diff options
Diffstat (limited to 'src/common.cpp')
| -rw-r--r-- | src/common.cpp | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/src/common.cpp b/src/common.cpp deleted file mode 100644 index d1ca1a8db..000000000 --- a/src/common.cpp +++ /dev/null @@ -1,250 +0,0 @@ -#define GB_NO_DEFER -#define GB_IMPLEMENTATION -#include "gb/gb.h" - -typedef _Bool bool; - -gbAllocator heap_allocator(void) { - return gb_heap_allocator(); -} - -#include "string.cpp" -#include "array.cpp" - -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; -} - -// Hasing -typedef enum HashKeyKind { - HashKey_Default, - HashKey_String, - HashKey_Pointer, -} HashKeyKind; - -typedef struct HashKey { - HashKeyKind kind; - u64 key; - union { - String string; // if String, s.len > 0 - void * ptr; - }; -} HashKey; - -gb_inline HashKey hashing_proc(void const *data, isize len) { - HashKey h = {HashKey_Default}; - h.kind = HashKey_Default; - // h.key = gb_murmur64(data, len); - h.key = gb_fnv64a(data, len); - return h; -} - -gb_inline HashKey hash_string(String s) { - HashKey h = hashing_proc(s.text, s.len); - h.kind = HashKey_String; - h.string = s; - return h; -} - -gb_inline HashKey hash_pointer(void *ptr) { - HashKey h = {HashKey_Default}; - h.key = cast(u64)cast(uintptr)ptr; - h.ptr = ptr; - h.kind = HashKey_Default; - return h; -} - -bool hash_key_equal(HashKey a, HashKey b) { - if (a.key == b.key) { - // NOTE(bill): If two string's hashes collide, compare the strings themselves - if (a.kind == HashKey_String) { - if (b.kind == HashKey_String) { - return str_eq(a.string, b.string); - } - return false; - } - return true; - } - return false; -} - -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_FUNC map_string_ -#define MAP_NAME MapString -#include "map.c" - -#define MAP_TYPE bool -#define MAP_FUNC map_bool_ -#define MAP_NAME MapBool -#include "map.c" - -#define MAP_TYPE isize -#define MAP_FUNC map_isize_ -#define MAP_NAME MapIsize -#include "map.c" |