100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2025 NVIDIA Corporation. All rights reserved.
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#ifndef PX_PVD_INTERNAL_BYTE_STREAMS_H
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#define PX_PVD_INTERNAL_BYTE_STREAMS_H
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#include "PxPvdByteStreams.h"
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#include "PxPvdFoundation.h"
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namespace physx
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{
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namespace pvdsdk
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{
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struct MemPvdInputStream : public PvdInputStream
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{
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const uint8_t* mBegin;
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const uint8_t* mEnd;
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bool mGood;
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MemPvdInputStream(const uint8_t* beg = NULL, const uint8_t* end = NULL)
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{
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mBegin = beg;
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mEnd = end;
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mGood = true;
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}
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uint32_t size() const
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{
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return mGood ? static_cast<uint32_t>(mEnd - mBegin) : 0;
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}
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bool isGood() const
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{
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return mGood;
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}
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void setup(uint8_t* start, uint8_t* stop)
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{
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mBegin = start;
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mEnd = stop;
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}
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void nocopyRead(uint8_t*& buffer, uint32_t& len)
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{
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if(len == 0 || mGood == false)
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{
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len = 0;
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buffer = NULL;
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return;
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}
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uint32_t original = len;
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len = PxMin(len, size());
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if(mGood && len != original)
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mGood = false;
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buffer = const_cast<uint8_t*>(mBegin);
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mBegin += len;
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}
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virtual bool read(uint8_t* buffer, uint32_t& len)
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{
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if(len == 0)
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return true;
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uint32_t original = len;
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len = PxMin(len, size());
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physx::intrinsics::memCopy(buffer, mBegin, len);
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mBegin += len;
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if(len < original)
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physx::intrinsics::memZero(buffer + len, original - len);
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mGood = mGood && len == original;
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return mGood;
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}
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};
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}
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}
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#endif
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