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authorDavid Walter Seikel2013-01-13 18:54:10 +1000
committerDavid Walter Seikel2013-01-13 18:54:10 +1000
commit959831f4ef5a3e797f576c3de08cd65032c997ad (patch)
treee7351908be5995f0b325b2ebeaa02d5a34b82583 /libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jmorecfg.h
parentAdd info about changes to Irrlicht. (diff)
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Remove damned ancient DOS line endings from Irrlicht. Hopefully I did not go overboard.
Diffstat (limited to 'libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jmorecfg.h')
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jmorecfg.h738
1 files changed, 369 insertions, 369 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jmorecfg.h b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jmorecfg.h
index 0a44db4..0574798 100644
--- a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jmorecfg.h
+++ b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jmorecfg.h
@@ -1,369 +1,369 @@
1/* 1/*
2 * jmorecfg.h 2 * jmorecfg.h
3 * 3 *
4 * Copyright (C) 1991-1997, Thomas G. Lane. 4 * Copyright (C) 1991-1997, Thomas G. Lane.
5 * Modified 1997-2011 by Guido Vollbeding. 5 * Modified 1997-2011 by Guido Vollbeding.
6 * This file is part of the Independent JPEG Group's software. 6 * This file is part of the Independent JPEG Group's software.
7 * For conditions of distribution and use, see the accompanying README file. 7 * For conditions of distribution and use, see the accompanying README file.
8 * 8 *
9 * This file contains additional configuration options that customize the 9 * This file contains additional configuration options that customize the
10 * JPEG software for special applications or support machine-dependent 10 * JPEG software for special applications or support machine-dependent
11 * optimizations. Most users will not need to touch this file. 11 * optimizations. Most users will not need to touch this file.
12 */ 12 */
13 13
14 14
15/* 15/*
16 * Define BITS_IN_JSAMPLE as either 16 * Define BITS_IN_JSAMPLE as either
17 * 8 for 8-bit sample values (the usual setting) 17 * 8 for 8-bit sample values (the usual setting)
18 * 12 for 12-bit sample values 18 * 12 for 12-bit sample values
19 * Only 8 and 12 are legal data precisions for lossy JPEG according to the 19 * Only 8 and 12 are legal data precisions for lossy JPEG according to the
20 * JPEG standard, and the IJG code does not support anything else! 20 * JPEG standard, and the IJG code does not support anything else!
21 * We do not support run-time selection of data precision, sorry. 21 * We do not support run-time selection of data precision, sorry.
22 */ 22 */
23 23
24#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */ 24#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */
25 25
26 26
27/* 27/*
28 * Maximum number of components (color channels) allowed in JPEG image. 28 * Maximum number of components (color channels) allowed in JPEG image.
29 * To meet the letter of the JPEG spec, set this to 255. However, darn 29 * To meet the letter of the JPEG spec, set this to 255. However, darn
30 * few applications need more than 4 channels (maybe 5 for CMYK + alpha 30 * few applications need more than 4 channels (maybe 5 for CMYK + alpha
31 * mask). We recommend 10 as a reasonable compromise; use 4 if you are 31 * mask). We recommend 10 as a reasonable compromise; use 4 if you are
32 * really short on memory. (Each allowed component costs a hundred or so 32 * really short on memory. (Each allowed component costs a hundred or so
33 * bytes of storage, whether actually used in an image or not.) 33 * bytes of storage, whether actually used in an image or not.)
34 */ 34 */
35 35
36#define MAX_COMPONENTS 10 /* maximum number of image components */ 36#define MAX_COMPONENTS 10 /* maximum number of image components */
37 37
38 38
39/* 39/*
40 * Basic data types. 40 * Basic data types.
41 * You may need to change these if you have a machine with unusual data 41 * You may need to change these if you have a machine with unusual data
42 * type sizes; for example, "char" not 8 bits, "short" not 16 bits, 42 * type sizes; for example, "char" not 8 bits, "short" not 16 bits,
43 * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits, 43 * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits,
44 * but it had better be at least 16. 44 * but it had better be at least 16.
45 */ 45 */
46 46
47/* Representation of a single sample (pixel element value). 47/* Representation of a single sample (pixel element value).
48 * We frequently allocate large arrays of these, so it's important to keep 48 * We frequently allocate large arrays of these, so it's important to keep
49 * them small. But if you have memory to burn and access to char or short 49 * them small. But if you have memory to burn and access to char or short
50 * arrays is very slow on your hardware, you might want to change these. 50 * arrays is very slow on your hardware, you might want to change these.
51 */ 51 */
52 52
53#if BITS_IN_JSAMPLE == 8 53#if BITS_IN_JSAMPLE == 8
54/* JSAMPLE should be the smallest type that will hold the values 0..255. 54/* JSAMPLE should be the smallest type that will hold the values 0..255.
55 * You can use a signed char by having GETJSAMPLE mask it with 0xFF. 55 * You can use a signed char by having GETJSAMPLE mask it with 0xFF.
56 */ 56 */
57 57
58#ifdef HAVE_UNSIGNED_CHAR 58#ifdef HAVE_UNSIGNED_CHAR
59 59
60typedef unsigned char JSAMPLE; 60typedef unsigned char JSAMPLE;
61#define GETJSAMPLE(value) ((int) (value)) 61#define GETJSAMPLE(value) ((int) (value))
62 62
63#else /* not HAVE_UNSIGNED_CHAR */ 63#else /* not HAVE_UNSIGNED_CHAR */
64 64
65typedef char JSAMPLE; 65typedef char JSAMPLE;
66#ifdef CHAR_IS_UNSIGNED 66#ifdef CHAR_IS_UNSIGNED
67#define GETJSAMPLE(value) ((int) (value)) 67#define GETJSAMPLE(value) ((int) (value))
68#else 68#else
69#define GETJSAMPLE(value) ((int) (value) & 0xFF) 69#define GETJSAMPLE(value) ((int) (value) & 0xFF)
70#endif /* CHAR_IS_UNSIGNED */ 70#endif /* CHAR_IS_UNSIGNED */
71 71
72#endif /* HAVE_UNSIGNED_CHAR */ 72#endif /* HAVE_UNSIGNED_CHAR */
73 73
74#define MAXJSAMPLE 255 74#define MAXJSAMPLE 255
75#define CENTERJSAMPLE 128 75#define CENTERJSAMPLE 128
76 76
77#endif /* BITS_IN_JSAMPLE == 8 */ 77#endif /* BITS_IN_JSAMPLE == 8 */
78 78
79 79
80#if BITS_IN_JSAMPLE == 12 80#if BITS_IN_JSAMPLE == 12
81/* JSAMPLE should be the smallest type that will hold the values 0..4095. 81/* JSAMPLE should be the smallest type that will hold the values 0..4095.
82 * On nearly all machines "short" will do nicely. 82 * On nearly all machines "short" will do nicely.
83 */ 83 */
84 84
85typedef short JSAMPLE; 85typedef short JSAMPLE;
86#define GETJSAMPLE(value) ((int) (value)) 86#define GETJSAMPLE(value) ((int) (value))
87 87
88#define MAXJSAMPLE 4095 88#define MAXJSAMPLE 4095
89#define CENTERJSAMPLE 2048 89#define CENTERJSAMPLE 2048
90 90
91#endif /* BITS_IN_JSAMPLE == 12 */ 91#endif /* BITS_IN_JSAMPLE == 12 */
92 92
93 93
94/* Representation of a DCT frequency coefficient. 94/* Representation of a DCT frequency coefficient.
95 * This should be a signed value of at least 16 bits; "short" is usually OK. 95 * This should be a signed value of at least 16 bits; "short" is usually OK.
96 * Again, we allocate large arrays of these, but you can change to int 96 * Again, we allocate large arrays of these, but you can change to int
97 * if you have memory to burn and "short" is really slow. 97 * if you have memory to burn and "short" is really slow.
98 */ 98 */
99 99
100typedef short JCOEF; 100typedef short JCOEF;
101 101
102 102
103/* Compressed datastreams are represented as arrays of JOCTET. 103/* Compressed datastreams are represented as arrays of JOCTET.
104 * These must be EXACTLY 8 bits wide, at least once they are written to 104 * These must be EXACTLY 8 bits wide, at least once they are written to
105 * external storage. Note that when using the stdio data source/destination 105 * external storage. Note that when using the stdio data source/destination
106 * managers, this is also the data type passed to fread/fwrite. 106 * managers, this is also the data type passed to fread/fwrite.
107 */ 107 */
108 108
109#ifdef HAVE_UNSIGNED_CHAR 109#ifdef HAVE_UNSIGNED_CHAR
110 110
111typedef unsigned char JOCTET; 111typedef unsigned char JOCTET;
112#define GETJOCTET(value) (value) 112#define GETJOCTET(value) (value)
113 113
114#else /* not HAVE_UNSIGNED_CHAR */ 114#else /* not HAVE_UNSIGNED_CHAR */
115 115
116typedef char JOCTET; 116typedef char JOCTET;
117#ifdef CHAR_IS_UNSIGNED 117#ifdef CHAR_IS_UNSIGNED
118#define GETJOCTET(value) (value) 118#define GETJOCTET(value) (value)
119#else 119#else
120#define GETJOCTET(value) ((value) & 0xFF) 120#define GETJOCTET(value) ((value) & 0xFF)
121#endif /* CHAR_IS_UNSIGNED */ 121#endif /* CHAR_IS_UNSIGNED */
122 122
123#endif /* HAVE_UNSIGNED_CHAR */ 123#endif /* HAVE_UNSIGNED_CHAR */
124 124
125 125
126/* These typedefs are used for various table entries and so forth. 126/* These typedefs are used for various table entries and so forth.
127 * They must be at least as wide as specified; but making them too big 127 * They must be at least as wide as specified; but making them too big
128 * won't cost a huge amount of memory, so we don't provide special 128 * won't cost a huge amount of memory, so we don't provide special
129 * extraction code like we did for JSAMPLE. (In other words, these 129 * extraction code like we did for JSAMPLE. (In other words, these
130 * typedefs live at a different point on the speed/space tradeoff curve.) 130 * typedefs live at a different point on the speed/space tradeoff curve.)
131 */ 131 */
132 132
133/* UINT8 must hold at least the values 0..255. */ 133/* UINT8 must hold at least the values 0..255. */
134 134
135#ifdef HAVE_UNSIGNED_CHAR 135#ifdef HAVE_UNSIGNED_CHAR
136typedef unsigned char UINT8; 136typedef unsigned char UINT8;
137#else /* not HAVE_UNSIGNED_CHAR */ 137#else /* not HAVE_UNSIGNED_CHAR */
138#ifdef CHAR_IS_UNSIGNED 138#ifdef CHAR_IS_UNSIGNED
139typedef char UINT8; 139typedef char UINT8;
140#else /* not CHAR_IS_UNSIGNED */ 140#else /* not CHAR_IS_UNSIGNED */
141typedef short UINT8; 141typedef short UINT8;
142#endif /* CHAR_IS_UNSIGNED */ 142#endif /* CHAR_IS_UNSIGNED */
143#endif /* HAVE_UNSIGNED_CHAR */ 143#endif /* HAVE_UNSIGNED_CHAR */
144 144
145/* UINT16 must hold at least the values 0..65535. */ 145/* UINT16 must hold at least the values 0..65535. */
146 146
147#ifdef HAVE_UNSIGNED_SHORT 147#ifdef HAVE_UNSIGNED_SHORT
148typedef unsigned short UINT16; 148typedef unsigned short UINT16;
149#else /* not HAVE_UNSIGNED_SHORT */ 149#else /* not HAVE_UNSIGNED_SHORT */
150typedef unsigned int UINT16; 150typedef unsigned int UINT16;
151#endif /* HAVE_UNSIGNED_SHORT */ 151#endif /* HAVE_UNSIGNED_SHORT */
152 152
153/* INT16 must hold at least the values -32768..32767. */ 153/* INT16 must hold at least the values -32768..32767. */
154 154
155#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */ 155#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */
156typedef short INT16; 156typedef short INT16;
157#endif 157#endif
158 158
159/* INT32 must hold at least signed 32-bit values. */ 159/* INT32 must hold at least signed 32-bit values. */
160 160
161#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */ 161#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */
162#ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */ 162#ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */
163#ifndef _BASETSD_H /* MinGW is slightly different */ 163#ifndef _BASETSD_H /* MinGW is slightly different */
164#ifndef QGLOBAL_H /* Qt defines it in qglobal.h */ 164#ifndef QGLOBAL_H /* Qt defines it in qglobal.h */
165typedef int INT32; 165typedef int INT32;
166#endif 166#endif
167#endif 167#endif
168#endif 168#endif
169#endif 169#endif
170 170
171/* Datatype used for image dimensions. The JPEG standard only supports 171/* Datatype used for image dimensions. The JPEG standard only supports
172 * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore 172 * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore
173 * "unsigned int" is sufficient on all machines. However, if you need to 173 * "unsigned int" is sufficient on all machines. However, if you need to
174 * handle larger images and you don't mind deviating from the spec, you 174 * handle larger images and you don't mind deviating from the spec, you
175 * can change this datatype. 175 * can change this datatype.
176 */ 176 */
177 177
178typedef unsigned int JDIMENSION; 178typedef unsigned int JDIMENSION;
179 179
180#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */ 180#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */
181 181
182 182
183/* These macros are used in all function definitions and extern declarations. 183/* These macros are used in all function definitions and extern declarations.
184 * You could modify them if you need to change function linkage conventions; 184 * You could modify them if you need to change function linkage conventions;
185 * in particular, you'll need to do that to make the library a Windows DLL. 185 * in particular, you'll need to do that to make the library a Windows DLL.
186 * Another application is to make all functions global for use with debuggers 186 * Another application is to make all functions global for use with debuggers
187 * or code profilers that require it. 187 * or code profilers that require it.
188 */ 188 */
189 189
190/* a function called through method pointers: */ 190/* a function called through method pointers: */
191#define METHODDEF(type) static type 191#define METHODDEF(type) static type
192/* a function used only in its module: */ 192/* a function used only in its module: */
193#define LOCAL(type) static type 193#define LOCAL(type) static type
194/* a function referenced thru EXTERNs: */ 194/* a function referenced thru EXTERNs: */
195#define GLOBAL(type) type 195#define GLOBAL(type) type
196/* a reference to a GLOBAL function: */ 196/* a reference to a GLOBAL function: */
197#define EXTERN(type) extern type 197#define EXTERN(type) extern type
198 198
199 199
200/* This macro is used to declare a "method", that is, a function pointer. 200/* This macro is used to declare a "method", that is, a function pointer.
201 * We want to supply prototype parameters if the compiler can cope. 201 * We want to supply prototype parameters if the compiler can cope.
202 * Note that the arglist parameter must be parenthesized! 202 * Note that the arglist parameter must be parenthesized!
203 * Again, you can customize this if you need special linkage keywords. 203 * Again, you can customize this if you need special linkage keywords.
204 */ 204 */
205 205
206#ifdef HAVE_PROTOTYPES 206#ifdef HAVE_PROTOTYPES
207#define JMETHOD(type,methodname,arglist) type (*methodname) arglist 207#define JMETHOD(type,methodname,arglist) type (*methodname) arglist
208#else 208#else
209#define JMETHOD(type,methodname,arglist) type (*methodname) () 209#define JMETHOD(type,methodname,arglist) type (*methodname) ()
210#endif 210#endif
211 211
212 212
213/* Here is the pseudo-keyword for declaring pointers that must be "far" 213/* Here is the pseudo-keyword for declaring pointers that must be "far"
214 * on 80x86 machines. Most of the specialized coding for 80x86 is handled 214 * on 80x86 machines. Most of the specialized coding for 80x86 is handled
215 * by just saying "FAR *" where such a pointer is needed. In a few places 215 * by just saying "FAR *" where such a pointer is needed. In a few places
216 * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol. 216 * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol.
217 */ 217 */
218 218
219#ifndef FAR 219#ifndef FAR
220#ifdef NEED_FAR_POINTERS 220#ifdef NEED_FAR_POINTERS
221#define FAR far 221#define FAR far
222#else 222#else
223#define FAR 223#define FAR
224#endif 224#endif
225#endif 225#endif
226 226
227 227
228/* 228/*
229 * On a few systems, type boolean and/or its values FALSE, TRUE may appear 229 * On a few systems, type boolean and/or its values FALSE, TRUE may appear
230 * in standard header files. Or you may have conflicts with application- 230 * in standard header files. Or you may have conflicts with application-
231 * specific header files that you want to include together with these files. 231 * specific header files that you want to include together with these files.
232 * Defining HAVE_BOOLEAN before including jpeglib.h should make it work. 232 * Defining HAVE_BOOLEAN before including jpeglib.h should make it work.
233 */ 233 */
234 234
235#ifndef HAVE_BOOLEAN 235#ifndef HAVE_BOOLEAN
236typedef int boolean; 236typedef int boolean;
237#endif 237#endif
238#ifndef FALSE /* in case these macros already exist */ 238#ifndef FALSE /* in case these macros already exist */
239#define FALSE 0 /* values of boolean */ 239#define FALSE 0 /* values of boolean */
240#endif 240#endif
241#ifndef TRUE 241#ifndef TRUE
242#define TRUE 1 242#define TRUE 1
243#endif 243#endif
244 244
245 245
246/* 246/*
247 * The remaining options affect code selection within the JPEG library, 247 * The remaining options affect code selection within the JPEG library,
248 * but they don't need to be visible to most applications using the library. 248 * but they don't need to be visible to most applications using the library.
249 * To minimize application namespace pollution, the symbols won't be 249 * To minimize application namespace pollution, the symbols won't be
250 * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined. 250 * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined.
251 */ 251 */
252 252
253#ifdef JPEG_INTERNALS 253#ifdef JPEG_INTERNALS
254#define JPEG_INTERNAL_OPTIONS 254#define JPEG_INTERNAL_OPTIONS
255#endif 255#endif
256 256
257#ifdef JPEG_INTERNAL_OPTIONS 257#ifdef JPEG_INTERNAL_OPTIONS
258 258
259 259
260/* 260/*
261 * These defines indicate whether to include various optional functions. 261 * These defines indicate whether to include various optional functions.
262 * Undefining some of these symbols will produce a smaller but less capable 262 * Undefining some of these symbols will produce a smaller but less capable
263 * library. Note that you can leave certain source files out of the 263 * library. Note that you can leave certain source files out of the
264 * compilation/linking process if you've #undef'd the corresponding symbols. 264 * compilation/linking process if you've #undef'd the corresponding symbols.
265 * (You may HAVE to do that if your compiler doesn't like null source files.) 265 * (You may HAVE to do that if your compiler doesn't like null source files.)
266 */ 266 */
267 267
268/* Capability options common to encoder and decoder: */ 268/* Capability options common to encoder and decoder: */
269 269
270#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ 270#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */
271#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ 271#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */
272#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ 272#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */
273 273
274/* Encoder capability options: */ 274/* Encoder capability options: */
275 275
276#define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ 276#define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
277#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ 277#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
278#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ 278#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
279#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/ 279#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/
280#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ 280#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */
281/* Note: if you selected 12-bit data precision, it is dangerous to turn off 281/* Note: if you selected 12-bit data precision, it is dangerous to turn off
282 * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit 282 * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit
283 * precision, so jchuff.c normally uses entropy optimization to compute 283 * precision, so jchuff.c normally uses entropy optimization to compute
284 * usable tables for higher precision. If you don't want to do optimization, 284 * usable tables for higher precision. If you don't want to do optimization,
285 * you'll have to supply different default Huffman tables. 285 * you'll have to supply different default Huffman tables.
286 * The exact same statements apply for progressive JPEG: the default tables 286 * The exact same statements apply for progressive JPEG: the default tables
287 * don't work for progressive mode. (This may get fixed, however.) 287 * don't work for progressive mode. (This may get fixed, however.)
288 */ 288 */
289#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ 289#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */
290 290
291/* Decoder capability options: */ 291/* Decoder capability options: */
292 292
293#define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ 293#define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
294#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ 294#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
295#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ 295#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
296#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */ 296#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */
297#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */ 297#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */
298#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ 298#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */
299#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */ 299#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */
300#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */ 300#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */
301#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */ 301#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */
302#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */ 302#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */
303 303
304/* more capability options later, no doubt */ 304/* more capability options later, no doubt */
305 305
306 306
307/* 307/*
308 * Ordering of RGB data in scanlines passed to or from the application. 308 * Ordering of RGB data in scanlines passed to or from the application.
309 * If your application wants to deal with data in the order B,G,R, just 309 * If your application wants to deal with data in the order B,G,R, just
310 * change these macros. You can also deal with formats such as R,G,B,X 310 * change these macros. You can also deal with formats such as R,G,B,X
311 * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing 311 * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing
312 * the offsets will also change the order in which colormap data is organized. 312 * the offsets will also change the order in which colormap data is organized.
313 * RESTRICTIONS: 313 * RESTRICTIONS:
314 * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats. 314 * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
315 * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE 315 * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
316 * is not 3 (they don't understand about dummy color components!). So you 316 * is not 3 (they don't understand about dummy color components!). So you
317 * can't use color quantization if you change that value. 317 * can't use color quantization if you change that value.
318 */ 318 */
319 319
320#define RGB_RED 0 /* Offset of Red in an RGB scanline element */ 320#define RGB_RED 0 /* Offset of Red in an RGB scanline element */
321#define RGB_GREEN 1 /* Offset of Green */ 321#define RGB_GREEN 1 /* Offset of Green */
322#define RGB_BLUE 2 /* Offset of Blue */ 322#define RGB_BLUE 2 /* Offset of Blue */
323#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */ 323#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */
324 324
325 325
326/* Definitions for speed-related optimizations. */ 326/* Definitions for speed-related optimizations. */
327 327
328 328
329/* If your compiler supports inline functions, define INLINE 329/* If your compiler supports inline functions, define INLINE
330 * as the inline keyword; otherwise define it as empty. 330 * as the inline keyword; otherwise define it as empty.
331 */ 331 */
332 332
333#ifndef INLINE 333#ifndef INLINE
334#ifdef __GNUC__ /* for instance, GNU C knows about inline */ 334#ifdef __GNUC__ /* for instance, GNU C knows about inline */
335#define INLINE __inline__ 335#define INLINE __inline__
336#endif 336#endif
337#ifndef INLINE 337#ifndef INLINE
338#define INLINE /* default is to define it as empty */ 338#define INLINE /* default is to define it as empty */
339#endif 339#endif
340#endif 340#endif
341 341
342 342
343/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying 343/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying
344 * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER 344 * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER
345 * as short on such a machine. MULTIPLIER must be at least 16 bits wide. 345 * as short on such a machine. MULTIPLIER must be at least 16 bits wide.
346 */ 346 */
347 347
348#ifndef MULTIPLIER 348#ifndef MULTIPLIER
349#define MULTIPLIER int /* type for fastest integer multiply */ 349#define MULTIPLIER int /* type for fastest integer multiply */
350#endif 350#endif
351 351
352 352
353/* FAST_FLOAT should be either float or double, whichever is done faster 353/* FAST_FLOAT should be either float or double, whichever is done faster
354 * by your compiler. (Note that this type is only used in the floating point 354 * by your compiler. (Note that this type is only used in the floating point
355 * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.) 355 * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.)
356 * Typically, float is faster in ANSI C compilers, while double is faster in 356 * Typically, float is faster in ANSI C compilers, while double is faster in
357 * pre-ANSI compilers (because they insist on converting to double anyway). 357 * pre-ANSI compilers (because they insist on converting to double anyway).
358 * The code below therefore chooses float if we have ANSI-style prototypes. 358 * The code below therefore chooses float if we have ANSI-style prototypes.
359 */ 359 */
360 360
361#ifndef FAST_FLOAT 361#ifndef FAST_FLOAT
362#ifdef HAVE_PROTOTYPES 362#ifdef HAVE_PROTOTYPES
363#define FAST_FLOAT float 363#define FAST_FLOAT float
364#else 364#else
365#define FAST_FLOAT double 365#define FAST_FLOAT double
366#endif 366#endif
367#endif 367#endif
368 368
369#endif /* JPEG_INTERNAL_OPTIONS */ 369#endif /* JPEG_INTERNAL_OPTIONS */