1 files changed, 134 insertions, 0 deletions
diff --git a/src/VBox/Additions/3D/win/VBoxSVGA/winsys/vmw_screen.c b/src/VBox/Additions/3D/win/VBoxSVGA/winsys/vmw_screen.c
new file mode 100644
index 00000000..b96a37ce
--- /dev/null
+++ b/src/VBox/Additions/3D/win/VBoxSVGA/winsys/vmw_screen.c
@@ -0,0 +1,134 @@
+/*
+ * 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
+ */
+
+/**********************************************************
+ * Copyright 2009-2015 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#include "../wddm_screen.h"
+#include "vmw_fence.h"
+#include "vmw_context.h"
+#include "vmwgfx_drm.h"
+
+#include "util/os_file.h"
+#include "util/u_memory.h"
+#include "pipe/p_compiler.h"
+#include "util/u_hash_table.h"
+
+/* Called from vmw_drm_create_screen(), creates and initializes the
+ * vmw_winsys_screen structure, which is the main entity in this
+ * module.
+ * First, check whether a vmw_winsys_screen object already exists for
+ * this device, and in that case return that one, making sure that we
+ * have our own file descriptor open to DRM.
+ */
+
+struct vmw_winsys_screen_wddm *
+vmw_winsys_create_wddm(const WDDMGalliumDriverEnv *pEnv)
+{
+   struct vmw_winsys_screen_wddm *vws_wddm;
+   struct vmw_winsys_screen *vws;
+
+   if (   pEnv->pHWInfo == NULL
+       || pEnv->pHWInfo->u32HwType != VBOX_GA_HW_TYPE_VMSVGA)
+      return NULL;
+
+   vws_wddm = CALLOC_STRUCT(vmw_winsys_screen_wddm);
+   vws = &vws_wddm->base;
+   if (!vws)
+      goto out_no_vws;
+
+   vws_wddm->pEnv = pEnv;
+   vws_wddm->HwInfo = pEnv->pHWInfo->u.svga;
+
+   vws->device = 0; /* not used */
+   vws->open_count = 1;
+   vws->ioctl.drm_fd = -1; /* not used */
+   vws->force_coherent = FALSE;
+   if (!vmw_ioctl_init(vws))
+      goto out_no_ioctl;
+
+   vws->base.have_gb_dma = !vws->force_coherent;
+   vws->base.need_to_rebind_resources = FALSE;
+   vws->base.have_transfer_from_buffer_cmd = vws->base.have_vgpu10;
+   vws->base.have_constant_buffer_offset_cmd = FALSE;
+   vws->cache_maps = FALSE;
+   vws->fence_ops = vmw_fence_ops_create(vws);
+   if (!vws->fence_ops)
+      goto out_no_fence_ops;
+
+   if(!vmw_pools_init(vws))
+      goto out_no_pools;
+
+   if (!vmw_winsys_screen_init_svga(vws))
+      goto out_no_svga;
+
+   cnd_init(&vws->cs_cond);
+   mtx_init(&vws->cs_mutex, mtx_plain);
+
+   return vws_wddm;
+out_no_svga:
+   vmw_pools_cleanup(vws);
+out_no_pools:
+   vws->fence_ops->destroy(vws->fence_ops);
+out_no_fence_ops:
+   vmw_ioctl_cleanup(vws);
+out_no_ioctl:
+   FREE(vws);
+out_no_vws:
+   return NULL;
+}
+
+void
+vmw_winsys_destroy(struct vmw_winsys_screen *vws)
+{
+   if (--vws->open_count == 0) {
+      vmw_pools_cleanup(vws);
+      vws->fence_ops->destroy(vws->fence_ops);
+      vmw_ioctl_cleanup(vws);
+      mtx_destroy(&vws->cs_mutex);
+      cnd_destroy(&vws->cs_cond);
+      FREE(vws);
+   }
+}