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// -*- c++ -*-
#ifdef IS_SSE2
//sse2 code deleted for now
#else
// Version for non-SSE2
#ifdef SKIP_SEARCH
"movq %%mm6, %%mm0\n\t" // just use the results of our wierd bob
#else
// JA 9/Dec/2002
// failed experiment
// but leave in placeholder for me to play about
#ifdef DONT_USE_STRANGE_BOB
// Use the best weave if diffs less than 10 as that
// means the image is still or moving cleanly
// if there is motion we will clip which will catch anything
"psubusb "MANGLE(FOURS)", %%mm7\n\t" // sets bits to zero if weave diff < 4
"pxor %%mm0, %%mm0\n\t"
"pcmpeqb %%mm0, %%mm7\n\t" // all ff where weave better, else 00
"pcmpeqb %%mm7, %%mm0\n\t" // all ff where bob better, else 00
"pand %%mm6, %%mm0\n\t" // use bob for these pixel values
"pand %%mm5, %%mm7\n\t" // use weave for these
"por %%mm7, %%mm0\n\t" // combine both
#else
// Use the better of bob or weave
// pminub mm4, TENS // the most we care about
V_PMINUB ("%%mm4", MANGLE(TENS), "%%mm0") // the most we care about
"psubusb %%mm4, %%mm7\n\t" // foregive that much from weave est?
"psubusb "MANGLE(FOURS)", %%mm7\n\t" // bias it a bit toward weave
"pxor %%mm0, %%mm0\n\t"
"pcmpeqb %%mm0, %%mm7\n\t" // all ff where weave better, else 00
"pcmpeqb %%mm7, %%mm0\n\t" // all ff where bob better, else 00
"pand %%mm6, %%mm0\n\t" // use bob for these pixel values
"pand %%mm5, %%mm7\n\t" // use weave for these
"por %%mm7, %%mm0\n\t" // combine both
#endif
// pminub mm0, Max_Vals // but clip to catch the stray error
// V_PMINUB ("%%mm0", MANGLE(Max_Vals), "%%mm1") // but clip to catch the stray error
// pmaxub mm0, Min_Vals
// V_PMAXUB ("%%mm0", MANGLE(Min_Vals))
#endif
MOVX" "_pDest", %%"XAX"\n\t"
#ifdef USE_VERTICAL_FILTER
"movq %%mm0, %%mm1\n\t"
// pavgb mm0, qword ptr["XBX"]
V_PAVGB ("%%mm0", "(%%"XBX")", "%%mm2", MANGLE(ShiftMask))
// movntq qword ptr["XAX"+"XDX"], mm0
V_MOVNTQ ("(%"XAX", %%"XDX")", "%%mm0")
// pavgb mm1, qword ptr["XBX"+"XCX"]
V_PAVGB ("%%mm1", "(%%"XBX", %%"XCX")", "%%mm2", MANGLE(ShiftMask))
"addq "_dst_pitchw", %%"XBX
// movntq qword ptr["XAX"+"XDX"], mm1
V_MOVNTQ ("(%%"XAX", %%"XDX")", "%%mm1")
#else
// movntq qword ptr["XAX"+"XDX"], mm0
V_MOVNTQ ("(%%"XAX", %%"XDX")", "%%mm0")
#endif
LEAX" 8(%%"XDX"), %%"XDX"\n\t" // bump offset pointer
CMPX" "_Last8", %%"XDX"\n\t" // done with line?
"jb 1b\n\t" // y
#endif
MOVX" "_oldbx", %%"XBX"\n\t"
: /* no outputs */
: "m"(pBob),
"m"(src_pitch2),
"m"(pDest),
"m"(dst_pitchw),
"m"(Last8),
"m"(pSrc),
"m"(pSrcP),
"m"(pBobP),
"m"(oldbx)
: XAX, XCX, XDX, XSI, XDI,
#ifdef ARCH_X86
"st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)",
#endif
#ifdef ARCH_X86_64
/* the following clobber list causes trouble for gcc 2.95. it shouldn't be
* an issue as, afaik, mmx registers map to the existing fp registers.
*/
"mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7",
#endif
"memory", "cc"
);
// adjust for next line
pSrc += src_pitch2;
pSrcP += src_pitch2;
pDest += dst_pitch2;
pBob += src_pitch2;
pBobP += src_pitch2;
}
goto end;
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