init

3 files changed, 162 insertions, 0 deletions

diff --git a/omni/BUILD.bazel b/omni/BUILD.bazel
new file mode 100644
index 0000000..8e29939
--- /dev/null
+++ b/omni/BUILD.bazel
@@ -0,0 +1,10 @@
+load("@rules_cc//cc:defs.bzl", "cc_library")
+
+cc_library(
+    name = "omni_impl",
+    hdrs = [
+        ":int.h",
+        ":platform.h"
+    ],
+    visibility = ["//visibility:public"]
+)
diff --git a/omni/int.h b/omni/int.h
new file mode 100644
index 0000000..ce27730
--- /dev/null
+++ b/omni/int.h
@@ -0,0 +1,56 @@
+#ifndef OMNI_INT_H
+#define OMNI_INT_H
+
+#include <stdint.h>
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+typedef int8_t i8;
+typedef int16_t i16;
+typedef int32_t i32;
+typedef int64_t i64;
+
+typedef float f32;
+typedef double f64;
+
+#define U8_MAX UINT8_MAX
+#define U16_MAX UINT16_MAX
+#define U32_MAX UINT32_MAX
+#define U64_MAX UINT64_MAX
+
+#define I8_MIN INT8_MIN
+#define I16_MIN INT16_MIN
+#define I32_MIN INT32_MIN
+#define I64_MIN INT64_MIN
+
+#define I8_MAX INT8_MAX
+#define I16_MAX INT16_MAX
+#define I32_MAX INT32_MAX
+#define I64_MAX INT64_MAX
+
+#if UINTPTR_MAX == UINT64_MAX
+typedef u64 usize;
+typedef i64 isize;
+
+#define USIZE_MAX UINT64_MAX
+
+#define ISIZE_MIN INT64_MIN
+#define ISIZE_MAX INT64_MAX
+
+#elif UINTPTR_MAX == UINT32_MAX
+typedef u32 usize;
+typedef i32 isize;
+
+#define USIZE_MAX UINT32_MAX
+
+#define ISIZE_MIN INT32_MIN
+#define ISIZE_MAX INT32_MAX
+
+#else
+#error "target is not supported"
+#endif
+
+#endif
diff --git a/omni/platform.h b/omni/platform.h
new file mode 100644
index 0000000..593b79c
--- /dev/null
+++ b/omni/platform.h
@@ -0,0 +1,96 @@
+#ifndef OMNI_PLATFORM_H
+#define OMNI_PLATFORM_H
+
+/*
+ *
+ * COMPILER INFORMATION
+ *
+ */
+
+#undef OMNI_CC_MSVC
+#undef OMNI_CC_GNU
+
+#if defined(_MSC_VER)
+#define OMNI_CC_MSVC
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#define OMNI_CC_GNU
+#endif
+
+
+#if !defined(OMNI_CC_GNU) && !defined(OMNI_CC_MSVC)
+#error "compiler not supported"
+#endif
+
+/*
+ *
+ * TARGET ARCHITECTURE INFORMATION
+ *
+ */
+
+#undef OMNI_ARCH_X86
+#undef OMNI_ARCH_ARM
+#undef OMNI_ARCH_64BIT
+#undef OMNI_ARCH_32BIT
+
+#if defined(__i386__) || defined(_M_IX86)
+#define OMNI_ARCH_X86
+#define OMNI_ARCH_32BIT
+#endif
+
+#if defined(__x86_64__) || defined(_M_X64)
+#define OMNI_ARCH_X86
+#define OMNI_ARCH_64BIT
+#endif
+
+#if defined(__arm__) || defined(_M_ARM)
+#define OMNI_ARCH_ARM
+#define OMNI_ARCH_32BIT
+#endif
+
+#if defined(__aarch64__) || defined(_M_ARM64) || defined(__arm64__)
+#define OMNI_ARCH_ARM
+#define OMNI_ARCH_64BIT
+#endif
+
+#if !defined(OMNI_ARCH_X86) && !defined(OMNI_ARCH_ARM)
+#error "target architecture is not supported"
+#endif
+
+/*
+ *
+ * TARGET OS INFORMATION
+ *
+ */
+
+#undef OMNI_OS_WIN
+#undef OMNI_OS_LINUX
+#undef OMNI_OS_FREEBSD
+#undef OMNI_OS_OSX
+
+#if defined(_WIN32) || defined(_WIN64)
+#define OMNI_OS_WIN
+#endif
+
+#if defined(__linux__)
+#define OMNI_OS_LINUX
+#define OMNI_OS_UNIX
+#endif
+
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#define OMNI_OS_FREEBSD
+#define OMNI_OS_UNIX
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+#define OMNI_OS_OSX
+#define OMNI_OS_UNIX
+#endif
+
+#if !defined(OMNI_OS_UNIX) && !defined(OMNI_OS_WIN)
+#error "target os not supported"
+#endif
+
+#endif
+