MdeModulePkg: Update Brotli DecompressLib to the latest v1.0.6
https://bugzilla.tianocore.org/show_bug.cgi?id=1201 Update Brotli to the latest version 1.0.6 https://github.com/google/brotli Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
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@@ -11,8 +11,8 @@
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//#include <string.h> /* memcpy, memset */
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#include "../common/constants.h"
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#include "../common/types.h"
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#include "./port.h"
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#include "../common/platform.h"
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#include <brotli/types.h>
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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@@ -20,8 +20,9 @@ extern "C" {
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#define BROTLI_REVERSE_BITS_MAX 8
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#ifdef BROTLI_RBIT
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#define BROTLI_REVERSE_BITS_BASE (32 - BROTLI_REVERSE_BITS_MAX)
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#if defined(BROTLI_RBIT)
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#define BROTLI_REVERSE_BITS_BASE \
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((sizeof(brotli_reg_t) << 3) - BROTLI_REVERSE_BITS_MAX)
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#else
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#define BROTLI_REVERSE_BITS_BASE 0
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static uint8_t kReverseBits[1 << BROTLI_REVERSE_BITS_MAX] = {
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@@ -61,13 +62,13 @@ static uint8_t kReverseBits[1 << BROTLI_REVERSE_BITS_MAX] = {
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#endif /* BROTLI_RBIT */
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#define BROTLI_REVERSE_BITS_LOWEST \
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(1U << (BROTLI_REVERSE_BITS_MAX - 1 + BROTLI_REVERSE_BITS_BASE))
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((brotli_reg_t)1 << (BROTLI_REVERSE_BITS_MAX - 1 + BROTLI_REVERSE_BITS_BASE))
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/* Returns reverse(num >> BROTLI_REVERSE_BITS_BASE, BROTLI_REVERSE_BITS_MAX),
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where reverse(value, len) is the bit-wise reversal of the len least
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significant bits of value. */
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static BROTLI_INLINE uint32_t BrotliReverseBits(uint32_t num) {
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#ifdef BROTLI_RBIT
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static BROTLI_INLINE brotli_reg_t BrotliReverseBits(brotli_reg_t num) {
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#if defined(BROTLI_RBIT)
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return BROTLI_RBIT(num);
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#else
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return kReverseBits[num];
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@@ -85,9 +86,9 @@ static BROTLI_INLINE void ReplicateValue(HuffmanCode* table,
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} while (end > 0);
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}
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/* Returns the table width of the next 2nd level table. count is the histogram
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of bit lengths for the remaining symbols, len is the code length of the next
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processed symbol */
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/* Returns the table width of the next 2nd level table. |count| is the histogram
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of bit lengths for the remaining symbols, |len| is the code length of the
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next processed symbol. */
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static BROTLI_INLINE int NextTableBitSize(const uint16_t* const count,
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int len, int root_bits) {
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int left = 1 << (len - root_bits);
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@@ -103,12 +104,12 @@ static BROTLI_INLINE int NextTableBitSize(const uint16_t* const count,
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void BrotliBuildCodeLengthsHuffmanTable(HuffmanCode* table,
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const uint8_t* const code_lengths,
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uint16_t* count) {
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HuffmanCode code; /* current table entry */
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int symbol; /* symbol index in original or sorted table */
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uint32_t key; /* prefix code */
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uint32_t key_step; /* prefix code addend */
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int step; /* step size to replicate values in current table */
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int table_size; /* size of current table */
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HuffmanCode code; /* current table entry */
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int symbol; /* symbol index in original or sorted table */
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brotli_reg_t key; /* prefix code */
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brotli_reg_t key_step; /* prefix code addend */
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int step; /* step size to replicate values in current table */
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int table_size; /* size of current table */
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int sorted[BROTLI_CODE_LENGTH_CODES]; /* symbols sorted by code length */
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/* offsets in sorted table for each length */
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int offset[BROTLI_HUFFMAN_MAX_CODE_LENGTH_CODE_LENGTH + 1];
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@@ -117,7 +118,7 @@ void BrotliBuildCodeLengthsHuffmanTable(HuffmanCode* table,
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BROTLI_DCHECK(BROTLI_HUFFMAN_MAX_CODE_LENGTH_CODE_LENGTH <=
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BROTLI_REVERSE_BITS_MAX);
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/* generate offsets into sorted symbol table by code length */
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/* Generate offsets into sorted symbol table by code length. */
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symbol = -1;
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bits = 1;
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BROTLI_REPEAT(BROTLI_HUFFMAN_MAX_CODE_LENGTH_CODE_LENGTH, {
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@@ -128,7 +129,7 @@ void BrotliBuildCodeLengthsHuffmanTable(HuffmanCode* table,
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/* Symbols with code length 0 are placed after all other symbols. */
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offset[0] = BROTLI_CODE_LENGTH_CODES - 1;
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/* sort symbols by length, by symbol order within each length */
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/* Sort symbols by length, by symbol order within each length. */
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symbol = BROTLI_CODE_LENGTH_CODES;
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do {
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BROTLI_REPEAT(6, {
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@@ -143,13 +144,13 @@ void BrotliBuildCodeLengthsHuffmanTable(HuffmanCode* table,
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if (offset[0] == 0) {
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code.bits = 0;
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code.value = (uint16_t)sorted[0];
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for (key = 0; key < (uint32_t)table_size; ++key) {
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for (key = 0; key < (brotli_reg_t)table_size; ++key) {
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table[key] = code;
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}
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return;
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}
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/* fill in table */
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/* Fill in table. */
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key = 0;
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key_step = BROTLI_REVERSE_BITS_LOWEST;
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symbol = 0;
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@@ -175,10 +176,10 @@ uint32_t BrotliBuildHuffmanTable(HuffmanCode* root_table,
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HuffmanCode* table; /* next available space in table */
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int len; /* current code length */
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int symbol; /* symbol index in original or sorted table */
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uint32_t key; /* prefix code */
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uint32_t key_step; /* prefix code addend */
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uint32_t sub_key; /* 2nd level table prefix code */
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uint32_t sub_key_step; /* 2nd level table prefix code addend */
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brotli_reg_t key; /* prefix code */
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brotli_reg_t key_step; /* prefix code addend */
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brotli_reg_t sub_key; /* 2nd level table prefix code */
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brotli_reg_t sub_key_step; /* 2nd level table prefix code addend */
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int step; /* step size to replicate values in current table */
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int table_bits; /* key length of current table */
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int table_size; /* size of current table */
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@@ -199,9 +200,8 @@ uint32_t BrotliBuildHuffmanTable(HuffmanCode* root_table,
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table_size = 1 << table_bits;
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total_size = table_size;
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/* fill in root table */
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/* let's reduce the table size to a smaller size if possible, and */
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/* create the repetitions by memcpy if possible in the coming loop */
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/* Fill in the root table. Reduce the table size to if possible,
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and create the repetitions by memcpy. */
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if (table_bits > max_length) {
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table_bits = max_length;
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table_size = 1 << table_bits;
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@@ -223,15 +223,14 @@ uint32_t BrotliBuildHuffmanTable(HuffmanCode* root_table,
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key_step >>= 1;
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} while (++bits <= table_bits);
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/* if root_bits != table_bits we only created one fraction of the */
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/* table, and we need to replicate it now. */
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/* If root_bits != table_bits then replicate to fill the remaining slots. */
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while (total_size != table_size) {
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memcpy(&table[table_size], &table[0],
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(size_t)table_size * sizeof(table[0]));
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table_size <<= 1;
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}
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/* fill in 2nd level tables and add pointers to root table */
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/* Fill in 2nd level tables and add pointers to root table. */
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key_step = BROTLI_REVERSE_BITS_LOWEST >> (root_bits - 1);
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sub_key = (BROTLI_REVERSE_BITS_LOWEST << 1);
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sub_key_step = BROTLI_REVERSE_BITS_LOWEST;
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