873 lines
19 KiB
C
873 lines
19 KiB
C
/*
|
|
* jsimd_powerpc.c
|
|
*
|
|
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
|
|
* Copyright (C) 2009-2011, 2014-2016, 2018, D. R. Commander.
|
|
* Copyright (C) 2015-2016, 2018, 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
|
|
* PowerPC architecture.
|
|
*/
|
|
|
|
#ifdef __amigaos4__
|
|
/* This must be defined first as it re-defines GLOBAL otherwise */
|
|
#include <proto/exec.h>
|
|
#endif
|
|
|
|
#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>
|
|
|
|
#if defined(__OpenBSD__)
|
|
#include <sys/param.h>
|
|
#include <sys/sysctl.h>
|
|
#include <machine/cpu.h>
|
|
#endif
|
|
|
|
static unsigned int simd_support = ~0;
|
|
|
|
#if !defined(__ALTIVEC__) && (defined(__linux__) || defined(ANDROID) || defined(__ANDROID__))
|
|
|
|
#define SOMEWHAT_SANE_PROC_CPUINFO_SIZE_LIMIT (1024 * 1024)
|
|
|
|
LOCAL(int)
|
|
check_feature(char *buffer, char *feature)
|
|
{
|
|
char *p;
|
|
|
|
if (*feature == 0)
|
|
return 0;
|
|
if (strncmp(buffer, "cpu", 3) != 0)
|
|
return 0;
|
|
buffer += 3;
|
|
while (isspace(*buffer))
|
|
buffer++;
|
|
|
|
/* Check if 'feature' is present in the buffer as a separate word */
|
|
while ((p = strstr(buffer, feature))) {
|
|
if (p > buffer && !isspace(*(p - 1))) {
|
|
buffer++;
|
|
continue;
|
|
}
|
|
p += strlen(feature);
|
|
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;
|
|
|
|
simd_support = 0;
|
|
|
|
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_feature(buffer, "altivec"))
|
|
simd_support |= JSIMD_ALTIVEC;
|
|
}
|
|
fclose(fd);
|
|
}
|
|
free(buffer);
|
|
return 1;
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Check what SIMD accelerations are supported.
|
|
*
|
|
* FIXME: This code is racy under a multi-threaded environment.
|
|
*/
|
|
LOCAL(void)
|
|
init_simd(void)
|
|
{
|
|
#ifndef NO_GETENV
|
|
char *env = NULL;
|
|
#endif
|
|
#if !defined(__ALTIVEC__) && (defined(__linux__) || defined(ANDROID) || defined(__ANDROID__))
|
|
int bufsize = 1024; /* an initial guess for the line buffer size limit */
|
|
#elif defined(__amigaos4__)
|
|
uint32 altivec = 0;
|
|
#elif defined(__OpenBSD__)
|
|
int mib[2] = { CTL_MACHDEP, CPU_ALTIVEC };
|
|
int altivec;
|
|
size_t len = sizeof(altivec);
|
|
#endif
|
|
|
|
if (simd_support != ~0U)
|
|
return;
|
|
|
|
simd_support = 0;
|
|
|
|
#if defined(__ALTIVEC__) || defined(__APPLE__)
|
|
simd_support |= JSIMD_ALTIVEC;
|
|
#elif defined(__linux__) || defined(ANDROID) || defined(__ANDROID__)
|
|
while (!parse_proc_cpuinfo(bufsize)) {
|
|
bufsize *= 2;
|
|
if (bufsize > SOMEWHAT_SANE_PROC_CPUINFO_SIZE_LIMIT)
|
|
break;
|
|
}
|
|
#elif defined(__amigaos4__)
|
|
IExec->GetCPUInfoTags(GCIT_VectorUnit, &altivec, TAG_DONE);
|
|
if (altivec == VECTORTYPE_ALTIVEC)
|
|
simd_support |= JSIMD_ALTIVEC;
|
|
#elif defined(__OpenBSD__)
|
|
if (sysctl(mib, 2, &altivec, &len, NULL, 0) == 0 && altivec != 0)
|
|
simd_support |= JSIMD_ALTIVEC;
|
|
#endif
|
|
|
|
#ifndef NO_GETENV
|
|
/* Force different settings through environment variables */
|
|
env = getenv("JSIMD_FORCEALTIVEC");
|
|
if ((env != NULL) && (strcmp(env, "1") == 0))
|
|
simd_support = JSIMD_ALTIVEC;
|
|
env = getenv("JSIMD_FORCENONE");
|
|
if ((env != NULL) && (strcmp(env, "1") == 0))
|
|
simd_support = 0;
|
|
#endif
|
|
}
|
|
|
|
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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_rgb_gray(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_ALTIVEC)
|
|
return 1;
|
|
|
|
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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_ycc_rgb565(void)
|
|
{
|
|
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 (*altivecfct) (JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int);
|
|
|
|
switch (cinfo->in_color_space) {
|
|
case JCS_EXT_RGB:
|
|
altivecfct = jsimd_extrgb_ycc_convert_altivec;
|
|
break;
|
|
case JCS_EXT_RGBX:
|
|
case JCS_EXT_RGBA:
|
|
altivecfct = jsimd_extrgbx_ycc_convert_altivec;
|
|
break;
|
|
case JCS_EXT_BGR:
|
|
altivecfct = jsimd_extbgr_ycc_convert_altivec;
|
|
break;
|
|
case JCS_EXT_BGRX:
|
|
case JCS_EXT_BGRA:
|
|
altivecfct = jsimd_extbgrx_ycc_convert_altivec;
|
|
break;
|
|
case JCS_EXT_XBGR:
|
|
case JCS_EXT_ABGR:
|
|
altivecfct = jsimd_extxbgr_ycc_convert_altivec;
|
|
break;
|
|
case JCS_EXT_XRGB:
|
|
case JCS_EXT_ARGB:
|
|
altivecfct = jsimd_extxrgb_ycc_convert_altivec;
|
|
break;
|
|
default:
|
|
altivecfct = jsimd_rgb_ycc_convert_altivec;
|
|
break;
|
|
}
|
|
|
|
altivecfct(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)
|
|
{
|
|
void (*altivecfct) (JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int);
|
|
|
|
switch (cinfo->in_color_space) {
|
|
case JCS_EXT_RGB:
|
|
altivecfct = jsimd_extrgb_gray_convert_altivec;
|
|
break;
|
|
case JCS_EXT_RGBX:
|
|
case JCS_EXT_RGBA:
|
|
altivecfct = jsimd_extrgbx_gray_convert_altivec;
|
|
break;
|
|
case JCS_EXT_BGR:
|
|
altivecfct = jsimd_extbgr_gray_convert_altivec;
|
|
break;
|
|
case JCS_EXT_BGRX:
|
|
case JCS_EXT_BGRA:
|
|
altivecfct = jsimd_extbgrx_gray_convert_altivec;
|
|
break;
|
|
case JCS_EXT_XBGR:
|
|
case JCS_EXT_ABGR:
|
|
altivecfct = jsimd_extxbgr_gray_convert_altivec;
|
|
break;
|
|
case JCS_EXT_XRGB:
|
|
case JCS_EXT_ARGB:
|
|
altivecfct = jsimd_extxrgb_gray_convert_altivec;
|
|
break;
|
|
default:
|
|
altivecfct = jsimd_rgb_gray_convert_altivec;
|
|
break;
|
|
}
|
|
|
|
altivecfct(cinfo->image_width, input_buf, output_buf, output_row, 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 (*altivecfct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int);
|
|
|
|
switch (cinfo->out_color_space) {
|
|
case JCS_EXT_RGB:
|
|
altivecfct = jsimd_ycc_extrgb_convert_altivec;
|
|
break;
|
|
case JCS_EXT_RGBX:
|
|
case JCS_EXT_RGBA:
|
|
altivecfct = jsimd_ycc_extrgbx_convert_altivec;
|
|
break;
|
|
case JCS_EXT_BGR:
|
|
altivecfct = jsimd_ycc_extbgr_convert_altivec;
|
|
break;
|
|
case JCS_EXT_BGRX:
|
|
case JCS_EXT_BGRA:
|
|
altivecfct = jsimd_ycc_extbgrx_convert_altivec;
|
|
break;
|
|
case JCS_EXT_XBGR:
|
|
case JCS_EXT_ABGR:
|
|
altivecfct = jsimd_ycc_extxbgr_convert_altivec;
|
|
break;
|
|
case JCS_EXT_XRGB:
|
|
case JCS_EXT_ARGB:
|
|
altivecfct = jsimd_ycc_extxrgb_convert_altivec;
|
|
break;
|
|
default:
|
|
altivecfct = jsimd_ycc_rgb_convert_altivec;
|
|
break;
|
|
}
|
|
|
|
altivecfct(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)
|
|
{
|
|
}
|
|
|
|
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 (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ALTIVEC)
|
|
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 (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_ALTIVEC)
|
|
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_altivec(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_altivec(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();
|
|
|
|
/* 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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v1_upsample(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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v2_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
|
|
{
|
|
jsimd_h2v2_upsample_altivec(cinfo->max_v_samp_factor, cinfo->output_width,
|
|
input_data, output_data_ptr);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v1_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
|
|
{
|
|
jsimd_h2v1_upsample_altivec(cinfo->max_v_samp_factor, cinfo->output_width,
|
|
input_data, output_data_ptr);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v2_fancy_upsample(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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v1_fancy_upsample(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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v2_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
|
|
{
|
|
jsimd_h2v2_fancy_upsample_altivec(cinfo->max_v_samp_factor,
|
|
compptr->downsampled_width, input_data,
|
|
output_data_ptr);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v1_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
|
|
{
|
|
jsimd_h2v1_fancy_upsample_altivec(cinfo->max_v_samp_factor,
|
|
compptr->downsampled_width, input_data,
|
|
output_data_ptr);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v2_merged_upsample(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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_h2v1_merged_upsample(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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v2_merged_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
|
|
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)
|
|
{
|
|
void (*altivecfct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY);
|
|
|
|
switch (cinfo->out_color_space) {
|
|
case JCS_EXT_RGB:
|
|
altivecfct = jsimd_h2v2_extrgb_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_RGBX:
|
|
case JCS_EXT_RGBA:
|
|
altivecfct = jsimd_h2v2_extrgbx_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_BGR:
|
|
altivecfct = jsimd_h2v2_extbgr_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_BGRX:
|
|
case JCS_EXT_BGRA:
|
|
altivecfct = jsimd_h2v2_extbgrx_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_XBGR:
|
|
case JCS_EXT_ABGR:
|
|
altivecfct = jsimd_h2v2_extxbgr_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_XRGB:
|
|
case JCS_EXT_ARGB:
|
|
altivecfct = jsimd_h2v2_extxrgb_merged_upsample_altivec;
|
|
break;
|
|
default:
|
|
altivecfct = jsimd_h2v2_merged_upsample_altivec;
|
|
break;
|
|
}
|
|
|
|
altivecfct(cinfo->output_width, input_buf, in_row_group_ctr, output_buf);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_h2v1_merged_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
|
|
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)
|
|
{
|
|
void (*altivecfct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY);
|
|
|
|
switch (cinfo->out_color_space) {
|
|
case JCS_EXT_RGB:
|
|
altivecfct = jsimd_h2v1_extrgb_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_RGBX:
|
|
case JCS_EXT_RGBA:
|
|
altivecfct = jsimd_h2v1_extrgbx_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_BGR:
|
|
altivecfct = jsimd_h2v1_extbgr_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_BGRX:
|
|
case JCS_EXT_BGRA:
|
|
altivecfct = jsimd_h2v1_extbgrx_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_XBGR:
|
|
case JCS_EXT_ABGR:
|
|
altivecfct = jsimd_h2v1_extxbgr_merged_upsample_altivec;
|
|
break;
|
|
case JCS_EXT_XRGB:
|
|
case JCS_EXT_ARGB:
|
|
altivecfct = jsimd_h2v1_extxrgb_merged_upsample_altivec;
|
|
break;
|
|
default:
|
|
altivecfct = jsimd_h2v1_merged_upsample_altivec;
|
|
break;
|
|
}
|
|
|
|
altivecfct(cinfo->output_width, input_buf, in_row_group_ctr, 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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_convsamp_float(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_convsamp(JSAMPARRAY sample_data, JDIMENSION start_col,
|
|
DCTELEM *workspace)
|
|
{
|
|
jsimd_convsamp_altivec(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_ALTIVEC)
|
|
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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_fdct_float(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_fdct_islow(DCTELEM *data)
|
|
{
|
|
jsimd_fdct_islow_altivec(data);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_fdct_ifast(DCTELEM *data)
|
|
{
|
|
jsimd_fdct_ifast_altivec(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_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_quantize_float(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_quantize(JCOEFPTR coef_block, DCTELEM *divisors, DCTELEM *workspace)
|
|
{
|
|
jsimd_quantize_altivec(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)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_4x4(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_2x2(j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_4x4(j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION 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 (simd_support & JSIMD_ALTIVEC)
|
|
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 (simd_support & JSIMD_ALTIVEC)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_float(void)
|
|
{
|
|
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_altivec(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_altivec(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)
|
|
{
|
|
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 NULL;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_encode_mcu_AC_first_prepare(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_encode_mcu_AC_first_prepare(const JCOEF *block,
|
|
const int *jpeg_natural_order_start, int Sl,
|
|
int Al, JCOEF *values, size_t *zerobits)
|
|
{
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_encode_mcu_AC_refine_prepare(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_encode_mcu_AC_refine_prepare(const JCOEF *block,
|
|
const int *jpeg_natural_order_start, int Sl,
|
|
int Al, JCOEF *absvalues, size_t *bits)
|
|
{
|
|
return 0;
|
|
}
|