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 <sal.h> 59#include <windows.h> 60#endif 61 62#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ 63#include <libkern/OSAtomic.h> 64#include <Carbon/Carbon.h> 65#endif 66 67#ifdef __cplusplus 68extern "C" { 69#endif 70typedef void* FX_POSITION; // Keep until fxcrt containers gone 71typedef unsigned short FX_WORD; // Keep - "an efficient small type" 72typedef unsigned int FX_DWORD; // Keep - "an efficient type" 73typedef float FX_FLOAT; // Keep, allow upgrade to doubles. 74typedef int FX_BOOL; // Keep, sadly not always 0 or 1. 75typedef char FX_CHAR; // Keep, questionable signedness. 76typedef 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. 81typedef int FX_STRSIZE; 82 83#if defined(DEBUG) && !defined(_DEBUG) 84#define _DEBUG 85#endif 86 87#ifndef TRUE 88#define TRUE 1 89#endif 90 91#ifndef FALSE 92#define FALSE 0 93#endif 94 95#ifdef __cplusplus 96static_assert(TRUE == true, "true_needs_to_be_true"); 97static_assert(FALSE == false, "false_needs_to_be_false"); 98#endif 99 100#ifndef NULL 101#define NULL 0 102#endif 103 104#define FXSYS_assert assert 105#ifndef ASSERT 106#ifdef _DEBUG 107#define ASSERT FXSYS_assert 108#else 109#define ASSERT(a) 110#endif 111#endif 112 113#define FX_MIN(a, b) (((a) < (b)) ? (a) : (b)) 114#define FX_PI 3.1415926535897932384626433832795f 115 116// NOTE: prevent use of the return value from snprintf() since some platforms 117// have different return values (e.g. windows _vsnprintf()), and provide 118// versions that always NUL-terminate. 119#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ && _MSC_VER < 1900 120void FXSYS_snprintf(char* str, 121 size_t size, 122 _Printf_format_string_ const char* fmt, 123 ...); 124void FXSYS_vsnprintf(char* str, size_t size, const char* fmt, va_list ap); 125#else 126#define FXSYS_snprintf (void) snprintf 127#define FXSYS_vsnprintf (void) vsnprintf 128#endif 129 130#define FXSYS_sprintf DO_NOT_USE_SPRINTF_DIE_DIE_DIE 131#define FXSYS_vsprintf DO_NOT_USE_VSPRINTF_DIE_DIE_DIE 132#define FXSYS_strchr strchr 133#define FXSYS_strncmp strncmp 134#define FXSYS_strcmp strcmp 135#define FXSYS_strcpy strcpy 136#define FXSYS_strncpy strncpy 137#define FXSYS_strstr strstr 138#define FXSYS_FILE FILE 139#define FXSYS_fopen fopen 140#define FXSYS_fclose fclose 141#define FXSYS_SEEK_END SEEK_END 142#define FXSYS_SEEK_SET SEEK_SET 143#define FXSYS_fseek fseek 144#define FXSYS_ftell ftell 145#define FXSYS_fread fread 146#define FXSYS_fwrite fwrite 147#define FXSYS_fprintf fprintf 148#define FXSYS_fflush fflush 149 150#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ 151#ifdef _NATIVE_WCHAR_T_DEFINED 152#define FXSYS_wfopen(f, m) _wfopen((const wchar_t*)(f), (const wchar_t*)(m)) 153#else 154#define FXSYS_wfopen _wfopen 155#endif 156#else 157FXSYS_FILE* FXSYS_wfopen(const FX_WCHAR* filename, const FX_WCHAR* mode); 158#endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ 159 160#ifdef __cplusplus 161} // extern "C" 162#include "third_party/base/numerics/safe_conversions.h" 163#define FXSYS_strlen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(strlen(ptr)) 164#define FXSYS_wcslen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(wcslen(ptr)) 165extern "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 210int FXSYS_GetACP(void); 211char* FXSYS_itoa(int value, char* string, int radix); 212int 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); 220int FXSYS_MultiByteToWideChar(FX_DWORD codepage, 221 FX_DWORD dwFlags, 222 const char* bstr, 223 int blen, 224 wchar_t* buf, 225 int buflen); 226FX_DWORD FXSYS_GetFullPathName(const char* filename, 227 FX_DWORD buflen, 228 char* buf, 229 char** filepart); 230FX_DWORD FXSYS_GetModuleFileName(void* hModule, char* buf, FX_DWORD bufsize); 231char* FXSYS_strlwr(char* str); 232char* FXSYS_strupr(char* str); 233int FXSYS_stricmp(const char*, const char*); 234int FXSYS_wcsicmp(const wchar_t* string1, const wchar_t* string2); 235wchar_t* FXSYS_wcslwr(wchar_t* str); 236wchar_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 ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | (p[0])) 262#define FXDWORD_GET_MSBFIRST(p) \ 263 ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3])) 264#define FXSYS_HIBYTE(word) ((uint8_t)((word) >> 8)) 265#define FXSYS_LOBYTE(word) ((uint8_t)(word)) 266#define FXSYS_HIWORD(dword) ((FX_WORD)((dword) >> 16)) 267#define FXSYS_LOWORD(dword) ((FX_WORD)(dword)) 268int32_t FXSYS_atoi(const FX_CHAR* str); 269int32_t FXSYS_wtoi(const FX_WCHAR* str); 270int64_t FXSYS_atoi64(const FX_CHAR* str); 271int64_t FXSYS_wtoi64(const FX_WCHAR* str); 272const FX_CHAR* FXSYS_i64toa(int64_t value, FX_CHAR* str, int radix); 273int FXSYS_round(FX_FLOAT f); 274#define FXSYS_Mul(a, b) ((a) * (b)) 275#define FXSYS_Div(a, b) ((a) / (b)) 276#define FXSYS_MulDiv(a, b, c) ((a) * (b) / (c)) 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_ 321