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src/3rdparty/libjpeg/jdct.h
branchGCC_SURGE
changeset 31 5daf16870df6
parent 30 5dc02b23752f
equal deleted inserted replaced
27:93b982ccede2 31:5daf16870df6 
    12  * machine-dependent tuning (e.g., assembly coding).
 
    12  * machine-dependent tuning (e.g., assembly coding).
 
    13  */
 
    13  */
 
    14 
    14 
    15 
    15 
    16 /*
 
    16 /*
 
    17  * A forward DCT routine is given a pointer to a work area of type DCTELEM[];
 
    17  * A forward DCT routine is given a pointer to an input sample array and
 
    18  * the DCT is to be performed in-place in that buffer.  Type DCTELEM is int
 
    18  * a pointer to a work area of type DCTELEM[]; the DCT is to be performed
 
    19  * for 8-bit samples, INT32 for 12-bit samples.  (NOTE: Floating-point DCT
 
    19  * in-place in that buffer.  Type DCTELEM is int for 8-bit samples, INT32
 
    20  * implementations use an array of type FAST_FLOAT, instead.)
 
    20  * for 12-bit samples.  (NOTE: Floating-point DCT implementations use an
 
    21  * The DCT inputs are expected to be signed (range +-CENTERJSAMPLE).
 
    21  * array of type FAST_FLOAT, instead.)
 
       
    22  * The input data is to be fetched from the sample array starting at a
 
       
    23  * specified column.  (Any row offset needed will be applied to the array
 
       
    24  * pointer before it is passed to the FDCT code.)
 
       
    25  * Note that the number of samples fetched by the FDCT routine is
 
       
    26  * DCT_h_scaled_size * DCT_v_scaled_size.
 
    22  * The DCT outputs are returned scaled up by a factor of 8; they therefore
 
    27  * The DCT outputs are returned scaled up by a factor of 8; they therefore
 
    23  * have a range of +-8K for 8-bit data, +-128K for 12-bit data.  This
 
    28  * have a range of +-8K for 8-bit data, +-128K for 12-bit data.  This
 
    24  * convention improves accuracy in integer implementations and saves some
 
    29  * convention improves accuracy in integer implementations and saves some
 
    25  * work in floating-point ones.
 
    30  * work in floating-point ones.
 
    26  * Quantization of the output coefficients is done by jcdctmgr.c.
 
    31  * Quantization of the output coefficients is done by jcdctmgr.c.
 
    30 typedef int DCTELEM;		/* 16 or 32 bits is fine */
 
    35 typedef int DCTELEM;		/* 16 or 32 bits is fine */
 
    31 #else
 
    36 #else
 
    32 typedef INT32 DCTELEM;		/* must have 32 bits */
 
    37 typedef INT32 DCTELEM;		/* must have 32 bits */
 
    33 #endif
 
    38 #endif
 
    34 
    39 
    35 typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data));
 
    40 typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data,
 
    36 typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data));
 
    41 					       JSAMPARRAY sample_data,
 
       
    42 					       JDIMENSION start_col));
 
       
    43 typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data,
 
       
    44 					     JSAMPARRAY sample_data,
 
       
    45 					     JDIMENSION start_col));
 
    37 
    46 
    38 
    47 
    39 /*
 
    48 /*
 
    40  * An inverse DCT routine is given a pointer to the input JBLOCK and a pointer
 
    49  * An inverse DCT routine is given a pointer to the input JBLOCK and a pointer
 
    41  * to an output sample array.  The routine must dequantize the input data as
 
    50  * to an output sample array.  The routine must dequantize the input data as
 
    42  * well as perform the IDCT; for dequantization, it uses the multiplier table
 
    51  * well as perform the IDCT; for dequantization, it uses the multiplier table
 
    43  * pointed to by compptr->dct_table.  The output data is to be placed into the
 
    52  * pointed to by compptr->dct_table.  The output data is to be placed into the
 
    44  * sample array starting at a specified column.  (Any row offset needed will
 
    53  * sample array starting at a specified column.  (Any row offset needed will
 
    45  * be applied to the array pointer before it is passed to the IDCT code.)
 
    54  * be applied to the array pointer before it is passed to the IDCT code.)
 
    46  * Note that the number of samples emitted by the IDCT routine is
 
    55  * Note that the number of samples emitted by the IDCT routine is
 
    47  * DCT_scaled_size * DCT_scaled_size.
 
    56  * DCT_h_scaled_size * DCT_v_scaled_size.
 
    48  */
 
    57  */
 
    49 
    58 
    50 /* typedef inverse_DCT_method_ptr is declared in jpegint.h */
 
    59 /* typedef inverse_DCT_method_ptr is declared in jpegint.h */
 
    51 
    60 
    52 /*
 
    61 /*
 
    82 
    91 
    83 #ifdef NEED_SHORT_EXTERNAL_NAMES
 
    92 #ifdef NEED_SHORT_EXTERNAL_NAMES
 
    84 #define jpeg_fdct_islow		jFDislow
 
    93 #define jpeg_fdct_islow		jFDislow
 
    85 #define jpeg_fdct_ifast		jFDifast
 
    94 #define jpeg_fdct_ifast		jFDifast
 
    86 #define jpeg_fdct_float		jFDfloat
 
    95 #define jpeg_fdct_float		jFDfloat
 
       
    96 #define jpeg_fdct_7x7		jFD7x7
 
       
    97 #define jpeg_fdct_6x6		jFD6x6
 
       
    98 #define jpeg_fdct_5x5		jFD5x5
 
       
    99 #define jpeg_fdct_4x4		jFD4x4
 
       
   100 #define jpeg_fdct_3x3		jFD3x3
 
       
   101 #define jpeg_fdct_2x2		jFD2x2
 
       
   102 #define jpeg_fdct_1x1		jFD1x1
 
       
   103 #define jpeg_fdct_9x9		jFD9x9
 
       
   104 #define jpeg_fdct_10x10		jFD10x10
 
       
   105 #define jpeg_fdct_11x11		jFD11x11
 
       
   106 #define jpeg_fdct_12x12		jFD12x12
 
       
   107 #define jpeg_fdct_13x13		jFD13x13
 
       
   108 #define jpeg_fdct_14x14		jFD14x14
 
       
   109 #define jpeg_fdct_15x15		jFD15x15
 
       
   110 #define jpeg_fdct_16x16		jFD16x16
 
       
   111 #define jpeg_fdct_16x8		jFD16x8
 
       
   112 #define jpeg_fdct_14x7		jFD14x7
 
       
   113 #define jpeg_fdct_12x6		jFD12x6
 
       
   114 #define jpeg_fdct_10x5		jFD10x5
 
       
   115 #define jpeg_fdct_8x4		jFD8x4
 
       
   116 #define jpeg_fdct_6x3		jFD6x3
 
       
   117 #define jpeg_fdct_4x2		jFD4x2
 
       
   118 #define jpeg_fdct_2x1		jFD2x1
 
       
   119 #define jpeg_fdct_8x16		jFD8x16
 
       
   120 #define jpeg_fdct_7x14		jFD7x14
 
       
   121 #define jpeg_fdct_6x12		jFD6x12
 
       
   122 #define jpeg_fdct_5x10		jFD5x10
 
       
   123 #define jpeg_fdct_4x8		jFD4x8
 
       
   124 #define jpeg_fdct_3x6		jFD3x6
 
       
   125 #define jpeg_fdct_2x4		jFD2x4
 
       
   126 #define jpeg_fdct_1x2		jFD1x2
 
    87 #define jpeg_idct_islow		jRDislow
 
   127 #define jpeg_idct_islow		jRDislow
 
    88 #define jpeg_idct_ifast		jRDifast
 
   128 #define jpeg_idct_ifast		jRDifast
 
    89 #define jpeg_idct_float		jRDfloat
 
   129 #define jpeg_idct_float		jRDfloat
 
       
   130 #define jpeg_idct_7x7		jRD7x7
 
       
   131 #define jpeg_idct_6x6		jRD6x6
 
       
   132 #define jpeg_idct_5x5		jRD5x5
 
    90 #define jpeg_idct_4x4		jRD4x4
 
   133 #define jpeg_idct_4x4		jRD4x4
 
       
   134 #define jpeg_idct_3x3		jRD3x3
 
    91 #define jpeg_idct_2x2		jRD2x2
 
   135 #define jpeg_idct_2x2		jRD2x2
 
    92 #define jpeg_idct_1x1		jRD1x1
 
   136 #define jpeg_idct_1x1		jRD1x1
 
       
   137 #define jpeg_idct_9x9		jRD9x9
 
       
   138 #define jpeg_idct_10x10		jRD10x10
 
       
   139 #define jpeg_idct_11x11		jRD11x11
 
       
   140 #define jpeg_idct_12x12		jRD12x12
 
       
   141 #define jpeg_idct_13x13		jRD13x13
 
       
   142 #define jpeg_idct_14x14		jRD14x14
 
       
   143 #define jpeg_idct_15x15		jRD15x15
 
       
   144 #define jpeg_idct_16x16		jRD16x16
 
       
   145 #define jpeg_idct_16x8		jRD16x8
 
       
   146 #define jpeg_idct_14x7		jRD14x7
 
       
   147 #define jpeg_idct_12x6		jRD12x6
 
       
   148 #define jpeg_idct_10x5		jRD10x5
 
       
   149 #define jpeg_idct_8x4		jRD8x4
 
       
   150 #define jpeg_idct_6x3		jRD6x3
 
       
   151 #define jpeg_idct_4x2		jRD4x2
 
       
   152 #define jpeg_idct_2x1		jRD2x1
 
       
   153 #define jpeg_idct_8x16		jRD8x16
 
       
   154 #define jpeg_idct_7x14		jRD7x14
 
       
   155 #define jpeg_idct_6x12		jRD6x12
 
       
   156 #define jpeg_idct_5x10		jRD5x10
 
       
   157 #define jpeg_idct_4x8		jRD4x8
 
       
   158 #define jpeg_idct_3x6		jRD3x8
 
       
   159 #define jpeg_idct_2x4		jRD2x4
 
       
   160 #define jpeg_idct_1x2		jRD1x2
 
    93 #endif /* NEED_SHORT_EXTERNAL_NAMES */
 
   161 #endif /* NEED_SHORT_EXTERNAL_NAMES */
 
    94 
   162 
    95 /* Extern declarations for the forward and inverse DCT routines. */
 
   163 /* Extern declarations for the forward and inverse DCT routines. */
 
    96 
   164 
    97 EXTERN(void) jpeg_fdct_islow JPP((DCTELEM * data));
 
   165 EXTERN(void) jpeg_fdct_islow
 
    98 EXTERN(void) jpeg_fdct_ifast JPP((DCTELEM * data));
 
   166     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
    99 EXTERN(void) jpeg_fdct_float JPP((FAST_FLOAT * data));
 
   167 EXTERN(void) jpeg_fdct_ifast
 
       
   168     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   169 EXTERN(void) jpeg_fdct_float
 
       
   170     JPP((FAST_FLOAT * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   171 EXTERN(void) jpeg_fdct_7x7
 
       
   172     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   173 EXTERN(void) jpeg_fdct_6x6
 
       
   174     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   175 EXTERN(void) jpeg_fdct_5x5
 
       
   176     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   177 EXTERN(void) jpeg_fdct_4x4
 
       
   178     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   179 EXTERN(void) jpeg_fdct_3x3
 
       
   180     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   181 EXTERN(void) jpeg_fdct_2x2
 
       
   182     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   183 EXTERN(void) jpeg_fdct_1x1
 
       
   184     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   185 EXTERN(void) jpeg_fdct_9x9
 
       
   186     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   187 EXTERN(void) jpeg_fdct_10x10
 
       
   188     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   189 EXTERN(void) jpeg_fdct_11x11
 
       
   190     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   191 EXTERN(void) jpeg_fdct_12x12
 
       
   192     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   193 EXTERN(void) jpeg_fdct_13x13
 
       
   194     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   195 EXTERN(void) jpeg_fdct_14x14
 
       
   196     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   197 EXTERN(void) jpeg_fdct_15x15
 
       
   198     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   199 EXTERN(void) jpeg_fdct_16x16
 
       
   200     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   201 EXTERN(void) jpeg_fdct_16x8
 
       
   202     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   203 EXTERN(void) jpeg_fdct_14x7
 
       
   204     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   205 EXTERN(void) jpeg_fdct_12x6
 
       
   206     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   207 EXTERN(void) jpeg_fdct_10x5
 
       
   208     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   209 EXTERN(void) jpeg_fdct_8x4
 
       
   210     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   211 EXTERN(void) jpeg_fdct_6x3
 
       
   212     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   213 EXTERN(void) jpeg_fdct_4x2
 
       
   214     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   215 EXTERN(void) jpeg_fdct_2x1
 
       
   216     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   217 EXTERN(void) jpeg_fdct_8x16
 
       
   218     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   219 EXTERN(void) jpeg_fdct_7x14
 
       
   220     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   221 EXTERN(void) jpeg_fdct_6x12
 
       
   222     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   223 EXTERN(void) jpeg_fdct_5x10
 
       
   224     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   225 EXTERN(void) jpeg_fdct_4x8
 
       
   226     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   227 EXTERN(void) jpeg_fdct_3x6
 
       
   228     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   229 EXTERN(void) jpeg_fdct_2x4
 
       
   230     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
       
   231 EXTERN(void) jpeg_fdct_1x2
 
       
   232     JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
 
   100 
   233 
   101 EXTERN(void) jpeg_idct_islow
 
   234 EXTERN(void) jpeg_idct_islow
 
   102     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   235     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   103 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   236 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   104 EXTERN(void) jpeg_idct_ifast
 
   237 EXTERN(void) jpeg_idct_ifast
 
   105     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   238     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   106 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   239 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   107 EXTERN(void) jpeg_idct_float
 
   240 EXTERN(void) jpeg_idct_float
 
   108     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   241     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   109 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   242 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   243 EXTERN(void) jpeg_idct_7x7
 
       
   244     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   245 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   246 EXTERN(void) jpeg_idct_6x6
 
       
   247     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   248 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   249 EXTERN(void) jpeg_idct_5x5
 
       
   250     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   251 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   110 EXTERN(void) jpeg_idct_4x4
 
   252 EXTERN(void) jpeg_idct_4x4
 
   111     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   253     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   112 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   254 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   255 EXTERN(void) jpeg_idct_3x3
 
       
   256     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   257 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   113 EXTERN(void) jpeg_idct_2x2
 
   258 EXTERN(void) jpeg_idct_2x2
 
   114     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   259     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   115 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   260 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   116 EXTERN(void) jpeg_idct_1x1
 
   261 EXTERN(void) jpeg_idct_1x1
 
       
   262     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   263 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   264 EXTERN(void) jpeg_idct_9x9
 
       
   265     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   266 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   267 EXTERN(void) jpeg_idct_10x10
 
       
   268     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   269 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   270 EXTERN(void) jpeg_idct_11x11
 
       
   271     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   272 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   273 EXTERN(void) jpeg_idct_12x12
 
       
   274     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   275 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   276 EXTERN(void) jpeg_idct_13x13
 
       
   277     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   278 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   279 EXTERN(void) jpeg_idct_14x14
 
       
   280     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   281 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   282 EXTERN(void) jpeg_idct_15x15
 
       
   283     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   284 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   285 EXTERN(void) jpeg_idct_16x16
 
       
   286     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   287 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   288 EXTERN(void) jpeg_idct_16x8
 
       
   289     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   290 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   291 EXTERN(void) jpeg_idct_14x7
 
       
   292     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   293 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   294 EXTERN(void) jpeg_idct_12x6
 
       
   295     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   296 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   297 EXTERN(void) jpeg_idct_10x5
 
       
   298     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   299 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   300 EXTERN(void) jpeg_idct_8x4
 
       
   301     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   302 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   303 EXTERN(void) jpeg_idct_6x3
 
       
   304     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   305 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   306 EXTERN(void) jpeg_idct_4x2
 
       
   307     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   308 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   309 EXTERN(void) jpeg_idct_2x1
 
       
   310     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   311 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   312 EXTERN(void) jpeg_idct_8x16
 
       
   313     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   314 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   315 EXTERN(void) jpeg_idct_7x14
 
       
   316     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   317 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   318 EXTERN(void) jpeg_idct_6x12
 
       
   319     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   320 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   321 EXTERN(void) jpeg_idct_5x10
 
       
   322     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   323 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   324 EXTERN(void) jpeg_idct_4x8
 
       
   325     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   326 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   327 EXTERN(void) jpeg_idct_3x6
 
       
   328     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   329 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   330 EXTERN(void) jpeg_idct_2x4
 
       
   331     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
       
   332 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
       
   333 EXTERN(void) jpeg_idct_1x2
 
   117     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   334     JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
 
   118 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   335 	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
 
   119 
   336 
   120 
   337 
   121 /*
 
   338 /*
FCL/sf/mw/qt