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-rw-r--r--src/common/CMakeLists.txt2
-rw-r--r--src/common/hash.cpp524
-rw-r--r--src/common/hash.h17
3 files changed, 0 insertions, 543 deletions
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 9a9f1a46b..b5b129a09 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -5,7 +5,6 @@ set(SRCS
break_points.cpp
emu_window.cpp
file_util.cpp
- hash.cpp
key_map.cpp
logging/filter.cpp
logging/text_formatter.cpp
@@ -36,7 +35,6 @@ set(HEADERS
emu_window.h
fifo_queue.h
file_util.h
- hash.h
key_map.h
linear_disk_cache.h
logging/text_formatter.h
diff --git a/src/common/hash.cpp b/src/common/hash.cpp
deleted file mode 100644
index e2364d700..000000000
--- a/src/common/hash.cpp
+++ /dev/null
@@ -1,524 +0,0 @@
-// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-
-#include "common/common_funcs.h" // For rotl
-#include "common/hash.h"
-#include "common/platform.h"
-
-#if _M_SSE >= 0x402
-#include "common/cpu_detect.h"
-#include <nmmintrin.h>
-#endif
-
-static u64 (*ptrHashFunction)(const u8 *src, int len, u32 samples) = &GetMurmurHash3;
-
-// uint32_t
-// WARNING - may read one more byte!
-// Implementation from Wikipedia.
-u32 HashFletcher(const u8* data_u8, size_t length)
-{
- const u16* data = (const u16*)data_u8; /* Pointer to the data to be summed */
- size_t len = (length + 1) / 2; /* Length in 16-bit words */
- u32 sum1 = 0xffff, sum2 = 0xffff;
-
- while (len)
- {
- size_t tlen = len > 360 ? 360 : len;
- len -= tlen;
-
- do {
- sum1 += *data++;
- sum2 += sum1;
- }
- while (--tlen);
-
- sum1 = (sum1 & 0xffff) + (sum1 >> 16);
- sum2 = (sum2 & 0xffff) + (sum2 >> 16);
- }
-
- // Second reduction step to reduce sums to 16 bits
- sum1 = (sum1 & 0xffff) + (sum1 >> 16);
- sum2 = (sum2 & 0xffff) + (sum2 >> 16);
- return(sum2 << 16 | sum1);
-}
-
-
-// Implementation from Wikipedia
-// Slightly slower than Fletcher above, but slightly more reliable.
-#define MOD_ADLER 65521
-// data: Pointer to the data to be summed; len is in bytes
-u32 HashAdler32(const u8* data, size_t len)
-{
- u32 a = 1, b = 0;
-
- while (len)
- {
- size_t tlen = len > 5550 ? 5550 : len;
- len -= tlen;
-
- do
- {
- a += *data++;
- b += a;
- }
- while (--tlen);
-
- a = (a & 0xffff) + (a >> 16) * (65536 - MOD_ADLER);
- b = (b & 0xffff) + (b >> 16) * (65536 - MOD_ADLER);
- }
-
- // It can be shown that a <= 0x1013a here, so a single subtract will do.
- if (a >= MOD_ADLER)
- {
- a -= MOD_ADLER;
- }
-
- // It can be shown that b can reach 0xfff87 here.
- b = (b & 0xffff) + (b >> 16) * (65536 - MOD_ADLER);
-
- if (b >= MOD_ADLER)
- {
- b -= MOD_ADLER;
- }
-
- return((b << 16) | a);
-}
-
-// Stupid hash - but can't go back now :)
-// Don't use for new things. At least it's reasonably fast.
-u32 HashEctor(const u8* ptr, int length)
-{
- u32 crc = 0;
-
- for (int i = 0; i < length; i++)
- {
- crc ^= ptr[i];
- crc = (crc << 3) | (crc >> 29);
- }
-
- return(crc);
-}
-
-
-#if EMU_ARCH_BITS == 64
-
-//-----------------------------------------------------------------------------
-// Block read - if your platform needs to do endian-swapping or can only
-// handle aligned reads, do the conversion here
-
-inline u64 getblock(const u64 * p, int i)
-{
- return p[i];
-}
-
-//----------
-// Block mix - combine the key bits with the hash bits and scramble everything
-
-inline void bmix64(u64 & h1, u64 & h2, u64 & k1, u64 & k2, u64 & c1, u64 & c2)
-{
- k1 *= c1;
- k1 = _rotl64(k1,23);
- k1 *= c2;
- h1 ^= k1;
- h1 += h2;
-
- h2 = _rotl64(h2,41);
-
- k2 *= c2;
- k2 = _rotl64(k2,23);
- k2 *= c1;
- h2 ^= k2;
- h2 += h1;
-
- h1 = h1*3+0x52dce729;
- h2 = h2*3+0x38495ab5;
-
- c1 = c1*5+0x7b7d159c;
- c2 = c2*5+0x6bce6396;
-}
-
-//----------
-// Finalization mix - avalanches all bits to within 0.05% bias
-
-inline u64 fmix64(u64 k)
-{
- k ^= k >> 33;
- k *= 0xff51afd7ed558ccd;
- k ^= k >> 33;
- k *= 0xc4ceb9fe1a85ec53;
- k ^= k >> 33;
-
- return k;
-}
-
-u64 GetMurmurHash3(const u8 *src, int len, u32 samples)
-{
- const u8 * data = (const u8*)src;
- const int nblocks = len / 16;
- u32 Step = (len / 8);
- if(samples == 0) samples = std::max(Step, 1u);
- Step = Step / samples;
- if(Step < 1) Step = 1;
-
- u64 h1 = 0x9368e53c2f6af274;
- u64 h2 = 0x586dcd208f7cd3fd;
-
- u64 c1 = 0x87c37b91114253d5;
- u64 c2 = 0x4cf5ad432745937f;
-
-
- //----------
- // body
-
- const u64 * blocks = (const u64 *)(data);
-
- for(int i = 0; i < nblocks; i+=Step)
- {
- u64 k1 = getblock(blocks,i*2+0);
- u64 k2 = getblock(blocks,i*2+1);
-
- bmix64(h1,h2,k1,k2,c1,c2);
- }
-
- //----------
- // tail
-
- const u8 * tail = (const u8*)(data + nblocks*16);
-
- u64 k1 = 0;
- u64 k2 = 0;
-
- switch(len & 15)
- {
- case 15: k2 ^= u64(tail[14]) << 48;
- case 14: k2 ^= u64(tail[13]) << 40;
- case 13: k2 ^= u64(tail[12]) << 32;
- case 12: k2 ^= u64(tail[11]) << 24;
- case 11: k2 ^= u64(tail[10]) << 16;
- case 10: k2 ^= u64(tail[ 9]) << 8;
- case 9: k2 ^= u64(tail[ 8]) << 0;
-
- case 8: k1 ^= u64(tail[ 7]) << 56;
- case 7: k1 ^= u64(tail[ 6]) << 48;
- case 6: k1 ^= u64(tail[ 5]) << 40;
- case 5: k1 ^= u64(tail[ 4]) << 32;
- case 4: k1 ^= u64(tail[ 3]) << 24;
- case 3: k1 ^= u64(tail[ 2]) << 16;
- case 2: k1 ^= u64(tail[ 1]) << 8;
- case 1: k1 ^= u64(tail[ 0]) << 0;
- bmix64(h1,h2,k1,k2,c1,c2);
- };
-
- //----------
- // finalization
-
- h2 ^= len;
-
- h1 += h2;
- h2 += h1;
-
- h1 = fmix64(h1);
- h2 = fmix64(h2);
-
- h1 += h2;
-
- return h1;
-}
-
-
-// CRC32 hash using the SSE4.2 instruction
-u64 GetCRC32(const u8 *src, int len, u32 samples)
-{
-#if _M_SSE >= 0x402
- u64 h = len;
- u32 Step = (len / 8);
- const u64 *data = (const u64 *)src;
- const u64 *end = data + Step;
- if(samples == 0) samples = std::max(Step, 1u);
- Step = Step / samples;
- if(Step < 1) Step = 1;
- while(data < end)
- {
- h = _mm_crc32_u64(h, data[0]);
- data += Step;
- }
-
- const u8 *data2 = (const u8*)end;
- return _mm_crc32_u64(h, u64(data2[0]));
-#else
- return 0;
-#endif
-}
-
-
-/*
- * NOTE: This hash function is used for custom texture loading/dumping, so
- * it should not be changed, which would require all custom textures to be
- * recalculated for their new hash values. If the hashing function is
- * changed, make sure this one is still used when the legacy parameter is
- * true.
- */
-u64 GetHashHiresTexture(const u8 *src, int len, u32 samples)
-{
- const u64 m = 0xc6a4a7935bd1e995;
- u64 h = len * m;
- const int r = 47;
- u32 Step = (len / 8);
- const u64 *data = (const u64 *)src;
- const u64 *end = data + Step;
- if(samples == 0) samples = std::max(Step, 1u);
- Step = Step / samples;
- if(Step < 1) Step = 1;
- while(data < end)
- {
- u64 k = data[0];
- data+=Step;
- k *= m;
- k ^= k >> r;
- k *= m;
- h ^= k;
- h *= m;
- }
-
- const u8 * data2 = (const u8*)end;
-
- switch(len & 7)
- {
- case 7: h ^= u64(data2[6]) << 48;
- case 6: h ^= u64(data2[5]) << 40;
- case 5: h ^= u64(data2[4]) << 32;
- case 4: h ^= u64(data2[3]) << 24;
- case 3: h ^= u64(data2[2]) << 16;
- case 2: h ^= u64(data2[1]) << 8;
- case 1: h ^= u64(data2[0]);
- h *= m;
- };
-
- h ^= h >> r;
- h *= m;
- h ^= h >> r;
-
- return h;
-}
-#else
-// CRC32 hash using the SSE4.2 instruction
-u64 GetCRC32(const u8 *src, int len, u32 samples)
-{
-#if _M_SSE >= 0x402
- u32 h = len;
- u32 Step = (len/4);
- const u32 *data = (const u32 *)src;
- const u32 *end = data + Step;
- if(samples == 0) samples = std::max(Step, 1u);
- Step = Step / samples;
- if(Step < 1) Step = 1;
- while(data < end)
- {
- h = _mm_crc32_u32(h, data[0]);
- data += Step;
- }
-
- const u8 *data2 = (const u8*)end;
- return (u64)_mm_crc32_u32(h, u32(data2[0]));
-#else
- return 0;
-#endif
-}
-
-//-----------------------------------------------------------------------------
-// Block read - if your platform needs to do endian-swapping or can only
-// handle aligned reads, do the conversion here
-
-inline u32 getblock(const u32 * p, int i)
-{
- return p[i];
-}
-
-//----------
-// Finalization mix - force all bits of a hash block to avalanche
-
-// avalanches all bits to within 0.25% bias
-
-inline u32 fmix32(u32 h)
-{
- h ^= h >> 16;
- h *= 0x85ebca6b;
- h ^= h >> 13;
- h *= 0xc2b2ae35;
- h ^= h >> 16;
-
- return h;
-}
-
-inline void bmix32(u32 & h1, u32 & h2, u32 & k1, u32 & k2, u32 & c1, u32 & c2)
-{
- k1 *= c1;
- k1 = _rotl(k1,11);
- k1 *= c2;
- h1 ^= k1;
- h1 += h2;
-
- h2 = _rotl(h2,17);
-
- k2 *= c2;
- k2 = _rotl(k2,11);
- k2 *= c1;
- h2 ^= k2;
- h2 += h1;
-
- h1 = h1*3+0x52dce729;
- h2 = h2*3+0x38495ab5;
-
- c1 = c1*5+0x7b7d159c;
- c2 = c2*5+0x6bce6396;
-}
-
-//----------
-
-u64 GetMurmurHash3(const u8* src, int len, u32 samples)
-{
- const u8 * data = (const u8*)src;
- u32 out[2];
- const int nblocks = len / 8;
- u32 Step = (len / 4);
- if(samples == 0) samples = std::max(Step, 1u);
- Step = Step / samples;
- if(Step < 1) Step = 1;
-
- u32 h1 = 0x8de1c3ac;
- u32 h2 = 0xbab98226;
-
- u32 c1 = 0x95543787;
- u32 c2 = 0x2ad7eb25;
-
- //----------
- // body
-
- const u32 * blocks = (const u32 *)(data + nblocks*8);
-
- for(int i = -nblocks; i < 0; i+=Step)
- {
- u32 k1 = getblock(blocks,i*2+0);
- u32 k2 = getblock(blocks,i*2+1);
-
- bmix32(h1,h2,k1,k2,c1,c2);
- }
-
- //----------
- // tail
-
- const u8 * tail = (const u8*)(data + nblocks*8);
-
- u32 k1 = 0;
- u32 k2 = 0;
-
- switch(len & 7)
- {
- case 7: k2 ^= tail[6] << 16;
- case 6: k2 ^= tail[5] << 8;
- case 5: k2 ^= tail[4] << 0;
- case 4: k1 ^= tail[3] << 24;
- case 3: k1 ^= tail[2] << 16;
- case 2: k1 ^= tail[1] << 8;
- case 1: k1 ^= tail[0] << 0;
- bmix32(h1,h2,k1,k2,c1,c2);
- };
-
- //----------
- // finalization
-
- h2 ^= len;
-
- h1 += h2;
- h2 += h1;
-
- h1 = fmix32(h1);
- h2 = fmix32(h2);
-
- h1 += h2;
- h2 += h1;
-
- out[0] = h1;
- out[1] = h2;
-
- return *((u64 *)&out);
-}
-
-/*
- * FIXME: The old 32-bit version of this hash made different hashes than the
- * 64-bit version. Until someone can make a new version of the 32-bit one that
- * makes identical hashes, this is just a c/p of the 64-bit one.
- */
-u64 GetHashHiresTexture(const u8 *src, int len, u32 samples)
-{
- const u64 m = 0xc6a4a7935bd1e995ULL;
- u64 h = len * m;
- const int r = 47;
- u32 Step = (len / 8);
- const u64 *data = (const u64 *)src;
- const u64 *end = data + Step;
- if(samples == 0) samples = std::max(Step, 1u);
- Step = Step / samples;
- if(Step < 1) Step = 1;
- while(data < end)
- {
- u64 k = data[0];
- data+=Step;
- k *= m;
- k ^= k >> r;
- k *= m;
- h ^= k;
- h *= m;
- }
-
- const u8 * data2 = (const u8*)end;
-
- switch(len & 7)
- {
- case 7: h ^= u64(data2[6]) << 48;
- case 6: h ^= u64(data2[5]) << 40;
- case 5: h ^= u64(data2[4]) << 32;
- case 4: h ^= u64(data2[3]) << 24;
- case 3: h ^= u64(data2[2]) << 16;
- case 2: h ^= u64(data2[1]) << 8;
- case 1: h ^= u64(data2[0]);
- h *= m;
- };
-
- h ^= h >> r;
- h *= m;
- h ^= h >> r;
-
- return h;
-}
-#endif
-
-u64 GetHash64(const u8 *src, int len, u32 samples)
-{
- return ptrHashFunction(src, len, samples);
-}
-
-// sets the hash function used for the texture cache
-void SetHash64Function(bool useHiresTextures)
-{
- if (useHiresTextures)
- {
- ptrHashFunction = &GetHashHiresTexture;
- }
-#if _M_SSE >= 0x402
- else if (cpu_info.bSSE4_2 && !useHiresTextures) // sse crc32 version
- {
- ptrHashFunction = &GetCRC32;
- }
-#endif
- else
- {
- ptrHashFunction = &GetMurmurHash3;
- }
-}
-
-
-
diff --git a/src/common/hash.h b/src/common/hash.h
deleted file mode 100644
index 0afaf0e37..000000000
--- a/src/common/hash.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include "common/common_types.h"
-
-u32 HashFletcher(const u8* data_u8, size_t length); // FAST. Length & 1 == 0.
-u32 HashAdler32(const u8* data, size_t len); // Fairly accurate, slightly slower
-u32 HashFNV(const u8* ptr, int length); // Another fast and decent hash
-u32 HashEctor(const u8* ptr, int length); // JUNK. DO NOT USE FOR NEW THINGS
-u64 GetCRC32(const u8 *src, int len, u32 samples); // SSE4.2 version of CRC32
-u64 GetHashHiresTexture(const u8 *src, int len, u32 samples);
-u64 GetMurmurHash3(const u8 *src, int len, u32 samples);
-u64 GetHash64(const u8 *src, int len, u32 samples);
-void SetHash64Function(bool useHiresTextures);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 02:04:56 +0100