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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2018 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef NV_PHYS_XTO_DRV_H
#define NV_PHYS_XTO_DRV_H
// The puprose of this interface is to provide graphics drivers with information
// about PhysX state to draw PhysX visual indicator
// We share information between modules using a memory section object. PhysX creates
// such object, graphics drivers try to open it. The name of the object has
// fixed part (NvPhysXToDrv_SectionName) followed by the process id. This allows
// each process to have its own communication channel.
namespace physx
{
#define NvPhysXToDrv_SectionName "PH71828182845_"
// Vista apps cannot create stuff in Global\\ namespace when NOT elevated, so use local scope
#define NvPhysXToDrv_Build_SectionName(PID, buf) sprintf(buf, NvPhysXToDrv_SectionName "%x", PID)
#define NvPhysXToDrv_Build_SectionNameXP(PID, buf) sprintf(buf, "Global\\" NvPhysXToDrv_SectionName "%x", PID)
typedef struct NvPhysXToDrv_Header_
{
int signature; // header interface signature
int version; // version of the interface
int size; // size of the structure
int reserved; // reserved, must be zero
} NvPhysXToDrv_Header;
// this structure describes layout of data in the shared memory section
typedef struct NvPhysXToDrv_Data_V1_
{
NvPhysXToDrv_Header header; // keep this member first in all versions of the interface.
int bCpuPhysicsPresent; // nonzero if cpu physics is initialized
int bGpuPhysicsPresent; // nonzero if gpu physics is initialized
} NvPhysXToDrv_Data_V1;
// some random magic number as our interface signature
#define NvPhysXToDrv_Header_Signature 0xA7AB
// use the macro to setup the header to the latest version of the interface
// update the macro when a new verson of the interface is added
#define NvPhysXToDrv_Header_Init(header) \
{ \
header.signature = NvPhysXToDrv_Header_Signature; \
header.version = 1; \
header.size = sizeof(NvPhysXToDrv_Data_V1); \
header.reserved = 0; \
}
// validate the header against all known interface versions
// add validation checks when new interfaces are added
#define NvPhysXToDrv_Header_Validate(header, curVersion) \
( \
(header.signature == NvPhysXToDrv_Header_Signature) && \
(header.version == curVersion) && \
(curVersion == 1) && \
(header.size == sizeof(NvPhysXToDrv_Data_V1)) \
)
}
#endif // __NVPHYSXTODRV_H__
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