diff options
| -rw-r--r-- | pixman/pixman-mmx.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/pixman/pixman-mmx.c b/pixman/pixman-mmx.c index 280e9c4..8edd59a 100644 --- a/pixman/pixman-mmx.c +++ b/pixman/pixman-mmx.c @@ -3541,11 +3541,14 @@ mmx_composite_over_reverse_n_8888 (pixman_implementation_t *imp, const __m64 mm_wt = _mm_set_pi16 (wt, wt, wt, wt); \ const __m64 mm_wb = _mm_set_pi16 (wb, wb, wb, wb); \ const __m64 mm_BSHIFT = _mm_set_pi16 (BSHIFT, BSHIFT, BSHIFT, BSHIFT); \ - const __m64 mm_addc7 = _mm_set_pi16 (0, 1, 0, 1); \ - const __m64 mm_xorc7 = _mm_set_pi16 (0, BMSK, 0, BMSK); \ - const __m64 mm_ux = _mm_set_pi16 (unit_x, unit_x, unit_x, unit_x); \ + const __m64 mm_addc = _mm_set_pi16 (0, 1, 0, 1); \ const __m64 mm_zero = _mm_setzero_si64 (); \ - __m64 mm_x = _mm_set_pi16 (vx, vx, vx, vx) + const __m64 mm_ux = BILINEAR_INTERPOLATION_BITS < 8 ? \ + _mm_set_pi16 (unit_x, -unit_x, unit_x, -unit_x) : \ + _mm_set_pi16 (unit_x, unit_x, unit_x, unit_x); \ + __m64 mm_x = BILINEAR_INTERPOLATION_BITS < 8 ? \ + _mm_set_pi16 (vx, -(vx + 1), vx, -(vx + 1)) : \ + _mm_set_pi16 (vx, vx, vx, vx) #define BILINEAR_INTERPOLATE_ONE_PIXEL(pix) \ do { \ @@ -3563,9 +3566,8 @@ do { \ if (BILINEAR_INTERPOLATION_BITS < 8) \ { \ /* calculate horizontal weights */ \ - __m64 mm_wh = _mm_add_pi16 (mm_addc7, _mm_xor_si64 (mm_xorc7, \ - _mm_srli_pi16 (mm_x, \ - 16 - BILINEAR_INTERPOLATION_BITS))); \ + __m64 mm_wh = _mm_add_pi16 (mm_addc, _mm_srli_pi16 (mm_x, \ + 16 - BILINEAR_INTERPOLATION_BITS)); \ /* horizontal interpolation */ \ __m64 p = _mm_unpacklo_pi16 (lo, hi); \ __m64 q = _mm_unpackhi_pi16 (lo, hi); \ |