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ojph_img_io_avx2.cpp
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//***************************************************************************/
// This software is released under the 2-Clause BSD license, included
// below.
//
// Copyright (c) 2019, Aous Naman
// Copyright (c) 2019, Kakadu Software Pty Ltd, Australia
// Copyright (c) 2019, The University of New South Wales, Australia
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//***************************************************************************/
// This file is part of the OpenJPH software implementation.
// File: ojph_img_io_avx2.cpp
// Author: Aous Naman
// Date: 23 May 2022
//***************************************************************************/
#include "ojph_arch.h"
#if defined(OJPH_ARCH_I386) || defined(OJPH_ARCH_X86_64)
#include <cstdlib>
#include <cstring>
#include <immintrin.h>
#include "ojph_file.h"
#include "ojph_img_io.h"
#include "ojph_mem.h"
#include "ojph_message.h"
namespace ojph {
static
ui16 be2le(const ui16 v)
{
return (ui16)((v<<8) | (v>>8));
}
void avx2_cvrt_32b1c_to_8ub1c(const line_buf *ln0, const line_buf *ln1,
const line_buf *ln2, void *dp,
ui32 bit_depth, ui32 count)
{
ojph_unused(ln1);
ojph_unused(ln2);
__m256i max_val_vec = _mm256_set1_epi32((1 << bit_depth) - 1);
__m256i zero = _mm256_setzero_si256();
__m256i mask = _mm256_set_epi64x(0x0F0B07030E0A0602, 0x0D0905010C080400,
0x0F0B07030E0A0602, 0x0D0905010C080400);
const si32 *sp = ln0->i32;
ui8* p = (ui8 *)dp;
// 32 bytes or entries in each loop
for ( ; count >= 32; count -= 32, sp += 32, p += 32)
{
__m256i a, t, u, v0, v1;
a = _mm256_load_si256((__m256i*)sp);
a = _mm256_max_epi32(a, zero);
t = _mm256_min_epi32(a, max_val_vec);
a = _mm256_load_si256((__m256i*)sp + 1);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 16);
t = _mm256_or_si256(t, a);
a = _mm256_load_si256((__m256i*)sp + 2);
a = _mm256_max_epi32(a, zero);
u = _mm256_min_epi32(a, max_val_vec);
a = _mm256_load_si256((__m256i*)sp + 3);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 16);
u = _mm256_or_si256(u, a);
v0 = _mm256_permute2x128_si256(t, u, 0x20);
v1 = _mm256_permute2x128_si256(t, u, 0x31);
v1 = _mm256_slli_epi32(v1, 8);
v0 = _mm256_or_si256(v0, v1);
v0 = _mm256_shuffle_epi8(v0, mask);
_mm256_storeu_si256((__m256i*)p, v0);
}
int max_val = (1 << bit_depth) - 1;
for ( ; count > 0; --count)
{
int val = *sp++;
val = val >= 0 ? val : 0;
val = val <= max_val ? val : max_val;
*p++ = (ui8)val;
}
}
void avx2_cvrt_32b3c_to_8ub3c(const line_buf *ln0, const line_buf *ln1,
const line_buf *ln2, void *dp,
ui32 bit_depth, ui32 count)
{
int max_val = (1 << bit_depth) - 1;
__m256i max_val_vec = _mm256_set1_epi32(max_val);
__m256i zero = _mm256_setzero_si256();
__m256i m0 = _mm256_set_epi64x((si64)0xFFFFFFFF0E0D0C0A,
(si64)0x0908060504020100,
(si64)0xFFFFFFFF0E0D0C0A,
(si64)0x0908060504020100);
// 32 entries in each loop
const __m256i* sp0 = (__m256i*)ln0->i32;
const __m256i* sp1 = (__m256i*)ln1->i32;
const __m256i* sp2 = (__m256i*)ln2->i32;
ui8* p = (ui8*)dp;
for ( ; count >= 32; count -= 32, sp0 += 4, sp1 += 4, sp2 += 4, p += 96)
{
__m256i a, t, u, v, w;
a = _mm256_load_si256(sp0);
a = _mm256_max_epi32(a, zero);
t = _mm256_min_epi32(a, max_val_vec);
a = _mm256_load_si256(sp1);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 8);
t = _mm256_or_si256(t, a);
a = _mm256_load_si256(sp2);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 16);
t = _mm256_or_si256(t, a);
t = _mm256_shuffle_epi8(t, m0);
a = _mm256_load_si256(sp0 + 1);
a = _mm256_max_epi32(a, zero);
u = _mm256_min_epi32(a, max_val_vec);
a = _mm256_load_si256(sp1 + 1);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 8);
u = _mm256_or_si256(u, a);
a = _mm256_load_si256(sp2 + 1);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 16);
u = _mm256_or_si256(u, a);
u = _mm256_shuffle_epi8(u, m0);
a = _mm256_load_si256(sp0 + 2);
a = _mm256_max_epi32(a, zero);
v = _mm256_min_epi32(a, max_val_vec);
a = _mm256_load_si256(sp1 + 2);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 8);
v = _mm256_or_si256(v, a);
a = _mm256_load_si256(sp2 + 2);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 16);
v = _mm256_or_si256(v, a);
v = _mm256_shuffle_epi8(v, m0);
a = _mm256_load_si256(sp0 + 3);
a = _mm256_max_epi32(a, zero);
w = _mm256_min_epi32(a, max_val_vec);
a = _mm256_load_si256(sp1 + 3);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 8);
w = _mm256_or_si256(w, a);
a = _mm256_load_si256(sp2 + 3);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 16);
w = _mm256_or_si256(w, a);
w = _mm256_shuffle_epi8(w, m0);
_mm_storeu_si128((__m128i*)(p ), _mm256_castsi256_si128(t));
_mm_storeu_si128((__m128i*)(p + 12), _mm256_extracti128_si256(t,1));
_mm_storeu_si128((__m128i*)(p + 24), _mm256_castsi256_si128(u));
_mm_storeu_si128((__m128i*)(p + 36), _mm256_extracti128_si256(u,1));
_mm_storeu_si128((__m128i*)(p + 48), _mm256_castsi256_si128(v));
_mm_storeu_si128((__m128i*)(p + 60), _mm256_extracti128_si256(v,1));
_mm_storeu_si128((__m128i*)(p + 72), _mm256_castsi256_si128(w));
#ifdef OJPH_ARCH_X86_64
*((si64*)(p + 84)) = _mm256_extract_epi64(w, 2);
#elif (defined OJPH_ARCH_I386)
*((si32*)(p + 84)) = _mm256_extract_epi32(w, 4);
*((si32*)(p + 88)) = _mm256_extract_epi32(w, 5);
#else
#error Error unsupport compiler
#endif
*((si32*)(p + 92)) = _mm256_extract_epi32(w, 6);
// this is an alterative slower implementation
//__m256i tx, ux, vx, wx;
//tx = _mm256_permute2x128_si256(t, v, 0x20);
//ux = _mm256_permute2x128_si256(t, v, 0x31);
//vx = _mm256_permute2x128_si256(u, w, 0x20);
//wx = _mm256_permute2x128_si256(u, w, 0x31);
//tx = _mm256_or_si256(tx, _mm256_bslli_epi128(ux, 12));
//ux = _mm256_or_si256(_mm256_bsrli_epi128(ux, 4),
// _mm256_bslli_epi128(vx, 8));
//vx = _mm256_or_si256(_mm256_bsrli_epi128(vx, 8),
// _mm256_bslli_epi128(wx, 4));
//a = _mm256_permute2x128_si256(tx, ux, 0x20);
//_mm256_storeu_si256(p, a);
//a = _mm256_permute2x128_si256(vx, tx, 0x30);
//_mm256_storeu_si256(p + 1, a);
//a = _mm256_permute2x128_si256(ux, vx, 0x31);
//_mm256_storeu_si256(p + 2, a);
}
const si32* ssp0 = (si32*)sp0;
const si32* ssp1 = (si32*)sp1;
const si32* ssp2 = (si32*)sp2;
for ( ; count > 0; --count)
{
int val;
val = *ssp0++;
val = val >= 0 ? val : 0;
val = val <= max_val ? val : max_val;
*p++ = (ui8) val;
val = *ssp1++;
val = val >= 0 ? val : 0;
val = val <= max_val ? val : max_val;
*p++ = (ui8) val;
val = *ssp2++;
val = val >= 0 ? val : 0;
val = val <= max_val ? val : max_val;
*p++ = (ui8) val;
}
}
void avx2_cvrt_32b1c_to_16ub1c_le(const line_buf *ln0, const line_buf *ln1,
const line_buf *ln2, void *dp,
ui32 bit_depth, ui32 count)
{
ojph_unused(ln1);
ojph_unused(ln2);
__m256i max_val_vec = _mm256_set1_epi32((1 << bit_depth) - 1);
__m256i zero = _mm256_setzero_si256();
__m256i mask = _mm256_set_epi64x(0x0F0E0B0A07060302, 0x0D0C090805040100,
0x0F0E0B0A07060302, 0x0D0C090805040100);
const si32 *sp = ln0->i32;
ui16* p = (ui16 *)dp;
// 16 entries in each loop
for ( ; count >= 16; count -= 16, sp += 16, p += 16)
{
__m256i a, t;
a = _mm256_load_si256((__m256i*)sp);
a = _mm256_max_epi32(a, zero);
t = _mm256_min_epi32(a, max_val_vec);
a = _mm256_load_si256((__m256i*)sp + 1);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 16);
t = _mm256_or_si256(t, a);
t = _mm256_shuffle_epi8(t, mask);
t = _mm256_permute4x64_epi64(t, 0xD8);
_mm256_storeu_si256((__m256i*)p, t);
}
int max_val = (1<<bit_depth) - 1;
for ( ; count > 0; --count)
{
int val = *sp++;
val = val >= 0 ? val : 0;
val = val <= max_val ? val : max_val;
*p++ = (ui16) val;
}
}
void avx2_cvrt_32b1c_to_16ub1c_be(const line_buf *ln0, const line_buf *ln1,
const line_buf *ln2, void *dp,
ui32 bit_depth, ui32 count)
{
ojph_unused(ln1);
ojph_unused(ln2);
__m256i max_val_vec = _mm256_set1_epi32((1 << bit_depth) - 1);
__m256i zero = _mm256_setzero_si256();
__m256i mask = _mm256_set_epi64x(0x0E0F0A0B06070203, 0x0C0D080904050001,
0x0E0F0A0B06070203, 0x0C0D080904050001);
const si32 *sp = ln0->i32;
ui16* p = (ui16 *)dp;
// 16 entries in each loop
for ( ; count >= 16; count -= 16, sp += 16, p += 16)
{
__m256i a, t;
a = _mm256_load_si256((__m256i*)sp);
a = _mm256_max_epi32(a, zero);
t = _mm256_min_epi32(a, max_val_vec);
a = _mm256_load_si256((__m256i*)sp + 1);
a = _mm256_max_epi32(a, zero);
a = _mm256_min_epi32(a, max_val_vec);
a = _mm256_slli_epi32(a, 16);
t = _mm256_or_si256(t, a);
t = _mm256_shuffle_epi8(t, mask);
t = _mm256_permute4x64_epi64(t, 0xD8);
_mm256_storeu_si256((__m256i*)p, t);
}
int max_val = (1<<bit_depth) - 1;
for ( ; count > 0; --count)
{
int val = *sp++;
val = val >= 0 ? val : 0;
val = val <= max_val ? val : max_val;
*p++ = be2le((ui16) val);
}
}
}
#endif
ojph::line_buf
Definition ojph_mem.h:161
ojph
Definition ojph_img_io.h:52
ojph::si64
int64_t si64
Definition ojph_defs.h:57
ojph::avx2_cvrt_32b3c_to_8ub3c
void avx2_cvrt_32b3c_to_8ub3c(const line_buf *ln0, const line_buf *ln1, const line_buf *ln2, void *dp, ui32 bit_depth, ui32 count)
ojph::ui16
uint16_t ui16
Definition ojph_defs.h:52
ojph::avx2_cvrt_32b1c_to_16ub1c_be
void avx2_cvrt_32b1c_to_16ub1c_be(const line_buf *ln0, const line_buf *ln1, const line_buf *ln2, void *dp, ui32 bit_depth, ui32 count)
ojph::avx2_cvrt_32b1c_to_8ub1c
void avx2_cvrt_32b1c_to_8ub1c(const line_buf *ln0, const line_buf *ln1, const line_buf *ln2, void *dp, ui32 bit_depth, ui32 count)
ojph::be2le
static ui16 be2le(const ui16 v)
Definition ojph_img_io.cpp:55
ojph::avx2_cvrt_32b1c_to_16ub1c_le
void avx2_cvrt_32b1c_to_16ub1c_le(const line_buf *ln0, const line_buf *ln1, const line_buf *ln2, void *dp, ui32 bit_depth, ui32 count)
ojph::si32
int32_t si32
Definition ojph_defs.h:55
ojph::ui32
uint32_t ui32
Definition ojph_defs.h:54
ojph::ui8
uint8_t ui8
Definition ojph_defs.h:50
ojph_arch.h
ojph_unused
#define ojph_unused(x)
Definition ojph_defs.h:78
ojph_file.h
ojph_img_io.h
ojph_mem.h
ojph_message.h