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dct-a.asm
资源名称：chapter15.rar [点击查看]
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上传日期：2021-12-09
资源大小：5084k
文件大小：16k
源码类别：
Audio
开发平台：
Visual C++
- ;*****************************************************************************
- ;* dct.asm: h264 encoder library
- ;*****************************************************************************
- ;* Copyright (C) 2003 x264 project
- ;* $Id: dct.asm,v 1.1 2004/06/03 19:27:07 fenrir Exp $
- ;*
- ;* Authors: Min Chen <chenm001.163.com> (converted to nasm)
- ;* Laurent Aimar <fenrir@via.ecp.fr> (initial version)
- ;*
- ;* This program is free software; you can redistribute it and/or modify
- ;* it under the terms of the GNU General Public License as published by
- ;* the Free Software Foundation; either version 2 of the License, or
- ;* (at your option) any later version.
- ;*
- ;* This program 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 General Public License for more details.
- ;*
- ;* You should have received a copy of the GNU General Public License
- ;* along with this program; if not, write to the Free Software
- ;* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- ;*****************************************************************************
- ;*****************************************************************************
- ;* *
- ;* Revision history: *
- ;* *
- ;* 2004.04.28 portab all 4x4 function to nasm (CM) *
- ;* *
- ;*****************************************************************************
- BITS 64
- ;=============================================================================
- ; Macros and other preprocessor constants
- ;=============================================================================
- %include "amd64inc.asm"
- %macro MMX_ZERO 1
- pxor %1, %1
- %endmacro
- %macro MMX_LOAD_DIFF_4P 5
- movd %1, %4
- punpcklbw %1, %3
- movd %2, %5
- punpcklbw %2, %3
- psubw %1, %2
- %endmacro
- %macro MMX_LOAD_DIFF_8P 5
- movq %1, %4
- punpcklbw %1, %3
- movq %2, %5
- punpcklbw %2, %3
- psubw %1, %2
- %endmacro
- %macro MMX_SUMSUB_BA 2
- paddw %1, %2
- paddw %2, %2
- psubw %2, %1
- %endmacro
- %macro MMX_SUMSUB_BADC 4
- paddw %1, %2
- paddw %3, %4
- paddw %2, %2
- paddw %4, %4
- psubw %2, %1
- psubw %4, %3
- %endmacro
- %macro MMX_SUMSUB2_AB 3
- movq %3, %1
- paddw %1, %1
- paddw %1, %2
- psubw %3, %2
- psubw %3, %2
- %endmacro
- %macro MMX_SUMSUBD2_AB 4
- movq %4, %1
- movq %3, %2
- psraw %2, 1
- psraw %4, 1
- paddw %1, %2
- psubw %4, %3
- %endmacro
- %macro SBUTTERFLY 5
- mov%1 %5, %3
- punpckl%2 %3, %4
- punpckh%2 %5, %4
- %endmacro
- ;-----------------------------------------------------------------------------
- ; input ABCD output ADTC
- ;-----------------------------------------------------------------------------
- %macro MMX_TRANSPOSE 5
- SBUTTERFLY q, wd, %1, %2, %5
- SBUTTERFLY q, wd, %3, %4, %2
- SBUTTERFLY q, dq, %1, %3, %4
- SBUTTERFLY q, dq, %5, %2, %3
- %endmacro
- ;-----------------------------------------------------------------------------
- ; input ABCDEFGH output AFHDTECB
- ;-----------------------------------------------------------------------------
- %macro SSE2_TRANSPOSE8x8 9
- SBUTTERFLY dqa, wd, %1, %2, %9
- SBUTTERFLY dqa, wd, %3, %4, %2
- SBUTTERFLY dqa, wd, %5, %6, %4
- SBUTTERFLY dqa, wd, %7, %8, %6
- SBUTTERFLY dqa, dq, %1, %3, %8
- SBUTTERFLY dqa, dq, %9, %2, %3
- SBUTTERFLY dqa, dq, %5, %7, %2
- SBUTTERFLY dqa, dq, %4, %6, %7
- SBUTTERFLY dqa, qdq, %1, %5, %6
- SBUTTERFLY dqa, qdq, %9, %4, %5
- SBUTTERFLY dqa, qdq, %8, %2, %4
- SBUTTERFLY dqa, qdq, %3, %7, %2
- %endmacro
- %macro MMX_STORE_DIFF_4P 5
- paddw %1, %3
- psraw %1, 6
- movd %2, %5
- punpcklbw %2, %4
- paddsw %1, %2
- packuswb %1, %1
- movd %5, %1
- %endmacro
- %macro MMX_STORE_DIFF_8P 4
- psraw %1, 6
- movq %2, %4
- punpcklbw %2, %3
- paddsw %1, %2
- packuswb %1, %1
- movq %4, %1
- %endmacro
- ;=============================================================================
- ; Constants
- ;=============================================================================
- SECTION .rodata align=16
- pw_1: times 8 dw 1
- pw_32: times 8 dw 32
- ;=============================================================================
- ; Code
- ;=============================================================================
- SECTION .text
- cglobal x264_dct4x4dc_mmxext
- ALIGN 16
- ;-----------------------------------------------------------------------------
- ; void dct4x4dc( int16_t d[4][4] )
- ;-----------------------------------------------------------------------------
- x264_dct4x4dc_mmxext:
- movq mm0, [parm1q+ 0]
- movq mm1, [parm1q+ 8]
- movq mm2, [parm1q+16]
- movq mm3, [parm1q+24]
- MMX_SUMSUB_BADC mm1, mm0, mm3, mm2 ; mm1=s01 mm0=d01 mm3=s23 mm2=d23
- MMX_SUMSUB_BADC mm3, mm1, mm2, mm0 ; mm3=s01+s23 mm1=s01-s23 mm2=d01+d23 mm0=d01-d23
- MMX_TRANSPOSE mm3, mm1, mm0, mm2, mm4 ; in: mm3, mm1, mm0, mm2 out: mm3, mm2, mm4, mm0
- MMX_SUMSUB_BADC mm2, mm3, mm0, mm4 ; mm2=s01 mm3=d01 mm0=s23 mm4=d23
- MMX_SUMSUB_BADC mm0, mm2, mm4, mm3 ; mm0=s01+s23 mm2=s01-s23 mm4=d01+d23 mm3=d01-d23
- MMX_TRANSPOSE mm0, mm2, mm3, mm4, mm1 ; in: mm0, mm2, mm3, mm4 out: mm0, mm4, mm1, mm3
- movq mm6, [pw_1 GLOBAL]
- paddw mm0, mm6
- paddw mm4, mm6
- psraw mm0, 1
- movq [parm1q+ 0],mm0
- psraw mm4, 1
- movq [parm1q+ 8],mm4
- paddw mm1, mm6
- paddw mm3, mm6
- psraw mm1, 1
- movq [parm1q+16],mm1
- psraw mm3, 1
- movq [parm1q+24],mm3
- ret
- cglobal x264_idct4x4dc_mmxext
- ALIGN 16
- ;-----------------------------------------------------------------------------
- ; void x264_idct4x4dc_mmxext( int16_t d[4][4] )
- ;-----------------------------------------------------------------------------
- x264_idct4x4dc_mmxext:
- movq mm0, [parm1q+ 0]
- movq mm1, [parm1q+ 8]
- movq mm2, [parm1q+16]
- movq mm3, [parm1q+24]
- MMX_SUMSUB_BADC mm1, mm0, mm3, mm2 ; mm1=s01 mm0=d01 mm3=s23 mm2=d23
- MMX_SUMSUB_BADC mm3, mm1, mm2, mm0 ; mm3=s01+s23 mm1=s01-s23 mm2=d01+d23 mm0=d01-d23
- MMX_TRANSPOSE mm3, mm1, mm0, mm2, mm4 ; in: mm3, mm1, mm0, mm2 out: mm3, mm2, mm4, mm0
- MMX_SUMSUB_BADC mm2, mm3, mm0, mm4 ; mm2=s01 mm3=d01 mm0=s23 mm4=d23
- MMX_SUMSUB_BADC mm0, mm2, mm4, mm3 ; mm0=s01+s23 mm2=s01-s23 mm4=d01+d23 mm3=d01-d23
- MMX_TRANSPOSE mm0, mm2, mm3, mm4, mm1 ; in: mm0, mm2, mm3, mm4 out: mm0, mm4, mm1, mm3
- movq [parm1q+ 0], mm0
- movq [parm1q+ 8], mm4
- movq [parm1q+16], mm1
- movq [parm1q+24], mm3
- ret
- cglobal x264_sub4x4_dct_mmxext
- ALIGN 16
- ;-----------------------------------------------------------------------------
- ; void x264_sub4x4_dct_mmxext( int16_t dct[4][4], uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2 )
- ;-----------------------------------------------------------------------------
- x264_sub4x4_dct_mmxext:
- firstpush rbx
- pushreg rbx
- endprolog
- mov r10, parm1q ; dct
- mov rax, parm2q ; pix1
- %ifdef WIN64
- mov rcx, parm4q ; pix2
- movsxd rdx, dword [rsp+40+8] ; i_pix2
- movsxd rbx, parm3d ; i_pix1
- %else
- movsxd rbx, parm3d ; i_pix1
- movsxd rdx, parm5d ; i_pix2
- %endif
- MMX_ZERO mm7
- ; Load 4 lines
- MMX_LOAD_DIFF_4P mm0, mm6, mm7, [rax ], [rcx]
- MMX_LOAD_DIFF_4P mm1, mm6, mm7, [rax+rbx ], [rcx+rdx]
- MMX_LOAD_DIFF_4P mm2, mm6, mm7, [rax+rbx*2], [rcx+rdx*2]
- add rax, rbx
- add rcx, rdx
- MMX_LOAD_DIFF_4P mm3, mm6, mm7, [rax+rbx*2], [rcx+rdx*2]
- MMX_SUMSUB_BADC mm3, mm0, mm2, mm1 ; mm3=s03 mm0=d03 mm2=s12 mm1=d12
- MMX_SUMSUB_BA mm2, mm3 ; mm2=s03+s12 mm3=s03-s12
- MMX_SUMSUB2_AB mm0, mm1, mm4 ; mm0=2.d03+d12 mm4=d03-2.d12
- ; transpose in: mm2, mm0, mm3, mm4, out: mm2, mm4, mm1, mm3
- MMX_TRANSPOSE mm2, mm0, mm3, mm4, mm1
- MMX_SUMSUB_BADC mm3, mm2, mm1, mm4 ; mm3=s03 mm2=d03 mm1=s12 mm4=d12
- MMX_SUMSUB_BA mm1, mm3 ; mm1=s03+s12 mm3=s03-s12
- MMX_SUMSUB2_AB mm2, mm4, mm0 ; mm2=2.d03+d12 mm0=d03-2.d12
- ; transpose in: mm1, mm2, mm3, mm0, out: mm1, mm0, mm4, mm3
- MMX_TRANSPOSE mm1, mm2, mm3, mm0, mm4
- movq [r10+ 0], mm1 ; dct
- movq [r10+ 8], mm0
- movq [r10+16], mm4
- movq [r10+24], mm3
- pop rbx
- ret
- endfunc
- cglobal x264_add4x4_idct_mmxext
- ALIGN 16
- ;-----------------------------------------------------------------------------
- ; void x264_add4x4_idct_mmxext( uint8_t *p_dst, int i_dst, int16_t dct[4][4] )
- ;-----------------------------------------------------------------------------
- x264_add4x4_idct_mmxext:
- ; Load dct coeffs
- movq mm0, [parm3q+ 0] ; dct
- movq mm4, [parm3q+ 8]
- movq mm3, [parm3q+16]
- movq mm1, [parm3q+24]
- mov rax, parm1q ; p_dst
- movsxd rcx, parm2d ; i_dst
- lea rdx, [rcx+rcx*2]
- ; out:mm0, mm1, mm2, mm3
- MMX_TRANSPOSE mm0, mm4, mm3, mm1, mm2
- MMX_SUMSUB_BA mm2, mm0 ; mm2=s02 mm0=d02
- MMX_SUMSUBD2_AB mm1, mm3, mm5, mm4 ; mm1=s13 mm4=d13 ( well 1 + 3>>1 and 1>>1 + 3)
- MMX_SUMSUB_BADC mm1, mm2, mm4, mm0 ; mm1=s02+s13 mm2=s02-s13 mm4=d02+d13 mm0=d02-d13
- ; in: mm1, mm4, mm0, mm2 out: mm1, mm2, mm3, mm0
- MMX_TRANSPOSE mm1, mm4, mm0, mm2, mm3
- MMX_SUMSUB_BA mm3, mm1 ; mm3=s02 mm1=d02
- MMX_SUMSUBD2_AB mm2, mm0, mm5, mm4 ; mm2=s13 mm4=d13 ( well 1 + 3>>1 and 1>>1 + 3)
- MMX_SUMSUB_BADC mm2, mm3, mm4, mm1 ; mm2=s02+s13 mm3=s02-s13 mm4=d02+d13 mm1=d02-d13
- MMX_ZERO mm7
- movq mm6, [pw_32 GLOBAL]
- MMX_STORE_DIFF_4P mm2, mm0, mm6, mm7, [rax]
- MMX_STORE_DIFF_4P mm4, mm0, mm6, mm7, [rax+rcx]
- MMX_STORE_DIFF_4P mm1, mm0, mm6, mm7, [rax+rcx*2]
- MMX_STORE_DIFF_4P mm3, mm0, mm6, mm7, [rax+rdx]
- ret
- ; =============================================================================
- ; 8x8 Transform
- ; =============================================================================
- ; in: ABCDEFGH
- ; out: FBCGEDHI
- %macro DCT8_1D 10
- MMX_SUMSUB_BA %8, %1 ; %8=s07, %1=d07
- MMX_SUMSUB_BA %7, %2 ; %7=s16, %2=d16
- MMX_SUMSUB_BA %6, %3 ; %6=s25, %3=d25
- MMX_SUMSUB_BA %5, %4 ; %5=s34, %4=d34
- MMX_SUMSUB_BA %5, %8 ; %5=a0, %8=a2
- MMX_SUMSUB_BA %6, %7 ; %6=a1, %7=a3
- movdqa %9, %1
- psraw %9, 1
- paddw %9, %1
- paddw %9, %2
- paddw %9, %3 ; %9=a4
- movdqa %10, %4
- psraw %10, 1
- paddw %10, %4
- paddw %10, %2
- psubw %10, %3 ; %10=a7
- MMX_SUMSUB_BA %4, %1
- psubw %1, %3
- psubw %4, %2
- psraw %3, 1
- psraw %2, 1
- psubw %1, %3 ; %1=a5
- psubw %4, %2 ; %4=a6
- MMX_SUMSUB_BA %6, %5 ; %6=b0, %5=b4
- movdqa %2, %10
- psraw %2, 2
- paddw %2, %9 ; %2=b1
- psraw %9, 2
- psubw %9, %10 ; %9=b7
- movdqa %3, %7
- psraw %3, 1
- paddw %3, %8 ; %3=b2
- psraw %8, 1
- psubw %8, %7 ; %8=b6
- movdqa %7, %4
- psraw %7, 2
- paddw %7, %1 ; %7=b3
- psraw %1, 2
- psubw %4, %1 ; %4=b5
- %endmacro
- cglobal x264_sub8x8_dct8_sse2
- ALIGN 16
- ;-----------------------------------------------------------------------------
- ; void __cdecl x264_sub8x8_dct8_sse2( int16_t dct[8][8], uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2 )
- ;-----------------------------------------------------------------------------
- x264_sub8x8_dct8_sse2:
- ; mov rdi, rdi ; dct
- ; mov rsi, rsi ; pix1
- movsxd rdx, edx ; i_pix1
- ; mov rcx, rcx ; pix2
- movsxd r8, r8d ; i_pix2
- MMX_ZERO xmm9
- MMX_LOAD_DIFF_8P xmm0, xmm8, xmm9, [rsi ], [rcx]
- MMX_LOAD_DIFF_8P xmm1, xmm8, xmm9, [rsi+rdx ], [rcx+r8]
- MMX_LOAD_DIFF_8P xmm2, xmm8, xmm9, [rsi+rdx*2], [rcx+r8*2]
- lea r9, [rdx+rdx*2]
- lea r10, [r8+r8*2]
- add rsi, r9
- add rcx, r10
- MMX_LOAD_DIFF_8P xmm3, xmm8, xmm9, [rsi ], [rcx]
- MMX_LOAD_DIFF_8P xmm4, xmm8, xmm9, [rsi+rdx ], [rcx+r8]
- MMX_LOAD_DIFF_8P xmm5, xmm8, xmm9, [rsi+rdx*2], [rcx+r8*2]
- MMX_LOAD_DIFF_8P xmm6, xmm8, xmm9, [rsi+r9 ], [rcx+r10]
- MMX_LOAD_DIFF_8P xmm7, xmm8, xmm9, [rsi+rdx*4], [rcx+r8*4]
- SSE2_TRANSPOSE8x8 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8
- DCT8_1D xmm0, xmm5, xmm7, xmm3, xmm8, xmm4, xmm2, xmm1, xmm6, xmm9
- SSE2_TRANSPOSE8x8 xmm4, xmm5, xmm7, xmm2, xmm8, xmm3, xmm1, xmm6, xmm0
- DCT8_1D xmm4, xmm3, xmm6, xmm2, xmm0, xmm8, xmm7, xmm5, xmm1, xmm9
- movdqa [rdi+0x00], xmm8
- movdqa [rdi+0x10], xmm3
- movdqa [rdi+0x20], xmm6
- movdqa [rdi+0x30], xmm7
- movdqa [rdi+0x40], xmm0
- movdqa [rdi+0x50], xmm2
- movdqa [rdi+0x60], xmm5
- movdqa [rdi+0x70], xmm1
- ret
- ; in: ABCDEFGH
- ; out: IBHDEACG
- %macro IDCT8_1D 10
- MMX_SUMSUB_BA %5, %1 ; %5=a0, %1=a2
- movdqa %10, %3
- psraw %3, 1
- psubw %3, %7 ; %3=a4
- psraw %7, 1
- paddw %7, %10 ; %7=a6
- movdqa %9, %2
- psraw %9, 1
- paddw %9, %2
- paddw %9, %4
- paddw %9, %6 ; %9=a7
- movdqa %10, %6
- psraw %10, 1
- paddw %10, %6
- paddw %10, %8
- psubw %10, %2 ; %10=a5
- psubw %2, %4
- psubw %6, %4
- paddw %2, %8
- psubw %6, %8
- psraw %4, 1
- psraw %8, 1
- psubw %2, %4 ; %2=a3
- psubw %6, %8 ; %6=a1
- MMX_SUMSUB_BA %7, %5 ; %7=b0, %5=b6
- MMX_SUMSUB_BA %3, %1 ; %3=b2, %1=b4
- movdqa %4, %9
- psraw %4, 2
- paddw %4, %6 ; %4=b1
- psraw %6, 2
- psubw %9, %6 ; %9=b7
- movdqa %8, %10
- psraw %8, 2
- paddw %8, %2 ; %8=b3
- psraw %2, 2
- psubw %2, %10 ; %2=b5
- MMX_SUMSUB_BA %9, %7 ; %9=c0, %7=c7
- MMX_SUMSUB_BA %2, %3 ; %2=c1, %3=c6
- MMX_SUMSUB_BA %8, %1 ; %8=c2, %1=c5
- MMX_SUMSUB_BA %4, %5 ; %4=c3, %5=c4
- %endmacro
- cglobal x264_add8x8_idct8_sse2
- ALIGN 16
- ;-----------------------------------------------------------------------------
- ; void __cdecl x264_add8x8_idct8_sse2( uint8_t *p_dst, int i_dst, int16_t dct[8][8] )
- ;-----------------------------------------------------------------------------
- x264_add8x8_idct8_sse2:
- movsxd rsi, esi ; i_dst
- movdqa xmm0, [rdx+0x00] ; dct
- movdqa xmm1, [rdx+0x10]
- movdqa xmm2, [rdx+0x20]
- movdqa xmm3, [rdx+0x30]
- movdqa xmm4, [rdx+0x40]
- movdqa xmm5, [rdx+0x50]
- movdqa xmm6, [rdx+0x60]
- movdqa xmm7, [rdx+0x70]
- SSE2_TRANSPOSE8x8 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8
- IDCT8_1D xmm0, xmm5, xmm7, xmm3, xmm8, xmm4, xmm2, xmm1, xmm9, xmm6
- SSE2_TRANSPOSE8x8 xmm9, xmm5, xmm1, xmm3, xmm8, xmm0, xmm7, xmm2, xmm4
- paddw xmm9, [pw_32 GLOBAL] ; rounding for the >>6 at the end
- IDCT8_1D xmm9, xmm0, xmm2, xmm3, xmm4, xmm8, xmm1, xmm5, xmm6, xmm7
- MMX_ZERO xmm15
- MMX_STORE_DIFF_8P xmm6, xmm14, xmm15, [rdi]
- MMX_STORE_DIFF_8P xmm0, xmm14, xmm15, [rdi+rsi]
- MMX_STORE_DIFF_8P xmm5, xmm14, xmm15, [rdi+rsi*2]
- lea rax, [rsi+rsi*2]
- add rdi, rax
- MMX_STORE_DIFF_8P xmm3, xmm14, xmm15, [rdi]
- MMX_STORE_DIFF_8P xmm4, xmm14, xmm15, [rdi+rsi]
- MMX_STORE_DIFF_8P xmm9, xmm14, xmm15, [rdi+rsi*2]
- MMX_STORE_DIFF_8P xmm2, xmm14, xmm15, [rdi+rax]
- MMX_STORE_DIFF_8P xmm1, xmm14, xmm15, [rdi+rsi*4]
- ret
