bd96b30b74
* Modify the SIMD dispatchers so they guard their usage of getenv() with the existing NO_GETENV preprocessor definition. * Introduce a new NO_PUTENV preprocessor definition to guard the usage of putenv() in the TurboJPEG API library. This at least puts Windows Store compatibility within the realm of possibility, although further steps are required.
733 lines
15 KiB
C
733 lines
15 KiB
C
/*
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* jsimd_arm.c
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*
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* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
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* Copyright (C) 2011, Nokia Corporation and/or its subsidiary(-ies).
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* Copyright (C) 2009-2011, 2013-2014, 2016, 2018, D. R. Commander.
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* Copyright (C) 2015-2016, Matthieu Darbois.
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*
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* Based on the x86 SIMD extension for IJG JPEG library,
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* Copyright (C) 1999-2006, MIYASAKA Masaru.
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* For conditions of distribution and use, see copyright notice in jsimdext.inc
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*
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* This file contains the interface between the "normal" portions
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* of the library and the SIMD implementations when running on a
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* 32-bit ARM architecture.
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*/
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#define JPEG_INTERNALS
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#include "../jinclude.h"
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#include "../jpeglib.h"
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#include "../jsimd.h"
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#include "../jdct.h"
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#include "../jsimddct.h"
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#include "jsimd.h"
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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static unsigned int simd_support = ~0;
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static unsigned int simd_huffman = 1;
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#if defined(__linux__) || defined(ANDROID) || defined(__ANDROID__)
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#define SOMEWHAT_SANE_PROC_CPUINFO_SIZE_LIMIT (1024 * 1024)
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LOCAL(int)
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check_feature (char *buffer, char *feature)
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{
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char *p;
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if (*feature == 0)
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return 0;
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if (strncmp(buffer, "Features", 8) != 0)
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return 0;
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buffer += 8;
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while (isspace(*buffer))
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buffer++;
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/* Check if 'feature' is present in the buffer as a separate word */
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while ((p = strstr(buffer, feature))) {
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if (p > buffer && !isspace(*(p - 1))) {
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buffer++;
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continue;
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}
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p += strlen(feature);
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if (*p != 0 && !isspace(*p)) {
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buffer++;
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continue;
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}
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return 1;
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}
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return 0;
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}
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LOCAL(int)
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parse_proc_cpuinfo (int bufsize)
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{
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char *buffer = (char *)malloc(bufsize);
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FILE *fd;
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simd_support = 0;
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if (!buffer)
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return 0;
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fd = fopen("/proc/cpuinfo", "r");
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if (fd) {
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while (fgets(buffer, bufsize, fd)) {
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if (!strchr(buffer, '\n') && !feof(fd)) {
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/* "impossible" happened - insufficient size of the buffer! */
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fclose(fd);
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free(buffer);
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return 0;
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}
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if (check_feature(buffer, "neon"))
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simd_support |= JSIMD_ARM_NEON;
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}
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fclose(fd);
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}
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free(buffer);
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return 1;
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}
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#endif
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/*
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* Check what SIMD accelerations are supported.
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*
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* FIXME: This code is racy under a multi-threaded environment.
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*/
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LOCAL(void)
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init_simd (void)
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{
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#ifndef NO_GETENV
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char *env = NULL;
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#endif
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#if !defined(__ARM_NEON__) && defined(__linux__) || defined(ANDROID) || defined(__ANDROID__)
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int bufsize = 1024; /* an initial guess for the line buffer size limit */
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#endif
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if (simd_support != ~0U)
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return;
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simd_support = 0;
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#if defined(__ARM_NEON__)
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simd_support |= JSIMD_ARM_NEON;
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#elif defined(__linux__) || defined(ANDROID) || defined(__ANDROID__)
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/* We still have a chance to use NEON regardless of globally used
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* -mcpu/-mfpu options passed to gcc by performing runtime detection via
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* /proc/cpuinfo parsing on linux/android */
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while (!parse_proc_cpuinfo(bufsize)) {
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bufsize *= 2;
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if (bufsize > SOMEWHAT_SANE_PROC_CPUINFO_SIZE_LIMIT)
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break;
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}
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#endif
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#ifndef NO_GETENV
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/* Force different settings through environment variables */
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env = getenv("JSIMD_FORCENEON");
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if ((env != NULL) && (strcmp(env, "1") == 0))
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simd_support = JSIMD_ARM_NEON;
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env = getenv("JSIMD_FORCENONE");
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if ((env != NULL) && (strcmp(env, "1") == 0))
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simd_support = 0;
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env = getenv("JSIMD_NOHUFFENC");
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if ((env != NULL) && (strcmp(env, "1") == 0))
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simd_huffman = 0;
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#endif
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}
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GLOBAL(int)
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jsimd_can_rgb_ycc (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
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return 0;
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if (simd_support & JSIMD_ARM_NEON)
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_rgb_gray (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_ycc_rgb (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
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return 0;
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if (simd_support & JSIMD_ARM_NEON)
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_ycc_rgb565 (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if (simd_support & JSIMD_ARM_NEON)
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return 1;
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return 0;
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}
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GLOBAL(void)
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jsimd_rgb_ycc_convert (j_compress_ptr cinfo,
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JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
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JDIMENSION output_row, int num_rows)
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{
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void (*neonfct)(JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int);
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switch(cinfo->in_color_space) {
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case JCS_EXT_RGB:
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neonfct=jsimd_extrgb_ycc_convert_neon;
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break;
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case JCS_EXT_RGBX:
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case JCS_EXT_RGBA:
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neonfct=jsimd_extrgbx_ycc_convert_neon;
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break;
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case JCS_EXT_BGR:
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neonfct=jsimd_extbgr_ycc_convert_neon;
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break;
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case JCS_EXT_BGRX:
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case JCS_EXT_BGRA:
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neonfct=jsimd_extbgrx_ycc_convert_neon;
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break;
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case JCS_EXT_XBGR:
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case JCS_EXT_ABGR:
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neonfct=jsimd_extxbgr_ycc_convert_neon;
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break;
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case JCS_EXT_XRGB:
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case JCS_EXT_ARGB:
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neonfct=jsimd_extxrgb_ycc_convert_neon;
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break;
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default:
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neonfct=jsimd_extrgb_ycc_convert_neon;
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break;
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}
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neonfct(cinfo->image_width, input_buf, output_buf, output_row, num_rows);
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}
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GLOBAL(void)
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jsimd_rgb_gray_convert (j_compress_ptr cinfo,
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JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
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JDIMENSION output_row, int num_rows)
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{
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}
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GLOBAL(void)
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jsimd_ycc_rgb_convert (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION input_row,
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JSAMPARRAY output_buf, int num_rows)
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{
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void (*neonfct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int);
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switch(cinfo->out_color_space) {
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case JCS_EXT_RGB:
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neonfct=jsimd_ycc_extrgb_convert_neon;
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break;
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case JCS_EXT_RGBX:
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case JCS_EXT_RGBA:
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neonfct=jsimd_ycc_extrgbx_convert_neon;
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break;
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case JCS_EXT_BGR:
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neonfct=jsimd_ycc_extbgr_convert_neon;
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break;
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case JCS_EXT_BGRX:
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case JCS_EXT_BGRA:
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neonfct=jsimd_ycc_extbgrx_convert_neon;
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break;
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case JCS_EXT_XBGR:
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case JCS_EXT_ABGR:
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neonfct=jsimd_ycc_extxbgr_convert_neon;
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break;
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case JCS_EXT_XRGB:
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case JCS_EXT_ARGB:
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neonfct=jsimd_ycc_extxrgb_convert_neon;
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break;
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default:
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neonfct=jsimd_ycc_extrgb_convert_neon;
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break;
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}
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neonfct(cinfo->output_width, input_buf, input_row, output_buf, num_rows);
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}
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GLOBAL(void)
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jsimd_ycc_rgb565_convert (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION input_row,
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JSAMPARRAY output_buf, int num_rows)
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{
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jsimd_ycc_rgb565_convert_neon(cinfo->output_width, input_buf, input_row,
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output_buf, num_rows);
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}
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GLOBAL(int)
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jsimd_can_h2v2_downsample (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_h2v1_downsample (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(void)
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jsimd_h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY output_data)
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{
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}
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GLOBAL(void)
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jsimd_h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY output_data)
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{
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}
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GLOBAL(int)
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jsimd_can_h2v2_upsample (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_h2v1_upsample (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(void)
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jsimd_h2v2_upsample (j_decompress_ptr cinfo,
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jpeg_component_info *compptr,
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JSAMPARRAY input_data,
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JSAMPARRAY *output_data_ptr)
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{
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}
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GLOBAL(void)
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jsimd_h2v1_upsample (j_decompress_ptr cinfo,
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jpeg_component_info *compptr,
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JSAMPARRAY input_data,
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JSAMPARRAY *output_data_ptr)
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{
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}
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GLOBAL(int)
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jsimd_can_h2v2_fancy_upsample (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_h2v1_fancy_upsample (void)
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{
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init_simd();
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|
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|
/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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|
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|
if (simd_support & JSIMD_ARM_NEON)
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return 1;
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return 0;
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}
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GLOBAL(void)
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jsimd_h2v2_fancy_upsample (j_decompress_ptr cinfo,
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jpeg_component_info *compptr,
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JSAMPARRAY input_data,
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JSAMPARRAY *output_data_ptr)
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{
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}
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GLOBAL(void)
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jsimd_h2v1_fancy_upsample (j_decompress_ptr cinfo,
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jpeg_component_info *compptr,
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JSAMPARRAY input_data,
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JSAMPARRAY *output_data_ptr)
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{
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jsimd_h2v1_fancy_upsample_neon(cinfo->max_v_samp_factor,
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compptr->downsampled_width, input_data,
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output_data_ptr);
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}
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GLOBAL(int)
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jsimd_can_h2v2_merged_upsample (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_h2v1_merged_upsample (void)
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{
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init_simd();
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return 0;
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}
|
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|
GLOBAL(void)
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jsimd_h2v2_merged_upsample (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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{
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}
|
|
|
|
GLOBAL(void)
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jsimd_h2v1_merged_upsample (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr,
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|
JSAMPARRAY output_buf)
|
|
{
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|
}
|
|
|
|
GLOBAL(int)
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jsimd_can_convsamp (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(DCTELEM) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_convsamp_float (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_convsamp (JSAMPARRAY sample_data, JDIMENSION start_col,
|
|
DCTELEM *workspace)
|
|
{
|
|
jsimd_convsamp_neon(sample_data, start_col, workspace);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_convsamp_float (JSAMPARRAY sample_data, JDIMENSION start_col,
|
|
FAST_FLOAT *workspace)
|
|
{
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_fdct_islow (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_fdct_ifast (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(DCTELEM) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_fdct_float (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_fdct_islow (DCTELEM *data)
|
|
{
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_fdct_ifast (DCTELEM *data)
|
|
{
|
|
jsimd_fdct_ifast_neon(data);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_fdct_float (FAST_FLOAT *data)
|
|
{
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_quantize (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (sizeof(DCTELEM) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_quantize_float (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_quantize (JCOEFPTR coef_block, DCTELEM *divisors,
|
|
DCTELEM *workspace)
|
|
{
|
|
jsimd_quantize_neon(coef_block, divisors, workspace);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_quantize_float (JCOEFPTR coef_block, FAST_FLOAT *divisors,
|
|
FAST_FLOAT *workspace)
|
|
{
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_2x2 (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(ISLOW_MULT_TYPE) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_4x4 (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(ISLOW_MULT_TYPE) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_2x2_neon(compptr->dct_table, coef_block, output_buf,
|
|
output_col);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_4x4_neon(compptr->dct_table, coef_block, output_buf,
|
|
output_col);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_islow (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(ISLOW_MULT_TYPE) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_ifast (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(IFAST_MULT_TYPE) != 2)
|
|
return 0;
|
|
if (IFAST_SCALE_BITS != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_float (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_islow (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_islow_neon(compptr->dct_table, coef_block, output_buf,
|
|
output_col);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_ifast_neon(compptr->dct_table, coef_block, output_buf,
|
|
output_col);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_float (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_huff_encode_one_block (void)
|
|
{
|
|
init_simd();
|
|
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON && simd_huffman)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(JOCTET*)
|
|
jsimd_huff_encode_one_block (void *state, JOCTET *buffer, JCOEFPTR block,
|
|
int last_dc_val, c_derived_tbl *dctbl,
|
|
c_derived_tbl *actbl)
|
|
{
|
|
return jsimd_huff_encode_one_block_neon(state, buffer, block, last_dc_val,
|
|
dctbl, actbl);
|
|
}
|