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;*****************************************************************************
;* MMX/SSE2/AVX-optimized 10-bit H.264 chroma MC code
;*****************************************************************************
;* Copyright (C) 2005-2011 x264 project
;*
;* Authors: Daniel Kang <daniel.d.kang@gmail.com>
;*
;* 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 "x86inc.asm"
%include "x86util.asm"
SECTION_RODATA
cextern pw_4
cextern pw_8
cextern pw_32
cextern pw_64
SECTION .text
%macro MV0_PIXELS_MC8 0
lea r4, [r2*3 ]
lea r5, [r2*4 ]
.next4rows
movu m0, [r1 ]
movu m1, [r1+r2 ]
CHROMAMC_AVG m0, [r0 ]
CHROMAMC_AVG m1, [r0+r2 ]
mova [r0 ], m0
mova [r0+r2 ], m1
movu m0, [r1+r2*2]
movu m1, [r1+r4 ]
CHROMAMC_AVG m0, [r0+r2*2]
CHROMAMC_AVG m1, [r0+r4 ]
mova [r0+r2*2], m0
mova [r0+r4 ], m1
add r1, r5
add r0, r5
sub r3d, 4
jne .next4rows
%endmacro
;-----------------------------------------------------------------------------
; void put/avg_h264_chroma_mc8(pixel *dst, pixel *src, int stride, int h, int mx, int my)
;-----------------------------------------------------------------------------
%macro CHROMA_MC8 2
; put/avg_h264_chroma_mc8_*(uint8_t *dst /*align 8*/, uint8_t *src /*align 1*/,
; int stride, int h, int mx, int my)
cglobal %1_h264_chroma_mc8_10_%2, 6,7,8
movsxdifnidn r2, r2d
mov r6d, r5d
or r6d, r4d
jne .at_least_one_non_zero
; mx == 0 AND my == 0 - no filter needed
MV0_PIXELS_MC8
REP_RET
.at_least_one_non_zero
mov r6d, 2
test r5d, r5d
je .x_interpolation
mov r6, r2 ; dxy = x ? 1 : stride
test r4d, r4d
jne .xy_interpolation
.x_interpolation
; mx == 0 XOR my == 0 - 1 dimensional filter only
or r4d, r5d ; x + y
movd m5, r4d
mova m4, [pw_8]
mova m6, [pw_4] ; mm6 = rnd >> 3
SPLATW m5, m5 ; mm5 = B = x
psubw m4, m5 ; mm4 = A = 8-x
.next1drow
movu m0, [r1 ] ; mm0 = src[0..7]
movu m2, [r1+r6] ; mm2 = src[1..8]
pmullw m0, m4 ; mm0 = A * src[0..7]
pmullw m2, m5 ; mm2 = B * src[1..8]
paddw m0, m6
paddw m0, m2
psrlw m0, 3
CHROMAMC_AVG m0, [r0]
mova [r0], m0 ; dst[0..7] = (A * src[0..7] + B * src[1..8] + (rnd >> 3)) >> 3
add r0, r2
add r1, r2
dec r3d
jne .next1drow
REP_RET
.xy_interpolation ; general case, bilinear
movd m4, r4m ; x
movd m6, r5m ; y
SPLATW m4, m4 ; mm4 = x words
SPLATW m6, m6 ; mm6 = y words
psllw m5, m4, 3 ; mm5 = 8x
pmullw m4, m6 ; mm4 = x * y
psllw m6, 3 ; mm6 = 8y
paddw m1, m5, m6 ; mm7 = 8x+8y
mova m7, m4 ; DD = x * y
psubw m5, m4 ; mm5 = B = 8x - xy
psubw m6, m4 ; mm6 = C = 8y - xy
paddw m4, [pw_64]
psubw m4, m1 ; mm4 = A = xy - (8x+8y) + 64
movu m0, [r1 ] ; mm0 = src[0..7]
movu m1, [r1+2] ; mm1 = src[1..8]
.next2drow
add r1, r2
pmullw m2, m0, m4
pmullw m1, m5
paddw m2, m1 ; mm2 = A * src[0..7] + B * src[1..8]
movu m0, [r1]
movu m1, [r1+2]
pmullw m3, m0, m6
paddw m2, m3 ; mm2 += C * src[0..7+strde]
pmullw m3, m1, m7
paddw m2, m3 ; mm2 += D * src[1..8+strde]
paddw m2, [pw_32]
psrlw m2, 6
CHROMAMC_AVG m2, [r0]
mova [r0], m2 ; dst[0..7] = (mm2 + 32) >> 6
add r0, r2
dec r3d
jne .next2drow
REP_RET
%endmacro
;-----------------------------------------------------------------------------
; void put/avg_h264_chroma_mc4(pixel *dst, pixel *src, int stride, int h, int mx, int my)
;-----------------------------------------------------------------------------
;TODO: xmm mc4
%macro MC4_OP 2
movq %1, [r1 ]
movq m1, [r1+2]
add r1, r2
pmullw %1, m4
pmullw m1, m2
paddw m1, %1
mova %1, m1
pmullw %2, m5
pmullw m1, m3
paddw %2, [pw_32]
paddw m1, %2
psrlw m1, 6
CHROMAMC_AVG m1, %2, [r0]
movq [r0], m1
add r0, r2
%endmacro
%macro CHROMA_MC4 2
cglobal %1_h264_chroma_mc4_10_%2, 6,6,7
movsxdifnidn r2, r2d
movd m2, r4m ; x
movd m3, r5m ; y
mova m4, [pw_8]
mova m5, m4
SPLATW m2, m2
SPLATW m3, m3
psubw m4, m2
psubw m5, m3
movq m0, [r1 ]
movq m6, [r1+2]
add r1, r2
pmullw m0, m4
pmullw m6, m2
paddw m6, m0
.next2rows
MC4_OP m0, m6
MC4_OP m6, m0
sub r3d, 2
jnz .next2rows
REP_RET
%endmacro
;-----------------------------------------------------------------------------
; void put/avg_h264_chroma_mc2(pixel *dst, pixel *src, int stride, int h, int mx, int my)
;-----------------------------------------------------------------------------
%macro CHROMA_MC2 2
cglobal %1_h264_chroma_mc2_10_%2, 6,7
movsxdifnidn r2, r2d
mov r6d, r4d
shl r4d, 16
sub r4d, r6d
add r4d, 8
imul r5d, r4d ; x*y<<16 | y*(8-x)
shl r4d, 3
sub r4d, r5d ; x*(8-y)<<16 | (8-x)*(8-y)
movd m5, r4d
movd m6, r5d
punpckldq m5, m5 ; mm5 = {A,B,A,B}
punpckldq m6, m6 ; mm6 = {C,D,C,D}
pxor m7, m7
pshufw m2, [r1], 0x94 ; mm0 = src[0,1,1,2]
.nextrow
add r1, r2
movq m1, m2
pmaddwd m1, m5 ; mm1 = A * src[0,1] + B * src[1,2]
pshufw m0, [r1], 0x94 ; mm0 = src[0,1,1,2]
movq m2, m0
pmaddwd m0, m6
paddw m1, [pw_32]
paddw m1, m0 ; mm1 += C * src[0,1] + D * src[1,2]
psrlw m1, 6
packssdw m1, m7
CHROMAMC_AVG m1, m3, [r0]
movd [r0], m1
add r0, r2
dec r3d
jnz .nextrow
REP_RET
%endmacro
%macro NOTHING 2-3
%endmacro
%macro AVG 2-3
%if %0==3
movq %2, %3
%endif
PAVG %1, %2
%endmacro
%define CHROMAMC_AVG NOTHING
INIT_XMM
CHROMA_MC8 put, sse2
%ifdef HAVE_AVX
INIT_AVX
CHROMA_MC8 put, avx
%endif
INIT_MMX
CHROMA_MC4 put, mmxext
CHROMA_MC2 put, mmxext
%define CHROMAMC_AVG AVG
%define PAVG pavgw
INIT_XMM
CHROMA_MC8 avg, sse2
%ifdef HAVE_AVX
INIT_AVX
CHROMA_MC8 avg, avx
%endif
INIT_MMX
CHROMA_MC4 avg, mmxext
CHROMA_MC2 avg, mmxext
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