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#ttp 331438 UE4: PlatformMath refactor

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#proj core
#branch UE4
#summary Rename Trunc, Round, Floor, Ceil to TruncToInt, RoundToInt, FloorToInt, CeilToInt. Added *ToFloat versions. Repeated for FGenericPlatformMath and all derived classes for all platforms wherever applicable. Corrected comment in Fractional and added Frac() which does HLSL-style fractional (x - floor(x)). Checked for compilation on all projects (with cooking levels wherever applicable). Didn't change Fractional to Frac, this will be done in second commit.
#codereview robert.manuszewski

[CL 2064306 by Mikolaj Sieluzycki in Main branch]
This commit is contained in:
Mikolaj Sieluzycki
2014-05-06 06:26:25 -04:00
committed by UnrealBot
parent ca42ffc1f0
commit 45c031d576
261 changed files with 1302 additions and 1199 deletions
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Engine/Source/Programs/UnrealLightmass/Private/Lighting/LightingMesh.cpp
+3 -3
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@@ -233,12 +233,12 @@ void FStaticLightingMesh::CreateMeshAreaLights(
// if we have range -.2 to .3, we need space for the -1 .. 0 wrap, and the 0 to 1 wrap (ie 2 iterations)
// @todo UE4: Actually, if the Min was used to modify the UV when looping through the Corners array,
// we wouldn't need full integer ranges
const int32 NumIterationsX = (FMath::Floor(MaxUV.X) - FMath::Floor(MinUV.X)) + 1;
const int32 NumIterationsY = (FMath::Floor(MaxUV.Y) - FMath::Floor(MinUV.Y)) + 1;
const int32 NumIterationsX = (FMath::FloorToInt(MaxUV.X) - FMath::FloorToInt(MinUV.X)) + 1;
const int32 NumIterationsY = (FMath::FloorToInt(MaxUV.Y) - FMath::FloorToInt(MinUV.Y)) + 1;
// calculate the bias and scale needed to map the random UV range into 0 .. NumIterations when rasterizing
// into the TexelToCornersMap
const FVector2D UVBias(-FMath::Floor(MinUV.X), -FMath::Floor(MinUV.Y));
const FVector2D UVBias(-FMath::FloorToFloat(MinUV.X), -FMath::FloorToFloat(MinUV.Y));
const FVector2D UVScale(1.0f / NumIterationsX, 1.0f / NumIterationsY);
for (int32 MaterialIndex = 0; MaterialIndex < MaterialElements.Num(); MaterialIndex++)