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FFmpeg/libavcodec/x86/h264_idct.asm
Diego Biurrun 55519926ef x86: Make function prototype comments in assembly code consistent 
This helps grepping for functions, among other things.
2014-03-13 05:50:29 -07:00

1084 lines
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;*****************************************************************************
;* MMX/SSE2-optimized H.264 iDCT
;*****************************************************************************
;* Copyright (C) 2004-2005 Michael Niedermayer, Loren Merritt
;* Copyright (C) 2003-2008 x264 project
;*
;* Authors: Laurent Aimar <fenrir@via.ecp.fr>
;* Loren Merritt <lorenm@u.washington.edu>
;* Holger Lubitz <hal@duncan.ol.sub.de>
;* Min Chen <chenm001.163.com>
;*
;* This file is part of Libav.
;*
;* Libav 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.
;*
;* Libav 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 Libav; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;*****************************************************************************
%include "libavutil/x86/x86util.asm"
SECTION_RODATA
scan8_mem: db 4+ 1*8, 5+ 1*8, 4+ 2*8, 5+ 2*8
db 6+ 1*8, 7+ 1*8, 6+ 2*8, 7+ 2*8
db 4+ 3*8, 5+ 3*8, 4+ 4*8, 5+ 4*8
db 6+ 3*8, 7+ 3*8, 6+ 4*8, 7+ 4*8
db 4+ 6*8, 5+ 6*8, 4+ 7*8, 5+ 7*8
db 6+ 6*8, 7+ 6*8, 6+ 7*8, 7+ 7*8
db 4+ 8*8, 5+ 8*8, 4+ 9*8, 5+ 9*8
db 6+ 8*8, 7+ 8*8, 6+ 9*8, 7+ 9*8
db 4+11*8, 5+11*8, 4+12*8, 5+12*8
db 6+11*8, 7+11*8, 6+12*8, 7+12*8
db 4+13*8, 5+13*8, 4+14*8, 5+14*8
db 6+13*8, 7+13*8, 6+14*8, 7+14*8
%ifdef PIC
%define npicregs 1
%define scan8 picregq
%else
%define npicregs 0
%define scan8 scan8_mem
%endif
cextern pw_32
cextern pw_1
SECTION .text
; %1=uint8_t *dst, %2=int16_t *block, %3=int stride
%macro IDCT4_ADD 3
; Load dct coeffs
movq m0, [%2]
movq m1, [%2+8]
movq m2, [%2+16]
movq m3, [%2+24]
IDCT4_1D w, 0, 1, 2, 3, 4, 5
mova m6, [pw_32]
TRANSPOSE4x4W 0, 1, 2, 3, 4
paddw m0, m6
IDCT4_1D w, 0, 1, 2, 3, 4, 5
pxor m7, m7
movq [%2+ 0], m7
movq [%2+ 8], m7
movq [%2+16], m7
movq [%2+24], m7
STORE_DIFFx2 m0, m1, m4, m5, m7, 6, %1, %3
lea %1, [%1+%3*2]
STORE_DIFFx2 m2, m3, m4, m5, m7, 6, %1, %3
%endmacro
INIT_MMX mmx
; void ff_h264_idct_add_8_mmx(uint8_t *dst, int16_t *block, int stride)
cglobal h264_idct_add_8, 3, 3, 0
IDCT4_ADD r0, r1, r2
RET
%macro IDCT8_1D 2
mova m0, m1
psraw m1, 1
mova m4, m5
psraw m4, 1
paddw m4, m5
paddw m1, m0
paddw m4, m7
paddw m1, m5
psubw m4, m0
paddw m1, m3
psubw m0, m3
psubw m5, m3
psraw m3, 1
paddw m0, m7
psubw m5, m7
psraw m7, 1
psubw m0, m3
psubw m5, m7
mova m7, m1
psraw m1, 2
mova m3, m4
psraw m3, 2
paddw m3, m0
psraw m0, 2
paddw m1, m5
psraw m5, 2
psubw m0, m4
psubw m7, m5
mova m5, m6
psraw m6, 1
mova m4, m2
psraw m4, 1
paddw m6, m2
psubw m4, m5
mova m2, %1
mova m5, %2
SUMSUB_BA w, 5, 2
SUMSUB_BA w, 6, 5
SUMSUB_BA w, 4, 2
SUMSUB_BA w, 7, 6
SUMSUB_BA w, 0, 4
SUMSUB_BA w, 3, 2
SUMSUB_BA w, 1, 5
SWAP 7, 6, 4, 5, 2, 3, 1, 0 ; 70315246 -> 01234567
%endmacro
%macro IDCT8_1D_FULL 1
mova m7, [%1+112]
mova m6, [%1+ 96]
mova m5, [%1+ 80]
mova m3, [%1+ 48]
mova m2, [%1+ 32]
mova m1, [%1+ 16]
IDCT8_1D [%1], [%1+ 64]
%endmacro
; %1=int16_t *block, %2=int16_t *dstblock
%macro IDCT8_ADD_MMX_START 2
IDCT8_1D_FULL %1
mova [%1], m7
TRANSPOSE4x4W 0, 1, 2, 3, 7
mova m7, [%1]
mova [%2 ], m0
mova [%2+16], m1
mova [%2+32], m2
mova [%2+48], m3
TRANSPOSE4x4W 4, 5, 6, 7, 3
mova [%2+ 8], m4
mova [%2+24], m5
mova [%2+40], m6
mova [%2+56], m7
%endmacro
; %1=uint8_t *dst, %2=int16_t *block, %3=int stride
%macro IDCT8_ADD_MMX_END 3-4
IDCT8_1D_FULL %2
mova [%2 ], m5
mova [%2+16], m6
mova [%2+32], m7
pxor m7, m7
%if %0 == 4
movq [%4+ 0], m7
movq [%4+ 8], m7
movq [%4+ 16], m7
movq [%4+ 24], m7
movq [%4+ 32], m7
movq [%4+ 40], m7
movq [%4+ 48], m7
movq [%4+ 56], m7
movq [%4+ 64], m7
movq [%4+ 72], m7
movq [%4+ 80], m7
movq [%4+ 88], m7
movq [%4+ 96], m7
movq [%4+104], m7
movq [%4+112], m7
movq [%4+120], m7
%endif
STORE_DIFFx2 m0, m1, m5, m6, m7, 6, %1, %3
lea %1, [%1+%3*2]
STORE_DIFFx2 m2, m3, m5, m6, m7, 6, %1, %3
mova m0, [%2 ]
mova m1, [%2+16]
mova m2, [%2+32]
lea %1, [%1+%3*2]
STORE_DIFFx2 m4, m0, m5, m6, m7, 6, %1, %3
lea %1, [%1+%3*2]
STORE_DIFFx2 m1, m2, m5, m6, m7, 6, %1, %3
%endmacro
INIT_MMX mmx
; void ff_h264_idct8_add_8_mmx(uint8_t *dst, int16_t *block, int stride)
cglobal h264_idct8_add_8, 3, 4, 0
%assign pad 128+4-(stack_offset&7)
SUB rsp, pad
add word [r1], 32
IDCT8_ADD_MMX_START r1 , rsp
IDCT8_ADD_MMX_START r1+8, rsp+64
lea r3, [r0+4]
IDCT8_ADD_MMX_END r0 , rsp, r2, r1
IDCT8_ADD_MMX_END r3 , rsp+8, r2
ADD rsp, pad
RET
; %1=uint8_t *dst, %2=int16_t *block, %3=int stride
%macro IDCT8_ADD_SSE 4
IDCT8_1D_FULL %2
%if ARCH_X86_64
TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, 8
%else
TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, [%2], [%2+16]
%endif
paddw m0, [pw_32]
%if ARCH_X86_64 == 0
mova [%2 ], m0
mova [%2+16], m4
IDCT8_1D [%2], [%2+ 16]
mova [%2 ], m6
mova [%2+16], m7
%else
SWAP 0, 8
SWAP 4, 9
IDCT8_1D m8, m9
SWAP 6, 8
SWAP 7, 9
%endif
pxor m7, m7
lea %4, [%3*3]
STORE_DIFF m0, m6, m7, [%1 ]
STORE_DIFF m1, m6, m7, [%1+%3 ]
STORE_DIFF m2, m6, m7, [%1+%3*2]
STORE_DIFF m3, m6, m7, [%1+%4 ]
%if ARCH_X86_64 == 0
mova m0, [%2 ]
mova m1, [%2+16]
%else
SWAP 0, 8
SWAP 1, 9
%endif
mova [%2+ 0], m7
mova [%2+ 16], m7
mova [%2+ 32], m7
mova [%2+ 48], m7
mova [%2+ 64], m7
mova [%2+ 80], m7
mova [%2+ 96], m7
mova [%2+112], m7
lea %1, [%1+%3*4]
STORE_DIFF m4, m6, m7, [%1 ]
STORE_DIFF m5, m6, m7, [%1+%3 ]
STORE_DIFF m0, m6, m7, [%1+%3*2]
STORE_DIFF m1, m6, m7, [%1+%4 ]
%endmacro
INIT_XMM sse2
; void ff_h264_idct8_add_8_sse2(uint8_t *dst, int16_t *block, int stride)
cglobal h264_idct8_add_8, 3, 4, 10
IDCT8_ADD_SSE r0, r1, r2, r3
RET
%macro DC_ADD_MMXEXT_INIT 2
add %1, 32
sar %1, 6
movd m0, %1d
lea %1, [%2*3]
pshufw m0, m0, 0
pxor m1, m1
psubw m1, m0
packuswb m0, m0
packuswb m1, m1
%endmacro
%macro DC_ADD_MMXEXT_OP 4
%1 m2, [%2 ]
%1 m3, [%2+%3 ]
%1 m4, [%2+%3*2]
%1 m5, [%2+%4 ]
paddusb m2, m0
paddusb m3, m0
paddusb m4, m0
paddusb m5, m0
psubusb m2, m1
psubusb m3, m1
psubusb m4, m1
psubusb m5, m1
%1 [%2 ], m2
%1 [%2+%3 ], m3
%1 [%2+%3*2], m4
%1 [%2+%4 ], m5
%endmacro
INIT_MMX mmxext
; void ff_h264_idct_dc_add_8_mmxext(uint8_t *dst, int16_t *block, int stride)
%if ARCH_X86_64
cglobal h264_idct_dc_add_8, 3, 4, 0
movsx r3, word [r1]
mov dword [r1], 0
DC_ADD_MMXEXT_INIT r3, r2
DC_ADD_MMXEXT_OP movh, r0, r2, r3
RET
; void ff_h264_idct8_dc_add_8_mmxext(uint8_t *dst, int16_t *block, int stride)
cglobal h264_idct8_dc_add_8, 3, 4, 0
movsx r3, word [r1]
mov dword [r1], 0
DC_ADD_MMXEXT_INIT r3, r2
DC_ADD_MMXEXT_OP mova, r0, r2, r3
lea r0, [r0+r2*4]
DC_ADD_MMXEXT_OP mova, r0, r2, r3
RET
%else
; void ff_h264_idct_dc_add_8_mmxext(uint8_t *dst, int16_t *block, int stride)
cglobal h264_idct_dc_add_8, 2, 3, 0
movsx r2, word [r1]
mov dword [r1], 0
mov r1, r2m
DC_ADD_MMXEXT_INIT r2, r1
DC_ADD_MMXEXT_OP movh, r0, r1, r2
RET
; void ff_h264_idct8_dc_add_8_mmxext(uint8_t *dst, int16_t *block, int stride)
cglobal h264_idct8_dc_add_8, 2, 3, 0
movsx r2, word [r1]
mov dword [r1], 0
mov r1, r2m
DC_ADD_MMXEXT_INIT r2, r1
DC_ADD_MMXEXT_OP mova, r0, r1, r2
lea r0, [r0+r1*4]
DC_ADD_MMXEXT_OP mova, r0, r1, r2
RET
%endif
INIT_MMX mmx
; void ff_h264_idct_add16_8_mmx(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add16_8, 5, 7 + npicregs, 0, dst, block_offset, block, stride, nnzc, cntr, coeff, picreg
xor r5, r5
%ifdef PIC
lea picregq, [scan8_mem]
%endif
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
test r6, r6
jz .skipblock
mov r6d, dword [r1+r5*4]
lea r6, [r0+r6]
IDCT4_ADD r6, r2, r3
.skipblock:
inc r5
add r2, 32
cmp r5, 16
jl .nextblock
REP_RET
; void ff_h264_idct8_add4_8_mmx(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct8_add4_8, 5, 7 + npicregs, 0, dst, block_offset, block, stride, nnzc, cntr, coeff, picreg
%assign pad 128+4-(stack_offset&7)
SUB rsp, pad
xor r5, r5
%ifdef PIC
lea picregq, [scan8_mem]
%endif
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
test r6, r6
jz .skipblock
mov r6d, dword [r1+r5*4]
add r6, r0
add word [r2], 32
IDCT8_ADD_MMX_START r2 , rsp
IDCT8_ADD_MMX_START r2+8, rsp+64
IDCT8_ADD_MMX_END r6 , rsp, r3, r2
mov r6d, dword [r1+r5*4]
lea r6, [r0+r6+4]
IDCT8_ADD_MMX_END r6 , rsp+8, r3
.skipblock:
add r5, 4
add r2, 128
cmp r5, 16
jl .nextblock
ADD rsp, pad
RET
INIT_MMX mmxext
; void ff_h264_idct_add16_8_mmxext(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add16_8, 5, 8 + npicregs, 0, dst1, block_offset, block, stride, nnzc, cntr, coeff, dst2, picreg
xor r5, r5
%ifdef PIC
lea picregq, [scan8_mem]
%endif
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
test r6, r6
jz .skipblock
cmp r6, 1
jnz .no_dc
movsx r6, word [r2]
test r6, r6
jz .no_dc
mov word [r2], 0
DC_ADD_MMXEXT_INIT r6, r3
%if ARCH_X86_64 == 0
%define dst2q r1
%define dst2d r1d
%endif
mov dst2d, dword [r1+r5*4]
lea dst2q, [r0+dst2q]
DC_ADD_MMXEXT_OP movh, dst2q, r3, r6
%if ARCH_X86_64 == 0
mov r1, r1m
%endif
inc r5
add r2, 32
cmp r5, 16
jl .nextblock
REP_RET
.no_dc:
mov r6d, dword [r1+r5*4]
add r6, r0
IDCT4_ADD r6, r2, r3
.skipblock:
inc r5
add r2, 32
cmp r5, 16
jl .nextblock
REP_RET
INIT_MMX mmx
; void ff_h264_idct_add16intra_8_mmx(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add16intra_8, 5, 7 + npicregs, 0, dst, block_offset, block, stride, nnzc, cntr, coeff, picreg
xor r5, r5
%ifdef PIC
lea picregq, [scan8_mem]
%endif
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
or r6w, word [r2]
test r6, r6
jz .skipblock
mov r6d, dword [r1+r5*4]
add r6, r0
IDCT4_ADD r6, r2, r3
.skipblock:
inc r5
add r2, 32
cmp r5, 16
jl .nextblock
REP_RET
INIT_MMX mmxext
; void ff_h264_idct_add16intra_8_mmxext(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add16intra_8, 5, 8 + npicregs, 0, dst1, block_offset, block, stride, nnzc, cntr, coeff, dst2, picreg
xor r5, r5
%ifdef PIC
lea picregq, [scan8_mem]
%endif
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
test r6, r6
jz .try_dc
mov r6d, dword [r1+r5*4]
lea r6, [r0+r6]
IDCT4_ADD r6, r2, r3
inc r5
add r2, 32
cmp r5, 16
jl .nextblock
REP_RET
.try_dc:
movsx r6, word [r2]
test r6, r6
jz .skipblock
mov word [r2], 0
DC_ADD_MMXEXT_INIT r6, r3
%if ARCH_X86_64 == 0
%define dst2q r1
%define dst2d r1d
%endif
mov dst2d, dword [r1+r5*4]
add dst2q, r0
DC_ADD_MMXEXT_OP movh, dst2q, r3, r6
%if ARCH_X86_64 == 0
mov r1, r1m
%endif
.skipblock:
inc r5
add r2, 32
cmp r5, 16
jl .nextblock
REP_RET
; void ff_h264_idct8_add4_8_mmxext(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct8_add4_8, 5, 8 + npicregs, 0, dst1, block_offset, block, stride, nnzc, cntr, coeff, dst2, picreg
%assign pad 128+4-(stack_offset&7)
SUB rsp, pad
xor r5, r5
%ifdef PIC
lea picregq, [scan8_mem]
%endif
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
test r6, r6
jz .skipblock
cmp r6, 1
jnz .no_dc
movsx r6, word [r2]
test r6, r6
jz .no_dc
mov word [r2], 0
DC_ADD_MMXEXT_INIT r6, r3
%if ARCH_X86_64 == 0
%define dst2q r1
%define dst2d r1d
%endif
mov dst2d, dword [r1+r5*4]
lea dst2q, [r0+dst2q]
DC_ADD_MMXEXT_OP mova, dst2q, r3, r6
lea dst2q, [dst2q+r3*4]
DC_ADD_MMXEXT_OP mova, dst2q, r3, r6
%if ARCH_X86_64 == 0
mov r1, r1m
%endif
add r5, 4
add r2, 128
cmp r5, 16
jl .nextblock
ADD rsp, pad
RET
.no_dc:
mov r6d, dword [r1+r5*4]
add r6, r0
add word [r2], 32
IDCT8_ADD_MMX_START r2 , rsp
IDCT8_ADD_MMX_START r2+8, rsp+64
IDCT8_ADD_MMX_END r6 , rsp, r3, r2
mov r6d, dword [r1+r5*4]
lea r6, [r0+r6+4]
IDCT8_ADD_MMX_END r6 , rsp+8, r3
.skipblock:
add r5, 4
add r2, 128
cmp r5, 16
jl .nextblock
ADD rsp, pad
RET
INIT_XMM sse2
; void ff_h264_idct8_add4_8_sse2(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct8_add4_8, 5, 8 + npicregs, 10, dst1, block_offset, block, stride, nnzc, cntr, coeff, dst2, picreg
xor r5, r5
%ifdef PIC
lea picregq, [scan8_mem]
%endif
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
test r6, r6
jz .skipblock
cmp r6, 1
jnz .no_dc
movsx r6, word [r2]
test r6, r6
jz .no_dc
INIT_MMX cpuname
mov word [r2], 0
DC_ADD_MMXEXT_INIT r6, r3
%if ARCH_X86_64 == 0
%define dst2q r1
%define dst2d r1d
%endif
mov dst2d, dword [r1+r5*4]
add dst2q, r0
DC_ADD_MMXEXT_OP mova, dst2q, r3, r6
lea dst2q, [dst2q+r3*4]
DC_ADD_MMXEXT_OP mova, dst2q, r3, r6
%if ARCH_X86_64 == 0
mov r1, r1m
%endif
add r5, 4
add r2, 128
cmp r5, 16
jl .nextblock
REP_RET
.no_dc:
INIT_XMM cpuname
mov dst2d, dword [r1+r5*4]
add dst2q, r0
IDCT8_ADD_SSE dst2q, r2, r3, r6
%if ARCH_X86_64 == 0
mov r1, r1m
%endif
.skipblock:
add r5, 4
add r2, 128
cmp r5, 16
jl .nextblock
REP_RET
INIT_MMX mmx
h264_idct_add8_mmx_plane:
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
or r6w, word [r2]
test r6, r6
jz .skipblock
%if ARCH_X86_64
mov r0d, dword [r1+r5*4]
add r0, [dst2q]
%else
mov r0, r1m ; XXX r1m here is actually r0m of the calling func
mov r0, [r0]
add r0, dword [r1+r5*4]
%endif
IDCT4_ADD r0, r2, r3
.skipblock:
inc r5
add r2, 32
test r5, 3
jnz .nextblock
rep ret
; void ff_h264_idct_add8_8_mmx(uint8_t **dest, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add8_8, 5, 8 + npicregs, 0, dst1, block_offset, block, stride, nnzc, cntr, coeff, dst2, picreg
mov r5, 16
add r2, 512
%ifdef PIC
lea picregq, [scan8_mem]
%endif
%if ARCH_X86_64
mov dst2q, r0
%endif
call h264_idct_add8_mmx_plane
mov r5, 32
add r2, 384
%if ARCH_X86_64
add dst2q, gprsize
%else
add r0mp, gprsize
%endif
call h264_idct_add8_mmx_plane
RET
h264_idct_add8_mmxext_plane:
.nextblock:
movzx r6, byte [scan8+r5]
movzx r6, byte [r4+r6]
test r6, r6
jz .try_dc
%if ARCH_X86_64
mov r0d, dword [r1+r5*4]
add r0, [dst2q]
%else
mov r0, r1m ; XXX r1m here is actually r0m of the calling func
mov r0, [r0]
add r0, dword [r1+r5*4]
%endif
IDCT4_ADD r0, r2, r3
inc r5
add r2, 32
test r5, 3
jnz .nextblock
rep ret
.try_dc:
movsx r6, word [r2]
test r6, r6
jz .skipblock
mov word [r2], 0
DC_ADD_MMXEXT_INIT r6, r3
%if ARCH_X86_64
mov r0d, dword [r1+r5*4]
add r0, [dst2q]
%else
mov r0, r1m ; XXX r1m here is actually r0m of the calling func
mov r0, [r0]
add r0, dword [r1+r5*4]
%endif
DC_ADD_MMXEXT_OP movh, r0, r3, r6
.skipblock:
inc r5
add r2, 32
test r5, 3
jnz .nextblock
rep ret
INIT_MMX mmxext
; void ff_h264_idct_add8_8_mmxext(uint8_t **dest, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add8_8, 5, 8 + npicregs, 0, dst1, block_offset, block, stride, nnzc, cntr, coeff, dst2, picreg
mov r5, 16
add r2, 512
%if ARCH_X86_64
mov dst2q, r0
%endif
%ifdef PIC
lea picregq, [scan8_mem]
%endif
call h264_idct_add8_mmxext_plane
mov r5, 32
add r2, 384
%if ARCH_X86_64
add dst2q, gprsize
%else
add r0mp, gprsize
%endif
call h264_idct_add8_mmxext_plane
RET
; r0 = uint8_t *dst, r2 = int16_t *block, r3 = int stride, r6=clobbered
h264_idct_dc_add8_mmxext:
movd m0, [r2 ] ; 0 0 X D
mov word [r2+ 0], 0
punpcklwd m0, [r2+32] ; x X d D
mov word [r2+32], 0
paddsw m0, [pw_32]
psraw m0, 6
punpcklwd m0, m0 ; d d D D
pxor m1, m1 ; 0 0 0 0
psubw m1, m0 ; -d-d-D-D
packuswb m0, m1 ; -d-d-D-D d d D D
pshufw m1, m0, 0xFA ; -d-d-d-d-D-D-D-D
punpcklwd m0, m0 ; d d d d D D D D
lea r6, [r3*3]
DC_ADD_MMXEXT_OP movq, r0, r3, r6
ret
ALIGN 16
INIT_XMM sse2
; r0 = uint8_t *dst (clobbered), r2 = int16_t *block, r3 = int stride
h264_add8x4_idct_sse2:
movq m0, [r2+ 0]
movq m1, [r2+ 8]
movq m2, [r2+16]
movq m3, [r2+24]
movhps m0, [r2+32]
movhps m1, [r2+40]
movhps m2, [r2+48]
movhps m3, [r2+56]
IDCT4_1D w,0,1,2,3,4,5
TRANSPOSE2x4x4W 0,1,2,3,4
paddw m0, [pw_32]
IDCT4_1D w,0,1,2,3,4,5
pxor m7, m7
mova [r2+ 0], m7
mova [r2+16], m7
mova [r2+32], m7
mova [r2+48], m7
STORE_DIFFx2 m0, m1, m4, m5, m7, 6, r0, r3
lea r0, [r0+r3*2]
STORE_DIFFx2 m2, m3, m4, m5, m7, 6, r0, r3
ret
%macro add16_sse2_cycle 2
movzx r0, word [r4+%2]
test r0, r0
jz .cycle%1end
mov r0d, dword [r1+%1*8]
%if ARCH_X86_64
add r0, r5
%else
add r0, r0m
%endif
call h264_add8x4_idct_sse2
.cycle%1end:
%if %1 < 7
add r2, 64
%endif
%endmacro
; void ff_h264_idct_add16_8_sse2(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add16_8, 5, 5 + ARCH_X86_64, 8
%if ARCH_X86_64
mov r5, r0
%endif
; unrolling of the loop leads to an average performance gain of
; 20-25%
add16_sse2_cycle 0, 0xc
add16_sse2_cycle 1, 0x14
add16_sse2_cycle 2, 0xe
add16_sse2_cycle 3, 0x16
add16_sse2_cycle 4, 0x1c
add16_sse2_cycle 5, 0x24
add16_sse2_cycle 6, 0x1e
add16_sse2_cycle 7, 0x26
RET
%macro add16intra_sse2_cycle 2
movzx r0, word [r4+%2]
test r0, r0
jz .try%1dc
mov r0d, dword [r1+%1*8]
%if ARCH_X86_64
add r0, r7
%else
add r0, r0m
%endif
call h264_add8x4_idct_sse2
jmp .cycle%1end
.try%1dc:
movsx r0, word [r2 ]
or r0w, word [r2+32]
jz .cycle%1end
mov r0d, dword [r1+%1*8]
%if ARCH_X86_64
add r0, r7
%else
add r0, r0m
%endif
call h264_idct_dc_add8_mmxext
.cycle%1end:
%if %1 < 7
add r2, 64
%endif
%endmacro
; void ff_h264_idct_add16intra_8_sse2(uint8_t *dst, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add16intra_8, 5, 7 + ARCH_X86_64, 8
%if ARCH_X86_64
mov r7, r0
%endif
add16intra_sse2_cycle 0, 0xc
add16intra_sse2_cycle 1, 0x14
add16intra_sse2_cycle 2, 0xe
add16intra_sse2_cycle 3, 0x16
add16intra_sse2_cycle 4, 0x1c
add16intra_sse2_cycle 5, 0x24
add16intra_sse2_cycle 6, 0x1e
add16intra_sse2_cycle 7, 0x26
RET
%macro add8_sse2_cycle 2
movzx r0, word [r4+%2]
test r0, r0
jz .try%1dc
%if ARCH_X86_64
mov r0d, dword [r1+(%1&1)*8+64*(1+(%1>>1))]
add r0, [r7]
%else
mov r0, r0m
mov r0, [r0]
add r0, dword [r1+(%1&1)*8+64*(1+(%1>>1))]
%endif
call h264_add8x4_idct_sse2
jmp .cycle%1end
.try%1dc:
movsx r0, word [r2 ]
or r0w, word [r2+32]
jz .cycle%1end
%if ARCH_X86_64
mov r0d, dword [r1+(%1&1)*8+64*(1+(%1>>1))]
add r0, [r7]
%else
mov r0, r0m
mov r0, [r0]
add r0, dword [r1+(%1&1)*8+64*(1+(%1>>1))]
%endif
call h264_idct_dc_add8_mmxext
.cycle%1end:
%if %1 == 1
add r2, 384+64
%elif %1 < 3
add r2, 64
%endif
%endmacro
; void ff_h264_idct_add8_8_sse2(uint8_t **dest, const int *block_offset,
; int16_t *block, int stride,
; const uint8_t nnzc[6 * 8])
cglobal h264_idct_add8_8, 5, 7 + ARCH_X86_64, 8
add r2, 512
%if ARCH_X86_64
mov r7, r0
%endif
add8_sse2_cycle 0, 0x34
add8_sse2_cycle 1, 0x3c
%if ARCH_X86_64
add r7, gprsize
%else
add r0mp, gprsize
%endif
add8_sse2_cycle 2, 0x5c
add8_sse2_cycle 3, 0x64
RET
;void ff_h264_luma_dc_dequant_idct_mmx(int16_t *output, int16_t *input, int qmul)
%macro WALSH4_1D 5
SUMSUB_BADC w, %4, %3, %2, %1, %5
SUMSUB_BADC w, %4, %2, %3, %1, %5
SWAP %1, %4, %3
%endmacro
%macro DEQUANT_MMX 3
mova m7, [pw_1]
mova m4, %1
punpcklwd %1, m7
punpckhwd m4, m7
mova m5, %2
punpcklwd %2, m7
punpckhwd m5, m7
movd m7, t3d
punpckldq m7, m7
pmaddwd %1, m7
pmaddwd %2, m7
pmaddwd m4, m7
pmaddwd m5, m7
psrad %1, %3
psrad %2, %3
psrad m4, %3
psrad m5, %3
packssdw %1, m4
packssdw %2, m5
%endmacro
%macro STORE_WORDS 5-9
%if cpuflag(sse)
movd t0d, %1
psrldq %1, 4
movd t1d, %1
psrldq %1, 4
mov [t2+%2*32], t0w
mov [t2+%4*32], t1w
shr t0d, 16
shr t1d, 16
mov [t2+%3*32], t0w
mov [t2+%5*32], t1w
movd t0d, %1
psrldq %1, 4
movd t1d, %1
mov [t2+%6*32], t0w
mov [t2+%8*32], t1w
shr t0d, 16
shr t1d, 16
mov [t2+%7*32], t0w
mov [t2+%9*32], t1w
%else
movd t0d, %1
psrlq %1, 32
movd t1d, %1
mov [t2+%2*32], t0w
mov [t2+%4*32], t1w
shr t0d, 16
shr t1d, 16
mov [t2+%3*32], t0w
mov [t2+%5*32], t1w
%endif
%endmacro
%macro DEQUANT_STORE 1
%if cpuflag(sse2)
movd xmm4, t3d
movq xmm5, [pw_1]
pshufd xmm4, xmm4, 0
movq2dq xmm0, m0
movq2dq xmm1, m1
movq2dq xmm2, m2
movq2dq xmm3, m3
punpcklwd xmm0, xmm5
punpcklwd xmm1, xmm5
punpcklwd xmm2, xmm5
punpcklwd xmm3, xmm5
pmaddwd xmm0, xmm4
pmaddwd xmm1, xmm4
pmaddwd xmm2, xmm4
pmaddwd xmm3, xmm4
psrad xmm0, %1
psrad xmm1, %1
psrad xmm2, %1
psrad xmm3, %1
packssdw xmm0, xmm1
packssdw xmm2, xmm3
STORE_WORDS xmm0, 0, 1, 4, 5, 2, 3, 6, 7
STORE_WORDS xmm2, 8, 9, 12, 13, 10, 11, 14, 15
%else
DEQUANT_MMX m0, m1, %1
STORE_WORDS m0, 0, 1, 4, 5
STORE_WORDS m1, 2, 3, 6, 7
DEQUANT_MMX m2, m3, %1
STORE_WORDS m2, 8, 9, 12, 13
STORE_WORDS m3, 10, 11, 14, 15
%endif
%endmacro
%macro IDCT_DC_DEQUANT 1
cglobal h264_luma_dc_dequant_idct, 3, 4, %1
; manually spill XMM registers for Win64 because
; the code here is initialized with INIT_MMX
WIN64_SPILL_XMM %1
movq m3, [r1+24]
movq m2, [r1+16]
movq m1, [r1+ 8]
movq m0, [r1+ 0]
WALSH4_1D 0,1,2,3,4
TRANSPOSE4x4W 0,1,2,3,4
WALSH4_1D 0,1,2,3,4
; shift, tmp, output, qmul
%if WIN64
DECLARE_REG_TMP 0,3,1,2
; we can't avoid this, because r0 is the shift register (ecx) on win64
xchg r0, t2
%elif ARCH_X86_64
DECLARE_REG_TMP 3,1,0,2
%else
DECLARE_REG_TMP 1,3,0,2
%endif
cmp t3d, 32767
jg .big_qmul
add t3d, 128 << 16
DEQUANT_STORE 8
RET
.big_qmul:
bsr t0d, t3d
add t3d, 128 << 16
mov t1d, 7
cmp t0d, t1d
cmovg t0d, t1d
inc t1d
shr t3d, t0b
sub t1d, t0d
%if cpuflag(sse2)
movd xmm6, t1d
DEQUANT_STORE xmm6
%else
movd m6, t1d
DEQUANT_STORE m6
%endif
RET
%endmacro
INIT_MMX mmx
IDCT_DC_DEQUANT 0
INIT_MMX sse2
IDCT_DC_DEQUANT 7
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