// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #ifndef CORE_FXCRT_FX_SYSTEM_H_ #define CORE_FXCRT_FX_SYSTEM_H_ #include <assert.h> #include <math.h> #include <stdarg.h> #include <stddef.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <wchar.h> // _FX_OS_ values: #define _FX_WIN32_DESKTOP_ 1 #define _FX_WIN64_DESKTOP_ 2 #define _FX_LINUX_DESKTOP_ 4 #define _FX_MACOSX_ 7 #define _FX_ANDROID_ 12 // _FXM_PLATFORM_ values; #define _FXM_PLATFORM_WINDOWS_ 1 // _FX_WIN32_DESKTOP_ or _FX_WIN64_DESKTOP_. #define _FXM_PLATFORM_LINUX_ 2 // _FX_LINUX_DESKTOP_ always. #define _FXM_PLATFORM_APPLE_ 3 // _FX_MACOSX_ always. #define _FXM_PLATFORM_ANDROID_ 4 // _FX_ANDROID_ always. #ifndef _FX_OS_ #if defined(__ANDROID__) #define _FX_OS_ _FX_ANDROID_ #define _FXM_PLATFORM_ _FXM_PLATFORM_ANDROID_ #elif defined(_WIN32) #define _FX_OS_ _FX_WIN32_DESKTOP_ #define _FXM_PLATFORM_ _FXM_PLATFORM_WINDOWS_ #elif defined(_WIN64) #define _FX_OS_ _FX_WIN64_DESKTOP_ #define _FXM_PLATFORM_ _FXM_PLATFORM_WINDOWS_ #elif defined(__linux__) #define _FX_OS_ _FX_LINUX_DESKTOP_ #define _FXM_PLATFORM_ _FXM_PLATFORM_LINUX_ #elif defined(__APPLE__) #define _FX_OS_ _FX_MACOSX_ #define _FXM_PLATFORM_ _FXM_PLATFORM_APPLE_ #endif #endif // _FX_OS_ #if !defined(_FX_OS_) || _FX_OS_ == 0 #error Sorry, can not figure out target OS. Please specify _FX_OS_ macro. #endif #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ #include <windows.h> #include <sal.h> #endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ #include <Carbon/Carbon.h> #include <libkern/OSAtomic.h> #endif // _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ #ifdef __cplusplus extern "C" { #endif // __cplusplus #define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001) #define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb))) #define IsFloatSmaller(fa, fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb))) #define IsFloatEqual(fa, fb) IsFloatZero((fa) - (fb)) // PDFium string sizes are limited to 2^31-1, and the value is signed to // allow -1 as a placeholder for "unknown". // TODO(palmer): it should be a |size_t|, or at least unsigned. typedef int FX_STRSIZE; // PDFium file sizes match the platform, but PDFium itself does not support // files larger than 2GB even if the platform does. The value must be signed // to support -1 error returns. // TODO(tsepez): support larger files. #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ #define FX_FILESIZE int32_t #else // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ #define FX_FILESIZE off_t #endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ #ifndef ASSERT #ifndef NDEBUG #define ASSERT assert #else #define ASSERT(a) #endif // NDEBUG #endif // ASSERT #if defined(__clang__) || defined(__GNUC__) #define PDFIUM_IMMEDIATE_CRASH() __builtin_trap() #else #define PDFIUM_IMMEDIATE_CRASH() ((void)(*(volatile char*)0 = 0)) #endif // defined(__clang__) || defined(__GNUC__) // M_PI not universally present on all platforms. #define FX_PI 3.1415926535897932384626433832795f #define FX_BEZIER 0.5522847498308f // NOTE: prevent use of the return value from snprintf() since some platforms // have different return values (e.g. windows _vsnprintf()), and provide // versions that always NUL-terminate. #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ && _MSC_VER < 1900 void FXSYS_snprintf(char* str, size_t size, _Printf_format_string_ const char* fmt, ...); void FXSYS_vsnprintf(char* str, size_t size, const char* fmt, va_list ap); #else // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ && _MSC_VER < 1900 #define FXSYS_snprintf (void)snprintf #define FXSYS_vsnprintf (void)vsnprintf #endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ && _MSC_VER < 1900 #define FXSYS_sprintf DO_NOT_USE_SPRINTF_DIE_DIE_DIE #define FXSYS_vsprintf DO_NOT_USE_VSPRINTF_DIE_DIE_DIE #ifdef __cplusplus } // extern "C" #include "third_party/base/numerics/safe_conversions.h" #define FXSYS_strlen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(strlen(ptr)) #define FXSYS_wcslen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(wcslen(ptr)) // Overloaded functions for C++ templates inline FX_STRSIZE FXSYS_len(const char* ptr) { return FXSYS_strlen(ptr); } inline FX_STRSIZE FXSYS_len(const wchar_t* ptr) { return FXSYS_wcslen(ptr); } inline int FXSYS_cmp(const char* ptr1, const char* ptr2, size_t len) { return memcmp(ptr1, ptr2, len); } inline int FXSYS_cmp(const wchar_t* ptr1, const wchar_t* ptr2, size_t len) { return wmemcmp(ptr1, ptr2, len); } inline const char* FXSYS_chr(const char* ptr, char ch, size_t len) { return reinterpret_cast<const char*>(memchr(ptr, ch, len)); } inline const wchar_t* FXSYS_chr(const wchar_t* ptr, wchar_t ch, size_t len) { return wmemchr(ptr, ch, len); } extern "C" { #else #define FXSYS_strlen(ptr) ((FX_STRSIZE)strlen(ptr)) #define FXSYS_wcslen(ptr) ((FX_STRSIZE)wcslen(ptr)) #endif // __cplusplus #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ #define FXSYS_GetACP GetACP #define FXSYS_itoa _itoa #define FXSYS_strlwr _strlwr #define FXSYS_strupr _strupr #define FXSYS_stricmp _stricmp #define FXSYS_pow(a, b) (float)powf(a, b) #define FXSYS_GetFullPathName GetFullPathName #define FXSYS_GetModuleFileName GetModuleFileName size_t FXSYS_wcsftime(wchar_t* strDest, size_t maxsize, const wchar_t* format, const struct tm* timeptr); #ifdef _NATIVE_WCHAR_T_DEFINED #define FXSYS_wcsicmp(str1, str2) _wcsicmp((wchar_t*)(str1), (wchar_t*)(str2)) #define FXSYS_WideCharToMultiByte(p1, p2, p3, p4, p5, p6, p7, p8) \ WideCharToMultiByte(p1, p2, (const wchar_t*)(p3), p4, p5, p6, p7, p8) #define FXSYS_MultiByteToWideChar(p1, p2, p3, p4, p5, p6) \ MultiByteToWideChar(p1, p2, p3, p4, (wchar_t*)(p5), p6) #define FXSYS_wcslwr(str) _wcslwr((wchar_t*)(str)) #define FXSYS_wcsupr(str) _wcsupr((wchar_t*)(str)) #else // _NATIVE_WCHAR_T_DEFINED #define FXSYS_wcsicmp _wcsicmp #define FXSYS_WideCharToMultiByte WideCharToMultiByte #define FXSYS_MultiByteToWideChar MultiByteToWideChar #define FXSYS_wcslwr _wcslwr #define FXSYS_wcsupr _wcsupr #endif // _NATIVE_WCHAR_T_DEFINED #else // _FXM_PLATFORM == _FXM_PLATFORM_WINDOWS_ int FXSYS_GetACP(); char* FXSYS_itoa(int value, char* str, int radix); int FXSYS_WideCharToMultiByte(uint32_t codepage, uint32_t dwFlags, const wchar_t* wstr, int wlen, char* buf, int buflen, const char* default_str, int* pUseDefault); int FXSYS_MultiByteToWideChar(uint32_t codepage, uint32_t dwFlags, const char* bstr, int blen, wchar_t* buf, int buflen); uint32_t FXSYS_GetFullPathName(const char* filename, uint32_t buflen, char* buf, char** filepart); uint32_t FXSYS_GetModuleFileName(void* hModule, char* buf, uint32_t bufsize); char* FXSYS_strlwr(char* str); char* FXSYS_strupr(char* str); int FXSYS_stricmp(const char*, const char*); int FXSYS_wcsicmp(const wchar_t* str1, const wchar_t* str2); wchar_t* FXSYS_wcslwr(wchar_t* str); wchar_t* FXSYS_wcsupr(wchar_t* str); #define FXSYS_pow(a, b) (float)pow(a, b) #define FXSYS_wcsftime wcsftime #endif // _FXM_PLATFORM == _FXM_PLATFORM_WINDOWS_ #define FXDWORD_GET_LSBFIRST(p) \ ((static_cast<uint32_t>(p[3]) << 24) | (static_cast<uint32_t>(p[2]) << 16) | \ (static_cast<uint32_t>(p[1]) << 8) | (static_cast<uint32_t>(p[0]))) #define FXDWORD_GET_MSBFIRST(p) \ ((static_cast<uint32_t>(p[0]) << 24) | (static_cast<uint32_t>(p[1]) << 16) | \ (static_cast<uint32_t>(p[2]) << 8) | (static_cast<uint32_t>(p[3]))) int32_t FXSYS_atoi(const char* str); uint32_t FXSYS_atoui(const char* str); int32_t FXSYS_wtoi(const wchar_t* str); int64_t FXSYS_atoi64(const char* str); int64_t FXSYS_wtoi64(const wchar_t* str); const char* FXSYS_i64toa(int64_t value, char* str, int radix); int FXSYS_round(float f); #define FXSYS_sqrt2(a, b) (float)sqrt((a) * (a) + (b) * (b)) #ifdef __cplusplus }; // extern C #endif // __cplusplus // To print a size_t value in a portable way: // size_t size; // printf("xyz: %" PRIuS, size); // The "u" in the macro corresponds to %u, and S is for "size". #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ #if (defined(_INTTYPES_H) || defined(_INTTYPES_H_)) && !defined(PRId64) #error "inttypes.h has already been included before this header file, but " #error "without __STDC_FORMAT_MACROS defined." #endif #if !defined(__STDC_FORMAT_MACROS) #define __STDC_FORMAT_MACROS #endif #include <inttypes.h> #if !defined(PRIuS) #define PRIuS "zu" #endif #else // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ #if !defined(PRIuS) #define PRIuS "Iu" #endif #endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ // Prevent a function from ever being inlined, typically because we'd // like it to appear in stack traces. #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ #define NEVER_INLINE __declspec(noinline) #else // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ #define NEVER_INLINE __attribute__((__noinline__)) #endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ // Handle differnces between platform's variadic function implementations. #if defined(__ARMCC_VERSION) || \ (!defined(_MSC_VER) && (_FX_CPU_ == _FX_X64_ || _FX_CPU_ == _FX_IA64_ || \ _FX_CPU_ == _FX_ARM64_)) || \ defined(__native_client__) #define FX_VA_COPY(dst, src) va_copy((dst), (src)) #else #define FX_VA_COPY(dst, src) ((dst) = (src)) #endif #endif // CORE_FXCRT_FX_SYSTEM_H_