1 files changed, 0 insertions, 524 deletions

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;
-    }
-}
-
-
-