mirror of https://git.ffmpeg.org/ffmpeg.git
754 lines
24 KiB
NASM
754 lines
24 KiB
NASM
;******************************************************************************
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;* MMX/SSE2-optimized functions for the VP3 decoder
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;* Copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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; MMX-optimized functions cribbed from the original VP3 source code.
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SECTION_RODATA
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vp3_idct_data: times 8 dw 64277
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times 8 dw 60547
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times 8 dw 54491
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times 8 dw 46341
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times 8 dw 36410
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times 8 dw 25080
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times 8 dw 12785
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pb_7: times 8 db 0x07
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pb_1F: times 8 db 0x1f
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pb_81: times 8 db 0x81
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cextern pb_1
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cextern pb_3
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cextern pb_80
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cextern pb_FE
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cextern pw_8
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SECTION .text
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; this is off by one or two for some cases when filter_limit is greater than 63
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; in: p0 in mm6, p1 in mm4, p2 in mm2, p3 in mm1
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; out: p1 in mm4, p2 in mm3
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%macro VP3_LOOP_FILTER 0
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movq m7, m6
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pand m6, [pb_7] ; p0&7
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psrlw m7, 3
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pand m7, [pb_1F] ; p0>>3
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movq m3, m2 ; p2
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pxor m2, m4
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pand m2, [pb_1] ; (p2^p1)&1
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movq m5, m2
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paddb m2, m2
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paddb m2, m5 ; 3*(p2^p1)&1
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paddb m2, m6 ; extra bits lost in shifts
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pcmpeqb m0, m0
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pxor m1, m0 ; 255 - p3
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pavgb m1, m2 ; (256 - p3 + extrabits) >> 1
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pxor m0, m4 ; 255 - p1
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pavgb m0, m3 ; (256 + p2-p1) >> 1
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paddb m1, [pb_3]
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pavgb m1, m0 ; 128+2+( p2-p1 - p3) >> 2
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pavgb m1, m0 ; 128+1+(3*(p2-p1) - p3) >> 3
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paddusb m7, m1 ; d+128+1
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movq m6, [pb_81]
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psubusb m6, m7
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psubusb m7, [pb_81]
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movq m5, [r2+516] ; flim
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pminub m6, m5
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pminub m7, m5
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movq m0, m6
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movq m1, m7
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paddb m6, m6
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paddb m7, m7
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pminub m6, m5
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pminub m7, m5
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psubb m6, m0
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psubb m7, m1
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paddusb m4, m7
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psubusb m4, m6
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psubusb m3, m7
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paddusb m3, m6
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%endmacro
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%macro STORE_4_WORDS 1
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movd r2d, %1
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mov [r0 -1], r2w
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psrlq %1, 32
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shr r2, 16
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mov [r0+r1 -1], r2w
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movd r2d, %1
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mov [r0+r1*2-1], r2w
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shr r2, 16
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mov [r0+r3 -1], r2w
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%endmacro
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INIT_MMX mmxext
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cglobal vp3_v_loop_filter, 3, 4
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%if ARCH_X86_64
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movsxd r1, r1d
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%endif
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mov r3, r1
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neg r1
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movq m6, [r0+r1*2]
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movq m4, [r0+r1 ]
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movq m2, [r0 ]
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movq m1, [r0+r3 ]
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VP3_LOOP_FILTER
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movq [r0+r1], m4
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movq [r0 ], m3
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RET
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cglobal vp3_h_loop_filter, 3, 4
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%if ARCH_X86_64
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movsxd r1, r1d
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%endif
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lea r3, [r1*3]
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movd m6, [r0 -2]
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movd m4, [r0+r1 -2]
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movd m2, [r0+r1*2-2]
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movd m1, [r0+r3 -2]
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lea r0, [r0+r1*4 ]
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punpcklbw m6, [r0 -2]
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punpcklbw m4, [r0+r1 -2]
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punpcklbw m2, [r0+r1*2-2]
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punpcklbw m1, [r0+r3 -2]
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sub r0, r3
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sub r0, r1
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TRANSPOSE4x4B 6, 4, 2, 1, 0
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VP3_LOOP_FILTER
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SBUTTERFLY bw, 4, 3, 5
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STORE_4_WORDS m4
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lea r0, [r0+r1*4 ]
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STORE_4_WORDS m3
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RET
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%macro PAVGB_NO_RND 0
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mova m4, m0
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mova m5, m2
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pand m4, m1
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pand m5, m3
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pxor m1, m0
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pxor m3, m2
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pand m1, m6
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pand m3, m6
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psrlq m1, 1
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psrlq m3, 1
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paddb m4, m1
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paddb m5, m3
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%endmacro
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INIT_MMX mmx
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cglobal put_vp_no_rnd_pixels8_l2, 5, 6, 0, dst, src1, src2, stride, h, stride3
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mova m6, [pb_FE]
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lea stride3q,[strideq+strideq*2]
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.loop:
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mova m0, [src1q]
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mova m1, [src2q]
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mova m2, [src1q+strideq]
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mova m3, [src2q+strideq]
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PAVGB_NO_RND
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mova [dstq], m4
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mova [dstq+strideq], m5
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mova m0, [src1q+strideq*2]
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mova m1, [src2q+strideq*2]
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mova m2, [src1q+stride3q]
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mova m3, [src2q+stride3q]
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PAVGB_NO_RND
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mova [dstq+strideq*2], m4
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mova [dstq+stride3q], m5
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lea src1q, [src1q+strideq*4]
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lea src2q, [src2q+strideq*4]
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lea dstq, [dstq+strideq*4]
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sub hd, 4
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jnz .loop
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RET
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; from original comments: The Macro does IDct on 4 1-D Dcts
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%macro BeginIDCT 0
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movq m2, I(3)
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movq m6, C(3)
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movq m4, m2
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movq m7, J(5)
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pmulhw m4, m6 ; r4 = c3*i3 - i3
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movq m1, C(5)
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pmulhw m6, m7 ; r6 = c3*i5 - i5
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movq m5, m1
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pmulhw m1, m2 ; r1 = c5*i3 - i3
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movq m3, I(1)
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pmulhw m5, m7 ; r5 = c5*i5 - i5
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movq m0, C(1)
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paddw m4, m2 ; r4 = c3*i3
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paddw m6, m7 ; r6 = c3*i5
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paddw m2, m1 ; r2 = c5*i3
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movq m1, J(7)
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paddw m7, m5 ; r7 = c5*i5
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movq m5, m0 ; r5 = c1
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pmulhw m0, m3 ; r0 = c1*i1 - i1
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paddsw m4, m7 ; r4 = C = c3*i3 + c5*i5
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pmulhw m5, m1 ; r5 = c1*i7 - i7
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movq m7, C(7)
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psubsw m6, m2 ; r6 = D = c3*i5 - c5*i3
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paddw m0, m3 ; r0 = c1*i1
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pmulhw m3, m7 ; r3 = c7*i1
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movq m2, I(2)
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pmulhw m7, m1 ; r7 = c7*i7
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paddw m5, m1 ; r5 = c1*i7
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movq m1, m2 ; r1 = i2
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pmulhw m2, C(2) ; r2 = c2*i2 - i2
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psubsw m3, m5 ; r3 = B = c7*i1 - c1*i7
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movq m5, J(6)
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paddsw m0, m7 ; r0 = A = c1*i1 + c7*i7
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movq m7, m5 ; r7 = i6
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psubsw m0, m4 ; r0 = A - C
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pmulhw m5, C(2) ; r5 = c2*i6 - i6
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paddw m2, m1 ; r2 = c2*i2
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pmulhw m1, C(6) ; r1 = c6*i2
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paddsw m4, m4 ; r4 = C + C
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paddsw m4, m0 ; r4 = C. = A + C
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psubsw m3, m6 ; r3 = B - D
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paddw m5, m7 ; r5 = c2*i6
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paddsw m6, m6 ; r6 = D + D
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pmulhw m7, C(6) ; r7 = c6*i6
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paddsw m6, m3 ; r6 = D. = B + D
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movq I(1), m4 ; save C. at I(1)
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psubsw m1, m5 ; r1 = H = c6*i2 - c2*i6
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movq m4, C(4)
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movq m5, m3 ; r5 = B - D
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pmulhw m3, m4 ; r3 = (c4 - 1) * (B - D)
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paddsw m7, m2 ; r3 = (c4 - 1) * (B - D)
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movq I(2), m6 ; save D. at I(2)
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movq m2, m0 ; r2 = A - C
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movq m6, I(0)
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pmulhw m0, m4 ; r0 = (c4 - 1) * (A - C)
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paddw m5, m3 ; r5 = B. = c4 * (B - D)
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movq m3, J(4)
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psubsw m5, m1 ; r5 = B.. = B. - H
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paddw m2, m0 ; r0 = A. = c4 * (A - C)
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psubsw m6, m3 ; r6 = i0 - i4
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movq m0, m6
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pmulhw m6, m4 ; r6 = (c4 - 1) * (i0 - i4)
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paddsw m3, m3 ; r3 = i4 + i4
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paddsw m1, m1 ; r1 = H + H
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paddsw m3, m0 ; r3 = i0 + i4
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paddsw m1, m5 ; r1 = H. = B + H
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pmulhw m4, m3 ; r4 = (c4 - 1) * (i0 + i4)
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paddsw m6, m0 ; r6 = F = c4 * (i0 - i4)
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psubsw m6, m2 ; r6 = F. = F - A.
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paddsw m2, m2 ; r2 = A. + A.
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movq m0, I(1) ; r0 = C.
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paddsw m2, m6 ; r2 = A.. = F + A.
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paddw m4, m3 ; r4 = E = c4 * (i0 + i4)
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psubsw m2, m1 ; r2 = R2 = A.. - H.
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%endmacro
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; RowIDCT gets ready to transpose
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%macro RowIDCT 0
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BeginIDCT
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movq m3, I(2) ; r3 = D.
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psubsw m4, m7 ; r4 = E. = E - G
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paddsw m1, m1 ; r1 = H. + H.
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paddsw m7, m7 ; r7 = G + G
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paddsw m1, m2 ; r1 = R1 = A.. + H.
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paddsw m7, m4 ; r1 = R1 = A.. + H.
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psubsw m4, m3 ; r4 = R4 = E. - D.
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paddsw m3, m3
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psubsw m6, m5 ; r6 = R6 = F. - B..
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paddsw m5, m5
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paddsw m3, m4 ; r3 = R3 = E. + D.
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paddsw m5, m6 ; r5 = R5 = F. + B..
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psubsw m7, m0 ; r7 = R7 = G. - C.
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paddsw m0, m0
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movq I(1), m1 ; save R1
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paddsw m0, m7 ; r0 = R0 = G. + C.
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%endmacro
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; Column IDCT normalizes and stores final results
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%macro ColumnIDCT 0
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BeginIDCT
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paddsw m2, OC_8 ; adjust R2 (and R1) for shift
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paddsw m1, m1 ; r1 = H. + H.
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paddsw m1, m2 ; r1 = R1 = A.. + H.
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psraw m2, 4 ; r2 = NR2
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psubsw m4, m7 ; r4 = E. = E - G
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psraw m1, 4 ; r1 = NR2
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movq m3, I(2) ; r3 = D.
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paddsw m7, m7 ; r7 = G + G
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movq I(2), m2 ; store NR2 at I2
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paddsw m7, m4 ; r7 = G. = E + G
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movq I(1), m1 ; store NR1 at I1
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psubsw m4, m3 ; r4 = R4 = E. - D.
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paddsw m4, OC_8 ; adjust R4 (and R3) for shift
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paddsw m3, m3 ; r3 = D. + D.
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paddsw m3, m4 ; r3 = R3 = E. + D.
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psraw m4, 4 ; r4 = NR4
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psubsw m6, m5 ; r6 = R6 = F. - B..
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psraw m3, 4 ; r3 = NR3
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paddsw m6, OC_8 ; adjust R6 (and R5) for shift
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paddsw m5, m5 ; r5 = B.. + B..
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paddsw m5, m6 ; r5 = R5 = F. + B..
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psraw m6, 4 ; r6 = NR6
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movq J(4), m4 ; store NR4 at J4
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psraw m5, 4 ; r5 = NR5
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movq I(3), m3 ; store NR3 at I3
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psubsw m7, m0 ; r7 = R7 = G. - C.
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paddsw m7, OC_8 ; adjust R7 (and R0) for shift
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paddsw m0, m0 ; r0 = C. + C.
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paddsw m0, m7 ; r0 = R0 = G. + C.
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psraw m7, 4 ; r7 = NR7
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movq J(6), m6 ; store NR6 at J6
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psraw m0, 4 ; r0 = NR0
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movq J(5), m5 ; store NR5 at J5
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movq J(7), m7 ; store NR7 at J7
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movq I(0), m0 ; store NR0 at I0
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%endmacro
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; Following macro does two 4x4 transposes in place.
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;
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; At entry (we assume):
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;
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; r0 = a3 a2 a1 a0
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; I(1) = b3 b2 b1 b0
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; r2 = c3 c2 c1 c0
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; r3 = d3 d2 d1 d0
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;
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; r4 = e3 e2 e1 e0
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; r5 = f3 f2 f1 f0
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; r6 = g3 g2 g1 g0
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; r7 = h3 h2 h1 h0
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;
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; At exit, we have:
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;
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; I(0) = d0 c0 b0 a0
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; I(1) = d1 c1 b1 a1
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; I(2) = d2 c2 b2 a2
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; I(3) = d3 c3 b3 a3
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;
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; J(4) = h0 g0 f0 e0
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; J(5) = h1 g1 f1 e1
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; J(6) = h2 g2 f2 e2
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; J(7) = h3 g3 f3 e3
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;
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; I(0) I(1) I(2) I(3) is the transpose of r0 I(1) r2 r3.
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; J(4) J(5) J(6) J(7) is the transpose of r4 r5 r6 r7.
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;
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; Since r1 is free at entry, we calculate the Js first.
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%macro Transpose 0
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movq m1, m4 ; r1 = e3 e2 e1 e0
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punpcklwd m4, m5 ; r4 = f1 e1 f0 e0
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movq I(0), m0 ; save a3 a2 a1 a0
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punpckhwd m1, m5 ; r1 = f3 e3 f2 e2
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movq m0, m6 ; r0 = g3 g2 g1 g0
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punpcklwd m6, m7 ; r6 = h1 g1 h0 g0
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movq m5, m4 ; r5 = f1 e1 f0 e0
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punpckldq m4, m6 ; r4 = h0 g0 f0 e0 = R4
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punpckhdq m5, m6 ; r5 = h1 g1 f1 e1 = R5
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movq m6, m1 ; r6 = f3 e3 f2 e2
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movq J(4), m4
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punpckhwd m0, m7 ; r0 = h3 g3 h2 g2
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movq J(5), m5
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punpckhdq m6, m0 ; r6 = h3 g3 f3 e3 = R7
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movq m4, I(0) ; r4 = a3 a2 a1 a0
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punpckldq m1, m0 ; r1 = h2 g2 f2 e2 = R6
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movq m5, I(1) ; r5 = b3 b2 b1 b0
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movq m0, m4 ; r0 = a3 a2 a1 a0
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movq J(7), m6
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punpcklwd m0, m5 ; r0 = b1 a1 b0 a0
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movq J(6), m1
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punpckhwd m4, m5 ; r4 = b3 a3 b2 a2
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movq m5, m2 ; r5 = c3 c2 c1 c0
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punpcklwd m2, m3 ; r2 = d1 c1 d0 c0
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movq m1, m0 ; r1 = b1 a1 b0 a0
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punpckldq m0, m2 ; r0 = d0 c0 b0 a0 = R0
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punpckhdq m1, m2 ; r1 = d1 c1 b1 a1 = R1
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movq m2, m4 ; r2 = b3 a3 b2 a2
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movq I(0), m0
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punpckhwd m5, m3 ; r5 = d3 c3 d2 c2
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movq I(1), m1
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punpckhdq m4, m5 ; r4 = d3 c3 b3 a3 = R3
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punpckldq m2, m5 ; r2 = d2 c2 b2 a2 = R2
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movq I(3), m4
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movq I(2), m2
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%endmacro
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%macro VP3_1D_IDCT_SSE2 0
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movdqa m2, I(3) ; xmm2 = i3
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movdqa m6, C(3) ; xmm6 = c3
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movdqa m4, m2 ; xmm4 = i3
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movdqa m7, I(5) ; xmm7 = i5
|
|
pmulhw m4, m6 ; xmm4 = c3 * i3 - i3
|
|
movdqa m1, C(5) ; xmm1 = c5
|
|
pmulhw m6, m7 ; xmm6 = c3 * i5 - i5
|
|
movdqa m5, m1 ; xmm5 = c5
|
|
pmulhw m1, m2 ; xmm1 = c5 * i3 - i3
|
|
movdqa m3, I(1) ; xmm3 = i1
|
|
pmulhw m5, m7 ; xmm5 = c5 * i5 - i5
|
|
movdqa m0, C(1) ; xmm0 = c1
|
|
paddw m4, m2 ; xmm4 = c3 * i3
|
|
paddw m6, m7 ; xmm6 = c3 * i5
|
|
paddw m2, m1 ; xmm2 = c5 * i3
|
|
movdqa m1, I(7) ; xmm1 = i7
|
|
paddw m7, m5 ; xmm7 = c5 * i5
|
|
movdqa m5, m0 ; xmm5 = c1
|
|
pmulhw m0, m3 ; xmm0 = c1 * i1 - i1
|
|
paddsw m4, m7 ; xmm4 = c3 * i3 + c5 * i5 = C
|
|
pmulhw m5, m1 ; xmm5 = c1 * i7 - i7
|
|
movdqa m7, C(7) ; xmm7 = c7
|
|
psubsw m6, m2 ; xmm6 = c3 * i5 - c5 * i3 = D
|
|
paddw m0, m3 ; xmm0 = c1 * i1
|
|
pmulhw m3, m7 ; xmm3 = c7 * i1
|
|
movdqa m2, I(2) ; xmm2 = i2
|
|
pmulhw m7, m1 ; xmm7 = c7 * i7
|
|
paddw m5, m1 ; xmm5 = c1 * i7
|
|
movdqa m1, m2 ; xmm1 = i2
|
|
pmulhw m2, C(2) ; xmm2 = i2 * c2 -i2
|
|
psubsw m3, m5 ; xmm3 = c7 * i1 - c1 * i7 = B
|
|
movdqa m5, I(6) ; xmm5 = i6
|
|
paddsw m0, m7 ; xmm0 = c1 * i1 + c7 * i7 = A
|
|
movdqa m7, m5 ; xmm7 = i6
|
|
psubsw m0, m4 ; xmm0 = A - C
|
|
pmulhw m5, C(2) ; xmm5 = c2 * i6 - i6
|
|
paddw m2, m1 ; xmm2 = i2 * c2
|
|
pmulhw m1, C(6) ; xmm1 = c6 * i2
|
|
paddsw m4, m4 ; xmm4 = C + C
|
|
paddsw m4, m0 ; xmm4 = A + C = C.
|
|
psubsw m3, m6 ; xmm3 = B - D
|
|
paddw m5, m7 ; xmm5 = c2 * i6
|
|
paddsw m6, m6 ; xmm6 = D + D
|
|
pmulhw m7, C(6) ; xmm7 = c6 * i6
|
|
paddsw m6, m3 ; xmm6 = B + D = D.
|
|
movdqa I(1), m4 ; Save C. at I(1)
|
|
psubsw m1, m5 ; xmm1 = c6 * i2 - c2 * i6 = H
|
|
movdqa m4, C(4) ; xmm4 = C4
|
|
movdqa m5, m3 ; xmm5 = B - D
|
|
pmulhw m3, m4 ; xmm3 = ( c4 -1 ) * ( B - D )
|
|
paddsw m7, m2 ; xmm7 = c2 * i2 + c6 * i6 = G
|
|
movdqa I(2), m6 ; save D. at I(2)
|
|
movdqa m2, m0 ; xmm2 = A - C
|
|
movdqa m6, I(0) ; xmm6 = i0
|
|
pmulhw m0, m4 ; xmm0 = ( c4 - 1 ) * ( A - C ) = A.
|
|
paddw m5, m3 ; xmm5 = c4 * ( B - D ) = B.
|
|
movdqa m3, I(4) ; xmm3 = i4
|
|
psubsw m5, m1 ; xmm5 = B. - H = B..
|
|
paddw m2, m0 ; xmm2 = c4 * ( A - C) = A.
|
|
psubsw m6, m3 ; xmm6 = i0 - i4
|
|
movdqa m0, m6 ; xmm0 = i0 - i4
|
|
pmulhw m6, m4 ; xmm6 = (c4 - 1) * (i0 - i4) = F
|
|
paddsw m3, m3 ; xmm3 = i4 + i4
|
|
paddsw m1, m1 ; xmm1 = H + H
|
|
paddsw m3, m0 ; xmm3 = i0 + i4
|
|
paddsw m1, m5 ; xmm1 = B. + H = H.
|
|
pmulhw m4, m3 ; xmm4 = ( c4 - 1 ) * ( i0 + i4 )
|
|
paddw m6, m0 ; xmm6 = c4 * ( i0 - i4 )
|
|
psubsw m6, m2 ; xmm6 = F - A. = F.
|
|
paddsw m2, m2 ; xmm2 = A. + A.
|
|
movdqa m0, I(1) ; Load C. from I(1)
|
|
paddsw m2, m6 ; xmm2 = F + A. = A..
|
|
paddw m4, m3 ; xmm4 = c4 * ( i0 + i4 ) = 3
|
|
psubsw m2, m1 ; xmm2 = A.. - H. = R2
|
|
ADD(m2) ; Adjust R2 and R1 before shifting
|
|
paddsw m1, m1 ; xmm1 = H. + H.
|
|
paddsw m1, m2 ; xmm1 = A.. + H. = R1
|
|
SHIFT(m2) ; xmm2 = op2
|
|
psubsw m4, m7 ; xmm4 = E - G = E.
|
|
SHIFT(m1) ; xmm1 = op1
|
|
movdqa m3, I(2) ; Load D. from I(2)
|
|
paddsw m7, m7 ; xmm7 = G + G
|
|
paddsw m7, m4 ; xmm7 = E + G = G.
|
|
psubsw m4, m3 ; xmm4 = E. - D. = R4
|
|
ADD(m4) ; Adjust R4 and R3 before shifting
|
|
paddsw m3, m3 ; xmm3 = D. + D.
|
|
paddsw m3, m4 ; xmm3 = E. + D. = R3
|
|
SHIFT(m4) ; xmm4 = op4
|
|
psubsw m6, m5 ; xmm6 = F. - B..= R6
|
|
SHIFT(m3) ; xmm3 = op3
|
|
ADD(m6) ; Adjust R6 and R5 before shifting
|
|
paddsw m5, m5 ; xmm5 = B.. + B..
|
|
paddsw m5, m6 ; xmm5 = F. + B.. = R5
|
|
SHIFT(m6) ; xmm6 = op6
|
|
SHIFT(m5) ; xmm5 = op5
|
|
psubsw m7, m0 ; xmm7 = G. - C. = R7
|
|
ADD(m7) ; Adjust R7 and R0 before shifting
|
|
paddsw m0, m0 ; xmm0 = C. + C.
|
|
paddsw m0, m7 ; xmm0 = G. + C.
|
|
SHIFT(m7) ; xmm7 = op7
|
|
SHIFT(m0) ; xmm0 = op0
|
|
%endmacro
|
|
|
|
%macro PUT_BLOCK 8
|
|
movdqa O(0), m%1
|
|
movdqa O(1), m%2
|
|
movdqa O(2), m%3
|
|
movdqa O(3), m%4
|
|
movdqa O(4), m%5
|
|
movdqa O(5), m%6
|
|
movdqa O(6), m%7
|
|
movdqa O(7), m%8
|
|
%endmacro
|
|
|
|
%macro VP3_IDCT 1
|
|
%if mmsize == 16
|
|
%define I(x) [%1+16*x]
|
|
%define O(x) [%1+16*x]
|
|
%define C(x) [vp3_idct_data+16*(x-1)]
|
|
%define SHIFT(x)
|
|
%define ADD(x)
|
|
VP3_1D_IDCT_SSE2
|
|
%if ARCH_X86_64
|
|
TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, 8
|
|
%else
|
|
TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, [%1], [%1+16]
|
|
%endif
|
|
PUT_BLOCK 0, 1, 2, 3, 4, 5, 6, 7
|
|
|
|
%define SHIFT(x) psraw x, 4
|
|
%define ADD(x) paddsw x, [pw_8]
|
|
VP3_1D_IDCT_SSE2
|
|
PUT_BLOCK 0, 1, 2, 3, 4, 5, 6, 7
|
|
%else ; mmsize == 8
|
|
; eax = quantized input
|
|
; ebx = dequantizer matrix
|
|
; ecx = IDCT constants
|
|
; M(I) = ecx + MaskOffset(0) + I * 8
|
|
; C(I) = ecx + CosineOffset(32) + (I-1) * 8
|
|
; edx = output
|
|
; r0..r7 = mm0..mm7
|
|
%define OC_8 [pw_8]
|
|
%define C(x) [vp3_idct_data+16*(x-1)]
|
|
|
|
; at this point, function has completed dequantization + dezigzag +
|
|
; partial transposition; now do the idct itself
|
|
%define I(x) [%1+16*x]
|
|
%define J(x) [%1+16*x]
|
|
RowIDCT
|
|
Transpose
|
|
|
|
%define I(x) [%1+16*x+8]
|
|
%define J(x) [%1+16*x+8]
|
|
RowIDCT
|
|
Transpose
|
|
|
|
%define I(x) [%1+16* x]
|
|
%define J(x) [%1+16*(x-4)+8]
|
|
ColumnIDCT
|
|
|
|
%define I(x) [%1+16* x +64]
|
|
%define J(x) [%1+16*(x-4)+72]
|
|
ColumnIDCT
|
|
%endif ; mmsize == 16/8
|
|
%endmacro
|
|
|
|
%macro vp3_idct_funcs 0
|
|
cglobal vp3_idct_put, 3, 4, 9
|
|
VP3_IDCT r2
|
|
|
|
movsxdifnidn r1, r1d
|
|
mova m4, [pb_80]
|
|
lea r3, [r1*3]
|
|
%assign %%i 0
|
|
%rep 16/mmsize
|
|
mova m0, [r2+mmsize*0+%%i]
|
|
mova m1, [r2+mmsize*2+%%i]
|
|
mova m2, [r2+mmsize*4+%%i]
|
|
mova m3, [r2+mmsize*6+%%i]
|
|
%if mmsize == 8
|
|
packsswb m0, [r2+mmsize*8+%%i]
|
|
packsswb m1, [r2+mmsize*10+%%i]
|
|
packsswb m2, [r2+mmsize*12+%%i]
|
|
packsswb m3, [r2+mmsize*14+%%i]
|
|
%else
|
|
packsswb m0, [r2+mmsize*1+%%i]
|
|
packsswb m1, [r2+mmsize*3+%%i]
|
|
packsswb m2, [r2+mmsize*5+%%i]
|
|
packsswb m3, [r2+mmsize*7+%%i]
|
|
%endif
|
|
paddb m0, m4
|
|
paddb m1, m4
|
|
paddb m2, m4
|
|
paddb m3, m4
|
|
movq [r0 ], m0
|
|
%if mmsize == 8
|
|
movq [r0+r1 ], m1
|
|
movq [r0+r1*2], m2
|
|
movq [r0+r3 ], m3
|
|
%else
|
|
movhps [r0+r1 ], m0
|
|
movq [r0+r1*2], m1
|
|
movhps [r0+r3 ], m1
|
|
%endif
|
|
%if %%i == 0
|
|
lea r0, [r0+r1*4]
|
|
%endif
|
|
%if mmsize == 16
|
|
movq [r0 ], m2
|
|
movhps [r0+r1 ], m2
|
|
movq [r0+r1*2], m3
|
|
movhps [r0+r3 ], m3
|
|
%endif
|
|
%assign %%i %%i+8
|
|
%endrep
|
|
|
|
pxor m0, m0
|
|
%assign %%offset 0
|
|
%rep 128/mmsize
|
|
mova [r2+%%offset], m0
|
|
%assign %%offset %%offset+mmsize
|
|
%endrep
|
|
RET
|
|
|
|
cglobal vp3_idct_add, 3, 4, 9
|
|
VP3_IDCT r2
|
|
|
|
movsxdifnidn r1, r1d
|
|
lea r3, [r1*3]
|
|
pxor m4, m4
|
|
%if mmsize == 16
|
|
%assign %%i 0
|
|
%rep 2
|
|
movq m0, [r0]
|
|
movq m1, [r0+r1]
|
|
movq m2, [r0+r1*2]
|
|
movq m3, [r0+r3]
|
|
punpcklbw m0, m4
|
|
punpcklbw m1, m4
|
|
punpcklbw m2, m4
|
|
punpcklbw m3, m4
|
|
paddsw m0, [r2+ 0+%%i]
|
|
paddsw m1, [r2+16+%%i]
|
|
paddsw m2, [r2+32+%%i]
|
|
paddsw m3, [r2+48+%%i]
|
|
packuswb m0, m1
|
|
packuswb m2, m3
|
|
movq [r0 ], m0
|
|
movhps [r0+r1 ], m0
|
|
movq [r0+r1*2], m2
|
|
movhps [r0+r3 ], m2
|
|
%if %%i == 0
|
|
lea r0, [r0+r1*4]
|
|
%endif
|
|
%assign %%i %%i+64
|
|
%endrep
|
|
%else
|
|
%assign %%i 0
|
|
%rep 2
|
|
movq m0, [r0]
|
|
movq m1, [r0+r1]
|
|
movq m2, [r0+r1*2]
|
|
movq m3, [r0+r3]
|
|
movq m5, m0
|
|
movq m6, m1
|
|
movq m7, m2
|
|
punpcklbw m0, m4
|
|
punpcklbw m1, m4
|
|
punpcklbw m2, m4
|
|
punpckhbw m5, m4
|
|
punpckhbw m6, m4
|
|
punpckhbw m7, m4
|
|
paddsw m0, [r2+ 0+%%i]
|
|
paddsw m1, [r2+16+%%i]
|
|
paddsw m2, [r2+32+%%i]
|
|
paddsw m5, [r2+64+%%i]
|
|
paddsw m6, [r2+80+%%i]
|
|
paddsw m7, [r2+96+%%i]
|
|
packuswb m0, m5
|
|
movq m5, m3
|
|
punpcklbw m3, m4
|
|
punpckhbw m5, m4
|
|
packuswb m1, m6
|
|
paddsw m3, [r2+48+%%i]
|
|
paddsw m5, [r2+112+%%i]
|
|
packuswb m2, m7
|
|
packuswb m3, m5
|
|
movq [r0 ], m0
|
|
movq [r0+r1 ], m1
|
|
movq [r0+r1*2], m2
|
|
movq [r0+r3 ], m3
|
|
%if %%i == 0
|
|
lea r0, [r0+r1*4]
|
|
%endif
|
|
%assign %%i %%i+8
|
|
%endrep
|
|
%endif
|
|
%assign %%i 0
|
|
%rep 128/mmsize
|
|
mova [r2+%%i], m4
|
|
%assign %%i %%i+mmsize
|
|
%endrep
|
|
RET
|
|
%endmacro
|
|
|
|
%if ARCH_X86_32
|
|
INIT_MMX mmx
|
|
vp3_idct_funcs
|
|
%endif
|
|
|
|
INIT_XMM sse2
|
|
vp3_idct_funcs
|
|
|
|
%macro DC_ADD 0
|
|
movq m2, [r0 ]
|
|
movq m3, [r0+r1 ]
|
|
paddusb m2, m0
|
|
movq m4, [r0+r1*2]
|
|
paddusb m3, m0
|
|
movq m5, [r0+r2 ]
|
|
paddusb m4, m0
|
|
paddusb m5, m0
|
|
psubusb m2, m1
|
|
psubusb m3, m1
|
|
movq [r0 ], m2
|
|
psubusb m4, m1
|
|
movq [r0+r1 ], m3
|
|
psubusb m5, m1
|
|
movq [r0+r1*2], m4
|
|
movq [r0+r2 ], m5
|
|
%endmacro
|
|
|
|
INIT_MMX mmxext
|
|
cglobal vp3_idct_dc_add, 3, 4
|
|
%if ARCH_X86_64
|
|
movsxd r1, r1d
|
|
%endif
|
|
movsx r3, word [r2]
|
|
mov word [r2], 0
|
|
lea r2, [r1*3]
|
|
add r3, 15
|
|
sar r3, 5
|
|
movd m0, r3d
|
|
pshufw m0, m0, 0x0
|
|
pxor m1, m1
|
|
psubw m1, m0
|
|
packuswb m0, m0
|
|
packuswb m1, m1
|
|
DC_ADD
|
|
lea r0, [r0+r1*4]
|
|
DC_ADD
|
|
RET
|