V_PMINUB ("%%mm4", "%%mm2", "%%mm7")
// Blend weave pixel with bob pixel, depending on motion val in mm0
- "psubusb %[MotionThreshold], %%mm0\n\t" // test Threshold, clear chroma change >>>??
+ "psubusb %[MotionThreshold], %%mm0\n\t" // test Threshold, clear chroma change
"pmullw %[MotionSense], %%mm0\n\t" // mul by user factor, keep low 16 bits
"movq %[QW256], %%mm7\n\t"
#ifdef IS_MMXEXT
"memory", "cc");
}
+static void
+FUNCT_NAME_UYVY (GstDeinterlaceMethodGreedyH *self, const guint8 * L1, const guint8 * L2, const guint8 * L3, const guint8 * L2P, guint8 * Dest, gint width)
+{
+
+ // in tight loop some vars are accessed faster in local storage
+ gint64 YMask = 0xff00ff00ff00ff00ull; // to keep only luma
+ gint64 UVMask = 0x00ff00ff00ff00ffull; // to keep only chroma
+ gint64 ShiftMask = 0xfefefefefefefefeull; // to avoid shifting chroma to luma
+ gint64 QW256 = 0x0100010001000100ull; // 4 256's
+ gint64 MaxComb;
+ gint64 MotionThreshold;
+ gint64 MotionSense;
+ gint64 i;
+ glong LoopCtr;
+ glong oldbx;
+
+ gint64 QW256B;
+ gint64 LastAvg = 0; //interp value from left qword
+
+ // FIXME: Use C implementation if the width is not a multiple of 4
+ // Do something more optimal later
+ if (width % 4 != 0)
+ C_FUNCT_UYVY (self, L1, L2, L3, L2P, Dest, width);
+
+ // Set up our two parms that are actually evaluated for each pixel
+ i = self->max_comb;
+ MaxComb =
+ i << 56 | i << 48 | i << 40 | i << 32 | i << 24 | i << 16 | i << 8 | i;
+
+ i = self->motion_threshold; // scale to range of 0-257
+ MotionThreshold = i << 48 | i << 32 | i << 16 | i | UVMask;
+
+ i = self->motion_sense; // scale to range of 0-257
+ MotionSense = i << 48 | i << 32 | i << 16 | i;
+
+ i = 0xffffffff - 256;
+ QW256B = i << 48 | i << 32 | i << 16 | i; // save a couple instr on PMINSW instruct.
+
+ LoopCtr = width / 8 - 1; // there are LineLength / 4 qwords per line but do 1 less, adj at end of loop
+
+ // For ease of reading, the comments below assume that we're operating on an odd
+ // field (i.e., that InfoIsOdd is true). Assume the obvious for even lines..
+ __asm__ __volatile__ (
+ // save ebx (-fPIC)
+ MOVX " %%" XBX ", %[oldbx]\n\t"
+ MOVX " %[L1], %%" XAX "\n\t"
+ LEAX " 8(%%" XAX "), %%" XBX "\n\t" // next qword needed by DJR
+ MOVX " %[L3], %%" XCX "\n\t"
+ SUBX " %%" XAX ", %%" XCX "\n\t" // carry L3 addr as an offset
+ MOVX " %[L2P], %%" XDX "\n\t"
+ MOVX " %[L2], %%" XSI "\n\t"
+ MOVX " %[Dest], %%" XDI "\n\t" // DL1 if Odd or DL2 if Even
+
+ ".align 8\n\t"
+ "1:\n\t"
+ "movq (%%" XSI "), %%mm0\n\t" // L2 - the newest weave pixel value
+ "movq (%%" XAX "), %%mm1\n\t" // L1 - the top pixel
+ "movq (%%" XDX "), %%mm2\n\t" // L2P - the prev weave pixel
+ "movq (%%" XAX ", %%" XCX "), %%mm3\n\t" // L3, next odd row
+ "movq %%mm1, %%mm6\n\t" // L1 - get simple single pixel interp
+
+ // pavgb mm6, mm3 // use macro below
+ V_PAVGB ("%%mm6", "%%mm3", "%%mm4", "%[ShiftMask]")
+
+ // DJR - Diagonal Jaggie Reduction
+ // In the event that we are going to use an average (Bob) pixel we do not want a jagged
+ // stair step effect. To combat this we avg in the 2 horizontally adjacen pixels into the
+ // interpolated Bob mix. This will do horizontal smoothing for only the Bob'd pixels.
+
+ "movq %[LastAvg], %%mm4\n\t" // the bob value from prev qword in row
+ "movq %%mm6, %[LastAvg]\n\t" // save for next pass
+ "psrlq $48, %%mm4\n\t" // right justify 1 pixel
+ "movq %%mm6, %%mm7\n\t" // copy of simple bob pixel
+ "psllq $16, %%mm7\n\t" // left justify 3 pixels
+ "por %%mm7, %%mm4\n\t" // and combine
+ "movq (%%" XBX "), %%mm5\n\t" // next horiz qword from L1
+ // pavgb mm5, qword ptr[ebx+ecx] // next horiz qword from L3, use macro below
+
+ V_PAVGB ("%%mm5", "(%%" XBX ",%%" XCX ")", "%%mm7", "%[ShiftMask]")
+ "psllq $48, %%mm5\n\t" // left just 1 pixel
+ "movq %%mm6, %%mm7\n\t" // another copy of simple bob pixel
+ "psrlq $16, %%mm7\n\t" // right just 3 pixels
+ "por %%mm7, %%mm5\n\t" // combine
+ // pavgb mm4, mm5 // avg of forward and prev by 1 pixel, use macro
+ V_PAVGB ("%%mm4", "%%mm5", "%%mm5", "%[ShiftMask]") // mm5 gets modified if MMX
+ // pavgb mm6, mm4 // avg of center and surround interp vals, use macro
+ V_PAVGB ("%%mm6", "%%mm4", "%%mm7", "%[ShiftMask]")
+
+ // Don't do any more averaging than needed for mmx. It hurts performance and causes rounding errors.
+#ifndef IS_MMX
+ // pavgb mm4, mm6 // 1/4 center, 3/4 adjacent
+ V_PAVGB ("%%mm4", "%%mm6", "%%mm7", "%[ShiftMask]")
+ // pavgb mm6, mm4 // 3/8 center, 5/8 adjacent
+ V_PAVGB ("%%mm6", "%%mm4", "%%mm7", "%[ShiftMask]")
+#endif
+
+ // get abs value of possible L2 comb
+ "movq %%mm6, %%mm4\n\t" // work copy of interp val
+ "movq %%mm2, %%mm7\n\t" // L2
+ "psubusb %%mm4, %%mm7\n\t" // L2 - avg
+ "movq %%mm4, %%mm5\n\t" // avg
+ "psubusb %%mm2, %%mm5\n\t" // avg - L2
+ "por %%mm7, %%mm5\n\t" // abs(avg-L2)
+
+ // get abs value of possible L2P comb
+ "movq %%mm0, %%mm7\n\t" // L2P
+ "psubusb %%mm4, %%mm7\n\t" // L2P - avg
+ "psubusb %%mm0, %%mm4\n\t" // avg - L2P
+ "por %%mm7, %%mm4\n\t" // abs(avg-L2P)
+
+ // use L2 or L2P depending upon which makes smaller comb
+ "psubusb %%mm5, %%mm4\n\t" // see if it goes to zero
+ "psubusb %%mm5, %%mm5\n\t" // 0
+ "pcmpeqb %%mm5, %%mm4\n\t" // if (mm4=0) then FF else 0
+ "pcmpeqb %%mm4, %%mm5\n\t" // opposite of mm4
+
+ // if Comb(L2P) <= Comb(L2) then mm4=ff, mm5=0 else mm4=0, mm5 = 55
+ "pand %%mm2, %%mm5\n\t" // use L2 if mm5 == ff, else 0
+ "pand %%mm0, %%mm4\n\t" // use L2P if mm4 = ff, else 0
+ "por %%mm5, %%mm4\n\t" // may the best win
+
+ // Inventory: at this point we have the following values:
+ // mm0 = L2P (or L2)
+ // mm1 = L1
+ // mm2 = L2 (or L2P)
+ // mm3 = L3
+ // mm4 = the best of L2,L2P weave pixel, base upon comb
+ // mm6 = the avg interpolated value, if we need to use it
+ // Let's measure movement, as how much the weave pixel has changed
+
+ "movq %%mm2, %%mm7\n\t"
+ "psubusb %%mm0, %%mm2\n\t"
+ "psubusb %%mm7, %%mm0\n\t"
+ "por %%mm2, %%mm0\n\t" // abs value of change, used later
+
+ // Now lets clip our chosen value to be not outside of the range
+ // of the high/low range L1-L3 by more than MaxComb.
+ // This allows some comb but limits the damages and also allows more
+ // detail than a boring oversmoothed clip.
+
+ "movq %%mm1, %%mm2\n\t" // copy L1
+ // pmaxub mm2, mm3 // use macro
+ V_PMAXUB ("%%mm2", "%%mm3") // now = Max(L1,L3)
+ "movq %%mm1, %%mm5\n\t" // copy L1
+ // pminub mm5, mm3 // now = Min(L1,L3), use macro
+ V_PMINUB ("%%mm5", "%%mm3", "%%mm7")
+
+ // allow the value to be above the high or below the low by amt of MaxComb
+ "psubusb %[MaxComb], %%mm5\n\t" // lower min by diff
+ "paddusb %[MaxComb], %%mm2\n\t" // increase max by diff
+ // pmaxub mm4, mm5 // now = Max(best,Min(L1,L3) use macro
+ V_PMAXUB ("%%mm4", "%%mm5")
+ // pminub mm4, mm2 // now = Min( Max(best, Min(L1,L3), L2 )=L2 clipped
+ V_PMINUB ("%%mm4", "%%mm2", "%%mm7")
+
+ // Blend weave pixel with bob pixel, depending on motion val in mm0
+ "psubusb %[MotionThreshold], %%mm0\n\t" // test Threshold, clear chroma change
+ "psrlw $8, %%mm0\n\t" // div by 256 to get weighted avg
+ "pmullw %[MotionSense], %%mm0\n\t" // mul by user factor, keep low 16 bits
+ "movq %[QW256], %%mm7\n\t"
+#ifdef IS_MMXEXT
+ "pminsw %%mm7, %%mm0\n\t" // max = 256
+#else
+ "paddusw %[QW256B], %%mm0\n\t" // add, may sat at fff..
+ "psubusw %[QW256B], %%mm0\n\t" // now = Min(L1,256)
+#endif
+ "psubusw %%mm0, %%mm7\n\t" // so the 2 sum to 256, weighted avg
+ "movq %%mm4, %%mm2\n\t" // save weave chroma info before trashing
+ "pand %[YMask], %%mm4\n\t" // keep only luma from calc'd value
+ "psrlw $8, %%mm4\n\t" // div by 256 to get weighted avg
+ "pmullw %%mm7, %%mm4\n\t" // use more weave for less motion
+ "pand %[YMask], %%mm6\n\t" // keep only luma from calc'd value
+ "psrlw $8, %%mm6\n\t" // div by 256 to get weighted avg
+ "pmullw %%mm0, %%mm6\n\t" // use more bob for large motion
+ "paddusw %%mm6, %%mm4\n\t" // combine
+ "pand %[YMask], %%mm4\n\t" // keep only luma from calc'd value
+ // chroma comes from weave pixel
+ "pand %[UVMask], %%mm2\n\t" // keep chroma
+ "por %%mm4, %%mm2\n\t" // and combine
+ V_MOVNTQ ("(%%" XDI ")", "%%mm2") // move in our clipped best, use macro
+ // bump ptrs and loop
+ LEAX " 8(%%" XAX "), %%" XAX "\n\t"
+ LEAX " 8(%%" XBX "), %%" XBX "\n\t"
+ LEAX " 8(%%" XDX "), %%" XDX "\n\t"
+ LEAX " 8(%%" XDI "), %%" XDI "\n\t"
+ LEAX " 8(%%" XSI "), %%" XSI "\n\t"
+ DECX " %[LoopCtr]\n\t"
+
+ "jg 1b\n\t" // loop if not to last line
+ // note P-III default assumes backward branches taken
+ "jl 1f\n\t" // done
+ MOVX " %%" XAX ", %%" XBX "\n\t" // sharpness lookahead 1 byte only, be wrong on 1
+ "jmp 1b\n\t"
+
+ "1:\n\t"
+ MOVX " %[oldbx], %%" XBX "\n\t"
+ "emms\n\t": /* no outputs */
+
+ :[LastAvg] "m" (LastAvg),
+ [L1] "m" (L1),
+ [L3] "m" (L3),
+ [L2P] "m" (L2P),
+ [L2] "m" (L2),
+ [Dest] "m" (Dest),
+ [ShiftMask] "m" (ShiftMask),
+ [MaxComb] "m" (MaxComb),
+ [MotionThreshold] "m" (MotionThreshold),
+ [MotionSense] "m" (MotionSense),
+ [QW256B] "m" (QW256B),
+ [YMask] "m" (YMask),
+ [UVMask] "m" (UVMask),
+ [LoopCtr] "m" (LoopCtr),
+ [QW256] "m" (QW256),
+ [oldbx] "m" (oldbx)
+ : XAX, XCX, XDX, XSI, XDI,
+ "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)",
+#ifdef __MMX__
+ "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7",
+#endif
+ "memory", "cc");
+}
+
projects / platform / upstream / gst-plugins-good.git / commitdiff