Rename h264_weight_sse2.asm to h264_weight.asm; add 16x8/8x16/8x4 non-square

biweight code to sse2/ssse3; add sse2 weight code; and use that same code to
create mmx2 functions also, so that the inline asm in h264dsp_mmx.c can be
removed. OK'ed by Jason on IRC.

Originally committed as revision 25019 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 375 insertions, 0 deletions

diff --git a/libavcodec/x86/h264_weight.asm b/libavcodec/x86/h264_weight.asm
new file mode 100644
index 0000000000..864f708a0e
--- /dev/null
+++ b/libavcodec/x86/h264_weight.asm
@@ -0,0 +1,375 @@
+;*****************************************************************************
+;* SSE2-optimized weighted prediction code
+;*****************************************************************************
+;* Copyright (c) 2004-2005 Michael Niedermayer, Loren Merritt
+;* Copyright (C) 2010 Eli Friedman <eli.friedman@gmail.com>
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg 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.
+;*
+;* 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
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with FFmpeg; if not, write to the Free Software
+;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "x86inc.asm"
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+; biweight pred:
+;
+; void h264_biweight_16x16_sse2(uint8_t *dst, uint8_t *src, int stride,
+;                               int log2_denom, int weightd, int weights,
+;                               int offset);
+; and
+; void h264_weight_16x16_sse2(uint8_t *dst, int stride,
+;                             int log2_denom, int weight,
+;                             int offset);
+;-----------------------------------------------------------------------------
+
+%macro WEIGHT_SETUP 0
+    add        r4, r4
+    inc        r4
+    movd       m3, r3
+    movd       m5, r4
+    movd       m6, r2
+    pslld      m5, m6
+    psrld      m5, 1
+%if mmsize == 16
+    pshuflw    m3, m3, 0
+    pshuflw    m5, m5, 0
+    punpcklqdq m3, m3
+    punpcklqdq m5, m5
+%else
+    pshufw     m3, m3, 0
+    pshufw     m5, m5, 0
+%endif
+    pxor       m7, m7
+%endmacro
+
+%macro WEIGHT_OP 2
+    movh          m0, [r0+%1]
+    movh          m1, [r0+%2]
+    punpcklbw     m0, m7
+    punpcklbw     m1, m7
+    pmullw        m0, m3
+    pmullw        m1, m3
+    paddsw        m0, m5
+    paddsw        m1, m5
+    psraw         m0, m6
+    psraw         m1, m6
+    packuswb      m0, m1
+%endmacro
+
+%macro WEIGHT_FUNC_DBL_MM 1
+cglobal h264_weight_16x%1_mmx2, 5, 5, 0
+    WEIGHT_SETUP
+    mov        r2, %1
+%if %1 == 16
+.nextrow
+    WEIGHT_OP 0,  4
+    mova     [r0  ], m0
+    WEIGHT_OP 8, 12
+    mova     [r0+8], m0
+    add        r0, r1
+    dec        r2
+    jnz .nextrow
+    REP_RET
+%else
+    jmp _ff_h264_weight_16x16_mmx2.nextrow
+%endif
+%endmacro
+
+INIT_MMX
+WEIGHT_FUNC_DBL_MM 16
+WEIGHT_FUNC_DBL_MM  8
+
+%macro WEIGHT_FUNC_MM 4
+cglobal h264_weight_%1x%2_%4, 7, 7, %
+    WEIGHT_SETUP
+    mov        r2, %2
+%if %2 == 16
+.nextrow
+    WEIGHT_OP 0, mmsize/2
+    mova     [r0], m0
+    add        r0, r1
+    dec        r2
+    jnz .nextrow
+    REP_RET
+%else
+    jmp _ff_h264_weight_%1x16_%4.nextrow
+%endif
+%endmacro
+
+INIT_MMX
+WEIGHT_FUNC_MM  8, 16,  0, mmx2
+WEIGHT_FUNC_MM  8,  8,  0, mmx2
+WEIGHT_FUNC_MM  8,  4,  0, mmx2
+INIT_XMM
+WEIGHT_FUNC_MM 16, 16,  8, sse2
+WEIGHT_FUNC_MM 16,  8,  8, sse2
+
+%macro WEIGHT_FUNC_HALF_MM 5
+cglobal h264_weight_%1x%2_%5, 5, 5, %4
+    WEIGHT_SETUP
+    mov        r2, %2/2
+    lea        r3, [r1*2]
+%if %2 == mmsize
+.nextrow
+    WEIGHT_OP 0, r1
+    movh     [r0], m0
+%if mmsize == 16
+    movhps   [r0+r1], m0
+%else
+    psrlq      m0, 32
+    movh     [r0+r1], m0
+%endif
+    add        r0, r3
+    dec        r2
+    jnz .nextrow
+    REP_RET
+%else
+    jmp _ff_h264_weight_%1x%3_%5.nextrow
+%endif
+%endmacro
+
+INIT_MMX
+WEIGHT_FUNC_HALF_MM 4,  8,  8, 0, mmx2
+WEIGHT_FUNC_HALF_MM 4,  4,  8, 0, mmx2
+WEIGHT_FUNC_HALF_MM 4,  2,  8, 0, mmx2
+INIT_XMM
+WEIGHT_FUNC_HALF_MM 8, 16, 16, 8, sse2
+WEIGHT_FUNC_HALF_MM 8,  8, 16, 8, sse2
+WEIGHT_FUNC_HALF_MM 8,  4, 16, 8, sse2
+
+%macro BIWEIGHT_SETUP 0
+    add        r6, 1
+    or         r6, 1
+    add        r3, 1
+    movd       m3, r4
+    movd       m4, r5
+    movd       m5, r6
+    movd       m6, r3
+    pslld      m5, m6
+    psrld      m5, 1
+%if mmsize == 16
+    pshuflw    m3, m3, 0
+    pshuflw    m4, m4, 0
+    pshuflw    m5, m5, 0
+    punpcklqdq m3, m3
+    punpcklqdq m4, m4
+    punpcklqdq m5, m5
+%else
+    pshufw     m3, m3, 0
+    pshufw     m4, m4, 0
+    pshufw     m5, m5, 0
+%endif
+    pxor       m7, m7
+%endmacro
+
+%macro BIWEIGHT_STEPA 3
+    movh       m%1, [r0+%3]
+    movh       m%2, [r1+%3]
+    punpcklbw  m%1, m7
+    punpcklbw  m%2, m7
+    pmullw     m%1, m3
+    pmullw     m%2, m4
+    paddsw     m%1, m%2
+%endmacro
+
+%macro BIWEIGHT_STEPB 0
+    paddsw     m0, m5
+    paddsw     m1, m5
+    psraw      m0, m6
+    psraw      m1, m6
+    packuswb   m0, m1
+%endmacro
+
+%macro BIWEIGHT_FUNC_DBL_MM 1
+cglobal h264_biweight_16x%1_mmx2, 7, 7, 0
+    BIWEIGHT_SETUP
+    mov        r3, %1
+%if %1 == 16
+.nextrow
+    BIWEIGHT_STEPA 0, 1, 0
+    BIWEIGHT_STEPA 1, 2, 4
+    BIWEIGHT_STEPB
+    mova       [r0], m0
+    BIWEIGHT_STEPA 0, 1, 8
+    BIWEIGHT_STEPA 1, 2, 12
+    BIWEIGHT_STEPB
+    mova     [r0+8], m0
+    add        r0, r2
+    add        r1, r2
+    dec        r3
+    jnz .nextrow
+    REP_RET
+%else
+    jmp _ff_h264_biweight_16x16_mmx2.nextrow
+%endif
+%endmacro
+
+INIT_MMX
+BIWEIGHT_FUNC_DBL_MM 16
+BIWEIGHT_FUNC_DBL_MM  8
+
+%macro BIWEIGHT_FUNC_MM 4
+cglobal h264_biweight_%1x%2_%4, 7, 7, %3
+    BIWEIGHT_SETUP
+    mov        r3, %2
+%if %2 == 16
+.nextrow
+    BIWEIGHT_STEPA 0, 1, 0
+    BIWEIGHT_STEPA 1, 2, mmsize/2
+    BIWEIGHT_STEPB
+    mova       [r0], m0
+    add        r0, r2
+    add        r1, r2
+    dec        r3
+    jnz .nextrow
+    REP_RET
+%else
+    jmp _ff_h264_biweight_%1x16_%4.nextrow
+%endif
+%endmacro
+
+INIT_MMX
+BIWEIGHT_FUNC_MM  8, 16,  0, mmx2
+BIWEIGHT_FUNC_MM  8,  8,  0, mmx2
+BIWEIGHT_FUNC_MM  8,  4,  0, mmx2
+INIT_XMM
+BIWEIGHT_FUNC_MM 16, 16,  8, sse2
+BIWEIGHT_FUNC_MM 16,  8,  8, sse2
+
+%macro BIWEIGHT_FUNC_HALF_MM 5
+cglobal h264_biweight_%1x%2_%5, 7, 7, %4
+    BIWEIGHT_SETUP
+    mov        r3, %2/2
+    lea        r4, [r2*2]
+%if %2 == mmsize
+.nextrow
+    BIWEIGHT_STEPA 0, 1, 0
+    BIWEIGHT_STEPA 1, 2, r2
+    BIWEIGHT_STEPB
+    movh       [r0], m0
+%if mmsize == 16
+    movhps     [r0+r2], m0
+%else
+    psrlq      m0, 32
+    movh       [r0+r2], m0
+%endif
+    add        r0, r4
+    add        r1, r4
+    dec        r3
+    jnz .nextrow
+    REP_RET
+%else
+    jmp _ff_h264_biweight_%1x%3_%5.nextrow
+%endif
+%endmacro
+
+INIT_MMX
+BIWEIGHT_FUNC_HALF_MM 4,  8,  8, 0, mmx2
+BIWEIGHT_FUNC_HALF_MM 4,  4,  8, 0, mmx2
+BIWEIGHT_FUNC_HALF_MM 4,  2,  8, 0, mmx2
+INIT_XMM
+BIWEIGHT_FUNC_HALF_MM 8, 16, 16, 8, sse2
+BIWEIGHT_FUNC_HALF_MM 8,  8, 16, 8, sse2
+BIWEIGHT_FUNC_HALF_MM 8,  4, 16, 8, sse2
+
+%macro BIWEIGHT_SSSE3_SETUP 0
+    add        r6, 1
+    or         r6, 1
+    add        r3, 1
+    movd       m4, r4
+    movd       m0, r5
+    movd       m5, r6
+    movd       m6, r3
+    pslld      m5, m6
+    psrld      m5, 1
+    punpcklbw  m4, m0
+    pshuflw    m4, m4, 0
+    pshuflw    m5, m5, 0
+    punpcklqdq m4, m4
+    punpcklqdq m5, m5
+%endmacro
+
+%macro BIWEIGHT_SSSE3_OP 0
+    pmaddubsw  m0, m4
+    pmaddubsw  m2, m4
+    paddsw     m0, m5
+    paddsw     m2, m5
+    psraw      m0, m6
+    psraw      m2, m6
+    packuswb   m0, m2
+%endmacro
+
+%macro BIWEIGHT_SSSE3_16 1
+cglobal h264_biweight_16x%1_ssse3, 7, 7, 8
+    BIWEIGHT_SSSE3_SETUP
+    mov        r3, %1
+
+%if %1 == 16
+.nextrow
+    movh       m0, [r0]
+    movh       m2, [r0+8]
+    movh       m3, [r1+8]
+    punpcklbw  m0, [r1]
+    punpcklbw  m2, m3
+    BIWEIGHT_SSSE3_OP
+    mova       [r0], m0
+    add        r0, r2
+    add        r1, r2
+    dec        r3
+    jnz .nextrow
+    REP_RET
+%else
+    jmp _ff_h264_biweight_16x16_ssse3.nextrow
+%endif
+%endmacro
+
+INIT_XMM
+BIWEIGHT_SSSE3_16 16
+BIWEIGHT_SSSE3_16  8
+
+%macro BIWEIGHT_SSSE3_8 1
+cglobal h264_biweight_8x%1_ssse3, 7, 7, 8
+    BIWEIGHT_SSSE3_SETUP
+    mov        r3, %1/2
+    lea        r4, [r2*2]
+
+%if %1 == 16
+.nextrow
+    movh       m0, [r0]
+    movh       m1, [r1]
+    movh       m2, [r0+r2]
+    movh       m3, [r1+r2]
+    punpcklbw  m0, m1
+    punpcklbw  m2, m3
+    BIWEIGHT_SSSE3_OP
+    movh       [r0], m0
+    movhps     [r0+r2], m0
+    add        r0, r4
+    add        r1, r4
+    dec        r3
+    jnz .nextrow
+    REP_RET
+%else
+    jmp _ff_h264_biweight_8x16_ssse3.nextrow
+%endif
+%endmacro
+
+INIT_XMM
+BIWEIGHT_SSSE3_8 16
+BIWEIGHT_SSSE3_8  8
+BIWEIGHT_SSSE3_8  4