52ae97b6aa
This commit enables SSSE3 version full inverse 8x8 2D-DCT and reconstruction. It makes the runtime of vp9_idct8x8_64_add down from 256 cycles (SSE2) to 246 cycles. Change-Id: I0600feac894d6a443a3c9d18daf34156d4e225c3
175 lines
4.7 KiB
NASM
175 lines
4.7 KiB
NASM
;
|
|
; Copyright (c) 2014 The WebM project authors. All Rights Reserved.
|
|
;
|
|
; Use of this source code is governed by a BSD-style license
|
|
; that can be found in the LICENSE file in the root of the source
|
|
; tree. An additional intellectual property rights grant can be found
|
|
; in the file PATENTS. All contributing project authors may
|
|
; be found in the AUTHORS file in the root of the source tree.
|
|
;
|
|
%include "third_party/x86inc/x86inc.asm"
|
|
|
|
; This file provides SSSE3 version of the forward transformation. Part
|
|
; of the macro definitions are originally derived from the ffmpeg project.
|
|
; The current version applies to x86 64-bit only.
|
|
|
|
SECTION_RODATA
|
|
|
|
pw_11585x2: times 8 dw 23170
|
|
pd_8192: times 4 dd 8192
|
|
|
|
%macro TRANSFORM_COEFFS 2
|
|
pw_%1_%2: dw %1, %2, %1, %2, %1, %2, %1, %2
|
|
pw_%2_m%1: dw %2, -%1, %2, -%1, %2, -%1, %2, -%1
|
|
%endmacro
|
|
|
|
TRANSFORM_COEFFS 15137, 6270
|
|
TRANSFORM_COEFFS 16069, 3196
|
|
TRANSFORM_COEFFS 9102, 13623
|
|
|
|
SECTION .text
|
|
|
|
%if ARCH_X86_64
|
|
%macro SUM_SUB 3
|
|
psubw m%3, m%1, m%2
|
|
paddw m%1, m%2
|
|
SWAP %2, %3
|
|
%endmacro
|
|
|
|
; butterfly operation
|
|
%macro MUL_ADD_2X 6 ; dst1, dst2, src, 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 BUTTERFLY_4X 7 ; dst1, dst2, coef1, coef2, round, tmp1, tmp2
|
|
punpckhwd m%6, m%2, m%1
|
|
MUL_ADD_2X %7, %6, %6, %5, [pw_%4_%3], [pw_%3_m%4]
|
|
punpcklwd m%2, m%1
|
|
MUL_ADD_2X %1, %2, %2, %5, [pw_%4_%3], [pw_%3_m%4]
|
|
packssdw m%1, m%7
|
|
packssdw m%2, m%6
|
|
%endmacro
|
|
|
|
; matrix transpose
|
|
%macro INTERLEAVE_2X 4
|
|
punpckh%1 m%4, m%2, m%3
|
|
punpckl%1 m%2, m%3
|
|
SWAP %3, %4
|
|
%endmacro
|
|
|
|
%macro TRANSPOSE8X8 9
|
|
INTERLEAVE_2X wd, %1, %2, %9
|
|
INTERLEAVE_2X wd, %3, %4, %9
|
|
INTERLEAVE_2X wd, %5, %6, %9
|
|
INTERLEAVE_2X wd, %7, %8, %9
|
|
|
|
INTERLEAVE_2X dq, %1, %3, %9
|
|
INTERLEAVE_2X dq, %2, %4, %9
|
|
INTERLEAVE_2X dq, %5, %7, %9
|
|
INTERLEAVE_2X dq, %6, %8, %9
|
|
|
|
INTERLEAVE_2X qdq, %1, %5, %9
|
|
INTERLEAVE_2X qdq, %3, %7, %9
|
|
INTERLEAVE_2X qdq, %2, %6, %9
|
|
INTERLEAVE_2X qdq, %4, %8, %9
|
|
|
|
SWAP %2, %5
|
|
SWAP %4, %7
|
|
%endmacro
|
|
|
|
; 1D forward 8x8 DCT transform
|
|
%macro FDCT8_1D 0
|
|
SUM_SUB 0, 7, 9
|
|
SUM_SUB 1, 6, 9
|
|
SUM_SUB 2, 5, 9
|
|
SUM_SUB 3, 4, 9
|
|
|
|
SUM_SUB 0, 3, 9
|
|
SUM_SUB 1, 2, 9
|
|
SUM_SUB 6, 5, 9
|
|
SUM_SUB 0, 1, 9
|
|
|
|
BUTTERFLY_4X 2, 3, 6270, 15137, m8, 9, 10
|
|
|
|
pmulhrsw m6, m12
|
|
pmulhrsw m5, m12
|
|
pmulhrsw m0, m12
|
|
pmulhrsw m1, m12
|
|
|
|
SUM_SUB 4, 5, 9
|
|
SUM_SUB 7, 6, 9
|
|
BUTTERFLY_4X 4, 7, 3196, 16069, m8, 9, 10
|
|
BUTTERFLY_4X 5, 6, 13623, 9102, m8, 9, 10
|
|
SWAP 1, 4
|
|
SWAP 3, 6
|
|
%endmacro
|
|
|
|
%macro DIVIDE_ROUND_2X 4 ; dst1, dst2, tmp1, tmp2
|
|
psraw m%3, m%1, 15
|
|
psraw m%4, m%2, 15
|
|
psubw m%1, m%3
|
|
psubw m%2, m%4
|
|
psraw m%1, 1
|
|
psraw m%2, 1
|
|
%endmacro
|
|
|
|
INIT_XMM ssse3
|
|
cglobal fdct8x8, 3, 5, 13, input, output, stride
|
|
|
|
mova m8, [pd_8192]
|
|
mova m12, [pw_11585x2]
|
|
pxor m11, m11
|
|
|
|
lea r3, [2 * strideq]
|
|
lea r4, [4 * strideq]
|
|
mova m0, [inputq]
|
|
mova m1, [inputq + r3]
|
|
lea inputq, [inputq + r4]
|
|
mova m2, [inputq]
|
|
mova m3, [inputq + r3]
|
|
lea inputq, [inputq + r4]
|
|
mova m4, [inputq]
|
|
mova m5, [inputq + r3]
|
|
lea inputq, [inputq + r4]
|
|
mova m6, [inputq]
|
|
mova m7, [inputq + r3]
|
|
|
|
; left shift by 2 to increase forward transformation precision
|
|
psllw m0, 2
|
|
psllw m1, 2
|
|
psllw m2, 2
|
|
psllw m3, 2
|
|
psllw m4, 2
|
|
psllw m5, 2
|
|
psllw m6, 2
|
|
psllw m7, 2
|
|
|
|
; column transform
|
|
FDCT8_1D
|
|
TRANSPOSE8X8 0, 1, 2, 3, 4, 5, 6, 7, 9
|
|
|
|
FDCT8_1D
|
|
TRANSPOSE8X8 0, 1, 2, 3, 4, 5, 6, 7, 9
|
|
|
|
DIVIDE_ROUND_2X 0, 1, 9, 10
|
|
DIVIDE_ROUND_2X 2, 3, 9, 10
|
|
DIVIDE_ROUND_2X 4, 5, 9, 10
|
|
DIVIDE_ROUND_2X 6, 7, 9, 10
|
|
|
|
mova [outputq + 0], m0
|
|
mova [outputq + 16], m1
|
|
mova [outputq + 32], m2
|
|
mova [outputq + 48], m3
|
|
mova [outputq + 64], m4
|
|
mova [outputq + 80], m5
|
|
mova [outputq + 96], m6
|
|
mova [outputq + 112], m7
|
|
|
|
RET
|
|
%endif
|