1; 2; Copyright (c) 2016 The WebM project authors. All Rights Reserved. 3; 4; Use of this source code is governed by a BSD-style license 5; that can be found in the LICENSE file in the root of the source 6; tree. An additional intellectual property rights grant can be found 7; in the file PATENTS. All contributing project authors may 8; be found in the AUTHORS file in the root of the source tree. 9; 10 11%define private_prefix vp9 12 13%include "third_party/x86inc/x86inc.asm" 14%include "vpx_dsp/x86/bitdepth_conversion_sse2.asm" 15 16SECTION .text 17 18%macro TRANSFORM_COLS 0 19 paddw m0, m1 20 movq m4, m0 21 psubw m3, m2 22 psubw m4, m3 23 psraw m4, 1 24 movq m5, m4 25 psubw m5, m1 ;b1 26 psubw m4, m2 ;c1 27 psubw m0, m4 28 paddw m3, m5 29 ; m0 a0 30 SWAP 1, 4 ; m1 c1 31 SWAP 2, 3 ; m2 d1 32 SWAP 3, 5 ; m3 b1 33%endmacro 34 35%macro TRANSPOSE_4X4 0 36 ; 00 01 02 03 37 ; 10 11 12 13 38 ; 20 21 22 23 39 ; 30 31 32 33 40 punpcklwd m0, m1 ; 00 10 01 11 02 12 03 13 41 punpcklwd m2, m3 ; 20 30 21 31 22 32 23 33 42 mova m1, m0 43 punpckldq m0, m2 ; 00 10 20 30 01 11 21 31 44 punpckhdq m1, m2 ; 02 12 22 32 03 13 23 33 45%endmacro 46 47INIT_XMM sse2 48cglobal fwht4x4, 3, 4, 8, input, output, stride 49 lea r3q, [inputq + strideq*4] 50 movq m0, [inputq] ;a1 51 movq m1, [inputq + strideq*2] ;b1 52 movq m2, [r3q] ;c1 53 movq m3, [r3q + strideq*2] ;d1 54 55 TRANSFORM_COLS 56 TRANSPOSE_4X4 57 SWAP 1, 2 58 psrldq m1, m0, 8 59 psrldq m3, m2, 8 60 TRANSFORM_COLS 61 TRANSPOSE_4X4 62 63 psllw m0, 2 64 psllw m1, 2 65 66 STORE_TRAN_LOW 0, outputq, 0, 2, 3 67 STORE_TRAN_LOW 1, outputq, 8, 2, 3 68 69 RET 70