142 lines
4.8 KiB
C
142 lines
4.8 KiB
C
// Copyright 2014 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef CORE_FXCRT_FX_SYSTEM_H_
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#define CORE_FXCRT_FX_SYSTEM_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include "build/build_config.h"
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#include "core/fxcrt/fx_types.h"
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#if defined(_MSC_VER) && _MSC_VER < 1900
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#error Sorry, VC++ 2015 or later is required to compile PDFium.
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#endif // defined(_MSC_VER) && _MSC_VER < 1900
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#if defined(__wasm__) && defined(PDF_ENABLE_V8)
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#error Cannot compile v8 with wasm.
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#endif // PDF_ENABLE_V8
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#if BUILDFLAG(IS_WIN)
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#include <windows.h>
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#endif // BUILDFLAG(IS_WIN)
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#define FXSYS_IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
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#define FXSYS_IsFloatBigger(fa, fb) \
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((fa) > (fb) && !FXSYS_IsFloatZero((fa) - (fb)))
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#define FXSYS_IsFloatSmaller(fa, fb) \
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((fa) < (fb) && !FXSYS_IsFloatZero((fa) - (fb)))
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#define FXSYS_IsFloatEqual(fa, fb) FXSYS_IsFloatZero((fa) - (fb))
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// M_PI not universally present on all platforms.
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#define FXSYS_PI 3.1415926535897932384626433832795f
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#define FXSYS_BEZIER 0.5522847498308f
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// NOTE: prevent use of the return value from snprintf() since some platforms
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// have different return values.
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#define FXSYS_snprintf (void)snprintf
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#define FXSYS_vsnprintf (void)vsnprintf
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#define FXSYS_sprintf DO_NOT_USE_SPRINTF_DIE_DIE_DIE
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#define FXSYS_vsprintf DO_NOT_USE_VSPRINTF_DIE_DIE_DIE
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#if BUILDFLAG(IS_WIN)
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#define FXSYS_itoa _itoa
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#define FXSYS_strlwr _strlwr
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#define FXSYS_strupr _strupr
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#define FXSYS_stricmp _stricmp
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#define FXSYS_wcsicmp _wcsicmp
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#define FXSYS_wcslwr _wcslwr
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#define FXSYS_wcsupr _wcsupr
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size_t FXSYS_wcsftime(wchar_t* strDest,
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size_t maxsize,
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const wchar_t* format,
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const struct tm* timeptr);
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#define FXSYS_SetLastError SetLastError
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#define FXSYS_GetLastError GetLastError
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#else // BUILDFLAG(IS_WIN)
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char* FXSYS_itoa(int value, char* str, int radix);
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char* FXSYS_strlwr(char* str);
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char* FXSYS_strupr(char* str);
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int FXSYS_stricmp(const char* str1, const char* str2);
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int FXSYS_wcsicmp(const wchar_t* str1, const wchar_t* str2);
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wchar_t* FXSYS_wcslwr(wchar_t* str);
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wchar_t* FXSYS_wcsupr(wchar_t* str);
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#define FXSYS_wcsftime wcsftime
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void FXSYS_SetLastError(uint32_t err);
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uint32_t FXSYS_GetLastError();
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#endif // BUILDFLAG(IS_WIN)
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int32_t FXSYS_atoi(const char* str);
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uint32_t FXSYS_atoui(const char* str);
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int32_t FXSYS_wtoi(const wchar_t* str);
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int64_t FXSYS_atoi64(const char* str);
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const char* FXSYS_i64toa(int64_t value, char* str, int radix);
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int FXSYS_roundf(float f);
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int FXSYS_round(double d);
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float FXSYS_sqrt2(float a, float b);
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#ifdef __cplusplus
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} // extern "C"
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// C++-only section
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// Overloaded functions for C++ templates
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inline size_t FXSYS_len(const char* ptr) {
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return strlen(ptr);
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}
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inline size_t FXSYS_len(const wchar_t* ptr) {
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return wcslen(ptr);
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}
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inline int FXSYS_cmp(const char* ptr1, const char* ptr2, size_t len) {
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return memcmp(ptr1, ptr2, len);
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}
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inline int FXSYS_cmp(const wchar_t* ptr1, const wchar_t* ptr2, size_t len) {
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return wmemcmp(ptr1, ptr2, len);
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}
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inline const char* FXSYS_chr(const char* ptr, char ch, size_t len) {
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return reinterpret_cast<const char*>(memchr(ptr, ch, len));
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}
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inline const wchar_t* FXSYS_chr(const wchar_t* ptr, wchar_t ch, size_t len) {
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return wmemchr(ptr, ch, len);
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}
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// Could be C, but uses C++-style casting.
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#define FXSYS_UINT16_GET_LSBFIRST(p) \
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(static_cast<uint16_t>( \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[1])) << 8) | \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[0])))))
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#define FXSYS_UINT16_GET_MSBFIRST(p) \
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(static_cast<uint16_t>( \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[0])) << 8) | \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[1])))))
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#define FXSYS_UINT32_GET_LSBFIRST(p) \
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((static_cast<uint32_t>(static_cast<uint8_t>((p)[3])) << 24) | \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[2])) << 16) | \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[1])) << 8) | \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[0]))))
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#define FXSYS_UINT32_GET_MSBFIRST(p) \
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((static_cast<uint32_t>(static_cast<uint8_t>((p)[0])) << 24) | \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[1])) << 16) | \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[2])) << 8) | \
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(static_cast<uint32_t>(static_cast<uint8_t>((p)[3]))))
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#endif // __cplusplus
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#endif // CORE_FXCRT_FX_SYSTEM_H_
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