MdeModulePkg: Update Brotli DecompressLib to the latest v1.0.6

[mirror_edk2.git] / MdeModulePkg / Library / BrotliCustomDecompressLib / common / dictionary.h

diff --git a/MdeModulePkg/Library/BrotliCustomDecompressLib/common/dictionary.h b/MdeModulePkg/Library/BrotliCustomDecompressLib/common/dictionary.h
index d8cfe1c349091bdac2c025e8daad160fe2d6a630..a68a1c54493ec34c2f2cf97c89cf3bdcd357e7dd 100644 (file)
--- a/MdeModulePkg/Library/BrotliCustomDecompressLib/common/dictionary.h
+++ b/MdeModulePkg/Library/BrotliCustomDecompressLib/common/dictionary.h
@@ -9,18 +9,53 @@
 #ifndef BROTLI_COMMON_DICTIONARY_H_\r
 #define BROTLI_COMMON_DICTIONARY_H_\r
 \r
-#include "./types.h"\r
+#include <brotli/port.h>\r
+#include <brotli/types.h>\r
 \r
 #if defined(__cplusplus) || defined(c_plusplus)\r
 extern "C" {\r
 #endif\r
 \r
-extern const uint8_t kBrotliDictionary[122784];\r
-extern const uint32_t kBrotliDictionaryOffsetsByLength[25];\r
-extern const uint8_t kBrotliDictionarySizeBitsByLength[25];\r
+typedef struct BrotliDictionary {\r
+  /**\r
+   * Number of bits to encode index of dictionary word in a bucket.\r
+   *\r
+   * Specification: Appendix A. Static Dictionary Data\r
+   *\r
+   * Words in a dictionary are bucketed by length.\r
+   * @c 0 means that there are no words of a given length.\r
+   * Dictionary consists of words with length of [4..24] bytes.\r
+   * Values at [0..3] and [25..31] indices should not be addressed.\r
+   */\r
+  uint8_t size_bits_by_length[32];\r
 \r
-#define kBrotliMinDictionaryWordLength 4\r
-#define kBrotliMaxDictionaryWordLength 24\r
+  /* assert(offset[i + 1] == offset[i] + (bits[i] ? (i << bits[i]) : 0)) */\r
+  uint32_t offsets_by_length[32];\r
+\r
+  /* assert(data_size == offsets_by_length[31]) */\r
+  size_t data_size;\r
+\r
+  /* Data array is not bound, and should obey to size_bits_by_length values.\r
+     Specified size matches default (RFC 7932) dictionary. Its size is\r
+     defined by data_size */\r
+  const uint8_t* data;\r
+} BrotliDictionary;\r
+\r
+BROTLI_COMMON_API const BrotliDictionary* BrotliGetDictionary(void);\r
+\r
+/**\r
+ * Sets dictionary data.\r
+ *\r
+ * When dictionary data is already set / present, this method is no-op.\r
+ *\r
+ * Dictionary data MUST be provided before BrotliGetDictionary is invoked.\r
+ * This method is used ONLY in multi-client environment (e.g. C + Java),\r
+ * to reduce storage by sharing single dictionary between implementations.\r
+ */\r
+BROTLI_COMMON_API void BrotliSetDictionaryData(const uint8_t* data);\r
+\r
+#define BROTLI_MIN_DICTIONARY_WORD_LENGTH 4\r
+#define BROTLI_MAX_DICTIONARY_WORD_LENGTH 24\r
 \r
 #if defined(__cplusplus) || defined(c_plusplus)\r
 }  /* extern "C" */\r