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Framework for supporting SIMD acceleration

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Designed to impose minimal changes on the "normal" code.
This commit is contained in:
Pierre Ossman
2009-03-09 13:15:56 +00:00
parent a4f55b50c9
commit c5cf41164a
13 changed files with 674 additions and 29 deletions
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5
Makefile.am
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@@ -1,7 +1,7 @@
noinst_LTLIBRARIES = libjpeg.la
HDRS = jchuff.h jdct.h jdhuff.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
jpegint.h jpeglib.h jversion.h
jpegint.h jpeglib.h jversion.h jsimd.h jsimddct.h
libjpeg_la_SOURCES = $(HDRS) jcapimin.c jcapistd.c jccoefct.c jccolor.c \
jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \
@@ -10,5 +10,6 @@ libjpeg_la_SOURCES = $(HDRS) jcapimin.c jcapistd.c jccoefct.c jccolor.c \
jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \
jdmerge.c jdphuff.c jdpostct.c jdsample.c jdtrans.c jerror.c \
jfdctflt.c jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c \
jidctred.c jquant1.c jquant2.c jutils.c jmemmgr.c jmemnobs.c
jidctred.c jquant1.c jquant2.c jutils.c jmemmgr.c jmemnobs.c \
jsimd.c

8
configure.ac
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@@ -72,6 +72,14 @@ AC_CHECK_FUNCS([memset memcpy], [],
[AC_DEFINE([NEED_BSD_STRINGS], 1,
[Define if you have BSD-like bzero and bcopy])])
# SIMD is optional
# todo: detect automatically when it can be enabled
AC_ARG_WITH([simd],
AC_HELP_STRING([--with-simd],[Include accelerated SIMD routines.]))
if test "x${with_simd}" != "xno"; then
AC_DEFINE([WITH_SIMD], [1], [Use accelerated SIMD routines.])
fi
# jconfig.h is the file we use, but we have another before that to
# fool autoheader. the reason is that we include this header in our
# API headers, which can screw things up for users of the lib.

10
jccolor.c
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@@ -2,6 +2,7 @@
* jccolor.c
*
* Copyright (C) 1991-1996, Thomas G. Lane.
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -11,6 +12,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsimd.h"
/* Private subobject */
@@ -420,8 +422,12 @@ jinit_color_converter (j_compress_ptr cinfo)
if (cinfo->num_components != 3)
ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
if (cinfo->in_color_space == JCS_RGB) {
cconvert->pub.start_pass = rgb_ycc_start;
cconvert->pub.color_convert = rgb_ycc_convert;
if (jsimd_can_rgb_ycc())
cconvert->pub.color_convert = jsimd_rgb_ycc_convert;
else {
cconvert->pub.start_pass = rgb_ycc_start;
cconvert->pub.color_convert = rgb_ycc_convert;
}
} else if (cinfo->in_color_space == JCS_YCbCr)
cconvert->pub.color_convert = null_convert;
else

37
jcdctmgr.c
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@@ -2,6 +2,7 @@
* jcdctmgr.c
*
* Copyright (C) 1994-1996, Thomas G. Lane.
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -15,6 +16,7 @@
#include "jinclude.h"
#include "jpeglib.h"
#include "jdct.h" /* Private declarations for DCT subsystem */
#include "jsimddct.h"
/* Private subobject for this module */
@@ -424,19 +426,28 @@ jinit_forward_dct (j_compress_ptr cinfo)
#ifdef DCT_ISLOW_SUPPORTED
case JDCT_ISLOW:
fdct->pub.forward_DCT = forward_DCT;
fdct->dct = jpeg_fdct_islow;
if (jsimd_can_fdct_islow())
fdct->dct = jsimd_fdct_islow;
else
fdct->dct = jpeg_fdct_islow;
break;
#endif
#ifdef DCT_IFAST_SUPPORTED
case JDCT_IFAST:
fdct->pub.forward_DCT = forward_DCT;
fdct->dct = jpeg_fdct_ifast;
if (jsimd_can_fdct_ifast())
fdct->dct = jsimd_fdct_ifast;
else
fdct->dct = jpeg_fdct_ifast;
break;
#endif
#ifdef DCT_FLOAT_SUPPORTED
case JDCT_FLOAT:
fdct->pub.forward_DCT = forward_DCT_float;
fdct->float_dct = jpeg_fdct_float;
if (jsimd_can_fdct_float())
fdct->float_dct = jsimd_fdct_float;
else
fdct->float_dct = jpeg_fdct_float;
break;
#endif
default:
@@ -453,14 +464,26 @@ jinit_forward_dct (j_compress_ptr cinfo)
case JDCT_IFAST:
#endif
#if defined(DCT_ISLOW_SUPPORTED) || defined(DCT_IFAST_SUPPORTED)
fdct->convsamp = convsamp;
fdct->quantize = quantize;
if (jsimd_can_convsamp())
fdct->convsamp = jsimd_convsamp;
else
fdct->convsamp = convsamp;
if (jsimd_can_quantize())
fdct->quantize = jsimd_quantize;
else
fdct->quantize = quantize;
break;
#endif
#ifdef DCT_FLOAT_SUPPORTED
case JDCT_FLOAT:
fdct->float_convsamp = convsamp_float;
fdct->float_quantize = quantize_float;
if (jsimd_can_convsamp_float())
fdct->float_convsamp = jsimd_convsamp_float;
else
fdct->float_convsamp = convsamp_float;
if (jsimd_can_quantize_float())
fdct->float_quantize = jsimd_quantize_float;
else
fdct->float_quantize = quantize_float;
break;
#endif
default:

3
jconfig.h.in
View File

@@ -28,6 +28,9 @@
/* Define if shift is unsigned */
#undef RIGHT_SHIFT_IS_UNSIGNED
/* Use accelerated SIMD routines. */
#undef WITH_SIMD
/* Define to 1 if type `char' is unsigned and you are not using gcc. */
#ifndef __CHAR_UNSIGNED__
# undef __CHAR_UNSIGNED__

12
jcsample.c
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@@ -2,6 +2,7 @@
* jcsample.c
*
* Copyright (C) 1991-1996, Thomas G. Lane.
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -48,6 +49,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsimd.h"
/* Pointer to routine to downsample a single component */
@@ -494,7 +496,10 @@ jinit_downsampler (j_compress_ptr cinfo)
} else if (compptr->h_samp_factor * 2 == cinfo->max_h_samp_factor &&
compptr->v_samp_factor == cinfo->max_v_samp_factor) {
smoothok = FALSE;
downsample->methods[ci] = h2v1_downsample;
if (jsimd_can_h2v1_downsample())
downsample->methods[ci] = jsimd_h2v1_downsample;
else
downsample->methods[ci] = h2v1_downsample;
} else if (compptr->h_samp_factor * 2 == cinfo->max_h_samp_factor &&
compptr->v_samp_factor * 2 == cinfo->max_v_samp_factor) {
#ifdef INPUT_SMOOTHING_SUPPORTED
@@ -503,7 +508,10 @@ jinit_downsampler (j_compress_ptr cinfo)
downsample->pub.need_context_rows = TRUE;
} else
#endif
downsample->methods[ci] = h2v2_downsample;
if (jsimd_can_h2v2_downsample())
downsample->methods[ci] = jsimd_h2v2_downsample;
else
downsample->methods[ci] = h2v2_downsample;
} else if ((cinfo->max_h_samp_factor % compptr->h_samp_factor) == 0 &&
(cinfo->max_v_samp_factor % compptr->v_samp_factor) == 0) {
smoothok = FALSE;

10
jdcolor.c
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@@ -2,6 +2,7 @@
* jdcolor.c
*
* Copyright (C) 1991-1997, Thomas G. Lane.
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -11,6 +12,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsimd.h"
/* Private subobject */
@@ -358,8 +360,12 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
case JCS_RGB:
cinfo->out_color_components = RGB_PIXELSIZE;
if (cinfo->jpeg_color_space == JCS_YCbCr) {
cconvert->pub.color_convert = ycc_rgb_convert;
build_ycc_rgb_table(cinfo);
if (jsimd_can_ycc_rgb())
cconvert->pub.color_convert = jsimd_ycc_rgb_convert;
else {
cconvert->pub.color_convert = ycc_rgb_convert;
build_ycc_rgb_table(cinfo);
}
} else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
cconvert->pub.color_convert = gray_rgb_convert;
} else if (cinfo->jpeg_color_space == JCS_RGB && RGB_PIXELSIZE == 3) {

27
jddctmgr.c
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@@ -2,6 +2,7 @@
* jddctmgr.c
*
* Copyright (C) 1994-1996, Thomas G. Lane.
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -19,6 +20,7 @@
#include "jinclude.h"
#include "jpeglib.h"
#include "jdct.h" /* Private declarations for DCT subsystem */
#include "jsimddct.h"
/*
@@ -105,11 +107,17 @@ start_pass (j_decompress_ptr cinfo)
method = JDCT_ISLOW; /* jidctred uses islow-style table */
break;
case 2:
method_ptr = jpeg_idct_2x2;
if (jsimd_can_idct_2x2())
method_ptr = jsimd_idct_2x2;
else
method_ptr = jpeg_idct_2x2;
method = JDCT_ISLOW; /* jidctred uses islow-style table */
break;
case 4:
method_ptr = jpeg_idct_4x4;
if (jsimd_can_idct_4x4())
method_ptr = jsimd_idct_4x4;
else
method_ptr = jpeg_idct_4x4;
method = JDCT_ISLOW; /* jidctred uses islow-style table */
break;
#endif
@@ -117,19 +125,28 @@ start_pass (j_decompress_ptr cinfo)
switch (cinfo->dct_method) {
#ifdef DCT_ISLOW_SUPPORTED
case JDCT_ISLOW:
method_ptr = jpeg_idct_islow;
if (jsimd_can_idct_islow())
method_ptr = jsimd_idct_islow;
else
method_ptr = jpeg_idct_islow;
method = JDCT_ISLOW;
break;
#endif
#ifdef DCT_IFAST_SUPPORTED
case JDCT_IFAST:
method_ptr = jpeg_idct_ifast;
if (jsimd_can_idct_ifast())
method_ptr = jsimd_idct_ifast;
else
method_ptr = jpeg_idct_ifast;
method = JDCT_IFAST;
break;
#endif
#ifdef DCT_FLOAT_SUPPORTED
case JDCT_FLOAT:
method_ptr = jpeg_idct_float;
if (jsimd_can_idct_float())
method_ptr = jsimd_idct_float;
else
method_ptr = jpeg_idct_float;
method = JDCT_FLOAT;
break;
#endif

12
jdmerge.c
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@@ -2,6 +2,7 @@
* jdmerge.c
*
* Copyright (C) 1994-1996, Thomas G. Lane.
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -35,6 +36,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsimd.h"
#ifdef UPSAMPLE_MERGING_SUPPORTED
@@ -382,14 +384,20 @@ jinit_merged_upsampler (j_decompress_ptr cinfo)
if (cinfo->max_v_samp_factor == 2) {
upsample->pub.upsample = merged_2v_upsample;
upsample->upmethod = h2v2_merged_upsample;
if (jsimd_can_h2v2_merged_upsample())
upsample->upmethod = jsimd_h2v2_merged_upsample;
else
upsample->upmethod = h2v2_merged_upsample;
/* Allocate a spare row buffer */
upsample->spare_row = (JSAMPROW)
(*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
(size_t) (upsample->out_row_width * SIZEOF(JSAMPLE)));
} else {
upsample->pub.upsample = merged_1v_upsample;
upsample->upmethod = h2v1_merged_upsample;
if (jsimd_can_h2v1_merged_upsample())
upsample->upmethod = jsimd_h2v1_merged_upsample;
else
upsample->upmethod = h2v1_merged_upsample;
/* No spare row needed */
upsample->spare_row = NULL;
}

30
jdsample.c
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@@ -2,6 +2,7 @@
* jdsample.c
*
* Copyright (C) 1991-1996, Thomas G. Lane.
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
@@ -21,6 +22,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jsimd.h"
/* Pointer to routine to upsample a single component */
@@ -447,18 +449,32 @@ jinit_upsampler (j_decompress_ptr cinfo)
} else if (h_in_group * 2 == h_out_group &&
v_in_group == v_out_group) {
/* Special cases for 2h1v upsampling */
if (do_fancy && compptr->downsampled_width > 2)
upsample->methods[ci] = h2v1_fancy_upsample;
else
upsample->methods[ci] = h2v1_upsample;
if (do_fancy && compptr->downsampled_width > 2) {
if (jsimd_can_h2v1_fancy_upsample())
upsample->methods[ci] = jsimd_h2v1_fancy_upsample;
else
upsample->methods[ci] = h2v1_fancy_upsample;
} else {
if (jsimd_can_h2v1_upsample())
upsample->methods[ci] = jsimd_h2v1_upsample;
else
upsample->methods[ci] = h2v1_upsample;
}
} else if (h_in_group * 2 == h_out_group &&
v_in_group * 2 == v_out_group) {
/* Special cases for 2h2v upsampling */
if (do_fancy && compptr->downsampled_width > 2) {
upsample->methods[ci] = h2v2_fancy_upsample;
if (jsimd_can_h2v2_fancy_upsample())
upsample->methods[ci] = jsimd_h2v2_fancy_upsample;
else
upsample->methods[ci] = h2v2_fancy_upsample;
upsample->pub.need_context_rows = TRUE;
} else
upsample->methods[ci] = h2v2_upsample;
} else {
if (jsimd_can_h2v2_upsample())
upsample->methods[ci] = jsimd_h2v2_upsample;
else
upsample->methods[ci] = h2v2_upsample;
}
} else if ((h_out_group % h_in_group) == 0 &&
(v_out_group % v_in_group) == 0) {
/* Generic integral-factors upsampling method */

359
jsimd.c Normal file
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@@ -0,0 +1,359 @@
/*
* jsimd.c
*
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
*
* Based on the x86 SIMD extension for IJG JPEG library,
* Copyright (C) 1999-2006, MIYASAKA Masaru.
*
* This file contains the interface between the "normal" portions
* of the library and the SIMD implementations.
*/
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jdct.h"
#define JSIMD_NONE 0x00
static unsigned int simd_support = ~0;
/*
* Check what SIMD accelerations are supported.
*
* FIXME: This code is racy under a multi-threaded environment.
*/
LOCAL(void)
init_simd (void)
{
if (simd_support != ~0)
return;
simd_support = JSIMD_NONE;
}
GLOBAL(int)
jsimd_can_rgb_ycc (void)
{
init_simd();
return 0;
}
GLOBAL(int)
jsimd_can_ycc_rgb (void)
{
init_simd();
return 0;
}
GLOBAL(void)
jsimd_rgb_ycc_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)
{
}
GLOBAL(int)
jsimd_can_h2v2_downsample (void)
{
init_simd();
return 0;
}
GLOBAL(int)
jsimd_can_h2v1_downsample (void)
{
init_simd();
return 0;
}
GLOBAL(void)
jsimd_h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
}
GLOBAL(void)
jsimd_h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY 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();
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)
{
}
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();
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)
{
}
GLOBAL(void)
jsimd_fdct_float (FAST_FLOAT * data)
{
}
GLOBAL(int)
jsimd_can_quantize (void)
{
init_simd();
return 0;
}
GLOBAL(int)
jsimd_can_quantize_float (void)
{
init_simd();
return 0;
}
GLOBAL(void)
jsimd_quantize (JCOEFPTR coef_block, DCTELEM * divisors,
DCTELEM * workspace)
{
}
GLOBAL(void)
jsimd_quantize_float (JCOEFPTR coef_block, FAST_FLOAT * divisors,
FAST_FLOAT * workspace)
{
}
GLOBAL(int)
jsimd_can_idct_2x2 (void)
{
init_simd();
return 0;
}
GLOBAL(int)
jsimd_can_idct_4x4 (void)
{
init_simd();
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();
return 0;
}
GLOBAL(int)
jsimd_can_idct_ifast (void)
{
init_simd();
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)
{
}
GLOBAL(void)
jsimd_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr,
JCOEFPTR coef_block, JSAMPARRAY output_buf,
JDIMENSION output_col)
{
}
GLOBAL(void)
jsimd_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
JCOEFPTR coef_block, JSAMPARRAY output_buf,
JDIMENSION output_col)
{
}

89
jsimd.h Normal file
View File

@@ -0,0 +1,89 @@
/*
* jsimd.h
*
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
*
* Based on the x86 SIMD extension for IJG JPEG library,
* Copyright (C) 1999-2006, MIYASAKA Masaru.
*
*/
/* Short forms of external names for systems with brain-damaged linkers. */
#ifdef NEED_SHORT_EXTERNAL_NAMES
#define jsimd_can_rgb_ycc jSCanRgbYcc
#define jsimd_can_ycc_rgb jSCanYccRgb
#define jsimd_rgb_ycc_convert jSRgbYccConv
#define jsimd_ycc_rgb_convert jSYccRgbConv
#define jsimd_can_h2v2_downsample jSCanH2V2Down
#define jsimd_can_h2v1_downsample jSCanH2V1Down
#define jsimd_h2v2_downsample jSH2V2Down
#define jsimd_h2v1_downsample jSH2V1Down
#define jsimd_can_h2v2_upsample jSCanH2V2Up
#define jsimd_can_h2v1_upsample jSCanH2V1Up
#define jsimd_h2v2_upsample jSH2V2Up
#define jsimd_h2v1_upsample jSH2V1Up
#define jsimd_can_h2v2_fancy_upsample jSCanH2V2FUp
#define jsimd_can_h2v1_fancy_upsample jSCanH2V1FUp
#define jsimd_h2v2_fancy_upsample jSH2V2FUp
#define jsimd_h2v1_fancy_upsample jSH2V1FUp
#define jsimd_can_h2v2_merged_upsample jSCanH2V2MUp
#define jsimd_can_h2v1_merged_upsample jSCanH2V1MUp
#define jsimd_h2v2_merged_upsample jSH2V2MUp
#define jsimd_h2v1_merged_upsample jSH2V1MUp
#endif /* NEED_SHORT_EXTERNAL_NAMES */
EXTERN(int) jsimd_can_rgb_ycc JPP((void));
EXTERN(int) jsimd_can_ycc_rgb JPP((void));
EXTERN(void) jsimd_rgb_ycc_convert
JPP((j_compress_ptr cinfo,
JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
JDIMENSION output_row, int num_rows));
EXTERN(void) jsimd_ycc_rgb_convert
JPP((j_decompress_ptr cinfo,
JSAMPIMAGE input_buf, JDIMENSION input_row,
JSAMPARRAY output_buf, int num_rows));
EXTERN(int) jsimd_can_h2v2_downsample JPP((void));
EXTERN(int) jsimd_can_h2v1_downsample JPP((void));
EXTERN(void) jsimd_h2v2_downsample
JPP((j_compress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY output_data));
EXTERN(void) jsimd_h2v1_downsample
JPP((j_compress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY output_data));
EXTERN(int) jsimd_can_h2v2_upsample JPP((void));
EXTERN(int) jsimd_can_h2v1_upsample JPP((void));
EXTERN(void) jsimd_h2v2_upsample
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
EXTERN(void) jsimd_h2v1_upsample
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
EXTERN(int) jsimd_can_h2v2_fancy_upsample JPP((void));
EXTERN(int) jsimd_can_h2v1_fancy_upsample JPP((void));
EXTERN(void) jsimd_h2v2_fancy_upsample
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
EXTERN(void) jsimd_h2v1_fancy_upsample
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
EXTERN(int) jsimd_can_h2v2_merged_upsample JPP((void));
EXTERN(int) jsimd_can_h2v1_merged_upsample JPP((void));
EXTERN(void) jsimd_h2v2_merged_upsample
JPP((j_decompress_ptr cinfo,
JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf));
EXTERN(void) jsimd_h2v1_merged_upsample
JPP((j_decompress_ptr cinfo,
JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
JSAMPARRAY output_buf));

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/*
* jsimddct.h
*
* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
*
* Based on the x86 SIMD extension for IJG JPEG library,
* Copyright (C) 1999-2006, MIYASAKA Masaru.
*
*/
/* Short forms of external names for systems with brain-damaged linkers. */
#ifdef NEED_SHORT_EXTERNAL_NAMES
#define jsimd_can_convsamp jSCanConv
#define jsimd_can_convsamp_float jSCanConvF
#define jsimd_convsamp jSConv
#define jsimd_convsamp_float jSConvF
#define jsimd_can_fdct_islow jSCanFDCTIS
#define jsimd_can_fdct_ifast jSCanFDCTIF
#define jsimd_can_fdct_float jSCanFDCTFl
#define jsimd_fdct_islow jSFDCTIS
#define jsimd_fdct_ifast jSFDCTIF
#define jsimd_fdct_float jSFDCTFl
#define jsimd_can_quantize jSCanQuant
#define jsimd_can_quantize_float jSCanQuantF
#define jsimd_quantize jSQuant
#define jsimd_quantize_float jSQuantF
#define jsimd_can_idct_2x2 jSCanIDCT22
#define jsimd_can_idct_4x4 jSCanIDCT44
#define jsimd_idct_2x2 jSIDCT22
#define jsimd_idct_4x4 jSIDCT44
#define jsimd_can_idct_islow jSCanIDCTIS
#define jsimd_can_idct_ifast jSCanIDCTIF
#define jsimd_can_idct_float jSCanIDCTFl
#define jsimd_idct_islow jSIDCTIS
#define jsimd_idct_ifast jSIDCTIF
#define jsimd_idct_float jSIDCTFl
#endif /* NEED_SHORT_EXTERNAL_NAMES */
EXTERN(int) jsimd_can_convsamp JPP((void));
EXTERN(int) jsimd_can_convsamp_float JPP((void));
EXTERN(void) jsimd_convsamp JPP((JSAMPARRAY sample_data,
JDIMENSION start_col,
DCTELEM * workspace));
EXTERN(void) jsimd_convsamp_float JPP((JSAMPARRAY sample_data,
JDIMENSION start_col,
FAST_FLOAT * workspace));
EXTERN(int) jsimd_can_fdct_islow JPP((void));
EXTERN(int) jsimd_can_fdct_ifast JPP((void));
EXTERN(int) jsimd_can_fdct_float JPP((void));
EXTERN(void) jsimd_fdct_islow JPP((DCTELEM * data));
EXTERN(void) jsimd_fdct_ifast JPP((DCTELEM * data));
EXTERN(void) jsimd_fdct_float JPP((FAST_FLOAT * data));
EXTERN(int) jsimd_can_quantize JPP((void));
EXTERN(int) jsimd_can_quantize_float JPP((void));
EXTERN(void) jsimd_quantize JPP((JCOEFPTR coef_block,
DCTELEM * divisors,
DCTELEM * workspace));
EXTERN(void) jsimd_quantize_float JPP((JCOEFPTR coef_block,
FAST_FLOAT * divisors,
FAST_FLOAT * workspace));
EXTERN(int) jsimd_can_idct_2x2 JPP((void));
EXTERN(int) jsimd_can_idct_4x4 JPP((void));
EXTERN(void) jsimd_idct_2x2 JPP((j_decompress_ptr cinfo,
jpeg_component_info * compptr,
JCOEFPTR coef_block,
JSAMPARRAY output_buf,
JDIMENSION output_col));
EXTERN(void) jsimd_idct_4x4 JPP((j_decompress_ptr cinfo,
jpeg_component_info * compptr,
JCOEFPTR coef_block,
JSAMPARRAY output_buf,
JDIMENSION output_col));
EXTERN(int) jsimd_can_idct_islow JPP((void));
EXTERN(int) jsimd_can_idct_ifast JPP((void));
EXTERN(int) jsimd_can_idct_float JPP((void));
EXTERN(void) jsimd_idct_islow JPP((j_decompress_ptr cinfo,
jpeg_component_info * compptr,
JCOEFPTR coef_block,
JSAMPARRAY output_buf,
JDIMENSION output_col));
EXTERN(void) jsimd_idct_ifast JPP((j_decompress_ptr cinfo,
jpeg_component_info * compptr,
JCOEFPTR coef_block,
JSAMPARRAY output_buf,
JDIMENSION output_col));
EXTERN(void) jsimd_idct_float JPP((j_decompress_ptr cinfo,
jpeg_component_info * compptr,
JCOEFPTR coef_block,
JSAMPARRAY output_buf,
JDIMENSION output_col));