diff options
Diffstat (limited to 'src/VBox/Additions/3D/win/VBoxICD/VBoxICD.c')
| -rw-r--r-- | src/VBox/Additions/3D/win/VBoxICD/VBoxICD.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/VBox/Additions/3D/win/VBoxICD/VBoxICD.c b/src/VBox/Additions/3D/win/VBoxICD/VBoxICD.c new file mode 100644 index 00000000..cc5aa9ad --- /dev/null +++ b/src/VBox/Additions/3D/win/VBoxICD/VBoxICD.c @@ -0,0 +1,165 @@ +/* $Id: VBoxICD.c $ */ +/** @file + * VirtualBox Windows Guest Mesa3D - OpenGL driver loader. + */ + +/* + * Copyright (C) 2018-2023 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 <common/wddm/VBoxMPIf.h> + +static const char *g_pszGalliumDll = +#ifdef VBOX_WOW64 + "VBoxGL-x86.dll" +#else + "VBoxGL.dll" +#endif +; + +static const char *g_pszChromiumDll = +#ifdef VBOX_WOW64 + "VBoxOGL-x86.dll" +#else + "VBoxOGL.dll" +#endif +; + +extern struct VBOXWDDMDLLPROC aIcdProcs[]; + +HMODULE volatile g_hmodICD = NULL; + +static NTSTATUS +vboxDdiQueryAdapterInfo(D3DKMT_HANDLE hAdapter, + VBOXWDDM_QAI *pAdapterInfo, + uint32_t cbAdapterInfo) +{ + NTSTATUS Status; + D3DKMTFUNCTIONS const *d3dkmt = D3DKMTFunctions(); + + if (d3dkmt->pfnD3DKMTQueryAdapterInfo) + { + D3DKMT_QUERYADAPTERINFO QAI; + memset(&QAI, 0, sizeof(QAI)); + QAI.hAdapter = hAdapter; + QAI.Type = KMTQAITYPE_UMDRIVERPRIVATE; + QAI.pPrivateDriverData = pAdapterInfo; + QAI.PrivateDriverDataSize = cbAdapterInfo; + + Status = d3dkmt->pfnD3DKMTQueryAdapterInfo(&QAI); + } + else + { + Status = STATUS_NOT_SUPPORTED; + } + + return Status; +} + +void VBoxLoadICD(void) +{ + NTSTATUS Status; + D3DKMT_HANDLE hAdapter = 0; + + D3DKMTLoad(); + + Status = vboxDispKmtOpenAdapter(&hAdapter); + if (Status == STATUS_SUCCESS) + { + VBOXWDDM_QAI adapterInfo; + Status = vboxDdiQueryAdapterInfo(hAdapter, &adapterInfo, sizeof(adapterInfo)); + if (Status == STATUS_SUCCESS) + { + const char *pszDll = NULL; + switch (adapterInfo.enmHwType) + { + case VBOXVIDEO_HWTYPE_VBOX: pszDll = g_pszChromiumDll; break; + default: + case VBOXVIDEO_HWTYPE_VMSVGA: pszDll = g_pszGalliumDll; break; + } + + if (pszDll) + { + g_hmodICD = VBoxWddmLoadSystemDll(pszDll); + if (g_hmodICD) + { + VBoxWddmLoadAdresses(g_hmodICD, aIcdProcs); + } + } + } + + vboxDispKmtCloseAdapter(hAdapter); + } +} + +/* + * MSDN says: + * "You should never perform the following tasks from within DllMain: + * Call LoadLibrary or LoadLibraryEx (either directly or indirectly)." + * + * However it turned out that loading the real ICD from DLL_PROCESS_ATTACH works, + * and loading it in a lazy way fails for unknown reason on 64 bit Windows. + * + * So just call VBoxLoadICD from DLL_PROCESS_ATTACH. + */ +BOOL WINAPI DllMain(HINSTANCE hDLLInst, + DWORD fdwReason, + LPVOID lpvReserved) +{ + RT_NOREF(hDLLInst); + + switch (fdwReason) + { + case DLL_PROCESS_ATTACH: + VBoxLoadICD(); + break; + + case DLL_PROCESS_DETACH: + if (lpvReserved == NULL) + { + /* "The DLL is being unloaded because of a call to FreeLibrary." */ + if (g_hmodICD) + { + FreeLibrary(g_hmodICD); + g_hmodICD = NULL; + } + } + else + { + /* "The DLL is being unloaded due to process termination." */ + /* Do not bother. */ + } + break; + + case DLL_THREAD_ATTACH: + break; + + case DLL_THREAD_DETACH: + break; + + default: + break; + } + + return TRUE; +} |