Numpty forgot to add .c files

1 files changed, 195 insertions, 0 deletions

diff --git a/src/common.c b/src/common.c
new file mode 100644
index 000000000..9b70722d1
--- /dev/null
+++ b/src/common.c
@@ -0,0 +1,195 @@
+#define GB_NO_DEFER
+#define GB_IMPLEMENTATION
+#include "gb/gb.h"
+
+gbAllocator heap_allocator(void) {
+	return gb_heap_allocator();
+}
+
+#include "string.c"
+#include "array.c"
+
+gb_global String global_module_path = {0};
+gb_global bool global_module_path_set = false;
+
+
+String get_module_dir() {
+	if (global_module_path_set) {
+		return global_module_path;
+	}
+
+	Array(wchar_t) path_buf;
+	array_init_count(&path_buf, heap_allocator(), 300);
+
+	isize len = 0;
+	for (;;) {
+		len = GetModuleFileNameW(NULL, &path_buf.e[0], path_buf.count);
+		if (len == 0) {
+			return make_string(NULL, 0);
+		}
+		if (len < path_buf.count) {
+			break;
+		}
+		array_resize(&path_buf, 2*path_buf.count + 300);
+	}
+
+	gbTempArenaMemory tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
+
+	wchar_t *text = gb_alloc_array(string_buffer_allocator, wchar_t, len+1);
+
+	GetModuleFileNameW(NULL, text, len);
+	String path = string16_to_string(heap_allocator(), make_string16(text, len));
+	for (isize i = path.len-1; i >= 0; i--) {
+		u8 c = path.text[i];
+		if (c == '/' || c == '\\') {
+			break;
+		}
+		path.len--;
+	}
+
+	global_module_path = path;
+	global_module_path_set = true;
+
+	gb_temp_arena_memory_end(tmp);
+
+	array_free(&path_buf);
+
+	return path;
+}
+
+String path_to_fullpath(gbAllocator a, String s) {
+	gbTempArenaMemory tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
+	String16 string16 = string_to_string16(string_buffer_allocator, s);
+	String result = {0};
+
+	DWORD len = GetFullPathNameW(string16.text, 0, NULL, NULL);
+	if (len != 0) {
+		wchar_t *text = gb_alloc_array(string_buffer_allocator, wchar_t, len+1);
+		GetFullPathNameW(string16.text, len, text, NULL);
+		text[len] = 0;
+		result = string16_to_string(a, make_string16(text, len));
+	}
+	gb_temp_arena_memory_end(tmp);
+	return result;
+}
+
+i64 next_pow2(i64 n) {
+	if (n <= 0) {
+		return 0;
+	}
+	n--;
+	n |= n >> 1;
+	n |= n >> 2;
+	n |= n >> 4;
+	n |= n >> 8;
+	n |= n >> 16;
+	n |= n >> 32;
+	n++;
+	return n;
+}
+
+i64 prev_pow2(i64 n) {
+	if (n <= 0) {
+		return 0;
+	}
+	n |= n >> 1;
+	n |= n >> 2;
+	n |= n >> 4;
+	n |= n >> 8;
+	n |= n >> 16;
+	n |= n >> 32;
+	return n - (n >> 1);
+}
+
+i16 f32_to_f16(f32 value) {
+	union { u32 i; f32 f; } v;
+	i32 i, s, e, m;
+
+	v.f = value;
+	i = (i32)v.i;
+
+	s =  (i >> 16) & 0x00008000;
+	e = ((i >> 23) & 0x000000ff) - (127 - 15);
+	m =   i        & 0x007fffff;
+
+
+	if (e <= 0) {
+		if (e < -10) return cast(i16)s;
+		m = (m | 0x00800000) >> (1 - e);
+
+		if (m & 0x00001000)
+			m += 0x00002000;
+
+		return cast(i16)(s | (m >> 13));
+	} else if (e == 0xff - (127 - 15)) {
+		if (m == 0) {
+			return cast(i16)(s | 0x7c00); /* NOTE(bill): infinity */
+		} else {
+			/* NOTE(bill): NAN */
+			m >>= 13;
+			return cast(i16)(s | 0x7c00 | m | (m == 0));
+		}
+	} else {
+		if (m & 0x00001000) {
+			m += 0x00002000;
+			if (m & 0x00800000) {
+				m = 0;
+				e += 1;
+			}
+		}
+
+		if (e > 30) {
+			float volatile f = 1e12f;
+			int j;
+			for (j = 0; j < 10; j++)
+				f *= f; /* NOTE(bill): Cause overflow */
+
+			return cast(i16)(s | 0x7c00);
+		}
+
+		return cast(i16)(s | (e << 10) | (m >> 13));
+	}
+}
+
+
+
+#define for_array(index_, array_) for (isize index_ = 0; index_ < (array_).count; index_++)
+
+
+// Doubly Linked Lists
+
+#define DLIST_SET(curr_element, next_element)  do { \
+	(curr_element)->next = (next_element);             \
+	(curr_element)->next->prev = (curr_element);       \
+	(curr_element) = (curr_element)->next;             \
+} while (0)
+
+#define DLIST_APPEND(root_element, curr_element, next_element) do { \
+	if ((root_element) == NULL) { \
+		(root_element) = (curr_element) = (next_element); \
+	} else { \
+		DLIST_SET(curr_element, next_element); \
+	} \
+} while (0)
+
+////////////////////////////////////////////////////////////////
+//
+// Generic Data Structures
+//
+////////////////////////////////////////////////////////////////
+
+
+#define MAP_TYPE String
+#define MAP_PROC map_string_
+#define MAP_NAME MapString
+#include "map.c"
+
+#define MAP_TYPE bool
+#define MAP_PROC map_bool_
+#define MAP_NAME MapBool
+#include "map.c"
+
+#define MAP_TYPE isize
+#define MAP_PROC map_isize_
+#define MAP_NAME MapIsize
+#include "map.c"