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/* $Id: VBoxGaHwSVGA.h $ */
/** @file
* VirtualBox Windows Guest Mesa3D - Gallium driver interface.
*/
/*
* Copyright (C) 2016-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#ifndef GA_INCLUDED_3D_WIN_VBoxGaHwSVGA_h
#define GA_INCLUDED_3D_WIN_VBoxGaHwSVGA_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <iprt/types.h>
/*
* VBOXGAHWINFOSVGA contains information about the virtual hardware, which is neede dy the user mode
* Gallium driver. The driver can not query the info at the initialization time, therefore
* we send the complete info to the driver.
*
* Since both FIFO and SVGA_REG_ are expanded over time, we reserve some space.
* The Gallium user mode driver can figure out which part of au32Regs and au32Fifo
* is valid from the raw data.
*
* VBOXGAHWINFOSVGA struct goes both to 32 and 64 bit user mode binaries, take care of alignment.
*/
#pragma pack(1)
typedef struct VBOXGAHWINFOSVGA
{
uint32_t cbInfoSVGA;
/* Copy of SVGA_REG_*, up to 256, currently 58 are used. */
uint32_t au32Regs[256];
/* Copy of FIFO registers, up to 1024, currently 290 are used. */
uint32_t au32Fifo[1024];
/* Currently SVGA has 244 caps, 512 should be ok for near future.
* This is a copy of SVGA_REG_DEV_CAP enumeration.
* Only valid if SVGA_CAP_GBOBJECTS is set in SVGA_REG_CAPABILITIES.
*/
uint32_t au32Caps[512];
} VBOXGAHWINFOSVGA;
#pragma pack()
#endif /* !GA_INCLUDED_3D_WIN_VBoxGaHwSVGA_h */
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