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ae3ad10bcf
+ Got rid of zip lib requirement in G3D...
Still can re-enable code by defining _HAVE_ZIP...
+ Remove silly X11 lib dependency from G3D
Code doesn't seem to do anything yet anyway, and even if, we don't want it :p
+ Fix another weird G3D build problem...
+ Remove some __asm usage in g3d, which is not available on Win64
My editor also decided to remove a ton of trailing white spaces...tss...
+ Reapply G3D fixes for 64bit VC
+ not use SSE specific header when SSE not enabled in *nix
+ Updated project files
+ New vmap_assembler VC90/VC80 Project
+ vmap assembler binaries updates
NOTE: Old vmap fikes expected work (as tests show) with new library version.
But better use new generated versions. Its different in small parts to bad or good...
(based on Lynx3d's repo commit 44798d3)
Signed-off-by: VladimirMangos <vladimir@getmangos.com>
92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
/**
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@file HashTrait.h
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@maintainer Morgan McGuire, http://graphics.cs.williams.edu
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@created 2008-10-01
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@edited 2009-11-01
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Copyright 2000-2009, Morgan McGuire.
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All rights reserved.
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*/
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#ifndef G3D_HashTrait_h
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#define G3D_HashTrait_h
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#include "G3D/platform.h"
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#include "G3D/Crypto.h"
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#include "G3D/g3dmath.h"
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#include "G3D/uint128.h"
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/** Must be specialized for custom types.
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@see G3D::Table for specialization requirements.
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*/
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template <typename T> struct HashTrait{};
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template <typename T> struct HashTrait<T*> {
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static size_t hashCode(const void* k) { return reinterpret_cast<size_t>(k); }
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};
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#if 0
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template <> struct HashTrait <int> {
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static size_t hashCode(int k) { return static_cast<size_t>(k); }
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};
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#endif
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template <> struct HashTrait <G3D::int16> {
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static size_t hashCode(G3D::int16 k) { return static_cast<size_t>(k); }
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};
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template <> struct HashTrait <G3D::uint16> {
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static size_t hashCode(G3D::uint16 k) { return static_cast<size_t>(k); }
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};
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//template <> struct HashTrait <int> {
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// static size_t hashCode(int k) { return static_cast<size_t>(k); }
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//};
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template <> struct HashTrait <G3D::int32> {
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static size_t hashCode(G3D::int32 k) { return static_cast<size_t>(k); }
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};
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template <> struct HashTrait <G3D::uint32> {
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static size_t hashCode(G3D::uint32 k) { return static_cast<size_t>(k); }
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};
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#if 0
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template <> struct HashTrait <long unsigned int> {
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static size_t hashCode(G3D::uint32 k) { return static_cast<size_t>(k); }
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};
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#endif
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template <> struct HashTrait <G3D::int64> {
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static size_t hashCode(G3D::int64 k) { return static_cast<size_t>(k); }
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};
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template <> struct HashTrait <G3D::uint64> {
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static size_t hashCode(G3D::uint64 k) { return static_cast<size_t>(k); }
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};
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template <> struct HashTrait <std::string> {
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static size_t hashCode(const std::string& k) { return static_cast<size_t>(G3D::Crypto::crc32(k.c_str(), k.size())); }
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};
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template <> struct HashTrait<G3D::uint128> {
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// Use the FNV-1 hash (http://isthe.com/chongo/tech/comp/fnv/#FNV-1).
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static size_t hashCode(G3D::uint128 key) {
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static const G3D::uint128 FNV_PRIME_128(1 << 24, 0x159);
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static const G3D::uint128 FNV_OFFSET_128(0xCF470AAC6CB293D2ULL, 0xF52F88BF32307F8FULL);
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G3D::uint128 hash = FNV_OFFSET_128;
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G3D::uint128 mask(0, 0xFF);
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for (int i = 0; i < 16; ++i) {
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hash *= FNV_PRIME_128;
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hash ^= (mask & key);
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key >>= 8;
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}
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G3D::uint64 foldedHash = hash.hi ^ hash.lo;
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return static_cast<size_t>((foldedHash >> 32) ^ (foldedHash & 0xFFFFFFFF));
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}
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};
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#endif
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