ryan/mozjpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
ffea183e55eab8c3efe2bc5caed3b2f41015d3e6
mozjpeg/simd/loongson/jdsample-mmi.c
DRC 293263c352 Format preprocessor macros more consistently 
Within the libjpeg API code, it seems to be more the convention than not
to separate the macro name and value by two or more spaces, which
improves general readability.  Making this consistent across all of
libjpeg-turbo is less about my individual preferences and more about
making it easy to automatically detect variations from our chosen
formatting convention.  I intend to release the script I'm using to
validate this stuff, once it matures and stabilizes a bit.
2018-03-17 15:19:41 -05:00

246 lines
9.4 KiB
C
Raw Blame History

/*
* Loongson MMI optimizations for libjpeg-turbo
*
* Copyright (C) 2015, 2018, D. R. Commander. All Rights Reserved.
* Copyright (C) 2016-2017, Loongson Technology Corporation Limited, BeiJing.
* All Rights Reserved.
* Authors: ZhuChen <zhuchen@loongson.cn>
* CaiWanwei <caiwanwei@loongson.cn>
* SunZhangzhi <sunzhangzhi-cq@loongson.cn>
*
* Based on the x86 SIMD extension for IJG JPEG library
* Copyright (C) 1999-2006, MIYASAKA Masaru.
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
/* CHROMA UPSAMPLING */
#include "jsimd_mmi.h"
enum const_index {
index_PW_THREE,
index_PW_SEVEN,
index_PW_EIGHT,
};
static uint64_t const_value[] = {
_uint64_set_pi16(3, 3, 3, 3),
_uint64_set_pi16(7, 7, 7, 7),
_uint64_set_pi16(8, 8, 8, 8),
};
#define PW_THREE get_const_value(index_PW_THREE)
#define PW_SEVEN get_const_value(index_PW_SEVEN)
#define PW_EIGHT get_const_value(index_PW_EIGHT)
#define PROCESS_ROW(r) { \
mm7 = _mm_load_si64((__m64 *)outptr##r); /* mm7=IntrL=( 0 1 2 3) */ \
mm3 = _mm_load_si64((__m64 *)outptr##r + 1); /* mm3=IntrH=( 4 5 6 7) */ \
\
mm0 = mm7; \
mm4 = mm3; \
mm0 = _mm_srli_si64(mm0, 2 * BYTE_BIT); /* mm0=( 1 2 3 -) */ \
mm4 = _mm_slli_si64(mm4, (SIZEOF_MMWORD - 2) * BYTE_BIT); /* mm4=( - - - 4) */ \
mm5 = mm7; \
mm6 = mm3; \
mm5 = _mm_srli_si64(mm5, (SIZEOF_MMWORD - 2) * BYTE_BIT); /* mm5=( 3 - - -) */ \
mm6 = _mm_slli_si64(mm6, 2 * BYTE_BIT); /* mm6=( - 4 5 6) */ \
\
mm0 = _mm_or_si64(mm0, mm4); /* mm0=( 1 2 3 4) */ \
mm5 = _mm_or_si64(mm5, mm6); /* mm5=( 3 4 5 6) */ \
\
mm1 = mm7; \
mm2 = mm3; \
mm1 = _mm_slli_si64(mm1, 2 * BYTE_BIT); /* mm1=( - 0 1 2) */ \
mm2 = _mm_srli_si64(mm2, 2 * BYTE_BIT); /* mm2=( 5 6 7 -) */ \
mm4 = mm3; \
mm4 = _mm_srli_si64(mm4, (SIZEOF_MMWORD - 2) * BYTE_BIT); /* mm4=( 7 - - -) */ \
\
mm1 = _mm_or_si64(mm1, wk[r]); /* mm1=(-1 0 1 2) */ \
mm2 = _mm_or_si64(mm2, wk[r + 2]); /* mm2=( 5 6 6 8) */ \
\
wk[r] = mm4; \
\
mm7 = _mm_mullo_pi16(mm7, PW_THREE); \
mm3 = _mm_mullo_pi16(mm3, PW_THREE); \
mm1 = _mm_add_pi16(mm1, PW_EIGHT); \
mm5 = _mm_add_pi16(mm5, PW_EIGHT); \
mm0 = _mm_add_pi16(mm0, PW_SEVEN); \
mm2 = _mm_add_pi16(mm2, PW_SEVEN); \
\
mm1 = _mm_add_pi16(mm1, mm7); \
mm5 = _mm_add_pi16(mm5, mm3); \
mm1 = _mm_srli_pi16(mm1, 4); /* mm1=OutrLE=( 0 2 4 6) */ \
mm5 = _mm_srli_pi16(mm5, 4); /* mm5=OutrHE=( 8 10 12 14) */ \
mm0 = _mm_add_pi16(mm0, mm7); \
mm2 = _mm_add_pi16(mm2, mm3); \
mm0 = _mm_srli_pi16(mm0, 4); /* mm0=OutrLO=( 1 3 5 7) */ \
mm2 = _mm_srli_pi16(mm2, 4); /* mm2=OutrHO=( 9 11 13 15) */ \
\
mm0 = _mm_slli_pi16(mm0, BYTE_BIT); \
mm2 = _mm_slli_pi16(mm2, BYTE_BIT); \
mm1 = _mm_or_si64(mm1, mm0); /* mm1=OutrL=( 0 1 2 3 4 5 6 7) */ \
mm5 = _mm_or_si64(mm5, mm2); /* mm5=OutrH=( 8 9 10 11 12 13 14 15) */ \
\
_mm_store_si64((__m64 *)outptr##r, mm1); \
_mm_store_si64((__m64 *)outptr##r + 1, mm5); \
}
void jsimd_h2v2_fancy_upsample_mmi(int max_v_samp_factor,
JDIMENSION downsampled_width,
JSAMPARRAY input_data,
JSAMPARRAY *output_data_ptr)
{
JSAMPARRAY output_data = *output_data_ptr;
JSAMPROW inptr_1, inptr0, inptr1, outptr0, outptr1;
int inrow, outrow, incol, tmp, tmp1;
__m64 mm0, mm1, mm2, mm3 = 0.0, mm4, mm5, mm6, mm7 = 0.0;
__m64 wk[4], mm_tmp;
for (inrow = 0, outrow = 0; outrow < max_v_samp_factor; inrow++) {
inptr_1 = input_data[inrow - 1];
inptr0 = input_data[inrow];
inptr1 = input_data[inrow + 1];
outptr0 = output_data[outrow++];
outptr1 = output_data[outrow++];
if (downsampled_width & 7) {
tmp = (downsampled_width - 1) * sizeof(JSAMPLE);
tmp1 = downsampled_width * sizeof(JSAMPLE);
asm("daddu $8, %3, %6\r\n"
"lb $9, ($8)\r\n"
"daddu $8, %3, %7\r\n"
"sb $9, ($8)\r\n"
"daddu $8, %4, %6\r\n"
"lb $9, ($8)\r\n"
"daddu $8, %4, %7\r\n"
"sb $9, ($8)\r\n"
"daddu $8, %5, %6\r\n"
"lb $9, ($8)\r\n"
"daddu $8, %5, %7\r\n"
"sb $9, ($8)\r\n"
: "=m" (*inptr_1), "=m" (*inptr0), "=m" (*inptr1)
: "r" (inptr_1), "r" (inptr0), "r" (inptr1), "r" (tmp), "r" (tmp1)
: "$8", "$9"
);
}
/* process the first column block */
mm0 = _mm_load_si64((__m64 *)inptr0); /* mm0 = row[ 0][0] */
mm1 = _mm_load_si64((__m64 *)inptr_1); /* mm1 = row[-1][0] */
mm2 = _mm_load_si64((__m64 *)inptr1); /* mm2 = row[ 1][0] */
mm3 = _mm_xor_si64(mm3, mm3); /* mm3 = (all 0's) */
mm4 = mm0;
mm0 = _mm_unpacklo_pi8(mm0, mm3); /* mm0 = row[ 0][0]( 0 1 2 3) */
mm4 = _mm_unpackhi_pi8(mm4, mm3); /* mm4 = row[ 0][0]( 4 5 6 7) */
mm5 = mm1;
mm1 = _mm_unpacklo_pi8(mm1, mm3); /* mm1 = row[-1][0]( 0 1 2 3) */
mm5 = _mm_unpackhi_pi8(mm5, mm3); /* mm5 = row[-1][0]( 4 5 6 7) */
mm6 = mm2;
mm2 = _mm_unpacklo_pi8(mm2, mm3); /* mm2 = row[+1][0]( 0 1 2 3) */
mm6 = _mm_unpackhi_pi8(mm6, mm3); /* mm6 = row[+1][0]( 4 5 6 7) */
mm0 = _mm_mullo_pi16(mm0, PW_THREE);
mm4 = _mm_mullo_pi16(mm4, PW_THREE);
mm7 = _mm_cmpeq_pi8(mm7, mm7);
mm7 = _mm_srli_si64(mm7, (SIZEOF_MMWORD - 2) * BYTE_BIT);
mm1 = _mm_add_pi16(mm1, mm0); /* mm1=Int0L=( 0 1 2 3) */
mm5 = _mm_add_pi16(mm5, mm4); /* mm5=Int0H=( 4 5 6 7) */
mm2 = _mm_add_pi16(mm2, mm0); /* mm2=Int1L=( 0 1 2 3) */
mm6 = _mm_add_pi16(mm6, mm4); /* mm6=Int1H=( 4 5 6 7) */
_mm_store_si64((__m64 *)outptr0, mm1); /* temporarily save */
_mm_store_si64((__m64 *)outptr0 + 1, mm5); /* the intermediate data */
_mm_store_si64((__m64 *)outptr1, mm2);
_mm_store_si64((__m64 *)outptr1 + 1, mm6);
mm1 = _mm_and_si64(mm1, mm7); /* mm1=( 0 - - -) */
mm2 = _mm_and_si64(mm2, mm7); /* mm2=( 0 - - -) */
wk[0] = mm1;
wk[1] = mm2;
for (incol = downsampled_width; incol > 0;
incol -= 8, inptr_1 += 8, inptr0 += 8, inptr1 += 8,
outptr0 += 16, outptr1 += 16) {
if (incol > 8) {
/* process the next column block */
mm0 = _mm_load_si64((__m64 *)inptr0 + 1); /* mm0 = row[ 0][1] */
mm1 = _mm_load_si64((__m64 *)inptr_1 + 1); /* mm1 = row[-1][1] */
mm2 = _mm_load_si64((__m64 *)inptr1 + 1); /* mm2 = row[+1][1] */
mm3 = _mm_setzero_si64(); /* mm3 = (all 0's) */
mm4 = mm0;
mm0 = _mm_unpacklo_pi8(mm0, mm3); /* mm0 = row[ 0][1]( 0 1 2 3) */
mm4 = _mm_unpackhi_pi8(mm4, mm3); /* mm4 = row[ 0][1]( 4 5 6 7) */
mm5 = mm1;
mm1 = _mm_unpacklo_pi8(mm1, mm3); /* mm1 = row[-1][1]( 0 1 2 3) */
mm5 = _mm_unpackhi_pi8(mm5, mm3); /* mm5 = row[-1][1]( 4 5 6 7) */
mm6 = mm2;
mm2 = _mm_unpacklo_pi8(mm2, mm3); /* mm2 = row[+1][1]( 0 1 2 3) */
mm6 = _mm_unpackhi_pi8(mm6, mm3); /* mm6 = row[+1][1]( 4 5 6 7) */
mm0 = _mm_mullo_pi16(mm0, PW_THREE);
mm4 = _mm_mullo_pi16(mm4, PW_THREE);
mm1 = _mm_add_pi16(mm1, mm0); /* mm1 = Int0L = ( 0 1 2 3) */
mm5 = _mm_add_pi16(mm5, mm4); /* mm5 = Int0H = ( 4 5 6 7) */
mm2 = _mm_add_pi16(mm2, mm0); /* mm2 = Int1L = ( 0 1 2 3) */
mm6 = _mm_add_pi16(mm6, mm4); /* mm6 = Int1H = ( 4 5 6 7) */
_mm_store_si64((__m64 *)outptr0 + 2, mm1); /* temporarily save */
_mm_store_si64((__m64 *)outptr0 + 3, mm5); /* the intermediate data */
_mm_store_si64((__m64 *)outptr1 + 2, mm2);
_mm_store_si64((__m64 *)outptr1 + 3, mm6);
mm1 = _mm_slli_si64(mm1, (SIZEOF_MMWORD - 2) * BYTE_BIT); /* mm1=( - - - 0) */
mm2 = _mm_slli_si64(mm2, (SIZEOF_MMWORD - 2) * BYTE_BIT); /* mm2=( - - - 0) */
wk[2] = mm1;
wk[3] = mm2;
} else {
/* process the last column block */
mm1 = _mm_cmpeq_pi8(mm1, mm1);
mm1 = _mm_slli_si64(mm1, (SIZEOF_MMWORD - 2) * BYTE_BIT);
mm2 = mm1;
mm_tmp = _mm_load_si64((__m64 *)outptr0 + 1);
mm1 = _mm_and_si64(mm1, mm_tmp); /* mm1=( - - - 7) */
mm_tmp = _mm_load_si64((__m64 *)outptr1 + 1);
mm2 = _mm_and_si64(mm2, mm_tmp); /* mm2=( - - - 7) */
wk[2] = mm1;
wk[3] = mm2;
}
/* process the upper row */
PROCESS_ROW(0)
/* process the lower row */
PROCESS_ROW(1)
}
}
}
Reference in New Issue View Git Blame Copy Permalink