4coder/platform_mac/mac_4ed_functions.mm

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/* macOS System/Graphics/Font API Implementations */
/********************/
/* System API */
/********************/
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////////////////////////////////
function
system_get_path_sig(){
String_Const_u8 result = {};
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switch (path_code){
case SystemPath_CurrentDirectory:
{
char *working_dir = getcwd(NULL, 0);
u64 working_dir_length = cstring_length(working_dir);
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// TODO(yuval): Maybe use push_string_copy instead
u8 *out = push_array(arena, u8, working_dir_length);
block_copy(out, working_dir, working_dir_length);
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free(working_dir);
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result = SCu8(out, working_dir_length);
} break;
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case SystemPath_Binary:
{
local_persist b32 has_stashed_4ed_path = false;
if (!has_stashed_4ed_path){
local_const u32 binary_path_capacity = PATH_MAX;
u8 *memory = (u8*)system_memory_allocate(binary_path_capacity, file_name_line_number_lit_u8);
pid_t pid = getpid();
i32 size = proc_pidpath(pid, memory, binary_path_capacity);
Assert(size < binary_path_capacity);
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mac_vars.binary_path = SCu8(memory, size);
mac_vars.binary_path = string_remove_last_folder(mac_vars.binary_path);
mac_vars.binary_path.str[mac_vars.binary_path.size] = 0;
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has_stashed_4ed_path = true;
}
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result = push_string_copy(arena, mac_vars.binary_path);
} break;
}
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return(result);
}
function
system_get_canonical_sig(){
NSString *path_ns_str =
[[NSString alloc] initWithBytes:name.data length:name.size encoding:NSUTF8StringEncoding];
NSString *standardized_path_ns_str = [path_ns_str stringByStandardizingPath];
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String_Const_u8 standardized_path = SCu8((u8*)[standardized_path_ns_str UTF8String],[standardized_path_ns_str lengthOfBytesUsingEncoding:NSUTF8StringEncoding]);
String_Const_u8 result = push_string_copy(arena, standardized_path);
[path_ns_str release];
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return(result);
}
////////////////////////////////
function File_Attributes
mac_get_file_attributes(struct stat file_stat) {
File_Attributes result;
result.size = file_stat.st_size;
result.last_write_time = file_stat.st_mtimespec.tv_sec;
result.flags = 0;
if (S_ISDIR(file_stat.st_mode)) {
result.flags |= FileAttribute_IsDirectory;
}
return(result);
}
function inline File_Attributes
mac_file_attributes_from_path(char *path) {
File_Attributes result = {};
struct stat file_stat;
if (stat(path, &file_stat) == 0){
result = mac_get_file_attributes(file_stat);
}
return(result);
}
function inline File_Attributes
mac_file_attributes_from_fd(i32 fd) {
File_Attributes result = {};
struct stat file_stat;
if (fstat(fd, &file_stat) == 0){
result = mac_get_file_attributes(file_stat);
}
return(result);
}
function
system_get_file_list_sig(){
File_List result = {};
u8 *c_directory = push_array(arena, u8, directory.size + 1);
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block_copy(c_directory, directory.str, directory.size);
c_directory[directory.size] = 0;
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DIR *dir = opendir((char*)c_directory);
if (dir){
File_Info* first = 0;
File_Info* last = 0;
i32 count = 0;
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for (struct dirent *entry = readdir(dir);
entry;
entry = readdir(dir)){
char *c_file_name = entry->d_name;
String_Const_u8 file_name = SCu8(c_file_name);
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if (string_match(file_name, string_u8_litexpr(".")) || string_match(file_name, string_u8_litexpr(".."))){
continue;
}
File_Info *info = push_array(arena, File_Info, 1);
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sll_queue_push(first, last, info);
count += 1;
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info->file_name = push_string_copy(arena, file_name);
// NOTE(yuval): Get file attributes
{
Temp_Memory temp = begin_temp(arena);
b32 append_slash = false;
u64 file_path_size = directory.size + file_name.size;
if (string_get_character(directory, directory.size - 1) != '/'){
append_slash = true;
file_path_size += 1;
}
char *file_path = push_array(arena, char, file_path_size + 1);
char *file_path_at = file_path;
block_copy(file_path_at, directory.str, directory.size);
file_path_at += directory.size;
if (append_slash){
*file_path_at = '/';
file_path_at += 1;
}
block_copy(file_path_at, file_name.str, file_name.size);
file_path_at += file_name.size;
*file_path_at = 0;
info->attributes = mac_file_attributes_from_path(file_path);
end_temp(temp);
}
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}
closedir(dir);
result.infos = push_array(arena, File_Info*, count);
result.count = count;
i32 index = 0;
for (File_Info *node = first;
node != 0;
node = node->next){
result.infos[index] = node;
index += 1;
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}
}
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return(result);
}
function
system_quick_file_attributes_sig(){
Temp_Memory temp = begin_temp(scratch);
char *c_file_name = push_array(scratch, char, file_name.size + 1);
block_copy(c_file_name, file_name.str, file_name.size);
c_file_name[file_name.size] = 0;
File_Attributes result = mac_file_attributes_from_path(c_file_name);
end_temp(temp);
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return(result);
}
function inline Plat_Handle
mac_to_plat_handle(i32 fd){
Plat_Handle result = *(Plat_Handle*)(&fd);
return(result);
}
function inline i32
mac_to_fd(Plat_Handle handle){
i32 result = *(i32*)(&handle);
return(result);
}
function
system_load_handle_sig(){
b32 result = false;
i32 fd = open(file_name, O_RDONLY);
if ((fd != -1) && (fd != 0)) {
*out = mac_to_plat_handle(fd);
result = true;
}
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return(result);
}
function
system_load_attributes_sig(){
i32 fd = mac_to_fd(handle);
File_Attributes result = mac_file_attributes_from_fd(fd);
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return(result);
}
function
system_load_file_sig(){
i32 fd = mac_to_fd(handle);
do{
ssize_t bytes_read = read(fd, buffer, size);
if (bytes_read == -1){
if (errno != EINTR){
// NOTE(yuval): An error occured while reading from the file descriptor
break;
}
} else{
size -= bytes_read;
buffer += bytes_read;
}
} while (size > 0);
b32 result = (size == 0);
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return(result);
}
function
system_load_close_sig(){
b32 result = true;
i32 fd = mac_to_fd(handle);
if (close(fd) == -1){
// NOTE(yuval): An error occured while close the file descriptor
result = false;
}
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return(result);
}
function
system_save_file_sig(){
File_Attributes result = {};
i32 fd = open(file_name, O_WRONLY | O_TRUNC | O_CREAT, 00640);
if (fd != -1) {
do{
ssize_t bytes_written = write(fd, data.str, data.size);
if (bytes_written == -1){
if (errno != EINTR){
// NOTE(yuval): An error occured while writing to the file descriptor
break;
}
} else{
data.size -= bytes_written;
data.str += bytes_written;
}
} while (data.size > 0);
if (data.size == 0) {
result = mac_file_attributes_from_fd(fd);
}
close(fd);
}
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return(result);
}
////////////////////////////////
function inline System_Library
mac_to_system_library(void *dl_handle){
System_Library result = *(System_Library*)(&dl_handle);
return(result);
}
function inline void*
mac_to_dl_handle(System_Library system_lib){
void *result = *(void**)(&system_lib);
return(result);
}
function
system_load_library_sig(){
b32 result = false;
void *lib = 0;
// NOTE(yuval): Open library handle
{
Temp_Memory temp = begin_temp(scratch);
char *c_file_name = push_array(scratch, char, file_name.size + 1);
block_copy(c_file_name, file_name.str, file_name.size);
c_file_name[file_name.size] = 0;
lib = dlopen(c_file_name, RTLD_LAZY | RTLD_GLOBAL);
end_temp(temp);
}
if (lib){
*out = mac_to_system_library(lib);
result = true;
}
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return(result);
}
function
system_release_library_sig(){
void *lib = mac_to_dl_handle(handle);
i32 rc = dlclose(lib);
b32 result = (rc == 0);
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return(result);
}
function
system_get_proc_sig(){
void *lib = mac_to_dl_handle(handle);
Void_Func *result = (Void_Func*)dlsym(lib, proc_name);
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return(result);
}
////////////////////////////////
function
system_now_time_sig(){
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u64 now = mach_absolute_time();
// NOTE(yuval): Now time nanoseconds conversion
f64 now_nano = (f64)((f64)now *
((f64)mac_vars.timebase_info.numer /
(f64)mac_vars.timebase_info.denom));
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// NOTE(yuval): Conversion to useconds
u64 result = (u64)(now_nano * 1.0E-3);
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return(result);
}
function
system_wake_up_timer_create_sig(){
Mac_Object *object = mac_alloc_object(MacObjectKind_Timer);
dll_insert(&mac_vars.timer_objects, &object->node);
object->timer = nil;
Plat_Handle result = mac_to_plat_handle(object);
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return(result);
}
function
system_wake_up_timer_release_sig(){
Mac_Object *object = mac_to_object(handle);
if (object->kind == MacObjectKind_Timer){
if ((object->timer != nil) && [object->timer isValid]) {
[object->timer invalidate];
mac_free_object(object);
}
}
}
function
system_wake_up_timer_set_sig(){
Mac_Object *object = mac_to_object(handle);
if (object->kind == MacObjectKind_Timer){
f64 time_seconds = ((f64)time_milliseconds / 1000.0);
object->timer = [NSTimer scheduledTimerWithTimeInterval:time_seconds
target:mac_vars.view
selector:@selector(request_display)
userInfo:nil repeats:NO];
}
}
function
system_signal_step_sig(){
#if 0
if (!mac_vars.step_requested){
[NSTimer scheduledTimerWithTimeInterval:0.0
target:mac_vars.view
selector:@selector(request_display)
userInfo:nil repeats:NO];
mac_vars.step_requested = true;
}
#else
mac_vars.step_requested = true;
dispatch_async(dispatch_get_main_queue(),
^{
[NSTimer scheduledTimerWithTimeInterval:0.0
target:mac_vars.view
selector:@selector(request_display)
userInfo:nil repeats:NO];
});
#endif
}
function
system_sleep_sig(){
u64 nanoseconds = (microseconds * Thousand(1));
u64 abs_sleep_time = (u64)((f64)nanoseconds *
((f64)mac_vars.timebase_info.denom /
(f64)mac_vars.timebase_info.numer));
u64 now = mach_absolute_time();
mach_wait_until(now + abs_sleep_time);
}
////////////////////////////////
function
system_cli_call_sig(){
b32 result = false;
int pipe_fds[2];
if (pipe(pipe_fds) == -1){
perror("system_cli_call: pipe");
return(false);
}
pid_t child_pid = fork();
if (child_pid == -1){
perror("system_cli_call: fork");
return(false);
}
enum { PIPE_FD_READ, PIPE_FD_WRITE };
if (child_pid == 0){
// NOTE(yuval): Child Process
close(pipe_fds[PIPE_FD_READ]);
dup2(pipe_fds[PIPE_FD_WRITE], STDOUT_FILENO);
dup2(pipe_fds[PIPE_FD_WRITE], STDERR_FILENO);
if (chdir(path) == -1){
perror("system_cli_call: chdir");
exit(1);
}
char* argv[] = {"sh", "-c", script, 0};
if (execv("/bin/sh", argv) == -1){
perror("system_cli_call: execv");
}
exit(1);
} else{
// NOTE(yuval): Parent Process
close(pipe_fds[PIPE_FD_WRITE]);
*(pid_t*)&cli_out->proc = child_pid;
*(int*)&cli_out->out_read = pipe_fds[PIPE_FD_READ];
*(int*)&cli_out->out_write = pipe_fds[PIPE_FD_WRITE];
mac_vars.running_cli += 1;
}
return(true);
}
function
system_cli_begin_update_sig(){
// NOTE(yuval): Nothing to do here.
}
function
system_cli_update_step_sig(){
int pipe_read_fd = *(int*)&cli->out_read;
fd_set fds;
FD_ZERO(&fds);
FD_SET(pipe_read_fd, &fds);
struct timeval tv = {};
size_t space_left = max;
char* ptr = dest;
while (space_left > 0 && (select(pipe_read_fd + 1, &fds, NULL, NULL, &tv) == 1)){
ssize_t num = read(pipe_read_fd, ptr, space_left);
if (num == -1){
perror("system_cli_update_step: read");
} else if (num == 0){
// NOTE(inso): EOF
break;
} else{
ptr += num;
space_left -= num;
}
}
*amount = (ptr - dest);
b32 result = ((ptr - dest) > 0);
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return(result);
}
function
system_cli_end_update_sig(){
b32 close_me = false;
pid_t pid = *(pid_t*)&cli->proc;
int status;
if (pid && (waitpid(pid, &status, WNOHANG) > 0)){
cli->exit = WEXITSTATUS(status);
close(*(int*)&cli->out_read);
close(*(int*)&cli->out_write);
mac_vars.running_cli -= 1;
close_me = true;
}
return(close_me);
}
////////////////////////////////
function
system_open_color_picker_sig(){
NotImplemented;
}
function
system_get_screen_scale_factor_sig(){
f32 result = mac_vars.screen_scale_factor;
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return(result);
}
////////////////////////////////
function void*
mac_thread_wrapper(void *ptr){
Mac_Object *object = (Mac_Object*)ptr;
Thread_Function *proc = object->thread.proc;
void *object_ptr = object->thread.ptr;
pthread_mutex_lock(&mac_vars.thread_launch_mutex);
{
mac_vars.waiting_for_launch = false;
pthread_cond_signal(&mac_vars.thread_launch_cv);
}
pthread_mutex_unlock(&mac_vars.thread_launch_mutex);
proc(object_ptr);
return(0);
}
function
system_thread_launch_sig(){
Mac_Object *object = mac_alloc_object(MacObjectKind_Thread);
object->thread.proc = proc;
object->thread.ptr = ptr;
pthread_mutex_lock(&mac_vars.thread_launch_mutex);
{
mac_vars.waiting_for_launch = true;
pthread_create(&object->thread.thread, 0, mac_thread_wrapper, object);
while (mac_vars.waiting_for_launch){
pthread_cond_wait(&mac_vars.thread_launch_cv, &mac_vars.thread_launch_mutex);
}
}
pthread_mutex_unlock(&mac_vars.thread_launch_mutex);
System_Thread result = mac_to_plat_handle(object);
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return(result);
}
function
system_thread_join_sig(){
Mac_Object *object = mac_to_object(thread);
if (object->kind == MacObjectKind_Thread){
pthread_join(object->thread.thread, 0);
}
}
function
system_thread_free_sig(){
Mac_Object* object = mac_to_object(thread);
if (object->kind == MacObjectKind_Thread){
mac_free_object(object);
}
}
function
system_thread_get_id_sig(){
pthread_t id = pthread_self();
i32 result = *(i32*)(&id);
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return(result);
}
function
system_mutex_make_sig(){
Mac_Object *object = mac_alloc_object(MacObjectKind_Mutex);
mac_init_recursive_mutex(&object->mutex);
System_Mutex result = mac_to_plat_handle(object);
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return(result);
}
function
system_mutex_acquire_sig(){
Mac_Object *object = mac_to_object(mutex);
if (object->kind == MacObjectKind_Mutex){
pthread_mutex_lock(&object->mutex);
}
}
function
system_mutex_release_sig(){
Mac_Object *object = mac_to_object(mutex);
if (object->kind == MacObjectKind_Mutex){
pthread_mutex_unlock(&object->mutex);
}
}
function
system_mutex_free_sig(){
Mac_Object *object = mac_to_object(mutex);
if (object->kind == MacObjectKind_Mutex){
pthread_mutex_destroy(&object->mutex);
mac_free_object(object);
}
}
function
system_acquire_global_frame_mutex_sig(){
if (tctx->kind == ThreadKind_AsyncTasks ||
tctx->kind == ThreadKind_MainCoroutine){
system_mutex_acquire(mac_vars.global_frame_mutex);
}
}
function
system_release_global_frame_mutex_sig(){
if (tctx->kind == ThreadKind_AsyncTasks ||
tctx->kind == ThreadKind_MainCoroutine){
system_mutex_release(mac_vars.global_frame_mutex);
}
}
function
system_condition_variable_make_sig(){
Mac_Object *object = mac_alloc_object(MacObjectKind_CV);
pthread_cond_init(&object->cv, 0);
System_Condition_Variable result = mac_to_plat_handle(object);
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return(result);
}
function
system_condition_variable_wait_sig(){
Mac_Object *object_cv = mac_to_object(cv);
Mac_Object *object_mutex = mac_to_object(mutex);
if ((object_cv->kind == MacObjectKind_CV) && (object_mutex->kind == MacObjectKind_Mutex)){
pthread_cond_wait(&object_cv->cv, &object_mutex->mutex);
}
}
function
system_condition_variable_signal_sig(){
Mac_Object *object = mac_to_object(cv);
if (object->kind == MacObjectKind_CV){
pthread_cond_signal(&object->cv);
}
}
function
system_condition_variable_free_sig(){
Mac_Object *object = mac_to_object(cv);
if (object->kind == MacObjectKind_CV){
pthread_cond_destroy(&object->cv);
mac_free_object(object);
}
}
////////////////////////////////
struct Memory_Annotation_Tracker_Node{
Memory_Annotation_Tracker_Node *next;
Memory_Annotation_Tracker_Node *prev;
String_Const_u8 location;
u64 size;
};
struct Memory_Annotation_Tracker{
Memory_Annotation_Tracker_Node *first;
Memory_Annotation_Tracker_Node *last;
i32 count;
};
global Memory_Annotation_Tracker memory_tracker = {};
global pthread_mutex_t memory_tracker_mutex;
global_const u64 ALLOCATION_SIZE_ADJUSTMENT = 64;
function void*
mac_memory_allocate_extended(void *base, u64 size, String_Const_u8 location){
u64 adjusted_size = size + ALLOCATION_SIZE_ADJUSTMENT;
void *memory = mmap(base, adjusted_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
Assert(memory != MAP_FAILED);
Memory_Annotation_Tracker_Node *node = (Memory_Annotation_Tracker_Node*)memory;
pthread_mutex_lock(&memory_tracker_mutex);
{
zdll_push_back(memory_tracker.first, memory_tracker.last, node);
memory_tracker.count += 1;
}
pthread_mutex_unlock(&memory_tracker_mutex);
node->location = location;
node->size = size;
void* result = (node + 1);
return(result);
}
function void
mac_memory_free_extended(void *ptr){
Memory_Annotation_Tracker_Node *node = (Memory_Annotation_Tracker_Node*)ptr;
node -= 1;
pthread_mutex_lock(&memory_tracker_mutex);
{
zdll_remove(memory_tracker.first, memory_tracker.last, node);
memory_tracker.count -= 1;
}
pthread_mutex_unlock(&memory_tracker_mutex);
munmap(node, node->size + ALLOCATION_SIZE_ADJUSTMENT);
}
function
system_memory_allocate_sig(){
void* result = mac_memory_allocate_extended(0, size, location);
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return(result);
}
function
system_memory_set_protection_sig(){
b32 result = true;
int protect = 0;
switch (flags & 0x7){
case 0:
{
protect = PROT_NONE;
} break;
case MemProtect_Read:
{
protect = PROT_READ;
} break;
case MemProtect_Write:
case MemProtect_Read | MemProtect_Write:
{
protect = PROT_READ | PROT_WRITE;
} break;
case MemProtect_Execute:
{
protect = PROT_EXEC;
} break;
case MemProtect_Execute | MemProtect_Read:
{
protect = PROT_READ | PROT_EXEC;
} break;
// NOTE(inso): some W^X protection things might be unhappy about this one
case MemProtect_Execute | MemProtect_Write:
case MemProtect_Execute | MemProtect_Write | MemProtect_Read:
{
protect = PROT_READ | PROT_WRITE | PROT_EXEC;
} break;
}
Memory_Annotation_Tracker_Node *node = (Memory_Annotation_Tracker_Node*)ptr;
node -= 1;
if(mprotect(node, size, protect) == -1){
result = false;
}
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return(result);
}
function
system_memory_free_sig(){
mac_memory_free_extended(ptr);
}
function
system_memory_annotation_sig(){
Memory_Annotation result = {};
pthread_mutex_lock(&memory_tracker_mutex);
{
for (Memory_Annotation_Tracker_Node *node = memory_tracker.first;
node != 0;
node = node->next){
Memory_Annotation_Node *r_node = push_array(arena, Memory_Annotation_Node, 1);
sll_queue_push(result.first, result.last, r_node);
result.count += 1;
r_node->location = node->location;
r_node->address = node + 1;
r_node->size = node->size;
}
}
pthread_mutex_unlock(&memory_tracker_mutex);
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return(result);
}
////////////////////////////////
function
system_show_mouse_cursor_sig(){
mac_vars.cursor_show = show;
}
function
system_set_fullscreen_sig(){
// NOTE(yuval): Read comment in system_set_fullscreen_sig in win32_4ed.cpp
mac_vars.do_toggle = (mac_vars.full_screen != full_screen);
b32 success = true;
return(success);
}
function
system_is_fullscreen_sig(){
// NOTE(yuval): Read comment in system_is_fullscreen_sig in win32_4ed.cpp
b32 result = (mac_vars.full_screen != mac_vars.do_toggle);
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return(result);
}
function
system_get_keyboard_modifiers_sig(){
Input_Modifier_Set result = copy_modifier_set(arena, &mac_vars.input_chunk.pers.modifiers);
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return(result);
}
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////////////////////////////////
/**********************/
/* Graphics API */
/**********************/
////////////////////////////////
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function
graphics_get_texture_sig(){
u32 result = renderer->get_texture(renderer, dim, texture_kind);
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return(result);
}
function
graphics_fill_texture_sig(){
b32 result = renderer->fill_texture(renderer, texture_kind, texture, p, dim, data);
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return(result);
}
////////////////////////////////
/******************/
/* Font API */
/******************/
////////////////////////////////
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function
font_make_face_sig(){
Face* result = ft__font_make_face(arena, description, scale_factor);
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return(result);
}
////////////////////////////////