private static unsafe void BrotliInitMemoryManager(
ref MemoryManager m, brotli_alloc_func alloc_func, brotli_free_func free_func,
void *opaque)
{
if (alloc_func == null)
{
m.alloc_func = DefaultAllocFunc;
m.free_func = DefaultFreeFunc;
m.opaque = null;
}
else
{
m.alloc_func = alloc_func;
m.free_func = free_func;
m.opaque = opaque;
}
}
private static unsafe void BrotliDecoderStateInitWithCustomAllocators(
ref BrotliDecoderState s, brotli_alloc_func alloc_func, brotli_free_func free_func,
void *opaque)
{
if (alloc_func == null)
{
s.alloc_func = DefaultAllocFunc;
s.free_func = DefaultFreeFunc;
s.memory_manager_opaque = null;
}
else
{
s.alloc_func = alloc_func;
s.free_func = free_func;
s.memory_manager_opaque = opaque;
}
fixed(BrotliBitReader *br = &s.br)
BrotliInitBitReader(br);
s.state = BrotliRunningState.BROTLI_STATE_UNINITED;
s.substate_metablock_header = BrotliRunningMetablockHeaderState.BROTLI_STATE_METABLOCK_HEADER_NONE;
s.substate_tree_group = BrotliRunningTreeGroupState.BROTLI_STATE_TREE_GROUP_NONE;
s.substate_context_map = BrotliRunningContextMapState.BROTLI_STATE_CONTEXT_MAP_NONE;
s.substate_uncompressed = BrotliRunningUncompressedState.BROTLI_STATE_UNCOMPRESSED_NONE;
s.substate_huffman = BrotliRunningHuffmanState.BROTLI_STATE_HUFFMAN_NONE;
s.substate_decode_uint8 = BrotliRunningDecodeUint8State.BROTLI_STATE_DECODE_UINT8_NONE;
s.substate_read_block_length = BrotliRunningReadBlockLengthState.BROTLI_STATE_READ_BLOCK_LENGTH_NONE;
s.buffer_length = 0;
s.loop_counter = 0;
s.pos = 0;
s.rb_roundtrips = 0;
s.partial_pos_out = 0;
s.block_type_trees = null;
s.block_len_trees = null;
s.ringbuffer = null;
s.ringbuffer_size = 0;
s.new_ringbuffer_size = 0;
s.ringbuffer_mask = 0;
s.context_map = null;
s.context_modes = null;
s.dist_context_map = null;
s.context_map_slice = null;
s.dist_context_map_slice = null;
s.sub_loop_counter = 0;
s.literal_hgroup.codes = null;
s.literal_hgroup.htrees = null;
s.insert_copy_hgroup.codes = null;
s.insert_copy_hgroup.htrees = null;
s.distance_hgroup.codes = null;
s.distance_hgroup.htrees = null;
s.custom_dict = null;
s.custom_dict_size = 0;
s.is_last_metablock = false;
s.should_wrap_ringbuffer = false;
s.window_bits = 0;
s.max_distance = 0;
fixed(int *rb = s.dist_rb)
{
rb[0] = 16;
rb[1] = 15;
rb[2] = 11;
rb[3] = 4;
}
s.dist_rb_idx = 0;
s.block_type_trees = null;
s.block_len_trees = null;
s.mtf_upper_bound = 63;
}