(JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
JDIMENSION output_row, int num_rows);
+EXTERN(void) jsimd_rgb_gray_convert_mmi
+ (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+ JDIMENSION output_row, int num_rows);
+EXTERN(void) jsimd_extrgb_gray_convert_mmi
+ (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+ JDIMENSION output_row, int num_rows);
+EXTERN(void) jsimd_extrgbx_gray_convert_mmi
+ (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+ JDIMENSION output_row, int num_rows);
+EXTERN(void) jsimd_extbgr_gray_convert_mmi
+ (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+ JDIMENSION output_row, int num_rows);
+EXTERN(void) jsimd_extbgrx_gray_convert_mmi
+ (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+ JDIMENSION output_row, int num_rows);
+EXTERN(void) jsimd_extxbgr_gray_convert_mmi
+ (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+ JDIMENSION output_row, int num_rows);
+EXTERN(void) jsimd_extxrgb_gray_convert_mmi
+ (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+ JDIMENSION output_row, int num_rows);
+
EXTERN(void) jsimd_rgb_gray_convert_altivec
(JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
JDIMENSION output_row, int num_rows);
--- /dev/null
+/*
+ * Loongson MMI optimizations for libjpeg-turbo
+ *
+ * Copyright (C) 2011, 2014, D. R. Commander. All Rights Reserved.
+ * Copyright (C) 2016-2018, Loongson Technology Corporation Limited, BeiJing.
+ * All Rights Reserved.
+ * Authors: ZhangLixia <zhanglixia-hf@loongson.cn>
+ *
+ * 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.
+ */
+
+/* RGB --> GRAYSCALE CONVERSION */
+
+#include "jsimd_mmi.h"
+
+
+#define F_0_114 ((short)7471) /* FIX(0.11400) */
+#define F_0_250 ((short)16384) /* FIX(0.25000) */
+#define F_0_299 ((short)19595) /* FIX(0.29900) */
+#define F_0_587 ((short)38470) /* FIX(0.58700) */
+#define F_0_337 ((short)(F_0_587 - F_0_250)) /* FIX(0.58700) - FIX(0.25000) */
+
+enum const_index {
+ index_PD_ONEHALF,
+ index_PW_F0299_F0337,
+ index_PW_F0114_F0250
+};
+
+static uint64_t const_value[] = {
+ _uint64_set_pi32((int)(1 << (SCALEBITS - 1)), (int)(1 << (SCALEBITS - 1))),
+ _uint64_set_pi16(F_0_337, F_0_299, F_0_337, F_0_299),
+ _uint64_set_pi16(F_0_250, F_0_114, F_0_250, F_0_114)
+};
+
+#define get_const_value(index) (*(__m64 *)&const_value[index])
+
+#define PD_ONEHALF get_const_value(index_PD_ONEHALF)
+#define PW_F0299_F0337 get_const_value(index_PW_F0299_F0337)
+#define PW_F0114_F0250 get_const_value(index_PW_F0114_F0250)
+
+
+#include "jcgryext-mmi.c"
+#undef RGB_RED
+#undef RGB_GREEN
+#undef RGB_BLUE
+#undef RGB_PIXELSIZE
+
+#define RGB_RED EXT_RGB_RED
+#define RGB_GREEN EXT_RGB_GREEN
+#define RGB_BLUE EXT_RGB_BLUE
+#define RGB_PIXELSIZE EXT_RGB_PIXELSIZE
+#define jsimd_rgb_gray_convert_mmi jsimd_extrgb_gray_convert_mmi
+#include "jcgryext-mmi.c"
+#undef RGB_RED
+#undef RGB_GREEN
+#undef RGB_BLUE
+#undef RGB_PIXELSIZE
+#undef jsimd_rgb_gray_convert_mmi
+
+#define RGB_RED EXT_RGBX_RED
+#define RGB_GREEN EXT_RGBX_GREEN
+#define RGB_BLUE EXT_RGBX_BLUE
+#define RGB_PIXELSIZE EXT_RGBX_PIXELSIZE
+#define jsimd_rgb_gray_convert_mmi jsimd_extrgbx_gray_convert_mmi
+#include "jcgryext-mmi.c"
+#undef RGB_RED
+#undef RGB_GREEN
+#undef RGB_BLUE
+#undef RGB_PIXELSIZE
+#undef jsimd_rgb_gray_convert_mmi
+
+#define RGB_RED EXT_BGR_RED
+#define RGB_GREEN EXT_BGR_GREEN
+#define RGB_BLUE EXT_BGR_BLUE
+#define RGB_PIXELSIZE EXT_BGR_PIXELSIZE
+#define jsimd_rgb_gray_convert_mmi jsimd_extbgr_gray_convert_mmi
+#include "jcgryext-mmi.c"
+#undef RGB_RED
+#undef RGB_GREEN
+#undef RGB_BLUE
+#undef RGB_PIXELSIZE
+#undef jsimd_rgb_gray_convert_mmi
+
+#define RGB_RED EXT_BGRX_RED
+#define RGB_GREEN EXT_BGRX_GREEN
+#define RGB_BLUE EXT_BGRX_BLUE
+#define RGB_PIXELSIZE EXT_BGRX_PIXELSIZE
+#define jsimd_rgb_gray_convert_mmi jsimd_extbgrx_gray_convert_mmi
+#include "jcgryext-mmi.c"
+#undef RGB_RED
+#undef RGB_GREEN
+#undef RGB_BLUE
+#undef RGB_PIXELSIZE
+#undef jsimd_rgb_gray_convert_mmi
+
+#define RGB_RED EXT_XBGR_RED
+#define RGB_GREEN EXT_XBGR_GREEN
+#define RGB_BLUE EXT_XBGR_BLUE
+#define RGB_PIXELSIZE EXT_XBGR_PIXELSIZE
+#define jsimd_rgb_gray_convert_mmi jsimd_extxbgr_gray_convert_mmi
+#include "jcgryext-mmi.c"
+#undef RGB_RED
+#undef RGB_GREEN
+#undef RGB_BLUE
+#undef RGB_PIXELSIZE
+#undef jsimd_rgb_gray_convert_mmi
+
+#define RGB_RED EXT_XRGB_RED
+#define RGB_GREEN EXT_XRGB_GREEN
+#define RGB_BLUE EXT_XRGB_BLUE
+#define RGB_PIXELSIZE EXT_XRGB_PIXELSIZE
+#define jsimd_rgb_gray_convert_mmi jsimd_extxrgb_gray_convert_mmi
+#include "jcgryext-mmi.c"
+#undef RGB_RED
+#undef RGB_GREEN
+#undef RGB_BLUE
+#undef RGB_PIXELSIZE
+#undef jsimd_rgb_gray_convert_mmi
--- /dev/null
+/*
+ * Loongson MMI optimizations for libjpeg-turbo
+ *
+ * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+ * Copyright (C) 2014-2015, 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 jcgray-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_rgb_gray_convert_mmi(JDIMENSION image_width, JSAMPARRAY input_buf,
+ JSAMPIMAGE output_buf, JDIMENSION output_row,
+ int num_rows)
+{
+ JSAMPROW inptr, outptr;
+ int num_cols, col;
+ __m64 re, ro, ge, go, be, bo, xe;
+#if RGB_PIXELSIZE == 4
+ __m64 xo;
+#endif
+ __m64 rgle, rghe, rglo, rgho, bgle, bghe, bglo, bgho;
+ __m64 yle_rg, yhe_rg, yle_bg, yhe_bg, yle, yhe, ye;
+ __m64 ylo_rg, yho_rg, ylo_bg, yho_bg, ylo, yho, yo, y;
+
+ while (--num_rows >= 0) {
+ inptr = *input_buf++;
+ outptr = output_buf[0][output_row];
+ output_row++;
+
+ for (num_cols = image_width; num_cols > 0; num_cols -= 8,
+ outptr += 8) {
+
+#if RGB_PIXELSIZE == 3
+
+ if (num_cols < 8) {
+ col = num_cols * 3;
+ asm(".set noreorder\r\n"
+
+ "li $8, 1\r\n"
+ "move $9, %3\r\n"
+ "and $10, $9, $8\r\n"
+ "beqz $10, 1f\r\n"
+ "nop \r\n"
+ "subu $9, $9, 1\r\n"
+ "xor $12, $12, $12\r\n"
+ "move $13, %5\r\n"
+ "dadd $13, $13, $9\r\n"
+ "lbu $12, 0($13)\r\n"
+
+ "1: \r\n"
+ "li $8, 2\r\n"
+ "and $10, $9, $8\r\n"
+ "beqz $10, 2f\r\n"
+ "nop \r\n"
+ "subu $9, $9, 2\r\n"
+ "xor $11, $11, $11\r\n"
+ "move $13, %5\r\n"
+ "dadd $13, $13, $9\r\n"
+ "lhu $11, 0($13)\r\n"
+ "sll $12, $12, 16\r\n"
+ "or $12, $12, $11\r\n"
+
+ "2: \r\n"
+ "dmtc1 $12, %0\r\n"
+ "li $8, 4\r\n"
+ "and $10, $9, $8\r\n"
+ "beqz $10, 3f\r\n"
+ "nop \r\n"
+ "subu $9, $9, 4\r\n"
+ "move $13, %5\r\n"
+ "dadd $13, $13, $9\r\n"
+ "lwu $14, 0($13)\r\n"
+ "dmtc1 $14, %1\r\n"
+ "dsll32 $12, $12, 0\r\n"
+ "or $12, $12, $14\r\n"
+ "dmtc1 $12, %0\r\n"
+
+ "3: \r\n"
+ "li $8, 8\r\n"
+ "and $10, $9, $8\r\n"
+ "beqz $10, 4f\r\n"
+ "nop \r\n"
+ "mov.s %1, %0\r\n"
+ "ldc1 %0, 0(%5)\r\n"
+ "li $9, 8\r\n"
+ "j 5f\r\n"
+ "nop \r\n"
+
+ "4: \r\n"
+ "li $8, 16\r\n"
+ "and $10, $9, $8\r\n"
+ "beqz $10, 5f\r\n"
+ "nop \r\n"
+ "mov.s %2, %0\r\n"
+ "ldc1 %0, 0(%5)\r\n"
+ "ldc1 %1, 8(%5)\r\n"
+
+ "5: \r\n"
+ "nop \r\n"
+ ".set reorder\r\n"
+
+ : "=f" (mmA), "=f" (mmG), "=f" (mmF)
+ : "r" (col), "r" (num_rows), "r" (inptr)
+ : "$f0", "$f2", "$f4", "$8", "$9", "$10", "$11", "$12", "$13",
+ "$14", "memory"
+ );
+ } else {
+ if (!(((long)inptr) & 7)) {
+ mmA = _mm_load_si64((__m64 *)&inptr[0]);
+ mmG = _mm_load_si64((__m64 *)&inptr[8]);
+ mmF = _mm_load_si64((__m64 *)&inptr[16]);
+ } else {
+ mmA = _mm_loadu_si64((__m64 *)&inptr[0]);
+ mmG = _mm_loadu_si64((__m64 *)&inptr[8]);
+ mmF = _mm_loadu_si64((__m64 *)&inptr[16]);
+ }
+ inptr += RGB_PIXELSIZE * 8;
+ }
+ mmD = _mm_srli_si64(mmA, 4 * BYTE_BIT);
+ mmA = _mm_slli_si64(mmA, 4 * BYTE_BIT);
+
+ mmA = _mm_unpackhi_pi8(mmA, mmG);
+ mmG = _mm_slli_si64(mmG, 4 * BYTE_BIT);
+
+ mmD = _mm_unpacklo_pi8(mmD, mmF);
+ mmG = _mm_unpackhi_pi8(mmG, mmF);
+
+ mmE = _mm_srli_si64(mmA, 4 * BYTE_BIT);
+ mmA = _mm_slli_si64(mmA, 4 * BYTE_BIT);
+
+ mmA = _mm_unpackhi_pi8(mmA, mmD);
+ mmD = _mm_slli_si64(mmD, 4 * BYTE_BIT);
+
+ mmE = _mm_unpacklo_pi8(mmE, mmG);
+ mmD = _mm_unpackhi_pi8(mmD, mmG);
+ mmC = _mm_loadhi_pi8_f(mmA);
+ mmA = _mm_loadlo_pi8_f(mmA);
+
+ mmB = _mm_loadhi_pi8_f(mmE);
+ mmE = _mm_loadlo_pi8_f(mmE);
+
+ mmF = _mm_loadhi_pi8_f(mmD);
+ mmD = _mm_loadlo_pi8_f(mmD);
+
+#else /* RGB_PIXELSIZE == 4 */
+
+ if (num_cols < 8) {
+ col = num_cols;
+ asm(".set noreorder\r\n"
+
+ "li $8, 1\r\n"
+ "move $9, %4\r\n"
+ "and $10, $9, $8\r\n"
+ "beqz $10, 1f\r\n"
+ "nop \r\n"
+ "subu $9, $9, 1\r\n"
+ "dsll $11, $9, 2\r\n"
+ "move $13, %5\r\n"
+ "daddu $13, $13, $11\r\n"
+ "lwc1 %0, 0($13)\r\n"
+
+ "1: \r\n"
+ "li $8, 2\r\n"
+ "and $10, $9, $8\r\n"
+ "beqz $10, 2f\r\n"
+ "nop \r\n"
+ "subu $9, $9, 2\r\n"
+ "dsll $11, $9, 2\r\n"
+ "move $13, %5\r\n"
+ "daddu $13, $13, $11\r\n"
+ "mov.s %1, %0\r\n"
+ "ldc1 %0, 0($13)\r\n"
+
+ "2: \r\n"
+ "li $8, 4\r\n"
+ "and $10, $9, $8\r\n"
+ "beqz $10, 3f\r\n"
+ "nop \r\n"
+ "mov.s %2, %0\r\n"
+ "mov.s %3, %1\r\n"
+ "ldc1 %0, 0(%5)\r\n"
+ "ldc1 %1, 8(%5)\r\n"
+
+ "3: \r\n"
+ "nop \r\n"
+ ".set reorder\r\n"
+
+ : "=f" (mmA), "=f" (mmF), "=f" (mmD), "=f" (mmC)
+ : "r" (col), "r" (inptr)
+ : "$f0", "$f2", "$8", "$9", "$10", "$11", "$13", "memory"
+ );
+ } else {
+ mmA = _mm_load_si64((__m64 *)&inptr[0]);
+ mmF = _mm_load_si64((__m64 *)&inptr[8]);
+ mmD = _mm_load_si64((__m64 *)&inptr[16]);
+ mmC = _mm_load_si64((__m64 *)&inptr[24]);
+ inptr += RGB_PIXELSIZE * 8;
+ }
+ mmB = _mm_unpackhi_pi8(mmA, mmF);
+ mmA = _mm_unpacklo_pi8(mmA, mmF);
+
+ mmG = _mm_unpackhi_pi8(mmD, mmC);
+ mmD = _mm_unpacklo_pi8(mmD, mmC);
+
+ mmE = _mm_unpackhi_pi16(mmA, mmD);
+ mmA = _mm_unpacklo_pi16(mmA, mmD);
+
+ mmH = _mm_unpackhi_pi16(mmB, mmG);
+ mmB = _mm_unpacklo_pi16(mmB, mmG);
+
+ mmC = _mm_loadhi_pi8_f(mmA);
+ mmA = _mm_loadlo_pi8_f(mmA);
+
+ mmD = _mm_loadhi_pi8_f(mmB);
+ mmB = _mm_loadlo_pi8_f(mmB);
+
+ mmG = _mm_loadhi_pi8_f(mmE);
+ mmE = _mm_loadlo_pi8_f(mmE);
+
+ mmF = _mm_unpacklo_pi8(mmH, mmH);
+ mmH = _mm_unpackhi_pi8(mmH, mmH);
+ mmF = _mm_srli_pi16(mmF, BYTE_BIT);
+ mmH = _mm_srli_pi16(mmH, BYTE_BIT);
+
+#endif
+
+ /* re=(R0 R2 R4 R6), ge=(G0 G2 G4 G6), be=(B0 B2 B4 B6)
+ * ro=(R1 R3 R5 R7), go=(G1 G3 G5 G7), bo=(B1 B3 B5 B7)
+ *
+ * (Original)
+ * Y = 0.29900 * R + 0.58700 * G + 0.11400 * B
+ *
+ * (This implementation)
+ * Y = 0.29900 * R + 0.33700 * G + 0.11400 * B + 0.25000 * G
+ */
+
+ rglo = _mm_unpacklo_pi16(ro, go);
+ rgho = _mm_unpackhi_pi16(ro, go);
+ ylo_rg = _mm_madd_pi16(rglo, PW_F0299_F0337);
+ yho_rg = _mm_madd_pi16(rgho, PW_F0299_F0337);
+
+ rgle = _mm_unpacklo_pi16(re, ge);
+ rghe = _mm_unpackhi_pi16(re, ge);
+ yle_rg = _mm_madd_pi16(rgle, PW_F0299_F0337);
+ yhe_rg = _mm_madd_pi16(rghe, PW_F0299_F0337);
+
+ bglo = _mm_unpacklo_pi16(bo, go);
+ bgho = _mm_unpackhi_pi16(bo, go);
+ ylo_bg = _mm_madd_pi16(bglo, PW_F0114_F0250);
+ yho_bg = _mm_madd_pi16(bgho, PW_F0114_F0250);
+
+ ylo = _mm_add_pi32(ylo_bg, ylo_rg);
+ yho = _mm_add_pi32(yho_bg, yho_rg);
+ ylo = _mm_add_pi32(ylo, PD_ONEHALF);
+ yho = _mm_add_pi32(yho, PD_ONEHALF);
+ ylo = _mm_srli_pi32(ylo, SCALEBITS);
+ yho = _mm_srli_pi32(yho, SCALEBITS);
+ yo = _mm_packs_pi32(ylo, yho);
+
+ bgle = _mm_unpacklo_pi16(be, ge);
+ bghe = _mm_unpackhi_pi16(be, ge);
+ yle_bg = _mm_madd_pi16(bgle, PW_F0114_F0250);
+ yhe_bg = _mm_madd_pi16(bghe, PW_F0114_F0250);
+
+ yle = _mm_add_pi32(yle_bg, yle_rg);
+ yhe = _mm_add_pi32(yhe_bg, yhe_rg);
+ yle = _mm_add_pi32(yle, PD_ONEHALF);
+ yhe = _mm_add_pi32(yhe, PD_ONEHALF);
+ yle = _mm_srli_pi32(yle, SCALEBITS);
+ yhe = _mm_srli_pi32(yhe, SCALEBITS);
+ ye = _mm_packs_pi32(yle, yhe);
+
+ yo = _mm_slli_pi16(yo, BYTE_BIT);
+ y = _mm_or_si64(ye, yo);
+
+ _mm_store_si64((__m64 *)&outptr[0], y);
+ }
+ }
+}
+
+#undef mmA
+#undef mmB
+#undef mmC
+#undef mmD
+#undef mmE
+#undef mmF
+#undef mmG
+#undef mmH
projects / libjpeg-turbo / commitdiff