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ffmpeg/libavcodec/x86/hevc_idct.asm

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;*******************************************************************************
;* SIMD-optimized IDCT functions for HEVC decoding
;* Copyright (c) 2014 Pierre-Edouard LEPERE
;* Copyright (c) 2014 James Almer
;* Copyright (c) 2016 Alexandra Hájková
;*
;* 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
pd_64: times 4 dd 64
pd_2048: times 4 dd 2048
pd_512: times 4 dd 512
; 4x4 transform coeffs
cextern pw_64
pw_64_m64: times 4 dw 64, -64
pw_83_36: times 4 dw 83, 36
pw_36_m83: times 4 dw 36, -83
; 8x8 transform coeffs
pw_89_75: times 4 dw 89, 75
pw_50_18: times 4 dw 50, 18
pw_75_m18: times 4 dw 75, -18
pw_m89_m50: times 4 dw -89, -50
pw_50_m89: times 4 dw 50, -89
pw_18_75: times 4 dw 18, 75
pw_18_m50: times 4 dw 18, -50
pw_75_m89: times 4 dw 75, -89
; 16x16 transformation coeffs
trans_coeffs16: times 4 dw 90, 87
times 4 dw 80, 70
times 4 dw 57, 43
times 4 dw 25, 9
times 4 dw 87, 57
times 4 dw 9, -43
times 4 dw -80, -90
times 4 dw -70, -25
times 4 dw 80, 9
times 4 dw -70, -87
times 4 dw -25, 57
times 4 dw 90, 43
times 4 dw 70, -43
times 4 dw -87, 9
times 4 dw 90, 25
times 4 dw -80, -57
times 4 dw 57, -80
times 4 dw -25, 90
times 4 dw -9, -87
times 4 dw 43, 70
times 4 dw 43, -90
times 4 dw 57, 25
times 4 dw -87, 70
times 4 dw 9, -80
times 4 dw 25, -70
times 4 dw 90, -80
times 4 dw 43, 9
times 4 dw -57, 87
times 4 dw 9, -25
times 4 dw 43, -57
times 4 dw 70, -80
times 4 dw 87, -90
; 32x32 transform coeffs
trans_coeff32: times 8 dw 90
times 4 dw 88, 85
times 4 dw 82, 78
times 4 dw 73, 67
times 4 dw 61, 54
times 4 dw 46, 38
times 4 dw 31, 22
times 4 dw 13, 4
times 4 dw 90, 82
times 4 dw 67, 46
times 4 dw 22, -4
times 4 dw -31, -54
times 4 dw -73, -85
times 4 dw -90, -88
times 4 dw -78, -61
times 4 dw -38, -13
times 4 dw 88, 67
times 4 dw 31, -13
times 4 dw -54, -82
times 4 dw -90, -78
times 4 dw -46, -4
times 4 dw 38, 73
times 4 dw 90, 85
times 4 dw 61, 22
times 4 dw 85, 46
times 4 dw -13, -67
times 4 dw -90, -73
times 4 dw -22, 38
times 4 dw 82, 88
times 4 dw 54, -4
times 4 dw -61, -90
times 4 dw -78, -31
times 4 dw 82, 22
times 4 dw -54, -90
times 4 dw -61, 13
times 4 dw 78, 85
times 4 dw 31, -46
times 4 dw -90, -67
times 4 dw 4, 73
times 4 dw 88, 38
times 4 dw 78, -4
times 4 dw -82, -73
times 4 dw 13, 85
times 4 dw 67, -22
times 4 dw -88, -61
times 4 dw 31, 90
times 4 dw 54, -38
times 4 dw -90, -46
times 4 dw 73, -31
times 4 dw -90, -22
times 4 dw 78, 67
times 4 dw -38, -90
times 4 dw -13, 82
times 4 dw 61, -46
times 4 dw -88, -4
times 4 dw 85, 54
times 4 dw 67, -54
times 4 dw -78, 38
times 4 dw 85, -22
times 4 dw -90, 4
times 4 dw 90, 13
times 4 dw -88, -31
times 4 dw 82, 46
times 4 dw -73, -61
times 4 dw 61, -73
times 4 dw -46, 82
times 4 dw 31, -88
times 4 dw -13, 90
times 4 dw -4, -90
times 4 dw 22, 85
times 4 dw -38, -78
times 4 dw 54, 67
times 4 dw 54, -85
times 4 dw -4, 88
times 4 dw -46, -61
times 4 dw 82, 13
times 4 dw -90, 38
times 4 dw 67, -78
times 4 dw -22, 90
times 4 dw -31, -73
times 4 dw 46, -90
times 4 dw 38, 54
times 4 dw -90, 31
times 4 dw 61, -88
times 4 dw 22, 67
times 4 dw -85, 13
times 4 dw 73, -82
times 4 dw 4, 78
times 4 dw 38, -88
times 4 dw 73, -4
times 4 dw -67, 90
times 4 dw -46, -31
times 4 dw 85, -78
times 4 dw 13, 61
times 4 dw -90, 54
times 4 dw 22, -82
times 4 dw 31, -78
times 4 dw 90, -61
times 4 dw 4, 54
times 4 dw -88, 82
times 4 dw -38, -22
times 4 dw 73, -90
times 4 dw 67, -13
times 4 dw -46, 85
times 4 dw 22, -61
times 4 dw 85, -90
times 4 dw 73, -38
times 4 dw -4, 46
times 4 dw -78, 90
times 4 dw -82, 54
times 4 dw -13, -31
times 4 dw 67, -88
times 4 dw 13, -38
times 4 dw 61, -78
times 4 dw 88, -90
times 4 dw 85, -73
times 4 dw 54, -31
times 4 dw 4, 22
times 4 dw -46, 67
times 4 dw -82, 90
times 4 dw 4, -13
times 4 dw 22, -31
times 4 dw 38, -46
times 4 dw 54, -61
times 4 dw 67, -73
times 4 dw 78, -82
times 4 dw 85, -88
times 4 dw 90, -90
SECTION .text
; void ff_hevc_idctHxW_dc_{8,10}_<opt>(int16_t *coeffs)
; %1 = HxW
; %2 = number of loops
; %3 = bitdepth
%macro IDCT_DC 3
cglobal hevc_idct_%1x%1_dc_%3, 1, 2, 1, coeff, tmp
movsx tmpd, word [coeffq]
add tmpd, (1 << (14 - %3)) + 1
sar tmpd, (15 - %3)
movd xm0, tmpd
SPLATW m0, xm0
DEFINE_ARGS coeff, cnt
mov cntd, %2
.loop:
mova [coeffq+mmsize*0], m0
mova [coeffq+mmsize*1], m0
mova [coeffq+mmsize*2], m0
mova [coeffq+mmsize*3], m0
add coeffq, mmsize*8
mova [coeffq+mmsize*-4], m0
mova [coeffq+mmsize*-3], m0
mova [coeffq+mmsize*-2], m0
mova [coeffq+mmsize*-1], m0
dec cntd
jg .loop
RET
%endmacro
; %1 = HxW
; %2 = bitdepth
%macro IDCT_DC_NL 2 ; No loop
cglobal hevc_idct_%1x%1_dc_%2, 1, 2, 1, coeff, tmp
movsx tmpd, word [coeffq]
add tmpd, (1 << (14 - %2)) + 1
sar tmpd, (15 - %2)
movd m0, tmpd
SPLATW m0, xm0
mova [coeffq+mmsize*0], m0
mova [coeffq+mmsize*1], m0
mova [coeffq+mmsize*2], m0
mova [coeffq+mmsize*3], m0
%if mmsize == 16
mova [coeffq+mmsize*4], m0
mova [coeffq+mmsize*5], m0
mova [coeffq+mmsize*6], m0
mova [coeffq+mmsize*7], m0
%endif
RET
%endmacro
; IDCT 4x4, expects input in m0, m1
; %1 - shift
; %2 - 1/0 - SCALE and Transpose or not
; %3 - 1/0 add constant or not
%macro TR_4x4 3
; interleaves src0 with src2 to m0
; and src1 with scr3 to m2
; src0: 00 01 02 03 m0: 00 20 01 21 02 22 03 23
; src1: 10 11 12 13 -->
; src2: 20 21 22 23 m1: 10 30 11 31 12 32 13 33
; src3: 30 31 32 33
SBUTTERFLY wd, 0, 1, 2
pmaddwd m2, m0, [pw_64] ; e0
pmaddwd m3, m1, [pw_83_36] ; o0
pmaddwd m0, [pw_64_m64] ; e1
pmaddwd m1, [pw_36_m83] ; o1
%if %3 == 1
%assign %%add 1 << (%1 - 1)
mova m4, [pd_ %+ %%add]
paddd m2, m4
paddd m0, m4
%endif
SUMSUB_BADC d, 3, 2, 1, 0, 4
%if %2 == 1
psrad m3, %1 ; e0 + o0
psrad m1, %1 ; e1 + o1
psrad m2, %1 ; e0 - o0
psrad m0, %1 ; e1 - o1
;clip16
packssdw m3, m1
packssdw m0, m2
; Transpose
SBUTTERFLY wd, 3, 0, 1
SBUTTERFLY wd, 3, 0, 1
SWAP 3, 1, 0
%else
SWAP 3, 2, 0
%endif
%endmacro
%macro DEFINE_BIAS 1
%assign shift (20 - %1)
%assign c_add (1 << (shift - 1))
%define arr_add pd_ %+ c_add
%endmacro
; %1 - bit_depth
; %2 - register add constant
; is loaded to
; shift = 20 - bit_depth
%macro LOAD_BIAS 2
DEFINE_BIAS %1
mova %2, [arr_add]
%endmacro
; %1, %2 - registers to load packed 16 bit values to
; %3, %4, %5, %6 - vertical offsets
; %7 - horizontal offset
%macro LOAD_BLOCK 7
movq %1, [r0 + %3 + %7]
movhps %1, [r0 + %5 + %7]
movq %2, [r0 + %4 + %7]
movhps %2, [r0 + %6 + %7]
%endmacro
; void ff_hevc_idct_4x4__{8,10}_<opt>(int16_t *coeffs, int col_limit)
; %1 = bitdepth
%macro IDCT_4x4 1
cglobal hevc_idct_4x4_%1, 1, 1, 5, coeffs
mova m0, [coeffsq]
mova m1, [coeffsq + 16]
TR_4x4 7, 1, 1
TR_4x4 20 - %1, 1, 1
mova [coeffsq], m0
mova [coeffsq + 16], m1
RET
%endmacro
; scale, pack (clip16) and store the residuals 0 e8[0] + o8[0] --> + %1
; 4 at one time (4 columns) 1 e8[1] + o8[1]
; from %5: e8/16 + o8/16, with %1 offset ...
; and %3: e8/16 - o8/16, with %2 offset 6 e8[1] - o8[1]
; %4 - shift 7 e8[0] - o8[0] --> + %2
%macro STORE_8 7
psrad %5, %4
psrad %3, %4
packssdw %5, %3
movq [coeffsq + %1], %5
movhps [coeffsq + %2], %5
%endmacro
; %1 - horizontal offset
; %2 - shift
; %3, %4 - transform coeffs
; %5 - vertical offset for e8 + o8
; %6 - vertical offset for e8 - o8
; %7 - register with e8 inside
; %8 - block_size
; %9 - register to store e8 +o8
; %10 - register to store e8 - o8
%macro E8_O8 10
pmaddwd m6, m4, %3
pmaddwd m7, m5, %4
paddd m6, m7
paddd m7, m6, %7 ; o8 + e8
psubd %7, m6 ; e8 - o8
%if %8 == 8
STORE_8 %5 + %1, %6 + %1, %7, %2, m7, 0, 0
%else
SWAP m7, %9
SWAP %7, %10
%endif
%endmacro
; 8x4 residuals are processed and stored
; %1 - horizontal offset
; %2 - shift
; %3 - offset of the even row
; %4 - step: 1 for 8x8, 2 for 16x16, 4 for 32x32
; %5 - offset of the odd row
; %6 - block size
; %7 - 1/0 add a constant in TR_4x4 or not
; I want to add a constant for 8x8 transform but not for 16x16 and 32x32
%macro TR_8x4 7
; load 4 columns of even rows
LOAD_BLOCK m0, m1, 0, 2 * %4 * %3, %4 * %3, 3 * %4 * %3, %1
TR_4x4 %2, 0, %7 ; e8: m0, m1, m2, m3, for 4 columns only
; load 4 columns of odd rows
LOAD_BLOCK m4, m5, %4 * %5, 3 * %4 * %5, 5 * %4 * %5, 7 * %4 * %5, %1
; 00 01 02 03
; 10 11 12 13 m4: 10 30 11 31 12 32 13 33
; ... -- >
; m5: 50 70 51 71 52 72 53 73
; 70 71 72 73
SBUTTERFLY wd, 4, 5, 6
E8_O8 %1, %2, [pw_89_75], [pw_50_18], 0, %5 * 7, m0, %6, m8, m15
E8_O8 %1, %2, [pw_75_m18], [pw_m89_m50], %5, %5 * 6, m1, %6, m9, m14
E8_O8 %1, %2, [pw_50_m89], [pw_18_75], %5 * 2, %5 * 5, m2, %6, m10, m13
E8_O8 %1, %2, [pw_18_m50], [pw_75_m89], %5 * 3, %5 * 4, m3, %6, m11, m12
%endmacro
%macro STORE_PACKED 7
movq [r0 + %3 + %7], %1
movhps [r0 + %4 + %7], %1
movq [r0 + %5 + %7], %2
movhps [r0 + %6 + %7], %2
%endmacro
; transpose 4x4 block packed
; in %1 and %2 registers
; %3 - temporary register
%macro TRANSPOSE_4x4 3
SBUTTERFLY wd, %1, %2, %3
SBUTTERFLY dq, %1, %2, %3
%endmacro
; %1 - horizontal offset of the block i
; %2 - vertical offset of the block i
; %3 - width in bytes
; %4 - vertical offset for the block j
; %5 - horizontal offset for the block j
%macro SWAP_BLOCKS 5
; M_j
LOAD_BLOCK m4, m5, %4, %4 + %3, %4 + 2 * %3, %4 + 3 * %3, %5
TRANSPOSE_4x4 4, 5, 6
; M_i
LOAD_BLOCK m6, m7, %2, %2 + %3, %2 + 2 * %3, %2 + 3 * %3, %1
STORE_PACKED m4, m5, %2, %2 + %3, %2 + 2 * %3, %2 + 3 * %3, %1
; transpose and store M_i
SWAP m6, m4
SWAP m7, m5
TRANSPOSE_4x4 4, 5, 6
STORE_PACKED m4, m5, %4, %4 + %3, %4 + 2 * %3, %4 + 3 * %3, %5
%endmacro
; %1 - horizontal offset
; %2 - vertical offset of the block
; %3 - width in bytes
%macro TRANSPOSE_BLOCK 3
LOAD_BLOCK m4, m5, %2, %2 + %3, %2 + 2 * %3, %2 + 3 * %3, %1
TRANSPOSE_4x4 4, 5, 6
STORE_PACKED m4, m5, %2, %2 + %3, %2 + 2 * %3, %2 + 3 * %3, %1
%endmacro
%macro TRANSPOSE_8x8 0
cglobal hevc_idct_transpose_8x8, 0, 0, 0
; M1 M2 ^T = M1^t M3^t
; M3 M4 M2^t M4^t
; M1 4x4 block
TRANSPOSE_BLOCK 0, 0, 16
; M2 and M3
SWAP_BLOCKS 0, 64, 16, 0, 8
; M4
TRANSPOSE_BLOCK 8, 64, 16
ret
%endmacro
; void ff_hevc_idct_8x8_{8,10}_<opt>(int16_t *coeffs, int col_limit)
; %1 = bitdepth
%macro IDCT_8x8 1
cglobal hevc_idct_8x8_%1, 1, 1, 8, coeffs
TR_8x4 0, 7, 32, 1, 16, 8, 1
TR_8x4 8, 7, 32, 1, 16, 8, 1
call hevc_idct_transpose_8x8_ %+ cpuname
DEFINE_BIAS %1
TR_8x4 0, shift, 32, 1, 16, 8, 1
TR_8x4 8, shift, 32, 1, 16, 8, 1
TAIL_CALL hevc_idct_transpose_8x8_ %+ cpuname, 1
%endmacro
; store intermedite e32 coeffs on stack
; as 16x4 matrix
; from m10: e8 + o8, with %6 offset
; and %3: e8 - o8, with %7 offset
; %4 - shift, unused here
%macro STORE_16 7
mova [rsp + %6], %5
mova [rsp + %7], %3
%endmacro
; %1, %2 - transform constants
; %3, %4 - regs with interleaved coeffs
; %5 - 1/0 SWAP or add
; %6, %7 - registers for intermidiate sums
; %8 - accumulator register
%macro ADD_ROWS 8
pmaddwd %6, %3, %1
pmaddwd %7, %4, %2
paddd %6, %7
%if %5 == 1
SWAP %6, %8
%else
paddd %8, %6
%endif
%endmacro
; %1 - transform coeffs
; %2, %3 offsets for storing e+o/e-o back to coeffsq
; %4 - shift
; %5 - add
; %6 - block_size
; %7 - register with e16
; %8, %9 - stack offsets for storing e+o/e-o
%macro E16_O16 9
ADD_ROWS [%1], [%1 + 16], m0, m1, 1, m5, m6, m7
ADD_ROWS [%1 + 2 * 16], [%1 + 3 * 16], m2, m3, 0, m5, m6, m7
%if %6 == 8
paddd %7, %5
%endif
paddd m4, m7, %7 ; o16 + e16
psubd %7, m7 ; e16 - o16
STORE_%6 %2, %3, %7, %4, m4, %8, %9
%endmacro
%macro TR_16x4 10
; produce 8x4 matrix of e16 coeffs
; for 4 first rows and store it on stack (128 bytes)
TR_8x4 %1, 7, %4, %5, %6, %8, 0
; load 8 even rows
LOAD_BLOCK m0, m1, %9 * %6, %9 * 3 * %6, %9 * 5 * %6, %9 * 7 * %6, %1
LOAD_BLOCK m2, m3, %9 * 9 * %6, %9 * 11 * %6, %9 * 13 * %6, %9 * 15 * %6, %1
SBUTTERFLY wd, 0, 1, 4
SBUTTERFLY wd, 2, 3, 4
E16_O16 trans_coeffs16, 0 + %1, 15 * %6 + %1, %2, %3, %7, m8, 0, 15 * 16
mova m8, %3
E16_O16 trans_coeffs16 + 64, %6 + %1, 14 * %6 + %1, %2, m8, %7, m9, 16, 14 * 16
E16_O16 trans_coeffs16 + 2 * 64, 2 * %6 + %1, 13 * %6 + %1, %2, m8, %7, m10, 2 * 16, 13 * 16
E16_O16 trans_coeffs16 + 3 * 64, 3 * %6 + %1, 12 * %6 + %1, %2, m8, %7, m11, 3 * 16, 12 * 16
E16_O16 trans_coeffs16 + 4 * 64, 4 * %6 + %1, 11 * %6 + %1, %2, m8, %7, m12, 4 * 16, 11 * 16
E16_O16 trans_coeffs16 + 5 * 64, 5 * %6 + %1, 10 * %6 + %1, %2, m8, %7, m13, 5 * 16, 10 * 16
E16_O16 trans_coeffs16 + 6 * 64, 6 * %6 + %1, 9 * %6 + %1, %2, m8, %7, m14, 6 * 16, 9 * 16
E16_O16 trans_coeffs16 + 7 * 64, 7 * %6 + %1, 8 * %6 + %1, %2, m8, %7, m15, 7 * 16, 8 * 16
%endmacro
%macro TRANSPOSE_16x16 0
cglobal hevc_idct_transpose_16x16, 0, 0, 0
; M1 M2 M3 M4 ^T m1 m5 m9 m13 M_i^T = m_i
; M5 M6 M7 M8 --> m2 m6 m10 m14
; M9 M10 M11 M12 m3 m7 m11 m15
; M13 M14 M15 M16 m4 m8 m12 m16
; M1 4x4 block
TRANSPOSE_BLOCK 0, 0, 32
; M5, M2
SWAP_BLOCKS 0, 128, 32, 0, 8
; M9, M3
SWAP_BLOCKS 0, 256, 32, 0, 16
; M13, M4
SWAP_BLOCKS 0, 384, 32, 0, 24
;M6
TRANSPOSE_BLOCK 8, 128, 32
; M10, M7
SWAP_BLOCKS 8, 256, 32, 128, 16
; M14, M8
SWAP_BLOCKS 8, 384, 32, 128, 24
;M11
TRANSPOSE_BLOCK 16, 256, 32
; M15, M12
SWAP_BLOCKS 16, 384, 32, 256, 24
;M16
TRANSPOSE_BLOCK 24, 384, 32
ret
%endmacro
; void ff_hevc_idct_16x16_{8,10}_<opt>(int16_t *coeffs, int col_limit)
; %1 = bitdepth
%macro IDCT_16x16 1
cglobal hevc_idct_16x16_%1, 1, 2, 16, coeffs
mov r1d, 3
.loop16:
TR_16x4 8 * r1, 7, [pd_64], 64, 2, 32, 8, 16, 1, 0
dec r1d
jge .loop16
call hevc_idct_transpose_16x16_ %+ cpuname
DEFINE_BIAS %1
mov r1d, 3
.loop16_2:
TR_16x4 8 * r1, shift, [arr_add], 64, 2, 32, 8, 16, 1, 1
dec r1d
jge .loop16_2
TAIL_CALL hevc_idct_transpose_16x16_ %+ cpuname, 1
%endmacro
; scale, pack (clip16) and store the residuals 0 e32[0] + o32[0] --> %1
; 4 at one time (4 columns) 1 e32[1] + o32[1]
; %1 - address to store e32 + o32
; %2 - address to store e32 - e32
; %5 - reg with e32 + o32 ...
; %3 - reg with e32 - o32 30 e32[1] - o32[1]
; %4 - shift 31 e32[0] - o32[0] --> %2
%macro STORE_32 5
psrad %5, %4
psrad %3, %4
packssdw %5, %3
movq [%1], %5
movhps [%2], %5
%endmacro
; %1 - transform coeffs
; %2 - stack offset for e32
; %2, %3 offsets for storing e+o/e-o back to coeffsq
; %4 - shift
; %5 - stack offset of e32
%macro E32_O32 5
ADD_ROWS [%1], [%1 + 16], m0, m1, 1, m8, m9, m10
ADD_ROWS [%1 + 2 * 16], [%1 + 3 * 16], m2, m3, 0, m8, m9, m10
ADD_ROWS [%1 + 4 * 16], [%1 + 5 * 16], m4, m5, 0, m8, m9, m10
ADD_ROWS [%1 + 6 * 16], [%1 + 7 * 16], m6, m7, 0, m8, m9, m10
paddd m11, m14, [rsp + %5]
paddd m12, m10, m11 ; o32 + e32
psubd m11, m10 ; e32 - o32
STORE_32 %2, %3, m11, %4, m12
%endmacro
; %1 - horizontal offset
; %2 - bitdepth
%macro TR_32x4 3
TR_16x4 %1, 7, [pd_64], 128, 4, 64, 16, 16, 2, 0
LOAD_BLOCK m0, m1, 64, 3 * 64, 5 * 64, 7 * 64, %1
LOAD_BLOCK m2, m3, 9 * 64, 11 * 64, 13 * 64, 15 * 64, %1
LOAD_BLOCK m4, m5, 17 * 64, 19 * 64, 21 * 64, 23 * 64, %1
LOAD_BLOCK m6, m7, 25 * 64, 27 * 64, 29 * 64, 31 * 64, %1
SBUTTERFLY wd, 0, 1, 8
SBUTTERFLY wd, 2, 3, 8
SBUTTERFLY wd, 4, 5, 8
SBUTTERFLY wd, 6, 7, 8
%if %3 == 1
%assign shift 7
mova m14, [pd_64]
%else
LOAD_BIAS %2, m14
%endif
lea r2, [trans_coeff32 + 15 * 128]
lea r3, [coeffsq + %1]
lea r4, [r3 + 16 * 64]
mov r5d, 15 * 16
%%loop:
E32_O32 r2, r3 + r5 * 4, r4, shift, r5
sub r2, 128
add r4, 64
sub r5d, 16
jge %%loop
%endmacro
%macro TRANSPOSE_32x32 0
cglobal hevc_idct_transpose_32x32, 0, 0, 0
; M0 M1 ... M7
; M8 M15
;
; ...
;
; M56 M63
TRANSPOSE_BLOCK 0, 0, 64 ; M1
mov r1d, 7
mov r2d, 7 * 256
.loop_transpose:
SWAP_BLOCKS 0, r2, 64, 0, r1 * 8
sub r2d, 256
dec r1d
jg .loop_transpose
TRANSPOSE_BLOCK 8, 256, 64 ; M9
mov r1d, 6
mov r2d, 512
mov r3d, 16
.loop_transpose2:
SWAP_BLOCKS 8, r2, 64, 256, r3
add r3d, 8
add r2d, 256
dec r1d
jg .loop_transpose2
TRANSPOSE_BLOCK 2 * 8, 2 * 256, 64 ; M9
mov r1d, 5
mov r2d, 768
mov r3d, 24
.loop_transpose3:
SWAP_BLOCKS 2 * 8, r2, 64, 2 * 256, r3
add r3d, 8
add r2d, 256
dec r1d
jg .loop_transpose3
TRANSPOSE_BLOCK 3 * 8, 3 * 256, 64 ; M27
mov r1d, 4
mov r2d, 1024
mov r3d, 32
.loop_transpose4:
SWAP_BLOCKS 3 * 8, r2, 64, 3 * 256, r3
add r3d, 8
add r2d, 256
dec r1d
jg .loop_transpose4
TRANSPOSE_BLOCK 4 * 8, 4 * 256, 64 ; M36
mov r1d, 3
mov r2d, 1280
mov r3d, 40
.loop_transpose5:
SWAP_BLOCKS 4 * 8, r2, 64, 4 * 256, r3
add r3d, 8
add r2d, 256
dec r1d
jg .loop_transpose5
TRANSPOSE_BLOCK 5 * 8, 5 * 256, 64 ; M45
SWAP_BLOCKS 5 * 8, 6 * 256, 64, 5 * 256, 6 * 8
SWAP_BLOCKS 5 * 8, 7 * 256, 64, 5 * 256, 7 * 8
TRANSPOSE_BLOCK 6 * 8, 6 * 256, 64 ; M54
SWAP_BLOCKS 6 * 8, 7 * 256, 64, 6 * 256, 7 * 8
TRANSPOSE_BLOCK 7 * 8, 7 * 256, 64 ; M63
ret
%endmacro
; void ff_hevc_idct_32x32_{8,10}_<opt>(int16_t *coeffs, int col_limit)
; %1 = bitdepth
%macro IDCT_32x32 1
cglobal hevc_idct_32x32_%1, 1, 6, 16, 256, coeffs
mov r1d, 7
.loop32:
TR_32x4 8 * r1, %1, 1
dec r1d
jge .loop32
call hevc_idct_transpose_32x32_ %+ cpuname
mov r1d, 7
.loop32_2:
TR_32x4 8 * r1, %1, 0
dec r1d
jge .loop32_2
TAIL_CALL hevc_idct_transpose_32x32_ %+ cpuname, 1
%endmacro
%macro INIT_IDCT_DC 1
INIT_MMX mmxext
IDCT_DC_NL 4, %1
IDCT_DC 8, 2, %1
INIT_XMM sse2
IDCT_DC_NL 8, %1
IDCT_DC 16, 4, %1
IDCT_DC 32, 16, %1
%if HAVE_AVX2_EXTERNAL
INIT_YMM avx2
IDCT_DC 16, 2, %1
IDCT_DC 32, 8, %1
%endif ;HAVE_AVX2_EXTERNAL
%endmacro
%macro INIT_IDCT 2
INIT_XMM %2
%if %1 == 8
TRANSPOSE_8x8
%if ARCH_X86_64
TRANSPOSE_16x16
TRANSPOSE_32x32
%endif
%endif
%if ARCH_X86_64
IDCT_32x32 %1
IDCT_16x16 %1
%endif
IDCT_8x8 %1
IDCT_4x4 %1
%endmacro
INIT_IDCT_DC 8
INIT_IDCT_DC 10
INIT_IDCT 8, sse2
INIT_IDCT 8, avx
INIT_IDCT 10, sse2
INIT_IDCT 10, avx
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