69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
/* Copyright (c) 2010 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in 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,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "lib/self_test.h"
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#include "lib/lib.h"
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class TestLib : public CxxTest::TestSuite
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{
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public:
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// 16-bit saturating arithmetic
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void test_addusw()
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{
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TS_ASSERT_EQUALS(addusw(4u, 0x100u), 0x0104u);
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TS_ASSERT_EQUALS(addusw(0u, 0xFFFFu), 0xFFFFu);
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TS_ASSERT_EQUALS(addusw(0x8000u, 0x8000u), 0xFFFFu);
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TS_ASSERT_EQUALS(addusw(0xFFF0u, 0x0004u), 0xFFF4u);
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TS_ASSERT_EQUALS(addusw(0xFFFFu, 0xFFFFu), 0xFFFFu);
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}
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void test_subusw()
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{
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TS_ASSERT_EQUALS(subusw(4u, 0x100u), 0u);
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TS_ASSERT_EQUALS(subusw(100u, 90u), 10u);
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TS_ASSERT_EQUALS(subusw(0x8000u, 0x8000u), 0u);
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TS_ASSERT_EQUALS(subusw(0x0FFFu, 0xFFFFu), 0u);
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TS_ASSERT_EQUALS(subusw(0xFFFFu, 0x0FFFu), 0xF000u);
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}
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void test_hi_lo()
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{
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TS_ASSERT_EQUALS(u64_hi(0x0123456789ABCDEFull), 0x01234567u);
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TS_ASSERT_EQUALS(u64_hi(0x0000000100000002ull), 0x00000001u);
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TS_ASSERT_EQUALS(u64_lo(0x0123456789ABCDEFull), 0x89ABCDEFu);
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TS_ASSERT_EQUALS(u64_lo(0x0000000100000002ull), 0x00000002u);
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TS_ASSERT_EQUALS(u32_hi(0x01234567u), 0x0123u);
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TS_ASSERT_EQUALS(u32_hi(0x00000001u), 0x0000u);
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TS_ASSERT_EQUALS(u32_lo(0x01234567u), 0x4567u);
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TS_ASSERT_EQUALS(u32_lo(0x00000001u), 0x0001u);
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TS_ASSERT_EQUALS(u64_from_u32(0xFFFFFFFFu, 0x80000008u), 0xFFFFFFFF80000008ull);
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TS_ASSERT_EQUALS(u32_from_u16(0x8000u, 0xFFFFu), 0x8000FFFFu);
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}
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// fp_to_u?? already validate the result.
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};
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