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SH4: fix IDCT

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Originally committed as revision 15897 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2008-11-20 22:57:57 +00:00
parent 4d382e2076
commit 516566a8ec
1 changed files with 12 additions and 13 deletions
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25
libavcodec/sh4/idct_sh4.c
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@ -21,6 +21,8 @@
*/
#include "libavcodec/dsputil.h"
#include "sh4.h"
#define c1 1.38703984532214752434 /* sqrt(2)*cos(1*pi/16) */
#define c2 1.30656296487637657577 /* sqrt(2)*cos(2*pi/16) */
#define c3 1.17587560241935884520 /* sqrt(2)*cos(3*pi/16) */
@ -51,9 +53,11 @@ static const float odd_table[] __attribute__ ((aligned(8))) = {
#undef c6
#undef c7
#if defined(__SH4_SINGLE__) || defined(__SH4_SINGLE_ONLY__)
#if 1
#define load_matrix(table) \
do { \
const float *t = table; \
__asm__ volatile( \
" fschg\n" \
" fmov @%0+,xd0\n" \
@ -65,15 +69,13 @@ static const float odd_table[] __attribute__ ((aligned(8))) = {
" fmov @%0+,xd12\n" \
" fmov @%0+,xd14\n" \
" fschg\n" \
:\
: "r"(table)\
: "0" \
)
: "+r"(t) \
); \
} while (0)
#define ftrv() \
__asm__ volatile("ftrv xmtrx,fv0" \
: "=f"(fr0),"=f"(fr1),"=f"(fr2),"=f"(fr3) \
: "0"(fr0), "1"(fr1), "2"(fr2), "3"(fr3) );
: "+f"(fr0),"+f"(fr1),"+f"(fr2),"+f"(fr3));
#define DEFREG \
register float fr0 __asm__("fr0"); \
@ -136,10 +138,9 @@ void idct_sh4(DCTELEM *block)
int i;
float tblock[8*8],*fblock;
int ofs1,ofs2,ofs3;
int fpscr;
#if defined(__SH4__)
__asm__ ("fschg");
#endif
fp_single_enter(fpscr);
/* row */
@ -248,9 +249,7 @@ void idct_sh4(DCTELEM *block)
block++;
} while(--i);
#if defined(__SH4__)
__asm__ ("fschg");
#endif
fp_single_leave(fpscr);
}
#else
void idct_sh4(DCTELEM *block)