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FFmpeg/libavcodec/x86/hevc_idct.asm
Andreas Rheinhardt 338f8fd232 avcodec/x86/hevcdsp_init: Remove obsolete MMXEXT functions 
x64 always has MMX, MMXEXT, SSE and SSE2 and this means
that some functions for MMX, MMXEXT and 3dnow are always
overridden by other functions (unless one e.g. explicitly
disables SSE2) for x64. So given that the only systems that
benefit from these functions are truely ancient 32bit x86s
they are removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-06-22 13:31:12 +02:00

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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 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
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_idct_HxW_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
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_DC 12
INIT_IDCT 8, sse2
INIT_IDCT 8, avx
INIT_IDCT 10, sse2
INIT_IDCT 10, avx
;INIT_IDCT 12, sse2
;INIT_IDCT 12, avx
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