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      1 /*
      2  * jsimd_none.c
      3  *
      4  * Copyright 2009 Pierre Ossman <ossman (at) cendio.se> for Cendio AB
      5  * Copyright 2009-2011, 2014 D. R. Commander
      6  *
      7  * Based on the x86 SIMD extension for IJG JPEG library,
      8  * Copyright (C) 1999-2006, MIYASAKA Masaru.
      9  * For conditions of distribution and use, see copyright notice in jsimdext.inc
     10  *
     11  * This file contains stubs for when there is no SIMD support available.
     12  */
     13 
     14 #define JPEG_INTERNALS
     15 #include "jinclude.h"
     16 #include "jpeglib.h"
     17 #include "jsimd.h"
     18 #include "jdct.h"
     19 #include "jsimddct.h"
     20 
     21 GLOBAL(int)
     22 jsimd_can_rgb_ycc (void)
     23 {
     24   return 0;
     25 }
     26 
     27 GLOBAL(int)
     28 jsimd_can_rgb_gray (void)
     29 {
     30   return 0;
     31 }
     32 
     33 GLOBAL(int)
     34 jsimd_can_ycc_rgb (void)
     35 {
     36   return 0;
     37 }
     38 
     39 GLOBAL(int)
     40 jsimd_can_ycc_rgb565 (void)
     41 {
     42   return 0;
     43 }
     44 
     45 GLOBAL(int)
     46 jsimd_c_can_null_convert (void)
     47 {
     48   return 0;
     49 }
     50 
     51 GLOBAL(void)
     52 jsimd_rgb_ycc_convert (j_compress_ptr cinfo,
     53                        JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
     54                        JDIMENSION output_row, int num_rows)
     55 {
     56 }
     57 
     58 GLOBAL(void)
     59 jsimd_rgb_gray_convert (j_compress_ptr cinfo,
     60                         JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
     61                         JDIMENSION output_row, int num_rows)
     62 {
     63 }
     64 
     65 GLOBAL(void)
     66 jsimd_ycc_rgb_convert (j_decompress_ptr cinfo,
     67                        JSAMPIMAGE input_buf, JDIMENSION input_row,
     68                        JSAMPARRAY output_buf, int num_rows)
     69 {
     70 }
     71 
     72 GLOBAL(void)
     73 jsimd_ycc_rgb565_convert (j_decompress_ptr cinfo,
     74                           JSAMPIMAGE input_buf, JDIMENSION input_row,
     75                           JSAMPARRAY output_buf, int num_rows)
     76 {
     77 }
     78 
     79 GLOBAL(void)
     80 jsimd_c_null_convert (j_compress_ptr cinfo,
     81                       JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
     82                       JDIMENSION output_row, int num_rows)
     83 {
     84 }
     85 
     86 GLOBAL(int)
     87 jsimd_can_h2v2_downsample (void)
     88 {
     89   return 0;
     90 }
     91 
     92 GLOBAL(int)
     93 jsimd_can_h2v1_downsample (void)
     94 {
     95   return 0;
     96 }
     97 
     98 GLOBAL(int)
     99 jsimd_can_h2v2_smooth_downsample (void)
    100 {
    101   return 0;
    102 }
    103 
    104 GLOBAL(void)
    105 jsimd_h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
    106                        JSAMPARRAY input_data, JSAMPARRAY output_data)
    107 {
    108 }
    109 
    110 GLOBAL(void)
    111 jsimd_h2v2_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
    112                        JSAMPARRAY input_data, JSAMPARRAY output_data)
    113 {
    114 }
    115 
    116 GLOBAL(void)
    117 jsimd_h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
    118                        JSAMPARRAY input_data, JSAMPARRAY output_data)
    119 {
    120 }
    121 
    122 GLOBAL(int)
    123 jsimd_can_h2v2_upsample (void)
    124 {
    125   return 0;
    126 }
    127 
    128 GLOBAL(int)
    129 jsimd_can_h2v1_upsample (void)
    130 {
    131   return 0;
    132 }
    133 
    134 GLOBAL(int)
    135 jsimd_can_int_upsample (void)
    136 {
    137   return 0;
    138 }
    139 
    140 GLOBAL(void)
    141 jsimd_int_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    142                       JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
    143 {
    144 }
    145 
    146 GLOBAL(void)
    147 jsimd_h2v2_upsample (j_decompress_ptr cinfo,
    148                      jpeg_component_info * compptr,
    149                      JSAMPARRAY input_data,
    150                      JSAMPARRAY * output_data_ptr)
    151 {
    152 }
    153 
    154 GLOBAL(void)
    155 jsimd_h2v1_upsample (j_decompress_ptr cinfo,
    156                      jpeg_component_info * compptr,
    157                      JSAMPARRAY input_data,
    158                      JSAMPARRAY * output_data_ptr)
    159 {
    160 }
    161 
    162 GLOBAL(int)
    163 jsimd_can_h2v2_fancy_upsample (void)
    164 {
    165   return 0;
    166 }
    167 
    168 GLOBAL(int)
    169 jsimd_can_h2v1_fancy_upsample (void)
    170 {
    171   return 0;
    172 }
    173 
    174 GLOBAL(void)
    175 jsimd_h2v2_fancy_upsample (j_decompress_ptr cinfo,
    176                            jpeg_component_info * compptr,
    177                            JSAMPARRAY input_data,
    178                            JSAMPARRAY * output_data_ptr)
    179 {
    180 }
    181 
    182 GLOBAL(void)
    183 jsimd_h2v1_fancy_upsample (j_decompress_ptr cinfo,
    184                            jpeg_component_info * compptr,
    185                            JSAMPARRAY input_data,
    186                            JSAMPARRAY * output_data_ptr)
    187 {
    188 }
    189 
    190 GLOBAL(int)
    191 jsimd_can_h2v2_merged_upsample (void)
    192 {
    193   return 0;
    194 }
    195 
    196 GLOBAL(int)
    197 jsimd_can_h2v1_merged_upsample (void)
    198 {
    199   return 0;
    200 }
    201 
    202 GLOBAL(void)
    203 jsimd_h2v2_merged_upsample (j_decompress_ptr cinfo,
    204                             JSAMPIMAGE input_buf,
    205                             JDIMENSION in_row_group_ctr,
    206                             JSAMPARRAY output_buf)
    207 {
    208 }
    209 
    210 GLOBAL(void)
    211 jsimd_h2v1_merged_upsample (j_decompress_ptr cinfo,
    212                             JSAMPIMAGE input_buf,
    213                             JDIMENSION in_row_group_ctr,
    214                             JSAMPARRAY output_buf)
    215 {
    216 }
    217 
    218 GLOBAL(int)
    219 jsimd_can_convsamp (void)
    220 {
    221   return 0;
    222 }
    223 
    224 GLOBAL(int)
    225 jsimd_can_convsamp_float (void)
    226 {
    227   return 0;
    228 }
    229 
    230 GLOBAL(void)
    231 jsimd_convsamp (JSAMPARRAY sample_data, JDIMENSION start_col,
    232                 DCTELEM * workspace)
    233 {
    234 }
    235 
    236 GLOBAL(void)
    237 jsimd_convsamp_float (JSAMPARRAY sample_data, JDIMENSION start_col,
    238                       FAST_FLOAT * workspace)
    239 {
    240 }
    241 
    242 GLOBAL(int)
    243 jsimd_can_fdct_islow (void)
    244 {
    245   return 0;
    246 }
    247 
    248 GLOBAL(int)
    249 jsimd_can_fdct_ifast (void)
    250 {
    251   return 0;
    252 }
    253 
    254 GLOBAL(int)
    255 jsimd_can_fdct_float (void)
    256 {
    257   return 0;
    258 }
    259 
    260 GLOBAL(void)
    261 jsimd_fdct_islow (DCTELEM * data)
    262 {
    263 }
    264 
    265 GLOBAL(void)
    266 jsimd_fdct_ifast (DCTELEM * data)
    267 {
    268 }
    269 
    270 GLOBAL(void)
    271 jsimd_fdct_float (FAST_FLOAT * data)
    272 {
    273 }
    274 
    275 GLOBAL(int)
    276 jsimd_can_quantize (void)
    277 {
    278   return 0;
    279 }
    280 
    281 GLOBAL(int)
    282 jsimd_can_quantize_float (void)
    283 {
    284   return 0;
    285 }
    286 
    287 GLOBAL(void)
    288 jsimd_quantize (JCOEFPTR coef_block, DCTELEM * divisors,
    289                 DCTELEM * workspace)
    290 {
    291 }
    292 
    293 GLOBAL(void)
    294 jsimd_quantize_float (JCOEFPTR coef_block, FAST_FLOAT * divisors,
    295                       FAST_FLOAT * workspace)
    296 {
    297 }
    298 
    299 GLOBAL(int)
    300 jsimd_can_idct_2x2 (void)
    301 {
    302   return 0;
    303 }
    304 
    305 GLOBAL(int)
    306 jsimd_can_idct_4x4 (void)
    307 {
    308   return 0;
    309 }
    310 
    311 GLOBAL(int)
    312 jsimd_can_idct_6x6 (void)
    313 {
    314   return 0;
    315 }
    316 
    317 GLOBAL(int)
    318 jsimd_can_idct_12x12 (void)
    319 {
    320   return 0;
    321 }
    322 
    323 GLOBAL(void)
    324 jsimd_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    325                 JCOEFPTR coef_block, JSAMPARRAY output_buf,
    326                 JDIMENSION output_col)
    327 {
    328 }
    329 
    330 GLOBAL(void)
    331 jsimd_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    332                 JCOEFPTR coef_block, JSAMPARRAY output_buf,
    333                 JDIMENSION output_col)
    334 {
    335 }
    336 
    337 GLOBAL(void)
    338 jsimd_idct_6x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    339                 JCOEFPTR coef_block, JSAMPARRAY output_buf,
    340                 JDIMENSION output_col)
    341 {
    342 }
    343 
    344 GLOBAL(void)
    345 jsimd_idct_12x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    346                   JCOEFPTR coef_block, JSAMPARRAY output_buf,
    347                   JDIMENSION output_col)
    348 {
    349 }
    350 
    351 GLOBAL(int)
    352 jsimd_can_idct_islow (void)
    353 {
    354   return 0;
    355 }
    356 
    357 GLOBAL(int)
    358 jsimd_can_idct_ifast (void)
    359 {
    360   return 0;
    361 }
    362 
    363 GLOBAL(int)
    364 jsimd_can_idct_float (void)
    365 {
    366   return 0;
    367 }
    368 
    369 GLOBAL(void)
    370 jsimd_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    371                   JCOEFPTR coef_block, JSAMPARRAY output_buf,
    372                   JDIMENSION output_col)
    373 {
    374 }
    375 
    376 GLOBAL(void)
    377 jsimd_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    378                   JCOEFPTR coef_block, JSAMPARRAY output_buf,
    379                   JDIMENSION output_col)
    380 {
    381 }
    382 
    383 GLOBAL(void)
    384 jsimd_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
    385                   JCOEFPTR coef_block, JSAMPARRAY output_buf,
    386                   JDIMENSION output_col)
    387 {
    388 }
    389 
    390