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#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;
}
