diff options
Diffstat (limited to 'gst/deinterlace2/tvtime')
| -rw-r--r-- | gst/deinterlace2/tvtime/greedy.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/gst/deinterlace2/tvtime/greedy.c b/gst/deinterlace2/tvtime/greedy.c index 66b8799d..e1a9b1cf 100644 --- a/gst/deinterlace2/tvtime/greedy.c +++ b/gst/deinterlace2/tvtime/greedy.c @@ -111,6 +111,107 @@ deinterlace_greedy_packed422_scanline_c (GstDeinterlace2 * object, #ifdef HAVE_CPU_I386 #include "mmx.h" +static void +deinterlace_greedy_packed422_scanline_mmx (GstDeinterlace2 * object, + uint8_t * m0, uint8_t * t1, uint8_t * b1, uint8_t * m2, uint8_t * output, + int width) +{ + mmx_t MaxComb; + + // How badly do we let it weave? 0-255 + MaxComb.ub[0] = GreedyMaxComb; + MaxComb.ub[1] = GreedyMaxComb; + MaxComb.ub[2] = GreedyMaxComb; + MaxComb.ub[3] = GreedyMaxComb; + MaxComb.ub[4] = GreedyMaxComb; + MaxComb.ub[5] = GreedyMaxComb; + MaxComb.ub[6] = GreedyMaxComb; + MaxComb.ub[7] = GreedyMaxComb; + + // L2 == m0 + // L1 == t1 + // L3 == b1 + // LP2 == m2 + + for (; width > 7; width -= 8) { + movq_m2r (*t1, mm1); // L1 + movq_m2r (*m0, mm2); // L2 + movq_m2r (*b1, mm3); // L3 + movq_m2r (*m2, mm0); // LP2 + + // average L1 and L3 leave result in mm4 + movq_r2r (mm1, mm4); // L1 + movq_r2r (mm3, mm5); // L3 + psrlw_i2r (1, mm4); // L1/2 + psrlw_i2r (1, mm5); // L3/2 + paddusb_r2r (mm5, mm4); // (L1 + L3) / 2 + + // get abs value of possible L2 comb + movq_r2r (mm2, mm7); // L2 + psubusb_r2r (mm4, mm7); // L2 - avg + movq_r2r (mm4, mm5); // avg + psubusb_r2r (mm2, mm5); // avg - L2 + por_r2r (mm7, mm5); // abs(avg-L2) + + + // get abs value of possible LP2 comb + movq_r2r (mm0, mm7); // LP2 + psubusb_r2r (mm4, mm7); // LP2 - avg + psubusb_r2r (mm0, mm4); // avg - LP2 + por_r2r (mm7, mm4); // abs(avg-LP2) + + // use L2 or LP2 depending upon which makes smaller comb + psubusb_r2r (mm5, mm4); // see if it goes to zero + psubusb_r2r (mm5, mm5); // 0 + pcmpeqb_r2r (mm5, mm4); // if (mm4=0) then FF else 0 + pcmpeqb_r2r (mm4, mm5); // opposite of mm4 + + // if Comb(LP2) <= Comb(L2) then mm4=ff, mm5=0 else mm4=0, mm5 = 55 + pand_r2r (mm2, mm5); // use L2 if mm5 == ff, else 0 + pand_r2r (mm0, mm4); // use LP2 if mm4 = ff, else 0 + por_r2r (mm5, mm4); // may the best win + + // Now lets clip our chosen value to be not outside of the range + // of the high/low range L1-L3 by more than abs(L1-L3) + // This allows some comb but limits the damages and also allows more + // detail than a boring oversmoothed clip. + + movq_r2r (mm1, mm2); // copy L1 + psubusb_r2r (mm3, mm2); // - L3, with saturation + paddusb_r2r (mm3, mm2); // now = Max(L1,L3) + + pcmpeqb_r2r (mm7, mm7); // all ffffffff + psubusb_r2r (mm1, mm7); // - L1 + paddusb_r2r (mm7, mm3); // add, may sat at fff.. + psubusb_r2r (mm7, mm3); // now = Min(L1,L3) + + // allow the value to be above the high or below the low by amt of MaxComb + paddusb_m2r (MaxComb, mm2); // increase max by diff + psubusb_m2r (MaxComb, mm3); // lower min by diff + + psubusb_r2r (mm3, mm4); // best - Min + paddusb_r2r (mm3, mm4); // now = Max(best,Min(L1,L3) + + pcmpeqb_r2r (mm7, mm7); // all ffffffff + psubusb_r2r (mm4, mm7); // - Max(best,Min(best,L3) + paddusb_r2r (mm7, mm2); // add may sat at FFF.. + psubusb_r2r (mm7, mm2); // now = Min( Max(best, Min(L1,L3), L2 )=L2 clipped + + movq_r2m (mm2, *output); // move in our clipped best + + // Advance to the next set of pixels. + output += 8; + m0 += 8; + t1 += 8; + b1 += 8; + m2 += 8; + } + emms (); + if (width > 0) + deinterlace_greedy_packed422_scanline_c (object, m0, t1, b1, m2, output, + width); +} + #include "sse.h" static void @@ -214,6 +315,9 @@ deinterlace_greedy_packed422_scanline (GstDeinterlace2 * object, if (object->cpu_feature_flags & OIL_IMPL_FLAG_MMXEXT) { deinterlace_greedy_packed422_scanline_mmxext (object, data->m0, data->t1, data->b1, data->m2, output, 2 * object->frame_width); + } else if (object->cpu_feature_flags & OIL_IMPL_FLAG_MMX) { + deinterlace_greedy_packed422_scanline_mmx (object, data->m0, data->t1, + data->b1, data->m2, output, 2 * object->frame_width); } else { deinterlace_greedy_packed422_scanline_c (object, data->m0, data->t1, data->b1, data->m2, output, 2 * object->frame_width); |