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1 // Copyright 2014 PDFium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
6 | |
7 #ifndef CORE_INCLUDE_FXCRT_FX_SYSTEM_H_ | |
8 #define CORE_INCLUDE_FXCRT_FX_SYSTEM_H_ | |
9 | |
10 #include <assert.h> | |
11 #include <math.h> | |
12 #include <stdarg.h> | |
13 #include <stddef.h> | |
14 #include <stdint.h> | |
15 #include <stdio.h> | |
16 #include <stdlib.h> | |
17 #include <string.h> | |
18 #include <wchar.h> | |
19 | |
20 // _FX_OS_ values: | |
21 #define _FX_WIN32_DESKTOP_ 1 | |
22 #define _FX_WIN64_DESKTOP_ 2 | |
23 #define _FX_LINUX_DESKTOP_ 4 | |
24 #define _FX_MACOSX_ 7 | |
25 #define _FX_ANDROID_ 12 | |
26 | |
27 // _FXM_PLATFORM_ values; | |
28 #define _FXM_PLATFORM_WINDOWS_ 1 // _FX_WIN32_DESKTOP_ or _FX_WIN64_DESKTOP_. | |
29 #define _FXM_PLATFORM_LINUX_ 2 // _FX_LINUX_DESKTOP_ always. | |
30 #define _FXM_PLATFORM_APPLE_ 3 // _FX_MACOSX_ always. | |
31 #define _FXM_PLATFORM_ANDROID_ 4 // _FX_ANDROID_ always. | |
32 | |
33 #ifndef _FX_OS_ | |
34 #if defined(__ANDROID__) | |
35 #define _FX_OS_ _FX_ANDROID_ | |
36 #define _FXM_PLATFORM_ _FXM_PLATFORM_ANDROID_ | |
37 #elif defined(_WIN32) | |
38 #define _FX_OS_ _FX_WIN32_DESKTOP_ | |
39 #define _FXM_PLATFORM_ _FXM_PLATFORM_WINDOWS_ | |
40 #elif defined(_WIN64) | |
41 #define _FX_OS_ _FX_WIN64_DESKTOP_ | |
42 #define _FXM_PLATFORM_ _FXM_PLATFORM_WINDOWS_ | |
43 #elif defined(__linux__) | |
44 #define _FX_OS_ _FX_LINUX_DESKTOP_ | |
45 #define _FXM_PLATFORM_ _FXM_PLATFORM_LINUX_ | |
46 #elif defined(__APPLE__) | |
47 #define _FX_OS_ _FX_MACOSX_ | |
48 #define _FXM_PLATFORM_ _FXM_PLATFORM_APPLE_ | |
49 #endif | |
50 #endif // _FX_OS_ | |
51 | |
52 #if !defined(_FX_OS_) || _FX_OS_ == 0 | |
53 #error Sorry, can not figure out target OS. Please specify _FX_OS_ macro. | |
54 #endif | |
55 | |
56 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | |
57 #define _CRT_SECURE_NO_WARNINGS | |
58 #include <windows.h> | |
59 #include <sal.h> | |
60 #endif | |
61 | |
62 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ | |
63 #include <Carbon/Carbon.h> | |
64 #include <libkern/OSAtomic.h> | |
65 #endif | |
66 | |
67 #ifdef __cplusplus | |
68 extern "C" { | |
69 #endif | |
70 typedef void* FX_POSITION; // Keep until fxcrt containers gone | |
71 typedef uint32_t FX_DWORD; // Keep - "an efficient type" | |
72 typedef float FX_FLOAT; // Keep, allow upgrade to doubles. | |
73 typedef double FX_DOUBLE; // Keep, allow downgrade to floats. | |
74 typedef int FX_BOOL; // Keep, sadly not always 0 or 1. | |
75 typedef char FX_CHAR; // Keep, questionable signedness. | |
76 typedef wchar_t FX_WCHAR; // Keep, maybe bad platform wchars. | |
77 | |
78 // PDFium string sizes are limited to 2^31-1, and the value is signed to | |
79 // allow -1 as a placeholder for "unknown". | |
80 // TODO(palmer): it should be a |size_t|, or at least unsigned. | |
81 typedef int FX_STRSIZE; | |
82 | |
83 #ifndef TRUE | |
84 #define TRUE 1 | |
85 #endif | |
86 | |
87 #ifndef FALSE | |
88 #define FALSE 0 | |
89 #endif | |
90 | |
91 #ifdef __cplusplus | |
92 static_assert(TRUE == true, "true_needs_to_be_true"); | |
93 static_assert(FALSE == false, "false_needs_to_be_false"); | |
94 #endif | |
95 | |
96 #ifndef NULL | |
97 #define NULL 0 | |
98 #endif | |
99 | |
100 #define FXSYS_assert assert | |
101 #ifndef ASSERT | |
102 #ifndef NDEBUG | |
103 #define ASSERT FXSYS_assert | |
104 #else | |
105 #define ASSERT(a) | |
106 #endif | |
107 #endif | |
108 | |
109 // M_PI not universally present on all platforms. | |
110 #define FX_PI 3.1415926535897932384626433832795f | |
111 #define FX_BEZIER 0.5522847498308f | |
112 | |
113 // NOTE: prevent use of the return value from snprintf() since some platforms | |
114 // have different return values (e.g. windows _vsnprintf()), and provide | |
115 // versions that always NUL-terminate. | |
116 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ && _MSC_VER < 1900 | |
117 void FXSYS_snprintf(char* str, | |
118 size_t size, | |
119 _Printf_format_string_ const char* fmt, | |
120 ...); | |
121 void FXSYS_vsnprintf(char* str, size_t size, const char* fmt, va_list ap); | |
122 #else | |
123 #define FXSYS_snprintf (void) snprintf | |
124 #define FXSYS_vsnprintf (void) vsnprintf | |
125 #endif | |
126 | |
127 #define FXSYS_sprintf DO_NOT_USE_SPRINTF_DIE_DIE_DIE | |
128 #define FXSYS_vsprintf DO_NOT_USE_VSPRINTF_DIE_DIE_DIE | |
129 #define FXSYS_strchr strchr | |
130 #define FXSYS_strncmp strncmp | |
131 #define FXSYS_strcmp strcmp | |
132 #define FXSYS_strcpy strcpy | |
133 #define FXSYS_strncpy strncpy | |
134 #define FXSYS_strstr strstr | |
135 #define FXSYS_FILE FILE | |
136 #define FXSYS_fopen fopen | |
137 #define FXSYS_fclose fclose | |
138 #define FXSYS_SEEK_END SEEK_END | |
139 #define FXSYS_SEEK_SET SEEK_SET | |
140 #define FXSYS_fseek fseek | |
141 #define FXSYS_ftell ftell | |
142 #define FXSYS_fread fread | |
143 #define FXSYS_fwrite fwrite | |
144 #define FXSYS_fprintf fprintf | |
145 #define FXSYS_fflush fflush | |
146 | |
147 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | |
148 #ifdef _NATIVE_WCHAR_T_DEFINED | |
149 #define FXSYS_wfopen(f, m) _wfopen((const wchar_t*)(f), (const wchar_t*)(m)) | |
150 #else | |
151 #define FXSYS_wfopen _wfopen | |
152 #endif | |
153 #else | |
154 FXSYS_FILE* FXSYS_wfopen(const FX_WCHAR* filename, const FX_WCHAR* mode); | |
155 #endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | |
156 | |
157 #ifdef __cplusplus | |
158 } // extern "C" | |
159 | |
160 #include "third_party/base/numerics/safe_conversions.h" | |
161 | |
162 #define FXSYS_strlen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(strlen(ptr)) | |
163 #define FXSYS_wcslen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(wcslen(ptr)) | |
164 | |
165 extern "C" { | |
166 #else | |
167 #define FXSYS_strlen(ptr) ((FX_STRSIZE)strlen(ptr)) | |
168 #define FXSYS_wcslen(ptr) ((FX_STRSIZE)wcslen(ptr)) | |
169 #endif | |
170 | |
171 #define FXSYS_wcscmp wcscmp | |
172 #define FXSYS_wcschr wcschr | |
173 #define FXSYS_wcsstr wcsstr | |
174 #define FXSYS_wcsncmp wcsncmp | |
175 #define FXSYS_vswprintf vswprintf | |
176 #define FXSYS_mbstowcs mbstowcs | |
177 #define FXSYS_wcstombs wcstombs | |
178 #define FXSYS_memcmp memcmp | |
179 #define FXSYS_memcpy memcpy | |
180 #define FXSYS_memmove memmove | |
181 #define FXSYS_memset memset | |
182 #define FXSYS_memchr memchr | |
183 #define FXSYS_qsort qsort | |
184 #define FXSYS_bsearch bsearch | |
185 | |
186 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | |
187 #define FXSYS_GetACP GetACP | |
188 #define FXSYS_itoa _itoa | |
189 #define FXSYS_strlwr _strlwr | |
190 #define FXSYS_strupr _strupr | |
191 #define FXSYS_stricmp _stricmp | |
192 #ifdef _NATIVE_WCHAR_T_DEFINED | |
193 #define FXSYS_wcsicmp(str1, str2) _wcsicmp((wchar_t*)(str1), (wchar_t*)(str2)) | |
194 #define FXSYS_WideCharToMultiByte(p1, p2, p3, p4, p5, p6, p7, p8) \ | |
195 WideCharToMultiByte(p1, p2, (const wchar_t*)(p3), p4, p5, p6, p7, p8) | |
196 #define FXSYS_MultiByteToWideChar(p1, p2, p3, p4, p5, p6) \ | |
197 MultiByteToWideChar(p1, p2, p3, p4, (wchar_t*)(p5), p6) | |
198 #define FXSYS_wcslwr(str) _wcslwr((wchar_t*)(str)) | |
199 #define FXSYS_wcsupr(str) _wcsupr((wchar_t*)(str)) | |
200 #else | |
201 #define FXSYS_wcsicmp _wcsicmp | |
202 #define FXSYS_WideCharToMultiByte WideCharToMultiByte | |
203 #define FXSYS_MultiByteToWideChar MultiByteToWideChar | |
204 #define FXSYS_wcslwr _wcslwr | |
205 #define FXSYS_wcsupr _wcsupr | |
206 #endif | |
207 #define FXSYS_GetFullPathName GetFullPathName | |
208 #define FXSYS_GetModuleFileName GetModuleFileName | |
209 #else | |
210 int FXSYS_GetACP(void); | |
211 char* FXSYS_itoa(int value, char* str, int radix); | |
212 int FXSYS_WideCharToMultiByte(FX_DWORD codepage, | |
213 FX_DWORD dwFlags, | |
214 const wchar_t* wstr, | |
215 int wlen, | |
216 char* buf, | |
217 int buflen, | |
218 const char* default_str, | |
219 int* pUseDefault); | |
220 int FXSYS_MultiByteToWideChar(FX_DWORD codepage, | |
221 FX_DWORD dwFlags, | |
222 const char* bstr, | |
223 int blen, | |
224 wchar_t* buf, | |
225 int buflen); | |
226 FX_DWORD FXSYS_GetFullPathName(const char* filename, | |
227 FX_DWORD buflen, | |
228 char* buf, | |
229 char** filepart); | |
230 FX_DWORD FXSYS_GetModuleFileName(void* hModule, char* buf, FX_DWORD bufsize); | |
231 char* FXSYS_strlwr(char* str); | |
232 char* FXSYS_strupr(char* str); | |
233 int FXSYS_stricmp(const char*, const char*); | |
234 int FXSYS_wcsicmp(const wchar_t* str1, const wchar_t* str2); | |
235 wchar_t* FXSYS_wcslwr(wchar_t* str); | |
236 wchar_t* FXSYS_wcsupr(wchar_t* str); | |
237 #endif // _FXM_PLATFORM == _FXM_PLATFORM_WINDOWS_ | |
238 | |
239 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | |
240 #define FXSYS_pow(a, b) (FX_FLOAT) powf(a, b) | |
241 #else | |
242 #define FXSYS_pow(a, b) (FX_FLOAT) pow(a, b) | |
243 #endif | |
244 #define FXSYS_sqrt(a) (FX_FLOAT) sqrt(a) | |
245 #define FXSYS_fabs(a) (FX_FLOAT) fabs(a) | |
246 #define FXSYS_atan2(a, b) (FX_FLOAT) atan2(a, b) | |
247 #define FXSYS_ceil(a) (FX_FLOAT) ceil(a) | |
248 #define FXSYS_floor(a) (FX_FLOAT) floor(a) | |
249 #define FXSYS_cos(a) (FX_FLOAT) cos(a) | |
250 #define FXSYS_acos(a) (FX_FLOAT) acos(a) | |
251 #define FXSYS_sin(a) (FX_FLOAT) sin(a) | |
252 #define FXSYS_log(a) (FX_FLOAT) log(a) | |
253 #define FXSYS_log10(a) (FX_FLOAT) log10(a) | |
254 #define FXSYS_fmod(a, b) (FX_FLOAT) fmod(a, b) | |
255 #define FXSYS_abs abs | |
256 #define FXDWORD_FROM_LSBFIRST(i) (i) | |
257 #define FXDWORD_FROM_MSBFIRST(i) \ | |
258 (((uint8_t)(i) << 24) | ((uint8_t)((i) >> 8) << 16) | \ | |
259 ((uint8_t)((i) >> 16) << 8) | (uint8_t)((i) >> 24)) | |
260 #define FXDWORD_GET_LSBFIRST(p) \ | |
261 ((static_cast<FX_DWORD>(p[3]) << 24) | (static_cast<FX_DWORD>(p[2]) << 16) | \ | |
262 (static_cast<FX_DWORD>(p[1]) << 8) | (static_cast<FX_DWORD>(p[0]))) | |
263 #define FXDWORD_GET_MSBFIRST(p) \ | |
264 ((static_cast<FX_DWORD>(p[0]) << 24) | (static_cast<FX_DWORD>(p[1]) << 16) | \ | |
265 (static_cast<FX_DWORD>(p[2]) << 8) | (static_cast<FX_DWORD>(p[3]))) | |
266 #define FXSYS_HIBYTE(word) ((uint8_t)((word) >> 8)) | |
267 #define FXSYS_LOBYTE(word) ((uint8_t)(word)) | |
268 #define FXSYS_HIWORD(dword) ((uint16_t)((dword) >> 16)) | |
269 #define FXSYS_LOWORD(dword) ((uint16_t)(dword)) | |
270 int32_t FXSYS_atoi(const FX_CHAR* str); | |
271 uint32_t FXSYS_atoui(const FX_CHAR* str); | |
272 int32_t FXSYS_wtoi(const FX_WCHAR* str); | |
273 int64_t FXSYS_atoi64(const FX_CHAR* str); | |
274 int64_t FXSYS_wtoi64(const FX_WCHAR* str); | |
275 const FX_CHAR* FXSYS_i64toa(int64_t value, FX_CHAR* str, int radix); | |
276 int FXSYS_round(FX_FLOAT f); | |
277 #define FXSYS_sqrt2(a, b) (FX_FLOAT) FXSYS_sqrt((a) * (a) + (b) * (b)) | |
278 #ifdef __cplusplus | |
279 }; | |
280 #endif | |
281 | |
282 // To print a size_t value in a portable way: | |
283 // size_t size; | |
284 // printf("xyz: %" PRIuS, size); | |
285 // The "u" in the macro corresponds to %u, and S is for "size". | |
286 | |
287 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ | |
288 | |
289 #if (defined(_INTTYPES_H) || defined(_INTTYPES_H_)) && !defined(PRId64) | |
290 #error "inttypes.h has already been included before this header file, but " | |
291 #error "without __STDC_FORMAT_MACROS defined." | |
292 #endif | |
293 | |
294 #if !defined(__STDC_FORMAT_MACROS) | |
295 #define __STDC_FORMAT_MACROS | |
296 #endif | |
297 | |
298 #include <inttypes.h> | |
299 | |
300 #if !defined(PRIuS) | |
301 #define PRIuS "zu" | |
302 #endif | |
303 | |
304 #else // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ | |
305 | |
306 #if !defined(PRIuS) | |
307 #define PRIuS "Iu" | |
308 #endif | |
309 | |
310 #endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ | |
311 | |
312 // Prevent a function from ever being inlined, typically because we'd | |
313 // like it to appear in stack traces. | |
314 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | |
315 #define NEVER_INLINE __declspec(noinline) | |
316 #else // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | |
317 #define NEVER_INLINE __attribute__((__noinline__)) | |
318 #endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | |
319 | |
320 #endif // CORE_INCLUDE_FXCRT_FX_SYSTEM_H_ | |
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