ShuriZma
/
pcsx2
mirror of https://github.com/PCSX2/pcsx2.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

IPU: replace BUTTERFLY macro with a function

This commit is contained in:
Gregory Hainaut 2016-08-27 19:00:06 +02:00
parent 796b2d4970
commit a5a2298c7d
1 changed files with 8 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
pcsx2/IPU/mpeg2lib/Idct.cpp
View File

@ -51,20 +51,17 @@ static __aligned16 u8 clip_lut[1024];
#define CLIP(i) ((clip_lut+384)[(i)])
static __fi void BUTTERFLY(int& t0, int& t1, int w0, int w1, int d0, int d1)
{
#if 0
#define BUTTERFLY(t0,t1,W0,W1,d0,d1) \
do { \
t0 = W0*d0 + W1*d1; \
t1 = W0*d1 - W1*d0; \
} while (0)
t0 = w0*d0 + w1*d1;
t1 = w0*d1 - w1*d0;
#else
#define BUTTERFLY(t0,t1,W0,W1,d0,d1) \
do { \
int tmp = W0 * (d0 + d1); \
t0 = tmp + (W1 - W0) * d1; \
t1 = tmp - (W1 + W0) * d0; \
} while (0)
int tmp = w0 * (d0 + d1);
t0 = tmp + (w1 - w0) * d1;
t1 = tmp - (w1 + w0) * d0;
#endif
}
static __fi void idct_row (s16 * const block)
{