commit x64 compilation from lulu cause the other branch dont seems to compile properly at home
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63
include/platform/memory/endian.cpp
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63
include/platform/memory/endian.cpp
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/* -----------------------------------------------------------------------------
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GSFramework
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Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
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----------------------------------------------------------------------------- */
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#include "memory/endian.h"
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#include "platform_config.h"
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#include "log/log.h"
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namespace GS {
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namespace Endian {
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static Config g_host_endian = Undefined;
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//------------------------------------------------------------------------------
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void SwapBytes(void *in_p, size_t n)
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{
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if (n == 1)
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return;
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__ASSERT__(!(n & 1));
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char *p = (char *)in_p;
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for (size_t c = 0; c < n / 2; ++c)
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{
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char tmp = p[c];
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p[c] = p[n - c - 1];
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p[n - c - 1] = tmp;
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}
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}
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Config GetHostConfiguration()
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{
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if (g_host_endian == Undefined)
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{
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union
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{
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uint i;
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char c[4];
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} bint = { 0x01020304 };
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g_host_endian = bint.c[0] == 1 ? Big : Little;
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if (g_host_endian == Big)
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__LOG__ << "Memory configuration: Big endian.\n";
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else __LOG__ << "Memory configuration: Little endian.\n";
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}
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return g_host_endian;
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}
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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void *ToHost(void *p, size_t size, Config source_endian)
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{
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if (GetHostConfiguration() != source_endian)
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SwapBytes(p, size);
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return p;
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}
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//------------------------------------------------------------------------------
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}
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}
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