mirror of https://github.com/OpenRCT2/OpenRCT2.git
216 lines
7.9 KiB
C++
216 lines
7.9 KiB
C++
/*****************************************************************************
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* Copyright (c) 2014-2023 OpenRCT2 developers
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*
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* For a complete list of all authors, please refer to contributors.md
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* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is licensed under the GNU General Public License version 3.
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*****************************************************************************/
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#pragma once
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#undef M_PI
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// Ignore isatty warning on WIN32
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#ifndef _CRT_NONSTDC_NO_WARNINGS
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# define _CRT_NONSTDC_NO_WARNINGS
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#endif
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#ifdef _MSC_VER
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# include <ctime>
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#endif
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#include "Diagnostic.h"
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#include <cassert>
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#include <cstddef>
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#include <cstdint>
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// Define MAX_PATH for various headers that don't want to include system headers
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// just for MAX_PATH
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#ifndef MAX_PATH
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# define MAX_PATH 260
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#endif
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using colour_t = uint8_t;
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// Gets the name of a symbol as a C string
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#define nameof(symbol) #symbol
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#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
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# include <unistd.h>
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# define STUB() LOG_WARNING("Function %s at %s:%d is a stub.", __PRETTY_FUNCTION__, __FILE__, __LINE__)
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# define _strcmpi _stricmp
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# define _stricmp(x, y) strcasecmp((x), (y))
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# define _strnicmp(x, y, n) strncasecmp((x), (y), (n))
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# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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# define RCT2_ENDIANNESS __ORDER_LITTLE_ENDIAN__
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# define LOBYTE(w) (static_cast<uint8_t>(w))
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# define HIBYTE(w) (static_cast<uint8_t>((static_cast<uint16_t>(w) >> 8) & 0xFF))
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# endif // __BYTE_ORDER__
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# ifndef RCT2_ENDIANNESS
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# error Unknown endianness!
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# endif // RCT2_ENDIANNESS
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#endif // defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
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#ifdef _WIN32
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char* strndup(const char* src, size_t size);
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#endif
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// BSD and macOS have MAP_ANON instead of MAP_ANONYMOUS
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#ifndef MAP_ANONYMOUS
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# define MAP_ANONYMOUS MAP_ANON
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#endif
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#define OPENRCT2_MASTER_SERVER_URL "https://servers.openrct2.io"
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// Time (represented as number of 100-nanosecond intervals since 0001-01-01T00:00:00Z)
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using datetime64 = uint64_t;
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constexpr const datetime64 DATETIME64_MIN = 0;
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// Represent fixed point numbers. dp = decimal point
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using fixed8_1dp = uint8_t;
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using fixed8_2dp = uint8_t;
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using fixed16_1dp = int16_t;
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using fixed16_2dp = int16_t;
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using fixed32_1dp = int32_t;
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using fixed32_2dp = int32_t;
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using fixed64_1dp = int64_t;
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// Money is stored as a multiple of 0.10.
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using money16 = fixed16_1dp;
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using money32 = fixed32_1dp;
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using money64 = fixed64_1dp;
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// Construct a fixed point number. For example, to create the value 3.65 you
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// would write FIXED_2DP(3,65)
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#define FIXED_XDP(x, whole, fraction) ((whole) * (10 * (x)) + (fraction))
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#define FIXED_1DP(whole, fraction) FIXED_XDP(1, whole, fraction)
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#define FIXED_2DP(whole, fraction) FIXED_XDP(10, whole, fraction)
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// For a user defined floating point literal, the parameter type must be a
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// `long double` which is problematic on ppc64el, as the architecture uses a
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// pair of `doubles` to represent that type. This cannot be converted to a
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// `constexpr`. As a workaround, statically cast the `long double` down to a
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// `double`. All of the uses of _GBP constants fit just fine, and if anyone
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// really tries to use a gigantic constant that can't fit in a double, they are
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// probably going to be breaking other things anyways.
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// For more details, see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26374
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constexpr money64 operator"" _GBP(long double money) noexcept
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{
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return static_cast<double>(money) * 10;
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}
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constexpr money64 ToMoney64FromGBP(int32_t money) noexcept
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{
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return money * 10;
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}
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constexpr money64 ToMoney64FromGBP(int64_t money) noexcept
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{
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return money * 10;
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}
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constexpr money64 ToMoney64FromGBP(double money) noexcept
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{
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return money * 10;
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}
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#define MONEY16_UNDEFINED static_cast<money16>(static_cast<uint16_t>(0xFFFF))
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#define MONEY32_UNDEFINED (static_cast<money32>(0x80000000))
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#define MONEY64_UNDEFINED (static_cast<money64>(0x8000000000000000))
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constexpr money16 ToMoney16(money64 value)
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{
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return value == MONEY64_UNDEFINED ? MONEY16_UNDEFINED : value;
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}
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constexpr money64 ToMoney64(money32 value)
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{
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return value == MONEY32_UNDEFINED ? MONEY64_UNDEFINED : value;
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}
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constexpr money64 ToMoney64(money16 value)
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{
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return value == MONEY16_UNDEFINED ? MONEY64_UNDEFINED : value;
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}
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// Note: Only valid for 5 decimal places.
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constexpr int32_t operator"" _mph(long double speedMph)
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{
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uint32_t wholeNumber = speedMph;
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uint64_t fraction = (speedMph - wholeNumber) * 100000;
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return wholeNumber << 16 | ((fraction << 16) / 100000);
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}
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using StringId = uint16_t;
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#define SafeFree(x) \
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do \
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{ \
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free(x); \
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(x) = nullptr; \
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} while (false)
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#define SafeDelete(x) \
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do \
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{ \
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delete (x); \
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(x) = nullptr; \
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} while (false)
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#define SafeDeleteArray(x) \
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do \
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{ \
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delete[](x); \
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(x) = nullptr; \
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} while (false)
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#define abstract = 0
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#if defined(__GNUC__) && (defined(__x86_64__) || defined(__i386__))
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# define OPENRCT2_X86
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#elif defined(_MSC_VER) && (_MSC_VER >= 1500) && (defined(_M_X64) || defined(_M_IX86)) // VS2008
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# define OPENRCT2_X86
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#endif
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#if defined(__i386__) || defined(_M_IX86)
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# define PLATFORM_X86
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#endif
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#if defined(__LP64__) || defined(_WIN64)
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# define PLATFORM_64BIT
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#else
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# define PLATFORM_32BIT
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#endif
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// C99's restrict keywords guarantees the pointer in question, for the whole of its lifetime,
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// will be the only way to access a given memory region. In other words: there is no other pointer
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// aliasing the same memory area. Using it lets compiler generate better code. If your compiler
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// does not support it, feel free to drop it, at some performance hit.
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#ifdef _MSC_VER
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# define RESTRICT __restrict
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#else
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# define RESTRICT __restrict__
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#endif
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#define assert_struct_size(x, y) static_assert(sizeof(x) == (y), "Improper struct size")
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#ifdef PLATFORM_X86
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# ifndef FASTCALL
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# ifdef __GNUC__
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# define FASTCALL __attribute__((fastcall))
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# elif defined(_MSC_VER)
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# define FASTCALL __fastcall
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# else
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# pragma message "Not using fastcall calling convention, please check your compiler support"
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# define FASTCALL
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# endif
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# endif // FASTCALL
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#else // PLATFORM_X86
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# define FASTCALL
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#endif // PLATFORM_X86
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