1 files changed, 44 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jpegli/bitstream.h b/third_party/jpeg-xl/lib/jpegli/bitstream.h
new file mode 100644
index 0000000000..aa54c73d7e
--- /dev/null
+++ b/third_party/jpeg-xl/lib/jpegli/bitstream.h
@@ -0,0 +1,44 @@
+// Copyright (c) the JPEG XL Project Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#ifndef LIB_JPEGLI_BITSTREAM_H_
+#define LIB_JPEGLI_BITSTREAM_H_
+
+#include <initializer_list>
+#include <vector>
+
+#include "lib/jpegli/encode_internal.h"
+
+namespace jpegli {
+
+void WriteOutput(j_compress_ptr cinfo, const uint8_t* buf, size_t bufsize);
+void WriteOutput(j_compress_ptr cinfo, const std::vector<uint8_t>& bytes);
+void WriteOutput(j_compress_ptr cinfo, std::initializer_list<uint8_t> bytes);
+
+void EncodeAPP0(j_compress_ptr cinfo);
+void EncodeAPP14(j_compress_ptr cinfo);
+void WriteFileHeader(j_compress_ptr cinfo);
+
+// Returns true of only baseline 8-bit tables are used.
+bool EncodeDQT(j_compress_ptr cinfo, bool write_all_tables);
+void EncodeSOF(j_compress_ptr cinfo, bool is_baseline);
+void WriteFrameHeader(j_compress_ptr cinfo);
+
+void EncodeDRI(j_compress_ptr cinfo);
+void EncodeDHT(j_compress_ptr cinfo, size_t offset, size_t num);
+void EncodeSOS(j_compress_ptr cinfo, int scan_index);
+void WriteScanHeader(j_compress_ptr cinfo, int scan_index);
+
+void WriteBlock(const int32_t* JXL_RESTRICT symbols,
+                const int32_t* JXL_RESTRICT extra_bits, const int num_nonzeros,
+                const bool emit_eob,
+                const HuffmanCodeTable* JXL_RESTRICT dc_code,
+                const HuffmanCodeTable* JXL_RESTRICT ac_code,
+                JpegBitWriter* JXL_RESTRICT bw);
+void WriteScanData(j_compress_ptr cinfo, int scan_index);
+
+}  // namespace jpegli
+
+#endif  // LIB_JPEGLI_BITSTREAM_H_