mirror of https://git.ffmpeg.org/ffmpeg.git
293 lines
8.6 KiB
NASM
293 lines
8.6 KiB
NASM
;******************************************************************************
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;* VC1 motion compensation optimizations
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;* Copyright (c) 2007 Christophe GISQUET <christophe.gisquet@free.fr>
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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cextern pw_9
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cextern pw_128
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SECTION .text
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%if HAVE_MMX_INLINE
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; XXX some of these macros are not used right now, but they will in the future
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; when more functions are ported.
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%macro OP_PUT 2 ; dst, src
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%endmacro
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%macro OP_AVG 2 ; dst, src
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pavgb %1, %2
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%endmacro
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%macro NORMALIZE_MMX 1 ; shift
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paddw m3, m7 ; +bias-r
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paddw m4, m7 ; +bias-r
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psraw m3, %1
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psraw m4, %1
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%endmacro
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%macro TRANSFER_DO_PACK 2 ; op, dst
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packuswb m3, m4
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%1 m3, [%2]
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mova [%2], m3
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%endmacro
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%macro TRANSFER_DONT_PACK 2 ; op, dst
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%1 m3, [%2]
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%1 m3, [%2 + mmsize]
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mova [%2], m3
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mova [mmsize + %2], m4
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%endmacro
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; see MSPEL_FILTER13_CORE for use as UNPACK macro
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%macro DO_UNPACK 1 ; reg
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punpcklbw %1, m0
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%endmacro
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%macro DONT_UNPACK 1 ; reg
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%endmacro
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; Compute the rounder 32-r or 8-r and unpacks it to m7
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%macro LOAD_ROUNDER_MMX 1 ; round
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movd m7, %1
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punpcklwd m7, m7
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punpckldq m7, m7
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%endmacro
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%macro SHIFT2_LINE 5 ; off, r0, r1, r2, r3
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paddw m%3, m%4
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movh m%2, [srcq + stride_neg2]
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pmullw m%3, m6
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punpcklbw m%2, m0
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movh m%5, [srcq + strideq]
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psubw m%3, m%2
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punpcklbw m%5, m0
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paddw m%3, m7
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psubw m%3, m%5
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psraw m%3, shift
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movu [dstq + %1], m%3
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add srcq, strideq
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%endmacro
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INIT_MMX mmx
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; void ff_vc1_put_ver_16b_shift2_mmx(int16_t *dst, const uint8_t *src,
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; x86_reg stride, int rnd, int64_t shift)
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; Sacrificing m6 makes it possible to pipeline loads from src
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%if ARCH_X86_32
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cglobal vc1_put_ver_16b_shift2, 3,6,0, dst, src, stride
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DECLARE_REG_TMP 3, 4, 5
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%define rnd r3mp
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%define shift qword r4m
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%else ; X86_64
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cglobal vc1_put_ver_16b_shift2, 4,7,0, dst, src, stride
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DECLARE_REG_TMP 4, 5, 6
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%define rnd r3d
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; We need shift either in memory or in a mm reg as it's used in psraw
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; On WIN64, the arg is already on the stack
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; On UNIX64, m5 doesn't seem to be used
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%if WIN64
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%define shift r4mp
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%else ; UNIX64
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%define shift m5
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mova shift, r4q
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%endif ; WIN64
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%endif ; X86_32
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%define stride_neg2 t0q
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%define stride_9minus4 t1q
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%define i t2q
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mov stride_neg2, strideq
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neg stride_neg2
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add stride_neg2, stride_neg2
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lea stride_9minus4, [strideq * 9 - 4]
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mov i, 3
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LOAD_ROUNDER_MMX rnd
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mova m6, [pw_9]
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pxor m0, m0
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.loop:
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movh m2, [srcq]
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add srcq, strideq
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movh m3, [srcq]
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punpcklbw m2, m0
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punpcklbw m3, m0
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SHIFT2_LINE 0, 1, 2, 3, 4
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SHIFT2_LINE 24, 2, 3, 4, 1
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SHIFT2_LINE 48, 3, 4, 1, 2
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SHIFT2_LINE 72, 4, 1, 2, 3
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SHIFT2_LINE 96, 1, 2, 3, 4
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SHIFT2_LINE 120, 2, 3, 4, 1
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SHIFT2_LINE 144, 3, 4, 1, 2
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SHIFT2_LINE 168, 4, 1, 2, 3
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sub srcq, stride_9minus4
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add dstq, 8
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dec i
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jnz .loop
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REP_RET
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%undef rnd
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%undef shift
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%undef stride_neg2
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%undef stride_9minus4
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%undef i
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; void ff_vc1_*_hor_16b_shift2_mmx(uint8_t *dst, x86_reg stride,
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; const int16_t *src, int rnd);
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; Data is already unpacked, so some operations can directly be made from
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; memory.
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%macro HOR_16B_SHIFT2 2 ; op, opname
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cglobal vc1_%2_hor_16b_shift2, 4, 5, 0, dst, stride, src, rnd, h
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mov hq, 8
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sub srcq, 2
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sub rndd, (-1+9+9-1) * 1024 ; add -1024 bias
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LOAD_ROUNDER_MMX rndd
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mova m5, [pw_9]
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mova m6, [pw_128]
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pxor m0, m0
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.loop:
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mova m1, [srcq + 2 * 0]
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mova m2, [srcq + 2 * 0 + mmsize]
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mova m3, [srcq + 2 * 1]
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mova m4, [srcq + 2 * 1 + mmsize]
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paddw m3, [srcq + 2 * 2]
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paddw m4, [srcq + 2 * 2 + mmsize]
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paddw m1, [srcq + 2 * 3]
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paddw m2, [srcq + 2 * 3 + mmsize]
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pmullw m3, m5
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pmullw m4, m5
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psubw m3, m1
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psubw m4, m2
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NORMALIZE_MMX 7
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; remove bias
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paddw m3, m6
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paddw m4, m6
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TRANSFER_DO_PACK %1, dstq
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add srcq, 24
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add dstq, strideq
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dec hq
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jnz .loop
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RET
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%endmacro
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INIT_MMX mmx
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HOR_16B_SHIFT2 OP_PUT, put
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INIT_MMX mmxext
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HOR_16B_SHIFT2 OP_AVG, avg
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%endif ; HAVE_MMX_INLINE
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%macro INV_TRANS_INIT 0
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movsxdifnidn linesizeq, linesized
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movd m0, blockd
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SPLATW m0, m0
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pxor m1, m1
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psubw m1, m0
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packuswb m0, m0
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packuswb m1, m1
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DEFINE_ARGS dest, linesize, linesize3
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lea linesize3q, [linesizeq*3]
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%endmacro
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%macro INV_TRANS_PROCESS 1
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mov%1 m2, [destq+linesizeq*0]
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mov%1 m3, [destq+linesizeq*1]
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mov%1 m4, [destq+linesizeq*2]
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mov%1 m5, [destq+linesize3q]
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paddusb m2, m0
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paddusb m3, m0
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paddusb m4, m0
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paddusb m5, m0
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psubusb m2, m1
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psubusb m3, m1
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psubusb m4, m1
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psubusb m5, m1
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mov%1 [linesizeq*0+destq], m2
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mov%1 [linesizeq*1+destq], m3
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mov%1 [linesizeq*2+destq], m4
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mov%1 [linesize3q +destq], m5
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%endmacro
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; ff_vc1_inv_trans_?x?_dc_mmxext(uint8_t *dest, ptrdiff_t linesize, int16_t *block)
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INIT_MMX mmxext
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cglobal vc1_inv_trans_4x4_dc, 3,4,0, dest, linesize, block
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movsx r3d, WORD [blockq]
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mov blockd, r3d ; dc
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shl blockd, 4 ; 16 * dc
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lea blockd, [blockq+r3+4] ; 17 * dc + 4
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sar blockd, 3 ; >> 3
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mov r3d, blockd ; dc
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shl blockd, 4 ; 16 * dc
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lea blockd, [blockq+r3+64] ; 17 * dc + 64
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sar blockd, 7 ; >> 7
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INV_TRANS_INIT
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INV_TRANS_PROCESS h
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RET
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INIT_MMX mmxext
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cglobal vc1_inv_trans_4x8_dc, 3,4,0, dest, linesize, block
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movsx r3d, WORD [blockq]
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mov blockd, r3d ; dc
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shl blockd, 4 ; 16 * dc
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lea blockd, [blockq+r3+4] ; 17 * dc + 4
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sar blockd, 3 ; >> 3
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shl blockd, 2 ; 4 * dc
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lea blockd, [blockq*3+64] ; 12 * dc + 64
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sar blockd, 7 ; >> 7
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INV_TRANS_INIT
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INV_TRANS_PROCESS h
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lea destq, [destq+linesizeq*4]
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INV_TRANS_PROCESS h
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RET
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INIT_MMX mmxext
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cglobal vc1_inv_trans_8x4_dc, 3,4,0, dest, linesize, block
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movsx blockd, WORD [blockq] ; dc
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lea blockd, [blockq*3+1] ; 3 * dc + 1
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sar blockd, 1 ; >> 1
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mov r3d, blockd ; dc
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shl blockd, 4 ; 16 * dc
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lea blockd, [blockq+r3+64] ; 17 * dc + 64
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sar blockd, 7 ; >> 7
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INV_TRANS_INIT
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INV_TRANS_PROCESS a
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RET
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INIT_MMX mmxext
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cglobal vc1_inv_trans_8x8_dc, 3,3,0, dest, linesize, block
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movsx blockd, WORD [blockq] ; dc
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lea blockd, [blockq*3+1] ; 3 * dc + 1
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sar blockd, 1 ; >> 1
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lea blockd, [blockq*3+16] ; 3 * dc + 16
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sar blockd, 5 ; >> 5
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INV_TRANS_INIT
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INV_TRANS_PROCESS a
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lea destq, [destq+linesizeq*4]
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INV_TRANS_PROCESS a
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RET
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