200 lines
4.1 KiB
C
200 lines
4.1 KiB
C
#ifndef CORE_H
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#define CORE_H
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#include <stdint.h>
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/* ---- Switches ------------------------------------------------------- */
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#ifndef BUILD_DEBUG
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#define BUILD_DEBUG 1
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#endif
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#ifndef BUILD_INTERNAL
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#define BUILD_INTERNAL 1
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#endif
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/* ---- Environment Detection ------------------------------------------ */
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/* Architecture */
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#ifndef ARCHITECTURE_X64
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#define ARCHITECTURE_X64 0
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#endif
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#ifndef ARCHITECTURE_X86
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#define ARCHITECTURE_X86 0
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#endif
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#ifndef ARCHITECTURE_ARM64
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#define ARCHITECTURE_ARM64 0
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#endif
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#ifndef ARCHITECTURE_ARM32
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#define ARCHITECTURE_ARM32 0
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#endif
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#if defined(__x86_64__) || defined(__x86_64) || defined(__amd64__) || defined(__amd64) || defined(_M_AMD64)
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#undef ARCHITECTURE_X64
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#define ARCHITECTURE_X64 1
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#elif defined(i386) || defined(__i386) || defined(__i386__) || defined(_M_I86)
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#undef ARCHITECTURE_X86
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#define ARCHITECTURE_X86 1
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#elif defined(__aarch64__)
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#undef ARCHITECTURE_ARM64
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#define ARCHITECTURE_ARM64 1
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#elif defined(__arm__)
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#undef ARCHITECTURE_ARM32
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#define ARCHITECTURE_ARM32 1
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#else
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#error Unknown architecture . . .
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#endif
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/* OS */
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#ifndef OS_WINDOWS
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#define OS_WINDOWS 0
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#endif
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#ifndef OS_MACOS
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#define OS_MACOS 0
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#endif
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#ifndef OS_LINUX
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#define OS_LINUX 0
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#endif
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#if defined(_WIN32)
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#undef OS_WINDOWS
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#define OS_WINDOWS 1
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#elif defined(__APPLE__) && defined(__MACH__)
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#undef OS_MACOS
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#define OS_MACOS 1
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#elif defined(__linux__)
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#undef OS_LINUX
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#define OS_LINUX 1
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#else
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#error Unknown operating system . . .
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#endif
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/* Compiler */
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#ifndef COMPILER_MSVC
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#define COMPILER_MSVC 0
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#endif
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#ifndef COMPILER_CLANG
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#define COMPILER_CLANG 0
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#endif
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#ifndef COMPILER_GCC
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#define COMPILER_GCC 0
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#endif
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#if _MSC_VER
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#undef COMPILER_MSVC
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#define COMPILER_MSVC 1
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#elif __clang__
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#undef COMPILER_CLANG
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#define COMPILER_CLANG 1
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#elif __GNUC__
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#undef COMPILER_GCC
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#define COMPILER_GCC 1
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#else
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#error Unknown compiler . . .
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#endif
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/* ---- Types ---------------------------------------------------------- */
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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typedef uint8_t U8;
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typedef uint16_t U16;
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typedef uint32_t U32;
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typedef uint64_t U64;
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typedef int8_t S8;
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typedef int16_t S16;
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typedef int32_t S32;
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typedef int64_t S64;
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typedef S8 B8;
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typedef S16 B16;
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typedef S32 B32;
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typedef S64 B64;
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typedef float F32;
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typedef double F64;
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/* ---- Units ---------------------------------------------------------- */
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#define KB(n) (((U64)(n)) << 10)
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#define MB(n) (((U64)(n)) << 20)
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#define GB(n) (((U64)(n)) << 30)
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#define TB(n) (((U64)(n)) << 40)
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/* ---- Clamps, Min/Max ------------------------------------------------ */
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#define MIN(A,B) (((A) < (B)) ? (A) : (B))
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#define MAX(A,B) (((A) > (B)) ? (A) : (B))
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#define CLAMP_TOP(A, X) Min(A, X)
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#define CLAMP_BOT(X, B) Max(X, B)
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#define CLAMP(A, X, B) (((X) < (A)) ? (A) : ((X) > (B)) ? (B) : (X))
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/* ---- Asserts -------------------------------------------------------- */
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#if COMPILER_CLANG || COMPILER_GCC
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#define TRAP() __builtin_trap()
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#elif COMPILER_MSVC
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#define TRAP() __debugbreak()
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#else
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#error Unknow debug break for the compiler . . .
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#endif
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#define ASSERT_ALWAYS(x) do { if(!(x)) { TRAP(); } } while(0)
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#if BUILD_DEBUG
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#define ASSERT(x) ASSERT_ALWAYS(x)
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#else
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#define ASSERT(x) (void)(x)
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#endif
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/* ---- Helper Macros -------------------------------------------------- */
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#define STRINGIFY_(S) #S
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#define STRINGIFY(S) STRINGIFY_(S)
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#define GLUE_(A, B) A##B
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#define GLUE(A, B) GLUE_(A,B)
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
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#define SWAP(T, a, b) do { T t__ = a; a = b; b = t__; } while(0)
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/* ---- Constants ------------------------------------------------------ */
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#define PI 3.14159265358979323846
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#define MAX_U64 (U64)0xffffffffffffffff
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#define MAX_U32 (U32)0xffffffff
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#define MAX_U16 (U16)0xffff
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#define MAX_U8 (U8)0xff
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#define MIN_U64 (U64)0x0
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#define MIN_U32 (U32)0x0
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#define MIN_U16 (U16)0x0
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#define MIN_U8 (U8)0x0
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#define MAX_S64 (S64)0x7fffffffffffffff
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#define MAX_S32 (S32)0x7fffffff
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#define MAX_S16 (S16)0x7fff
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#define MAX_S8 (S8)0x7f
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#define MIN_S64 (S64)0x8000000000000000
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#define MIN_S32 (S32)0x80000000
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#define MIN_S16 (S16)0x8000
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#define MIN_S8 (S8)0x80
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#endif
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