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;******************************************************************************
;* SIMD optimized SAO functions for HEVC decoding
;*
;* Copyright (c) 2013 Pierre-Edouard LEPERE
;* Copyright (c) 2014 James Almer
;*
;* 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"
%if ARCH_X86_64
SECTION_RODATA 32
pw_mask10: times 16 dw 0x03FF
pw_mask12: times 16 dw 0x0FFF
SECTION_TEXT
%macro HEVC_SAO_BAND_FILTER_INIT 1
and leftq, 31
movd xm0, leftd
add leftq, 1
and leftq, 31
movd xm1, leftd
add leftq, 1
and leftq, 31
movd xm2, leftd
add leftq, 1
and leftq, 31
movd xm3, leftd
SPLATW m0, xm0
SPLATW m1, xm1
SPLATW m2, xm2
SPLATW m3, xm3
%if mmsize > 16
SPLATW m4, [offsetq + 2]
SPLATW m5, [offsetq + 4]
SPLATW m6, [offsetq + 6]
SPLATW m7, [offsetq + 8]
%else
movq m7, [offsetq + 2]
SPLATW m4, m7, 0
SPLATW m5, m7, 1
SPLATW m6, m7, 2
SPLATW m7, m7, 3
%endif
%if %1 > 8
mova m13, [pw_mask %+ %1]
%endif
pxor m14, m14
DEFINE_ARGS dst, src, dststride, srcstride, offset, height
mov heightd, r7m
%endmacro
%macro HEVC_SAO_BAND_FILTER_COMPUTE 3
psraw %2, %3, %1-5
pcmpeqw m10, %2, m0
pcmpeqw m11, %2, m1
pcmpeqw m12, %2, m2
pcmpeqw %2, m3
pand m10, m4
pand m11, m5
pand m12, m6
pand %2, m7
por m10, m11
por m12, %2
por m10, m12
paddw %3, m10
%endmacro
;void ff_hevc_sao_band_filter_<width>_8_<opt>(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src,
; int16_t *sao_offset_val, int sao_left_class, int width, int height);
%macro HEVC_SAO_BAND_FILTER_8 2
cglobal hevc_sao_band_filter_%1_8, 6, 6, 15, dst, src, dststride, srcstride, offset, left
HEVC_SAO_BAND_FILTER_INIT 8
align 16
.loop
%if %1 == 8
movq m8, [srcq]
punpcklbw m8, m14
HEVC_SAO_BAND_FILTER_COMPUTE 8, m9, m8
packuswb m8, m14
movq [dstq], m8
%endif ; %1 == 8
%assign i 0
%rep %2
mova m13, [srcq + i]
punpcklbw m8, m13, m14
HEVC_SAO_BAND_FILTER_COMPUTE 8, m9, m8
punpckhbw m13, m14
HEVC_SAO_BAND_FILTER_COMPUTE 8, m9, m13
packuswb m8, m13
mova [dstq + i], m8
%assign i i+mmsize
%endrep
%if %1 == 48
INIT_XMM cpuname
mova m13, [srcq + i]
punpcklbw m8, m13, m14
HEVC_SAO_BAND_FILTER_COMPUTE 8, m9, m8
punpckhbw m13, m14
HEVC_SAO_BAND_FILTER_COMPUTE 8, m9, m13
packuswb m8, m13
mova [dstq + i], m8
%if cpuflag(avx2)
INIT_YMM cpuname
%endif
%endif ; %1 == 48
add dstq, dststrideq ; dst += dststride
add srcq, srcstrideq ; src += srcstride
dec heightd ; cmp height
jnz .loop ; height loop
REP_RET
%endmacro
;void ff_hevc_sao_band_filter_<width>_<depth>_<opt>(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src,
; int16_t *sao_offset_val, int sao_left_class, int width, int height);
%macro HEVC_SAO_BAND_FILTER_16 3
cglobal hevc_sao_band_filter_%2_%1, 6, 6, 15, dst, src, dststride, srcstride, offset, left
HEVC_SAO_BAND_FILTER_INIT %1
align 16
.loop
%if %2 == 8
mova m8, [srcq]
HEVC_SAO_BAND_FILTER_COMPUTE %1, m9, m8
CLIPW m8, m14, m13
mova [dstq], m8
%endif
%assign i 0
%rep %3
mova m8, [srcq + i]
HEVC_SAO_BAND_FILTER_COMPUTE %1, m9, m8
CLIPW m8, m14, m13
mova [dstq + i], m8
mova m9, [srcq + i + mmsize]
HEVC_SAO_BAND_FILTER_COMPUTE %1, m8, m9
CLIPW m9, m14, m13
mova [dstq + i + mmsize], m9
%assign i i+mmsize*2
%endrep
%if %2 == 48
INIT_XMM cpuname
mova m8, [srcq + i]
HEVC_SAO_BAND_FILTER_COMPUTE %1, m9, m8
CLIPW m8, m14, m13
mova [dstq + i], m8
mova m9, [srcq + i + mmsize]
HEVC_SAO_BAND_FILTER_COMPUTE %1, m8, m9
CLIPW m9, m14, m13
mova [dstq + i + mmsize], m9
%if cpuflag(avx2)
INIT_YMM cpuname
%endif
%endif ; %1 == 48
add dstq, dststrideq
add srcq, srcstrideq
dec heightd
jg .loop
REP_RET
%endmacro
%macro HEVC_SAO_BAND_FILTER_FUNCS 0
HEVC_SAO_BAND_FILTER_8 8, 0
HEVC_SAO_BAND_FILTER_8 16, 1
HEVC_SAO_BAND_FILTER_8 32, 2
HEVC_SAO_BAND_FILTER_8 48, 2
HEVC_SAO_BAND_FILTER_8 64, 4
HEVC_SAO_BAND_FILTER_16 10, 8, 0
HEVC_SAO_BAND_FILTER_16 10, 16, 1
HEVC_SAO_BAND_FILTER_16 10, 32, 2
HEVC_SAO_BAND_FILTER_16 10, 48, 2
HEVC_SAO_BAND_FILTER_16 10, 64, 4
HEVC_SAO_BAND_FILTER_16 12, 8, 0
HEVC_SAO_BAND_FILTER_16 12, 16, 1
HEVC_SAO_BAND_FILTER_16 12, 32, 2
HEVC_SAO_BAND_FILTER_16 12, 48, 2
HEVC_SAO_BAND_FILTER_16 12, 64, 4
%endmacro
INIT_XMM sse2
HEVC_SAO_BAND_FILTER_FUNCS
INIT_XMM avx
HEVC_SAO_BAND_FILTER_FUNCS
%if HAVE_AVX2_EXTERNAL
INIT_XMM avx2
HEVC_SAO_BAND_FILTER_8 8, 0
HEVC_SAO_BAND_FILTER_8 16, 1
INIT_YMM avx2
HEVC_SAO_BAND_FILTER_8 32, 1
HEVC_SAO_BAND_FILTER_8 48, 1
HEVC_SAO_BAND_FILTER_8 64, 2
INIT_XMM avx2
HEVC_SAO_BAND_FILTER_16 10, 8, 0
HEVC_SAO_BAND_FILTER_16 10, 16, 1
INIT_YMM avx2
HEVC_SAO_BAND_FILTER_16 10, 32, 1
HEVC_SAO_BAND_FILTER_16 10, 48, 1
HEVC_SAO_BAND_FILTER_16 10, 64, 2
INIT_XMM avx2
HEVC_SAO_BAND_FILTER_16 12, 8, 0
HEVC_SAO_BAND_FILTER_16 12, 16, 1
INIT_YMM avx2
HEVC_SAO_BAND_FILTER_16 12, 32, 1
HEVC_SAO_BAND_FILTER_16 12, 48, 1
HEVC_SAO_BAND_FILTER_16 12, 64, 2
%endif
%endif
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