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adding missing check to an optimization so it can be re-enabled

This commit is contained in:
nitsuja 2009-09-25 15:48:17 +00:00
parent ce279995de
commit ecbdbf21df
1 changed files with 23 additions and 26 deletions
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49
desmume/src/GPU.cpp
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@ -1103,32 +1103,29 @@ FORCEINLINE void rot_scale_op(GPU * gpu, s32 X, s32 Y, s16 PA, s16 PB, s16 PC, s
const s32 dx = (s32)PA; const s32 dx = (s32)PA;
const s32 dy = (s32)PC; const s32 dy = (s32)PC;
//not safe for 128 wide nonwrapping BG // as an optimization, specially handle the fairly common case of
//and probably not safe for other size nonwrapping BG which are scrolled near their edge // "unrotated + unscaled + no boundary checking required"
if(dx==0x100 && dy==0)
//// as an optimization, specially handle the fairly common case of {
//// "unrotated + unscaled + no boundary checking required" s32 auxX = x.bits.Integer;
//if(dx==0x100 && dy==0) s32 auxY = y.bits.Integer;
//{ if(WRAP || (auxX + LG < wh && auxX >= 0 && auxY < ht && auxY >= 0))
// s32 auxX = x.bits.Integer; {
// if(WRAP || auxX + LG < wh) if(WRAP)
// { {
// s32 auxY = y.bits.Integer; auxY = auxY & (ht-1);
// if(WRAP) auxX = auxX & (wh-1);
// { }
// auxY = auxY & (ht-1); for(int i = 0; i < LG; ++i)
// auxX = auxX & (wh-1); {
// } fun(gpu, auxX, auxY, wh, map, tile, pal, i);
// for(int i = 0; i < LG; ++i) auxX++;
// { if(WRAP)
// fun(gpu, auxX, auxY, wh, map, tile, pal, i); auxX = auxX & (wh-1);
// auxX++; }
// if(WRAP) return;
// auxX = auxX & (wh-1); }
// } }
// return;
// }
//}
for(int i = 0; i < LG; ++i) for(int i = 0; i < LG; ++i)
{ {