diff options
Diffstat (limited to 'src/libmpeg2/idct_mmx.c')
| -rw-r--r-- | src/libmpeg2/idct_mmx.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/libmpeg2/idct_mmx.c b/src/libmpeg2/idct_mmx.c index d8822f6d9..bee54e83b 100644 --- a/src/libmpeg2/idct_mmx.c +++ b/src/libmpeg2/idct_mmx.c @@ -654,6 +654,25 @@ static void block_add (int16_t * block, uint8_t * dest, int stride) movq_r2m (mm3, *(dest+stride)); } +static inline void block_zero (int16_t * block) { + pxor_r2r (mm0, mm0); + movq_r2m (mm0, *(block+0*4)); + movq_r2m (mm0, *(block+1*4)); + movq_r2m (mm0, *(block+2*4)); + movq_r2m (mm0, *(block+3*4)); + movq_r2m (mm0, *(block+4*4)); + movq_r2m (mm0, *(block+5*4)); + movq_r2m (mm0, *(block+6*4)); + movq_r2m (mm0, *(block+7*4)); + movq_r2m (mm0, *(block+8*4)); + movq_r2m (mm0, *(block+9*4)); + movq_r2m (mm0, *(block+10*4)); + movq_r2m (mm0, *(block+11*4)); + movq_r2m (mm0, *(block+12*4)); + movq_r2m (mm0, *(block+13*4)); + movq_r2m (mm0, *(block+14*4)); + movq_r2m (mm0, *(block+15*4)); +} declare_idct (mmxext_idct, mmxext_table, mmxext_row_head, mmxext_row, mmxext_row_tail, mmxext_row_mid) @@ -662,12 +681,14 @@ void mpeg2_idct_copy_mmxext (int16_t * block, uint8_t * dest, int stride) { mmxext_idct (block); block_copy (block, dest, stride); + block_zero (block); } void mpeg2_idct_add_mmxext (int16_t * block, uint8_t * dest, int stride) { mmxext_idct (block); block_add (block, dest, stride); + block_zero (block); } @@ -678,12 +699,14 @@ void mpeg2_idct_copy_mmx (int16_t * block, uint8_t * dest, int stride) { mmx_idct (block); block_copy (block, dest, stride); + block_zero (block); } void mpeg2_idct_add_mmx (int16_t * block, uint8_t * dest, int stride) { mmx_idct (block); block_add (block, dest, stride); + block_zero (block); } void mpeg2_idct_mmx_init (void) |