#include "wddm_screen.h"
+
+struct svga_winsys_screen *
+svga_wddm_winsys_screen_create(const WDDMGalliumDriverEnv *pEnv);
+
+struct pipe_screen * WINAPI
+GaDrvScreenCreate(const WDDMGalliumDriverEnv *pEnv)
+{
+    struct svga_winsys_screen *sws = svga_wddm_winsys_screen_create(pEnv);
+    if (sws)
+        return svga_screen_create(sws);
+    return NULL;
+}
+
+void WINAPI
+GaDrvScreenDestroy(struct pipe_screen *s)
+{
+    if (s)
+        s->destroy(s);
+}
+
+uint32_t WINAPI
+GaDrvGetSurfaceId(struct pipe_screen *pScreen, struct pipe_resource *pResource)
+{
+    uint32_t u32Sid = 0;
+
+    if (   pScreen
+        && pResource)
+    {
+        /* Get the sid (surface id). */
+        struct winsys_handle whandle;
+        memset(&whandle, 0, sizeof(whandle));
+        whandle.type = WINSYS_HANDLE_TYPE_SHARED;
+
+        if (pScreen->resource_get_handle(pScreen, NULL, pResource, &whandle, 0))
+        {
+            u32Sid = (uint32_t)whandle.handle;
+        }
+    }
+
+    return u32Sid;
+}
+
+const WDDMGalliumDriverEnv *WINAPI
+GaDrvGetWDDMEnv(struct pipe_screen *pScreen)
+{
+    HANDLE hAdapter = NULL;
+
+    if (pScreen)
+    {
+        struct svga_screen *pSvgaScreen = svga_screen(pScreen);
+        struct vmw_winsys_screen_wddm *vws_wddm = (struct vmw_winsys_screen_wddm *)pSvgaScreen->sws;
+
+        return vws_wddm->pEnv;
+    }
+
+    return hAdapter;
+}
+
+uint32_t WINAPI
+GaDrvGetContextId(struct pipe_context *pPipeContext)
+{
+    uint32 u32Cid = ~0;
+
+    if (pPipeContext)
+    {
+        struct svga_winsys_context *pSWC = svga_winsys_context(pPipeContext);
+        u32Cid = pSWC->cid;
+    }
+
+    return u32Cid;
+}
+
+void WINAPI
+GaDrvContextFlush(struct pipe_context *pPipeContext)
+{
+    if (pPipeContext)
+        pPipeContext->flush(pPipeContext, NULL, PIPE_FLUSH_END_OF_FRAME);
+}
+
+BOOL WINAPI DllMain(HINSTANCE hDLLInst,
+                    DWORD fdwReason,
+                    LPVOID lpvReserved)
+{
+    BOOL fReturn = TRUE;
+
+    RT_NOREF2(hDLLInst, lpvReserved);
+
+    switch (fdwReason)
+    {
+        case DLL_PROCESS_ATTACH:
+            //RTR3InitDll(RTR3INIT_FLAGS_UNOBTRUSIVE);
+            D3DKMTLoad();
+            break;
+
+        case DLL_PROCESS_DETACH:
+            /// @todo RTR3Term();
+            break;
+
+        case DLL_THREAD_ATTACH:
+            break;
+
+        case DLL_THREAD_DETACH:
+            break;
+
+        default:
+            break;
+    }
+
+    return fReturn;
+}