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1.1 root 1: /*
2: SDL - Simple DirectMedia Layer
3: Copyright (C) 1997-2006 Sam Lantinga
4:
5: This library is free software; you can redistribute it and/or
6: modify it under the terms of the GNU Lesser General Public
7: License as published by the Free Software Foundation; either
8: version 2.1 of the License, or (at your option) any later version.
9:
10: This library is distributed in the hope that it will be useful,
11: but WITHOUT ANY WARRANTY; without even the implied warranty of
12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: Lesser General Public License for more details.
14:
15: You should have received a copy of the GNU Lesser General Public
16: License along with this library; if not, write to the Free Software
17: Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18:
19: Sam Lantinga
20: [email protected]
21: */
22:
23: /* This is a general header that includes C language support */
24:
25: #ifndef _SDL_stdinc_h
26: #define _SDL_stdinc_h
27:
28: #include "SDL_config.h"
29:
30:
31: #ifdef HAVE_SYS_TYPES_H
32: #include <sys/types.h>
33: #endif
34: #ifdef HAVE_STDIO_H
35: #include <stdio.h>
36: #endif
37: #if defined(STDC_HEADERS)
38: # include <stdlib.h>
39: # include <stddef.h>
40: # include <stdarg.h>
41: #else
42: # if defined(HAVE_STDLIB_H)
43: # include <stdlib.h>
44: # elif defined(HAVE_MALLOC_H)
45: # include <malloc.h>
46: # endif
47: # if defined(HAVE_STDDEF_H)
48: # include <stddef.h>
49: # endif
50: # if defined(HAVE_STDARG_H)
51: # include <stdarg.h>
52: # endif
53: #endif
54: #ifdef HAVE_STRING_H
55: # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
56: # include <memory.h>
57: # endif
58: # include <string.h>
59: #endif
60: #ifdef HAVE_STRINGS_H
61: # include <strings.h>
62: #endif
63: #if defined(HAVE_INTTYPES_H)
64: # include <inttypes.h>
65: #elif defined(HAVE_STDINT_H)
66: # include <stdint.h>
67: #endif
68: #ifdef HAVE_CTYPE_H
69: # include <ctype.h>
70: #endif
71: #ifdef HAVE_ICONV_H
72: # include <iconv.h>
73: #endif
74:
75: /* The number of elements in an array */
76: #define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
77: #define SDL_TABLESIZE(table) SDL_arraysize(table)
78:
79: /* Basic data types */
80: typedef enum SDL_bool {
81: SDL_FALSE = 0,
82: SDL_TRUE = 1
83: } SDL_bool;
84:
85: typedef int8_t Sint8;
86: typedef uint8_t Uint8;
87: typedef int16_t Sint16;
88: typedef uint16_t Uint16;
89: typedef int32_t Sint32;
90: typedef uint32_t Uint32;
91:
92: #ifdef SDL_HAS_64BIT_TYPE
93: typedef int64_t Sint64;
94: #ifndef SYMBIAN32_GCCE
95: typedef uint64_t Uint64;
96: #endif
97: #else
98: /* This is really just a hack to prevent the compiler from complaining */
99: typedef struct {
100: Uint32 hi;
101: Uint32 lo;
102: } Uint64, Sint64;
103: #endif
104:
105: /* Make sure the types really have the right sizes */
106: #define SDL_COMPILE_TIME_ASSERT(name, x) \
107: typedef int SDL_dummy_ ## name[(x) * 2 - 1]
108:
109: SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
110: SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
111: SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
112: SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
113: SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
114: SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
115: SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
116: SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
117:
118: /* Check to make sure enums are the size of ints, for structure packing.
119: For both Watcom C/C++ and Borland C/C++ the compiler option that makes
120: enums having the size of an int must be enabled.
121: This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
122: */
123: /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
124: #ifdef __MWERKS__
125: #pragma enumsalwaysint on
126: #endif
127:
128: typedef enum {
129: DUMMY_ENUM_VALUE
130: } SDL_DUMMY_ENUM;
131:
132: #ifndef __NDS__
133: SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
134: #endif
135:
136:
137: #include "begin_code.h"
138: /* Set up for C function definitions, even when using C++ */
139: #ifdef __cplusplus
140: extern "C" {
141: #endif
142:
143: #ifdef HAVE_MALLOC
144: #define SDL_malloc malloc
145: #else
146: extern DECLSPEC void * SDLCALL SDL_malloc(size_t size);
147: #endif
148:
149: #ifdef HAVE_CALLOC
150: #define SDL_calloc calloc
151: #else
152: extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size);
153: #endif
154:
155: #ifdef HAVE_REALLOC
156: #define SDL_realloc realloc
157: #else
158: extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size);
159: #endif
160:
161: #ifdef HAVE_FREE
162: #define SDL_free free
163: #else
164: extern DECLSPEC void SDLCALL SDL_free(void *mem);
165: #endif
166:
167: #if defined(HAVE_ALLOCA) && !defined(alloca)
168: # if defined(HAVE_ALLOCA_H)
169: # include <alloca.h>
170: # elif defined(__GNUC__)
171: # define alloca __builtin_alloca
172: # elif defined(_MSC_VER)
173: # include <malloc.h>
174: # define alloca _alloca
175: # elif defined(__WATCOMC__)
176: # include <malloc.h>
177: # elif defined(__BORLANDC__)
178: # include <malloc.h>
179: # elif defined(__DMC__)
180: # include <stdlib.h>
181: # elif defined(__AIX__)
182: #pragma alloca
183: # elif defined(__MRC__)
184: void *alloca (unsigned);
185: # else
186: char *alloca ();
187: # endif
188: #endif
189: #ifdef HAVE_ALLOCA
190: #define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
191: #define SDL_stack_free(data)
192: #else
193: #define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
194: #define SDL_stack_free(data) SDL_free(data)
195: #endif
196:
197: #ifdef HAVE_GETENV
198: #define SDL_getenv getenv
199: #else
200: extern DECLSPEC char * SDLCALL SDL_getenv(const char *name);
201: #endif
202:
203: #ifdef HAVE_PUTENV
204: #define SDL_putenv putenv
205: #else
206: extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
207: #endif
208:
209: #ifdef HAVE_QSORT
210: #define SDL_qsort qsort
211: #else
212: extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
213: int (*compare)(const void *, const void *));
214: #endif
215:
216: #ifdef HAVE_ABS
217: #define SDL_abs abs
218: #else
219: #define SDL_abs(X) ((X) < 0 ? -(X) : (X))
220: #endif
221:
222: #define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
223: #define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
224:
225: #ifdef HAVE_CTYPE_H
226: #define SDL_isdigit(X) isdigit(X)
227: #define SDL_isspace(X) isspace(X)
228: #define SDL_toupper(X) toupper(X)
229: #define SDL_tolower(X) tolower(X)
230: #else
231: #define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9'))
232: #define SDL_isspace(X) (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
233: #define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
234: #define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
235: #endif
236:
237: #ifdef HAVE_MEMSET
238: #define SDL_memset memset
239: #else
240: extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
241: #endif
242:
243: #if defined(__GNUC__) && defined(i386)
244: #define SDL_memset4(dst, val, len) \
245: do { \
246: int u0, u1, u2; \
247: __asm__ __volatile__ ( \
248: "cld\n\t" \
249: "rep ; stosl\n\t" \
250: : "=&D" (u0), "=&a" (u1), "=&c" (u2) \
251: : "0" (dst), "1" (val), "2" ((Uint32)(len)) \
252: : "memory" ); \
253: } while(0)
254: #endif
255: #ifndef SDL_memset4
256: #define SDL_memset4(dst, val, len) \
257: do { \
258: unsigned _count = (len); \
259: unsigned _n = (_count + 3) / 4; \
260: Uint32 *_p = (Uint32 *)(dst); \
261: Uint32 _val = (val); \
262: switch (_count % 4) { \
263: case 0: do { *_p++ = _val; \
264: case 3: *_p++ = _val; \
265: case 2: *_p++ = _val; \
266: case 1: *_p++ = _val; \
267: } while ( --_n ); \
268: } \
269: } while(0)
270: #endif
271:
272: /* We can count on memcpy existing on Mac OS X and being well-tuned. */
273: #if defined(__MACH__) && defined(__APPLE__)
274: #define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
275: #elif defined(__GNUC__) && defined(i386)
276: #define SDL_memcpy(dst, src, len) \
277: do { \
278: int u0, u1, u2; \
279: __asm__ __volatile__ ( \
280: "cld\n\t" \
281: "rep ; movsl\n\t" \
282: "testb $2,%b4\n\t" \
283: "je 1f\n\t" \
284: "movsw\n" \
285: "1:\ttestb $1,%b4\n\t" \
286: "je 2f\n\t" \
287: "movsb\n" \
288: "2:" \
289: : "=&c" (u0), "=&D" (u1), "=&S" (u2) \
290: : "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
291: : "memory" ); \
292: } while(0)
293: #endif
294: #ifndef SDL_memcpy
295: #ifdef HAVE_MEMCPY
296: #define SDL_memcpy memcpy
297: #elif defined(HAVE_BCOPY)
298: #define SDL_memcpy(d, s, n) bcopy((s), (d), (n))
299: #else
300: extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
301: #endif
302: #endif
303:
304: /* We can count on memcpy existing on Mac OS X and being well-tuned. */
305: #if defined(__MACH__) && defined(__APPLE__)
306: #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
307: #elif defined(__GNUC__) && defined(i386)
308: #define SDL_memcpy4(dst, src, len) \
309: do { \
310: int ecx, edi, esi; \
311: __asm__ __volatile__ ( \
312: "cld\n\t" \
313: "rep ; movsl" \
314: : "=&c" (ecx), "=&D" (edi), "=&S" (esi) \
315: : "0" ((unsigned)(len)), "1" (dst), "2" (src) \
316: : "memory" ); \
317: } while(0)
318: #endif
319: #ifndef SDL_memcpy4
320: #define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2)
321: #endif
322:
323: #if defined(__GNUC__) && defined(i386)
324: #define SDL_revcpy(dst, src, len) \
325: do { \
326: int u0, u1, u2; \
327: char *dstp = (char *)(dst); \
328: char *srcp = (char *)(src); \
329: int n = (len); \
330: if ( n >= 4 ) { \
331: __asm__ __volatile__ ( \
332: "std\n\t" \
333: "rep ; movsl\n\t" \
334: : "=&c" (u0), "=&D" (u1), "=&S" (u2) \
335: : "0" (n >> 2), \
336: "1" (dstp+(n-4)), "2" (srcp+(n-4)) \
337: : "memory" ); \
338: } \
339: switch (n & 3) { \
340: case 3: dstp[2] = srcp[2]; \
341: case 2: dstp[1] = srcp[1]; \
342: case 1: dstp[0] = srcp[0]; \
343: break; \
344: default: \
345: break; \
346: } \
347: } while(0)
348: #endif
349: #ifndef SDL_revcpy
350: extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
351: #endif
352:
353: #ifdef HAVE_MEMMOVE
354: #define SDL_memmove memmove
355: #elif defined(HAVE_BCOPY)
356: #define SDL_memmove(d, s, n) bcopy((s), (d), (n))
357: #else
358: #define SDL_memmove(dst, src, len) \
359: do { \
360: if ( dst < src ) { \
361: SDL_memcpy(dst, src, len); \
362: } else { \
363: SDL_revcpy(dst, src, len); \
364: } \
365: } while(0)
366: #endif
367:
368: #ifdef HAVE_MEMCMP
369: #define SDL_memcmp memcmp
370: #else
371: extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
372: #endif
373:
374: #ifdef HAVE_STRLEN
375: #define SDL_strlen strlen
376: #else
377: extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
378: #endif
379:
380: #ifdef HAVE_STRLCPY
381: #define SDL_strlcpy strlcpy
382: #else
383: extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen);
384: #endif
385:
386: #ifdef HAVE_STRLCAT
387: #define SDL_strlcat strlcat
388: #else
389: extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen);
390: #endif
391:
392: #ifdef HAVE_STRDUP
393: #define SDL_strdup strdup
394: #else
395: extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
396: #endif
397:
398: #ifdef HAVE__STRREV
399: #define SDL_strrev _strrev
400: #else
401: extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
402: #endif
403:
404: #ifdef HAVE__STRUPR
405: #define SDL_strupr _strupr
406: #else
407: extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
408: #endif
409:
410: #ifdef HAVE__STRLWR
411: #define SDL_strlwr _strlwr
412: #else
413: extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
414: #endif
415:
416: #ifdef HAVE_STRCHR
417: #define SDL_strchr strchr
418: #elif defined(HAVE_INDEX)
419: #define SDL_strchr index
420: #else
421: extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
422: #endif
423:
424: #ifdef HAVE_STRRCHR
425: #define SDL_strrchr strrchr
426: #elif defined(HAVE_RINDEX)
427: #define SDL_strrchr rindex
428: #else
429: extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
430: #endif
431:
432: #ifdef HAVE_STRSTR
433: #define SDL_strstr strstr
434: #else
435: extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
436: #endif
437:
438: #ifdef HAVE_ITOA
439: #define SDL_itoa itoa
440: #else
441: #define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix)
442: #endif
443:
444: #ifdef HAVE__LTOA
445: #define SDL_ltoa _ltoa
446: #else
447: extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
448: #endif
449:
450: #ifdef HAVE__UITOA
451: #define SDL_uitoa _uitoa
452: #else
453: #define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix)
454: #endif
455:
456: #ifdef HAVE__ULTOA
457: #define SDL_ultoa _ultoa
458: #else
459: extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
460: #endif
461:
462: #ifdef HAVE_STRTOL
463: #define SDL_strtol strtol
464: #else
465: extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
466: #endif
467:
468: #ifdef HAVE_STRTOUL
469: #define SDL_strtoul strtoul
470: #else
471: extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base);
472: #endif
473:
474: #ifdef SDL_HAS_64BIT_TYPE
475:
476: #ifdef HAVE__I64TOA
477: #define SDL_lltoa _i64toa
478: #else
479: extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
480: #endif
481:
482: #ifdef HAVE__UI64TOA
483: #define SDL_ulltoa _ui64toa
484: #else
485: extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
486: #endif
487:
488: #ifdef HAVE_STRTOLL
489: #define SDL_strtoll strtoll
490: #else
491: extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
492: #endif
493:
494: #ifdef HAVE_STRTOULL
495: #define SDL_strtoull strtoull
496: #else
497: extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base);
498: #endif
499:
500: #endif /* SDL_HAS_64BIT_TYPE */
501:
502: #ifdef HAVE_STRTOD
503: #define SDL_strtod strtod
504: #else
505: extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
506: #endif
507:
508: #ifdef HAVE_ATOI
509: #define SDL_atoi atoi
510: #else
511: #define SDL_atoi(X) SDL_strtol(X, NULL, 0)
512: #endif
513:
514: #ifdef HAVE_ATOF
515: #define SDL_atof atof
516: #else
517: #define SDL_atof(X) SDL_strtod(X, NULL)
518: #endif
519:
520: #ifdef HAVE_STRCMP
521: #define SDL_strcmp strcmp
522: #else
523: extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
524: #endif
525:
526: #ifdef HAVE_STRNCMP
527: #define SDL_strncmp strncmp
528: #else
529: extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
530: #endif
531:
532: #ifdef HAVE_STRCASECMP
533: #define SDL_strcasecmp strcasecmp
534: #elif defined(HAVE__STRICMP)
535: #define SDL_strcasecmp _stricmp
536: #else
537: extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
538: #endif
539:
540: #ifdef HAVE_STRNCASECMP
541: #define SDL_strncasecmp strncasecmp
542: #elif defined(HAVE__STRNICMP)
543: #define SDL_strncasecmp _strnicmp
544: #else
545: extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen);
546: #endif
547:
548: #ifdef HAVE_SSCANF
549: #define SDL_sscanf sscanf
550: #else
551: extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
552: #endif
553:
554: #ifdef HAVE_SNPRINTF
555: #define SDL_snprintf snprintf
556: #else
557: extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
558: #endif
559:
560: #ifdef HAVE_VSNPRINTF
561: #define SDL_vsnprintf vsnprintf
562: #else
563: extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
564: #endif
565:
566: /* The SDL implementation of iconv() returns these error codes */
567: #define SDL_ICONV_ERROR (size_t)-1
568: #define SDL_ICONV_E2BIG (size_t)-2
569: #define SDL_ICONV_EILSEQ (size_t)-3
570: #define SDL_ICONV_EINVAL (size_t)-4
571:
572: #ifdef HAVE_ICONV
573: #define SDL_iconv_t iconv_t
574: #define SDL_iconv_open iconv_open
575: #define SDL_iconv_close iconv_close
576: #else
577: typedef struct _SDL_iconv_t *SDL_iconv_t;
578: extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode);
579: extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
580: #endif
581: extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
582: /* This function converts a string between encodings in one pass, returning a
583: string that must be freed with SDL_free() or NULL on error.
584: */
585: extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft);
586: #define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
587: #define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
588: #define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
589:
590: /* Ends C function definitions when using C++ */
591: #ifdef __cplusplus
592: }
593: #endif
594: #include "close_code.h"
595:
596: #endif /* _SDL_stdinc_h */
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