[SCM] libav/experimental: suppressed nasm dependancy - rewrote forward DCT and motion estimation code
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 15:29:58 UTC 2013
The following commit has been merged in the experimental branch:
commit 694ec0612b0a9d74d98a657b2425666c43996179
Author: Fabrice Bellard <fabrice at bellard.org>
Date: Wed Aug 15 22:25:32 2001 +0000
suppressed nasm dependancy - rewrote forward DCT and motion estimation code
Originally committed as revision 104 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/libavcodec/i386/fdct_mmx.c b/libavcodec/i386/fdct_mmx.c
new file mode 100644
index 0000000..614759f
--- /dev/null
+++ b/libavcodec/i386/fdct_mmx.c
@@ -0,0 +1,291 @@
+/*
+ * MMX optimized forward DCT
+ * The gcc porting is Copyright (c) 2001 Gerard Lantau.
+ *
+ * from fdctam32.c - AP922 MMX(3D-Now) forward-DCT
+ *
+ * Intel Application Note AP-922 - fast, precise implementation of DCT
+ * http://developer.intel.com/vtune/cbts/appnotes.htm
+ */
+#include "../common.h"
+#include "mmx.h"
+
+#define ATTR_ALIGN(align) __attribute__ ((__aligned__ (align)))
+
+//////////////////////////////////////////////////////////////////////
+//
+// constants for the forward DCT
+// -----------------------------
+//
+// Be sure to check that your compiler is aligning all constants to QWORD
+// (8-byte) memory boundaries! Otherwise the unaligned memory access will
+// severely stall MMX execution.
+//
+//////////////////////////////////////////////////////////////////////
+
+#define BITS_FRW_ACC 3 //; 2 or 3 for accuracy
+#define SHIFT_FRW_COL BITS_FRW_ACC
+#define SHIFT_FRW_ROW (BITS_FRW_ACC + 17)
+//#define RND_FRW_ROW (262144 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_ROW-1)
+#define RND_FRW_ROW (1 << (SHIFT_FRW_ROW-1))
+//#define RND_FRW_COL (2 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_COL-1)
+#define RND_FRW_COL (1 << (SHIFT_FRW_COL-1))
+
+//concatenated table, for forward DCT transformation
+const int16_t fdct_tg_all_16[] ATTR_ALIGN(8) = {
+ 13036, 13036, 13036, 13036, // tg * (2<<16) + 0.5
+ 27146, 27146, 27146, 27146, // tg * (2<<16) + 0.5
+ -21746, -21746, -21746, -21746, // tg * (2<<16) + 0.5
+};
+const int16_t cos_4_16[4] = {
+ -19195, -19195, -19195, -19195, //cos * (2<<16) + 0.5
+};
+
+const int16_t ocos_4_16[4] = {
+ 23170, 23170, 23170, 23170, //cos * (2<<15) + 0.5
+};
+
+const long long fdct_one_corr ATTR_ALIGN(8) = 0x0001000100010001LL;
+const long fdct_r_row[2] ATTR_ALIGN(8) = {RND_FRW_ROW, RND_FRW_ROW };
+
+const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { // forward_dct coeff table
+ //row0
+ 16384, 16384, 21407, -8867, // w09 w01 w08 w00
+ 16384, 16384, 8867, -21407, // w13 w05 w12 w04
+ 16384, -16384, 8867, 21407, // w11 w03 w10 w02
+ -16384, 16384, -21407, -8867, // w15 w07 w14 w06
+ 22725, 12873, 19266, -22725, // w22 w20 w18 w16
+ 19266, 4520, -4520, -12873, // w23 w21 w19 w17
+ 12873, 4520, 4520, 19266, // w30 w28 w26 w24
+ -22725, 19266, -12873, -22725, // w31 w29 w27 w25
+
+ //row1
+ 22725, 22725, 29692, -12299, // w09 w01 w08 w00
+ 22725, 22725, 12299, -29692, // w13 w05 w12 w04
+ 22725, -22725, 12299, 29692, // w11 w03 w10 w02
+ -22725, 22725, -29692, -12299, // w15 w07 w14 w06
+ 31521, 17855, 26722, -31521, // w22 w20 w18 w16
+ 26722, 6270, -6270, -17855, // w23 w21 w19 w17
+ 17855, 6270, 6270, 26722, // w30 w28 w26 w24
+ -31521, 26722, -17855, -31521, // w31 w29 w27 w25
+
+ //row2
+ 21407, 21407, 27969, -11585, // w09 w01 w08 w00
+ 21407, 21407, 11585, -27969, // w13 w05 w12 w04
+ 21407, -21407, 11585, 27969, // w11 w03 w10 w02
+ -21407, 21407, -27969, -11585, // w15 w07 w14 w06
+ 29692, 16819, 25172, -29692, // w22 w20 w18 w16
+ 25172, 5906, -5906, -16819, // w23 w21 w19 w17
+ 16819, 5906, 5906, 25172, // w30 w28 w26 w24
+ -29692, 25172, -16819, -29692, // w31 w29 w27 w25
+
+ //row3
+ 19266, 19266, 25172, -10426, // w09 w01 w08 w00
+ 19266, 19266, 10426, -25172, // w13 w05 w12 w04
+ 19266, -19266, 10426, 25172, // w11 w03 w10 w02
+ -19266, 19266, -25172, -10426, // w15 w07 w14 w06,
+ 26722, 15137, 22654, -26722, // w22 w20 w18 w16
+ 22654, 5315, -5315, -15137, // w23 w21 w19 w17
+ 15137, 5315, 5315, 22654, // w30 w28 w26 w24
+ -26722, 22654, -15137, -26722, // w31 w29 w27 w25,
+
+ //row4
+ 16384, 16384, 21407, -8867, // w09 w01 w08 w00
+ 16384, 16384, 8867, -21407, // w13 w05 w12 w04
+ 16384, -16384, 8867, 21407, // w11 w03 w10 w02
+ -16384, 16384, -21407, -8867, // w15 w07 w14 w06
+ 22725, 12873, 19266, -22725, // w22 w20 w18 w16
+ 19266, 4520, -4520, -12873, // w23 w21 w19 w17
+ 12873, 4520, 4520, 19266, // w30 w28 w26 w24
+ -22725, 19266, -12873, -22725, // w31 w29 w27 w25
+
+ //row5
+ 19266, 19266, 25172, -10426, // w09 w01 w08 w00
+ 19266, 19266, 10426, -25172, // w13 w05 w12 w04
+ 19266, -19266, 10426, 25172, // w11 w03 w10 w02
+ -19266, 19266, -25172, -10426, // w15 w07 w14 w06
+ 26722, 15137, 22654, -26722, // w22 w20 w18 w16
+ 22654, 5315, -5315, -15137, // w23 w21 w19 w17
+ 15137, 5315, 5315, 22654, // w30 w28 w26 w24
+ -26722, 22654, -15137, -26722, // w31 w29 w27 w25
+
+ //row6
+ 21407, 21407, 27969, -11585, // w09 w01 w08 w00
+ 21407, 21407, 11585, -27969, // w13 w05 w12 w04
+ 21407, -21407, 11585, 27969, // w11 w03 w10 w02
+ -21407, 21407, -27969, -11585, // w15 w07 w14 w06,
+ 29692, 16819, 25172, -29692, // w22 w20 w18 w16
+ 25172, 5906, -5906, -16819, // w23 w21 w19 w17
+ 16819, 5906, 5906, 25172, // w30 w28 w26 w24
+ -29692, 25172, -16819, -29692, // w31 w29 w27 w25,
+
+ //row7
+ 22725, 22725, 29692, -12299, // w09 w01 w08 w00
+ 22725, 22725, 12299, -29692, // w13 w05 w12 w04
+ 22725, -22725, 12299, 29692, // w11 w03 w10 w02
+ -22725, 22725, -29692, -12299, // w15 w07 w14 w06,
+ 31521, 17855, 26722, -31521, // w22 w20 w18 w16
+ 26722, 6270, -6270, -17855, // w23 w21 w19 w17
+ 17855, 6270, 6270, 26722, // w30 w28 w26 w24
+ -31521, 26722, -17855, -31521 // w31 w29 w27 w25
+};
+
+
+static inline void fdct_col(const int16_t *in, int16_t *out, int offset)
+{
+ movq_m2r(*(in + offset + 1 * 8), mm0);
+ movq_m2r(*(in + offset + 6 * 8), mm1);
+ movq_r2r(mm0, mm2);
+ movq_m2r(*(in + offset + 2 * 8), mm3);
+ paddsw_r2r(mm1, mm0);
+ movq_m2r(*(in + offset + 5 * 8), mm4);
+ psllw_i2r(SHIFT_FRW_COL, mm0);
+ movq_m2r(*(in + offset + 0 * 8), mm5);
+ paddsw_r2r(mm3, mm4);
+ paddsw_m2r(*(in + offset + 7 * 8), mm5);
+ psllw_i2r(SHIFT_FRW_COL, mm4);
+ movq_r2r(mm0, mm6);
+ psubsw_r2r(mm1, mm2);
+ movq_m2r(*(fdct_tg_all_16 + 4), mm1);
+ psubsw_r2r(mm4, mm0);
+ movq_m2r(*(in + offset + 3 * 8), mm7);
+ pmulhw_r2r(mm0, mm1);
+ paddsw_m2r(*(in + offset + 4 * 8), mm7);
+ psllw_i2r(SHIFT_FRW_COL, mm5);
+ paddsw_r2r(mm4, mm6);
+ psllw_i2r(SHIFT_FRW_COL, mm7);
+ movq_r2r(mm5, mm4);
+ psubsw_r2r(mm7, mm5);
+ paddsw_r2r(mm5, mm1);
+ paddsw_r2r(mm7, mm4);
+ por_m2r(fdct_one_corr, mm1);
+ psllw_i2r(SHIFT_FRW_COL + 1, mm2);
+ pmulhw_m2r(*(fdct_tg_all_16 + 4), mm5);
+ movq_r2r(mm4, mm7);
+ psubsw_m2r(*(in + offset + 5 * 8), mm3);
+ psubsw_r2r(mm6, mm4);
+ movq_r2m(mm1, *(out + offset + 2 * 8));
+ paddsw_r2r(mm6, mm7);
+ movq_m2r(*(in + offset + 3 * 8), mm1);
+ psllw_i2r(SHIFT_FRW_COL + 1, mm3);
+ psubsw_m2r(*(in + offset + 4 * 8), mm1);
+ movq_r2r(mm2, mm6);
+ movq_r2m(mm4, *(out + offset + 4 * 8));
+ paddsw_r2r(mm3, mm2);
+ pmulhw_m2r(*ocos_4_16, mm2);
+ psubsw_r2r(mm3, mm6);
+ pmulhw_m2r(*ocos_4_16, mm6);
+ psubsw_r2r(mm0, mm5);
+ por_m2r(fdct_one_corr, mm5);
+ psllw_i2r(SHIFT_FRW_COL, mm1);
+ por_m2r(fdct_one_corr, mm2);
+ movq_r2r(mm1, mm4);
+ movq_m2r(*(in + offset + 0 * 8), mm3);
+ paddsw_r2r(mm6, mm1);
+ psubsw_m2r(*(in + offset + 7 * 8), mm3);
+ psubsw_r2r(mm6, mm4);
+ movq_m2r(*(fdct_tg_all_16 + 0), mm0);
+ psllw_i2r(SHIFT_FRW_COL, mm3);
+ movq_m2r(*(fdct_tg_all_16 + 8), mm6);
+ pmulhw_r2r(mm1, mm0);
+ movq_r2m(mm7, *(out + offset + 0 * 8));
+ pmulhw_r2r(mm4, mm6);
+ movq_r2m(mm5, *(out + offset + 6 * 8));
+ movq_r2r(mm3, mm7);
+ movq_m2r(*(fdct_tg_all_16 + 8), mm5);
+ psubsw_r2r(mm2, mm7);
+ paddsw_r2r(mm2, mm3);
+ pmulhw_r2r(mm7, mm5);
+ paddsw_r2r(mm3, mm0);
+ paddsw_r2r(mm4, mm6);
+ pmulhw_m2r(*(fdct_tg_all_16 + 0), mm3);
+ por_m2r(fdct_one_corr, mm0);
+ paddsw_r2r(mm7, mm5);
+ psubsw_r2r(mm6, mm7);
+ movq_r2m(mm0, *(out + offset + 1 * 8));
+ paddsw_r2r(mm4, mm5);
+ movq_r2m(mm7, *(out + offset + 3 * 8));
+ psubsw_r2r(mm1, mm3);
+ movq_r2m(mm5, *(out + offset + 5 * 8));
+ movq_r2m(mm3, *(out + offset + 7 * 8));
+}
+
+static inline void fdct_row(const int16_t *in, int16_t *out, const int16_t *table)
+{
+ movd_m2r(*(in + 6), mm5);
+ punpcklwd_m2r(*(in + 4), mm5);
+ movq_r2r(mm5, mm2);
+ psrlq_i2r(0x20, mm5);
+ movq_m2r(*(in + 0), mm0);
+ punpcklwd_r2r(mm2, mm5);
+ movq_r2r(mm0, mm1);
+ paddsw_r2r(mm5, mm0);
+ psubsw_r2r(mm5, mm1);
+ movq_r2r(mm0, mm2);
+ punpcklwd_r2r(mm1, mm0);
+ punpckhwd_r2r(mm1, mm2);
+ movq_r2r(mm2, mm1);
+ movq_r2r(mm0, mm2);
+ movq_m2r(*(table + 0), mm3);
+ punpcklwd_r2r(mm1, mm0);
+ movq_r2r(mm0, mm5);
+ punpckldq_r2r(mm0, mm0);
+ movq_m2r(*(table + 4), mm4);
+ punpckhwd_r2r(mm1, mm2);
+ pmaddwd_r2r(mm0, mm3);
+ movq_r2r(mm2, mm6);
+ movq_m2r(*(table + 16), mm1);
+ punpckldq_r2r(mm2, mm2);
+ pmaddwd_r2r(mm2, mm4);
+ punpckhdq_r2r(mm5, mm5);
+ pmaddwd_m2r(*(table + 8), mm0);
+ punpckhdq_r2r(mm6, mm6);
+ movq_m2r(*(table + 20), mm7);
+ pmaddwd_r2r(mm5, mm1);
+ paddd_m2r(*fdct_r_row, mm3);
+ pmaddwd_r2r(mm6, mm7);
+ pmaddwd_m2r(*(table + 12), mm2);
+ paddd_r2r(mm4, mm3);
+ pmaddwd_m2r(*(table + 24), mm5);
+ pmaddwd_m2r(*(table + 28), mm6);
+ paddd_r2r(mm7, mm1);
+ paddd_m2r(*fdct_r_row, mm0);
+ psrad_i2r(SHIFT_FRW_ROW, mm3);
+ paddd_m2r(*fdct_r_row, mm1);
+ paddd_r2r(mm2, mm0);
+ paddd_m2r(*fdct_r_row, mm5);
+ psrad_i2r(SHIFT_FRW_ROW, mm1);
+ paddd_r2r(mm6, mm5);
+ psrad_i2r(SHIFT_FRW_ROW, mm0);
+ psrad_i2r(SHIFT_FRW_ROW, mm5);
+ packssdw_r2r(mm0, mm3);
+ packssdw_r2r(mm5, mm1);
+ movq_r2r(mm3, mm6);
+ punpcklwd_r2r(mm1, mm3);
+ punpckhwd_r2r(mm1, mm6);
+ movq_r2m(mm3, *(out + 0));
+ movq_r2m(mm6, *(out + 4));
+}
+
+void fdct_mmx(int16_t *block)
+{
+ /* XXX: not thread safe */
+ static int16_t block_tmp[64] ATTR_ALIGN(8);
+ int16_t *block1, *out;
+ const int16_t *table;
+ int i;
+
+ block1 = block_tmp;
+ fdct_col(block, block1, 0);
+ fdct_col(block, block1, 4);
+
+ block1 = block_tmp;
+ table = tab_frw_01234567;
+ out = block;
+ for(i=8;i>0;i--) {
+ fdct_row(block1, out, table);
+ block1 += 8;
+ table += 32;
+ out += 8;
+ }
+}
diff --git a/libavcodec/i386/fdct_mmx.s b/libavcodec/i386/fdct_mmx.s
deleted file mode 100644
index 75c67bf..0000000
--- a/libavcodec/i386/fdct_mmx.s
+++ /dev/null
@@ -1,507 +0,0 @@
-; //////////////////////////////////////////////////////////////////////////////
-; //
-; // fdctam32.c - AP922 MMX(3D-Now) forward-DCT
-; // ----------
-; // Intel Application Note AP-922 - fast, precise implementation of DCT
-; // http://developer.intel.com/vtune/cbts/appnotes.htm
-; // ----------
-; //
-; // This routine can use a 3D-Now/MMX enhancement to increase the
-; // accuracy of the fdct_col_4 macro. The dct_col function uses 3D-Now's
-; // PMHULHRW instead of MMX's PMHULHW(and POR). The substitution improves
-; // accuracy very slightly with performance penalty. If the target CPU
-; // does not support 3D-Now, then this function cannot be executed.
-; //
-; // For a fast, precise MMX implementation of inverse-DCT
-; // visit http://www.elecard.com/peter
-; //
-; // v1.0 07/22/2000 (initial release)
-; //
-; // liaor at iname.com http://members.tripod.com/~liaor
-; //////////////////////////////////////////////////////////////////////////////
-
-;;;
-;;; A.Stevens Jul 2000: ported to nasm syntax and disentangled from
-;;; from Win**** compiler specific stuff.
-;;; All the real work was done above though.
-;;; See above for how to optimise quality on 3DNow! CPU's
-
- ;;
- ;; Macros for code-readability...
- ;;
-%define INP eax ; pointer to (short *blk)
-%define OUT ecx ; pointer to output (temporary store space qwTemp[])
-%define TABLE ebx ; pointer to tab_frw_01234567[]
-%define TABLEF ebx ; pointer to tg_all_16
-%define round_frw_row edx
-
-
-%define x0 INP + 0*16
-%define x1 INP + 1*16
-%define x2 INP + 2*16
-%define x3 INP + 3*16
-%define x4 INP + 4*16
-%define x5 INP + 5*16
-%define x6 INP + 6*16
-%define x7 INP + 7*16
-%define y0 OUT + 0*16
-%define y1 OUT + 1*16
-%define y2 OUT + 2*16
-%define y3 OUT + 3*16
-%define y4 OUT + 4*16
-%define y5 OUT + 5*16
-%define y6 OUT + 6*16
-%define y7 OUT + 7*16
-
- ;;
- ;; Constants for DCT
- ;;
-%define BITS_FRW_ACC 3 ; 2 or 3 for accuracy
-%define SHIFT_FRW_COL BITS_FRW_ACC
-%define SHIFT_FRW_ROW (BITS_FRW_ACC + 17)
-%define RND_FRW_ROW (1 << (SHIFT_FRW_ROW-1))
-%define RND_FRW_COL (1 << (SHIFT_FRW_COL-1))
-
-extern fdct_one_corr
-extern fdct_r_row ; Defined in C for convenience
- ;;
- ;; Concatenated table of forward dct transformation coeffs.
- ;;
-extern fdct_tg_all_16 ; Defined in C for convenience
- ;; Offsets into table..
-
-%define tg_1_16 (TABLEF + 0)
-%define tg_2_16 (TABLEF + 8)
-%define tg_3_16 (TABLEF + 16)
-%define cos_4_16 (TABLEF + 24)
-%define ocos_4_16 (TABLEF + 32)
-
- ;;
- ;; Concatenated table of forward dct coefficients
- ;;
-extern tab_frw_01234567 ; Defined in C for convenience
-
- ;; Offsets into table..
-SECTION .text
-
-global fdct_mmx
-
-;;;
-;;; void fdct_mmx( short *blk )
-;;;
-
-
-
-; ////////////////////////////////////////////////////////////////////////
-; //
-; // The high-level pseudocode for the fdct_am32() routine :
-; //
-; // fdct_am32()
-; // {
-; // forward_dct_col03(); // dct_column transform on cols 0-3
-; // forward_dct_col47(); // dct_column transform on cols 4-7
-; // for ( j = 0; j < 8; j=j+1 )
-; // forward_dct_row1(j); // dct_row transform on row #j
-; // }
-; //
-;
-
-align 32
-fdct_mmx:
- push ebp ; save stack pointer
- mov ebp, esp ; link
-
- push ebx
- push ecx
- push edx
- push edi
-
- mov INP, [ebp+8]; ; input data is row 0 of blk[]
- ;// transform the left half of the matrix (4 columns)
-
- lea TABLEF, [fdct_tg_all_16];
- mov OUT, INP;
-
-; lea round_frw_col, [r_frw_col]
- ; for ( i = 0; i < 2; i = i + 1)
- ; the for-loop is executed twice. We are better off unrolling the
- ; loop to avoid branch misprediction.
-.mmx32_fdct_col03:
- movq mm0, [x1] ; 0 ; x1
- ;;
-
- movq mm1, [x6] ; 1 ; x6
- movq mm2, mm0 ; 2 ; x1
-
- movq mm3, [x2] ; 3 ; x2
- paddsw mm0, mm1 ; t1 = x[1] + x[6]
-
- movq mm4, [x5] ; 4 ; x5
- psllw mm0, SHIFT_FRW_COL ; t1
-
- movq mm5, [x0] ; 5 ; x0
- paddsw mm4, mm3 ; t2 = x[2] + x[5]
-
- paddsw mm5, [x7] ; t0 = x[0] + x[7]
- psllw mm4, SHIFT_FRW_COL ; t2
-
- movq mm6, mm0 ; 6 ; t1
- psubsw mm2, mm1 ; 1 ; t6 = x[1] - x[6]
-
- movq mm1, [tg_2_16] ; 1 ; tg_2_16
- psubsw mm0, mm4 ; tm12 = t1 - t2
-
- movq mm7, [x3] ; 7 ; x3
- pmulhw mm1, mm0 ; tm12*tg_2_16
-
- paddsw mm7, [x4] ; t3 = x[3] + x[4]
- psllw mm5, SHIFT_FRW_COL ; t0
-
- paddsw mm6, mm4 ; 4 ; tp12 = t1 + t2
- psllw mm7, SHIFT_FRW_COL ; t3
-
- movq mm4, mm5 ; 4 ; t0
- psubsw mm5, mm7 ; tm03 = t0 - t3
-
- paddsw mm1, mm5 ; y2 = tm03 + tm12*tg_2_16
- paddsw mm4, mm7 ; 7 ; tp03 = t0 + t3
-
- por mm1, [fdct_one_corr] ; correction y2 +0.5
- psllw mm2, SHIFT_FRW_COL+1 ; t6
-
- pmulhw mm5, [tg_2_16] ; tm03*tg_2_16
- movq mm7, mm4 ; 7 ; tp03
-
- psubsw mm3, [x5] ; t5 = x[2] - x[5]
- psubsw mm4, mm6 ; y4 = tp03 - tp12
-
- movq [y2], mm1 ; 1 ; save y2
- paddsw mm7, mm6 ; 6 ; y0 = tp03 + tp12
-
- movq mm1, [x3] ; 1 ; x3
- psllw mm3, SHIFT_FRW_COL+1 ; t5
-
- psubsw mm1, [x4] ; t4 = x[3] - x[4]
- movq mm6, mm2 ; 6 ; t6
-
- movq [y4], mm4 ; 4 ; save y4
- paddsw mm2, mm3 ; t6 + t5
-
- pmulhw mm2, [ocos_4_16] ; tp65 = (t6 + t5)*cos_4_16
- psubsw mm6, mm3 ; 3 ; t6 - t5
-
- pmulhw mm6, [ocos_4_16] ; tm65 = (t6 - t5)*cos_4_16
- psubsw mm5, mm0 ; 0 ; y6 = tm03*tg_2_16 - tm12
-
- por mm5, [fdct_one_corr] ; correction y6 +0.5
- psllw mm1, SHIFT_FRW_COL ; t4
-
- por mm2, [fdct_one_corr] ; correction tp65 +0.5
- movq mm4, mm1 ; 4 ; t4
-
- movq mm3, [x0] ; 3 ; x0
- paddsw mm1, mm6 ; tp465 = t4 + tm65
-
- psubsw mm3, [x7] ; t7 = x[0] - x[7]
- psubsw mm4, mm6 ; 6 ; tm465 = t4 - tm65
-
- movq mm0, [tg_1_16] ; 0 ; tg_1_16
- psllw mm3, SHIFT_FRW_COL ; t7
-
- movq mm6, [tg_3_16] ; 6 ; tg_3_16
- pmulhw mm0, mm1 ; tp465*tg_1_16
-
- movq [y0], mm7 ; 7 ; save y0
- pmulhw mm6, mm4 ; tm465*tg_3_16
-
- movq [y6], mm5 ; 5 ; save y6
- movq mm7, mm3 ; 7 ; t7
-
- movq mm5, [tg_3_16] ; 5 ; tg_3_16
- psubsw mm7, mm2 ; tm765 = t7 - tp65
-
- paddsw mm3, mm2 ; 2 ; tp765 = t7 + tp65
- pmulhw mm5, mm7 ; tm765*tg_3_16
-
- paddsw mm0, mm3 ; y1 = tp765 + tp465*tg_1_16
- paddsw mm6, mm4 ; tm465*tg_3_16
-
- pmulhw mm3, [tg_1_16] ; tp765*tg_1_16
- ;;
-
- por mm0, [fdct_one_corr] ; correction y1 +0.5
- paddsw mm5, mm7 ; tm765*tg_3_16
-
- psubsw mm7, mm6 ; 6 ; y3 = tm765 - tm465*tg_3_16
- add INP, 0x08 ; ; increment pointer
-
- movq [y1], mm0 ; 0 ; save y1
- paddsw mm5, mm4 ; 4 ; y5 = tm765*tg_3_16 + tm465
-
- movq [y3], mm7 ; 7 ; save y3
- psubsw mm3, mm1 ; 1 ; y7 = tp765*tg_1_16 - tp465
-
- movq [y5], mm5 ; 5 ; save y5
-
-
-.mmx32_fdct_col47: ; begin processing last four columns
- movq mm0, [x1] ; 0 ; x1
- ;;
- movq [y7], mm3 ; 3 ; save y7 (columns 0-4)
- ;;
-
- movq mm1, [x6] ; 1 ; x6
- movq mm2, mm0 ; 2 ; x1
-
- movq mm3, [x2] ; 3 ; x2
- paddsw mm0, mm1 ; t1 = x[1] + x[6]
-
- movq mm4, [x5] ; 4 ; x5
- psllw mm0, SHIFT_FRW_COL ; t1
-
- movq mm5, [x0] ; 5 ; x0
- paddsw mm4, mm3 ; t2 = x[2] + x[5]
-
- paddsw mm5, [x7] ; t0 = x[0] + x[7]
- psllw mm4, SHIFT_FRW_COL ; t2
-
- movq mm6, mm0 ; 6 ; t1
- psubsw mm2, mm1 ; 1 ; t6 = x[1] - x[6]
-
- movq mm1, [tg_2_16] ; 1 ; tg_2_16
- psubsw mm0, mm4 ; tm12 = t1 - t2
-
- movq mm7, [x3] ; 7 ; x3
- pmulhw mm1, mm0 ; tm12*tg_2_16
-
- paddsw mm7, [x4] ; t3 = x[3] + x[4]
- psllw mm5, SHIFT_FRW_COL ; t0
-
- paddsw mm6, mm4 ; 4 ; tp12 = t1 + t2
- psllw mm7, SHIFT_FRW_COL ; t3
-
- movq mm4, mm5 ; 4 ; t0
- psubsw mm5, mm7 ; tm03 = t0 - t3
-
- paddsw mm1, mm5 ; y2 = tm03 + tm12*tg_2_16
- paddsw mm4, mm7 ; 7 ; tp03 = t0 + t3
-
- por mm1, [fdct_one_corr] ; correction y2 +0.5
- psllw mm2, SHIFT_FRW_COL+1 ; t6
-
- pmulhw mm5, [tg_2_16] ; tm03*tg_2_16
- movq mm7, mm4 ; 7 ; tp03
-
- psubsw mm3, [x5] ; t5 = x[2] - x[5]
- psubsw mm4, mm6 ; y4 = tp03 - tp12
-
- movq [y2+8], mm1 ; 1 ; save y2
- paddsw mm7, mm6 ; 6 ; y0 = tp03 + tp12
-
- movq mm1, [x3] ; 1 ; x3
- psllw mm3, SHIFT_FRW_COL+1 ; t5
-
- psubsw mm1, [x4] ; t4 = x[3] - x[4]
- movq mm6, mm2 ; 6 ; t6
-
- movq [y4+8], mm4 ; 4 ; save y4
- paddsw mm2, mm3 ; t6 + t5
-
- pmulhw mm2, [ocos_4_16] ; tp65 = (t6 + t5)*cos_4_16
- psubsw mm6, mm3 ; 3 ; t6 - t5
-
- pmulhw mm6, [ocos_4_16] ; tm65 = (t6 - t5)*cos_4_16
- psubsw mm5, mm0 ; 0 ; y6 = tm03*tg_2_16 - tm12
-
- por mm5, [fdct_one_corr] ; correction y6 +0.5
- psllw mm1, SHIFT_FRW_COL ; t4
-
- por mm2, [fdct_one_corr] ; correction tp65 +0.5
- movq mm4, mm1 ; 4 ; t4
-
- movq mm3, [x0] ; 3 ; x0
- paddsw mm1, mm6 ; tp465 = t4 + tm65
-
- psubsw mm3, [x7] ; t7 = x[0] - x[7]
- psubsw mm4, mm6 ; 6 ; tm465 = t4 - tm65
-
- movq mm0, [tg_1_16] ; 0 ; tg_1_16
- psllw mm3, SHIFT_FRW_COL ; t7
-
- movq mm6, [tg_3_16] ; 6 ; tg_3_16
- pmulhw mm0, mm1 ; tp465*tg_1_16
-
- movq [y0+8], mm7 ; 7 ; save y0
- pmulhw mm6, mm4 ; tm465*tg_3_16
-
- movq [y6+8], mm5 ; 5 ; save y6
- movq mm7, mm3 ; 7 ; t7
-
- movq mm5, [tg_3_16] ; 5 ; tg_3_16
- psubsw mm7, mm2 ; tm765 = t7 - tp65
-
- paddsw mm3, mm2 ; 2 ; tp765 = t7 + tp65
- pmulhw mm5, mm7 ; tm765*tg_3_16
-
- paddsw mm0, mm3 ; y1 = tp765 + tp465*tg_1_16
- paddsw mm6, mm4 ; tm465*tg_3_16
-
- pmulhw mm3, [tg_1_16] ; tp765*tg_1_16
- ;;
-
- por mm0, [fdct_one_corr] ; correction y1 +0.5
- paddsw mm5, mm7 ; tm765*tg_3_16
-
- psubsw mm7, mm6 ; 6 ; y3 = tm765 - tm465*tg_3_16
- ;;
-
- movq [y1+8], mm0 ; 0 ; save y1
- paddsw mm5, mm4 ; 4 ; y5 = tm765*tg_3_16 + tm465
-
- movq [y3+8], mm7 ; 7 ; save y3
- psubsw mm3, mm1 ; 1 ; y7 = tp765*tg_1_16 - tp465
-
- movq [y5+8], mm5 ; 5 ; save y5
-
- movq [y7+8], mm3 ; 3 ; save y7
-
-; emms;
-; } ; end of forward_dct_col07()
- ; done with dct_row transform
-
-
- ; fdct_mmx32_cols() --
- ; the following subroutine repeats the row-transform operation,
- ; except with different shift&round constants. This version
- ; does NOT transpose the output again. Thus the final output
- ; is transposed with respect to the source.
- ;
- ; The output is stored into blk[], which destroys the original
- ; input data.
- mov INP, [ebp+8]; ;; row 0
- mov edi, 0x08; ;x = 8
-
- lea TABLE, [tab_frw_01234567]; ; row 0
- mov OUT, INP;
-
- lea round_frw_row, [fdct_r_row];
- ; for ( x = 8; x > 0; --x ) ; transform one row per iteration
-
-; ---------- loop begin
- .lp_mmx_fdct_row1:
- movd mm5, [INP+12]; ; mm5 = 7 6
-
- punpcklwd mm5, [INP+8] ; mm5 = 5 7 4 6
-
- movq mm2, mm5; ; mm2 = 5 7 4 6
- psrlq mm5, 32; ; mm5 = _ _ 5 7
-
- movq mm0, [INP]; ; mm0 = 3 2 1 0
- punpcklwd mm5, mm2;; mm5 = 4 5 6 7
-
- movq mm1, mm0; ; mm1 = 3 2 1 0
- paddsw mm0, mm5; ; mm0 = [3+4, 2+5, 1+6, 0+7] (xt3, xt2, xt1, xt0)
-
- psubsw mm1, mm5; ; mm1 = [3-4, 2-5, 1-6, 0-7] (xt7, xt6, xt5, xt4)
- movq mm2, mm0; ; mm2 = [ xt3 xt2 xt1 xt0 ]
-
- ;movq [ xt3xt2xt1xt0 ], mm0;
- ;movq [ xt7xt6xt5xt4 ], mm1;
-
- punpcklwd mm0, mm1;; mm0 = [ xt5 xt1 xt4 xt0 ]
-
- punpckhwd mm2, mm1;; mm2 = [ xt7 xt3 xt6 xt2 ]
- movq mm1, mm2; ; mm1
-
- ;; shuffle bytes around
-
-; movq mm0, [INP] ; 0 ; x3 x2 x1 x0
-
-; movq mm1, [INP+8] ; 1 ; x7 x6 x5 x4
- movq mm2, mm0 ; 2 ; x3 x2 x1 x0
-
- movq mm3, [TABLE] ; 3 ; w06 w04 w02 w00
- punpcklwd mm0, mm1 ; x5 x1 x4 x0
-
- movq mm5, mm0 ; 5 ; x5 x1 x4 x0
- punpckldq mm0, mm0 ; x4 x0 x4 x0 [ xt2 xt0 xt2 xt0 ]
-
- movq mm4, [TABLE+8] ; 4 ; w07 w05 w03 w01
- punpckhwd mm2, mm1 ; 1 ; x7 x3 x6 x2
-
- pmaddwd mm3, mm0 ; x4*w06+x0*w04 x4*w02+x0*w00
- movq mm6, mm2 ; 6 ; x7 x3 x6 x2
-
- movq mm1, [TABLE+32] ; 1 ; w22 w20 w18 w16
- punpckldq mm2, mm2 ; x6 x2 x6 x2 [ xt3 xt1 xt3 xt1 ]
-
- pmaddwd mm4, mm2 ; x6*w07+x2*w05 x6*w03+x2*w01
- punpckhdq mm5, mm5 ; x5 x1 x5 x1 [ xt6 xt4 xt6 xt4 ]
-
- pmaddwd mm0, [TABLE+16] ; x4*w14+x0*w12 x4*w10+x0*w08
- punpckhdq mm6, mm6 ; x7 x3 x7 x3 [ xt7 xt5 xt7 xt5 ]
-
- movq mm7, [TABLE+40] ; 7 ; w23 w21 w19 w17
- pmaddwd mm1, mm5 ; x5*w22+x1*w20 x5*w18+x1*w16
-;mm3 = a1, a0 (y2,y0)
-;mm1 = b1, b0 (y3,y1)
-;mm0 = a3,a2 (y6,y4)
-;mm5 = b3,b2 (y7,y5)
-
- paddd mm3, [round_frw_row] ; +rounder (y2,y0)
- pmaddwd mm7, mm6 ; x7*w23+x3*w21 x7*w19+x3*w17
-
- pmaddwd mm2, [TABLE+24] ; x6*w15+x2*w13 x6*w11+x2*w09
- paddd mm3, mm4 ; 4 ; a1=sum(even1) a0=sum(even0) ; now ( y2, y0)
-
- pmaddwd mm5, [TABLE+48] ; x5*w30+x1*w28 x5*w26+x1*w24
- ;;
-
- pmaddwd mm6, [TABLE+56] ; x7*w31+x3*w29 x7*w27+x3*w25
- paddd mm1, mm7 ; 7 ; b1=sum(odd1) b0=sum(odd0) ; now ( y3, y1)
-
- paddd mm0, [round_frw_row] ; +rounder (y6,y4)
- psrad mm3, SHIFT_FRW_ROW ; (y2, y0)
-
- paddd mm1, [round_frw_row] ; +rounder (y3,y1)
- paddd mm0, mm2 ; 2 ; a3=sum(even3) a2=sum(even2) ; now (y6, y4)
-
- paddd mm5, [round_frw_row] ; +rounder (y7,y5)
- psrad mm1, SHIFT_FRW_ROW ; y1=a1+b1 y0=a0+b0
-
- paddd mm5, mm6 ; 6 ; b3=sum(odd3) b2=sum(odd2) ; now ( y7, y5)
- psrad mm0, SHIFT_FRW_ROW ;y3=a3+b3 y2=a2+b2
-
- add OUT, 16; ; increment row-output address by 1 row
- psrad mm5, SHIFT_FRW_ROW ; y4=a3-b3 y5=a2-b2
-
- add INP, 16; ; increment row-address by 1 row
- packssdw mm3, mm0 ; 0 ; y6 y4 y2 y0
-
- packssdw mm1, mm5 ; 3 ; y7 y5 y3 y1
- movq mm6, mm3; ; mm0 = y6 y4 y2 y0
-
- punpcklwd mm3, mm1; ; y3 y2 y1 y0
- sub edi, 0x01; ; i = i - 1
-
- punpckhwd mm6, mm1; ; y7 y6 y5 y4
- add TABLE,64; ; increment to next table
-
- movq [OUT-16], mm3 ; 1 ; save y3 y2 y1 y0
-
- movq [OUT-8], mm6 ; 7 ; save y7 y6 y5 y4
-
- cmp edi, 0x00;
- jg near .lp_mmx_fdct_row1; ; begin fdct processing on next row
- ;;
- ;; Tidy up and return
- ;;
- pop edi
- pop edx
- pop ecx
- pop ebx
-
- pop ebp ; restore stack pointer
- emms
- ret
-
\ No newline at end of file
diff --git a/libavcodec/i386/motion_est_mmx.c b/libavcodec/i386/motion_est_mmx.c
new file mode 100644
index 0000000..35b16b7
--- /dev/null
+++ b/libavcodec/i386/motion_est_mmx.c
@@ -0,0 +1,244 @@
+/*
+ * MMX optimized motion estimation
+ * Copyright (c) 2001 Gerard Lantau.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#include "../dsputil.h"
+#include "mmx.h"
+
+static const unsigned long long int mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001;
+static const unsigned long long int mm_wtwo __attribute__ ((aligned(8))) = 0x0002000200020002;
+
+/* mm7 is accumulator, mm6 is zero */
+static inline void sad_add(const UINT8 *p1, const UINT8 *p2)
+{
+ movq_m2r(*p1, mm0);
+ movq_m2r(*p2, mm1);
+ movq_r2r(mm0, mm2);
+ psubusb_r2r(mm1, mm0);
+ psubusb_r2r(mm2, mm1);
+ por_r2r(mm1, mm0); /* mm0 is absolute value */
+
+ movq_r2r(mm0, mm1);
+ punpcklbw_r2r(mm6, mm0);
+ punpckhbw_r2r(mm6, mm1);
+ paddusw_r2r(mm0, mm7);
+ paddusw_r2r(mm1, mm7);
+}
+
+/* convert mm7 to value */
+static inline int sad_end(void)
+{
+ int res;
+
+ movq_r2r(mm7, mm0);
+ psrlq_i2r(32, mm7);
+ paddusw_r2r(mm0, mm7);
+
+ movq_r2r(mm7, mm0);
+ psrlq_i2r(16, mm7);
+ paddusw_r2r(mm0, mm7);
+ __asm __volatile ("movd %%mm7, %0" : "=a" (res));
+ return res & 0xffff;
+}
+
+int pix_abs16x16_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h)
+{
+ const UINT8 *p1, *p2;
+
+ h >>= 1;
+ p1 = blk1;
+ p2 = blk2;
+ pxor_r2r(mm7, mm7); /* mm7 is accumulator */
+ pxor_r2r(mm6, mm6); /* mm7 is zero constant */
+ do {
+ sad_add(p1, p2);
+ sad_add(p1 + 8, p2 + 8);
+ p1 += lx;
+ p2 += lx;
+ sad_add(p1, p2);
+ sad_add(p1 + 8, p2 + 8);
+ p1 += lx;
+ p2 += lx;
+ } while (--h);
+ return sad_end();
+}
+
+/* please test it ! */
+static inline void sad_add_sse(const UINT8 *p1, const UINT8 *p2)
+{
+ movq_m2r(*(p1 + 0), mm0);
+ movq_m2r(*(p1 + 8), mm1);
+ psadbw_m2r(*(p2 + 0), mm0);
+ psadbw_m2r(*(p2 + 8), mm1);
+ paddusw_r2r(mm0, mm7);
+ paddusw_r2r(mm1, mm7);
+}
+
+int pix_abs16x16_sse(UINT8 *blk1, UINT8 *blk2, int lx, int h)
+{
+ const UINT8 *p1, *p2;
+
+ h >>= 1;
+ p1 = blk1;
+ p2 = blk2;
+ pxor_r2r(mm7, mm7); /* mm7 is accumulator */
+ do {
+ sad_add_sse(p1, p2);
+ p1 += lx;
+ p2 += lx;
+ sad_add_sse(p1, p2);
+ p1 += lx;
+ p2 += lx;
+ } while (--h);
+ return sad_end();
+}
+
+#define DUMP(reg) { mmx_t tmp; movq_r2m(reg, tmp); printf(#reg "=%016Lx\n", tmp.uq); }
+
+/* mm7 is accumulator, mm6 is zero */
+static inline void sad_add_x2(const UINT8 *p1, const UINT8 *p2, const UINT8 *p3)
+{
+ movq_m2r(*(p2 + 0), mm0);
+ movq_m2r(*(p3 + 0), mm1);
+ movq_r2r(mm0, mm2);
+ movq_r2r(mm1, mm3);
+ punpcklbw_r2r(mm6, mm0); /* extract 4 bytes low */
+ punpcklbw_r2r(mm6, mm1);
+ punpckhbw_r2r(mm6, mm2); /* high */
+ punpckhbw_r2r(mm6, mm3);
+ paddusw_r2r(mm1, mm0);
+ paddusw_r2r(mm3, mm2);
+ movq_m2r(*(p1 + 0), mm1); /* mm1 : other value */
+ paddusw_r2r(mm5, mm0); /* + 1 */
+ paddusw_r2r(mm5, mm2); /* + 1 */
+ psrlw_i2r(1, mm0);
+ psrlw_i2r(1, mm2);
+ packuswb_r2r(mm2, mm0); /* average is in mm0 */
+
+ movq_r2r(mm1, mm2);
+ psubusb_r2r(mm0, mm1);
+ psubusb_r2r(mm2, mm0);
+ por_r2r(mm1, mm0); /* mm0 is absolute value */
+
+ movq_r2r(mm0, mm1);
+ punpcklbw_r2r(mm6, mm0);
+ punpckhbw_r2r(mm6, mm1);
+ paddusw_r2r(mm0, mm7);
+ paddusw_r2r(mm1, mm7);
+}
+
+int pix_abs16x16_x2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h)
+{
+ const UINT8 *p1, *p2;
+
+ p1 = blk1;
+ p2 = blk2;
+ pxor_r2r(mm7, mm7); /* mm7 is accumulator */
+ pxor_r2r(mm6, mm6); /* mm7 is zero constant */
+ movq_m2r(mm_wone, mm5); /* one constant */
+ do {
+ sad_add_x2(p1, p2, p2 + 1);
+ sad_add_x2(p1 + 8, p2 + 8, p2 + 9);
+ p1 += lx;
+ p2 += lx;
+ } while (--h);
+ return sad_end();
+}
+
+int pix_abs16x16_y2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h)
+{
+ const UINT8 *p1, *p2;
+
+ p1 = blk1;
+ p2 = blk2;
+ pxor_r2r(mm7, mm7); /* mm7 is accumulator */
+ pxor_r2r(mm6, mm6); /* mm7 is zero constant */
+ movq_m2r(mm_wone, mm5); /* one constant */
+ do {
+ sad_add_x2(p1, p2, p2 + lx);
+ sad_add_x2(p1 + 8, p2 + 8, p2 + 8 + lx);
+ p1 += lx;
+ p2 += lx;
+ } while (--h);
+ return sad_end();
+}
+
+/* mm7 is accumulator, mm6 is zero */
+static inline void sad_add_xy2(const UINT8 *p1, const UINT8 *p2, const UINT8 *p3)
+{
+ movq_m2r(*(p2 + 0), mm0);
+ movq_m2r(*(p3 + 0), mm1);
+ movq_r2r(mm0, mm2);
+ movq_r2r(mm1, mm3);
+ punpcklbw_r2r(mm6, mm0); /* extract 4 bytes low */
+ punpcklbw_r2r(mm6, mm1);
+ punpckhbw_r2r(mm6, mm2); /* high */
+ punpckhbw_r2r(mm6, mm3);
+ paddusw_r2r(mm1, mm0);
+ paddusw_r2r(mm3, mm2);
+
+ movq_m2r(*(p2 + 1), mm1);
+ movq_m2r(*(p3 + 1), mm3);
+ movq_r2r(mm1, mm4);
+ punpcklbw_r2r(mm6, mm1); /* low */
+ punpckhbw_r2r(mm6, mm4); /* high */
+ paddusw_r2r(mm1, mm0);
+ paddusw_r2r(mm4, mm2);
+ movq_r2r(mm3, mm4);
+ punpcklbw_r2r(mm6, mm3); /* low */
+ punpckhbw_r2r(mm6, mm4); /* high */
+ paddusw_r2r(mm3, mm0);
+ paddusw_r2r(mm4, mm2);
+
+ movq_m2r(*(p1 + 0), mm1); /* mm1 : other value */
+ paddusw_r2r(mm5, mm0); /* + 2 */
+ paddusw_r2r(mm5, mm2); /* + 2 */
+ psrlw_i2r(2, mm0);
+ psrlw_i2r(2, mm2);
+ packuswb_r2r(mm2, mm0); /* average is in mm0 */
+
+ movq_r2r(mm1, mm2);
+ psubusb_r2r(mm0, mm1);
+ psubusb_r2r(mm2, mm0);
+ por_r2r(mm1, mm0); /* mm0 is absolute value */
+
+ movq_r2r(mm0, mm1);
+ punpcklbw_r2r(mm6, mm0);
+ punpckhbw_r2r(mm6, mm1);
+ paddusw_r2r(mm0, mm7);
+ paddusw_r2r(mm1, mm7);
+}
+
+int pix_abs16x16_xy2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h)
+{
+ const UINT8 *p1, *p2, *p3;
+
+ p1 = blk1;
+ p2 = blk2;
+ p3 = blk2 + lx;
+ pxor_r2r(mm7, mm7); /* mm7 is accumulator */
+ pxor_r2r(mm6, mm6); /* mm7 is zero constant */
+ movq_m2r(mm_wtwo, mm5); /* one constant */
+ do {
+ sad_add_xy2(p1, p2, p2 + lx);
+ sad_add_xy2(p1 + 8, p2 + 8, p2 + 8 + lx);
+ p1 += lx;
+ p2 += lx;
+ } while (--h);
+ return sad_end();
+}
diff --git a/libavcodec/i386/sad_mmx.s b/libavcodec/i386/sad_mmx.s
deleted file mode 100644
index b512639..0000000
--- a/libavcodec/i386/sad_mmx.s
+++ /dev/null
@@ -1,798 +0,0 @@
-; MMX/SSE optimized routines for SAD of 16*16 macroblocks
-; Copyright (C) Juan J. Sierralta P. <juanjo at atmlab.utfsm.cl>
-;
-; dist1_* Original Copyright (C) 2000 Chris Atenasio <chris at crud.net>
-; Enhancements and rest Copyright (C) 2000 Andrew Stevens <as at comlab.ox.ac.uk>
-
-;
-; This program is free software; you can redistribute it and/or
-; modify it under the terms of the GNU General Public License
-; as published by the Free Software Foundation; either version 2
-; of the License, or (at your option) any later version.
-;
-; This program is distributed in the hope that it will be useful,
-; but WITHOUT ANY WARRANTY; without even the implied warranty of
-; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-; GNU General Public License for more details.
-;
-; You should have received a copy of the GNU General Public License
-; along with this program; if not, write to the Free Software
-; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-;
-
-global pix_abs16x16_mmx
-
-; int pix_abs16x16_mmx(unsigned char *pix1,unsigned char *pix2, int lx, int h);
-; esi = p1 (init: blk1)
-; edi = p2 (init: blk2)
-; ecx = rowsleft (init: h)
-; edx = lx;
-
-; mm0 = distance accumulators (4 words)
-; mm1 = distance accumulators (4 words)
-; mm2 = temp
-; mm3 = temp
-; mm4 = temp
-; mm5 = temp
-; mm6 = 0
-; mm7 = temp
-
-
-align 32
-pix_abs16x16_mmx:
- push ebp ; save frame pointer
- mov ebp, esp
-
- push ebx ; Saves registers (called saves convention in
- push ecx ; x86 GCC it seems)
- push edx ;
- push esi
- push edi
-
- pxor mm0, mm0 ; zero acculumators
- pxor mm1, mm1
- pxor mm6, mm6
- mov esi, [ebp+8] ; get pix1
- mov edi, [ebp+12] ; get pix2
- mov edx, [ebp+16] ; get lx
- mov ecx, [ebp+20] ; get rowsleft
- jmp .nextrow
-align 32
-
-.nextrow:
- ; First 8 bytes of the row
-
- movq mm4, [edi] ; load first 8 bytes of pix2 row
- movq mm5, [esi] ; load first 8 bytes of pix1 row
- movq mm3, mm4 ; mm4 := abs(mm4-mm5)
- movq mm2,[esi+8] ; load last 8 bytes of pix1 row
- psubusb mm4, mm5
- movq mm7,[edi+8] ; load last 8 bytes of pix2 row
- psubusb mm5, mm3
- por mm4, mm5
-
- ; Last 8 bytes of the row
-
- movq mm3, mm7 ; mm7 := abs(mm7-mm2)
- psubusb mm7, mm2
- psubusb mm2, mm3
- por mm7, mm2
-
- ; Now mm4 and mm7 have 16 absdiffs to add
-
- ; First 8 bytes of the row2
-
-
- add edi, edx
- movq mm2, [edi] ; load first 8 bytes of pix2 row
- add esi, edx
- movq mm5, [esi] ; load first 8 bytes of pix1 row
-
-
-
- movq mm3, mm2 ; mm2 := abs(mm2-mm5)
- psubusb mm2, mm5
- movq mm6,[esi+8] ; load last 8 bytes of pix1 row
- psubusb mm5, mm3
- por mm2, mm5
-
- ; Last 8 bytes of the row2
-
- movq mm5,[edi+8] ; load last 8 bytes of pix2 row
-
-
- movq mm3, mm5 ; mm5 := abs(mm5-mm6)
- psubusb mm5, mm6
- psubusb mm6, mm3
- por mm5, mm6
-
- ; Now mm2, mm4, mm5, mm7 have 32 absdiffs
-
- movq mm3, mm7
-
- pxor mm6, mm6 ; Zero mm6
-
- punpcklbw mm3, mm6 ; Unpack to words and add
- punpckhbw mm7, mm6
- paddusw mm7, mm3
-
- movq mm3, mm5
-
- punpcklbw mm3, mm6 ; Unpack to words and add
- punpckhbw mm5, mm6
- paddusw mm5, mm3
-
- paddusw mm0, mm7 ; Add to the acumulator (mm0)
- paddusw mm1, mm5 ; Add to the acumulator (mm1)
-
- movq mm3, mm4
-
- punpcklbw mm3, mm6 ; Unpack to words and add
- punpckhbw mm4, mm6
- movq mm5, mm2
- paddusw mm4, mm3
-
-
-
- punpcklbw mm5, mm6 ; Unpack to words and add
- punpckhbw mm2, mm6
- paddusw mm2, mm5
-
- ; Loop termination
-
- add esi, edx ; update pointers to next row
- paddusw mm0, mm4 ; Add to the acumulator (mm0)
- add edi, edx
- sub ecx,2
- paddusw mm1, mm2 ; Add to the acumulator (mm1)
- test ecx, ecx ; check rowsleft
- jnz near .nextrow
-
- paddusw mm0, mm1
- movq mm2, mm0 ; Copy mm0 to mm2
- psrlq mm2, 32
- paddusw mm0, mm2 ; Add
- movq mm3, mm0
- psrlq mm3, 16
- paddusw mm0, mm3
- movd eax, mm0 ; Store return value
- and eax, 0xffff
-
- pop edi
- pop esi
- pop edx
- pop ecx
- pop ebx
-
- pop ebp ; restore stack pointer
-
- ;emms ; clear mmx registers
- ret ; return
-
-global pix_abs16x16_sse
-
-; int pix_abs16x16_mmx(unsigned char *pix1,unsigned char *pix2, int lx, int h);
-; esi = p1 (init: blk1)
-; edi = p2 (init: blk2)
-; ecx = rowsleft (init: h)
-; edx = lx;
-
-; mm0 = distance accumulators (4 words)
-; mm1 = distance accumulators (4 words)
-; mm2 = temp
-; mm3 = temp
-; mm4 = temp
-; mm5 = temp
-; mm6 = temp
-; mm7 = temp
-
-
-align 32
-pix_abs16x16_sse:
- push ebp ; save frame pointer
- mov ebp, esp
-
- push ebx ; Saves registers (called saves convention in
- push ecx ; x86 GCC it seems)
- push edx ;
- push esi
- push edi
-
- pxor mm0, mm0 ; zero acculumators
- pxor mm1, mm1
- mov esi, [ebp+8] ; get pix1
- mov edi, [ebp+12] ; get pix2
- mov edx, [ebp+16] ; get lx
- mov ecx, [ebp+20] ; get rowsleft
- jmp .next4row
-align 32
-
-.next4row:
- ; First row
-
- movq mm4, [edi] ; load first 8 bytes of pix2 row
- movq mm5, [edi+8] ; load last 8 bytes of pix2 row
- psadbw mm4, [esi] ; SAD of first 8 bytes
- psadbw mm5, [esi+8] ; SAD of last 8 bytes
- paddw mm0, mm4 ; Add to acumulators
- paddw mm1, mm5
-
- ; Second row
-
- add edi, edx;
- add esi, edx;
-
- movq mm6, [edi] ; load first 8 bytes of pix2 row
- movq mm7, [edi+8] ; load last 8 bytes of pix2 row
- psadbw mm6, [esi] ; SAD of first 8 bytes
- psadbw mm7, [esi+8] ; SAD of last 8 bytes
- paddw mm0, mm6 ; Add to acumulators
- paddw mm1, mm7
-
- ; Third row
-
- add edi, edx;
- add esi, edx;
-
- movq mm4, [edi] ; load first 8 bytes of pix2 row
- movq mm5, [edi+8] ; load last 8 bytes of pix2 row
- psadbw mm4, [esi] ; SAD of first 8 bytes
- psadbw mm5, [esi+8] ; SAD of last 8 bytes
- paddw mm0, mm4 ; Add to acumulators
- paddw mm1, mm5
-
- ; Fourth row
-
- add edi, edx;
- add esi, edx;
-
- movq mm6, [edi] ; load first 8 bytes of pix2 row
- movq mm7, [edi+8] ; load last 8 bytes of pix2 row
- psadbw mm6, [esi] ; SAD of first 8 bytes
- psadbw mm7, [esi+8] ; SAD of last 8 bytes
- paddw mm0, mm6 ; Add to acumulators
- paddw mm1, mm7
-
- ; Loop termination
-
- add esi, edx ; update pointers to next row
- add edi, edx
- sub ecx,4
- test ecx, ecx ; check rowsleft
- jnz near .next4row
-
- paddd mm0, mm1 ; Sum acumulators
- movd eax, mm0 ; Store return value
-
- pop edi
- pop esi
- pop edx
- pop ecx
- pop ebx
-
- pop ebp ; restore stack pointer
-
- ;emms ; clear mmx registers
- ret ; return
-
-global pix_abs16x16_x2_mmx
-
-; int pix_abs16x16_x2_mmx(unsigned char *pix1,unsigned char *pix2, int lx, int h);
-; esi = p1 (init: blk1)
-; edi = p2 (init: blk2)
-; ecx = rowsleft (init: h)
-; edx = lx;
-
-; mm0 = distance accumulators (4 words)
-; mm1 = distance accumulators (4 words)
-; mm2 = temp
-; mm3 = temp
-; mm4 = temp
-; mm5 = temp
-; mm6 = 0
-; mm7 = temp
-
-
-align 32
-pix_abs16x16_x2_mmx:
- push ebp ; save frame pointer
- mov ebp, esp
-
- push ebx ; Saves registers (called saves convention in
- push ecx ; x86 GCC it seems)
- push edx ;
- push esi
- push edi
-
- pxor mm0, mm0 ; zero acculumators
- pxor mm1, mm1
- pxor mm6, mm6
- mov esi, [ebp+8] ; get pix1
- mov edi, [ebp+12] ; get pix2
- mov edx, [ebp+16] ; get lx
- mov ecx, [ebp+20] ; get rowsleft
- jmp .nextrow_x2
-align 32
-
-.nextrow_x2:
- ; First 8 bytes of the row
-
- movq mm4, [edi] ; load first 8 bytes of pix2 row
- movq mm5, [edi+1] ; load bytes 1-8 of pix2 row
-
- movq mm2, mm4 ; copy mm4 on mm2
- movq mm3, mm5 ; copy mm5 on mm3
- punpcklbw mm4, mm6 ; first 4 bytes of [edi] on mm4
- punpcklbw mm5, mm6 ; first 4 bytes of [edi+1] on mm5
- paddusw mm4, mm5 ; mm4 := first 4 bytes interpolated in words
- psrlw mm4, 1
-
- punpckhbw mm2, mm6 ; last 4 bytes of [edi] on mm2
- punpckhbw mm3, mm6 ; last 4 bytes of [edi+1] on mm3
- paddusw mm2, mm3 ; mm2 := last 4 bytes interpolated in words
- psrlw mm2, 1
-
- packuswb mm4, mm2 ; pack 8 bytes interpolated on mm4
- movq mm5,[esi] ; load first 8 bytes of pix1 row
-
- movq mm3, mm4 ; mm4 := abs(mm4-mm5)
- psubusb mm4, mm5
- psubusb mm5, mm3
- por mm4, mm5
-
- ; Last 8 bytes of the row
-
- movq mm7, [edi+8] ; load last 8 bytes of pix2 row
- movq mm5, [edi+9] ; load bytes 10-17 of pix2 row
-
- movq mm2, mm7 ; copy mm7 on mm2
- movq mm3, mm5 ; copy mm5 on mm3
- punpcklbw mm7, mm6 ; first 4 bytes of [edi+8] on mm7
- punpcklbw mm5, mm6 ; first 4 bytes of [edi+9] on mm5
- paddusw mm7, mm5 ; mm1 := first 4 bytes interpolated in words
- psrlw mm7, 1
-
- punpckhbw mm2, mm6 ; last 4 bytes of [edi] on mm2
- punpckhbw mm3, mm6 ; last 4 bytes of [edi+1] on mm3
- paddusw mm2, mm3 ; mm2 := last 4 bytes interpolated in words
- psrlw mm2, 1
-
- packuswb mm7, mm2 ; pack 8 bytes interpolated on mm1
- movq mm5,[esi+8] ; load last 8 bytes of pix1 row
-
- movq mm3, mm7 ; mm7 := abs(mm1-mm5)
- psubusb mm7, mm5
- psubusb mm5, mm3
- por mm7, mm5
-
- ; Now mm4 and mm7 have 16 absdiffs to add
-
- movq mm3, mm4 ; Make copies of these bytes
- movq mm2, mm7
-
- punpcklbw mm4, mm6 ; Unpack to words and add
- punpcklbw mm7, mm6
- paddusw mm4, mm7
- paddusw mm0, mm4 ; Add to the acumulator (mm0)
-
- punpckhbw mm3, mm6 ; Unpack to words and add
- punpckhbw mm2, mm6
- paddusw mm3, mm2
- paddusw mm1, mm3 ; Add to the acumulator (mm1)
-
- ; Loop termination
-
- add esi, edx ; update pointers to next row
- add edi, edx
-
- sub ecx,1
- test ecx, ecx ; check rowsleft
- jnz near .nextrow_x2
-
- paddusw mm0, mm1
-
- movq mm1, mm0 ; Copy mm0 to mm1
- psrlq mm1, 32
- paddusw mm0, mm1 ; Add
- movq mm2, mm0
- psrlq mm2, 16
- paddusw mm0, mm2
- movd eax, mm0 ; Store return value
- and eax, 0xffff
-
- pop edi
- pop esi
- pop edx
- pop ecx
- pop ebx
-
- pop ebp ; restore stack pointer
-
- emms ; clear mmx registers
- ret ; return
-
-global pix_abs16x16_y2_mmx
-
-; int pix_abs16x16_y2_mmx(unsigned char *pix1,unsigned char *pix2, int lx, int h);
-; esi = p1 (init: blk1)
-; edi = p2 (init: blk2)
-; ebx = p2 + lx
-; ecx = rowsleft (init: h)
-; edx = lx;
-
-; mm0 = distance accumulators (4 words)
-; mm1 = distance accumulators (4 words)
-; mm2 = temp
-; mm3 = temp
-; mm4 = temp
-; mm5 = temp
-; mm6 = 0
-; mm7 = temp
-
-
-align 32
-pix_abs16x16_y2_mmx:
- push ebp ; save frame pointer
- mov ebp, esp
-
- push ebx ; Saves registers (called saves convention in
- push ecx ; x86 GCC it seems)
- push edx ;
- push esi
- push edi
-
- pxor mm0, mm0 ; zero acculumators
- pxor mm1, mm1
- pxor mm6, mm6
- mov esi, [ebp+8] ; get pix1
- mov edi, [ebp+12] ; get pix2
- mov edx, [ebp+16] ; get lx
- mov ecx, [ebp+20] ; get rowsleft
- mov ebx, edi
- add ebx, edx
- jmp .nextrow_y2
-align 32
-
-.nextrow_y2:
- ; First 8 bytes of the row
-
- movq mm4, [edi] ; load first 8 bytes of pix2 row
- movq mm5, [ebx] ; load bytes 1-8 of pix2 row
-
- movq mm2, mm4 ; copy mm4 on mm2
- movq mm3, mm5 ; copy mm5 on mm3
- punpcklbw mm4, mm6 ; first 4 bytes of [edi] on mm4
- punpcklbw mm5, mm6 ; first 4 bytes of [ebx] on mm5
- paddusw mm4, mm5 ; mm4 := first 4 bytes interpolated in words
- psrlw mm4, 1
-
- punpckhbw mm2, mm6 ; last 4 bytes of [edi] on mm2
- punpckhbw mm3, mm6 ; last 4 bytes of [edi+1] on mm3
- paddusw mm2, mm3 ; mm2 := last 4 bytes interpolated in words
- psrlw mm2, 1
-
- packuswb mm4, mm2 ; pack 8 bytes interpolated on mm4
- movq mm5,[esi] ; load first 8 bytes of pix1 row
-
- movq mm3, mm4 ; mm4 := abs(mm4-mm5)
- psubusb mm4, mm5
- psubusb mm5, mm3
- por mm4, mm5
-
- ; Last 8 bytes of the row
-
- movq mm7, [edi+8] ; load last 8 bytes of pix2 row
- movq mm5, [ebx+8] ; load bytes 10-17 of pix2 row
-
- movq mm2, mm7 ; copy mm7 on mm2
- movq mm3, mm5 ; copy mm5 on mm3
- punpcklbw mm7, mm6 ; first 4 bytes of [edi+8] on mm7
- punpcklbw mm5, mm6 ; first 4 bytes of [ebx+8] on mm5
- paddusw mm7, mm5 ; mm1 := first 4 bytes interpolated in words
- psrlw mm7, 1
-
- punpckhbw mm2, mm6 ; last 4 bytes of [edi+8] on mm2
- punpckhbw mm3, mm6 ; last 4 bytes of [ebx+8] on mm3
- paddusw mm2, mm3 ; mm2 := last 4 bytes interpolated in words
- psrlw mm2, 1
-
- packuswb mm7, mm2 ; pack 8 bytes interpolated on mm1
- movq mm5,[esi+8] ; load last 8 bytes of pix1 row
-
- movq mm3, mm7 ; mm7 := abs(mm1-mm5)
- psubusb mm7, mm5
- psubusb mm5, mm3
- por mm7, mm5
-
- ; Now mm4 and mm7 have 16 absdiffs to add
-
- movq mm3, mm4 ; Make copies of these bytes
- movq mm2, mm7
-
- punpcklbw mm4, mm6 ; Unpack to words and add
- punpcklbw mm7, mm6
- paddusw mm4, mm7
- paddusw mm0, mm4 ; Add to the acumulator (mm0)
-
- punpckhbw mm3, mm6 ; Unpack to words and add
- punpckhbw mm2, mm6
- paddusw mm3, mm2
- paddusw mm1, mm3 ; Add to the acumulator (mm1)
-
- ; Loop termination
-
- add esi, edx ; update pointers to next row
- add edi, edx
- add ebx, edx
- sub ecx,1
- test ecx, ecx ; check rowsleft
- jnz near .nextrow_y2
-
- paddusw mm0, mm1
-
- movq mm1, mm0 ; Copy mm0 to mm1
- psrlq mm1, 32
- paddusw mm0, mm1 ; Add
- movq mm2, mm0
- psrlq mm2, 16
- paddusw mm0, mm2
- movd eax, mm0 ; Store return value
- and eax, 0xffff
-
- pop edi
- pop esi
- pop edx
- pop ecx
- pop ebx
-
- pop ebp ; restore stack pointer
-
- emms ; clear mmx registers
- ret ; return
-
-global pix_abs16x16_xy2_mmx
-
-; int pix_abs16x16_xy2_mmx(unsigned char *p1,unsigned char *p2,int lx,int h);
-
-; esi = p1 (init: blk1)
-; edi = p2 (init: blk2)
-; ebx = p1+lx
-; ecx = rowsleft (init: h)
-; edx = lx;
-
-; mm0 = distance accumulators (4 words)
-; mm1 = bytes p2
-; mm2 = bytes p1
-; mm3 = bytes p1+lx
-; I'd love to find someplace to stash p1+1 and p1+lx+1's bytes
-; but I don't think thats going to happen in iA32-land...
-; mm4 = temp 4 bytes in words interpolating p1, p1+1
-; mm5 = temp 4 bytes in words from p2
-; mm6 = temp comparison bit mask p1,p2
-; mm7 = temp comparison bit mask p2,p1
-
-
-align 32
-pix_abs16x16_xy2_mmx:
- push ebp ; save stack pointer
- mov ebp, esp ; so that we can do this
-
- push ebx ; Saves registers (called saves convention in
- push ecx ; x86 GCC it seems)
- push edx ;
- push esi
- push edi
-
- pxor mm0, mm0 ; zero acculumators
-
- mov esi, [ebp+12] ; get p1
- mov edi, [ebp+8] ; get p2
- mov edx, [ebp+16] ; get lx
- mov ecx, [ebp+20] ; rowsleft := h
- mov ebx, esi
- add ebx, edx
- jmp .nextrowmm11 ; snap to it
-align 32
-.nextrowmm11:
-
- ;;
- ;; First 8 bytes of row
- ;;
-
- ;; First 4 bytes of 8
-
- movq mm4, [esi] ; mm4 := first 4 bytes p1
- pxor mm7, mm7
- movq mm2, mm4 ; mm2 records all 8 bytes
- punpcklbw mm4, mm7 ; First 4 bytes p1 in Words...
-
- movq mm6, [ebx] ; mm6 := first 4 bytes p1+lx
- movq mm3, mm6 ; mm3 records all 8 bytes
- punpcklbw mm6, mm7
- paddw mm4, mm6
-
-
- movq mm5, [esi+1] ; mm5 := first 4 bytes p1+1
- punpcklbw mm5, mm7 ; First 4 bytes p1 in Words...
- paddw mm4, mm5
- movq mm6, [ebx+1] ; mm6 := first 4 bytes p1+lx+1
- punpcklbw mm6, mm7
- paddw mm4, mm6
-
- psrlw mm4, 2 ; mm4 := First 4 bytes interpolated in words
-
- movq mm5, [edi] ; mm5:=first 4 bytes of p2 in words
- movq mm1, mm5
- punpcklbw mm5, mm7
-
- movq mm7,mm4
- pcmpgtw mm7,mm5 ; mm7 := [i : W0..3,mm4>mm5]
-
- movq mm6,mm4 ; mm6 := [i : W0..3, (mm4-mm5)*(mm4-mm5 > 0)]
- psubw mm6,mm5
- pand mm6, mm7
-
- paddw mm0, mm6 ; Add to accumulator
-
- movq mm6,mm5 ; mm6 := [i : W0..3,mm5>mm4]
- pcmpgtw mm6,mm4
- psubw mm5,mm4 ; mm5 := [i : B0..7, (mm5-mm4)*(mm5-mm4 > 0)]
- pand mm5, mm6
-
- paddw mm0, mm5 ; Add to accumulator
-
- ;; Second 4 bytes of 8
-
- movq mm4, mm2 ; mm4 := Second 4 bytes p1 in words
- pxor mm7, mm7
- punpckhbw mm4, mm7
- movq mm6, mm3 ; mm6 := Second 4 bytes p1+1 in words
- punpckhbw mm6, mm7
- paddw mm4, mm6
-
- movq mm5, [esi+1] ; mm5 := first 4 bytes p1+1
- punpckhbw mm5, mm7 ; First 4 bytes p1 in Words...
- paddw mm4, mm5
- movq mm6, [ebx+1] ; mm6 := first 4 bytes p1+lx+1
- punpckhbw mm6, mm7
- paddw mm4, mm6
-
- psrlw mm4, 2 ; mm4 := First 4 bytes interpolated in words
-
- movq mm5, mm1 ; mm5:= second 4 bytes of p2 in words
- punpckhbw mm5, mm7
-
- movq mm7,mm4
- pcmpgtw mm7,mm5 ; mm7 := [i : W0..3,mm4>mm5]
-
- movq mm6,mm4 ; mm6 := [i : W0..3, (mm4-mm5)*(mm4-mm5 > 0)]
- psubw mm6,mm5
- pand mm6, mm7
-
- paddw mm0, mm6 ; Add to accumulator
-
- movq mm6,mm5 ; mm6 := [i : W0..3,mm5>mm4]
- pcmpgtw mm6,mm4
- psubw mm5,mm4 ; mm5 := [i : B0..7, (mm5-mm4)*(mm5-mm4 > 0)]
- pand mm5, mm6
-
- paddw mm0, mm5 ; Add to accumulator
-
-
- ;;
- ;; Second 8 bytes of row
- ;;
- ;; First 4 bytes of 8
-
- movq mm4, [esi+8] ; mm4 := first 4 bytes p1+8
- pxor mm7, mm7
- movq mm2, mm4 ; mm2 records all 8 bytes
- punpcklbw mm4, mm7 ; First 4 bytes p1 in Words...
-
- movq mm6, [ebx+8] ; mm6 := first 4 bytes p1+lx+8
- movq mm3, mm6 ; mm3 records all 8 bytes
- punpcklbw mm6, mm7
- paddw mm4, mm6
-
-
- movq mm5, [esi+9] ; mm5 := first 4 bytes p1+9
- punpcklbw mm5, mm7 ; First 4 bytes p1 in Words...
- paddw mm4, mm5
- movq mm6, [ebx+9] ; mm6 := first 4 bytes p1+lx+9
- punpcklbw mm6, mm7
- paddw mm4, mm6
-
- psrlw mm4, 2 ; mm4 := First 4 bytes interpolated in words
-
- movq mm5, [edi+8] ; mm5:=first 4 bytes of p2+8 in words
- movq mm1, mm5
- punpcklbw mm5, mm7
-
- movq mm7,mm4
- pcmpgtw mm7,mm5 ; mm7 := [i : W0..3,mm4>mm5]
-
- movq mm6,mm4 ; mm6 := [i : W0..3, (mm4-mm5)*(mm4-mm5 > 0)]
- psubw mm6,mm5
- pand mm6, mm7
-
- paddw mm0, mm6 ; Add to accumulator
-
- movq mm6,mm5 ; mm6 := [i : W0..3,mm5>mm4]
- pcmpgtw mm6,mm4
- psubw mm5,mm4 ; mm5 := [i : B0..7, (mm5-mm4)*(mm5-mm4 > 0)]
- pand mm5, mm6
-
- paddw mm0, mm5 ; Add to accumulator
-
- ;; Second 4 bytes of 8
-
- movq mm4, mm2 ; mm4 := Second 4 bytes p1 in words
- pxor mm7, mm7
- punpckhbw mm4, mm7
- movq mm6, mm3 ; mm6 := Second 4 bytes p1+1 in words
- punpckhbw mm6, mm7
- paddw mm4, mm6
-
- movq mm5, [esi+9] ; mm5 := first 4 bytes p1+1
- punpckhbw mm5, mm7 ; First 4 bytes p1 in Words...
- paddw mm4, mm5
- movq mm6, [ebx+9] ; mm6 := first 4 bytes p1+lx+1
- punpckhbw mm6, mm7
- paddw mm4, mm6
-
- psrlw mm4, 2 ; mm4 := First 4 bytes interpolated in words
-
- movq mm5, mm1 ; mm5:= second 4 bytes of p2 in words
- punpckhbw mm5, mm7
-
- movq mm7,mm4
- pcmpgtw mm7,mm5 ; mm7 := [i : W0..3,mm4>mm5]
-
- movq mm6,mm4 ; mm6 := [i : W0..3, (mm4-mm5)*(mm4-mm5 > 0)]
- psubw mm6,mm5
- pand mm6, mm7
-
- paddw mm0, mm6 ; Add to accumulator
-
- movq mm6,mm5 ; mm6 := [i : W0..3,mm5>mm4]
- pcmpgtw mm6,mm4
- psubw mm5,mm4 ; mm5 := [i : B0..7, (mm5-mm4)*(mm5-mm4 > 0)]
- pand mm5, mm6
-
- paddw mm0, mm5 ; Add to accumulator
-
-
- ;;
- ;; Loop termination condition... and stepping
- ;;
-
- add esi, edx ; update pointer to next row
- add edi, edx ; ditto
- add ebx, edx
-
- sub ecx,1
- test ecx, ecx ; check rowsleft
- jnz near .nextrowmm11
-
- ;; Sum the Accumulators
- movq mm4, mm0
- psrlq mm4, 32
- paddw mm0, mm4
- movq mm6, mm0
- psrlq mm6, 16
- paddw mm0, mm6
- movd eax, mm0 ; store return value
- and eax, 0xffff
-
- pop edi
- pop esi
- pop edx
- pop ecx
- pop ebx
-
- pop ebp ; restore stack pointer
-
- emms ; clear mmx registers
- ret ; we now return you to your regular programming
-
-
--
Libav/FFmpeg packaging
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