0b721db543
New code is 10% faster for 64-bit and 25% faster for 32-bit. Compiled using clang. Change-Id: I8ba1544c30dd6f3ca479db806384317549650dfc
212 lines
5.4 KiB
NASM
212 lines
5.4 KiB
NASM
;
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; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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;
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; Use of this source code is governed by a BSD-style license
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; that can be found in the LICENSE file in the root of the source
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; tree. An additional intellectual property rights grant can be found
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; in the file PATENTS. All contributing project authors may
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; be found in the AUTHORS file in the root of the source tree.
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;
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%include "vpx_ports/x86_abi_support.asm"
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;unsigned int vp9_get_mb_ss_sse2
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;(
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; short *src_ptr
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;)
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global sym(vp9_get_mb_ss_sse2) PRIVATE
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sym(vp9_get_mb_ss_sse2):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 1
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GET_GOT rbx
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push rsi
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push rdi
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sub rsp, 16
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; end prolog
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mov rax, arg(0) ;[src_ptr]
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mov rcx, 8
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pxor xmm4, xmm4
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.NEXTROW:
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movdqa xmm0, [rax]
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movdqa xmm1, [rax+16]
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movdqa xmm2, [rax+32]
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movdqa xmm3, [rax+48]
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pmaddwd xmm0, xmm0
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pmaddwd xmm1, xmm1
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pmaddwd xmm2, xmm2
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pmaddwd xmm3, xmm3
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paddd xmm0, xmm1
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paddd xmm2, xmm3
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paddd xmm4, xmm0
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paddd xmm4, xmm2
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add rax, 0x40
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dec rcx
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ja .NEXTROW
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movdqa xmm3,xmm4
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psrldq xmm4,8
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paddd xmm4,xmm3
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movdqa xmm3,xmm4
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psrldq xmm4,4
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paddd xmm4,xmm3
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movq rax,xmm4
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; begin epilog
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add rsp, 16
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pop rdi
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pop rsi
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RESTORE_GOT
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UNSHADOW_ARGS
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pop rbp
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ret
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;unsigned int vp9_get16x16var_sse2
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;(
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; unsigned char * src_ptr,
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; int source_stride,
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; unsigned char * ref_ptr,
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; int recon_stride,
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; unsigned int * SSE,
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; int * Sum
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;)
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global sym(vp9_get16x16var_sse2) PRIVATE
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sym(vp9_get16x16var_sse2):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 6
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SAVE_XMM 7
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push rbx
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push rsi
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push rdi
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; end prolog
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mov rsi, arg(0) ;[src_ptr]
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mov rdi, arg(2) ;[ref_ptr]
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movsxd rax, DWORD PTR arg(1) ;[source_stride]
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movsxd rdx, DWORD PTR arg(3) ;[recon_stride]
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; Prefetch data
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lea rcx, [rax+rax*2]
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prefetcht0 [rsi]
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prefetcht0 [rsi+rax]
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prefetcht0 [rsi+rax*2]
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prefetcht0 [rsi+rcx]
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lea rbx, [rsi+rax*4]
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prefetcht0 [rbx]
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prefetcht0 [rbx+rax]
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prefetcht0 [rbx+rax*2]
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prefetcht0 [rbx+rcx]
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lea rcx, [rdx+rdx*2]
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prefetcht0 [rdi]
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prefetcht0 [rdi+rdx]
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prefetcht0 [rdi+rdx*2]
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prefetcht0 [rdi+rcx]
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lea rbx, [rdi+rdx*4]
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prefetcht0 [rbx]
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prefetcht0 [rbx+rdx]
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prefetcht0 [rbx+rdx*2]
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prefetcht0 [rbx+rcx]
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pxor xmm0, xmm0 ; clear xmm0 for unpack
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pxor xmm7, xmm7 ; clear xmm7 for accumulating diffs
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pxor xmm6, xmm6 ; clear xmm6 for accumulating sse
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mov rcx, 16
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.var16loop:
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movdqu xmm1, XMMWORD PTR [rsi]
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movdqu xmm2, XMMWORD PTR [rdi]
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prefetcht0 [rsi+rax*8]
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prefetcht0 [rdi+rdx*8]
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movdqa xmm3, xmm1
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movdqa xmm4, xmm2
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punpcklbw xmm1, xmm0
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punpckhbw xmm3, xmm0
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punpcklbw xmm2, xmm0
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punpckhbw xmm4, xmm0
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psubw xmm1, xmm2
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psubw xmm3, xmm4
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paddw xmm7, xmm1
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pmaddwd xmm1, xmm1
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paddw xmm7, xmm3
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pmaddwd xmm3, xmm3
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paddd xmm6, xmm1
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paddd xmm6, xmm3
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add rsi, rax
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add rdi, rdx
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sub rcx, 1
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jnz .var16loop
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movdqa xmm1, xmm6
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pxor xmm6, xmm6
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pxor xmm5, xmm5
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punpcklwd xmm6, xmm7
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punpckhwd xmm5, xmm7
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psrad xmm5, 16
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psrad xmm6, 16
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paddd xmm6, xmm5
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movdqa xmm2, xmm1
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punpckldq xmm1, xmm0
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punpckhdq xmm2, xmm0
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movdqa xmm7, xmm6
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paddd xmm1, xmm2
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punpckldq xmm6, xmm0
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punpckhdq xmm7, xmm0
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paddd xmm6, xmm7
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movdqa xmm2, xmm1
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movdqa xmm7, xmm6
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psrldq xmm1, 8
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psrldq xmm6, 8
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paddd xmm7, xmm6
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paddd xmm1, xmm2
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mov rax, arg(5) ;[Sum]
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mov rdi, arg(4) ;[SSE]
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movd DWORD PTR [rax], xmm7
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movd DWORD PTR [rdi], xmm1
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; begin epilog
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pop rdi
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pop rsi
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pop rbx
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RESTORE_XMM
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UNSHADOW_ARGS
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pop rbp
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ret
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