Shoaib Ahmed / Mbed 2 deprecated uzairkhan

Final 350 project

Dependencies:   uzair Camera_LS_Y201 F7_Ethernet LCD_DISCO_F746NG NetworkAPI SDFileSystem mbed

includes/jmorecfg.h@0:791a779d6220, 2017-07-31 (annotated)

Committer:
shoaib_ahmed
Date:
Mon Jul 31 09:16:35 2017 +0000
Revision:
0:791a779d6220
final project;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shoaib_ahmed 0:791a779d6220 1 /*
shoaib_ahmed 0:791a779d6220 2 * jmorecfg.h
shoaib_ahmed 0:791a779d6220 3 *
shoaib_ahmed 0:791a779d6220 4 * Copyright (C) 1991-1997, Thomas G. Lane.
shoaib_ahmed 0:791a779d6220 5 * Modified 1997-2013 by Guido Vollbeding.
shoaib_ahmed 0:791a779d6220 6 * This file is part of the Independent JPEG Group's software.
shoaib_ahmed 0:791a779d6220 7 * For conditions of distribution and use, see the accompanying README file.
shoaib_ahmed 0:791a779d6220 8 *
shoaib_ahmed 0:791a779d6220 9 * This file contains additional configuration options that customize the
shoaib_ahmed 0:791a779d6220 10 * JPEG software for special applications or support machine-dependent
shoaib_ahmed 0:791a779d6220 11 * optimizations. Most users will not need to touch this file.
shoaib_ahmed 0:791a779d6220 12 */
shoaib_ahmed 0:791a779d6220 13
shoaib_ahmed 0:791a779d6220 14
shoaib_ahmed 0:791a779d6220 15 /*
shoaib_ahmed 0:791a779d6220 16 * Define BITS_IN_JSAMPLE as either
shoaib_ahmed 0:791a779d6220 17 * 8 for 8-bit sample values (the usual setting)
shoaib_ahmed 0:791a779d6220 18 * 9 for 9-bit sample values
shoaib_ahmed 0:791a779d6220 19 * 10 for 10-bit sample values
shoaib_ahmed 0:791a779d6220 20 * 11 for 11-bit sample values
shoaib_ahmed 0:791a779d6220 21 * 12 for 12-bit sample values
shoaib_ahmed 0:791a779d6220 22 * Only 8, 9, 10, 11, and 12 bits sample data precision are supported for
shoaib_ahmed 0:791a779d6220 23 * full-feature DCT processing. Further depths up to 16-bit may be added
shoaib_ahmed 0:791a779d6220 24 * later for the lossless modes of operation.
shoaib_ahmed 0:791a779d6220 25 * Run-time selection and conversion of data precision will be added later
shoaib_ahmed 0:791a779d6220 26 * and are currently not supported, sorry.
shoaib_ahmed 0:791a779d6220 27 * Exception: The transcoding part (jpegtran) supports all settings in a
shoaib_ahmed 0:791a779d6220 28 * single instance, since it operates on the level of DCT coefficients and
shoaib_ahmed 0:791a779d6220 29 * not sample values. The DCT coefficients are of the same type (16 bits)
shoaib_ahmed 0:791a779d6220 30 * in all cases (see below).
shoaib_ahmed 0:791a779d6220 31 */
shoaib_ahmed 0:791a779d6220 32
shoaib_ahmed 0:791a779d6220 33 #define BITS_IN_JSAMPLE 8 /* use 8, 9, 10, 11, or 12 */
shoaib_ahmed 0:791a779d6220 34
shoaib_ahmed 0:791a779d6220 35
shoaib_ahmed 0:791a779d6220 36 /*
shoaib_ahmed 0:791a779d6220 37 * Maximum number of components (color channels) allowed in JPEG image.
shoaib_ahmed 0:791a779d6220 38 * To meet the letter of the JPEG spec, set this to 255. However, darn
shoaib_ahmed 0:791a779d6220 39 * few applications need more than 4 channels (maybe 5 for CMYK + alpha
shoaib_ahmed 0:791a779d6220 40 * mask). We recommend 10 as a reasonable compromise; use 4 if you are
shoaib_ahmed 0:791a779d6220 41 * really short on memory. (Each allowed component costs a hundred or so
shoaib_ahmed 0:791a779d6220 42 * bytes of storage, whether actually used in an image or not.)
shoaib_ahmed 0:791a779d6220 43 */
shoaib_ahmed 0:791a779d6220 44
shoaib_ahmed 0:791a779d6220 45 #define MAX_COMPONENTS 10 /* maximum number of image components */
shoaib_ahmed 0:791a779d6220 46
shoaib_ahmed 0:791a779d6220 47
shoaib_ahmed 0:791a779d6220 48 /*
shoaib_ahmed 0:791a779d6220 49 * Basic data types.
shoaib_ahmed 0:791a779d6220 50 * You may need to change these if you have a machine with unusual data
shoaib_ahmed 0:791a779d6220 51 * type sizes; for example, "char" not 8 bits, "short" not 16 bits,
shoaib_ahmed 0:791a779d6220 52 * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits,
shoaib_ahmed 0:791a779d6220 53 * but it had better be at least 16.
shoaib_ahmed 0:791a779d6220 54 */
shoaib_ahmed 0:791a779d6220 55
shoaib_ahmed 0:791a779d6220 56 /* Representation of a single sample (pixel element value).
shoaib_ahmed 0:791a779d6220 57 * We frequently allocate large arrays of these, so it's important to keep
shoaib_ahmed 0:791a779d6220 58 * them small. But if you have memory to burn and access to char or short
shoaib_ahmed 0:791a779d6220 59 * arrays is very slow on your hardware, you might want to change these.
shoaib_ahmed 0:791a779d6220 60 */
shoaib_ahmed 0:791a779d6220 61
shoaib_ahmed 0:791a779d6220 62 #if BITS_IN_JSAMPLE == 8
shoaib_ahmed 0:791a779d6220 63 /* JSAMPLE should be the smallest type that will hold the values 0..255.
shoaib_ahmed 0:791a779d6220 64 * You can use a signed char by having GETJSAMPLE mask it with 0xFF.
shoaib_ahmed 0:791a779d6220 65 */
shoaib_ahmed 0:791a779d6220 66
shoaib_ahmed 0:791a779d6220 67 #ifdef HAVE_UNSIGNED_CHAR
shoaib_ahmed 0:791a779d6220 68
shoaib_ahmed 0:791a779d6220 69 typedef unsigned char JSAMPLE;
shoaib_ahmed 0:791a779d6220 70 #define GETJSAMPLE(value) ((int) (value))
shoaib_ahmed 0:791a779d6220 71
shoaib_ahmed 0:791a779d6220 72 #else /* not HAVE_UNSIGNED_CHAR */
shoaib_ahmed 0:791a779d6220 73
shoaib_ahmed 0:791a779d6220 74 typedef char JSAMPLE;
shoaib_ahmed 0:791a779d6220 75 #ifdef CHAR_IS_UNSIGNED
shoaib_ahmed 0:791a779d6220 76 #define GETJSAMPLE(value) ((int) (value))
shoaib_ahmed 0:791a779d6220 77 #else
shoaib_ahmed 0:791a779d6220 78 #define GETJSAMPLE(value) ((int) (value) & 0xFF)
shoaib_ahmed 0:791a779d6220 79 #endif /* CHAR_IS_UNSIGNED */
shoaib_ahmed 0:791a779d6220 80
shoaib_ahmed 0:791a779d6220 81 #endif /* HAVE_UNSIGNED_CHAR */
shoaib_ahmed 0:791a779d6220 82
shoaib_ahmed 0:791a779d6220 83 #define MAXJSAMPLE 255
shoaib_ahmed 0:791a779d6220 84 #define CENTERJSAMPLE 128
shoaib_ahmed 0:791a779d6220 85
shoaib_ahmed 0:791a779d6220 86 #endif /* BITS_IN_JSAMPLE == 8 */
shoaib_ahmed 0:791a779d6220 87
shoaib_ahmed 0:791a779d6220 88
shoaib_ahmed 0:791a779d6220 89 #if BITS_IN_JSAMPLE == 9
shoaib_ahmed 0:791a779d6220 90 /* JSAMPLE should be the smallest type that will hold the values 0..511.
shoaib_ahmed 0:791a779d6220 91 * On nearly all machines "short" will do nicely.
shoaib_ahmed 0:791a779d6220 92 */
shoaib_ahmed 0:791a779d6220 93
shoaib_ahmed 0:791a779d6220 94 typedef short JSAMPLE;
shoaib_ahmed 0:791a779d6220 95 #define GETJSAMPLE(value) ((int) (value))
shoaib_ahmed 0:791a779d6220 96
shoaib_ahmed 0:791a779d6220 97 #define MAXJSAMPLE 511
shoaib_ahmed 0:791a779d6220 98 #define CENTERJSAMPLE 256
shoaib_ahmed 0:791a779d6220 99
shoaib_ahmed 0:791a779d6220 100 #endif /* BITS_IN_JSAMPLE == 9 */
shoaib_ahmed 0:791a779d6220 101
shoaib_ahmed 0:791a779d6220 102
shoaib_ahmed 0:791a779d6220 103 #if BITS_IN_JSAMPLE == 10
shoaib_ahmed 0:791a779d6220 104 /* JSAMPLE should be the smallest type that will hold the values 0..1023.
shoaib_ahmed 0:791a779d6220 105 * On nearly all machines "short" will do nicely.
shoaib_ahmed 0:791a779d6220 106 */
shoaib_ahmed 0:791a779d6220 107
shoaib_ahmed 0:791a779d6220 108 typedef short JSAMPLE;
shoaib_ahmed 0:791a779d6220 109 #define GETJSAMPLE(value) ((int) (value))
shoaib_ahmed 0:791a779d6220 110
shoaib_ahmed 0:791a779d6220 111 #define MAXJSAMPLE 1023
shoaib_ahmed 0:791a779d6220 112 #define CENTERJSAMPLE 512
shoaib_ahmed 0:791a779d6220 113
shoaib_ahmed 0:791a779d6220 114 #endif /* BITS_IN_JSAMPLE == 10 */
shoaib_ahmed 0:791a779d6220 115
shoaib_ahmed 0:791a779d6220 116
shoaib_ahmed 0:791a779d6220 117 #if BITS_IN_JSAMPLE == 11
shoaib_ahmed 0:791a779d6220 118 /* JSAMPLE should be the smallest type that will hold the values 0..2047.
shoaib_ahmed 0:791a779d6220 119 * On nearly all machines "short" will do nicely.
shoaib_ahmed 0:791a779d6220 120 */
shoaib_ahmed 0:791a779d6220 121
shoaib_ahmed 0:791a779d6220 122 typedef short JSAMPLE;
shoaib_ahmed 0:791a779d6220 123 #define GETJSAMPLE(value) ((int) (value))
shoaib_ahmed 0:791a779d6220 124
shoaib_ahmed 0:791a779d6220 125 #define MAXJSAMPLE 2047
shoaib_ahmed 0:791a779d6220 126 #define CENTERJSAMPLE 1024
shoaib_ahmed 0:791a779d6220 127
shoaib_ahmed 0:791a779d6220 128 #endif /* BITS_IN_JSAMPLE == 11 */
shoaib_ahmed 0:791a779d6220 129
shoaib_ahmed 0:791a779d6220 130
shoaib_ahmed 0:791a779d6220 131 #if BITS_IN_JSAMPLE == 12
shoaib_ahmed 0:791a779d6220 132 /* JSAMPLE should be the smallest type that will hold the values 0..4095.
shoaib_ahmed 0:791a779d6220 133 * On nearly all machines "short" will do nicely.
shoaib_ahmed 0:791a779d6220 134 */
shoaib_ahmed 0:791a779d6220 135
shoaib_ahmed 0:791a779d6220 136 typedef short JSAMPLE;
shoaib_ahmed 0:791a779d6220 137 #define GETJSAMPLE(value) ((int) (value))
shoaib_ahmed 0:791a779d6220 138
shoaib_ahmed 0:791a779d6220 139 #define MAXJSAMPLE 4095
shoaib_ahmed 0:791a779d6220 140 #define CENTERJSAMPLE 2048
shoaib_ahmed 0:791a779d6220 141
shoaib_ahmed 0:791a779d6220 142 #endif /* BITS_IN_JSAMPLE == 12 */
shoaib_ahmed 0:791a779d6220 143
shoaib_ahmed 0:791a779d6220 144
shoaib_ahmed 0:791a779d6220 145 /* Representation of a DCT frequency coefficient.
shoaib_ahmed 0:791a779d6220 146 * This should be a signed value of at least 16 bits; "short" is usually OK.
shoaib_ahmed 0:791a779d6220 147 * Again, we allocate large arrays of these, but you can change to int
shoaib_ahmed 0:791a779d6220 148 * if you have memory to burn and "short" is really slow.
shoaib_ahmed 0:791a779d6220 149 */
shoaib_ahmed 0:791a779d6220 150
shoaib_ahmed 0:791a779d6220 151 typedef short JCOEF;
shoaib_ahmed 0:791a779d6220 152
shoaib_ahmed 0:791a779d6220 153
shoaib_ahmed 0:791a779d6220 154 /* Compressed datastreams are represented as arrays of JOCTET.
shoaib_ahmed 0:791a779d6220 155 * These must be EXACTLY 8 bits wide, at least once they are written to
shoaib_ahmed 0:791a779d6220 156 * external storage. Note that when using the stdio data source/destination
shoaib_ahmed 0:791a779d6220 157 * managers, this is also the data type passed to fread/fwrite.
shoaib_ahmed 0:791a779d6220 158 */
shoaib_ahmed 0:791a779d6220 159
shoaib_ahmed 0:791a779d6220 160 #ifdef HAVE_UNSIGNED_CHAR
shoaib_ahmed 0:791a779d6220 161
shoaib_ahmed 0:791a779d6220 162 typedef unsigned char JOCTET;
shoaib_ahmed 0:791a779d6220 163 #define GETJOCTET(value) (value)
shoaib_ahmed 0:791a779d6220 164
shoaib_ahmed 0:791a779d6220 165 #else /* not HAVE_UNSIGNED_CHAR */
shoaib_ahmed 0:791a779d6220 166
shoaib_ahmed 0:791a779d6220 167 typedef char JOCTET;
shoaib_ahmed 0:791a779d6220 168 #ifdef CHAR_IS_UNSIGNED
shoaib_ahmed 0:791a779d6220 169 #define GETJOCTET(value) (value)
shoaib_ahmed 0:791a779d6220 170 #else
shoaib_ahmed 0:791a779d6220 171 #define GETJOCTET(value) ((value) & 0xFF)
shoaib_ahmed 0:791a779d6220 172 #endif /* CHAR_IS_UNSIGNED */
shoaib_ahmed 0:791a779d6220 173
shoaib_ahmed 0:791a779d6220 174 #endif /* HAVE_UNSIGNED_CHAR */
shoaib_ahmed 0:791a779d6220 175
shoaib_ahmed 0:791a779d6220 176
shoaib_ahmed 0:791a779d6220 177 /* These typedefs are used for various table entries and so forth.
shoaib_ahmed 0:791a779d6220 178 * They must be at least as wide as specified; but making them too big
shoaib_ahmed 0:791a779d6220 179 * won't cost a huge amount of memory, so we don't provide special
shoaib_ahmed 0:791a779d6220 180 * extraction code like we did for JSAMPLE. (In other words, these
shoaib_ahmed 0:791a779d6220 181 * typedefs live at a different point on the speed/space tradeoff curve.)
shoaib_ahmed 0:791a779d6220 182 */
shoaib_ahmed 0:791a779d6220 183
shoaib_ahmed 0:791a779d6220 184 /* UINT8 must hold at least the values 0..255. */
shoaib_ahmed 0:791a779d6220 185
shoaib_ahmed 0:791a779d6220 186 #ifdef HAVE_UNSIGNED_CHAR
shoaib_ahmed 0:791a779d6220 187 typedef unsigned char UINT8;
shoaib_ahmed 0:791a779d6220 188 #else /* not HAVE_UNSIGNED_CHAR */
shoaib_ahmed 0:791a779d6220 189 #ifdef CHAR_IS_UNSIGNED
shoaib_ahmed 0:791a779d6220 190 typedef char UINT8;
shoaib_ahmed 0:791a779d6220 191 #else /* not CHAR_IS_UNSIGNED */
shoaib_ahmed 0:791a779d6220 192 typedef short UINT8;
shoaib_ahmed 0:791a779d6220 193 #endif /* CHAR_IS_UNSIGNED */
shoaib_ahmed 0:791a779d6220 194 #endif /* HAVE_UNSIGNED_CHAR */
shoaib_ahmed 0:791a779d6220 195
shoaib_ahmed 0:791a779d6220 196 /* UINT16 must hold at least the values 0..65535. */
shoaib_ahmed 0:791a779d6220 197
shoaib_ahmed 0:791a779d6220 198 #ifdef HAVE_UNSIGNED_SHORT
shoaib_ahmed 0:791a779d6220 199 typedef unsigned short UINT16;
shoaib_ahmed 0:791a779d6220 200 #else /* not HAVE_UNSIGNED_SHORT */
shoaib_ahmed 0:791a779d6220 201 typedef unsigned int UINT16;
shoaib_ahmed 0:791a779d6220 202 #endif /* HAVE_UNSIGNED_SHORT */
shoaib_ahmed 0:791a779d6220 203
shoaib_ahmed 0:791a779d6220 204 /* INT16 must hold at least the values -32768..32767. */
shoaib_ahmed 0:791a779d6220 205
shoaib_ahmed 0:791a779d6220 206 #ifndef XMD_H /* X11/xmd.h correctly defines INT16 */
shoaib_ahmed 0:791a779d6220 207 typedef short INT16;
shoaib_ahmed 0:791a779d6220 208 #endif
shoaib_ahmed 0:791a779d6220 209
shoaib_ahmed 0:791a779d6220 210 /* INT32 must hold at least signed 32-bit values. */
shoaib_ahmed 0:791a779d6220 211
shoaib_ahmed 0:791a779d6220 212 #ifndef XMD_H /* X11/xmd.h correctly defines INT32 */
shoaib_ahmed 0:791a779d6220 213 #ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */
shoaib_ahmed 0:791a779d6220 214 #ifndef _BASETSD_H /* MinGW is slightly different */
shoaib_ahmed 0:791a779d6220 215 #ifndef QGLOBAL_H /* Qt defines it in qglobal.h */
shoaib_ahmed 0:791a779d6220 216 typedef long INT32;
shoaib_ahmed 0:791a779d6220 217 #endif
shoaib_ahmed 0:791a779d6220 218 #endif
shoaib_ahmed 0:791a779d6220 219 #endif
shoaib_ahmed 0:791a779d6220 220 #endif
shoaib_ahmed 0:791a779d6220 221
shoaib_ahmed 0:791a779d6220 222 /* Datatype used for image dimensions. The JPEG standard only supports
shoaib_ahmed 0:791a779d6220 223 * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore
shoaib_ahmed 0:791a779d6220 224 * "unsigned int" is sufficient on all machines. However, if you need to
shoaib_ahmed 0:791a779d6220 225 * handle larger images and you don't mind deviating from the spec, you
shoaib_ahmed 0:791a779d6220 226 * can change this datatype.
shoaib_ahmed 0:791a779d6220 227 */
shoaib_ahmed 0:791a779d6220 228
shoaib_ahmed 0:791a779d6220 229 typedef unsigned int JDIMENSION;
shoaib_ahmed 0:791a779d6220 230
shoaib_ahmed 0:791a779d6220 231 #define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */
shoaib_ahmed 0:791a779d6220 232
shoaib_ahmed 0:791a779d6220 233
shoaib_ahmed 0:791a779d6220 234 /* These macros are used in all function definitions and extern declarations.
shoaib_ahmed 0:791a779d6220 235 * You could modify them if you need to change function linkage conventions;
shoaib_ahmed 0:791a779d6220 236 * in particular, you'll need to do that to make the library a Windows DLL.
shoaib_ahmed 0:791a779d6220 237 * Another application is to make all functions global for use with debuggers
shoaib_ahmed 0:791a779d6220 238 * or code profilers that require it.
shoaib_ahmed 0:791a779d6220 239 */
shoaib_ahmed 0:791a779d6220 240
shoaib_ahmed 0:791a779d6220 241 /* a function called through method pointers: */
shoaib_ahmed 0:791a779d6220 242 #define METHODDEF(type) static type
shoaib_ahmed 0:791a779d6220 243 /* a function used only in its module: */
shoaib_ahmed 0:791a779d6220 244 #define LOCAL(type) static type
shoaib_ahmed 0:791a779d6220 245 /* a function referenced thru EXTERNs: */
shoaib_ahmed 0:791a779d6220 246 #define GLOBAL(type) type
shoaib_ahmed 0:791a779d6220 247 /* a reference to a GLOBAL function: */
shoaib_ahmed 0:791a779d6220 248 #define EXTERN(type) extern type
shoaib_ahmed 0:791a779d6220 249
shoaib_ahmed 0:791a779d6220 250
shoaib_ahmed 0:791a779d6220 251 /* This macro is used to declare a "method", that is, a function pointer.
shoaib_ahmed 0:791a779d6220 252 * We want to supply prototype parameters if the compiler can cope.
shoaib_ahmed 0:791a779d6220 253 * Note that the arglist parameter must be parenthesized!
shoaib_ahmed 0:791a779d6220 254 * Again, you can customize this if you need special linkage keywords.
shoaib_ahmed 0:791a779d6220 255 */
shoaib_ahmed 0:791a779d6220 256
shoaib_ahmed 0:791a779d6220 257 #ifdef HAVE_PROTOTYPES
shoaib_ahmed 0:791a779d6220 258 #define JMETHOD(type,methodname,arglist) type (*methodname) arglist
shoaib_ahmed 0:791a779d6220 259 #else
shoaib_ahmed 0:791a779d6220 260 #define JMETHOD(type,methodname,arglist) type (*methodname) ()
shoaib_ahmed 0:791a779d6220 261 #endif
shoaib_ahmed 0:791a779d6220 262
shoaib_ahmed 0:791a779d6220 263
shoaib_ahmed 0:791a779d6220 264 /* The noreturn type identifier is used to declare functions
shoaib_ahmed 0:791a779d6220 265 * which cannot return.
shoaib_ahmed 0:791a779d6220 266 * Compilers can thus create more optimized code and perform
shoaib_ahmed 0:791a779d6220 267 * better checks for warnings and errors.
shoaib_ahmed 0:791a779d6220 268 * Static analyzer tools can make improved inferences about
shoaib_ahmed 0:791a779d6220 269 * execution paths and are prevented from giving false alerts.
shoaib_ahmed 0:791a779d6220 270 *
shoaib_ahmed 0:791a779d6220 271 * Unfortunately, the proposed specifications of corresponding
shoaib_ahmed 0:791a779d6220 272 * extensions in the Dec 2011 ISO C standard revision (C11),
shoaib_ahmed 0:791a779d6220 273 * GCC, MSVC, etc. are not viable.
shoaib_ahmed 0:791a779d6220 274 * Thus we introduce a user defined type to declare noreturn
shoaib_ahmed 0:791a779d6220 275 * functions at least for clarity. A proper compiler would
shoaib_ahmed 0:791a779d6220 276 * have a suitable noreturn type to match in place of void.
shoaib_ahmed 0:791a779d6220 277 */
shoaib_ahmed 0:791a779d6220 278
shoaib_ahmed 0:791a779d6220 279 #ifndef HAVE_NORETURN_T
shoaib_ahmed 0:791a779d6220 280 typedef void noreturn_t;
shoaib_ahmed 0:791a779d6220 281 #endif
shoaib_ahmed 0:791a779d6220 282
shoaib_ahmed 0:791a779d6220 283
shoaib_ahmed 0:791a779d6220 284 /* Here is the pseudo-keyword for declaring pointers that must be "far"
shoaib_ahmed 0:791a779d6220 285 * on 80x86 machines. Most of the specialized coding for 80x86 is handled
shoaib_ahmed 0:791a779d6220 286 * by just saying "FAR *" where such a pointer is needed. In a few places
shoaib_ahmed 0:791a779d6220 287 * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol.
shoaib_ahmed 0:791a779d6220 288 */
shoaib_ahmed 0:791a779d6220 289
shoaib_ahmed 0:791a779d6220 290 #ifndef FAR
shoaib_ahmed 0:791a779d6220 291 #ifdef NEED_FAR_POINTERS
shoaib_ahmed 0:791a779d6220 292 #define FAR far
shoaib_ahmed 0:791a779d6220 293 #else
shoaib_ahmed 0:791a779d6220 294 #define FAR
shoaib_ahmed 0:791a779d6220 295 #endif
shoaib_ahmed 0:791a779d6220 296 #endif
shoaib_ahmed 0:791a779d6220 297
shoaib_ahmed 0:791a779d6220 298
shoaib_ahmed 0:791a779d6220 299 /*
shoaib_ahmed 0:791a779d6220 300 * On a few systems, type boolean and/or its values FALSE, TRUE may appear
shoaib_ahmed 0:791a779d6220 301 * in standard header files. Or you may have conflicts with application-
shoaib_ahmed 0:791a779d6220 302 * specific header files that you want to include together with these files.
shoaib_ahmed 0:791a779d6220 303 * Defining HAVE_BOOLEAN before including jpeglib.h should make it work.
shoaib_ahmed 0:791a779d6220 304 */
shoaib_ahmed 0:791a779d6220 305
shoaib_ahmed 0:791a779d6220 306 #ifndef HAVE_BOOLEAN
shoaib_ahmed 0:791a779d6220 307 #if defined FALSE || defined TRUE || defined QGLOBAL_H
shoaib_ahmed 0:791a779d6220 308 /* Qt3 defines FALSE and TRUE as "const" variables in qglobal.h */
shoaib_ahmed 0:791a779d6220 309 typedef int boolean;
shoaib_ahmed 0:791a779d6220 310 #ifndef FALSE /* in case these macros already exist */
shoaib_ahmed 0:791a779d6220 311 #define FALSE 0 /* values of boolean */
shoaib_ahmed 0:791a779d6220 312 #endif
shoaib_ahmed 0:791a779d6220 313 #ifndef TRUE
shoaib_ahmed 0:791a779d6220 314 #define TRUE 1
shoaib_ahmed 0:791a779d6220 315 #endif
shoaib_ahmed 0:791a779d6220 316 #else
shoaib_ahmed 0:791a779d6220 317 typedef enum { FALSE = 0, TRUE = 1 } boolean;
shoaib_ahmed 0:791a779d6220 318 #endif
shoaib_ahmed 0:791a779d6220 319 #endif
shoaib_ahmed 0:791a779d6220 320
shoaib_ahmed 0:791a779d6220 321
shoaib_ahmed 0:791a779d6220 322 /*
shoaib_ahmed 0:791a779d6220 323 * The remaining options affect code selection within the JPEG library,
shoaib_ahmed 0:791a779d6220 324 * but they don't need to be visible to most applications using the library.
shoaib_ahmed 0:791a779d6220 325 * To minimize application namespace pollution, the symbols won't be
shoaib_ahmed 0:791a779d6220 326 * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined.
shoaib_ahmed 0:791a779d6220 327 */
shoaib_ahmed 0:791a779d6220 328
shoaib_ahmed 0:791a779d6220 329 #ifdef JPEG_INTERNALS
shoaib_ahmed 0:791a779d6220 330 #define JPEG_INTERNAL_OPTIONS
shoaib_ahmed 0:791a779d6220 331 #endif
shoaib_ahmed 0:791a779d6220 332
shoaib_ahmed 0:791a779d6220 333 #ifdef JPEG_INTERNAL_OPTIONS
shoaib_ahmed 0:791a779d6220 334
shoaib_ahmed 0:791a779d6220 335
shoaib_ahmed 0:791a779d6220 336 /*
shoaib_ahmed 0:791a779d6220 337 * These defines indicate whether to include various optional functions.
shoaib_ahmed 0:791a779d6220 338 * Undefining some of these symbols will produce a smaller but less capable
shoaib_ahmed 0:791a779d6220 339 * library. Note that you can leave certain source files out of the
shoaib_ahmed 0:791a779d6220 340 * compilation/linking process if you've #undef'd the corresponding symbols.
shoaib_ahmed 0:791a779d6220 341 * (You may HAVE to do that if your compiler doesn't like null source files.)
shoaib_ahmed 0:791a779d6220 342 */
shoaib_ahmed 0:791a779d6220 343
shoaib_ahmed 0:791a779d6220 344 /* Capability options common to encoder and decoder: */
shoaib_ahmed 0:791a779d6220 345
shoaib_ahmed 0:791a779d6220 346 #define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */
shoaib_ahmed 0:791a779d6220 347 #define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */
shoaib_ahmed 0:791a779d6220 348 #define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */
shoaib_ahmed 0:791a779d6220 349
shoaib_ahmed 0:791a779d6220 350 /* Encoder capability options: */
shoaib_ahmed 0:791a779d6220 351
shoaib_ahmed 0:791a779d6220 352 #define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
shoaib_ahmed 0:791a779d6220 353 #define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
shoaib_ahmed 0:791a779d6220 354 #define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
shoaib_ahmed 0:791a779d6220 355 #define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/
shoaib_ahmed 0:791a779d6220 356 #define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */
shoaib_ahmed 0:791a779d6220 357 /* Note: if you selected more than 8-bit data precision, it is dangerous to
shoaib_ahmed 0:791a779d6220 358 * turn off ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only
shoaib_ahmed 0:791a779d6220 359 * good for 8-bit precision, so arithmetic coding is recommended for higher
shoaib_ahmed 0:791a779d6220 360 * precision. The Huffman encoder normally uses entropy optimization to
shoaib_ahmed 0:791a779d6220 361 * compute usable tables for higher precision. Otherwise, you'll have to
shoaib_ahmed 0:791a779d6220 362 * supply different default Huffman tables.
shoaib_ahmed 0:791a779d6220 363 * The exact same statements apply for progressive JPEG: the default tables
shoaib_ahmed 0:791a779d6220 364 * don't work for progressive mode. (This may get fixed, however.)
shoaib_ahmed 0:791a779d6220 365 */
shoaib_ahmed 0:791a779d6220 366 #define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */
shoaib_ahmed 0:791a779d6220 367
shoaib_ahmed 0:791a779d6220 368 /* Decoder capability options: */
shoaib_ahmed 0:791a779d6220 369
shoaib_ahmed 0:791a779d6220 370 #define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
shoaib_ahmed 0:791a779d6220 371 #define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
shoaib_ahmed 0:791a779d6220 372 #define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
shoaib_ahmed 0:791a779d6220 373 #define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? (Requires DCT_ISLOW)*/
shoaib_ahmed 0:791a779d6220 374 #define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */
shoaib_ahmed 0:791a779d6220 375 #define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */
shoaib_ahmed 0:791a779d6220 376 #undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */
shoaib_ahmed 0:791a779d6220 377 #define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */
shoaib_ahmed 0:791a779d6220 378 #define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */
shoaib_ahmed 0:791a779d6220 379 #define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */
shoaib_ahmed 0:791a779d6220 380
shoaib_ahmed 0:791a779d6220 381 /* more capability options later, no doubt */
shoaib_ahmed 0:791a779d6220 382
shoaib_ahmed 0:791a779d6220 383
shoaib_ahmed 0:791a779d6220 384 /*
shoaib_ahmed 0:791a779d6220 385 * Ordering of RGB data in scanlines passed to or from the application.
shoaib_ahmed 0:791a779d6220 386 * If your application wants to deal with data in the order B,G,R, just
shoaib_ahmed 0:791a779d6220 387 * change these macros. You can also deal with formats such as R,G,B,X
shoaib_ahmed 0:791a779d6220 388 * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing
shoaib_ahmed 0:791a779d6220 389 * the offsets will also change the order in which colormap data is organized.
shoaib_ahmed 0:791a779d6220 390 * RESTRICTIONS:
shoaib_ahmed 0:791a779d6220 391 * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
shoaib_ahmed 0:791a779d6220 392 * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
shoaib_ahmed 0:791a779d6220 393 * is not 3 (they don't understand about dummy color components!). So you
shoaib_ahmed 0:791a779d6220 394 * can't use color quantization if you change that value.
shoaib_ahmed 0:791a779d6220 395 */
shoaib_ahmed 0:791a779d6220 396
shoaib_ahmed 0:791a779d6220 397 #define RGB_RED 0 /* Offset of Red in an RGB scanline element */
shoaib_ahmed 0:791a779d6220 398 #define RGB_GREEN 1 /* Offset of Green */
shoaib_ahmed 0:791a779d6220 399 #define RGB_BLUE 2 /* Offset of Blue */
shoaib_ahmed 0:791a779d6220 400 #define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */
shoaib_ahmed 0:791a779d6220 401
shoaib_ahmed 0:791a779d6220 402
shoaib_ahmed 0:791a779d6220 403 /* Definitions for speed-related optimizations. */
shoaib_ahmed 0:791a779d6220 404
shoaib_ahmed 0:791a779d6220 405
shoaib_ahmed 0:791a779d6220 406 /* If your compiler supports inline functions, define INLINE
shoaib_ahmed 0:791a779d6220 407 * as the inline keyword; otherwise define it as empty.
shoaib_ahmed 0:791a779d6220 408 */
shoaib_ahmed 0:791a779d6220 409
shoaib_ahmed 0:791a779d6220 410 #ifndef INLINE
shoaib_ahmed 0:791a779d6220 411 #ifdef __GNUC__ /* for instance, GNU C knows about inline */
shoaib_ahmed 0:791a779d6220 412 #define INLINE __inline__
shoaib_ahmed 0:791a779d6220 413 #endif
shoaib_ahmed 0:791a779d6220 414 #ifndef INLINE
shoaib_ahmed 0:791a779d6220 415 #define INLINE /* default is to define it as empty */
shoaib_ahmed 0:791a779d6220 416 #endif
shoaib_ahmed 0:791a779d6220 417 #endif
shoaib_ahmed 0:791a779d6220 418
shoaib_ahmed 0:791a779d6220 419
shoaib_ahmed 0:791a779d6220 420 /* On some machines (notably 68000 series) "int" is 32 bits, but multiplying
shoaib_ahmed 0:791a779d6220 421 * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER
shoaib_ahmed 0:791a779d6220 422 * as short on such a machine. MULTIPLIER must be at least 16 bits wide.
shoaib_ahmed 0:791a779d6220 423 */
shoaib_ahmed 0:791a779d6220 424
shoaib_ahmed 0:791a779d6220 425 #ifndef MULTIPLIER
shoaib_ahmed 0:791a779d6220 426 #define MULTIPLIER int /* type for fastest integer multiply */
shoaib_ahmed 0:791a779d6220 427 #endif
shoaib_ahmed 0:791a779d6220 428
shoaib_ahmed 0:791a779d6220 429
shoaib_ahmed 0:791a779d6220 430 /* FAST_FLOAT should be either float or double, whichever is done faster
shoaib_ahmed 0:791a779d6220 431 * by your compiler. (Note that this type is only used in the floating point
shoaib_ahmed 0:791a779d6220 432 * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.)
shoaib_ahmed 0:791a779d6220 433 * Typically, float is faster in ANSI C compilers, while double is faster in
shoaib_ahmed 0:791a779d6220 434 * pre-ANSI compilers (because they insist on converting to double anyway).
shoaib_ahmed 0:791a779d6220 435 * The code below therefore chooses float if we have ANSI-style prototypes.
shoaib_ahmed 0:791a779d6220 436 */
shoaib_ahmed 0:791a779d6220 437
shoaib_ahmed 0:791a779d6220 438 #ifndef FAST_FLOAT
shoaib_ahmed 0:791a779d6220 439 #ifdef HAVE_PROTOTYPES
shoaib_ahmed 0:791a779d6220 440 #define FAST_FLOAT float
shoaib_ahmed 0:791a779d6220 441 #else
shoaib_ahmed 0:791a779d6220 442 #define FAST_FLOAT double
shoaib_ahmed 0:791a779d6220 443 #endif
shoaib_ahmed 0:791a779d6220 444 #endif
shoaib_ahmed 0:791a779d6220 445
shoaib_ahmed 0:791a779d6220 446 #endif /* JPEG_INTERNAL_OPTIONS */