ref: 11de1b838135307e7c02f7fde82ccd35d9ae4cad
dir: /vpx_dsp/x86/ssim_opt_x86_64.asm/
;
; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
%include "vpx_ports/x86_abi_support.asm"
; tabulate_ssim - sums sum_s,sum_r,sum_sq_s,sum_sq_r, sum_sxr
%macro TABULATE_SSIM 0
paddusw xmm15, xmm3 ; sum_s
paddusw xmm14, xmm4 ; sum_r
movdqa xmm1, xmm3
pmaddwd xmm1, xmm1
paddd xmm13, xmm1 ; sum_sq_s
movdqa xmm2, xmm4
pmaddwd xmm2, xmm2
paddd xmm12, xmm2 ; sum_sq_r
pmaddwd xmm3, xmm4
paddd xmm11, xmm3 ; sum_sxr
%endmacro
; Sum across the register %1 starting with q words
%macro SUM_ACROSS_Q 1
movdqa xmm2,%1
punpckldq %1,xmm0
punpckhdq xmm2,xmm0
paddq %1,xmm2
movdqa xmm2,%1
punpcklqdq %1,xmm0
punpckhqdq xmm2,xmm0
paddq %1,xmm2
%endmacro
; Sum across the register %1 starting with q words
%macro SUM_ACROSS_W 1
movdqa xmm1, %1
punpcklwd %1,xmm0
punpckhwd xmm1,xmm0
paddd %1, xmm1
SUM_ACROSS_Q %1
%endmacro
SECTION .text
;void ssim_parms_sse2(
; unsigned char *s,
; int sp,
; unsigned char *r,
; int rp
; uint32_t *sum_s,
; uint32_t *sum_r,
; uint32_t *sum_sq_s,
; uint32_t *sum_sq_r,
; uint32_t *sum_sxr);
;
; TODO: Use parm passing through structure, probably don't need the pxors
; ( calling app will initialize to 0 ) could easily fit everything in sse2
; without too much hastle, and can probably do better estimates with psadw
; or pavgb At this point this is just meant to be first pass for calculating
; all the parms needed for 16x16 ssim so we can play with dssim as distortion
; in mode selection code.
global sym(vpx_ssim_parms_16x16_sse2) PRIVATE
sym(vpx_ssim_parms_16x16_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 9
SAVE_XMM 15
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;s
mov rcx, arg(1) ;sp
mov rdi, arg(2) ;r
mov rax, arg(3) ;rp
pxor xmm0, xmm0
pxor xmm15,xmm15 ;sum_s
pxor xmm14,xmm14 ;sum_r
pxor xmm13,xmm13 ;sum_sq_s
pxor xmm12,xmm12 ;sum_sq_r
pxor xmm11,xmm11 ;sum_sxr
mov rdx, 16 ;row counter
.NextRow:
;grab source and reference pixels
movdqu xmm5, [rsi]
movdqu xmm6, [rdi]
movdqa xmm3, xmm5
movdqa xmm4, xmm6
punpckhbw xmm3, xmm0 ; high_s
punpckhbw xmm4, xmm0 ; high_r
TABULATE_SSIM
movdqa xmm3, xmm5
movdqa xmm4, xmm6
punpcklbw xmm3, xmm0 ; low_s
punpcklbw xmm4, xmm0 ; low_r
TABULATE_SSIM
add rsi, rcx ; next s row
add rdi, rax ; next r row
dec rdx ; counter
jnz .NextRow
SUM_ACROSS_W xmm15
SUM_ACROSS_W xmm14
SUM_ACROSS_Q xmm13
SUM_ACROSS_Q xmm12
SUM_ACROSS_Q xmm11
mov rdi,arg(4)
movd [rdi], xmm15;
mov rdi,arg(5)
movd [rdi], xmm14;
mov rdi,arg(6)
movd [rdi], xmm13;
mov rdi,arg(7)
movd [rdi], xmm12;
mov rdi,arg(8)
movd [rdi], xmm11;
; begin epilog
pop rdi
pop rsi
RESTORE_XMM
UNSHADOW_ARGS
pop rbp
ret
;void ssim_parms_sse2(
; unsigned char *s,
; int sp,
; unsigned char *r,
; int rp
; uint32_t *sum_s,
; uint32_t *sum_r,
; uint32_t *sum_sq_s,
; uint32_t *sum_sq_r,
; uint32_t *sum_sxr);
;
; TODO: Use parm passing through structure, probably don't need the pxors
; ( calling app will initialize to 0 ) could easily fit everything in sse2
; without too much hastle, and can probably do better estimates with psadw
; or pavgb At this point this is just meant to be first pass for calculating
; all the parms needed for 16x16 ssim so we can play with dssim as distortion
; in mode selection code.
global sym(vpx_ssim_parms_8x8_sse2) PRIVATE
sym(vpx_ssim_parms_8x8_sse2):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 9
SAVE_XMM 15
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;s
mov rcx, arg(1) ;sp
mov rdi, arg(2) ;r
mov rax, arg(3) ;rp
pxor xmm0, xmm0
pxor xmm15,xmm15 ;sum_s
pxor xmm14,xmm14 ;sum_r
pxor xmm13,xmm13 ;sum_sq_s
pxor xmm12,xmm12 ;sum_sq_r
pxor xmm11,xmm11 ;sum_sxr
mov rdx, 8 ;row counter
.NextRow:
;grab source and reference pixels
movq xmm3, [rsi]
movq xmm4, [rdi]
punpcklbw xmm3, xmm0 ; low_s
punpcklbw xmm4, xmm0 ; low_r
TABULATE_SSIM
add rsi, rcx ; next s row
add rdi, rax ; next r row
dec rdx ; counter
jnz .NextRow
SUM_ACROSS_W xmm15
SUM_ACROSS_W xmm14
SUM_ACROSS_Q xmm13
SUM_ACROSS_Q xmm12
SUM_ACROSS_Q xmm11
mov rdi,arg(4)
movd [rdi], xmm15;
mov rdi,arg(5)
movd [rdi], xmm14;
mov rdi,arg(6)
movd [rdi], xmm13;
mov rdi,arg(7)
movd [rdi], xmm12;
mov rdi,arg(8)
movd [rdi], xmm11;
; begin epilog
pop rdi
pop rsi
RESTORE_XMM
UNSHADOW_ARGS
pop rbp
ret