4coder/platform_mac/mac_4ed.cpp

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/*
* Mr. 4th Dimention - Allen Webster
*
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* 28.06.2017
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*
* Mac C++ layer for 4coder
*
*/
// TOP
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#define IS_PLAT_LAYER
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#include "4coder_base_types.h"
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#include "4coder_API/4coder_version.h"
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#include "4coder_lib/4coder_utf8.h"
#if defined(FRED_SUPER)
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# include "4coder_lib/4coder_arena.h"
# include "4coder_lib/4coder_arena.cpp"
# define FSTRING_IMPLEMENTATION
# include "4coder_lib/4coder_string.h"
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# include "4coder_API/4coder_keycodes.h"
# include "4coder_API/4coder_style.h"
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# include "4coder_API/4coder_types.h"
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#else
# include "4coder_default_bindings.cpp"
#endif
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#include "osx_objective_c_to_cpp_links.h"
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#include "4ed_math.h"
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#include <string.h>
#include "4ed_font.h"
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#include "4ed_system.h"
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#include "4ed_render_target.h"
#include "4ed_render_format.h"
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#include "4ed.h"
#include "4ed_linked_node_macros.h"
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#include "4ed_file_track.h"
#include "4ed_system_shared.h"
#include "unix_4ed_headers.h"
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#include <sys/syslimits.h>
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#undef external
#undef internal
#include <mach/mach.h>
#define external extern "C"
#define internal static
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#include <mach-o/dyld.h>
#include <stdlib.h>
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////////////////////////////////
#include "4ed_shared_thread_constants.h"
#include "unix_threading_wrapper.h"
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#include "mac_semaphore_wrapper.h"
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// TODO(allen): Make an intrinsics header that uses the cracked OS to define a single set of intrinsic names.
#define InterlockedCompareExchange(dest, ex, comp) \
__sync_val_compare_and_swap((dest), (comp), (ex))
////////////////////////////////
#define SLASH '/'
#define DLL "so"
global System_Functions sysfunc;
#include "4ed_shared_library_constants.h"
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#include "unix_library_wrapper.h"
#include "4ed_standard_libraries.cpp"
#include "4ed_coroutine.cpp"
#include "4ed_font.cpp"
////////////////////////////////
struct OSX_Vars{
Application_Step_Input input;
String clipboard_contents;
b32 keep_running;
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b32 has_prev_time;
u64 prev_time_u;
File_Track_System track;
void *track_table;
u32 track_table_size;
u32 track_node_size;
};
////////////////////////////////
OSX_Objective_C_Vars osx_objc;
OSX_Vars osxvars;
global Render_Target target;
global Application_Memory memory_vars;
global Plat_Settings plat_settings;
global Libraries libraries;
global App_Functions app;
global Custom_API custom_api;
global Coroutine_System_Auto_Alloc coroutines;
////////////////////////////////
#include "mac_error_box.cpp"
////////////////////////////////
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internal
Sys_Get_4ed_Path_Sig(system_get_4ed_path){
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Partition *scratch = &shared_vars.scratch;
Temp_Memory temp = begin_temp_memory(scratch);
char *temp_buffer = push_array(scratch, char, capacity);
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i32 size = 0;
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u32 buf_size = capacity;
i32 status = _NSGetExecutablePath(temp_buffer, &buf_size);
buf_size = str_size(temp_buffer);
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if (status == 0){
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ssize_t ln_len = readlink(temp_buffer, out, capacity);
if (ln_len != -1){
out[ln_len] = 0;
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String str = make_string_cap(out, ln_len, capacity);
remove_last_folder(&str);
terminate_with_null(&str);
size = str.size;
}
else{
memcpy(out, temp_buffer, buf_size);
String str = make_string_cap(out, buf_size, capacity);
remove_last_folder(&str);
terminate_with_null(&str);
size = str.size;
}
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}
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end_temp_memory(temp);
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return(size);
}
//#include "mac_fd_check.cpp"
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#include "unix_4ed_functions.cpp"
internal
Sys_Now_Time_Sig(system_now_time){
f64 t = osx_timer_seconds();
u64 result = (u64)(t*1000000.f);
return(result);
}
////////////////////////////////
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void
osx_log(char *m, i32 l){
system_log(m, l);
}
////////////////////////////////
internal void
system_schedule_step(void){
osx_schedule_step();
}
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////////////////////////////////
#include "4ed_work_queues.cpp"
////////////////////////////////
internal
Sys_Show_Mouse_Cursor_Sig(system_show_mouse_cursor){
switch (show){
case MouseCursorShow_Never:
{
osx_show_cursor(-1, 0);
}break;
case MouseCursorShow_Always:
{
osx_show_cursor(1, 0);
}break;
}
}
internal
Sys_Set_Fullscreen_Sig(system_set_fullscreen){
osx_objc.do_toggle = (osx_objc.full_screen != full_screen);
return(true);
}
internal
Sys_Is_Fullscreen_Sig(system_is_fullscreen){
b32 result = (osx_objc.full_screen != osx_objc.do_toggle);
return(result);
}
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#include "4ed_coroutine_functions.cpp"
#include "4ed_system_shared.cpp"
// File Change Listeners
internal b32
handle_track_out_of_memory(i32 val){
b32 result = false;
switch (val){
case FileTrack_OutOfTableMemory:
{
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u32 new_table_size = osxvars.track_table_size*2;
void *new_table = system_memory_allocate(new_table_size);
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move_track_system(&osxvars.track, &shared_vars.scratch, new_table, new_table_size);
system_memory_free(osxvars.track_table, osxvars.track_table_size);
osxvars.track_table_size = new_table_size;
osxvars.track_table = new_table;
}break;
case FileTrack_OutOfListenerMemory:
{
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osxvars.track_node_size *= 2;
void *node_expansion = system_memory_allocate(osxvars.track_node_size);
expand_track_system_listeners(&osxvars.track, &shared_vars.scratch, node_expansion, osxvars.track_node_size);
}break;
default: result = true; break;
}
return(result);
}
internal
Sys_Add_Listener_Sig(system_add_listener){
b32 result = false;
for (;;){
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i32 track_result = add_listener(&osxvars.track, &shared_vars.scratch, (u8*)filename);
if (handle_track_out_of_memory(track_result)){
if (track_result == FileTrack_Good){
result = true;
}
break;
}
}
return(result);
}
internal
Sys_Remove_Listener_Sig(system_remove_listener){
b32 result = false;
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i32 track_result = remove_listener(&osxvars.track, &shared_vars.scratch, (u8*)filename);
if (track_result == FileTrack_Good){
result = true;
}
return(result);
}
internal
Sys_Get_File_Change_Sig(system_get_file_change){
b32 result = false;
i32 size = 0;
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i32 get_result = get_change_event(&osxvars.track, &shared_vars.scratch, (u8*)buffer, max, &size);
*required_size = size;
*mem_too_small = false;
if (get_result == FileTrack_Good){
result = true;
}
else if (get_result == FileTrack_MemoryTooSmall){
*mem_too_small = true;
result = true;
}
return(result);
}
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//
// Clipboard
//
internal
Sys_Post_Clipboard_Sig(system_post_clipboard){
char *string = str.str;
if (!terminate_with_null(&str)){
if (osx_objc.clipboard_space_max <= str.size + 1){
if (osx_objc.clipboard_space != 0){
system_memory_free(osx_objc.clipboard_space, osx_objc.clipboard_space_max);
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}
osx_objc.clipboard_space_max = l_round_up_u32(str.size*2 + 1, KB(4096));
osx_objc.clipboard_space = (char*)system_memory_allocate(osx_objc.clipboard_space_max);
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}
memcpy(osx_objc.clipboard_space, str.str, str.size);
osx_objc.clipboard_space[str.size] = 0;
string = osx_objc.clipboard_space;
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}
osx_post_to_clipboard(string);
}
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//
// CLI
//
// HACK(allen): ALMOST an exact duplicate from the Linux version. Just epoll doesn't port. deduplicate or switch to NSTask.
global i32 cli_count = 0;
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internal
Sys_CLI_Call_Sig(system_cli_call, path, script_name, cli_out){
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i32 pipe_fds[2];
if (pipe(pipe_fds) == -1){
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return 0;
}
i32 child_pid = fork();
if (child_pid == -1){
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return 0;
}
enum { PIPE_FD_READ, PIPE_FD_WRITE };
// child
if (child_pid == 0){
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){
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exit(1);
}
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char* argv[] = {
"sh",
"-c",
script_name,
0
};
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if (execv("/bin/sh", argv) == -1){
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}
exit(1);
}
else{
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];
++cli_count;
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}
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return(true);
}
internal
Sys_CLI_Begin_Update_Sig(system_cli_begin_update){
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// NOTE(inso): I don't think anything needs to be done here.
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}
internal
Sys_CLI_Update_Step_Sig(system_cli_update_step){
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i32 pipe_read_fd = *(i32*)&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){
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} else if (num == 0){
// NOTE(inso): EOF
break;
} else {
ptr += num;
space_left -= num;
}
}
*amount = (ptr - dest);
return((ptr - dest) > 0);
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}
internal
Sys_CLI_End_Update_Sig(system_cli_end_update){
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pid_t pid = *(pid_t*)&cli->proc;
b32 close_me = false;
int status;
if (pid && waitpid(pid, &status, WNOHANG) > 0){
close_me = true;
cli->exit = WEXITSTATUS(status);
close(*(int*)&cli->out_read);
close(*(int*)&cli->out_write);
--cli_count;
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}
return(close_me);
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}
#include "4ed_font_provider_freetype.h"
global u32 system_font_method = SystemFontMethod_FilePath;
#include "4ed_font_provider_freetype.cpp"
internal
Sys_Font_Path(name, parameters){
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b32 italic = (parameters != 0 && parameters->italics);
b32 bold = (parameters != 0 && parameters->bold);
i32 pt_size = 12;
if (parameters != 0){
pt_size = parameters->pt_size;
}
OSX_Font_Match match = osx_get_font_match(name, pt_size, italic, bold);
Font_Path path = {};
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Partition *part = &shared_vars.font_scratch;
path.temp = begin_temp_memory(part);
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if (match.path != 0){
i32 len = str_size(match.path);
char *buffer = push_array(part, char, len + 1);
if (buffer == 0){
sysshared_partition_grow(part, l_round_up_i32(len + 1, KB(4)));
buffer = push_array(part, char, len + 1);
}
if (buffer != 0){
push_align(part, 8);
memcpy(buffer, match.path, len + 1);
path.len = len;
path.name = buffer;
}
}
return(path);
}
Sys_Font_Data_Not_Used;
internal void
osx_get_loadable_fonts(Partition *part, Font_Setup_List *list){
OSX_Loadable_Fonts fonts = osx_list_loadable_fonts();
for (i32 i = 0; i < fonts.count; ++i){
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char *name = fonts.names[i];
char *path = fonts.paths[i];
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if (name == 0 || path == 0){
continue;
}
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Temp_Memory reset= begin_temp_memory(part);
Font_Setup *setup = push_array(part, Font_Setup, 1);
if (setup != 0){
memset(setup, 0, sizeof(*setup));
i32 len = str_size(path);
if (len < sizeof(setup->stub.name)){
i32 name_len = str_size(name);
if (name_len < sizeof(setup->name)){
setup->stub.load_from_path = true;
memcpy(setup->stub.name, path, len + 1);
setup->stub.len = len;
setup->has_display_name = true;
setup->len = name_len;
memcpy(setup->name, name, name_len + 1);
sll_push(list->first, list->last, setup);
}
else{
end_temp_memory(reset);
}
}
else{
end_temp_memory(reset);
}
}
}
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free(fonts.names);
}
#include <OpenGL/OpenGL.h>
#include <OpenGL/gl.h>
#include "opengl/4ed_opengl_render.cpp"
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////////////////////////////////
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#include "4ed_link_system_functions.cpp"
#include "4ed_shared_init_logic.cpp"
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external void*
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osx_allocate(umem size){
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void *result = system_memory_allocate(size);
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return(result);
}
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external void
osx_free(void *ptr, umem size){
system_memory_free(ptr, size);
}
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external void
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osx_resize(int width, int height){
if (width > 0 && height > 0){
osx_objc.width = width;
osx_objc.height = height;
target.width = width;
target.height = height;
osx_schedule_step();
}
}
internal void
osx_push_key(Key_Code code, Key_Code chr, Key_Code chr_nocaps, b8 *mods){
i32 count = osxvars.input.keys.count;
if (count < KEY_INPUT_BUFFER_SIZE){
Key_Event_Data *data = osxvars.input.keys.keys;
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data[count].keycode = code;
data[count].character = chr;
data[count].character_no_caps_lock = chr_nocaps;
memcpy(data[count].modifiers, mods, sizeof(*mods)*MDFR_INDEX_COUNT);
osxvars.input.keys.count = count + 1;
}
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}
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internal void
osx_mods_struct_to_array(OSX_Keyboard_Modifiers flags, b8 *mods){
mods[MDFR_SHIFT_INDEX] = ((flags.shift) != 0);
mods[MDFR_CONTROL_INDEX] = ((flags.control) != 0);
mods[MDFR_ALT_INDEX] = ((flags.option) != 0);
mods[MDFR_COMMAND_INDEX] = ((flags.command) != 0);
mods[MDFR_CAPS_INDEX] = ((flags.caps) != 0);
}
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external void
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osx_character_input(u32 code, OSX_Keyboard_Modifiers modifier_flags){
Key_Code c = 0;
switch (code){
// TODO(allen): Find the canonical list of these things.
case 0x007F: c = key_back; break;
case 0xF700: c = key_up; break;
case 0xF701: c = key_down; break;
case 0xF702: c = key_left; break;
case 0xF703: c = key_right; break;
case 0xF728: c = key_del; break;
case 0xF729: c = key_home; break;
case 0xF72B: c = key_end; break;
case 0xF72C: c = key_page_up; break;
case 0xF72D: c = key_page_down; break;
case 0x001B: c = key_esc; break;
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case 0xF704: c = key_f1; break;
case 0xF705: c = key_f2; break;
case 0xF706: c = key_f3; break;
case 0xF707: c = key_f4; break;
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case 0xF708: c = key_f5; break;
case 0xF709: c = key_f6; break;
case 0xF70A: c = key_f7; break;
case 0xF70B: c = key_f8; break;
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case 0xF70C: c = key_f9; break;
case 0xF70D: c = key_f10; break;
case 0xF70E: c = key_f11; break;
case 0xF70F: c = key_f12; break;
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case 0xF710: c = key_f13; break;
case 0xF711: c = key_f14; break;
case 0xF712: c = key_f15; break;
case 0xF713: c = key_f16; break;
}
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b8 mods[MDFR_INDEX_COUNT] = {};
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osx_mods_struct_to_array(modifier_flags, mods);
if (c != 0){
osx_push_key(c, 0, 0, mods);
}
else if (code != 0){
if (code < 0xE000 || code > 0xF8FF){
if (code == '\r'){
code = '\n';
}
Key_Code chr = code;
Key_Code nocaps = code;
if (modifier_flags.caps){
if ('a' <= nocaps && nocaps <= 'z'){
chr += 'A' - 'a';
}
else if ('A' <= nocaps && nocaps <= 'Z'){
chr += 'a' - 'A';
}
}
osx_push_key(code, chr, nocaps, mods);
}
else{
fprintf(stdout, "unhandled private code %x\n", code);
}
}
else{
osx_push_key(0, 0, 0, mods);
}
osx_schedule_step();
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}
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external void
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osx_mouse(i32 mx, i32 my, u32 type){
i32 new_x = mx;
i32 new_y = osx_objc.height - my;
if (new_x != osxvars.input.mouse.x || new_y != osxvars.input.mouse.y){
osxvars.input.mouse.x = new_x;
osxvars.input.mouse.y = new_y;
osx_schedule_step();
}
if (type == MouseType_Press){
osxvars.input.mouse.press_l = true;
osxvars.input.mouse.l = true;
osx_schedule_step();
}
if (type == MouseType_Release){
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osxvars.input.mouse.release_l = true;
osxvars.input.mouse.l = false;
osx_schedule_step();
}
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}
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external void
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osx_mouse_wheel(float dx, float dy){
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osxvars.input.mouse.wheel = - (int32_t)(dy);
osx_schedule_step();
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}
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external void
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osx_try_to_close(void){
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osxvars.keep_running = false;
osx_schedule_step();
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}
external void
osx_step(void){
Application_Step_Result result = {};
// NOTE(allen): Prepare the Frame Input
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osxvars.input.dt = 1.f/60.f;
if (osxvars.has_prev_time){
u64 time_u = system_now_time();
u64 time_elapsed_u = time_u - osxvars.prev_time_u;
osxvars.input.dt = time_elapsed_u/1000000.f;
osxvars.prev_time_u = time_u;
}
else{
osxvars.has_prev_time = true;
osxvars.prev_time_u = system_now_time();
}
// TODO(allen): CROSS REFERENCE WITH WINDOWS SPECIAL CODE "TIC898989"
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Application_Step_Input frame_input = osxvars.input;
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frame_input.trying_to_kill = !osxvars.keep_running;
OSX_Keyboard_Modifiers mods = osx_get_modifiers();
osx_mods_struct_to_array(mods, frame_input.keys.modifiers);
osxvars.input.first_step = false;
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memset(&osxvars.input.keys, 0, sizeof(osxvars.input.keys));
osxvars.input.mouse.press_l = false;
osxvars.input.mouse.release_l = false;
osxvars.input.mouse.press_r = false;
osxvars.input.mouse.release_r = false;
osxvars.input.mouse.wheel = 0;
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// NOTE(allen): Frame Clipboard Input
if (osx_objc.has_clipboard_item){
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frame_input.clipboard = make_string(osx_objc.clipboard_data, (i32)osx_objc.clipboard_size);
}
else{
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frame_input.clipboard = null_string;
}
// HACK(allen): Got this all messed up with respect to how everyone else (other OS layers) work
osx_objc.do_toggle = false;
osx_objc.full_screen = osx_is_fullscreen();
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// HACK(allen): THIS SHIT IS FUCKED (happens on linux too)
b32 keep_running = osxvars.keep_running;
// NOTE(allen): Application Core Update
target.buffer.pos = 0;
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if (app.step != 0){
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result = app.step(&sysfunc, &target, &memory_vars, &frame_input);
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}
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else{
//LOG("app.step == 0 -- skipping\n");
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}
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// NOTE(allen): Finish the Loop
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if (result.perform_kill){
osx_close_app();
}
else if (!keep_running && !osxvars.keep_running){
osxvars.keep_running = true;
}
// NOTE(allen): Switch to New Title
if (result.has_new_title){
osx_change_title(result.title_string);
}
// NOTE(allen): Switch to New Cursor
osx_show_cursor(0, result.mouse_cursor_type);
// NOTE(allen): Render
osx_begin_render();
gl_render(&target, &shared_vars.pixel_scratch);
osx_end_render();
// NOTE(allen): Toggle Full Screen
if (osx_objc.do_toggle){
osx_toggle_fullscreen();
}
// NOTE(allen): Schedule Another Step if Needed
if (result.animating || cli_count > 0){
osx_schedule_step();
}
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}
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external void
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osx_init(){
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//
// System Linkage
//
link_system_code();
//
// Memory init
//
memset(&target, 0, sizeof(target));
memset(&memory_vars, 0, sizeof(memory_vars));
memset(&plat_settings, 0, sizeof(plat_settings));
memset(&libraries, 0, sizeof(libraries));
memset(&app, 0, sizeof(app));
memset(&custom_api, 0, sizeof(custom_api));
memory_init();
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osxvars.keep_running = true;
osxvars.input.first_step = true;
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//
// HACK(allen):
// Previously zipped stuff is here, it should be zipped in the new pattern now.
//
init_shared_vars();
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osxvars.track_table_size = KB(16);
osxvars.track_table = system_memory_allocate(osxvars.track_table_size);
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osxvars.track_node_size = KB(16);
void *track_nodes = system_memory_allocate(osxvars.track_node_size);
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i32 track_result = init_track_system(&osxvars.track, &shared_vars.scratch,
osxvars.track_table, osxvars.track_table_size,
track_nodes, osxvars.track_node_size);
if (track_result != FileTrack_Good){
exit(1);
}
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//
// Load Core Code
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//
load_app_code();
//
// Read command line
//
read_command_line(osx_objc.argc, osx_objc.argv);
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//
// Load Custom Code
//
#if defined(FRED_SUPER)
load_custom_code();
#else
custom_api.get_bindings = get_bindings;
#endif
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//
// Threads
//
work_system_init();
//
// Coroutines
//
coroutines_init();
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//
// Font System Init
//
Partition *scratch = &shared_vars.scratch;
Temp_Memory temp = begin_temp_memory(scratch);
Font_Setup_List font_setup = system_font_get_local_stubs(scratch);
osx_get_loadable_fonts(scratch, &font_setup);
system_font_init(&sysfunc.font, plat_settings.font_size, plat_settings.use_hinting, font_setup);
end_temp_memory(temp);
//
// App Init
//
char cwd[4096];
u32 size = sysfunc.get_current_path(cwd, sizeof(cwd));
if (size == 0 || size >= sizeof(cwd)){
system_error_box("Could not get current directory at launch.");
}
String curdir = make_string(cwd, size);
terminate_with_null(&curdir);
replace_char(&curdir, '\\', '/');
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String clipboard_string = {};
if (osx_objc.has_clipboard_item){
clipboard_string = make_string(osx_objc.clipboard_data, osx_objc.clipboard_size);
}
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//LOG("Initializing application variables\n");
app.init(&sysfunc, &target, &memory_vars, clipboard_string, curdir, custom_api);
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}
#include "mac_4ed_file_track.cpp"
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// BOTTOM