;****************************************************************************** ;* VP9 IDCT SIMD optimizations ;* ;* Copyright (C) 2013 Clément Bœsch ;* Copyright (C) 2013 Ronald S. Bultje ;* ;* This file is part of FFmpeg. ;* ;* FFmpeg 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. ;* ;* FFmpeg 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 FFmpeg; 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 pw_11585x2: times 8 dw 23170 %macro VP9_IDCT_COEFFS 2 pw_m%1_%2: times 4 dw -%1, %2 pw_%2_%1: times 4 dw %2, %1 pw_m%2_m%1: times 4 dw -%2, -%1 %endmacro %macro VP9_IDCT_COEFFS_ALL 2 pw_%1x2: times 8 dw %1*2 pw_m%1x2: times 8 dw -%1*2 pw_%2x2: times 8 dw %2*2 pw_m%2x2: times 8 dw -%2*2 VP9_IDCT_COEFFS %1, %2 %endmacro VP9_IDCT_COEFFS_ALL 15137, 6270 VP9_IDCT_COEFFS_ALL 16069, 3196 VP9_IDCT_COEFFS_ALL 9102, 13623 VP9_IDCT_COEFFS_ALL 16305, 1606 VP9_IDCT_COEFFS_ALL 10394, 12665 VP9_IDCT_COEFFS_ALL 14449, 7723 VP9_IDCT_COEFFS_ALL 4756, 15679 pd_8192: times 4 dd 8192 pw_2048: times 8 dw 2048 pw_1024: times 8 dw 1024 pw_512: times 8 dw 512 SECTION .text ; (a*x + b*y + round) >> shift %macro VP9_MULSUB_2W_2X 6 ; dst1, dst2, src (unchanged), round, coefs1, coefs2 pmaddwd m%1, m%3, %5 pmaddwd m%2, m%3, %6 paddd m%1, %4 paddd m%2, %4 psrad m%1, 14 psrad m%2, 14 %endmacro %macro VP9_UNPACK_MULSUB_2W_4X 7 ; dst1, dst2, coef1, coef2, rnd, tmp1, tmp2 punpckhwd m%6, m%2, m%1 VP9_MULSUB_2W_2X %7, %6, %6, %5, [pw_m%3_%4], [pw_%4_%3] punpcklwd m%2, m%1 VP9_MULSUB_2W_2X %1, %2, %2, %5, [pw_m%3_%4], [pw_%4_%3] packssdw m%1, m%7 packssdw m%2, m%6 %endmacro %macro VP9_STORE_2X 5 ; reg1, reg2, tmp1, tmp2, zero movh m%3, [dstq] movh m%4, [dstq+strideq] punpcklbw m%3, m%5 punpcklbw m%4, m%5 paddw m%3, m%1 paddw m%4, m%2 packuswb m%3, m%5 packuswb m%4, m%5 movh [dstq], m%3 movh [dstq+strideq], m%4 %endmacro ;------------------------------------------------------------------------------------------- ; void vp9_idct_idct_4x4_add_(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob); ;------------------------------------------------------------------------------------------- %macro VP9_IDCT4_1D_FINALIZE 0 SUMSUB_BA w, 3, 2, 4 ; m3=t3+t0, m2=-t3+t0 SUMSUB_BA w, 1, 0, 4 ; m1=t2+t1, m0=-t2+t1 SWAP 0, 3, 2 ; 3102 -> 0123 %endmacro %macro VP9_IDCT4_1D 0 SUMSUB_BA w, 2, 0, 4 ; m2=IN(0)+IN(2) m0=IN(0)-IN(2) pmulhrsw m2, m6 ; m2=t0 pmulhrsw m0, m6 ; m0=t1 VP9_UNPACK_MULSUB_2W_4X 1, 3, 15137, 6270, m7, 4, 5 ; m1=t2, m3=t3 VP9_IDCT4_1D_FINALIZE %endmacro ; 2x2 top left corner %macro VP9_IDCT4_2x2_1D 0 pmulhrsw m0, m5 ; m0=t1 mova m2, m0 ; m2=t0 mova m3, m1 pmulhrsw m1, m6 ; m1=t2 pmulhrsw m3, m7 ; m3=t3 VP9_IDCT4_1D_FINALIZE %endmacro %macro VP9_IDCT4_WRITEOUT 0 mova m5, [pw_2048] pmulhrsw m0, m5 ; (x*2048 + (1<<14))>>15 <=> (x+8)>>4 pmulhrsw m1, m5 VP9_STORE_2X 0, 1, 6, 7, 4 lea dstq, [dstq+2*strideq] pmulhrsw m2, m5 pmulhrsw m3, m5 VP9_STORE_2X 2, 3, 6, 7, 4 %endmacro INIT_MMX ssse3 cglobal vp9_idct_idct_4x4_add, 4,4,0, dst, stride, block, eob cmp eobd, 4 ; 2x2 or smaller jg .idctfull cmp eobd, 1 ; faster path for when only DC is set jne .idct2x2 movd m0, [blockq] mova m5, [pw_11585x2] pmulhrsw m0, m5 pmulhrsw m0, m5 pshufw m0, m0, 0 pxor m4, m4 movh [blockq], m4 pmulhrsw m0, [pw_2048] ; (x*2048 + (1<<14))>>15 <=> (x+8)>>4 VP9_STORE_2X 0, 0, 6, 7, 4 lea dstq, [dstq+2*strideq] VP9_STORE_2X 0, 0, 6, 7, 4 RET ; faster path for when only top left 2x2 block is set .idct2x2: movd m0, [blockq+0] movd m1, [blockq+8] mova m5, [pw_11585x2] mova m6, [pw_6270x2] mova m7, [pw_15137x2] VP9_IDCT4_2x2_1D TRANSPOSE4x4W 0, 1, 2, 3, 4 VP9_IDCT4_2x2_1D pxor m4, m4 ; used for the block reset, and VP9_STORE_2X movh [blockq+ 0], m4 movh [blockq+ 8], m4 VP9_IDCT4_WRITEOUT RET .idctfull: ; generic full 4x4 idct/idct mova m0, [blockq+ 0] mova m1, [blockq+ 8] mova m2, [blockq+16] mova m3, [blockq+24] mova m6, [pw_11585x2] mova m7, [pd_8192] ; rounding VP9_IDCT4_1D TRANSPOSE4x4W 0, 1, 2, 3, 4 VP9_IDCT4_1D pxor m4, m4 ; used for the block reset, and VP9_STORE_2X mova [blockq+ 0], m4 mova [blockq+ 8], m4 mova [blockq+16], m4 mova [blockq+24], m4 VP9_IDCT4_WRITEOUT RET %if ARCH_X86_64 ; TODO: 32-bit? (32-bit limited to 8 xmm reg, we use more) ;------------------------------------------------------------------------------------------- ; void vp9_idct_idct_8x8_add_(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob); ;------------------------------------------------------------------------------------------- %macro VP9_IDCT8_1D_FINALIZE 0 SUMSUB_BA w, 3, 10, 4 ; m3=t0+t7, m10=t0-t7 SUMSUB_BA w, 1, 2, 4 ; m1=t1+t6, m2=t1-t6 SUMSUB_BA w, 11, 0, 4 ; m11=t2+t5, m0=t2-t5 SUMSUB_BA w, 9, 8, 4 ; m9=t3+t4, m8=t3-t4 SWAP 11, 10, 2 SWAP 3, 9, 0 %endmacro %macro VP9_IDCT8_1D 0 SUMSUB_BA w, 8, 0, 4 ; m8=IN(0)+IN(4) m0=IN(0)-IN(4) pmulhrsw m8, m12 ; m8=t0a pmulhrsw m0, m12 ; m0=t1a VP9_UNPACK_MULSUB_2W_4X 2, 10, 15137, 6270, m7, 4, 5 ; m2=t2a, m10=t3a VP9_UNPACK_MULSUB_2W_4X 1, 11, 16069, 3196, m7, 4, 5 ; m1=t4a, m11=t7a VP9_UNPACK_MULSUB_2W_4X 9, 3, 9102, 13623, m7, 4, 5 ; m9=t5a, m3=t6a SUMSUB_BA w, 10, 8, 4 ; m10=t0a+t3a (t0), m8=t0a-t3a (t3) SUMSUB_BA w, 2, 0, 4 ; m2=t1a+t2a (t1), m0=t1a-t2a (t2) SUMSUB_BA w, 9, 1, 4 ; m9=t4a+t5a (t4), m1=t4a-t5a (t5a) SUMSUB_BA w, 3, 11, 4 ; m3=t7a+t6a (t7), m11=t7a-t6a (t6a) SUMSUB_BA w, 1, 11, 4 ; m1=t6a+t5a (t6), m11=t6a-t5a (t5) pmulhrsw m1, m12 ; m1=t6 pmulhrsw m11, m12 ; m11=t5 VP9_IDCT8_1D_FINALIZE %endmacro %macro VP9_IDCT8_4x4_1D 0 pmulhrsw m0, m12 ; m0=t1a/t0a pmulhrsw m10, m2, [pw_15137x2] ; m10=t3a pmulhrsw m2, [pw_6270x2] ; m2=t2a pmulhrsw m11, m1, [pw_16069x2] ; m11=t7a pmulhrsw m1, [pw_3196x2] ; m1=t4a pmulhrsw m9, m3, [pw_9102x2] ; m9=-t5a pmulhrsw m3, [pw_13623x2] ; m3=t6a psubw m8, m0, m10 ; m8=t0a-t3a (t3) paddw m10, m0 ; m10=t0a+t3a (t0) SUMSUB_BA w, 2, 0, 4 ; m2=t1a+t2a (t1), m0=t1a-t2a (t2) SUMSUB_BA w, 9, 1, 4 ; m1=t4a+t5a (t4), m9=t4a-t5a (t5a) SWAP 1, 9 SUMSUB_BA w, 3, 11, 4 ; m3=t7a+t6a (t7), m11=t7a-t6a (t6a) SUMSUB_BA w, 1, 11, 4 ; m1=t6a+t5a (t6), m11=t6a-t5a (t5) pmulhrsw m1, m12 ; m1=t6 pmulhrsw m11, m12 ; m11=t5 VP9_IDCT8_1D_FINALIZE %endmacro ; TODO: a lot of t* copies can probably be removed and merged with ; following SUMSUBs from VP9_IDCT8_1D_FINALIZE with AVX %macro VP9_IDCT8_2x2_1D 0 pmulhrsw m0, m12 ; m0=t0 mova m3, m1 pmulhrsw m1, m6 ; m1=t4 pmulhrsw m3, m7 ; m3=t7 mova m2, m0 ; m2=t1 mova m10, m0 ; m10=t2 mova m8, m0 ; m8=t3 mova m11, m3 ; t5 = t7a ... mova m9, m3 ; t6 = t7a ... psubw m11, m1 ; t5 = t7a - t4a paddw m9, m1 ; t6 = t7a + t4a pmulhrsw m11, m12 ; m11=t5 pmulhrsw m9, m12 ; m9=t6 SWAP 0, 10 SWAP 9, 1 VP9_IDCT8_1D_FINALIZE %endmacro %macro VP9_IDCT8_WRITEOUT 0 mova m5, [pw_1024] pmulhrsw m0, m5 ; (x*1024 + (1<<14))>>15 <=> (x+16)>>5 pmulhrsw m1, m5 VP9_STORE_2X 0, 1, 6, 7, 4 lea dstq, [dstq+2*strideq] pmulhrsw m2, m5 pmulhrsw m3, m5 VP9_STORE_2X 2, 3, 6, 7, 4 lea dstq, [dstq+2*strideq] pmulhrsw m8, m5 pmulhrsw m9, m5 VP9_STORE_2X 8, 9, 6, 7, 4 lea dstq, [dstq+2*strideq] pmulhrsw m10, m5 pmulhrsw m11, m5 VP9_STORE_2X 10, 11, 6, 7, 4 %endmacro INIT_XMM ssse3 cglobal vp9_idct_idct_8x8_add, 4,4,13, dst, stride, block, eob mova m12, [pw_11585x2] ; often used cmp eobd, 12 ; top left half or less jg .idctfull cmp eobd, 3 ; top left corner or less jg .idcthalf cmp eobd, 1 ; faster path for when only DC is set jne .idcttopleftcorner movd m0, [blockq] pmulhrsw m0, m12 pmulhrsw m0, m12 SPLATW m0, m0, 0 pxor m4, m4 movd [blockq], m4 mova m5, [pw_1024] pmulhrsw m0, m5 ; (x*1024 + (1<<14))>>15 <=> (x+16)>>5 VP9_STORE_2X 0, 0, 6, 7, 4 lea dstq, [dstq+2*strideq] VP9_STORE_2X 0, 0, 6, 7, 4 lea dstq, [dstq+2*strideq] VP9_STORE_2X 0, 0, 6, 7, 4 lea dstq, [dstq+2*strideq] VP9_STORE_2X 0, 0, 6, 7, 4 RET ; faster path for when only left corner is set (3 input: DC, right to DC, below ; to DC). Note: also working with a 2x2 block .idcttopleftcorner: movd m0, [blockq+0] movd m1, [blockq+16] mova m6, [pw_3196x2] mova m7, [pw_16069x2] VP9_IDCT8_2x2_1D TRANSPOSE8x8W 0, 1, 2, 3, 8, 9, 10, 11, 4 VP9_IDCT8_2x2_1D pxor m4, m4 ; used for the block reset, and VP9_STORE_2X movd [blockq+ 0], m4 movd [blockq+16], m4 VP9_IDCT8_WRITEOUT RET .idcthalf: movh m0, [blockq + 0] movh m1, [blockq +16] movh m2, [blockq +32] movh m3, [blockq +48] VP9_IDCT8_4x4_1D TRANSPOSE8x8W 0, 1, 2, 3, 8, 9, 10, 11, 4 VP9_IDCT8_4x4_1D pxor m4, m4 movh [blockq+ 0], m4 movh [blockq+16], m4 movh [blockq+32], m4 movh [blockq+48], m4 VP9_IDCT8_WRITEOUT RET .idctfull: ; generic full 8x8 idct/idct mova m0, [blockq+ 0] ; IN(0) mova m1, [blockq+ 16] ; IN(1) mova m2, [blockq+ 32] ; IN(2) mova m3, [blockq+ 48] ; IN(3) mova m8, [blockq+ 64] ; IN(4) mova m9, [blockq+ 80] ; IN(5) mova m10, [blockq+ 96] ; IN(6) mova m11, [blockq+112] ; IN(7) mova m7, [pd_8192] ; rounding VP9_IDCT8_1D TRANSPOSE8x8W 0, 1, 2, 3, 8, 9, 10, 11, 4 VP9_IDCT8_1D pxor m4, m4 ; used for the block reset, and VP9_STORE_2X mova [blockq+ 0], m4 mova [blockq+ 16], m4 mova [blockq+ 32], m4 mova [blockq+ 48], m4 mova [blockq+ 64], m4 mova [blockq+ 80], m4 mova [blockq+ 96], m4 mova [blockq+112], m4 VP9_IDCT8_WRITEOUT RET ;--------------------------------------------------------------------------------------------- ; void vp9_idct_idct_16x16_add_(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob); ;--------------------------------------------------------------------------------------------- %macro VP9_IDCT16_1D 2-3 16 ; src, pass, nnzc mova m5, [%1+ 32] ; IN(1) mova m14, [%1+ 64] ; IN(2) mova m6, [%1+ 96] ; IN(3) mova m9, [%1+128] ; IN(4) mova m7, [%1+160] ; IN(5) mova m15, [%1+192] ; IN(6) mova m4, [%1+224] ; IN(7) %if %3 <= 8 pmulhrsw m8, m9, [pw_15137x2] ; t3 pmulhrsw m9, [pw_6270x2] ; t2 pmulhrsw m13, m14, [pw_16069x2] ; t7 pmulhrsw m14, [pw_3196x2] ; t4 pmulhrsw m12, m15, [pw_m9102x2] ; t5 pmulhrsw m15, [pw_13623x2] ; t6 pmulhrsw m2, m5, [pw_16305x2] ; t15 pmulhrsw m5, [pw_1606x2] ; t8 pmulhrsw m3, m4, [pw_m10394x2] ; t9 pmulhrsw m4, [pw_12665x2] ; t14 pmulhrsw m0, m7, [pw_14449x2] ; t13 pmulhrsw m7, [pw_7723x2] ; t10 pmulhrsw m1, m6, [pw_m4756x2] ; t11 pmulhrsw m6, [pw_15679x2] ; t12 %else mova m3, [%1+288] ; IN(9) mova m12, [%1+320] ; IN(10) mova m0, [%1+352] ; IN(11) mova m8, [%1+384] ; IN(12) mova m1, [%1+416] ; IN(13) mova m13, [%1+448] ; IN(14) mova m2, [%1+480] ; IN(15) ; m10=in0, m5=in1, m14=in2, m6=in3, m9=in4, m7=in5, m15=in6, m4=in7 ; m11=in8, m3=in9, m12=in10 m0=in11, m8=in12, m1=in13, m13=in14, m2=in15 VP9_UNPACK_MULSUB_2W_4X 9, 8, 15137, 6270, [pd_8192], 10, 11 ; t2, t3 VP9_UNPACK_MULSUB_2W_4X 14, 13, 16069, 3196, [pd_8192], 10, 11 ; t4, t7 VP9_UNPACK_MULSUB_2W_4X 12, 15, 9102, 13623, [pd_8192], 10, 11 ; t5, t6 VP9_UNPACK_MULSUB_2W_4X 5, 2, 16305, 1606, [pd_8192], 10, 11 ; t8, t15 VP9_UNPACK_MULSUB_2W_4X 3, 4, 10394, 12665, [pd_8192], 10, 11 ; t9, t14 VP9_UNPACK_MULSUB_2W_4X 7, 0, 14449, 7723, [pd_8192], 10, 11 ; t10, t13 VP9_UNPACK_MULSUB_2W_4X 1, 6, 4756, 15679, [pd_8192], 10, 11 ; t11, t12 %endif ; m11=t0, m10=t1, m9=t2, m8=t3, m14=t4, m12=t5, m15=t6, m13=t7 ; m5=t8, m3=t9, m7=t10, m1=t11, m6=t12, m0=t13, m4=t14, m2=t15 SUMSUB_BA w, 12, 14, 10 ; t4, t5 SUMSUB_BA w, 15, 13, 10 ; t7, t6 SUMSUB_BA w, 3, 5, 10 ; t8, t9 SUMSUB_BA w, 7, 1, 10 ; t11, t10 SUMSUB_BA w, 0, 6, 10 ; t12, t13 SUMSUB_BA w, 4, 2, 10 ; t15, t14 ; m8=t0, m9=t1, m10=t2, m11=t3, m12=t4, m14=t5, m13=t6, m15=t7 ; m3=t8, m5=t9, m1=t10, m7=t11, m0=t12, m6=t13, m2=t14, m4=t15 SUMSUB_BA w, 14, 13, 10 pmulhrsw m13, [pw_11585x2] ; t5 pmulhrsw m14, [pw_11585x2] ; t6 VP9_UNPACK_MULSUB_2W_4X 2, 5, 15137, 6270, [pd_8192], 10, 11 ; t9, t14 VP9_UNPACK_MULSUB_2W_4X 6, 1, 6270, m15137, [pd_8192], 10, 11 ; t10, t13 ; m8=t0, m9=t1, m10=t2, m11=t3, m12=t4, m13=t5, m14=t6, m15=t7 ; m3=t8, m2=t9, m6=t10, m7=t11, m0=t12, m1=t13, m5=t14, m4=t15 SUMSUB_BA w, 7, 3, 10 ; t8, t11 SUMSUB_BA w, 6, 2, 10 ; t9, t10 SUMSUB_BA w, 0, 4, 10 ; t15, t12 SUMSUB_BA w, 1, 5, 10 ; t14. t13 ; m15=t0, m14=t1, m13=t2, m12=t3, m11=t4, m10=t5, m9=t6, m8=t7 ; m7=t8, m6=t9, m2=t10, m3=t11, m4=t12, m5=t13, m1=t14, m0=t15 SUMSUB_BA w, 2, 5, 10 SUMSUB_BA w, 3, 4, 10 pmulhrsw m5, [pw_11585x2] ; t10 pmulhrsw m4, [pw_11585x2] ; t11 pmulhrsw m3, [pw_11585x2] ; t12 pmulhrsw m2, [pw_11585x2] ; t13 ; backup first register mova [rsp+32], m7 ; m15=t0, m14=t1, m13=t2, m12=t3, m11=t4, m10=t5, m9=t6, m8=t7 ; m7=t8, m6=t9, m5=t10, m4=t11, m3=t12, m2=t13, m1=t14, m0=t15 ; from load/start mova m10, [%1+ 0] ; IN(0) %if %3 <= 8 pmulhrsw m10, [pw_11585x2] ; t0 and t1 psubw m11, m10, m8 paddw m8, m10 %else mova m11, [%1+256] ; IN(8) ; from 3 stages back SUMSUB_BA w, 11, 10, 7 pmulhrsw m11, [pw_11585x2] ; t0 pmulhrsw m10, [pw_11585x2] ; t1 ; from 2 stages back SUMSUB_BA w, 8, 11, 7 ; t0, t3 %endif SUMSUB_BA w, 9, 10, 7 ; t1, t2 ; from 1 stage back SUMSUB_BA w, 15, 8, 7 ; t0, t7 SUMSUB_BA w, 14, 9, 7 ; t1, t6 SUMSUB_BA w, 13, 10, 7 ; t2, t5 SUMSUB_BA w, 12, 11, 7 ; t3, t4 SUMSUB_BA w, 0, 15, 7 ; t0, t15 SUMSUB_BA w, 1, 14, 7 ; t1, t14 SUMSUB_BA w, 2, 13, 7 ; t2, t13 SUMSUB_BA w, 3, 12, 7 ; t3, t12 SUMSUB_BA w, 4, 11, 7 ; t4, t11 SUMSUB_BA w, 5, 10, 7 ; t5, t10 %if %2 == 1 ; backup a different register mova [rsp+16], m15 mova m7, [rsp+32] SUMSUB_BA w, 6, 9, 15 ; t6, t9 SUMSUB_BA w, 7, 8, 15 ; t7, t8 TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, 15 mova [rsp+ 0], m0 mova [rsp+ 32], m1 mova [rsp+ 64], m2 mova [rsp+ 96], m3 mova [rsp+128], m4 mova [rsp+160], m5 mova [rsp+192], m6 mova [rsp+224], m7 mova m15, [rsp+16] TRANSPOSE8x8W 8, 9, 10, 11, 12, 13, 14, 15, 0 mova [rsp+ 16], m8 mova [rsp+ 48], m9 mova [rsp+ 80], m10 mova [rsp+112], m11 mova [rsp+144], m12 mova [rsp+176], m13 mova [rsp+208], m14 mova [rsp+240], m15 %else ; %2 == 2 ; backup more registers mova [rsp+64], m8 mova [rsp+96], m9 pxor m7, m7 pmulhrsw m0, [pw_512] pmulhrsw m1, [pw_512] VP9_STORE_2X 0, 1, 8, 9, 7 lea dstq, [dstq+strideq*2] pmulhrsw m2, [pw_512] pmulhrsw m3, [pw_512] VP9_STORE_2X 2, 3, 8, 9, 7 lea dstq, [dstq+strideq*2] pmulhrsw m4, [pw_512] pmulhrsw m5, [pw_512] VP9_STORE_2X 4, 5, 8, 9, 7 lea dstq, [dstq+strideq*2] ; restore from cache SWAP 0, 7 ; move zero from m7 to m0 mova m7, [rsp+32] mova m8, [rsp+64] mova m9, [rsp+96] SUMSUB_BA w, 6, 9, 1 ; t6, t9 SUMSUB_BA w, 7, 8, 1 ; t7, t8 pmulhrsw m6, [pw_512] pmulhrsw m7, [pw_512] VP9_STORE_2X 6, 7, 1, 2, 0 lea dstq, [dstq+strideq*2] pmulhrsw m8, [pw_512] pmulhrsw m9, [pw_512] VP9_STORE_2X 8, 9, 1, 2, 0 lea dstq, [dstq+strideq*2] pmulhrsw m10, [pw_512] pmulhrsw m11, [pw_512] VP9_STORE_2X 10, 11, 1, 2, 0 lea dstq, [dstq+strideq*2] pmulhrsw m12, [pw_512] pmulhrsw m13, [pw_512] VP9_STORE_2X 12, 13, 1, 2, 0 lea dstq, [dstq+strideq*2] pmulhrsw m14, [pw_512] pmulhrsw m15, [pw_512] VP9_STORE_2X 14, 15, 1, 2, 0 %endif ; %2 == 1/2 %endmacro %macro ZERO_BLOCK 4 ; mem, stride, nnzcpl, zero_reg %assign %%y 0 %rep %3 %assign %%x 0 %rep %3*2/mmsize mova [%1+%%y+%%x], %4 %assign %%x (%%x+mmsize) %endrep %assign %%y (%%y+%2) %endrep %endmacro %macro VP9_STORE_2XFULL 6; dc, tmp1, tmp2, tmp3, tmp4, zero mova m%3, [dstq] mova m%5, [dstq+strideq] punpcklbw m%2, m%3, m%6 punpckhbw m%3, m%6 punpcklbw m%4, m%5, m%6 punpckhbw m%5, m%6 paddw m%2, m%1 paddw m%3, m%1 paddw m%4, m%1 paddw m%5, m%1 packuswb m%2, m%3 packuswb m%4, m%5 mova [dstq], m%2 mova [dstq+strideq], m%4 %endmacro INIT_XMM ssse3 cglobal vp9_idct_idct_16x16_add, 4, 5, 16, 512, dst, stride, block, eob ; 2x2=eob=3, 4x4=eob=10 cmp eobd, 38 jg .idctfull cmp eobd, 1 ; faster path for when only DC is set jne .idct8x8 ; dc-only movd m0, [blockq] mova m1, [pw_11585x2] pmulhrsw m0, m1 pmulhrsw m0, m1 SPLATW m0, m0, q0000 pmulhrsw m0, [pw_512] pxor m5, m5 movd [blockq], m5 %rep 7 VP9_STORE_2XFULL 0, 1, 2, 3, 4, 5 lea dstq, [dstq+2*strideq] %endrep VP9_STORE_2XFULL 0, 1, 2, 3, 4, 5 RET .idct8x8: DEFINE_ARGS dst, stride, block, cnt, dst_bak VP9_IDCT16_1D blockq, 1, 8 mov cntd, 2 mov dst_bakq, dstq .loop2_8x8: VP9_IDCT16_1D rsp, 2, 8 lea dstq, [dst_bakq+8] add rsp, 16 dec cntd jg .loop2_8x8 sub rsp, 32 ; at the end of the loop, m0 should still be zero ; use that to zero out block coefficients ZERO_BLOCK blockq, 32, 8, m0 RET .idctfull: DEFINE_ARGS dst, stride, block, cnt, dst_bak mov cntd, 2 .loop1_full: VP9_IDCT16_1D blockq, 1 add blockq, 16 add rsp, 256 dec cntd jg .loop1_full sub blockq, 32 sub rsp, 512 mov cntd, 2 mov dst_bakq, dstq .loop2_full: VP9_IDCT16_1D rsp, 2 lea dstq, [dst_bakq+8] add rsp, 16 dec cntd jg .loop2_full sub rsp, 32 ; at the end of the loop, m0 should still be zero ; use that to zero out block coefficients ZERO_BLOCK blockq, 32, 16, m0 RET %endif ; x86-64