mirror of
https://bitbucket.org/CPMADevs/cnq3
synced 2024-11-30 15:52:16 +00:00
fc9465caab
aside from the speed improvements, this also makes for nicer code in the renderer interaction with libjpeg, thanks to mem_dest support etc
802 lines
17 KiB
C
802 lines
17 KiB
C
/*
|
|
* jsimd_arm64.c
|
|
*
|
|
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
|
|
* Copyright (C) 2009-2011, 2013-2014, 2016, D. R. Commander.
|
|
* Copyright (C) 2015-2016, Matthieu Darbois.
|
|
*
|
|
* Based on the x86 SIMD extension for IJG JPEG library,
|
|
* Copyright (C) 1999-2006, MIYASAKA Masaru.
|
|
* For conditions of distribution and use, see copyright notice in jsimdext.inc
|
|
*
|
|
* This file contains the interface between the "normal" portions
|
|
* of the library and the SIMD implementations when running on a
|
|
* 64-bit ARM architecture.
|
|
*/
|
|
|
|
#define JPEG_INTERNALS
|
|
#include "../jinclude.h"
|
|
#include "../jpeglib.h"
|
|
#include "../jsimd.h"
|
|
#include "../jdct.h"
|
|
#include "../jsimddct.h"
|
|
#include "jsimd.h"
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
|
|
#define JSIMD_FASTLD3 1
|
|
#define JSIMD_FASTST3 2
|
|
#define JSIMD_FASTTBL 4
|
|
|
|
static unsigned int simd_support = ~0;
|
|
static unsigned int simd_huffman = 1;
|
|
static unsigned int simd_features = JSIMD_FASTLD3 | JSIMD_FASTST3 |
|
|
JSIMD_FASTTBL;
|
|
|
|
#if defined(__linux__) || defined(ANDROID) || defined(__ANDROID__)
|
|
|
|
#define SOMEWHAT_SANE_PROC_CPUINFO_SIZE_LIMIT (1024 * 1024)
|
|
|
|
LOCAL(int)
|
|
check_cpuinfo (char *buffer, const char *field, char *value)
|
|
{
|
|
char *p;
|
|
if (*value == 0)
|
|
return 0;
|
|
if (strncmp(buffer, field, strlen(field)) != 0)
|
|
return 0;
|
|
buffer += strlen(field);
|
|
while (isspace(*buffer))
|
|
buffer++;
|
|
|
|
/* Check if 'value' is present in the buffer as a separate word */
|
|
while ((p = strstr(buffer, value))) {
|
|
if (p > buffer && !isspace(*(p - 1))) {
|
|
buffer++;
|
|
continue;
|
|
}
|
|
p += strlen(value);
|
|
if (*p != 0 && !isspace(*p)) {
|
|
buffer++;
|
|
continue;
|
|
}
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
LOCAL(int)
|
|
parse_proc_cpuinfo (int bufsize)
|
|
{
|
|
char *buffer = (char *)malloc(bufsize);
|
|
FILE *fd;
|
|
|
|
if (!buffer)
|
|
return 0;
|
|
|
|
fd = fopen("/proc/cpuinfo", "r");
|
|
if (fd) {
|
|
while (fgets(buffer, bufsize, fd)) {
|
|
if (!strchr(buffer, '\n') && !feof(fd)) {
|
|
/* "impossible" happened - insufficient size of the buffer! */
|
|
fclose(fd);
|
|
free(buffer);
|
|
return 0;
|
|
}
|
|
if (check_cpuinfo(buffer, "CPU part", "0xd03") ||
|
|
check_cpuinfo(buffer, "CPU part", "0xd07"))
|
|
/* The Cortex-A53 has a slow tbl implementation. We can gain a few
|
|
percent speedup by disabling the use of that instruction. The
|
|
speedup on Cortex-A57 is more subtle but still measurable. */
|
|
simd_features &= ~JSIMD_FASTTBL;
|
|
else if (check_cpuinfo(buffer, "CPU part", "0x0a1"))
|
|
/* The SIMD version of Huffman encoding is slower than the C version on
|
|
Cavium ThunderX. Also, ld3 and st3 are abyssmally slow on that
|
|
CPU. */
|
|
simd_huffman = simd_features = 0;
|
|
}
|
|
fclose(fd);
|
|
}
|
|
free(buffer);
|
|
return 1;
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Check what SIMD accelerations are supported.
|
|
*
|
|
* FIXME: This code is racy under a multi-threaded environment.
|
|
*/
|
|
|
|
/*
|
|
* ARMv8 architectures support NEON extensions by default.
|
|
* It is no longer optional as it was with ARMv7.
|
|
*/
|
|
|
|
|
|
LOCAL(void)
|
|
init_simd (void)
|
|
{
|
|
char *env = NULL;
|
|
#if defined(__linux__) || defined(ANDROID) || defined(__ANDROID__)
|
|
int bufsize = 1024; /* an initial guess for the line buffer size limit */
|
|
#endif
|
|
|
|
if (simd_support != ~0U)
|
|
return;
|
|
|
|
simd_support = 0;
|
|
|
|
simd_support |= JSIMD_ARM_NEON;
|
|
#if defined(__linux__) || defined(ANDROID) || defined(__ANDROID__)
|
|
while (!parse_proc_cpuinfo(bufsize)) {
|
|
bufsize *= 2;
|
|
if (bufsize > SOMEWHAT_SANE_PROC_CPUINFO_SIZE_LIMIT)
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
/* Force different settings through environment variables */
|
|
env = getenv("JSIMD_FORCENEON");
|
|
if ((env != NULL) && (strcmp(env, "1") == 0))
|
|
simd_support = JSIMD_ARM_NEON;
|
|
env = getenv("JSIMD_FORCENONE");
|
|
if ((env != NULL) && (strcmp(env, "1") == 0))
|
|
simd_support = 0;
|
|
env = getenv("JSIMD_NOHUFFENC");
|
|
if ((env != NULL) && (strcmp(env, "1") == 0))
|
|
simd_huffman = 0;
|
|
env = getenv("JSIMD_FASTLD3");
|
|
if ((env != NULL) && (strcmp(env, "1") == 0))
|
|
simd_features |= JSIMD_FASTLD3;
|
|
if ((env != NULL) && (strcmp(env, "0") == 0))
|
|
simd_features &= ~JSIMD_FASTLD3;
|
|
env = getenv("JSIMD_FASTST3");
|
|
if ((env != NULL) && (strcmp(env, "1") == 0))
|
|
simd_features |= JSIMD_FASTST3;
|
|
if ((env != NULL) && (strcmp(env, "0") == 0))
|
|
simd_features &= ~JSIMD_FASTST3;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_rgb_ycc (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_rgb_gray (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_ycc_rgb (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_ycc_rgb565 (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_rgb_ycc_convert (j_compress_ptr cinfo,
|
|
JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
|
|
JDIMENSION output_row, int num_rows)
|
|
{
|
|
void (*neonfct)(JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int);
|
|
|
|
switch(cinfo->in_color_space) {
|
|
case JCS_EXT_RGB:
|
|
if (simd_features & JSIMD_FASTLD3)
|
|
neonfct=jsimd_extrgb_ycc_convert_neon;
|
|
else
|
|
neonfct=jsimd_extrgb_ycc_convert_neon_slowld3;
|
|
break;
|
|
case JCS_EXT_RGBX:
|
|
case JCS_EXT_RGBA:
|
|
neonfct=jsimd_extrgbx_ycc_convert_neon;
|
|
break;
|
|
case JCS_EXT_BGR:
|
|
if (simd_features & JSIMD_FASTLD3)
|
|
neonfct=jsimd_extbgr_ycc_convert_neon;
|
|
else
|
|
neonfct=jsimd_extbgr_ycc_convert_neon_slowld3;
|
|
break;
|
|
case JCS_EXT_BGRX:
|
|
case JCS_EXT_BGRA:
|
|
neonfct=jsimd_extbgrx_ycc_convert_neon;
|
|
break;
|
|
case JCS_EXT_XBGR:
|
|
case JCS_EXT_ABGR:
|
|
neonfct=jsimd_extxbgr_ycc_convert_neon;
|
|
break;
|
|
case JCS_EXT_XRGB:
|
|
case JCS_EXT_ARGB:
|
|
neonfct=jsimd_extxrgb_ycc_convert_neon;
|
|
break;
|
|
default:
|
|
if (simd_features & JSIMD_FASTLD3)
|
|
neonfct=jsimd_extrgb_ycc_convert_neon;
|
|
else
|
|
neonfct=jsimd_extrgb_ycc_convert_neon_slowld3;
|
|
break;
|
|
}
|
|
|
|
neonfct(cinfo->image_width, input_buf, output_buf, output_row, num_rows);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_rgb_gray_convert (j_compress_ptr cinfo,
|
|
JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
|
|
JDIMENSION output_row, int num_rows)
|
|
{
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_ycc_rgb_convert (j_decompress_ptr cinfo,
|
|
JSAMPIMAGE input_buf, JDIMENSION input_row,
|
|
JSAMPARRAY output_buf, int num_rows)
|
|
{
|
|
void (*neonfct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int);
|
|
|
|
switch(cinfo->out_color_space) {
|
|
case JCS_EXT_RGB:
|
|
if (simd_features & JSIMD_FASTST3)
|
|
neonfct=jsimd_ycc_extrgb_convert_neon;
|
|
else
|
|
neonfct=jsimd_ycc_extrgb_convert_neon_slowst3;
|
|
break;
|
|
case JCS_EXT_RGBX:
|
|
case JCS_EXT_RGBA:
|
|
neonfct=jsimd_ycc_extrgbx_convert_neon;
|
|
break;
|
|
case JCS_EXT_BGR:
|
|
if (simd_features & JSIMD_FASTST3)
|
|
neonfct=jsimd_ycc_extbgr_convert_neon;
|
|
else
|
|
neonfct=jsimd_ycc_extbgr_convert_neon_slowst3;
|
|
break;
|
|
case JCS_EXT_BGRX:
|
|
case JCS_EXT_BGRA:
|
|
neonfct=jsimd_ycc_extbgrx_convert_neon;
|
|
break;
|
|
case JCS_EXT_XBGR:
|
|
case JCS_EXT_ABGR:
|
|
neonfct=jsimd_ycc_extxbgr_convert_neon;
|
|
break;
|
|
case JCS_EXT_XRGB:
|
|
case JCS_EXT_ARGB:
|
|
neonfct=jsimd_ycc_extxrgb_convert_neon;
|
|
break;
|
|
default:
|
|
if (simd_features & JSIMD_FASTST3)
|
|
neonfct=jsimd_ycc_extrgb_convert_neon;
|
|
else
|
|
neonfct=jsimd_ycc_extrgb_convert_neon_slowst3;
|
|
break;
|
|
}
|
|
|
|
neonfct(cinfo->output_width, input_buf, input_row, output_buf, num_rows);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_ycc_rgb565_convert (j_decompress_ptr cinfo,
|
|
JSAMPIMAGE input_buf, JDIMENSION input_row,
|
|
JSAMPARRAY output_buf, int num_rows)
|
|
{
|
|
jsimd_ycc_rgb565_convert_neon(cinfo->output_width, input_buf, input_row,
|
|
output_buf, num_rows);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v2_downsample (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v1_downsample (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ARM_NEON)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data, JSAMPARRAY output_data)
|
|
{
|
|
jsimd_h2v2_downsample_neon(cinfo->image_width, cinfo->max_v_samp_factor,
|
|
compptr->v_samp_factor, compptr->width_in_blocks,
|
|
input_data, output_data);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data, JSAMPARRAY output_data)
|
|
{
|
|
jsimd_h2v1_downsample_neon(cinfo->image_width, cinfo->max_v_samp_factor,
|
|
compptr->v_samp_factor, compptr->width_in_blocks,
|
|
input_data, output_data);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v2_upsample (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v1_upsample (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v2_upsample (j_decompress_ptr cinfo,
|
|
jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data,
|
|
JSAMPARRAY *output_data_ptr)
|
|
{
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v1_upsample (j_decompress_ptr cinfo,
|
|
jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data,
|
|
JSAMPARRAY *output_data_ptr)
|
|
{
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v2_fancy_upsample (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v1_fancy_upsample (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v2_fancy_upsample (j_decompress_ptr cinfo,
|
|
jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data,
|
|
JSAMPARRAY *output_data_ptr)
|
|
{
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v1_fancy_upsample (j_decompress_ptr cinfo,
|
|
jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data,
|
|
JSAMPARRAY *output_data_ptr)
|
|
{
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v2_merged_upsample (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v1_merged_upsample (void)
|
|
{
|
|
init_simd();
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v2_merged_upsample (j_decompress_ptr cinfo,
|
|
JSAMPIMAGE input_buf,
|
|
JDIMENSION in_row_group_ctr,
|
|
JSAMPARRAY output_buf)
|
|
{
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v1_merged_upsample (j_decompress_ptr cinfo,
|
|
JSAMPIMAGE input_buf,
|
|
JDIMENSION in_row_group_ctr,
|
|
JSAMPARRAY output_buf)
|
|
{
|
|
}
|
|
|
|
GLOBAL(int)
|
|
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();
|
|
|
|
/* 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_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)
|
|
{
|
|
jsimd_fdct_islow_neon(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)
|
|
{
|
|
if (simd_features & JSIMD_FASTTBL)
|
|
return jsimd_huff_encode_one_block_neon(state, buffer, block, last_dc_val,
|
|
dctbl, actbl);
|
|
else
|
|
return jsimd_huff_encode_one_block_neon_slowtbl(state, buffer, block,
|
|
last_dc_val, dctbl, actbl);
|
|
}
|