public static void __hx_ctor_encode_metablock_BlockSplitter(global::encode.metablock.BlockSplitter __hx_this, int HistogramTypeInt, int alphabet_size, int min_block_size, double split_threshold, int num_symbols, global::encode.metablock.BlockSplit split, global::Array <object> histograms)
{
unchecked {
__hx_this.last_entropy_ = new global::Array <double>();
__hx_this.last_histogram_ix_ = new global::Array <int>();
__hx_this.HistogramTypeInt = HistogramTypeInt;
__hx_this.alphabet_size_ = alphabet_size;
__hx_this.min_block_size_ = min_block_size;
__hx_this.split_threshold_ = split_threshold;
__hx_this.num_blocks_ = 0;
__hx_this.split_ = split;
__hx_this.histograms_ = histograms;
__hx_this.target_block_size_ = min_block_size;
__hx_this.block_size_ = 0;
__hx_this.curr_histogram_ix_ = 0;
__hx_this.merge_last_count_ = 0;
int max_num_types = ((int)(global::System.Math.Min(((double)(((num_symbols / min_block_size) + 1))), ((double)((global::encode.metablock.BlockSplitter.kMaxBlockTypes + 1))))));
__hx_this.split_.lengths = new global::Array <int>();
__hx_this.split_.types = new global::Array <int>();
{
int _g1 = 0;
while ((_g1 < max_num_types))
{
++_g1;
__hx_this.histograms_.push(new global::encode.histogram.Histogram(((int)(HistogramTypeInt))));
}
}
__hx_this.last_histogram_ix_[1] = 0;
__hx_this.last_histogram_ix_[0] = 0;
}
}
public static void BuildMetaBlockGreedy(uint[] ringbuffer, int pos, int mask, global::Array <object> commands, int n_commands, global::encode.metablock.MetaBlockSplit mb)
{
unchecked {
int num_literals = 0;
{
int _g1 = 0;
while ((_g1 < n_commands))
{
num_literals += ((global::encode.command.Command)(commands[_g1++])).insert_len_;
}
}
global::encode.metablock.BlockSplitter lit_blocks = new global::encode.metablock.BlockSplitter(global::encode.Histogram_functions.HistogramLiteralInt, 256, 512, 400.0, num_literals, mb.literal_split, mb.literal_histograms);
global::encode.metablock.BlockSplitter cmd_blocks = new global::encode.metablock.BlockSplitter(global::encode.Histogram_functions.HistogramCommandInt, 704, 1024, 500.0, n_commands, mb.command_split, mb.command_histograms);
global::encode.metablock.BlockSplitter dist_blocks = new global::encode.metablock.BlockSplitter(global::encode.Histogram_functions.HistogramDistanceInt, 64, 512, 100.0, n_commands, mb.distance_split, mb.distance_histograms);
{
int _g11 = 0;
while ((_g11 < n_commands))
{
global::encode.command.Command cmd = ((global::encode.command.Command)(commands[_g11++]));
cmd_blocks.AddSymbol(((int)(cmd.cmd_prefix_[0])));
{
int _g3 = 0;
int _g2 = cmd.insert_len_;
while ((_g3 < _g2))
{
++_g3;
lit_blocks.AddSymbol(((int)(((uint)(((uint[])(ringbuffer))[(pos & mask)])))));
++pos;
}
}
pos += cmd.copy_len_;
if (((cmd.copy_len_ > 0) && ((bool)((cmd.cmd_prefix_[0] >= 128)))))
{
dist_blocks.AddSymbol(((int)(cmd.dist_prefix_[0])));
}
}
}
lit_blocks.FinishBlock(true);
cmd_blocks.FinishBlock(true);
dist_blocks.FinishBlock(true);
}
}
public static void BuildMetaBlockGreedyWithContexts(uint[] ringbuffer, int pos, int mask, uint prev_byte, uint prev_byte2, int literal_context_mode, int num_contexts, global::Array <int> static_context_map, global::Array <object> commands, int n_commands, global::encode.metablock.MetaBlockSplit mb)
{
unchecked {
int num_literals = 0;
{
int _g1 = 0;
while ((_g1 < n_commands))
{
num_literals += ((global::encode.command.Command)(commands[_g1++])).insert_len_;
}
}
global::encode.metablock.ContextBlockSplitter lit_blocks = new global::encode.metablock.ContextBlockSplitter(global::encode.Histogram_functions.HistogramLiteralInt, 256, num_contexts, 512, 400.0, num_literals, mb.literal_split, mb.literal_histograms);
global::encode.metablock.BlockSplitter cmd_blocks = new global::encode.metablock.BlockSplitter(global::encode.Histogram_functions.HistogramCommandInt, 704, 1024, 500.0, n_commands, mb.command_split, mb.command_histograms);
global::encode.metablock.BlockSplitter dist_blocks = new global::encode.metablock.BlockSplitter(global::encode.Histogram_functions.HistogramDistanceInt, 64, 512, 100.0, n_commands, mb.distance_split, mb.distance_histograms);
{
int _g11 = 0;
while ((_g11 < n_commands))
{
global::encode.command.Command cmd = ((global::encode.command.Command)(commands[_g11++]));
cmd_blocks.AddSymbol(((int)(cmd.cmd_prefix_[0])));
{
int _g3 = 0;
int _g2 = cmd.insert_len_;
while ((_g3 < _g2))
{
++_g3;
uint literal = ((uint)(((uint[])(ringbuffer))[(pos & mask)]));
lit_blocks.AddSymbol(((int)(literal)), static_context_map[((int)(global::encode.Context.ContextFunction(prev_byte, prev_byte2, literal_context_mode)))]);
prev_byte2 = prev_byte;
prev_byte = literal;
++pos;
}
}
pos += cmd.copy_len_;
if ((cmd.copy_len_ > 0))
{
prev_byte2 = ((uint)(((uint[])(ringbuffer))[((pos - 2) & mask)]));
prev_byte = ((uint)(((uint[])(ringbuffer))[((pos - 1) & mask)]));
if ((((int)(cmd.cmd_prefix_[0])) >= 128))
{
dist_blocks.AddSymbol(((int)(cmd.dist_prefix_[0])));
}
}
}
}
lit_blocks.FinishBlock(true);
cmd_blocks.FinishBlock(true);
dist_blocks.FinishBlock(true);
mb.literal_context_map = global::FunctionMalloc.mallocInt((mb.literal_split.num_types << 6));
{
int _g12 = 0;
int _g = mb.literal_split.num_types;
while ((_g12 < _g))
{
int i = _g12++;
{
int _g31 = 0;
while ((_g31 < 64))
{
int j = _g31++;
((int[])(mb.literal_context_map))[(((i << 6)) + j)] = ((i * num_contexts) + static_context_map[j]);
}
}
}
}
}
}
