summaryrefslogtreecommitdiff
path: root/Build/source/utils/xz-4.999.9beta/src/liblzma/rangecoder/price.h
diff options
context:
space:
mode:
Diffstat (limited to 'Build/source/utils/xz-4.999.9beta/src/liblzma/rangecoder/price.h')
-rw-r--r--Build/source/utils/xz-4.999.9beta/src/liblzma/rangecoder/price.h92
1 files changed, 0 insertions, 92 deletions
diff --git a/Build/source/utils/xz-4.999.9beta/src/liblzma/rangecoder/price.h b/Build/source/utils/xz-4.999.9beta/src/liblzma/rangecoder/price.h
deleted file mode 100644
index 8ae02ca7474..00000000000
--- a/Build/source/utils/xz-4.999.9beta/src/liblzma/rangecoder/price.h
+++ /dev/null
@@ -1,92 +0,0 @@
-///////////////////////////////////////////////////////////////////////////////
-//
-/// \file price.h
-/// \brief Probability price calculation
-//
-// Author: Igor Pavlov
-//
-// This file has been put into the public domain.
-// You can do whatever you want with this file.
-//
-///////////////////////////////////////////////////////////////////////////////
-
-#ifndef LZMA_PRICE_H
-#define LZMA_PRICE_H
-
-
-#define RC_MOVE_REDUCING_BITS 4
-#define RC_BIT_PRICE_SHIFT_BITS 4
-#define RC_PRICE_TABLE_SIZE (RC_BIT_MODEL_TOTAL >> RC_MOVE_REDUCING_BITS)
-
-#define RC_INFINITY_PRICE (UINT32_C(1) << 30)
-
-
-/// Lookup table for the inline functions defined in this file.
-extern const uint8_t lzma_rc_prices[RC_PRICE_TABLE_SIZE];
-
-
-static inline uint32_t
-rc_bit_price(const probability prob, const uint32_t bit)
-{
- return lzma_rc_prices[(prob ^ ((UINT32_C(0) - bit)
- & (RC_BIT_MODEL_TOTAL - 1))) >> RC_MOVE_REDUCING_BITS];
-}
-
-
-static inline uint32_t
-rc_bit_0_price(const probability prob)
-{
- return lzma_rc_prices[prob >> RC_MOVE_REDUCING_BITS];
-}
-
-
-static inline uint32_t
-rc_bit_1_price(const probability prob)
-{
- return lzma_rc_prices[(prob ^ (RC_BIT_MODEL_TOTAL - 1))
- >> RC_MOVE_REDUCING_BITS];
-}
-
-
-static inline uint32_t
-rc_bittree_price(const probability *const probs,
- const uint32_t bit_levels, uint32_t symbol)
-{
- uint32_t price = 0;
- symbol += UINT32_C(1) << bit_levels;
-
- do {
- const uint32_t bit = symbol & 1;
- symbol >>= 1;
- price += rc_bit_price(probs[symbol], bit);
- } while (symbol != 1);
-
- return price;
-}
-
-
-static inline uint32_t
-rc_bittree_reverse_price(const probability *const probs,
- uint32_t bit_levels, uint32_t symbol)
-{
- uint32_t price = 0;
- uint32_t model_index = 1;
-
- do {
- const uint32_t bit = symbol & 1;
- symbol >>= 1;
- price += rc_bit_price(probs[model_index], bit);
- model_index = (model_index << 1) + bit;
- } while (--bit_levels != 0);
-
- return price;
-}
-
-
-static inline uint32_t
-rc_direct_price(const uint32_t bits)
-{
- return bits << RC_BIT_PRICE_SHIFT_BITS;
-}
-
-#endif