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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) 2008-2018 NVIDIA Corporation. All rights reserved.
#include "SnConvX.h"
#include "SnConvX_Align.h"
#include <assert.h>
using namespace physx;
void Sn::ConvX::alignTarget(int alignment)
{
const int outputSize = getCurrentOutputSize();
const PxU32 outPadding = getPadding(size_t(outputSize), PxU32(alignment));
if(outPadding)
{
assert(outPadding<CONVX_ZERO_BUFFER_SIZE);
output(mZeros, int(outPadding));
}
}
const char* Sn::ConvX::alignStream(const char* buffer, int alignment)
{
const PxU32 padding = getPadding(size_t(buffer), PxU32(alignment));
assert(!getPadding(size_t(buffer + padding), PxU32(alignment)));
const int outputSize = getCurrentOutputSize();
const PxU32 outPadding = getPadding(size_t(outputSize), PxU32(alignment));
if(outPadding==padding)
{
assert(outPadding<CONVX_ZERO_BUFFER_SIZE);
output(mZeros, int(outPadding));
}
else if(outPadding)
{
assert(outPadding<CONVX_ZERO_BUFFER_SIZE);
output(mZeros, int(outPadding));
}
return buffer + padding;
}
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