104 lines
4.4 KiB
C++
104 lines
4.4 KiB
C++
//----------------------------------------------------------------------------//
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// //
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// ozz-animation is hosted at http://github.com/guillaumeblanc/ozz-animation //
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// and distributed under the MIT License (MIT). //
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// //
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// Copyright (c) Guillaume Blanc //
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// //
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// Permission is hereby granted, free of charge, to any person obtaining a //
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// copy of this software and associated documentation files (the "Software"), //
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// to deal in the Software without restriction, including without limitation //
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// the rights to use, copy, modify, merge, publish, distribute, sublicense, //
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// and/or sell copies of the Software, and to permit persons to whom the //
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// Software is furnished to do so, subject to the following conditions: //
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// //
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// The above copyright notice and this permission notice shall be included in //
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// all copies or substantial portions of the Software. //
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// //
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR //
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, //
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL //
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER //
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING //
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER //
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// DEALINGS IN THE SOFTWARE. //
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// //
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//----------------------------------------------------------------------------//
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#include "ozz/base/endianness.h"
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#include "gtest/gtest.h"
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TEST(NativeEndianness, Endianness) {
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// Uses pre-defined macro to check know endianness.
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// Endianness detection does not rely on this as this is not standard, but it
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// helps with testing.
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// x86 and x86-64 Little endian processors.
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#if defined(i386) || defined(__i386__) || /*GNU C*/ \
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defined(__X86__) || /*MinGW32*/ \
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defined(__x86_64__) || /*Intel C/C++*/ \
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defined(_M_IX86) || /*Visual Studio*/ \
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defined(_M_X64) /*Visual Studio*/
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EXPECT_EQ(ozz::GetNativeEndianness(), ozz::kLittleEndian);
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#endif
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// PowerPc Big endian processors.
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#if defined(__POWERPC__) || defined(__ppc__) || \
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defined(__powerpc__) || /*GNU C*/ \
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defined(__IA64__) || defined(__ia64__) || \
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defined(_M_PPC) /*Visual Studio*/
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EXPECT_EQ(ozz::GetNativeEndianness(), ozz::kBigEndian);
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#endif
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// Itanium Big endian processors.
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#if defined(_IA64) || /*GNU C*/ \
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defined(_M_IA64) || /*Visual Studio*/ \
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defined(_M_IA64) /*Intel C/C++*/
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EXPECT_EQ(ozz::GetNativeEndianness(), ozz::kBigEndian);
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#endif
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}
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TEST(Swap, Endianness) {
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{ // 1 byte swapping.
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uint8_t uo = 0x46;
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EXPECT_EQ(ozz::EndianSwap(uo), 0x46);
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}
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{ // 1 byte array swapping.
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uint8_t uo[] = {0x46, 0x58};
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ozz::EndianSwap(uo, OZZ_ARRAY_SIZE(uo));
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EXPECT_EQ(uo[0], 0x46);
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EXPECT_EQ(uo[1], 0x58);
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}
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{ // 2 bytes swapping.
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uint16_t uo = 0x4699;
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EXPECT_EQ(ozz::EndianSwap(uo), 0x9946);
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}
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{ // 2 bytes array swapping.
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uint16_t uo[] = {0x4699, 0x5814};
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ozz::EndianSwap(uo, OZZ_ARRAY_SIZE(uo));
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EXPECT_EQ(uo[0], 0x9946);
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EXPECT_EQ(uo[1], 0x1458);
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}
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{ // 4 bytes swapping.
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uint32_t uo = 0x46992715;
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EXPECT_EQ(ozz::EndianSwap(uo), 0x15279946u);
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}
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{ // 2 bytes array swapping.
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uint32_t uo[] = {0x46992715, 0x58142611};
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ozz::EndianSwap(uo, OZZ_ARRAY_SIZE(uo));
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EXPECT_EQ(uo[0], 0x15279946u);
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EXPECT_EQ(uo[1], 0x11261458u);
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}
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{ // 8 bytes swapping.
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uint64_t uo = 0x4699271511190417ull;
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EXPECT_EQ(ozz::EndianSwap(uo), 0x1704191115279946ull);
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}
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{ // 8 bytes array swapping.
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uint64_t uo[] = {0x4699271511190417ull, 0x5814264669080735ull};
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ozz::EndianSwap(uo, OZZ_ARRAY_SIZE(uo));
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EXPECT_EQ(uo[0], 0x1704191115279946ull);
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EXPECT_EQ(uo[1], 0x3507086946261458ull);
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}
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}
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