avfilter: port pullup filter from libmpcodecs

Signed-off-by: Paul B Mahol <onemda@gmail.com>

1 files changed, 178 insertions, 0 deletions

diff --git a/libavfilter/x86/vf_pullup.asm b/libavfilter/x86/vf_pullup.asm
new file mode 100644
index 0000000000..ca0806a77c
--- /dev/null
+++ b/libavfilter/x86/vf_pullup.asm
@@ -0,0 +1,178 @@
+;*****************************************************************************
+;* x86-optimized functions for pullup filter
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg 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.
+;*
+;* FFmpeg 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 FFmpeg; if not, write to the Free Software Foundation, Inc.,
+;* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+;******************************************************************************
+
+%include "libavutil/x86/x86util.asm"
+
+SECTION_TEXT
+
+INIT_MMX mmx
+cglobal pullup_filter_diff, 3, 5, 8, first, second, size
+    mov        r3, 4
+    pxor       m4, m4
+    pxor       m7, m7
+
+.loop:
+    movq       m0, [firstq]
+    movq       m2, [firstq]
+    add        firstq, sizeq
+    movq       m1, [secondq]
+    add        secondq, sizeq
+    psubusb    m2, m1
+    psubusb    m1, m0
+    movq       m0, m2
+    movq       m3, m1
+    punpcklbw  m0, m7
+    punpcklbw  m1, m7
+    punpckhbw  m2, m7
+    punpckhbw  m3, m7
+    paddw      m4, m0
+    paddw      m4, m1
+    paddw      m4, m2
+    paddw      m4, m3
+
+    dec        r3
+    jnz .loop
+
+    movq       m3, m4
+    punpcklwd  m4, m7
+    punpckhwd  m3, m7
+    paddd      m3, m4
+    movd      eax, m3
+    psrlq      m3, 32
+    movd       r4, m3
+    add       eax, r4
+    RET
+
+INIT_MMX mmx
+cglobal pullup_filter_comb, 3, 5, 8, first, second, size
+    mov        r3, 4
+    pxor       m6, m6
+    pxor       m7, m7
+    sub        secondq, sizeq
+
+.loop:
+    movq       m0, [secondq]
+    movq       m1, [secondq]
+    punpcklbw  m0, m7
+    movq       m2, [secondq+sizeq]
+    punpcklbw  m1, m7
+    punpcklbw  m2, m7
+    paddw      m0, m0
+    paddw      m1, m2
+    movq       m2, m0
+    psubusw    m0, m1
+    psubusw    m1, m2
+    paddw      m6, m0
+    paddw      m6, m1
+
+    movq       m0, [firstq]
+    movq       m1, [secondq]
+    punpckhbw  m0, m7
+    movq       m2, [secondq+sizeq]
+    punpckhbw  m1, m7
+    punpckhbw  m2, m7
+    paddw      m0, m0
+    paddw      m1, m2
+    movq       m2, m0
+    psubusw    m0, m1
+    psubusw    m1, m2
+    paddw      m6, m0
+    paddw      m6, m1
+
+    movq       m0, [secondq+sizeq]
+    movq       m1, [firstq]
+    punpcklbw  m0, m7
+    movq       m2, [firstq+sizeq]
+    punpcklbw  m1, m7
+    punpcklbw  m2, m7
+    paddw      m0, m0
+    paddw      m1, m2
+    movq       m2, m0
+    psubusw    m0, m1
+    psubusw    m1, m2
+    paddw      m6, m0
+    paddw      m6, m1
+
+    movq       m0, [secondq+sizeq]
+    movq       m1, [firstq]
+    punpckhbw  m0, m7
+    movq       m2, [firstq+sizeq]
+    punpckhbw  m1, m7
+    punpckhbw  m2, m7
+    paddw      m0, m0
+    paddw      m1, m2
+    movq       m2, m0
+    psubusw    m0, m1
+    psubusw    m1, m2
+    paddw      m6, m0
+    paddw      m6, m1
+
+    add        firstq, sizeq
+    add        secondq, sizeq
+    dec        r3
+    jnz .loop
+
+    movq       m5, m6
+    punpcklwd  m6, m7
+    punpckhwd  m5, m7
+    paddd      m5, m6
+    movd      eax, m5
+    psrlq      m5, 32
+    movd       r4, m5
+    add       eax, r4
+    RET
+
+INIT_MMX mmx
+cglobal pullup_filter_var, 3, 5, 8, first, second, size
+    mov        r3, 3
+    pxor       m4, m4
+    pxor       m7, m7
+
+.loop:
+    movq       m0, [firstq]
+    movq       m2, [firstq]
+    movq       m1, [firstq+sizeq]
+    add        firstq, sizeq
+    psubusb    m2, m1
+    psubusb    m1, m0
+    movq       m0, m2
+    movq       m3, m1
+    punpcklbw  m0, m7
+    punpcklbw  m1, m7
+    punpckhbw  m2, m7
+    punpckhbw  m3, m7
+    paddw      m4, m0
+    paddw      m4, m1
+    paddw      m4, m2
+    paddw      m4, m3
+
+    dec        r3
+    jnz .loop
+
+    movq       m3, m4
+    punpcklwd  m4, m7
+    punpckhwd  m3, m7
+    paddd      m3, m4
+    movd      eax, m3
+    psrlq      m3, 32
+    movd       r4, m3
+    add       eax, r4
+    shl       eax, 2
+    RET