/*
 * simd/jsimd.h
 *
 * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
 * Copyright (C) 2011, 2014-2016 D. R. Commander
 * Copyright (C) 2013-2014, MIPS Technologies, Inc., California
 * Copyright (C) 2014 Linaro Limited
 * 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
 *
 */

/* Bitmask for supported acceleration methods */

#define JSIMD_NONE       0x00
#define JSIMD_MMX        0x01
#define JSIMD_3DNOW      0x02
#define JSIMD_SSE        0x04
#define JSIMD_SSE2       0x08
#define JSIMD_ARM_NEON   0x10
#define JSIMD_MIPS_DSPR2 0x20
#define JSIMD_ALTIVEC    0x40

/* SIMD Ext: retrieve SIMD/CPU information */
EXTERN(unsigned int) jpeg_simd_cpu_support (void);

/* RGB & extended RGB --> YCC Colorspace Conversion */
EXTERN(void) jsimd_rgb_ycc_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_ycc_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_ycc_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_ycc_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_ycc_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_ycc_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_ycc_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

extern const int jconst_rgb_ycc_convert_sse2[];
EXTERN(void) jsimd_rgb_ycc_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_ycc_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_ycc_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_ycc_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_ycc_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_ycc_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_ycc_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

EXTERN(void) jsimd_rgb_ycc_convert_neon
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_ycc_convert_neon
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_ycc_convert_neon
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_ycc_convert_neon
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_ycc_convert_neon
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_ycc_convert_neon
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_ycc_convert_neon
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

EXTERN(void) jsimd_rgb_ycc_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_ycc_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_ycc_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_ycc_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_ycc_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_ycc_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_ycc_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

EXTERN(void) jsimd_rgb_ycc_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_ycc_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_ycc_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_ycc_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_ycc_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_ycc_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_ycc_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

/* RGB & extended RGB --> Grayscale Colorspace Conversion */
EXTERN(void) jsimd_rgb_gray_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_gray_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_gray_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_gray_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_gray_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_gray_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_gray_convert_mmx
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

extern const int jconst_rgb_gray_convert_sse2[];
EXTERN(void) jsimd_rgb_gray_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_gray_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_gray_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_gray_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_gray_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_gray_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_gray_convert_sse2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

EXTERN(void) jsimd_rgb_gray_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_gray_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_gray_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_gray_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_gray_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_gray_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_gray_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

EXTERN(void) jsimd_rgb_gray_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgb_gray_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extrgbx_gray_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgr_gray_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extbgrx_gray_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxbgr_gray_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);
EXTERN(void) jsimd_extxrgb_gray_convert_altivec
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows);

/* YCC --> RGB & extended RGB Colorspace Conversion */
EXTERN(void) jsimd_ycc_rgb_convert_mmx
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgb_convert_mmx
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgbx_convert_mmx
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgr_convert_mmx
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgrx_convert_mmx
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxbgr_convert_mmx
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxrgb_convert_mmx
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);

extern const int jconst_ycc_rgb_convert_sse2[];
EXTERN(void) jsimd_ycc_rgb_convert_sse2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgb_convert_sse2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgbx_convert_sse2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgr_convert_sse2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgrx_convert_sse2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxbgr_convert_sse2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxrgb_convert_sse2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);

EXTERN(void) jsimd_ycc_rgb_convert_neon
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgb_convert_neon
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgbx_convert_neon
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgr_convert_neon
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgrx_convert_neon
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxbgr_convert_neon
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxrgb_convert_neon
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_rgb565_convert_neon
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);

EXTERN(void) jsimd_ycc_rgb_convert_mips_dspr2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgb_convert_mips_dspr2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgbx_convert_mips_dspr2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgr_convert_mips_dspr2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgrx_convert_mips_dspr2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxbgr_convert_mips_dspr2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxrgb_convert_mips_dspr2
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);

EXTERN(void) jsimd_ycc_rgb_convert_altivec
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgb_convert_altivec
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extrgbx_convert_altivec
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgr_convert_altivec
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extbgrx_convert_altivec
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxbgr_convert_altivec
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);
EXTERN(void) jsimd_ycc_extxrgb_convert_altivec
        (JDIMENSION out_width, JSAMPIMAGE input_buf, JDIMENSION input_row,
         JSAMPARRAY output_buf, int num_rows);

/* NULL Colorspace Conversion */
EXTERN(void) jsimd_c_null_convert_mips_dspr2
        (JDIMENSION img_width, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
         JDIMENSION output_row, int num_rows, int num_components);

/* h2v1 Downsampling */
EXTERN(void) jsimd_h2v1_downsample_mmx
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

EXTERN(void) jsimd_h2v1_downsample_sse2
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

EXTERN(void) jsimd_h2v1_downsample_neon
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

EXTERN(void) jsimd_h2v1_downsample_mips_dspr2
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

EXTERN(void) jsimd_h2v1_downsample_altivec
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

/* h2v2 Downsampling */
EXTERN(void) jsimd_h2v2_downsample_mmx
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

EXTERN(void) jsimd_h2v2_downsample_sse2
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

EXTERN(void) jsimd_h2v2_downsample_neon
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

EXTERN(void) jsimd_h2v2_downsample_mips_dspr2
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

EXTERN(void) jsimd_h2v2_downsample_altivec
        (JDIMENSION image_width, int max_v_samp_factor,
         JDIMENSION v_samp_factor, JDIMENSION width_blocks,
         JSAMPARRAY input_data, JSAMPARRAY output_data);

/* h2v2 Smooth Downsampling */
EXTERN(void) jsimd_h2v2_smooth_downsample_mips_dspr2
        (JSAMPARRAY input_data, JSAMPARRAY output_data,
         JDIMENSION v_samp_factor, int max_v_samp_factor,
         int smoothing_factor, JDIMENSION width_blocks,
         JDIMENSION image_width);


/* Upsampling */
EXTERN(void) jsimd_h2v1_upsample_mmx
        (int max_v_samp_factor, JDIMENSION output_width, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr);
EXTERN(void) jsimd_h2v2_upsample_mmx
        (int max_v_samp_factor, JDIMENSION output_width, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr);

EXTERN(void) jsimd_h2v1_upsample_sse2
        (int max_v_samp_factor, JDIMENSION output_width, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr);
EXTERN(void) jsimd_h2v2_upsample_sse2
        (int max_v_samp_factor, JDIMENSION output_width, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr);

EXTERN(void) jsimd_h2v1_upsample_mips_dspr2
        (int max_v_samp_factor, JDIMENSION output_width, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr);
EXTERN(void) jsimd_h2v2_upsample_mips_dspr2
        (int max_v_samp_factor, JDIMENSION output_width, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr);

EXTERN(void) jsimd_int_upsample_mips_dspr2
        (UINT8 h_expand, UINT8 v_expand, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr, JDIMENSION output_width,
         int max_v_samp_factor);

EXTERN(void) jsimd_h2v1_upsample_altivec
        (int max_v_samp_factor, JDIMENSION output_width, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr);
EXTERN(void) jsimd_h2v2_upsample_altivec
        (int max_v_samp_factor, JDIMENSION output_width, JSAMPARRAY input_data,
         JSAMPARRAY * output_data_ptr);

/* Fancy Upsampling */
EXTERN(void) jsimd_h2v1_fancy_upsample_mmx
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);
EXTERN(void) jsimd_h2v2_fancy_upsample_mmx
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);

extern const int jconst_fancy_upsample_sse2[];
EXTERN(void) jsimd_h2v1_fancy_upsample_sse2
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);
EXTERN(void) jsimd_h2v2_fancy_upsample_sse2
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);

EXTERN(void) jsimd_h2v1_fancy_upsample_neon
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);

EXTERN(void) jsimd_h2v1_fancy_upsample_mips_dspr2
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);
EXTERN(void) jsimd_h2v2_fancy_upsample_mips_dspr2
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);

EXTERN(void) jsimd_h2v1_fancy_upsample_altivec
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);
EXTERN(void) jsimd_h2v2_fancy_upsample_altivec
        (int max_v_samp_factor, JDIMENSION downsampled_width,
         JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr);

/* Merged Upsampling */
EXTERN(void) jsimd_h2v1_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extrgb_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extrgbx_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extbgr_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extbgrx_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extxbgr_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extxrgb_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);

EXTERN(void) jsimd_h2v2_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extrgb_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extrgbx_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extbgr_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extbgrx_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extxbgr_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extxrgb_merged_upsample_mmx
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);

extern const int jconst_merged_upsample_sse2[];
EXTERN(void) jsimd_h2v1_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extrgb_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extrgbx_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extbgr_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extbgrx_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extxbgr_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extxrgb_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);

EXTERN(void) jsimd_h2v2_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extrgb_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extrgbx_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extbgr_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extbgrx_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extxbgr_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extxrgb_merged_upsample_sse2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);

EXTERN(void) jsimd_h2v1_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v1_extrgb_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v1_extrgbx_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v1_extbgr_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v1_extbgrx_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v1_extxbgr_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v1_extxrgb_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);

EXTERN(void) jsimd_h2v2_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v2_extrgb_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v2_extrgbx_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v2_extbgr_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v2_extbgrx_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v2_extxbgr_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);
EXTERN(void) jsimd_h2v2_extxrgb_merged_upsample_mips_dspr2
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf, JSAMPLE* range);

EXTERN(void) jsimd_h2v1_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extrgb_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extrgbx_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extbgr_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extbgrx_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extxbgr_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v1_extxrgb_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);

EXTERN(void) jsimd_h2v2_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extrgb_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extrgbx_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extbgr_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extbgrx_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extxbgr_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
EXTERN(void) jsimd_h2v2_extxrgb_merged_upsample_altivec
        (JDIMENSION output_width, JSAMPIMAGE input_buf,
         JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);

/* Sample Conversion */
EXTERN(void) jsimd_convsamp_mmx
        (JSAMPARRAY sample_data, JDIMENSION start_col, DCTELEM * workspace);

EXTERN(void) jsimd_convsamp_sse2
        (JSAMPARRAY sample_data, JDIMENSION start_col, DCTELEM * workspace);

EXTERN(void) jsimd_convsamp_neon
        (JSAMPARRAY sample_data, JDIMENSION start_col, DCTELEM * workspace);

EXTERN(void) jsimd_convsamp_mips_dspr2
        (JSAMPARRAY sample_data, JDIMENSION start_col, DCTELEM * workspace);

EXTERN(void) jsimd_convsamp_altivec
        (JSAMPARRAY sample_data, JDIMENSION start_col, DCTELEM * workspace);

/* Floating Point Sample Conversion */
EXTERN(void) jsimd_convsamp_float_3dnow
        (JSAMPARRAY sample_data, JDIMENSION start_col, FAST_FLOAT * workspace);

EXTERN(void) jsimd_convsamp_float_sse
        (JSAMPARRAY sample_data, JDIMENSION start_col, FAST_FLOAT * workspace);

EXTERN(void) jsimd_convsamp_float_sse2
        (JSAMPARRAY sample_data, JDIMENSION start_col, FAST_FLOAT * workspace);

EXTERN(void) jsimd_convsamp_float_mips_dspr2
        (JSAMPARRAY sample_data, JDIMENSION start_col, FAST_FLOAT * workspace);

/* Slow Integer Forward DCT */
EXTERN(void) jsimd_fdct_islow_mmx (DCTELEM * data);

extern const int jconst_fdct_islow_sse2[];
EXTERN(void) jsimd_fdct_islow_sse2 (DCTELEM * data);

EXTERN(void) jsimd_fdct_islow_neon (DCTELEM * data);

EXTERN(void) jsimd_fdct_islow_mips_dspr2 (DCTELEM * data);

EXTERN(void) jsimd_fdct_islow_altivec (DCTELEM * data);

/* Fast Integer Forward DCT */
EXTERN(void) jsimd_fdct_ifast_mmx (DCTELEM * data);

extern const int jconst_fdct_ifast_sse2[];
EXTERN(void) jsimd_fdct_ifast_sse2 (DCTELEM * data);

EXTERN(void) jsimd_fdct_ifast_neon (DCTELEM * data);

EXTERN(void) jsimd_fdct_ifast_mips_dspr2 (DCTELEM * data);

EXTERN(void) jsimd_fdct_ifast_altivec (DCTELEM * data);

/* Floating Point Forward DCT */
EXTERN(void) jsimd_fdct_float_3dnow (FAST_FLOAT * data);

extern const int jconst_fdct_float_sse[];
EXTERN(void) jsimd_fdct_float_sse (FAST_FLOAT * data);

/* Quantization */
EXTERN(void) jsimd_quantize_mmx
        (JCOEFPTR coef_block, DCTELEM * divisors, DCTELEM * workspace);

EXTERN(void) jsimd_quantize_sse2
        (JCOEFPTR coef_block, DCTELEM * divisors, DCTELEM * workspace);

EXTERN(void) jsimd_quantize_neon
        (JCOEFPTR coef_block, DCTELEM * divisors, DCTELEM * workspace);

EXTERN(void) jsimd_quantize_mips_dspr2
        (JCOEFPTR coef_block, DCTELEM * divisors, DCTELEM * workspace);

EXTERN(void) jsimd_quantize_altivec
        (JCOEFPTR coef_block, DCTELEM * divisors, DCTELEM * workspace);

/* Floating Point Quantization */
EXTERN(void) jsimd_quantize_float_3dnow
        (JCOEFPTR coef_block, FAST_FLOAT * divisors, FAST_FLOAT * workspace);

EXTERN(void) jsimd_quantize_float_sse
        (JCOEFPTR coef_block, FAST_FLOAT * divisors, FAST_FLOAT * workspace);

EXTERN(void) jsimd_quantize_float_sse2
        (JCOEFPTR coef_block, FAST_FLOAT * divisors, FAST_FLOAT * workspace);

EXTERN(void) jsimd_quantize_float_mips_dspr2
        (JCOEFPTR coef_block, FAST_FLOAT * divisors, FAST_FLOAT * workspace);

/* Scaled Inverse DCT */
EXTERN(void) jsimd_idct_2x2_mmx
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);
EXTERN(void) jsimd_idct_4x4_mmx
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

extern const int jconst_idct_red_sse2[];
EXTERN(void) jsimd_idct_2x2_sse2
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);
EXTERN(void) jsimd_idct_4x4_sse2
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

EXTERN(void) jsimd_idct_2x2_neon
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);
EXTERN(void) jsimd_idct_4x4_neon
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

EXTERN(void) jsimd_idct_2x2_mips_dspr2
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);
EXTERN(void) jsimd_idct_4x4_mips_dspr2
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col, int * workspace);
EXTERN(void) jsimd_idct_6x6_mips_dspr2
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);
EXTERN(void) jsimd_idct_12x12_pass1_mips_dspr2
        (JCOEFPTR coef_block, void * dct_table, int * workspace);
EXTERN(void) jsimd_idct_12x12_pass2_mips_dspr2
        (int * workspace, int * output);

/* Slow Integer Inverse DCT */
EXTERN(void) jsimd_idct_islow_mmx
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

extern const int jconst_idct_islow_sse2[];
EXTERN(void) jsimd_idct_islow_sse2
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

EXTERN(void) jsimd_idct_islow_neon
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

EXTERN(void) jsimd_idct_islow_mips_dspr2
        (void * dct_table, JCOEFPTR coef_block, int * output_buf,
         JSAMPLE * output_col);

EXTERN(void) jsimd_idct_islow_altivec
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

/* Fast Integer Inverse DCT */
EXTERN(void) jsimd_idct_ifast_mmx
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

extern const int jconst_idct_ifast_sse2[];
EXTERN(void) jsimd_idct_ifast_sse2
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

EXTERN(void) jsimd_idct_ifast_neon
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

EXTERN(void) jsimd_idct_ifast_cols_mips_dspr2
        (JCOEF * inptr, IFAST_MULT_TYPE * quantptr, DCTELEM * wsptr,
         const int * idct_coefs);
EXTERN(void) jsimd_idct_ifast_rows_mips_dspr2
        (DCTELEM * wsptr, JSAMPARRAY output_buf, JDIMENSION output_col,
         const int * idct_coefs);

EXTERN(void) jsimd_idct_ifast_altivec
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

/* Floating Point Inverse DCT */
EXTERN(void) jsimd_idct_float_3dnow
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

extern const int jconst_idct_float_sse[];
EXTERN(void) jsimd_idct_float_sse
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

extern const int jconst_idct_float_sse2[];
EXTERN(void) jsimd_idct_float_sse2
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
         JDIMENSION output_col);

/* Huffman coding */
extern const int jconst_huff_encode_one_block[];
EXTERN(JOCTET*) jsimd_huff_encode_one_block_sse2
        (void * state, JOCTET *buffer, JCOEFPTR block, int last_dc_val,
         c_derived_tbl *dctbl, c_derived_tbl *actbl);

EXTERN(JOCTET*) jsimd_huff_encode_one_block_neon
        (void * state, JOCTET *buffer, JCOEFPTR block, int last_dc_val,
         c_derived_tbl *dctbl, c_derived_tbl *actbl);