Merge "Update vpx subpixel 1d filter ssse3 asm"

1 files changed, 556 insertions, 388 deletions

diff --git a/vpx_dsp/x86/vpx_subpixel_8t_ssse3.asm b/vpx_dsp/x86/vpx_subpixel_8t_ssse3.asm
index d2cb8ea29..17da26889 100644
--- a/vpx_dsp/x86/vpx_subpixel_8t_ssse3.asm
+++ b/vpx_dsp/x86/vpx_subpixel_8t_ssse3.asm
@@ -23,11 +23,7 @@ pw_64:    times 8 dw 64
 ; z = signed SAT(x + y)
 
 SECTION .text
-%if ARCH_X86_64
-  %define LOCAL_VARS_SIZE 16*4
-%else
-  %define LOCAL_VARS_SIZE 16*6
-%endif
+%define LOCAL_VARS_SIZE 16*6
 
 %macro SETUP_LOCAL_VARS 0
     ; TODO(slavarnway): using xmm registers for these on ARCH_X86_64 +
@@ -54,11 +50,11 @@ SECTION .text
     mova       k6k7, m3
 %if ARCH_X86_64
     %define     krd  m12
-    %define     tmp  m13
+    %define    tmp0  [rsp + 16*4]
+    %define    tmp1  [rsp + 16*5]
     mova        krd, [GLOBAL(pw_64)]
 %else
-    %define     tmp  [rsp + 16*4]
-    %define     krd  [rsp + 16*5]
+    %define     krd  [rsp + 16*4]
 %if CONFIG_PIC=0
     mova         m6, [GLOBAL(pw_64)]
 %else
@@ -71,50 +67,31 @@ SECTION .text
 %endif
 %endm
 
-%macro HORIZx4_ROW 2
-    mova      %2, %1
-    punpcklbw %1, %1
-    punpckhbw %2, %2
-
-    mova      m3, %2
-    palignr   %2, %1, 1
-    palignr   m3, %1, 5
-
-    pmaddubsw %2, k0k1k4k5
-    pmaddubsw m3, k2k3k6k7
-    mova      m4, %2        ;k0k1
-    mova      m5, m3        ;k2k3
-    psrldq    %2, 8         ;k4k5
-    psrldq    m3, 8         ;k6k7
-    paddsw    %2, m4
-    paddsw    m5, m3
-    paddsw    %2, m5
-    paddsw    %2, krd
-    psraw     %2, 7
-    packuswb  %2, %2
-%endm
-
 ;-------------------------------------------------------------------------------
+%if ARCH_X86_64
+  %define LOCAL_VARS_SIZE_H4 0
+%else
+  %define LOCAL_VARS_SIZE_H4 16*4
+%endif
+
 %macro SUBPIX_HFILTER4 1
-cglobal filter_block1d4_%1, 6, 6+(ARCH_X86_64*2), 11, LOCAL_VARS_SIZE, \
+cglobal filter_block1d4_%1, 6, 6, 11, LOCAL_VARS_SIZE_H4, \
                             src, sstride, dst, dstride, height, filter
     mova                m4, [filterq]
     packsswb            m4, m4
 %if ARCH_X86_64
-    %define       k0k1k4k5 m8
-    %define       k2k3k6k7 m9
-    %define            krd m10
-    %define    orig_height r7d
+    %define       k0k1k4k5  m8
+    %define       k2k3k6k7  m9
+    %define            krd  m10
     mova               krd, [GLOBAL(pw_64)]
     pshuflw       k0k1k4k5, m4, 0b              ;k0_k1
     pshufhw       k0k1k4k5, k0k1k4k5, 10101010b ;k0_k1_k4_k5
     pshuflw       k2k3k6k7, m4, 01010101b       ;k2_k3
     pshufhw       k2k3k6k7, k2k3k6k7, 11111111b ;k2_k3_k6_k7
 %else
-    %define       k0k1k4k5 [rsp + 16*0]
-    %define       k2k3k6k7 [rsp + 16*1]
-    %define            krd [rsp + 16*2]
-    %define    orig_height [rsp + 16*3]
+    %define       k0k1k4k5  [rsp + 16*0]
+    %define       k2k3k6k7  [rsp + 16*1]
+    %define            krd  [rsp + 16*2]
     pshuflw             m6, m4, 0b              ;k0_k1
     pshufhw             m6, m6, 10101010b       ;k0_k1_k4_k5
     pshuflw             m7, m4, 01010101b       ;k2_k3
@@ -131,61 +108,46 @@ cglobal filter_block1d4_%1, 6, 6+(ARCH_X86_64*2), 11, LOCAL_VARS_SIZE, \
     mova          k2k3k6k7, m7
     mova               krd, m1
 %endif
-    mov        orig_height, heightd
-    shr            heightd, 1
+    dec            heightd
+
 .loop:
     ;Do two rows at once
-    movh                m0, [srcq - 3]
-    movh                m1, [srcq + 5]
-    punpcklqdq          m0, m1
-    mova                m1, m0
-    movh                m2, [srcq + sstrideq - 3]
-    movh                m3, [srcq + sstrideq + 5]
-    punpcklqdq          m2, m3
-    mova                m3, m2
-    punpcklbw           m0, m0
-    punpckhbw           m1, m1
-    punpcklbw           m2, m2
-    punpckhbw           m3, m3
-    mova                m4, m1
-    palignr             m4, m0,  1
-    pmaddubsw           m4, k0k1k4k5
-    palignr             m1, m0,  5
+    movu                m4, [srcq - 3]
+    movu                m5, [srcq + sstrideq - 3]
+    punpckhbw           m1, m4, m4
+    punpcklbw           m4, m4
+    punpckhbw           m3, m5, m5
+    punpcklbw           m5, m5
+    palignr             m0, m1, m4, 1
+    pmaddubsw           m0, k0k1k4k5
+    palignr             m1, m4, 5
     pmaddubsw           m1, k2k3k6k7
-    mova                m7, m3
-    palignr             m7, m2,  1
-    pmaddubsw           m7, k0k1k4k5
-    palignr             m3, m2,  5
+    palignr             m2, m3, m5, 1
+    pmaddubsw           m2, k0k1k4k5
+    palignr             m3, m5, 5
     pmaddubsw           m3, k2k3k6k7
-    mova                m0, m4                  ;k0k1
-    mova                m5, m1                  ;k2k3
-    mova                m2, m7                  ;k0k1 upper
-    psrldq              m4, 8                   ;k4k5
-    psrldq              m1, 8                   ;k6k7
-    paddsw              m4, m0
-    paddsw              m5, m1
-    mova                m1, m3                  ;k2k3 upper
-    psrldq              m7, 8                   ;k4k5 upper
-    psrldq              m3, 8                   ;k6k7 upper
-    paddsw              m7, m2
-    paddsw              m4, m5
-    paddsw              m1, m3
-    paddsw              m7, m1
-    paddsw              m4, krd
-    psraw               m4, 7
-    packuswb            m4, m4
-    paddsw              m7, krd
-    psraw               m7, 7
-    packuswb            m7, m7
+    punpckhqdq          m4, m0, m2
+    punpcklqdq          m0, m2
+    punpckhqdq          m5, m1, m3
+    punpcklqdq          m1, m3
+    paddsw              m0, m4
+    paddsw              m1, m5
+%ifidn %1, h8_avg
+    movd                m4, [dstq]
+    movd                m5, [dstq + dstrideq]
+%endif
+    paddsw              m0, m1
+    paddsw              m0, krd
+    psraw               m0, 7
+    packuswb            m0, m0
+    psrldq              m1, m0, 4
 
 %ifidn %1, h8_avg
-    movd                m0, [dstq]
-    pavgb               m4, m0
-    movd                m2, [dstq + dstrideq]
-    pavgb               m7, m2
+    pavgb               m0, m4
+    pavgb               m1, m5
 %endif
-    movd            [dstq], m4
-    movd [dstq + dstrideq], m7
+    movd            [dstq], m0
+    movd [dstq + dstrideq], m1
 
     lea               srcq, [srcq + sstrideq        ]
     prefetcht0              [srcq + 4 * sstrideq - 3]
@@ -193,205 +155,156 @@ cglobal filter_block1d4_%1, 6, 6+(ARCH_X86_64*2), 11, LOCAL_VARS_SIZE, \
     lea               dstq, [dstq + 2 * dstrideq    ]
     prefetcht0              [srcq + 2 * sstrideq - 3]
 
-    dec            heightd
-    jnz              .loop
+    sub            heightd, 2
+    jg               .loop
 
     ; Do last row if output_height is odd
-    mov            heightd, orig_height
-    and            heightd, 1
-    je               .done
-
-    movh                m0, [srcq - 3]    ; load src
-    movh                m1, [srcq + 5]
-    punpcklqdq          m0, m1
-
-    HORIZx4_ROW         m0, m1
+    jne              .done
+
+    movu                m4, [srcq - 3]
+    punpckhbw           m1, m4, m4
+    punpcklbw           m4, m4
+    palignr             m0, m1, m4, 1
+    palignr             m1, m4, 5
+    pmaddubsw           m0, k0k1k4k5
+    pmaddubsw           m1, k2k3k6k7
+    psrldq              m2, m0, 8
+    psrldq              m3, m1, 8
+    paddsw              m0, m2
+    paddsw              m1, m3
+    paddsw              m0, m1
+    paddsw              m0, krd
+    psraw               m0, 7
+    packuswb            m0, m0
 %ifidn %1, h8_avg
-    movd                m0, [dstq]
-    pavgb               m1, m0
+    movd                m4, [dstq]
+    pavgb               m0, m4
 %endif
-    movd            [dstq], m1
+    movd            [dstq], m0
 .done
-    RET
-%endm
-
-%macro HORIZx8_ROW 5
-    mova        %2, %1
-    punpcklbw   %1, %1
-    punpckhbw   %2, %2
-
-    mova        %3, %2
-    mova        %4, %2
-    mova        %5, %2
-
-    palignr     %2, %1, 1
-    palignr     %3, %1, 5
-    palignr     %4, %1, 9
-    palignr     %5, %1, 13
-
-    pmaddubsw   %2, k0k1
-    pmaddubsw   %3, k2k3
-    pmaddubsw   %4, k4k5
-    pmaddubsw   %5, k6k7
-    paddsw      %2, %4
-    paddsw      %5, %3
-    paddsw      %2, %5
-    paddsw      %2, krd
-    psraw       %2, 7
-    packuswb    %2, %2
-    SWAP        %1, %2
+    REP_RET
 %endm
 
 ;-------------------------------------------------------------------------------
 %macro SUBPIX_HFILTER8 1
-cglobal filter_block1d8_%1, 6, 6+(ARCH_X86_64*1), 14, LOCAL_VARS_SIZE, \
+cglobal filter_block1d8_%1, 6, 6, 14, LOCAL_VARS_SIZE, \
                             src, sstride, dst, dstride, height, filter
     mova                 m4, [filterq]
     SETUP_LOCAL_VARS
-%if ARCH_X86_64
-    %define     orig_height r7d
-%else
-    %define     orig_height heightmp
-%endif
-    mov         orig_height, heightd
-    shr             heightd, 1
+    dec             heightd
 
 .loop:
-    movh                 m0, [srcq - 3]
-    movh                 m3, [srcq + 5]
-    movh                 m4, [srcq + sstrideq - 3]
-    movh                 m7, [srcq + sstrideq + 5]
-    punpcklqdq           m0, m3
-    mova                 m1, m0
+    ;Do two rows at once
+    movu                 m0, [srcq - 3]
+    movu                 m4, [srcq + sstrideq - 3]
+    punpckhbw            m1, m0, m0
     punpcklbw            m0, m0
-    punpckhbw            m1, m1
-    mova                 m5, m1
-    palignr              m5, m0, 13
+    palignr              m5, m1, m0, 13
     pmaddubsw            m5, k6k7
-    mova                 m2, m1
-    mova                 m3, m1
+    palignr              m2, m1, m0, 5
+    palignr              m3, m1, m0, 9
     palignr              m1, m0, 1
     pmaddubsw            m1, k0k1
-    punpcklqdq           m4, m7
-    mova                 m6, m4
+    punpckhbw            m6, m4, m4
     punpcklbw            m4, m4
-    palignr              m2, m0, 5
-    punpckhbw            m6, m6
-    palignr              m3, m0, 9
-    mova                 m7, m6
     pmaddubsw            m2, k2k3
     pmaddubsw            m3, k4k5
 
-    palignr              m7, m4, 13
-    mova                 m0, m6
-    palignr              m0, m4, 5
+    palignr              m7, m6, m4, 13
+    palignr              m0, m6, m4, 5
     pmaddubsw            m7, k6k7
     paddsw               m1, m3
     paddsw               m2, m5
     paddsw               m1, m2
-    mova                 m5, m6
+%ifidn %1, h8_avg
+    movh                 m2, [dstq]
+    movhps               m2, [dstq + dstrideq]
+%endif
+    palignr              m5, m6, m4, 9
     palignr              m6, m4, 1
     pmaddubsw            m0, k2k3
     pmaddubsw            m6, k0k1
-    palignr              m5, m4, 9
     paddsw               m1, krd
     pmaddubsw            m5, k4k5
     psraw                m1, 7
     paddsw               m0, m7
-%ifidn %1, h8_avg
-    movh                 m7, [dstq]
-    movh                 m2, [dstq + dstrideq]
-%endif
-    packuswb             m1, m1
     paddsw               m6, m5
     paddsw               m6, m0
     paddsw               m6, krd
     psraw                m6, 7
-    packuswb             m6, m6
+    packuswb             m1, m6
 %ifidn %1, h8_avg
-    pavgb                m1, m7
-    pavgb                m6, m2
+    pavgb                m1, m2
 %endif
-    movh             [dstq], m1
-    movh  [dstq + dstrideq], m6
+    movh              [dstq], m1
+    movhps [dstq + dstrideq], m1
 
     lea                srcq, [srcq + sstrideq        ]
     prefetcht0               [srcq + 4 * sstrideq - 3]
     lea                srcq, [srcq + sstrideq        ]
     lea                dstq, [dstq + 2 * dstrideq    ]
     prefetcht0               [srcq + 2 * sstrideq - 3]
-    dec             heightd
-    jnz             .loop
+    sub             heightd, 2
+    jg                .loop
 
-    ;Do last row if output_height is odd
-    mov             heightd, orig_height
-    and             heightd, 1
-    je                .done
-
-    movh                 m0, [srcq - 3]
-    movh                 m3, [srcq + 5]
-    punpcklqdq           m0, m3
-
-    HORIZx8_ROW          m0, m1, m2, m3, m4
+    ; Do last row if output_height is odd
+    jne               .done
 
+    movu                 m0, [srcq - 3]
+    punpckhbw            m3, m0, m0
+    punpcklbw            m0, m0
+    palignr              m1, m3, m0, 1
+    palignr              m2, m3, m0, 5
+    palignr              m4, m3, m0, 13
+    palignr              m3, m0, 9
+    pmaddubsw            m1, k0k1
+    pmaddubsw            m2, k2k3
+    pmaddubsw            m3, k4k5
+    pmaddubsw            m4, k6k7
+    paddsw               m1, m3
+    paddsw               m4, m2
+    paddsw               m1, m4
+    paddsw               m1, krd
+    psraw                m1, 7
+    packuswb             m1, m1
 %ifidn %1, h8_avg
-    movh                 m1, [dstq]
-    pavgb                m0, m1
+    movh                 m0, [dstq]
+    pavgb                m1, m0
 %endif
-    movh             [dstq], m0
+    movh             [dstq], m1
 .done:
-    RET
+    REP_RET
 %endm
 
 ;-------------------------------------------------------------------------------
 %macro SUBPIX_HFILTER16 1
-cglobal filter_block1d16_%1, 6, 6+(ARCH_X86_64*0), 14, LOCAL_VARS_SIZE, \
+cglobal filter_block1d16_%1, 6, 6, 14, LOCAL_VARS_SIZE, \
                              src, sstride, dst, dstride, height, filter
     mova          m4, [filterq]
     SETUP_LOCAL_VARS
+
 .loop:
     prefetcht0        [srcq + 2 * sstrideq -3]
 
-    movh          m0, [srcq -  3]
-    movh          m4, [srcq +  5]
-    movh          m6, [srcq + 13]
-    punpcklqdq    m0, m4
-    mova          m7, m0
-    punpckhbw     m0, m0
-    mova          m1, m0
-    punpcklqdq    m4, m6
-    mova          m3, m0
-    punpcklbw     m7, m7
-
-    palignr       m3, m7, 13
-    mova          m2, m0
-    pmaddubsw     m3, k6k7
-    palignr       m0, m7, 1
+    movu          m0, [srcq - 3]
+    movu          m4, [srcq - 2]
     pmaddubsw     m0, k0k1
-    palignr       m1, m7, 5
-    pmaddubsw     m1, k2k3
-    palignr       m2, m7, 9
-    pmaddubsw     m2, k4k5
-    paddsw        m1, m3
-    mova          m3, m4
-    punpckhbw     m4, m4
-    mova          m5, m4
-    punpcklbw     m3, m3
-    mova          m7, m4
-    palignr       m5, m3, 5
-    mova          m6, m4
-    palignr       m4, m3, 1
     pmaddubsw     m4, k0k1
+    movu          m1, [srcq - 1]
+    movu          m5, [srcq + 0]
+    pmaddubsw     m1, k2k3
     pmaddubsw     m5, k2k3
-    palignr       m6, m3, 9
+    movu          m2, [srcq + 1]
+    movu          m6, [srcq + 2]
+    pmaddubsw     m2, k4k5
     pmaddubsw     m6, k4k5
-    palignr       m7, m3, 13
+    movu          m3, [srcq + 3]
+    movu          m7, [srcq + 4]
+    pmaddubsw     m3, k6k7
     pmaddubsw     m7, k6k7
     paddsw        m0, m2
+    paddsw        m1, m3
     paddsw        m0, m1
-%ifidn %1, h8_avg
-    mova          m1, [dstq]
-%endif
     paddsw        m4, m6
     paddsw        m5, m7
     paddsw        m4, m5
@@ -399,16 +312,18 @@ cglobal filter_block1d16_%1, 6, 6+(ARCH_X86_64*0), 14, LOCAL_VARS_SIZE, \
     paddsw        m4, krd
     psraw         m0, 7
     psraw         m4, 7
-    packuswb      m0, m4
+    packuswb      m0, m0
+    packuswb      m4, m4
+    punpcklbw     m0, m4
 %ifidn %1, h8_avg
-    pavgb         m0, m1
+    pavgb         m0, [dstq]
 %endif
     lea         srcq, [srcq + sstrideq]
     mova      [dstq], m0
     lea         dstq, [dstq + dstrideq]
     dec      heightd
     jnz        .loop
-    RET
+    REP_RET
 %endm
 
 INIT_XMM ssse3
@@ -420,204 +335,457 @@ SUBPIX_HFILTER4  h8
 SUBPIX_HFILTER4  h8_avg
 
 ;-------------------------------------------------------------------------------
+
+; TODO(Linfeng): Detect cpu type and choose the code with better performance.
+%define X86_SUBPIX_VFILTER_PREFER_SLOW_CELERON 1
+
 %macro SUBPIX_VFILTER 2
-cglobal filter_block1d%2_%1, 6, 6+(ARCH_X86_64*3), 14, LOCAL_VARS_SIZE, \
+cglobal filter_block1d%2_%1, 6, 6, 15, LOCAL_VARS_SIZE, \
                              src, sstride, dst, dstride, height, filter
     mova          m4, [filterq]
     SETUP_LOCAL_VARS
-%if ARCH_X86_64
-    %define      src1q r7
-    %define  sstride6q r8
-    %define dst_stride dstrideq
+
+%ifidn %2, 8
+    %define                movx  movh
 %else
-    %define      src1q filterq
-    %define  sstride6q dstrideq
-    %define dst_stride dstridemp
+    %define                movx  movd
 %endif
-    mov       src1q, srcq
-    add       src1q, sstrideq
-    lea   sstride6q, [sstrideq + sstrideq * 4]
-    add   sstride6q, sstrideq                   ;pitch * 6
 
-%ifidn %2, 8
-    %define movx movh
+    dec                 heightd
+
+%if ARCH_X86 || X86_SUBPIX_VFILTER_PREFER_SLOW_CELERON
+
+%if ARCH_X86_64
+    %define               src1q  r7
+    %define           sstride6q  r8
+    %define          dst_stride  dstrideq
 %else
-    %define movx movd
+    %define               src1q  filterq
+    %define           sstride6q  dstrideq
+    %define          dst_stride  dstridemp
 %endif
+    mov                   src1q, srcq
+    add                   src1q, sstrideq
+    lea               sstride6q, [sstrideq + sstrideq * 4]
+    add               sstride6q, sstrideq                   ;pitch * 6
+
 .loop:
-    movx         m0, [srcq                ]     ;A
-    movx         m1, [srcq + sstrideq     ]     ;B
-    punpcklbw    m0, m1                         ;A B
-    movx         m2, [srcq + sstrideq * 2 ]     ;C
-    pmaddubsw    m0, k0k1
-    mova         m6, m2
-    movx         m3, [src1q + sstrideq * 2]     ;D
-    punpcklbw    m2, m3                         ;C D
-    pmaddubsw    m2, k2k3
-    movx         m4, [srcq + sstrideq * 4 ]     ;E
-    mova         m7, m4
-    movx         m5, [src1q + sstrideq * 4]     ;F
-    punpcklbw    m4, m5                         ;E F
-    pmaddubsw    m4, k4k5
-    punpcklbw    m1, m6                         ;A B next iter
-    movx         m6, [srcq + sstride6q    ]     ;G
-    punpcklbw    m5, m6                         ;E F next iter
-    punpcklbw    m3, m7                         ;C D next iter
-    pmaddubsw    m5, k4k5
-    movx         m7, [src1q + sstride6q   ]     ;H
-    punpcklbw    m6, m7                         ;G H
-    pmaddubsw    m6, k6k7
-    pmaddubsw    m3, k2k3
-    pmaddubsw    m1, k0k1
-    paddsw       m0, m4
-    paddsw       m2, m6
-    movx         m6, [srcq + sstrideq * 8 ]     ;H next iter
-    punpcklbw    m7, m6
-    pmaddubsw    m7, k6k7
-    paddsw       m0, m2
-    paddsw       m0, krd
-    psraw        m0, 7
-    paddsw       m1, m5
-    packuswb     m0, m0
-
-    paddsw       m3, m7
-    paddsw       m1, m3
-    paddsw       m1, krd
-    psraw        m1, 7
-    lea        srcq, [srcq + sstrideq * 2 ]
-    lea       src1q, [src1q + sstrideq * 2]
-    packuswb     m1, m1
+    ;Do two rows at once
+    movx                     m0, [srcq                ]     ;A
+    movx                     m1, [src1q               ]     ;B
+    punpcklbw                m0, m1                         ;A B
+    movx                     m2, [srcq + sstrideq * 2 ]     ;C
+    pmaddubsw                m0, k0k1
+    mova                     m6, m2
+    movx                     m3, [src1q + sstrideq * 2]     ;D
+    punpcklbw                m2, m3                         ;C D
+    pmaddubsw                m2, k2k3
+    movx                     m4, [srcq + sstrideq * 4 ]     ;E
+    mova                     m7, m4
+    movx                     m5, [src1q + sstrideq * 4]     ;F
+    punpcklbw                m4, m5                         ;E F
+    pmaddubsw                m4, k4k5
+    punpcklbw                m1, m6                         ;A B next iter
+    movx                     m6, [srcq + sstride6q    ]     ;G
+    punpcklbw                m5, m6                         ;E F next iter
+    punpcklbw                m3, m7                         ;C D next iter
+    pmaddubsw                m5, k4k5
+    movx                     m7, [src1q + sstride6q   ]     ;H
+    punpcklbw                m6, m7                         ;G H
+    pmaddubsw                m6, k6k7
+    pmaddubsw                m3, k2k3
+    pmaddubsw                m1, k0k1
+    paddsw                   m0, m4
+    paddsw                   m2, m6
+    movx                     m6, [srcq + sstrideq * 8 ]     ;H next iter
+    punpcklbw                m7, m6
+    pmaddubsw                m7, k6k7
+    paddsw                   m0, m2
+    paddsw                   m0, krd
+    psraw                    m0, 7
+    paddsw                   m1, m5
+    packuswb                 m0, m0
+
+    paddsw                   m3, m7
+    paddsw                   m1, m3
+    paddsw                   m1, krd
+    psraw                    m1, 7
+    lea                    srcq, [srcq + sstrideq * 2 ]
+    lea                   src1q, [src1q + sstrideq * 2]
+    packuswb                 m1, m1
 
 %ifidn %1, v8_avg
-    movx         m2, [dstq]
-    pavgb        m0, m2
+    movx                     m2, [dstq]
+    pavgb                    m0, m2
 %endif
-    movx     [dstq], m0
-    add        dstq, dst_stride
+    movx                 [dstq], m0
+    add                    dstq, dst_stride
 %ifidn %1, v8_avg
-    movx         m3, [dstq]
-    pavgb        m1, m3
+    movx                     m3, [dstq]
+    pavgb                    m1, m3
+%endif
+    movx                 [dstq], m1
+    add                    dstq, dst_stride
+    sub                 heightd, 2
+    jg                    .loop
+
+    ; Do last row if output_height is odd
+    jne                   .done
+
+    movx                     m0, [srcq                ]     ;A
+    movx                     m1, [srcq + sstrideq     ]     ;B
+    movx                     m6, [srcq + sstride6q    ]     ;G
+    punpcklbw                m0, m1                         ;A B
+    movx                     m7, [src1q + sstride6q   ]     ;H
+    pmaddubsw                m0, k0k1
+    movx                     m2, [srcq + sstrideq * 2 ]     ;C
+    punpcklbw                m6, m7                         ;G H
+    movx                     m3, [src1q + sstrideq * 2]     ;D
+    pmaddubsw                m6, k6k7
+    movx                     m4, [srcq + sstrideq * 4 ]     ;E
+    punpcklbw                m2, m3                         ;C D
+    movx                     m5, [src1q + sstrideq * 4]     ;F
+    punpcklbw                m4, m5                         ;E F
+    pmaddubsw                m2, k2k3
+    pmaddubsw                m4, k4k5
+    paddsw                   m2, m6
+    paddsw                   m0, m4
+    paddsw                   m0, m2
+    paddsw                   m0, krd
+    psraw                    m0, 7
+    packuswb                 m0, m0
+%ifidn %1, v8_avg
+    movx                     m1, [dstq]
+    pavgb                    m0, m1
+%endif
+    movx                 [dstq], m0
+
+%else
+    ; ARCH_X86_64
+
+    movx                     m0, [srcq                ]     ;A
+    movx                     m1, [srcq + sstrideq     ]     ;B
+    lea                    srcq, [srcq + sstrideq * 2 ]
+    movx                     m2, [srcq]                     ;C
+    movx                     m3, [srcq + sstrideq]          ;D
+    lea                    srcq, [srcq + sstrideq * 2 ]
+    movx                     m4, [srcq]                     ;E
+    movx                     m5, [srcq + sstrideq]          ;F
+    lea                    srcq, [srcq + sstrideq * 2 ]
+    movx                     m6, [srcq]                     ;G
+    punpcklbw                m0, m1                         ;A B
+    punpcklbw                m1, m2                         ;A B next iter
+    punpcklbw                m2, m3                         ;C D
+    punpcklbw                m3, m4                         ;C D next iter
+    punpcklbw                m4, m5                         ;E F
+    punpcklbw                m5, m6                         ;E F next iter
+
+.loop:
+    ;Do two rows at once
+    movx                     m7, [srcq + sstrideq]          ;H
+    lea                    srcq, [srcq + sstrideq * 2 ]
+    movx                    m14, [srcq]                     ;H next iter
+    punpcklbw                m6, m7                         ;G H
+    punpcklbw                m7, m14                        ;G H next iter
+    pmaddubsw                m8, m0, k0k1
+    pmaddubsw                m9, m1, k0k1
+    mova                     m0, m2
+    mova                     m1, m3
+    pmaddubsw               m10, m2, k2k3
+    pmaddubsw               m11, m3, k2k3
+    mova                     m2, m4
+    mova                     m3, m5
+    pmaddubsw                m4, k4k5
+    pmaddubsw                m5, k4k5
+    paddsw                   m8, m4
+    paddsw                   m9, m5
+    mova                     m4, m6
+    mova                     m5, m7
+    pmaddubsw                m6, k6k7
+    pmaddubsw                m7, k6k7
+    paddsw                  m10, m6
+    paddsw                  m11, m7
+    paddsw                   m8, m10
+    paddsw                   m9, m11
+    mova                     m6, m14
+    paddsw                   m8, krd
+    paddsw                   m9, krd
+    psraw                    m8, 7
+    psraw                    m9, 7
+%ifidn %2, 4
+    packuswb                 m8, m8
+    packuswb                 m9, m9
+%else
+    packuswb                 m8, m9
 %endif
-    movx     [dstq], m1
-    add        dstq, dst_stride
-    sub     heightd, 2
-    cmp     heightd, 1
-    jg        .loop
-
-    cmp     heightd, 0
-    je        .done
-
-    movx         m0, [srcq                ]     ;A
-    movx         m1, [srcq + sstrideq     ]     ;B
-    movx         m6, [srcq + sstride6q    ]     ;G
-    punpcklbw    m0, m1                         ;A B
-    movx         m7, [src1q + sstride6q   ]     ;H
-    pmaddubsw    m0, k0k1
-    movx         m2, [srcq + sstrideq * 2 ]     ;C
-    punpcklbw    m6, m7                         ;G H
-    movx         m3, [src1q + sstrideq * 2]     ;D
-    pmaddubsw    m6, k6k7
-    movx         m4, [srcq + sstrideq * 4 ]     ;E
-    punpcklbw    m2, m3                         ;C D
-    movx         m5, [src1q + sstrideq * 4]     ;F
-    punpcklbw    m4, m5                         ;E F
-    pmaddubsw    m2, k2k3
-    pmaddubsw    m4, k4k5
-    paddsw       m2, m6
-    paddsw       m0, m4
-    paddsw       m0, m2
-    paddsw       m0, krd
-    psraw        m0, 7
-    packuswb     m0, m0
+
 %ifidn %1, v8_avg
-    movx         m1, [dstq]
-    pavgb        m0, m1
+    movx                     m7, [dstq]
+%ifidn %2, 4
+    movx                    m10, [dstq + dstrideq]
+    pavgb                    m9, m10
+%else
+    movhpd                   m7, [dstq + dstrideq]
 %endif
-    movx     [dstq], m0
+    pavgb                    m8, m7
+%endif
+    movx                 [dstq], m8
+%ifidn %2, 4
+    movx      [dstq + dstrideq], m9
+%else
+    movhpd    [dstq + dstrideq], m8
+%endif
+
+    lea                    dstq, [dstq + dstrideq * 2 ]
+    sub                 heightd, 2
+    jg                    .loop
+
+    ; Do last row if output_height is odd
+    jne                   .done
+
+    movx                     m7, [srcq + sstrideq]          ;H
+    punpcklbw                m6, m7                         ;G H
+    pmaddubsw                m0, k0k1
+    pmaddubsw                m2, k2k3
+    pmaddubsw                m4, k4k5
+    pmaddubsw                m6, k6k7
+    paddsw                   m0, m4
+    paddsw                   m2, m6
+    paddsw                   m0, m2
+    paddsw                   m0, krd
+    psraw                    m0, 7
+    packuswb                 m0, m0
+%ifidn %1, v8_avg
+    movx                     m1, [dstq]
+    pavgb                    m0, m1
+%endif
+    movx                 [dstq], m0
+
+%endif ; ARCH_X86_64
+
 .done:
-    RET
+    REP_RET
+
 %endm
 
 ;-------------------------------------------------------------------------------
 %macro SUBPIX_VFILTER16 1
-cglobal filter_block1d16_%1, 6, 6+(ARCH_X86_64*3), 14, LOCAL_VARS_SIZE, \
+cglobal filter_block1d16_%1, 6, 6, 16, LOCAL_VARS_SIZE, \
                              src, sstride, dst, dstride, height, filter
-    mova          m4, [filterq]
+    mova                     m4, [filterq]
     SETUP_LOCAL_VARS
+
+%if ARCH_X86 || X86_SUBPIX_VFILTER_PREFER_SLOW_CELERON
+
 %if ARCH_X86_64
-    %define      src1q r7
-    %define  sstride6q r8
-    %define dst_stride dstrideq
+    %define               src1q  r7
+    %define           sstride6q  r8
+    %define          dst_stride  dstrideq
 %else
-    %define      src1q filterq
-    %define  sstride6q dstrideq
-    %define dst_stride dstridemp
+    %define               src1q  filterq
+    %define           sstride6q  dstrideq
+    %define          dst_stride  dstridemp
 %endif
-    mov        src1q, srcq
-    add        src1q, sstrideq
-    lea    sstride6q, [sstrideq + sstrideq * 4]
-    add    sstride6q, sstrideq                   ;pitch * 6
+    lea                   src1q, [srcq + sstrideq]
+    lea               sstride6q, [sstrideq + sstrideq * 4]
+    add               sstride6q, sstrideq                   ;pitch * 6
 
 .loop:
-    movh          m0, [srcq                ]     ;A
-    movh          m1, [srcq + sstrideq     ]     ;B
-    movh          m2, [srcq + sstrideq * 2 ]     ;C
-    movh          m3, [src1q + sstrideq * 2]     ;D
-    movh          m4, [srcq + sstrideq * 4 ]     ;E
-    movh          m5, [src1q + sstrideq * 4]     ;F
-
-    punpcklbw     m0, m1                         ;A B
-    movh          m6, [srcq + sstride6q]         ;G
-    punpcklbw     m2, m3                         ;C D
-    movh          m7, [src1q + sstride6q]        ;H
-    punpcklbw     m4, m5                         ;E F
-    pmaddubsw     m0, k0k1
-    movh          m3, [srcq + 8]                 ;A
-    pmaddubsw     m2, k2k3
-    punpcklbw     m6, m7                         ;G H
-    movh          m5, [srcq + sstrideq + 8]      ;B
-    pmaddubsw     m4, k4k5
-    punpcklbw     m3, m5                         ;A B
-    movh          m7, [srcq + sstrideq * 2 + 8]  ;C
-    pmaddubsw     m6, k6k7
-    movh          m5, [src1q + sstrideq * 2 + 8] ;D
-    punpcklbw     m7, m5                         ;C D
-    paddsw        m2, m6
-    pmaddubsw     m3, k0k1
-    movh          m1, [srcq + sstrideq * 4 + 8]  ;E
-    paddsw        m0, m4
-    pmaddubsw     m7, k2k3
-    movh          m6, [src1q + sstrideq * 4 + 8] ;F
-    punpcklbw     m1, m6                         ;E F
-    paddsw        m0, m2
-    paddsw        m0, krd
-    movh          m2, [srcq + sstride6q + 8]     ;G
-    pmaddubsw     m1, k4k5
-    movh          m5, [src1q + sstride6q + 8]    ;H
-    psraw         m0, 7
-    punpcklbw     m2, m5                         ;G H
-    pmaddubsw     m2, k6k7
+    movh                     m0, [srcq                ]     ;A
+    movh                     m1, [src1q               ]     ;B
+    movh                     m2, [srcq + sstrideq * 2 ]     ;C
+    movh                     m3, [src1q + sstrideq * 2]     ;D
+    movh                     m4, [srcq + sstrideq * 4 ]     ;E
+    movh                     m5, [src1q + sstrideq * 4]     ;F
+
+    punpcklbw                m0, m1                         ;A B
+    movh                     m6, [srcq + sstride6q]         ;G
+    punpcklbw                m2, m3                         ;C D
+    movh                     m7, [src1q + sstride6q]        ;H
+    punpcklbw                m4, m5                         ;E F
+    pmaddubsw                m0, k0k1
+    movh                     m3, [srcq + 8]                 ;A
+    pmaddubsw                m2, k2k3
+    punpcklbw                m6, m7                         ;G H
+    movh                     m5, [srcq + sstrideq + 8]      ;B
+    pmaddubsw                m4, k4k5
+    punpcklbw                m3, m5                         ;A B
+    movh                     m7, [srcq + sstrideq * 2 + 8]  ;C
+    pmaddubsw                m6, k6k7
+    movh                     m5, [src1q + sstrideq * 2 + 8] ;D
+    punpcklbw                m7, m5                         ;C D
+    paddsw                   m2, m6
+    pmaddubsw                m3, k0k1
+    movh                     m1, [srcq + sstrideq * 4 + 8]  ;E
+    paddsw                   m0, m4
+    pmaddubsw                m7, k2k3
+    movh                     m6, [src1q + sstrideq * 4 + 8] ;F
+    punpcklbw                m1, m6                         ;E F
+    paddsw                   m0, m2
+    paddsw                   m0, krd
+    movh                     m2, [srcq + sstride6q + 8]     ;G
+    pmaddubsw                m1, k4k5
+    movh                     m5, [src1q + sstride6q + 8]    ;H
+    psraw                    m0, 7
+    punpcklbw                m2, m5                         ;G H
+    pmaddubsw                m2, k6k7
+    paddsw                   m7, m2
+    paddsw                   m3, m1
+    paddsw                   m3, m7
+    paddsw                   m3, krd
+    psraw                    m3, 7
+    packuswb                 m0, m3
+
+    add                    srcq, sstrideq
+    add                   src1q, sstrideq
 %ifidn %1, v8_avg
-    mova          m4, [dstq]
+    pavgb                    m0, [dstq]
 %endif
-    movh      [dstq], m0
-    paddsw        m7, m2
-    paddsw        m3, m1
-    paddsw        m3, m7
-    paddsw        m3, krd
-    psraw         m3, 7
-    packuswb      m0, m3
-
-    add         srcq, sstrideq
-    add        src1q, sstrideq
+    mova                 [dstq], m0
+    add                    dstq, dst_stride
+    dec                 heightd
+    jnz                   .loop
+    REP_RET
+
+%else
+    ; ARCH_X86_64
+    dec                 heightd
+
+    movu                     m1, [srcq                ]     ;A
+    movu                     m3, [srcq + sstrideq     ]     ;B
+    lea                    srcq, [srcq + sstrideq * 2]
+    punpcklbw                m0, m1, m3                     ;A B
+    punpckhbw                m1, m3                         ;A B
+    movu                     m5, [srcq]                     ;C
+    punpcklbw                m2, m3, m5                     ;A B next iter
+    punpckhbw                m3, m5                         ;A B next iter
+    mova                   tmp0, m2                         ;store to stack
+    mova                   tmp1, m3                         ;store to stack
+    movu                     m7, [srcq + sstrideq]          ;D
+    lea                    srcq, [srcq + sstrideq * 2]
+    punpcklbw                m4, m5, m7                     ;C D
+    punpckhbw                m5, m7                         ;C D
+    movu                     m9, [srcq]                     ;E
+    punpcklbw                m6, m7, m9                     ;C D next iter
+    punpckhbw                m7, m9                         ;C D next iter
+    movu                    m11, [srcq + sstrideq]          ;F
+    lea                    srcq, [srcq + sstrideq * 2]
+    punpcklbw                m8, m9, m11                    ;E F
+    punpckhbw                m9, m11                        ;E F
+    movu                     m2, [srcq]                     ;G
+    punpcklbw               m10, m11, m2                    ;E F next iter
+    punpckhbw               m11, m2                         ;E F next iter
+
+.loop:
+    ;Do two rows at once
+    pmaddubsw               m13, m0, k0k1
+    mova                     m0, m4
+    pmaddubsw               m14, m8, k4k5
+    pmaddubsw               m15, m4, k2k3
+    mova                     m4, m8
+    paddsw                  m13, m14
+    movu                     m3, [srcq + sstrideq]          ;H
+    lea                    srcq, [srcq + sstrideq * 2]
+    punpcklbw               m14, m2, m3                     ;G H
+    mova                     m8, m14
+    pmaddubsw               m14, k6k7
+    paddsw                  m15, m14
+    paddsw                  m13, m15
+    paddsw                  m13, krd
+    psraw                   m13, 7
+
+    pmaddubsw               m14, m1, k0k1
+    pmaddubsw                m1, m9, k4k5
+    pmaddubsw               m15, m5, k2k3
+    paddsw                  m14, m1
+    mova                     m1, m5
+    mova                     m5, m9
+    punpckhbw                m2, m3                         ;G H
+    mova                     m9, m2
+    pmaddubsw                m2, k6k7
+    paddsw                  m15, m2
+    paddsw                  m14, m15
+    paddsw                  m14, krd
+    psraw                   m14, 7
+    packuswb                m13, m14
 %ifidn %1, v8_avg
-    pavgb         m0, m4
+    pavgb                   m13, [dstq]
 %endif
-    mova      [dstq], m0
-    add         dstq, dst_stride
-    dec      heightd
-    jnz        .loop
-    RET
+    mova                 [dstq], m13
+
+    ; next iter
+    pmaddubsw               m15, tmp0, k0k1
+    pmaddubsw               m14, m10, k4k5
+    pmaddubsw               m13, m6, k2k3
+    paddsw                  m15, m14
+    mova                   tmp0, m6
+    mova                     m6, m10
+    movu                     m2, [srcq]                     ;G next iter
+    punpcklbw               m14, m3, m2                     ;G H next iter
+    mova                    m10, m14
+    pmaddubsw               m14, k6k7
+    paddsw                  m13, m14
+    paddsw                  m15, m13
+    paddsw                  m15, krd
+    psraw                   m15, 7
+
+    pmaddubsw               m14, tmp1, k0k1
+    mova                   tmp1, m7
+    pmaddubsw               m13, m7, k2k3
+    mova                     m7, m11
+    pmaddubsw               m11, k4k5
+    paddsw                  m14, m11
+    punpckhbw                m3, m2                         ;G H next iter
+    mova                    m11, m3
+    pmaddubsw                m3, k6k7
+    paddsw                  m13, m3
+    paddsw                  m14, m13
+    paddsw                  m14, krd
+    psraw                   m14, 7
+    packuswb                m15, m14
+%ifidn %1, v8_avg
+    pavgb                   m15, [dstq + dstrideq]
+%endif
+    mova      [dstq + dstrideq], m15
+    lea                    dstq, [dstq + dstrideq * 2]
+    sub                 heightd, 2
+    jg                    .loop
+
+    ; Do last row if output_height is odd
+    jne                   .done
+
+    movu                     m3, [srcq + sstrideq]          ;H
+    punpcklbw                m6, m2, m3                     ;G H
+    punpckhbw                m2, m3                         ;G H
+    pmaddubsw                m0, k0k1
+    pmaddubsw                m1, k0k1
+    pmaddubsw                m4, k2k3
+    pmaddubsw                m5, k2k3
+    pmaddubsw                m8, k4k5
+    pmaddubsw                m9, k4k5
+    pmaddubsw                m6, k6k7
+    pmaddubsw                m2, k6k7
+    paddsw                   m0, m8
+    paddsw                   m1, m9
+    paddsw                   m4, m6
+    paddsw                   m5, m2
+    paddsw                   m0, m4
+    paddsw                   m1, m5
+    paddsw                   m0, krd
+    paddsw                   m1, krd
+    psraw                    m0, 7
+    psraw                    m1, 7
+    packuswb                 m0, m1
+%ifidn %1, v8_avg
+    pavgb                    m0, [dstq]
+%endif
+    mova                 [dstq], m0
+
+.done:
+    REP_RET
+
+%endif ; ARCH_X86_64
+
 %endm
 
 INIT_XMM ssse3