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Add floor32, ceil32, round32 compatibility functions for burnings renderer.

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To avoid changing burnings now those functions have no IRRLICHT_FAST_MATH anymore, 
there's a new header irrMathFastCompat.h which has ..._fast functions doing the old behavior.
With the troubles they have documented.
I changed burnings to use those functions throughout.
Or as much as possible... Burnings probably also uses classes like SColor which also have functions 
using those, but I don't plan  to adapt them.
Maybe IRRLICHT_FAST_MATH should be a flag exlusive to burnings in the future, I don't think it makes 
much sense otherwise anymore (it often expects 32-bit asm).

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6012 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
cutealien
2019-12-16 16:15:04 +00:00
parent 3acf725ae3
commit 3280b3319e
25 changed files with 289 additions and 161 deletions
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4
source/Irrlicht/CSoftwareDriver2.cpp
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@@ -1884,8 +1884,8 @@ void CBurningVideoDriver::draw2DImage(const video::ITexture* texture, const core
core::recti clip=ViewPort;
if (ViewPort.getSize().Width != ScreenSize.Width)
{
dest.X=ViewPort.UpperLeftCorner.X+core::round32(destPos.X*ViewPort.getWidth()/(f32)ScreenSize.Width);
dest.Y=ViewPort.UpperLeftCorner.Y+core::round32(destPos.Y*ViewPort.getHeight()/(f32)ScreenSize.Height);
dest.X=ViewPort.UpperLeftCorner.X+core::round32_fast(destPos.X*ViewPort.getWidth()/(f32)ScreenSize.Width);
dest.Y=ViewPort.UpperLeftCorner.Y+core::round32_fast(destPos.Y*ViewPort.getHeight()/(f32)ScreenSize.Height);
if (clipRect)
{
clip.constrainTo(*clipRect);