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|
;******************************************************************************
;* Copyright (c) 2012 Michael Niedermayer
;* Copyright (c) 2014 James Almer <jamrial <at> 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
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "libavutil/x86/x86util.asm"
%if ARCH_X86_64
%define pointer resq
%else
%define pointer resd
%endif
struc ResampleContext
.av_class: pointer 1
.filter_bank: pointer 1
.filter_length: resd 1
.filter_alloc: resd 1
.ideal_dst_incr: resd 1
.dst_incr: resd 1
.dst_incr_div: resd 1
.dst_incr_mod: resd 1
.index: resd 1
.frac: resd 1
.src_incr: resd 1
.compensation_distance: resd 1
.phase_shift: resd 1
.phase_mask: resd 1
; there's a few more here but we only care about the first few
endstruc
SECTION_RODATA
pf_1: dd 1.0
SECTION .text
%macro RESAMPLE_FLOAT_FNS 0
; int resample_common_float(ResampleContext *ctx, float *dst,
; const float *src, int size, int update_ctx)
%if ARCH_X86_64 ; unix64 and win64
cglobal resample_common_float, 0, 15, 2, ctx, dst, src, phase_shift, index, frac, \
dst_incr_mod, size, min_filter_count_x4, \
min_filter_len_x4, dst_incr_div, src_incr, \
phase_mask, dst_end, filter_bank
; use red-zone for variable storage
%define ctx_stackq [rsp-0x8]
%define src_stackq [rsp-0x10]
%if WIN64
%define update_context_stackd r4m
%else ; unix64
%define update_context_stackd [rsp-0x14]
%endif
; load as many variables in registers as possible; for the rest, store
; on stack so that we have 'ctx' available as one extra register
mov sized, r3d
mov phase_maskd, [ctxq+ResampleContext.phase_mask]
%if UNIX64
mov update_context_stackd, r4d
%endif
mov indexd, [ctxq+ResampleContext.index]
mov fracd, [ctxq+ResampleContext.frac]
mov dst_incr_modd, [ctxq+ResampleContext.dst_incr_mod]
mov filter_bankq, [ctxq+ResampleContext.filter_bank]
mov src_incrd, [ctxq+ResampleContext.src_incr]
mov ctx_stackq, ctxq
mov min_filter_len_x4d, [ctxq+ResampleContext.filter_length]
mov dst_incr_divd, [ctxq+ResampleContext.dst_incr_div]
shl min_filter_len_x4d, 2
lea dst_endq, [dstq+sizeq*4]
%if UNIX64
mov ecx, [ctxq+ResampleContext.phase_shift]
mov edi, [ctxq+ResampleContext.filter_alloc]
DEFINE_ARGS filter_alloc, dst, src, phase_shift, index, frac, dst_incr_mod, \
filter, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
src_incr, phase_mask, dst_end, filter_bank
%elif WIN64
mov R9d, [ctxq+ResampleContext.filter_alloc]
mov ecx, [ctxq+ResampleContext.phase_shift]
DEFINE_ARGS phase_shift, dst, src, filter_alloc, index, frac, dst_incr_mod, \
filter, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
src_incr, phase_mask, dst_end, filter_bank
%endif
neg min_filter_len_x4q
sub filter_bankq, min_filter_len_x4q
sub srcq, min_filter_len_x4q
mov src_stackq, srcq
%else ; x86-32
cglobal resample_common_float, 1, 7, 2, ctx, phase_shift, dst, frac, \
index, min_filter_length_x4, filter_bank
; push temp variables to stack
%define ctx_stackq r0mp
%define src_stackq r2mp
%define update_context_stackd r4m
mov dstq, r1mp
mov r3, r3mp
lea r3, [dstq+r3*4]
PUSH dword [ctxq+ResampleContext.dst_incr_div]
PUSH dword [ctxq+ResampleContext.dst_incr_mod]
PUSH dword [ctxq+ResampleContext.filter_alloc]
PUSH r3
PUSH dword [ctxq+ResampleContext.phase_mask]
PUSH dword [ctxq+ResampleContext.src_incr]
mov min_filter_length_x4d, [ctxq+ResampleContext.filter_length]
mov indexd, [ctxq+ResampleContext.index]
shl min_filter_length_x4d, 2
mov fracd, [ctxq+ResampleContext.frac]
neg min_filter_length_x4q
mov filter_bankq, [ctxq+ResampleContext.filter_bank]
sub r2mp, min_filter_length_x4q
sub filter_bankq, min_filter_length_x4q
PUSH min_filter_length_x4q
PUSH filter_bankq
mov phase_shiftd, [ctxq+ResampleContext.phase_shift]
DEFINE_ARGS src, phase_shift, dst, frac, index, min_filter_count_x4, filter
%define filter_bankq dword [rsp+0x0]
%define min_filter_length_x4q dword [rsp+0x4]
%define src_incrd dword [rsp+0x8]
%define phase_maskd dword [rsp+0xc]
%define dst_endq dword [rsp+0x10]
%define filter_allocd dword [rsp+0x14]
%define dst_incr_modd dword [rsp+0x18]
%define dst_incr_divd dword [rsp+0x1c]
mov srcq, r2mp
%endif
.loop:
mov filterd, filter_allocd
imul filterd, indexd
%if ARCH_X86_64
mov min_filter_count_x4q, min_filter_len_x4q
lea filterq, [filter_bankq+filterq*4]
%else ; x86-32
mov min_filter_count_x4q, filter_bankq
lea filterq, [min_filter_count_x4q+filterq*4]
mov min_filter_count_x4q, min_filter_length_x4q
%endif
xorps m0, m0, m0
align 16
.inner_loop:
movups m1, [srcq+min_filter_count_x4q*1]
mulps m1, m1, [filterq+min_filter_count_x4q*1]
addps m0, m0, m1
add min_filter_count_x4q, mmsize
js .inner_loop
%if cpuflag(avx)
vextractf128 xm1, m0, 0x1
addps xm0, xm1
%endif
; horizontal sum & store
movhlps xm1, xm0
addps xm0, xm1
shufps xm1, xm0, xm0, q0001
add fracd, dst_incr_modd
addps xm0, xm1
add indexd, dst_incr_divd
movss [dstq], xm0
cmp fracd, src_incrd
jl .skip
sub fracd, src_incrd
inc indexd
%if UNIX64
DEFINE_ARGS filter_alloc, dst, src, phase_shift, index, frac, dst_incr_mod, \
index_incr, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
src_incr, phase_mask, dst_end, filter_bank
%elif WIN64
DEFINE_ARGS phase_shift, dst, src, filter_alloc, index, frac, dst_incr_mod, \
index_incr, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
src_incr, phase_mask, dst_end, filter_bank
%else ; x86-32
DEFINE_ARGS src, phase_shift, dst, frac, index, index_incr
%endif
.skip:
mov index_incrd, indexd
add dstq, 4
and indexd, phase_maskd
sar index_incrd, phase_shiftb
lea srcq, [srcq+index_incrq*4]
cmp dstq, dst_endq
jne .loop
%if ARCH_X86_64
DEFINE_ARGS ctx, dst, src, phase_shift, index, frac
%else ; x86-32
DEFINE_ARGS src, ctx, update_context, frac, index
%endif
cmp dword update_context_stackd, 0
jz .skip_store
; strictly speaking, the function should always return the consumed
; number of bytes; however, we only use the value if update_context
; is true, so let's just leave it uninitialized otherwise
mov ctxq, ctx_stackq
movifnidn rax, srcq
mov [ctxq+ResampleContext.frac ], fracd
sub rax, src_stackq
mov [ctxq+ResampleContext.index], indexd
shr rax, 2
.skip_store:
%if ARCH_X86_32
ADD rsp, 0x20
%endif
RET
; int resample_linear_float(ResampleContext *ctx, float *dst,
; const float *src, int size, int update_ctx)
%if ARCH_X86_64 ; unix64 and win64
cglobal resample_linear_float, 0, 15, 5, ctx, dst, src, phase_shift, index, frac, \
dst_incr_mod, size, min_filter_count_x4, \
min_filter_len_x4, dst_incr_div, src_incr, \
phase_mask, dst_end, filter_bank
; use red-zone for variable storage
%define ctx_stackq [rsp-0x8]
%define src_stackq [rsp-0x10]
%define phase_mask_stackd [rsp-0x14]
%if WIN64
%define update_context_stackd r4m
%else ; unix64
%define update_context_stackd [rsp-0x18]
%endif
; load as many variables in registers as possible; for the rest, store
; on stack so that we have 'ctx' available as one extra register
mov sized, r3d
mov phase_maskd, [ctxq+ResampleContext.phase_mask]
%if UNIX64
mov update_context_stackd, r4d
%endif
mov indexd, [ctxq+ResampleContext.index]
mov fracd, [ctxq+ResampleContext.frac]
mov dst_incr_modd, [ctxq+ResampleContext.dst_incr_mod]
mov filter_bankq, [ctxq+ResampleContext.filter_bank]
mov src_incrd, [ctxq+ResampleContext.src_incr]
mov ctx_stackq, ctxq
mov phase_mask_stackd, phase_maskd
mov min_filter_len_x4d, [ctxq+ResampleContext.filter_length]
cvtsi2ss xm0, src_incrd
movss xm4, [pf_1]
divss xm4, xm0
mov dst_incr_divd, [ctxq+ResampleContext.dst_incr_div]
shl min_filter_len_x4d, 2
lea dst_endq, [dstq+sizeq*4]
%if UNIX64
mov ecx, [ctxq+ResampleContext.phase_shift]
mov edi, [ctxq+ResampleContext.filter_alloc]
DEFINE_ARGS filter_alloc, dst, src, phase_shift, index, frac, dst_incr_mod, \
filter1, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
src_incr, filter2, dst_end, filter_bank
%elif WIN64
mov R9d, [ctxq+ResampleContext.filter_alloc]
mov ecx, [ctxq+ResampleContext.phase_shift]
DEFINE_ARGS phase_shift, dst, src, filter_alloc, index, frac, dst_incr_mod, \
filter1, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
src_incr, filter2, dst_end, filter_bank
%endif
neg min_filter_len_x4q
sub filter_bankq, min_filter_len_x4q
sub srcq, min_filter_len_x4q
mov src_stackq, srcq
%else ; x86-32
cglobal resample_linear_float, 1, 7, 5, ctx, filter1, dst, frac, \
index, min_filter_length_x4, filter_bank
; push temp variables to stack
%define ctx_stackq r0mp
%define src_stackq r2mp
%define update_context_stackd r4m
mov dstq, r1mp
mov r3, r3mp
lea r3, [dstq+r3*4]
PUSH dword [ctxq+ResampleContext.dst_incr_div]
PUSH r3
mov r3, dword [ctxq+ResampleContext.filter_alloc]
PUSH dword [ctxq+ResampleContext.dst_incr_mod]
PUSH r3
shl r3, 2
PUSH r3
mov r3, dword [ctxq+ResampleContext.src_incr]
PUSH dword [ctxq+ResampleContext.phase_mask]
PUSH r3d
cvtsi2ss xm0, r3d
movss xm4, [pf_1]
divss xm4, xm0
mov min_filter_length_x4d, [ctxq+ResampleContext.filter_length]
mov indexd, [ctxq+ResampleContext.index]
shl min_filter_length_x4d, 2
mov fracd, [ctxq+ResampleContext.frac]
neg min_filter_length_x4q
mov filter_bankq, [ctxq+ResampleContext.filter_bank]
sub r2mp, min_filter_length_x4q
sub filter_bankq, min_filter_length_x4q
PUSH min_filter_length_x4q
PUSH filter_bankq
PUSH dword [ctxq+ResampleContext.phase_shift]
DEFINE_ARGS src, filter1, dst, frac, index, min_filter_count_x4, filter2
%define phase_shift_stackd dword [rsp+0x0]
%define filter_bankq dword [rsp+0x4]
%define min_filter_length_x4q dword [rsp+0x8]
%define src_incrd dword [rsp+0xc]
%define phase_mask_stackd dword [rsp+0x10]
%define filter_alloc_x4q dword [rsp+0x14]
%define filter_allocd dword [rsp+0x18]
%define dst_incr_modd dword [rsp+0x1c]
%define dst_endq dword [rsp+0x20]
%define dst_incr_divd dword [rsp+0x24]
mov srcq, r2mp
%endif
.loop:
mov filter1d, filter_allocd
imul filter1d, indexd
%if ARCH_X86_64
mov min_filter_count_x4q, min_filter_len_x4q
lea filter1q, [filter_bankq+filter1q*4]
lea filter2q, [filter1q+filter_allocq*4]
%else ; x86-32
mov min_filter_count_x4q, filter_bankq
lea filter1q, [min_filter_count_x4q+filter1q*4]
mov min_filter_count_x4q, min_filter_length_x4q
mov filter2q, filter1q
add filter2q, filter_alloc_x4q
%endif
xorps m0, m0, m0
xorps m2, m2, m2
align 16
.inner_loop:
movups m1, [srcq+min_filter_count_x4q*1]
mulps m3, m1, [filter2q+min_filter_count_x4q*1]
mulps m1, m1, [filter1q+min_filter_count_x4q*1]
addps m2, m2, m3
addps m0, m0, m1
add min_filter_count_x4q, mmsize
js .inner_loop
%if cpuflag(avx)
vextractf128 xm1, m0, 0x1
vextractf128 xm3, m2, 0x1
addps xm0, xm1
addps xm2, xm3
%endif
; val += (v2 - val) * (FELEML) frac / c->src_incr;
cvtsi2ss xm1, fracd
subps xm2, xm0
mulps xm1, xm4
shufps xm1, xm1, q0000
mulps xm2, xm1
addps xm0, xm2
; horizontal sum & store
movhlps xm1, xm0
addps xm0, xm1
shufps xm1, xm0, xm0, q0001
add fracd, dst_incr_modd
addps xm0, xm1
add indexd, dst_incr_divd
movss [dstq], xm0
cmp fracd, src_incrd
jl .skip
sub fracd, src_incrd
inc indexd
%if UNIX64
DEFINE_ARGS filter_alloc, dst, src, phase_shift, index, frac, dst_incr_mod, \
index_incr, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
src_incr, filter2, dst_end, filter_bank
%elif WIN64
DEFINE_ARGS phase_shift, dst, src, filter_alloc, index, frac, dst_incr_mod, \
index_incr, min_filter_count_x4, min_filter_len_x4, dst_incr_div, \
src_incr, filter2, dst_end, filter_bank
%else ; x86-32
DEFINE_ARGS src, phase_shift, dst, frac, index, index_incr
%endif
.skip:
%if ARCH_X86_32
mov phase_shiftd, phase_shift_stackd
%endif
mov index_incrd, indexd
add dstq, 4
and indexd, phase_mask_stackd
sar index_incrd, phase_shiftb
lea srcq, [srcq+index_incrq*4]
cmp dstq, dst_endq
jne .loop
%if ARCH_X86_64
DEFINE_ARGS ctx, dst, src, phase_shift, index, frac
%else ; x86-32
DEFINE_ARGS src, ctx, update_context, frac, index
%endif
cmp dword update_context_stackd, 0
jz .skip_store
; strictly speaking, the function should always return the consumed
; number of bytes; however, we only use the value if update_context
; is true, so let's just leave it uninitialized otherwise
mov ctxq, ctx_stackq
movifnidn rax, srcq
mov [ctxq+ResampleContext.frac ], fracd
sub rax, src_stackq
mov [ctxq+ResampleContext.index], indexd
shr rax, 2
.skip_store:
%if ARCH_X86_32
ADD rsp, 0x28
%endif
RET
%endmacro
INIT_XMM sse
RESAMPLE_FLOAT_FNS
%if HAVE_AVX_EXTERNAL
INIT_YMM avx
RESAMPLE_FLOAT_FNS
%endif
|
