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-rw-r--r--web/server/h2o/libh2o/deps/brotli/enc/block_splitter.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/deps/brotli/enc/block_splitter.h b/web/server/h2o/libh2o/deps/brotli/enc/block_splitter.h
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+/* Copyright 2013 Google Inc. All Rights Reserved.
+
+ Distributed under MIT license.
+ See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+*/
+
+// Block split point selection utilities.
+
+#ifndef BROTLI_ENC_BLOCK_SPLITTER_H_
+#define BROTLI_ENC_BLOCK_SPLITTER_H_
+
+#include <vector>
+
+#include "./command.h"
+#include "./metablock.h"
+#include "./types.h"
+
+namespace brotli {
+
+struct BlockSplitIterator {
+ explicit BlockSplitIterator(const BlockSplit& split)
+ : split_(split), idx_(0), type_(0), length_(0) {
+ if (!split.lengths.empty()) {
+ length_ = split.lengths[0];
+ }
+ }
+
+ void Next() {
+ if (length_ == 0) {
+ ++idx_;
+ type_ = split_.types[idx_];
+ length_ = split_.lengths[idx_];
+ }
+ --length_;
+ }
+
+ const BlockSplit& split_;
+ size_t idx_;
+ size_t type_;
+ size_t length_;
+};
+
+void CopyLiteralsToByteArray(const Command* cmds,
+ const size_t num_commands,
+ const uint8_t* data,
+ const size_t offset,
+ const size_t mask,
+ std::vector<uint8_t>* literals);
+
+void SplitBlock(const Command* cmds,
+ const size_t num_commands,
+ const uint8_t* data,
+ const size_t offset,
+ const size_t mask,
+ BlockSplit* literal_split,
+ BlockSplit* insert_and_copy_split,
+ BlockSplit* dist_split);
+
+} // namespace brotli
+
+#endif // BROTLI_ENC_BLOCK_SPLITTER_H_