/* * Hedgewars-iOS, a Hedgewars port for iOS devices * Copyright (c) 2009-2012 Vittorio Giovara <vittorio.giovara@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */#import "MapPreviewButtonView.h"#import <pthread.h>#import <QuartzCore/QuartzCore.h>#define INDICATOR_TAG 7654@implementation MapPreviewButtonView@synthesize delegate;-(id) initWithFrame:(CGRect)frame { if ((self = [super initWithFrame:frame])) { delegate = nil; self.backgroundColor = [UIColor whiteColor]; self.layer.cornerRadius = 12; } return self;}-(void) dealloc { self.delegate = nil; [super dealloc];}#pragma mark -#pragma mark image wrappers-(void) setImageRounded:(UIImage *)image forState:(UIControlState)controlState { [self setImage:[image makeRoundCornersOfSize:CGSizeMake(12, 12)] forState:controlState];}-(void) setImageRounded:(UIImage *)image { [self setImageRounded:image forState:UIControlStateNormal];}#pragma mark -#pragma mark preview-(int) sendToEngine:(NSString *)string { unsigned char length = [string length]; SDLNet_TCP_Send(csd, &length, 1); return SDLNet_TCP_Send(csd, [string UTF8String], length);}-(void) engineProtocol:(uint8_t *)unpackedMap { IPaddress ip; BOOL serverQuit = NO; uint8_t packedMap[128*32]; int port = [HWUtils randomPort]; if (SDLNet_Init() < 0) { DLog(@"SDLNet_Init: %s", SDLNet_GetError()); serverQuit = YES; } // Resolving the host using NULL make network interface to listen if (SDLNet_ResolveHost(&ip, NULL, port) < 0) { DLog(@"SDLNet_ResolveHost: %s\n", SDLNet_GetError()); serverQuit = YES; } // Open a connection with the IP provided (listen on the host's port) if (!(sd = SDLNet_TCP_Open(&ip))) { DLog(@"SDLNet_TCP_Open: %s %\n", SDLNet_GetError(), port); serverQuit = YES; } // launch the preview here so that we're sure the tcp channel is open pthread_t thread_id; pthread_create(&thread_id, NULL, (void *(*)(void *))GenLandPreview, (void *)port); pthread_detach(thread_id); DLog(@"Waiting for a client on port %d", port); while (!serverQuit) { /* This check the sd if there is a pending connection. * If there is one, accept that, and open a new socket for communicating */ csd = SDLNet_TCP_Accept(sd); if (NULL != csd) { DLog(@"Client found"); NSDictionary *dictForEngine = [self getDataForEngine]; [self sendToEngine:[dictForEngine objectForKey:@"seedCommand"]]; [self sendToEngine:[dictForEngine objectForKey:@"templateFilterCommand"]]; [self sendToEngine:[dictForEngine objectForKey:@"mapGenCommand"]]; [self sendToEngine:[dictForEngine objectForKey:@"mazeSizeCommand"]]; [self sendToEngine:@"!"]; memset(packedMap, 0, 128*32); SDLNet_TCP_Recv(csd, packedMap, 128*32); SDLNet_TCP_Recv(csd, &maxHogs, sizeof(uint8_t)); SDLNet_TCP_Close(csd); serverQuit = YES; } } [HWUtils freePort:port]; SDLNet_TCP_Close(sd); SDLNet_Quit(); // spread the packed bits in an array of bytes (one pixel per element, 0= transparent 1= color) int k = 0; memset(unpackedMap, 255, 128*32*8); // 255 is white for (int i = 0; i < 32*128; i++) { for (int j = 7; j >= 0; j--) { if (((packedMap[i] >> j) & 0x01) != 0) unpackedMap[k] = 170; // level of gray [0-255] k++; } } return;}-(void) drawingThread { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; uint8_t unpackedMap[128*32*8]; [self engineProtocol:unpackedMap]; // http://developer.apple.com/mac/library/qa/qa2001/qa1037.html CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceGray(); CGContextRef bitmapImage = CGBitmapContextCreate(unpackedMap, 256, 128, 8, 256, colorspace, kCGImageAlphaNone); CGColorSpaceRelease(colorspace); CGImageRef previewCGImage = CGBitmapContextCreateImage(bitmapImage); CGContextRelease(bitmapImage); UIImage *previewImage = [[UIImage alloc] initWithCGImage:previewCGImage]; CGImageRelease(previewCGImage); // all these are performed on the main thread to prevent a leak [self performSelectorOnMainThread:@selector(setImageRounded:) withObject:previewImage waitUntilDone:NO]; [previewImage release]; [self performSelectorOnMainThread:@selector(setLabelText:) withObject:[NSString stringWithFormat:@"%d", maxHogs] waitUntilDone:NO]; [self performSelectorOnMainThread:@selector(turnOnWidgets) withObject:nil waitUntilDone:NO]; [self performSelectorOnMainThread:@selector(removeIndicator) withObject:nil waitUntilDone:NO]; [pool release];}-(void) updatePreviewWithSeed:(NSString *)seed { // remove the current preview and title [self setImage:nil forState:UIControlStateNormal]; [self setTitle:nil forState:UIControlStateNormal]; // don't display preview on slower device, too slow and memory hog if (IS_NOT_POWERFUL([HWUtils modelType])) { [self setTitle:NSLocalizedString(@"Preview not available",@"") forState:UIControlStateNormal]; [self turnOnWidgets]; } else { // add a very nice spinning wheel UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; indicator.center = CGPointMake(self.bounds.size.width / 2, self.bounds.size.height / 2); indicator.tag = INDICATOR_TAG; [indicator startAnimating]; [self addSubview:indicator]; [indicator release]; // let's draw in a separate thread so the gui can work; at the end it restore other widgets [NSThread detachNewThreadSelector:@selector(drawingThread) toTarget:self withObject:nil]; }}-(void) updatePreviewWithFile:(NSString *)filePath { UIImage *image = [[UIImage alloc] initWithContentsOfFile:filePath]; [self setImageRounded:image forState:UIControlStateNormal]; self.backgroundColor = [UIColor whiteColor]; self.layer.cornerRadius = 12; [image release];}-(void) removeIndicator { UIActivityIndicatorView *indicator = (UIActivityIndicatorView *)[self viewWithTag:INDICATOR_TAG]; if (indicator) { [indicator stopAnimating]; [indicator removeFromSuperview]; }}#pragma mark -#pragma mark delegate-(void) turnOnWidgets { if ([self.delegate respondsToSelector:@selector(turnOnWidgets)]) [self.delegate turnOnWidgets];}-(void) setLabelText:(NSString *)string { if ([self.delegate respondsToSelector:@selector(setMaxLabelText:)]) [self.delegate setMaxLabelText:string];}-(NSDictionary *)getDataForEngine { if ([self.delegate respondsToSelector:@selector(getDataForEngine)]) return [self.delegate getDataForEngine]; return nil;}@end