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/*
* Loongson MMI optimizations for libjpeg-turbo
*
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* Copyright (C) 2015, 2019, D. R. Commander. All Rights Reserved.
* Copyright (C) 2016-2018, Loongson Technology Corporation Limited, BeiJing.
* All Rights Reserved.
* Authors: ZhangLixia <zhanglixia-hf@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.
*/
/* This file is included by jdmerge-mmi.c */
#if RGB_RED == 0
#define mmA re
#define mmB ro
#elif RGB_GREEN == 0
#define mmA ge
#define mmB go
#elif RGB_BLUE == 0
#define mmA be
#define mmB bo
#else
#define mmA xe
#define mmB xo
#endif
#if RGB_RED == 1
#define mmC re
#define mmD ro
#elif RGB_GREEN == 1
#define mmC ge
#define mmD go
#elif RGB_BLUE == 1
#define mmC be
#define mmD bo
#else
#define mmC xe
#define mmD xo
#endif
#if RGB_RED == 2
#define mmE re
#define mmF ro
#elif RGB_GREEN == 2
#define mmE ge
#define mmF go
#elif RGB_BLUE == 2
#define mmE be
#define mmF bo
#else
#define mmE xe
#define mmF xo
#endif
#if RGB_RED == 3
#define mmG re
#define mmH ro
#elif RGB_GREEN == 3
#define mmG ge
#define mmH go
#elif RGB_BLUE == 3
#define mmG be
#define mmH bo
#else
#define mmG xe
#define mmH xo
#endif
void jsimd_h2v1_merged_upsample_mmi(JDIMENSION output_width,
JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf)
{
JSAMPROW outptr, inptr0, inptr1, inptr2;
int num_cols, col;
__m64 ythise, ythiso, ythis, ynexte, ynexto, ynext, yl, y;
__m64 cbl, cbl2, cbh, cbh2, cb, crl, crl2, crh, crh2, cr;
__m64 rle, rlo, rl, rhe, rho, rh, re, ro;
__m64 ga, gb, gle, glo, gl, gc, gd, ghe, gho, gh, ge, go;
__m64 ble, blo, bl, bhe, bho, bh, be, bo, xe = 0.0, xo = 0.0;
__m64 decenter, mask, zero = 0.0;
#if RGB_PIXELSIZE == 4
__m64 mm8, mm9;
#endif
inptr0 = input_buf[0][in_row_group_ctr];
inptr1 = input_buf[1][in_row_group_ctr];
inptr2 = input_buf[2][in_row_group_ctr];
outptr = output_buf[0];
for (num_cols = output_width >> 1; num_cols > 0; num_cols -= 8,
inptr0 += 16, inptr1 += 8, inptr2 += 8) {
cb = _mm_load_si64((__m64 *)inptr1);
cr = _mm_load_si64((__m64 *)inptr2);
ythis = _mm_load_si64((__m64 *)inptr0);
ynext = _mm_load_si64((__m64 *)inptr0 + 1);
mask = decenter = 0.0;
mask = _mm_cmpeq_pi16(mask, mask);
decenter = _mm_cmpeq_pi16(decenter, decenter);
mask = _mm_srli_pi16(mask, BYTE_BIT); /* {0xFF 0x00 0xFF 0x00 ..} */
decenter = _mm_slli_pi16(decenter, 7); /* {0xFF80 0xFF80 0xFF80 0xFF80} */
cbl = _mm_unpacklo_pi8(cb, zero); /* Cb(0123) */
cbh = _mm_unpackhi_pi8(cb, zero); /* Cb(4567) */
crl = _mm_unpacklo_pi8(cr, zero); /* Cr(0123) */
crh = _mm_unpackhi_pi8(cr, zero); /* Cr(4567) */
cbl = _mm_add_pi16(cbl, decenter);
cbh = _mm_add_pi16(cbh, decenter);
crl = _mm_add_pi16(crl, decenter);
crh = _mm_add_pi16(crh, decenter);
/* (Original)
* R = Y + 1.40200 * Cr
* G = Y - 0.34414 * Cb - 0.71414 * Cr
* B = Y + 1.77200 * Cb
*
* (This implementation)
* R = Y + 0.40200 * Cr + Cr
* G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
* B = Y - 0.22800 * Cb + Cb + Cb
*/
cbl2 = _mm_add_pi16(cbl, cbl); /* 2*CbL */
cbh2 = _mm_add_pi16(cbh, cbh); /* 2*CbH */
crl2 = _mm_add_pi16(crl, crl); /* 2*CrL */
crh2 = _mm_add_pi16(crh, crh); /* 2*CrH */
bl = _mm_mulhi_pi16(cbl2, PW_MF0228); /* (2*CbL * -FIX(0.22800) */
bh = _mm_mulhi_pi16(cbh2, PW_MF0228); /* (2*CbH * -FIX(0.22800) */
rl = _mm_mulhi_pi16(crl2, PW_F0402); /* (2*CrL * FIX(0.40200)) */
rh = _mm_mulhi_pi16(crh2, PW_F0402); /* (2*CrH * FIX(0.40200)) */
bl = _mm_add_pi16(bl, PW_ONE);
bh = _mm_add_pi16(bh, PW_ONE);
bl = _mm_srai_pi16(bl, 1); /* (CbL * -FIX(0.22800)) */
bh = _mm_srai_pi16(bh, 1); /* (CbH * -FIX(0.22800)) */
rl = _mm_add_pi16(rl, PW_ONE);
rh = _mm_add_pi16(rh, PW_ONE);
rl = _mm_srai_pi16(rl, 1); /* (CrL * FIX(0.40200)) */
rh = _mm_srai_pi16(rh, 1); /* (CrH * FIX(0.40200)) */
bl = _mm_add_pi16(bl, cbl);
bh = _mm_add_pi16(bh, cbh);
bl = _mm_add_pi16(bl, cbl); /* (CbL * FIX(1.77200))=(B-Y)L */
bh = _mm_add_pi16(bh, cbh); /* (CbH * FIX(1.77200))=(B-Y)H */
rl = _mm_add_pi16(rl, crl); /* (CrL * FIX(1.40200))=(R-Y)L */
rh = _mm_add_pi16(rh, crh); /* (CrH * FIX(1.40200))=(R-Y)H */
ga = _mm_unpacklo_pi16(cbl, crl);
gb = _mm_unpackhi_pi16(cbl, crl);
ga = _mm_madd_pi16(ga, PW_MF0344_F0285);
gb = _mm_madd_pi16(gb, PW_MF0344_F0285);
gc = _mm_unpacklo_pi16(cbh, crh);
gd = _mm_unpackhi_pi16(cbh, crh);
gc = _mm_madd_pi16(gc, PW_MF0344_F0285);
gd = _mm_madd_pi16(gd, PW_MF0344_F0285);
ga = _mm_add_pi32(ga, PD_ONEHALF);
gb = _mm_add_pi32(gb, PD_ONEHALF);
ga = _mm_srai_pi32(ga, SCALEBITS);
gb = _mm_srai_pi32(gb, SCALEBITS);
gc = _mm_add_pi32(gc, PD_ONEHALF);
gd = _mm_add_pi32(gd, PD_ONEHALF);
gc = _mm_srai_pi32(gc, SCALEBITS);
gd = _mm_srai_pi32(gd, SCALEBITS);
gl = _mm_packs_pi32(ga, gb); /* CbL*-FIX(0.344)+CrL*FIX(0.285) */
gh = _mm_packs_pi32(gc, gd); /* CbH*-FIX(0.344)+CrH*FIX(0.285) */
gl = _mm_sub_pi16(gl, crl); /* CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L */
gh = _mm_sub_pi16(gh, crh); /* CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H */
ythise = _mm_and_si64(mask, ythis); /* Y(0246) */
ythiso = _mm_srli_pi16(ythis, BYTE_BIT); /* Y(1357) */
ynexte = _mm_and_si64(mask, ynext); /* Y(8ACE) */
ynexto = _mm_srli_pi16(ynext, BYTE_BIT); /* Y(9BDF) */
rle = _mm_add_pi16(rl, ythise); /* (R0 R2 R4 R6) */
rlo = _mm_add_pi16(rl, ythiso); /* (R1 R3 R5 R7) */
rhe = _mm_add_pi16(rh, ynexte); /* (R8 RA RC RE) */
rho = _mm_add_pi16(rh, ynexto); /* (R9 RB RD RF) */
re = _mm_packs_pu16(rle, rhe); /* (R0 R2 R4 R6 R8 RA RC RE) */
ro = _mm_packs_pu16(rlo, rho); /* (R1 R3 R5 R7 R9 RB RD RF) */
gle = _mm_add_pi16(gl, ythise); /* (G0 G2 G4 G6) */
glo = _mm_add_pi16(gl, ythiso); /* (G1 G3 G5 G7) */
ghe = _mm_add_pi16(gh, ynexte); /* (G8 GA GC GE) */
gho = _mm_add_pi16(gh, ynexto); /* (G9 GB GD GF) */
ge = _mm_packs_pu16(gle, ghe); /* (G0 G2 G4 G6 G8 GA GC GE) */
go = _mm_packs_pu16(glo, gho); /* (G1 G3 G5 G7 G9 GB GD GF) */
ble = _mm_add_pi16(bl, ythise); /* (B0 B2 B4 B6) */
blo = _mm_add_pi16(bl, ythiso); /* (B1 B3 B5 B7) */
bhe = _mm_add_pi16(bh, ynexte); /* (B8 BA BC BE) */
bho = _mm_add_pi16(bh, ynexto); /* (B9 BB BD BF) */
be = _mm_packs_pu16(ble, bhe); /* (B0 B2 B4 B6 B8 BA BC BE) */
bo = _mm_packs_pu16(blo, bho); /* (B1 B3 B5 B7 B9 BB BD BF) */
#if RGB_PIXELSIZE == 3
/* mmA=(00 02 04 06 08 0A 0C 0E), mmB=(01 03 05 07 09 0B 0D 0F) */
/* mmC=(10 12 14 16 18 1A 1C 1E), mmD=(11 13 15 17 19 1B 1D 1F) */
/* mmE=(20 22 24 26 28 2A 2C 2E), mmF=(21 23 25 27 29 2B 2D 2F) */
mmG = _mm_unpacklo_pi8(mmA, mmC); /* (00 10 02 12 04 14 06 16) */
mmA = _mm_unpackhi_pi8(mmA, mmC); /* (08 18 0A 1A 0C 1C 0E 1E) */
mmH = _mm_unpacklo_pi8(mmE, mmB); /* (20 01 22 03 24 05 26 07) */
mmE = _mm_unpackhi_pi8(mmE, mmB); /* (28 09 2A 0B 2C 0D 2E 0F) */
mmC = _mm_unpacklo_pi8(mmD, mmF); /* (11 21 13 23 15 25 17 27) */
mmD = _mm_unpackhi_pi8(mmD, mmF); /* (19 29 1B 2B 1D 2D 1F 2F) */
mmB = _mm_unpacklo_pi16(mmG, mmA); /* (00 10 08 18 02 12 0A 1A) */
mmA = _mm_unpackhi_pi16(mmG, mmA); /* (04 14 0C 1C 06 16 0E 1E) */
mmF = _mm_unpacklo_pi16(mmH, mmE); /* (20 01 28 09 22 03 2A 0B) */
mmE = _mm_unpackhi_pi16(mmH, mmE); /* (24 05 2C 0D 26 07 2E 0F) */
mmH = _mm_unpacklo_pi16(mmC, mmD); /* (11 21 19 29 13 23 1B 2B) */
mmG = _mm_unpackhi_pi16(mmC, mmD); /* (15 25 1D 2D 17 27 1F 2F) */
mmC = _mm_unpacklo_pi16(mmB, mmF); /* (00 10 20 01 08 18 28 09) */
mmB = _mm_srli_si64(mmB, 4 * BYTE_BIT);
mmB = _mm_unpacklo_pi16(mmH, mmB); /* (11 21 02 12 19 29 0A 1A) */
mmD = _mm_unpackhi_pi16(mmF, mmH); /* (22 03 13 23 2A 0B 1B 2B) */
mmF = _mm_unpacklo_pi16(mmA, mmE); /* (04 14 24 05 0C 1C 2C 0D) */
mmA = _mm_srli_si64(mmA, 4 * BYTE_BIT);
mmH = _mm_unpacklo_pi16(mmG, mmA); /* (15 25 06 16 1D 2D 0E 1E) */
mmG = _mm_unpackhi_pi16(mmE, mmG); /* (26 07 17 27 2E 0F 1F 2F) */
mmA = _mm_unpacklo_pi32(mmC, mmB); /* (00 10 20 01 11 21 02 12) */
mmE = _mm_unpackhi_pi32(mmC, mmB); /* (08 18 28 09 19 29 0A 1A) */
mmB = _mm_unpacklo_pi32(mmD, mmF); /* (22 03 13 23 04 14 24 05) */
mmF = _mm_unpackhi_pi32(mmD, mmF); /* (2A 0B 1B 2B 0C 1C 2C 0D) */
mmC = _mm_unpacklo_pi32(mmH, mmG); /* (15 25 06 16 26 07 17 27) */
mmG = _mm_unpackhi_pi32(mmH, mmG); /* (1D 2D 0E 1E 2E 0F 1F 2F) */
if (num_cols >= 8) {
if (!(((long)outptr) & 7)) {
_mm_store_si64((__m64 *)outptr, mmA);
_mm_store_si64((__m64 *)(outptr + 8), mmB);
_mm_store_si64((__m64 *)(outptr + 16), mmC);
_mm_store_si64((__m64 *)(outptr + 24), mmE);
_mm_store_si64((__m64 *)(outptr + 32), mmF);
_mm_store_si64((__m64 *)(outptr + 40), mmG);
} else {
_mm_storeu_si64((__m64 *)outptr, mmA);
_mm_storeu_si64((__m64 *)(outptr + 8), mmB);
_mm_storeu_si64((__m64 *)(outptr + 16), mmC);
_mm_storeu_si64((__m64 *)(outptr + 24), mmE);
_mm_storeu_si64((__m64 *)(outptr + 32), mmF);
_mm_storeu_si64((__m64 *)(outptr + 40), mmG);
}
outptr += RGB_PIXELSIZE * 16;
} else {
if (output_width & 1)
col = num_cols * 6 + 3;
else
col = num_cols * 6;
asm(".set noreorder\r\n" /* st24 */
"li $8, 24\r\n"
"move $9, %7\r\n"
"mov.s $f4, %1\r\n"
"mov.s $f6, %2\r\n"
"mov.s $f8, %3\r\n"
"move $10, %8\r\n"
"bltu $9, $8, 1f\r\n"
"nop \r\n"
"gssdlc1 $f4, 7($10)\r\n"
"gssdrc1 $f4, 0($10)\r\n"
"gssdlc1 $f6, 7+8($10)\r\n"
"gssdrc1 $f6, 8($10)\r\n"
"gssdlc1 $f8, 7+16($10)\r\n"
"gssdrc1 $f8, 16($10)\r\n"
"mov.s $f4, %4\r\n"
"mov.s $f6, %5\r\n"
"mov.s $f8, %6\r\n"
"subu $9, $9, 24\r\n"
PTR_ADDU "$10, $10, 24\r\n"
"1: \r\n"
"li $8, 16\r\n" /* st16 */
"bltu $9, $8, 2f\r\n"
"nop \r\n"
"gssdlc1 $f4, 7($10)\r\n"
"gssdrc1 $f4, 0($10)\r\n"
"gssdlc1 $f6, 7+8($10)\r\n"
"gssdrc1 $f6, 8($10)\r\n"
"mov.s $f4, $f8\r\n"
"subu $9, $9, 16\r\n"
PTR_ADDU "$10, $10, 16\r\n"
"2: \r\n"
"li $8, 8\r\n" /* st8 */
"bltu $9, $8, 3f\r\n"
"nop \r\n"
"gssdlc1 $f4, 7($10)\r\n"
"gssdrc1 $f4, 0($10)\r\n"
"mov.s $f4, $f6\r\n"
"subu $9, $9, 8\r\n"
PTR_ADDU "$10, $10, 8\r\n"
"3: \r\n"
"li $8, 4\r\n" /* st4 */
"mfc1 $11, $f4\r\n"
"bltu $9, $8, 4f\r\n"
"nop \r\n"
"swl $11, 3($10)\r\n"
"swr $11, 0($10)\r\n"
"li $8, 32\r\n"
"mtc1 $8, $f6\r\n"
"dsrl $f4, $f4, $f6\r\n"
"mfc1 $11, $f4\r\n"
"subu $9, $9, 4\r\n"
PTR_ADDU "$10, $10, 4\r\n"
"4: \r\n"
"li $8, 2\r\n" /* st2 */
"bltu $9, $8, 5f\r\n"
"nop \r\n"
"ush $11, 0($10)\r\n"
"srl $11, 16\r\n"
"subu $9, $9, 2\r\n"
PTR_ADDU "$10, $10, 2\r\n"
"5: \r\n"
"li $8, 1\r\n" /* st1 */
"bltu $9, $8, 6f\r\n"
"nop \r\n"
"sb $11, 0($10)\r\n"
"6: \r\n"
"nop \r\n" /* end */
: "=m" (*outptr)
: "f" (mmA), "f" (mmB), "f" (mmC), "f" (mmE), "f" (mmF),
"f" (mmG), "r" (col), "r" (outptr)
: "$f4", "$f6", "$f8", "$8", "$9", "$10", "$11", "memory"
);
}
#else /* RGB_PIXELSIZE == 4 */
#ifdef RGBX_FILLER_0XFF
xe = _mm_cmpeq_pi8(xe, xe);
xo = _mm_cmpeq_pi8(xo, xo);
#else
xe = _mm_xor_si64(xe, xe);
xo = _mm_xor_si64(xo, xo);
#endif
/* mmA=(00 02 04 06 08 0A 0C 0E), mmB=(01 03 05 07 09 0B 0D 0F) */
/* mmC=(10 12 14 16 18 1A 1C 1E), mmD=(11 13 15 17 19 1B 1D 1F) */
/* mmE=(20 22 24 26 28 2A 2C 2E), mmF=(21 23 25 27 29 2B 2D 2F) */
/* mmG=(30 32 34 36 38 3A 3C 3E), mmH=(31 33 35 37 39 3B 3D 3F) */
mm8 = _mm_unpacklo_pi8(mmA, mmC); /* (00 10 02 12 04 14 06 16) */
mm9 = _mm_unpackhi_pi8(mmA, mmC); /* (08 18 0A 1A 0C 1C 0E 1E) */
mmA = _mm_unpacklo_pi8(mmE, mmG); /* (20 30 22 32 24 34 26 36) */
mmE = _mm_unpackhi_pi8(mmE, mmG); /* (28 38 2A 3A 2C 3C 2E 3E) */
mmG = _mm_unpacklo_pi8(mmB, mmD); /* (01 11 03 13 05 15 07 17) */
mmB = _mm_unpackhi_pi8(mmB, mmD); /* (09 19 0B 1B 0D 1D 0F 1F) */
mmD = _mm_unpacklo_pi8(mmF, mmH); /* (21 31 23 33 25 35 27 37) */
mmF = _mm_unpackhi_pi8(mmF, mmH); /* (29 39 2B 3B 2D 3D 2F 3F) */
mmH = _mm_unpacklo_pi16(mm8, mmA); /* (00 10 20 30 02 12 22 32) */
mm8 = _mm_unpackhi_pi16(mm8, mmA); /* (04 14 24 34 06 16 26 36) */
mmA = _mm_unpacklo_pi16(mmG, mmD); /* (01 11 21 31 03 13 23 33) */
mmD = _mm_unpackhi_pi16(mmG, mmD); /* (05 15 25 35 07 17 27 37) */
mmG = _mm_unpackhi_pi16(mm9, mmE); /* (0C 1C 2C 3C 0E 1E 2E 3E) */
mm9 = _mm_unpacklo_pi16(mm9, mmE); /* (08 18 28 38 0A 1A 2A 3A) */
mmE = _mm_unpacklo_pi16(mmB, mmF); /* (09 19 29 39 0B 1B 2B 3B) */
mmF = _mm_unpackhi_pi16(mmB, mmF); /* (0D 1D 2D 3D 0F 1F 2F 3F) */
mmB = _mm_unpackhi_pi32(mmH, mmA); /* (02 12 22 32 03 13 23 33) */
mmA = _mm_unpacklo_pi32(mmH, mmA); /* (00 10 20 30 01 11 21 31) */
mmC = _mm_unpacklo_pi32(mm8, mmD); /* (04 14 24 34 05 15 25 35) */
mmD = _mm_unpackhi_pi32(mm8, mmD); /* (06 16 26 36 07 17 27 37) */
mmH = _mm_unpackhi_pi32(mmG, mmF); /* (0E 1E 2E 3E 0F 1F 2F 3F) */
mmG = _mm_unpacklo_pi32(mmG, mmF); /* (0C 1C 2C 3C 0D 1D 2D 3D) */
mmF = _mm_unpackhi_pi32(mm9, mmE); /* (0A 1A 2A 3A 0B 1B 2B 3B) */
mmE = _mm_unpacklo_pi32(mm9, mmE); /* (08 18 28 38 09 19 29 39) */
if (num_cols >= 8) {
if (!(((long)outptr) & 7)) {
_mm_store_si64((__m64 *)outptr, mmA);
_mm_store_si64((__m64 *)(outptr + 8), mmB);
_mm_store_si64((__m64 *)(outptr + 16), mmC);
_mm_store_si64((__m64 *)(outptr + 24), mmD);
_mm_store_si64((__m64 *)(outptr + 32), mmE);
_mm_store_si64((__m64 *)(outptr + 40), mmF);
_mm_store_si64((__m64 *)(outptr + 48), mmG);
_mm_store_si64((__m64 *)(outptr + 56), mmH);
} else {
_mm_storeu_si64((__m64 *)outptr, mmA);
_mm_storeu_si64((__m64 *)(outptr + 8), mmB);
_mm_storeu_si64((__m64 *)(outptr + 16), mmC);
_mm_storeu_si64((__m64 *)(outptr + 24), mmD);
_mm_storeu_si64((__m64 *)(outptr + 32), mmE);
_mm_storeu_si64((__m64 *)(outptr + 40), mmF);
_mm_storeu_si64((__m64 *)(outptr + 48), mmG);
_mm_storeu_si64((__m64 *)(outptr + 56), mmH);
}
outptr += RGB_PIXELSIZE * 16;
} else {
if (output_width & 1)
col = num_cols * 2 + 1;
else
col = num_cols * 2;
asm(".set noreorder\r\n" /* st32 */
"li $8, 8\r\n"
"move $9, %10\r\n"
"move $10, %11\r\n"
"mov.s $f4, %2\r\n"
"mov.s $f6, %3\r\n"
"mov.s $f8, %4\r\n"
"mov.s $f10, %5\r\n"
"bltu $9, $8, 1f\r\n"
"nop \r\n"
"gssdlc1 $f4, 7($10)\r\n"
"gssdrc1 $f4, 0($10)\r\n"
"gssdlc1 $f6, 7+8($10)\r\n"
"gssdrc1 $f6, 8($10)\r\n"
"gssdlc1 $f8, 7+16($10)\r\n"
"gssdrc1 $f8, 16($10)\r\n"
"gssdlc1 $f10, 7+24($10)\r\n"
"gssdrc1 $f10, 24($10)\r\n"
"mov.s $f4, %6\r\n"
"mov.s $f6, %7\r\n"
"mov.s $f8, %8\r\n"
"mov.s $f10, %9\r\n"
"subu $9, $9, 8\r\n"
PTR_ADDU "$10, $10, 32\r\n"
"1: \r\n"
"li $8, 4\r\n" /* st16 */
"bltu $9, $8, 2f\r\n"
"nop \r\n"
"gssdlc1 $f4, 7($10)\r\n"
"gssdrc1 $f4, 0($10)\r\n"
"gssdlc1 $f6, 7+8($10)\r\n"
"gssdrc1 $f6, 8($10)\r\n"
"mov.s $f4, $f8\r\n"
"mov.s $f6, $f10\r\n"
"subu $9, $9, 4\r\n"
PTR_ADDU "$10, $10, 16\r\n"
"2: \r\n"
"li $8, 2\r\n" /* st8 */
"bltu $9, $8, 3f\r\n"
"nop \r\n"
"gssdlc1 $f4, 7($10)\r\n"
"gssdrc1 $f4, 0($10)\r\n"
"mov.s $f4, $f6\r\n"
"subu $9, $9, 2\r\n"
PTR_ADDU "$10, $10, 8\r\n"
"3: \r\n"
"li $8, 1\r\n" /* st4 */
"bltu $9, $8, 4f\r\n"
"nop \r\n"
"gsswlc1 $f4, 3($10)\r\n"
"gsswrc1 $f4, 0($10)\r\n"
"4: \r\n"
"li %1, 0\r\n" /* end */
: "=m" (*outptr), "=r" (col)
: "f" (mmA), "f" (mmB), "f" (mmC), "f" (mmD), "f" (mmE), "f" (mmF),
"f" (mmG), "f" (mmH), "r" (col), "r" (outptr)
: "$f4", "$f6", "$f8", "$f10", "$8", "$9", "$10", "memory"
);
}
#endif
}
if (!((output_width >> 1) & 7)) {
if (output_width & 1) {
cb = _mm_load_si64((__m64 *)inptr1);
cr = _mm_load_si64((__m64 *)inptr2);
y = _mm_load_si64((__m64 *)inptr0);
decenter = 0.0;
decenter = _mm_cmpeq_pi16(decenter, decenter);
decenter = _mm_slli_pi16(decenter, 7); /* {0xFF80 0xFF80 0xFF80 0xFF80} */
cbl = _mm_unpacklo_pi8(cb, zero); /* Cb(0123) */
crl = _mm_unpacklo_pi8(cr, zero); /* Cr(0123) */
cbl = _mm_add_pi16(cbl, decenter);
crl = _mm_add_pi16(crl, decenter);
cbl2 = _mm_add_pi16(cbl, cbl); /* 2*CbL */
crl2 = _mm_add_pi16(crl, crl); /* 2*CrL */
bl = _mm_mulhi_pi16(cbl2, PW_MF0228); /* (2*CbL * -FIX(0.22800) */
rl = _mm_mulhi_pi16(crl2, PW_F0402); /* (2*CrL * FIX(0.40200)) */
bl = _mm_add_pi16(bl, PW_ONE);
bl = _mm_srai_pi16(bl, 1); /* (CbL * -FIX(0.22800)) */
rl = _mm_add_pi16(rl, PW_ONE);
rl = _mm_srai_pi16(rl, 1); /* (CrL * FIX(0.40200)) */
bl = _mm_add_pi16(bl, cbl);
bl = _mm_add_pi16(bl, cbl); /* (CbL * FIX(1.77200))=(B-Y)L */
rl = _mm_add_pi16(rl, crl); /* (CrL * FIX(1.40200))=(R-Y)L */
gl = _mm_unpacklo_pi16(cbl, crl);
gl = _mm_madd_pi16(gl, PW_MF0344_F0285);
gl = _mm_add_pi32(gl, PD_ONEHALF);
gl = _mm_srai_pi32(gl, SCALEBITS);
gl = _mm_packs_pi32(gl, zero); /* CbL*-FIX(0.344)+CrL*FIX(0.285) */
gl = _mm_sub_pi16(gl, crl); /* CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L */
yl = _mm_unpacklo_pi8(y, zero); /* Y(0123) */
rl = _mm_add_pi16(rl, yl); /* (R0 R1 R2 R3) */
gl = _mm_add_pi16(gl, yl); /* (G0 G1 G2 G3) */
bl = _mm_add_pi16(bl, yl); /* (B0 B1 B2 B3) */
re = _mm_packs_pu16(rl, rl);
ge = _mm_packs_pu16(gl, gl);
be = _mm_packs_pu16(bl, bl);
#if RGB_PIXELSIZE == 3
mmA = _mm_unpacklo_pi8(mmA, mmC);
mmA = _mm_unpacklo_pi16(mmA, mmE);
asm(".set noreorder\r\n"
"move $8, %2\r\n"
"mov.s $f4, %1\r\n"
"mfc1 $9, $f4\r\n"
"ush $9, 0($8)\r\n"
"srl $9, 16\r\n"
"sb $9, 2($8)\r\n"
: "=m" (*outptr)
: "f" (mmA), "r" (outptr)
: "$f4", "$8", "$9", "memory"
);
#else /* RGB_PIXELSIZE == 4 */
#ifdef RGBX_FILLER_0XFF
xe = _mm_cmpeq_pi8(xe, xe);
#else
xe = _mm_xor_si64(xe, xe);
#endif
mmA = _mm_unpacklo_pi8(mmA, mmC);
mmE = _mm_unpacklo_pi8(mmE, mmG);
mmA = _mm_unpacklo_pi16(mmA, mmE);
asm(".set noreorder\r\n"
"move $8, %2\r\n"
"mov.s $f4, %1\r\n"
"gsswlc1 $f4, 3($8)\r\n"
"gsswrc1 $f4, 0($8)\r\n"
: "=m" (*outptr)
: "f" (mmA), "r" (outptr)
: "$f4", "$8", "memory"
);
#endif
}
}
}
void jsimd_h2v2_merged_upsample_mmi(JDIMENSION output_width,
JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf)
{
JSAMPROW inptr, outptr;
inptr = input_buf[0][in_row_group_ctr];
outptr = output_buf[0];
input_buf[0][in_row_group_ctr] = input_buf[0][in_row_group_ctr * 2];
jsimd_h2v1_merged_upsample_mmi(output_width, input_buf, in_row_group_ctr,
output_buf);
input_buf[0][in_row_group_ctr] = input_buf[0][in_row_group_ctr * 2 + 1];
output_buf[0] = output_buf[1];
jsimd_h2v1_merged_upsample_mmi(output_width, input_buf, in_row_group_ctr,
output_buf);
input_buf[0][in_row_group_ctr] = inptr;
output_buf[0] = outptr;
}
#undef mmA
#undef mmB
#undef mmC
#undef mmD
#undef mmE
#undef mmF
#undef mmG
#undef mmH
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