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-rw-r--r--BaseTools/Source/C/BrotliCompress/enc/quality.h130
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diff --git a/BaseTools/Source/C/BrotliCompress/enc/quality.h b/BaseTools/Source/C/BrotliCompress/enc/quality.h
deleted file mode 100644
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--- a/BaseTools/Source/C/BrotliCompress/enc/quality.h
+++ /dev/null
@@ -1,130 +0,0 @@
-/* Copyright 2016 Google Inc. All Rights Reserved.
-
- Distributed under MIT license.
- See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
-*/
-
-/* Constants and formulas that affect speed-ratio trade-offs and thus define
- quality levels. */
-
-#ifndef BROTLI_ENC_QUALITY_H_
-#define BROTLI_ENC_QUALITY_H_
-
-#include "./encode.h"
-
-#define FAST_ONE_PASS_COMPRESSION_QUALITY 0
-#define FAST_TWO_PASS_COMPRESSION_QUALITY 1
-#define ZOPFLIFICATION_QUALITY 10
-#define HQ_ZOPFLIFICATION_QUALITY 11
-
-#define MAX_QUALITY_FOR_STATIC_ENRTOPY_CODES 2
-#define MIN_QUALITY_FOR_BLOCK_SPLIT 4
-#define MIN_QUALITY_FOR_OPTIMIZE_HISTOGRAMS 4
-#define MIN_QUALITY_FOR_EXTENSIVE_REFERENCE_SEARCH 5
-#define MIN_QUALITY_FOR_CONTEXT_MODELING 5
-#define MIN_QUALITY_FOR_HQ_CONTEXT_MODELING 7
-#define MIN_QUALITY_FOR_HQ_BLOCK_SPLITTING 10
-/* Only for "font" mode. */
-#define MIN_QUALITY_FOR_RECOMPUTE_DISTANCE_PREFIXES 10
-
-/* For quality below MIN_QUALITY_FOR_BLOCK_SPLIT there is no block splitting,
- so we buffer at most this much literals and commands. */
-#define MAX_NUM_DELAYED_SYMBOLS 0x2fff
-
-/* Encoding parameters */
-typedef struct BrotliEncoderParams {
- BrotliEncoderMode mode;
- int quality;
- int lgwin;
- int lgblock;
-} BrotliEncoderParams;
-
-/* Returns hashtable size for quality levels 0 and 1. */
-static BROTLI_INLINE size_t MaxHashTableSize(int quality) {
- return quality == FAST_ONE_PASS_COMPRESSION_QUALITY ? 1 << 15 : 1 << 17;
-}
-
-/* The maximum length for which the zopflification uses distinct distances. */
-#define MAX_ZOPFLI_LEN_QUALITY_10 150
-#define MAX_ZOPFLI_LEN_QUALITY_11 325
-
-static BROTLI_INLINE size_t MaxZopfliLen(const BrotliEncoderParams* params) {
- return params->quality <= 10 ?
- MAX_ZOPFLI_LEN_QUALITY_10 :
- MAX_ZOPFLI_LEN_QUALITY_11;
-}
-
-/* Number of best candidates to evaluate to expand zopfli chain. */
-static BROTLI_INLINE size_t MaxZopfliCandidates(
- const BrotliEncoderParams* params) {
- return params->quality <= 10 ? 1 : 5;
-}
-
-static BROTLI_INLINE void SanitizeParams(BrotliEncoderParams* params) {
- params->quality = BROTLI_MIN(int, BROTLI_MAX_QUALITY,
- BROTLI_MAX(int, BROTLI_MIN_QUALITY, params->quality));
- if (params->lgwin < kBrotliMinWindowBits) {
- params->lgwin = kBrotliMinWindowBits;
- } else if (params->lgwin > kBrotliMaxWindowBits) {
- params->lgwin = kBrotliMaxWindowBits;
- }
-}
-
-/* Returns optimized lg_block value. */
-static BROTLI_INLINE int ComputeLgBlock(const BrotliEncoderParams* params) {
- int lgblock = params->lgblock;
- if (params->quality == FAST_ONE_PASS_COMPRESSION_QUALITY ||
- params->quality == FAST_TWO_PASS_COMPRESSION_QUALITY) {
- lgblock = params->lgwin;
- } else if (params->quality < MIN_QUALITY_FOR_BLOCK_SPLIT) {
- lgblock = 14;
- } else if (lgblock == 0) {
- lgblock = 16;
- if (params->quality >= 9 && params->lgwin > lgblock) {
- lgblock = BROTLI_MIN(int, 18, params->lgwin);
- }
- } else {
- lgblock = BROTLI_MIN(int, kBrotliMaxInputBlockBits,
- BROTLI_MAX(int, kBrotliMinInputBlockBits, lgblock));
- }
- return lgblock;
-}
-
-/* Returns log2 of the size of main ring buffer area.
- Allocate at least lgwin + 1 bits for the ring buffer so that the newly
- added block fits there completely and we still get lgwin bits and at least
- read_block_size_bits + 1 bits because the copy tail length needs to be
- smaller than ringbuffer size. */
-static BROTLI_INLINE int ComputeRbBits(const BrotliEncoderParams* params) {
- return 1 + BROTLI_MAX(int, params->lgwin, params->lgblock);
-}
-
-static BROTLI_INLINE size_t MaxMetablockSize(
- const BrotliEncoderParams* params) {
- int bits = BROTLI_MIN(int, ComputeRbBits(params), kBrotliMaxInputBlockBits);
- return (size_t)1 << bits;
-}
-
-/* When searching for backward references and have not seen matches for a long
- time, we can skip some match lookups. Unsuccessful match lookups are very
- expensive and this kind of a heuristic speeds up compression quite a lot.
- At first 8 byte strides are taken and every second byte is put to hasher.
- After 4x more literals stride by 16 bytes, every put 4-th byte to hasher.
- Applied only to qualities 2 to 9. */
-static BROTLI_INLINE size_t LiteralSpreeLengthForSparseSearch(
- const BrotliEncoderParams* params) {
- return params->quality < 9 ? 64 : 512;
-}
-
-static BROTLI_INLINE int ChooseHasher(const BrotliEncoderParams* params) {
- if (params->quality > 9) {
- return 10;
- } else if (params->quality < 5) {
- return params->quality;
- } else if (params->lgwin <= 16) {
- return params->quality < 7 ? 40 : params->quality < 9 ? 41 : 42;
- }
- return params->quality;
-}
-
-#endif /* BROTLI_ENC_QUALITY_H_ */