721 lines
19 KiB
Objective-C
721 lines
19 KiB
Objective-C
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 28.06.2017
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*
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* Mac Objective C layer for 4coder
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*
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*/
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// TOP
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#define inline internal
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#include "4ed_defines.h"
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#undef inline
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#include "4coder_API/version.h"
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#include "4coder_API/keycodes.h"
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#include "4ed_cursor_codes.h"
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#define WINDOW_NAME "4coder " VERSION
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#undef internal
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#undef global
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#undef external
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#define external
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#include "osx_objective_c_to_cpp_links.h"
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#include <CoreServices/CoreServices.h>
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#import <Cocoa/Cocoa.h>
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#import <CoreVideo/CVDisplayLink.h>
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#import <IOKit/hid/IOHIDLib.h>
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#import <OpenGL/OpenGL.h>
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#import <OpenGL/gl.h>
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#include <sys/types.h>
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#include <sys/event.h>
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#include <sys/time.h>
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#include <time.h>
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#include <string.h>
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void
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osx_post_to_clipboard(char *str){
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NSPasteboard *board = [NSPasteboard generalPasteboard];
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NSString *utf8_type = @"public.utf8-plain-text";
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NSArray<NSString*> *typesArray = [NSArray arrayWithObjects: utf8_type, nil];
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[board declareTypes:typesArray owner:nil];
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NSString *paste_string = [NSString stringWithUTF8String:str];
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[board setString:paste_string forType:utf8_type];
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osx_objc.just_posted_to_clipboard = true;
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}
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void
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osx_error_dialogue(char *str){
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NSAlert *alert = [[NSAlert alloc] init];
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[alert addButtonWithTitle:@"OK"];
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NSString *text = [NSString stringWithUTF8String:str];
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[alert setMessageText:text];
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[alert setAlertStyle:NSCriticalAlertStyle];
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[alert runModal];
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}
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//
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// Entry point, OpenGL window setup.
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//
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@interface AppDelegate : NSObject <NSApplicationDelegate>
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@end
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@interface My4coderView : NSOpenGLView{
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@public
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//CVDisplayLinkRef displayLink;
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}
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- (void)requestDisplay;
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- (void)checkClipboard;
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- (CVReturn)getFrame;
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- (void)drawRect:(NSRect)bounds;
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@end
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#define DISPLINK_SIG(n) CVReturn n(CVDisplayLinkRef link, const CVTimeStamp *now, const CVTimeStamp *output, CVOptionFlags flags_in, CVOptionFlags *flags_out, void *context)
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static DISPLINK_SIG(osx_display_link);
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@implementation My4coderView
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- (void)keyDown:(NSEvent *)event{
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NSString *real = [event charactersIgnoringModifiers];
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NSString *with_mods = [event characters];
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b32 is_dead_key = false;
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if (real && !with_mods){
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is_dead_key = true;
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}
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OSX_Keyboard_Modifiers mods = {0};
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NSEventModifierFlags flags = [NSEvent modifierFlags];
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mods.shift = ((flags & NSEventModifierFlagShift) != 0);
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mods.command = ((flags & NSEventModifierFlagCommand) != 0);
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mods.control = ((flags & NSEventModifierFlagControl) != 0);
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mods.option = ((flags & NSEventModifierFlagOption) != 0);
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mods.caps = ((flags & NSEventModifierFlagCapsLock) != 0);
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u32 length = real.length;
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for (u32 i = 0; i < length; ++i){
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unichar c = [real characterAtIndex:i];
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osx_character_input(c, mods);
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}
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}
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- (void)mouseDown:(NSEvent*)event{
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NSPoint m = [event locationInWindow];
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osx_mouse(m.x, m.y, MouseType_Press);
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}
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- (void)mouseDragged:(NSEvent*)event{
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NSPoint m = [event locationInWindow];
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osx_mouse(m.x, m.y, MouseType_Move);
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}
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- (void)mouseMoved:(NSEvent*)event{
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NSPoint m = [event locationInWindow];
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osx_mouse(m.x, m.y, MouseType_Move);
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}
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- (void)mouseUp:(NSEvent*)event{
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NSPoint m = [event locationInWindow];
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osx_mouse(m.x, m.y, MouseType_Release);
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}
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- (void)scrollWheel:(NSEvent*)event{
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float dx = event.scrollingDeltaX;
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float dy = event.scrollingDeltaY;
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osx_mouse_wheel(dx, dy);
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}
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- (BOOL)windowShouldClose:(NSWindow*)sender{
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osx_try_to_close();
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return(NO);
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}
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- (void)requestDisplay{
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NSRect rect = CGRectMake(0, 0, osx_objc.width, osx_objc.height);
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[self setNeedsDisplayInRect:rect];
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}
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static i32 did_update_for_clipboard = true;
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- (void)checkClipboard{
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NSPasteboard *board = [NSPasteboard generalPasteboard];
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if (board.changeCount != osx_objc.prev_clipboard_change_count && did_update_for_clipboard){
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[self requestDisplay];
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did_update_for_clipboard = false;
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}
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}
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- (CVReturn)getFrame{
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did_update_for_clipboard = true;
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@autoreleasepool
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{
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if (osx_objc.running){
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osx_objc.has_clipboard_item = false;
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NSPasteboard *board = [NSPasteboard generalPasteboard];
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if (board.changeCount != osx_objc.prev_clipboard_change_count){
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if (!osx_objc.just_posted_to_clipboard){
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NSString *utf8_type = @"public.utf8-plain-text";
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NSArray *array = [NSArray arrayWithObjects: utf8_type, nil];
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NSString *has_string = [board availableTypeFromArray:array];
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if (has_string != nil){
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NSData *data = [board dataForType: utf8_type];
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if (data != nil){
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u32 copy_length = data.length;
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if (copy_length > 0){
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// TODO(allen): Grow clipboard memory if needed.
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if (copy_length+1 < osx_objc.clipboard_max){
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osx_objc.clipboard_size = copy_length;
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[data getBytes: osx_objc.clipboard_data length: copy_length];
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((char*)osx_objc.clipboard_data)[copy_length] = 0;
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osx_objc.has_clipboard_item = true;
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}
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}
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}
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}
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}
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else{
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osx_objc.just_posted_to_clipboard = false;
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}
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osx_objc.prev_clipboard_change_count = board.changeCount;
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}
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CGLLockContext([[self openGLContext] CGLContextObj]);
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[[self openGLContext] makeCurrentContext];
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osx_step();
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[[self openGLContext] flushBuffer];
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CGLUnlockContext([[self openGLContext] CGLContextObj]);
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}
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}
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return kCVReturnSuccess;
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}
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- (void)reshape
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{
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[super reshape];
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NSRect rect = [self bounds];
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osx_resize(rect.size.width, rect.size.height);
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}
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- (void)init_gl
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{
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if(osx_objc.running){
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return;
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}
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[self setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
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NSOpenGLPixelFormatAttribute attrs[] = {
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NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersionLegacy,
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NSOpenGLPFAColorSize, 24,
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NSOpenGLPFAAlphaSize, 8,
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NSOpenGLPFAAccelerated,
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NSOpenGLPFADoubleBuffer,
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0
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};
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NSOpenGLPixelFormat* format = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs];
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if(format == nil){
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fprintf(stderr, "Error creating OpenGLPixelFormat\n");
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exit(1);
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}
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NSOpenGLContext* context = [[NSOpenGLContext alloc] initWithFormat:format shareContext:nil];
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[self setPixelFormat:format];
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[self setOpenGLContext:context];
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[context makeCurrentContext];
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osx_objc.running = true;
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}
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- (id)init
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{
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self = [super init];
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if(self == nil)
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{
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return nil;
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}
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[self init_gl];
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return self;
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}
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- (void)drawRect: (NSRect) bounds{
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[self getFrame];
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}
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- (void)awakeFromNib
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{
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[self init_gl];
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}
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- (void)prepareOpenGL
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{
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[super prepareOpenGL];
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[[self openGLContext] makeCurrentContext];
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GLint swapInt = 1;
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[[self openGLContext] setValues:&swapInt forParameter:NSOpenGLCPSwapInterval];
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}
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- (void)dealloc
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{
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[super dealloc];
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}
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- (BOOL)acceptsFirstResponder
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{
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return YES;
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}
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- (BOOL)becomeFirstResponder
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{
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return YES;
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}
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- (BOOL)resignFirstResponder
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{
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return YES;
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}
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@end
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#if 0
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static
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DISPLINK_SIG(osx_display_link){
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My4coderView* view = (__bridge My4coderView*)context;
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CVReturn result = [view getFrame];
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return result;
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}
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#endif
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@implementation AppDelegate
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- (void)applicationDidFinishLaunching:(id)sender
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{
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}
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- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication*)sender
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{
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return YES;
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}
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- (void)applicationWillTerminate:(NSApplication*)sender
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{
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}
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@end
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typedef struct File_Table_Entry{
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u64 hash;
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void *name;
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i32 fd;
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} File_Table_Entry;
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typedef struct File_Change_Queue{
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i32 kq;
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File_Table_Entry *table;
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i32 table_count;
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i32 table_size;
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} File_Change_Queue;
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static File_Change_Queue file_change_queue = {0};
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void*
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osx_file_name_prefixed_length(char *name){
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i32 len = 0;
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for (; name[len] != 0; ++len);
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char *name_stored = (char*)malloc(4 + l_round_up_u32(len, 4));
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*(i32*)name_stored = len;
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memcpy(name_stored + 4, name, len);
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return(name_stored);
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}
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b32
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osx_name_prefixed_match(void *a, void *b){
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b32 result = false;
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i32 *len_a = (i32*)a;
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i32 *len_b = (i32*)b;
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if (*len_a == *len_b){
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char *str_a = (char*)(len_a + 1);
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char *str_b = (char*)(len_b + 1);
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if (strncmp(str_a, str_b, *len_a) == 0){
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result = true;
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}
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}
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return(result);
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}
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File_Table_Entry*
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osx_file_listener_lookup_and_return_pointer(u64 hash, void *name){
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File_Table_Entry *result = 0;
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i32 index = (i32)(hash % file_change_queue.table_size);
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i32 first_index = index;
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for (;;){
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File_Table_Entry *entry = &file_change_queue.table[index];
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if (entry->hash == hash){
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if (osx_name_prefixed_match(name, entry->name)){
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result = entry;
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break;
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}
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}
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if (entry->name == 0){
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break;
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}
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index = (index + 1)%file_change_queue.table_size;
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if (index == first_index){
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break;
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}
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}
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return(result);
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}
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b32
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osx_file_listener_lookup(u64 hash, void *name, i32 *fd_out){
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b32 found = false;
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File_Table_Entry *entry = osx_file_listener_lookup_and_return_pointer(hash, name);
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if (entry != 0){
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found = true;
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if (fd_out != 0){
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*fd_out = entry->fd;
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}
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}
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return(found);
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}
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b32
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osx_file_listener_lookup_and_delete(u64 hash, void *name, i32 *fd_out){
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b32 found = false;
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File_Table_Entry *entry = osx_file_listener_lookup_and_return_pointer(hash, name);
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if (entry != 0){
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found = true;
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if (fd_out != 0){
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*fd_out = entry->fd;
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}
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memset(entry, 0, sizeof(*entry));
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entry->name = (void*)1;
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}
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return(found);
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}
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typedef struct Hash_Result{
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b32 is_in_table;
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b32 was_already_in_table;
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} Hash_Result;
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u64
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osx_file_hash(void *name){
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u32 count = *(u32*)(name);
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char *str = (char*)name + 4;
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u64 hash = 0;
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u64 state = count;
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u64 inc = 1 + 2*count;
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for (u32 i = 0; i <= count; ++i){
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u64 old_state = state;
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state = state*6364136223846783005ULL + inc;
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u32 xorshifted = ((old_state >> 18u) ^ old_state) >> 27u;
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u32 rot = old_state >> 59u;
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hash = (hash << 3) + (hash & 1) + ((xorshifted >> rot) | (xorshifted << ((-rot) & 31)));
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if (i < count){
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inc = 1 + 2*(((inc - 1) << 7) | (u8)str[i]);
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}
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}
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return(hash);
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}
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Hash_Result
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osx_file_listener_hash(u64 hash, void *name, i32 fd){
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Hash_Result result = {0};
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if (osx_file_listener_lookup(hash, name, 0)){
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result.is_in_table = true;
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result.was_already_in_table = true;
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}
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else if (file_change_queue.table_count * 6 < file_change_queue.table_size * 5){
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i32 index = (i32)(hash % file_change_queue.table_size);
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i32 first_index = index;
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for (;;){
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File_Table_Entry *entry = &file_change_queue.table[index];
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if (entry->name == 0 || entry->name == (void*)1){
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entry->hash = hash;
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entry->name = name;
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entry->fd = fd;
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result.is_in_table = true;
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++file_change_queue.table_count;
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break;
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}
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index = (index + 1)%file_change_queue.table_size;
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if (index == first_index){
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break;
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}
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}
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if (!result.is_in_table){
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fprintf(stdout, "file change listener table error: could not find a free slot in the table\n");
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}
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}
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return(result);
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}
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Hash_Result
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osx_file_listener_hash_bundled(File_Table_Entry entry){
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Hash_Result result = osx_file_listener_hash(entry.hash, entry.name, entry.fd);
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return(result);
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}
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void
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osx_file_listener_grow_table(i32 table_size){
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if (file_change_queue.table_size < table_size){
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File_Table_Entry *old_table = file_change_queue.table;
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i32 old_size = file_change_queue.table_size;
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file_change_queue.table = (File_Table_Entry*)osx_allocate(table_size*sizeof(File_Table_Entry));
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memset(file_change_queue.table, 0, table_size*sizeof(File_Table_Entry));
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file_change_queue.table_size = table_size;
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for (i32 i = 0; i < old_size; ++i){
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void *name = file_change_queue.table[i].name;
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if (name != 0 && name != (void*)1){
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osx_file_listener_hash_bundled(file_change_queue.table[i]);
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}
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}
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if (old_table != 0){
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osx_free(old_table, old_size*sizeof(File_Table_Entry));
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}
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}
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}
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void
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osx_file_listener_double_table(){
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osx_file_listener_grow_table(file_change_queue.table_size*2);
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}
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b32
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osx_file_listener_hash_always(u64 hash, void *name, i32 fd){
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b32 was_already_in_table = false;
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Hash_Result result = osx_file_listener_hash(hash, name, fd);
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if (result.was_already_in_table){
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was_already_in_table = true;
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}
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else if (!result.is_in_table){
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osx_file_listener_double_table();
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osx_file_listener_hash(hash, name, fd);
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}
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return(was_already_in_table);
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}
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void
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osx_file_listener_init(void){
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memset(&file_change_queue, 0, sizeof(file_change_queue));
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file_change_queue.kq = kqueue();
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osx_file_listener_grow_table(1024);
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}
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void
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osx_add_file_listener(char *dir_name){
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DBG_POINT();
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if (file_change_queue.kq < 0){
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return;
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}
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//fprintf(stdout, "ADD_FILE_LISTENER: %s\n", dir_name);
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i32 fd = open(dir_name, O_EVTONLY);
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if (fd <= 0){
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fprintf(stdout, "could not open fd for %s\n", dir_name);
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return;
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}
|
|
|
|
// TODO(allen): Decide what to do about these darn string mallocs.
|
|
void *name_stored = osx_file_name_prefixed_length(dir_name);
|
|
|
|
struct kevent new_kevent;
|
|
EV_SET(&new_kevent, fd, EVFILT_VNODE, EV_ADD|EV_CLEAR, NOTE_DELETE|NOTE_WRITE, 0, name_stored);
|
|
|
|
struct timespec t = {0};
|
|
kevent(file_change_queue.kq, &new_kevent, 1, 0, 0, &t);
|
|
|
|
b32 was_already_in_table = osx_file_listener_hash_always(osx_file_hash(name_stored), name_stored, fd);
|
|
if (was_already_in_table){
|
|
free(name_stored);
|
|
}
|
|
|
|
DBG_POINT();
|
|
}
|
|
|
|
void
|
|
osx_remove_file_listener(char *dir_name){
|
|
void *name = osx_file_name_prefixed_length(dir_name);
|
|
i32 fd;
|
|
if (osx_file_listener_lookup_and_delete(osx_file_hash(name), name, &fd)){
|
|
close(fd);
|
|
}
|
|
free(name);
|
|
}
|
|
|
|
i32
|
|
osx_get_file_change_event(char *buffer, i32 max, i32 *size){
|
|
if (file_change_queue.kq < 0){
|
|
return 0;
|
|
}
|
|
|
|
i32 result = 0;
|
|
struct timespec t = {0};
|
|
struct kevent event_out;
|
|
i32 count = kevent(file_change_queue.kq, 0, 0, &event_out, 1, &t);
|
|
if (count < 0 || (count > 0 && event_out.flags == EV_ERROR)){
|
|
//fprintf(stdout, "count: %4d error: %s\n", count, strerror(errno));
|
|
}
|
|
else if (count > 0){
|
|
if (event_out.udata != 0){
|
|
i32 len = *(i32*)event_out.udata;
|
|
char *str = (char*)((i32*)event_out.udata + 1);
|
|
//fprintf(stdout, "got an event for file: %.*s\n", len, str);
|
|
if (len <= max){
|
|
*size = len;
|
|
memcpy(buffer, str, len);
|
|
result = 1;
|
|
}
|
|
else{
|
|
// TODO(allen): Cache this miss for retrieval???
|
|
// TODO(allen): Better yet, always cache every event on every platform and therefore make two calls per event, but always with enough memory!??
|
|
result = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
void
|
|
osx_show_cursor(i32 show, i32 cursor_type){
|
|
local_persist b32 cursor_is_shown = 1;
|
|
if (show == 1){
|
|
if (!cursor_is_shown){
|
|
[NSCursor unhide];
|
|
cursor_is_shown = true;
|
|
}
|
|
}
|
|
else if (show == -1){
|
|
if (cursor_is_shown){
|
|
[NSCursor hide];
|
|
cursor_is_shown = false;
|
|
}
|
|
}
|
|
|
|
if (cursor_type > 0){
|
|
switch (cursor_type){
|
|
case APP_MOUSE_CURSOR_ARROW:
|
|
{
|
|
[[NSCursor arrowCursor] set];
|
|
}break;
|
|
|
|
case APP_MOUSE_CURSOR_IBEAM:
|
|
{
|
|
[[NSCursor IBeamCursor] set];
|
|
}break;
|
|
|
|
case APP_MOUSE_CURSOR_LEFTRIGHT:
|
|
{
|
|
[[NSCursor resizeLeftRightCursor] set];
|
|
}break;
|
|
|
|
case APP_MOUSE_CURSOR_UPDOWN:
|
|
{
|
|
[[NSCursor resizeUpDownCursor] set];
|
|
}break;
|
|
}
|
|
}
|
|
}
|
|
|
|
My4coderView* view = 0;
|
|
NSWindow* window = 0;
|
|
|
|
void
|
|
osx_schedule_step(void){
|
|
[NSTimer scheduledTimerWithTimeInterval: 0.0
|
|
target: view
|
|
selector: @selector(requestDisplay)
|
|
userInfo: nil repeats:NO];
|
|
}
|
|
|
|
void
|
|
osx_toggle_fullscreen(void){
|
|
[window toggleFullScreen:nil];
|
|
}
|
|
|
|
b32
|
|
osx_is_fullscreen(void){
|
|
b32 result = (([window styleMask] & NSFullScreenWindowMask) != 0);
|
|
return(result);
|
|
}
|
|
|
|
void
|
|
osx_close_app(void){
|
|
[NSApp terminate: nil];
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv){
|
|
memset(&osx_objc, 0, sizeof(osx_objc));
|
|
|
|
umem clipboard_size = MB(4);
|
|
osx_objc.clipboard_data = osx_allocate(clipboard_size);
|
|
osx_objc.clipboard_max = clipboard_size;
|
|
osx_objc.argc = argc;
|
|
osx_objc.argv = argv;
|
|
|
|
osx_file_listener_init();
|
|
|
|
@autoreleasepool{
|
|
NSApplication *app = [NSApplication sharedApplication];
|
|
[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
|
|
|
|
[app setDelegate:[[AppDelegate alloc] init]];
|
|
NSRect screenRect = [[NSScreen mainScreen] frame];
|
|
float w = 800.f;
|
|
float h = 600.f;
|
|
NSRect frame = NSMakeRect((screenRect.size.width - w) * 0.5, (screenRect.size.height - h) * 0.5, w, h);
|
|
|
|
u32 flags = NSTitledWindowMask | NSClosableWindowMask | NSMiniaturizableWindowMask | NSResizableWindowMask;
|
|
window = [[NSWindow alloc] initWithContentRect:frame styleMask:flags backing:NSBackingStoreBuffered defer:NO];
|
|
|
|
[window setAcceptsMouseMovedEvents:YES];
|
|
|
|
view = [[My4coderView alloc] init];
|
|
[view setFrame:[[window contentView] bounds]];
|
|
[view setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
|
|
|
|
[[window contentView] addSubview:view];
|
|
[window setMinSize:NSMakeSize(100, 100)];
|
|
[window setTitle:@WINDOW_NAME];
|
|
[window makeKeyAndOrderFront:nil];
|
|
|
|
[NSTimer scheduledTimerWithTimeInterval: 0.5
|
|
target: view
|
|
selector: @selector(checkClipboard)
|
|
userInfo: nil repeats:YES];
|
|
|
|
osx_init();
|
|
|
|
[NSApp run];
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
// BOTTOM
|
|
|