Scarfski/bx
1
0
Fork 0
mirror of https://github.com/bkaradzic/bx.git synced 2026-10-23 17:21:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fixed floatFlip, SIMD variable-shift masks and %g precision, and added tests. (#417)

Browse Source
This commit is contained in:
Branimir Karadžić
2026-08-15 05:36:08 +00:00
committed by GitHub
parent 26ff6d907d
commit 9e3fadf6f1
7 changed files with 196 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
tests/math_test.cpp
View File

@@ -861,6 +861,43 @@ TEST_CASE("bitsToFloat, floatToBits, bitsToDouble, doubleToBits", "[math]")
STATIC_REQUIRE(0x123456789abcdef0ull == bx::doubleToBits(bx::bitsToDouble(0x123456789abcdef0ull) ) );
}
TEST_CASE("floatFlip", "[math]")
{
const float values[] =
{
bx::LimitsT<float>::min,
-1000.0f,
-30.0f,
-10.0f,
-1.0f,
-0.5f,
-0.0f,
0.0f,
0.5f,
1.0f,
10.0f,
30.0f,
1000.0f,
bx::LimitsT<float>::max,
};
for (uint32_t ii = 1; ii < BX_COUNTOF(values); ++ii)
{
const uint32_t prev = bx::floatFlip(bx::floatToBits(values[ii-1]) );
const uint32_t curr = bx::floatFlip(bx::floatToBits(values[ii ]) );
INFO("values[" << ii-1 << "] = " << values[ii-1] << " -> " << prev);
INFO("values[" << ii << "] = " << values[ii ] << " -> " << curr);
REQUIRE(prev <= curr);
}
REQUIRE(bx::floatFlip(bx::floatToBits(-0.0f) ) < bx::floatFlip(bx::floatToBits(0.0f) ) );
REQUIRE(bx::floatFlip(bx::floatToBits( 1.0f) ) != bx::floatFlip(bx::floatToBits(bx::bitsToFloat(bx::floatToBits( 1.0f)+1) ) ) );
REQUIRE(bx::floatFlip(bx::floatToBits(-1.0f) ) != bx::floatFlip(bx::floatToBits(bx::bitsToFloat(bx::floatToBits(-1.0f)+1) ) ) );
}
TEST_CASE("lerp", "[math]")
{
STATIC_REQUIRE(1389.0f == bx::lerp(1389.0f, 1453.0f, 0.0f) );