private static Tuple <int, MemoryStream> RLEEncodeAddRun(int runLen, uint runId)
{
var output = new MemoryStream();
using (var writer = new BinaryWriter7(output)) {
writer.Write7BitEncodedInt(RUN_LENGTH_SHIFT + runLen);
writer.Write(runId);
}
return(new Tuple <int, MemoryStream>(runLen, output));
}
private static Tuple <int, MemoryStream> RLEEncodeAddRun(int runLen, uint[] runIds)
{
var output = new MemoryStream();
using (var writer = new BinaryWriter7(output)) {
writer.Write7BitEncodedInt(RUN_LENGTH_SHIFT + (runLen == -1 ? 1 : runLen));
for (var i = -1; i >= runLen; i--)
{
writer.Write(runIds[-i]);
}
}
return(new Tuple <int, MemoryStream>(Math.Abs(runLen), output));
}
public override void setBlock(int x, int y, int z, uint block) {
var ind = index(x, y, z);
var node = tree.FindGreatestNotGreater(ind);
var offset = node.key;
var runLen = 0;
var runLenWrited = false;
MemoryStream output = null;
using (var reader = new BinaryReader7(new MemoryStream(node.data, 0, node.data.Length))) {
using(var writer = new BinaryWriter7(output = new MemoryStream())) {
while (reader.BaseStream.Position != reader.BaseStream.Length) {
if (runLen == 0) {
runLen = reader.Read7BitEncodedInt() - RUN_LENGTH_SHIFT;
runLenWrited = false;
} else if (runLen > 0) {
var runId = reader.ReadUInt32();
// blocks in range [offset...offset+runLen) is runId
offset = offset + runLen;
if (ind < offset) {
writer.Write7BitEncodedInt(ind - (offset - runLen) + RUN_LENGTH_SHIFT);
writer.Write(runId);
writer.Write7BitEncodedInt(1 + RUN_LENGTH_SHIFT);
writer.Write(block);
if (offset - ind -1 > 0) {
writer.Write7BitEncodedInt(offset - ind -1 + RUN_LENGTH_SHIFT);
writer.Write(runId);
}
} else {
writer.Write7BitEncodedInt(runLen + RUN_LENGTH_SHIFT);
writer.Write(runId);
}
runLen = 0;
} else if (runLen < 0) {
var blockId = reader.ReadUInt32();
if(!runLenWrited) {
writer.Write7BitEncodedInt(runLen + RUN_LENGTH_SHIFT);
runLenWrited = true;
}
if (offset == ind) {
writer.Write(block);
} else {
writer.Write(blockId);
}
runLen++;
offset++;
}
}
}
}
var newdata = output.ToArray();
node.data = output.ToArray();
}
private static Tuple<int, MemoryStream> RLEEncodeAddRun(int runLen, uint[] runIds) {
var output = new MemoryStream();
using (var writer = new BinaryWriter7(output)) {
writer.Write7BitEncodedInt(RUN_LENGTH_SHIFT + (runLen == -1 ? 1 : runLen));
for (var i = -1; i >= runLen; i--) {
writer.Write(runIds[-i]);
}
}
return new Tuple<int, MemoryStream>(Math.Abs(runLen), output);
}
private static Tuple<int, MemoryStream> RLEEncodeAddRun(int runLen, uint runId) {
var output = new MemoryStream();
using (var writer = new BinaryWriter7(output)) {
writer.Write7BitEncodedInt(RUN_LENGTH_SHIFT + runLen);
writer.Write(runId);
}
return new Tuple<int, MemoryStream>(runLen, output);
}
public override void setBlock(int x, int y, int z, uint block)
{
var ind = index(x, y, z);
var node = tree.FindGreatestNotGreater(ind);
var offset = node.key;
var runLen = 0;
var runLenWrited = false;
MemoryStream output = null;
using (var reader = new BinaryReader7(new MemoryStream(node.data, 0, node.data.Length))) {
using (var writer = new BinaryWriter7(output = new MemoryStream())) {
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
if (runLen == 0)
{
runLen = reader.Read7BitEncodedInt() - RUN_LENGTH_SHIFT;
runLenWrited = false;
}
else if (runLen > 0)
{
var runId = reader.ReadUInt32();
// blocks in range [offset...offset+runLen) is runId
offset = offset + runLen;
if (ind < offset)
{
writer.Write7BitEncodedInt(ind - (offset - runLen) + RUN_LENGTH_SHIFT);
writer.Write(runId);
writer.Write7BitEncodedInt(1 + RUN_LENGTH_SHIFT);
writer.Write(block);
if (offset - ind - 1 > 0)
{
writer.Write7BitEncodedInt(offset - ind - 1 + RUN_LENGTH_SHIFT);
writer.Write(runId);
}
}
else
{
writer.Write7BitEncodedInt(runLen + RUN_LENGTH_SHIFT);
writer.Write(runId);
}
runLen = 0;
}
else if (runLen < 0)
{
var blockId = reader.ReadUInt32();
if (!runLenWrited)
{
writer.Write7BitEncodedInt(runLen + RUN_LENGTH_SHIFT);
runLenWrited = true;
}
if (offset == ind)
{
writer.Write(block);
}
else
{
writer.Write(blockId);
}
runLen++;
offset++;
}
}
}
}
var newdata = output.ToArray();
node.data = output.ToArray();
}