dsputil: Split off pixel block routines into their own context

1 files changed, 110 insertions, 0 deletions

diff --git a/libavcodec/x86/pixblockdsp.asm b/libavcodec/x86/pixblockdsp.asm
new file mode 100644
index 0000000000..c8fd1b24a1
--- /dev/null
+++ b/libavcodec/x86/pixblockdsp.asm
@@ -0,0 +1,110 @@
+;*****************************************************************************
+;* SIMD-optimized pixel operations
+;*****************************************************************************
+;* Copyright (c) 2000, 2001 Fabrice Bellard
+;* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+;*
+;* This file is part of Libav.
+;*
+;* Libav is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* Libav 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
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with Libav; 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
+; void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, int line_size)
+cglobal get_pixels, 3,4
+    movsxdifnidn r2, r2d
+    add          r0, 128
+    mov          r3, -128
+    pxor         m7, m7
+.loop:
+    mova         m0, [r1]
+    mova         m2, [r1+r2]
+    mova         m1, m0
+    mova         m3, m2
+    punpcklbw    m0, m7
+    punpckhbw    m1, m7
+    punpcklbw    m2, m7
+    punpckhbw    m3, m7
+    mova [r0+r3+ 0], m0
+    mova [r0+r3+ 8], m1
+    mova [r0+r3+16], m2
+    mova [r0+r3+24], m3
+    lea          r1, [r1+r2*2]
+    add          r3, 32
+    js .loop
+    REP_RET
+
+INIT_XMM sse2
+cglobal get_pixels, 3, 4
+    movsxdifnidn r2, r2d
+    lea          r3, [r2*3]
+    pxor         m4, m4
+    movh         m0, [r1]
+    movh         m1, [r1+r2]
+    movh         m2, [r1+r2*2]
+    movh         m3, [r1+r3]
+    lea          r1, [r1+r2*4]
+    punpcklbw    m0, m4
+    punpcklbw    m1, m4
+    punpcklbw    m2, m4
+    punpcklbw    m3, m4
+    mova       [r0], m0
+    mova  [r0+0x10], m1
+    mova  [r0+0x20], m2
+    mova  [r0+0x30], m3
+    movh         m0, [r1]
+    movh         m1, [r1+r2*1]
+    movh         m2, [r1+r2*2]
+    movh         m3, [r1+r3]
+    punpcklbw    m0, m4
+    punpcklbw    m1, m4
+    punpcklbw    m2, m4
+    punpcklbw    m3, m4
+    mova  [r0+0x40], m0
+    mova  [r0+0x50], m1
+    mova  [r0+0x60], m2
+    mova  [r0+0x70], m3
+    RET
+
+INIT_MMX mmx
+; void ff_diff_pixels_mmx(int16_t *block, const uint8_t *s1, const uint8_t *s2,
+;                         int stride);
+cglobal diff_pixels, 4,5
+    movsxdifnidn r3, r3d
+    pxor         m7, m7
+    add          r0,  128
+    mov          r4, -128
+.loop:
+    mova         m0, [r1]
+    mova         m2, [r2]
+    mova         m1, m0
+    mova         m3, m2
+    punpcklbw    m0, m7
+    punpckhbw    m1, m7
+    punpcklbw    m2, m7
+    punpckhbw    m3, m7
+    psubw        m0, m2
+    psubw        m1, m3
+    mova  [r0+r4+0], m0
+    mova  [r0+r4+8], m1
+    add          r1, r3
+    add          r2, r3
+    add          r4, 16
+    jne .loop
+    REP_RET