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VideoCommon: Properly upscale the mantissa of some fog params. 

Might fix games with minor gfx glitches, try e.g. Super Mario Sunshine or Super Mario Galaxy 2.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6319 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
NeoBrainX 2010-10-29 21:37:20 +00:00
parent 6edb5f4847
commit f7d1184d87
1 changed files with 2 additions and 2 deletions
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4
Source/Core/VideoCommon/Src/BPMemory.h
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@ -650,7 +650,7 @@ union FogParam0
float GetA() {
union { u32 i; float f; } dummy;
dummy.i = ((u32)sign<<31)|((u32)exponent<<23)|((u32)mantissa<<12);
dummy.i = ((u32)sign<<31)|((u32)exponent<<23)|((u32)mantissa * 0x7FFFFF / 0x7FF); // scale mantissa from 11 to 23 bits
return dummy.f;
}
@ -671,7 +671,7 @@ union FogParam3
// amount to subtract from eyespacez after range adjustment
float GetC() {
union { u32 i; float f; } dummy;
dummy.i = ((u32)c_sign << 31) | ((u32)c_exp << 23) | ((u32)c_mant << 12);
dummy.i = ((u32)c_sign << 31) | ((u32)c_exp << 23) | ((u32)c_mant * 0x7FFFFF / 0x7FF); // scale mantissa from 11 to 23 bits
return dummy.f;
}