#version 430 core
#extension GL_ARB_compute_shader :				enable
#extension GL_ARB_shader_storage_buffer_object:	enable

//this is the copy saved at above-level

layout( std430, binding=4) buffer bufferKey {
	uint KeyString[]; // array of structures
	//may need to change to uint for the atomics
};
layout( std430, binding=5) buffer bufferTXT {
	uint BufString[]; // array of structures
	//may need to change to uint for the atomics
};

layout (location=0) uniform uint keyByteLength;
layout (local_size_x = 1) in;

uint cryptoXORop(uint left_in, uint right_in){

	//atomicXOR(left_in, right_in);
	//return left_in;
	uint result = left_in ^ right_in;
	return result;

	//we can still do the null terminator check with some clever modulo
}


void main(void)
{

	uint gid = gl_GlobalInvocationID.x;
	uint lid = gl_LocalInvocationIndex;

	uint index = gid;
/*	
	uint result = cryptoXORop(BufString[index].x, KeyString[index%keyByteLength].x);
	
	BufString[index] = atomicAdd( BufString[index],result); //the usual for loop has been overtaken by the workgroup forking

	uint i = 0;

	*/
	for (uint i = 0; i < keyByteLength; i++)
		BufString[index+i] = 0;
	memoryBarrier();
}