server/scsynth/iPhone/iSCSynthController.mm

   1 //
   2 //  iSCSynthController.m
   3 //  iscsynth
   4 //
   5 //  Created by Axel Balley on 21/10/08.
   6 //  Copyright 2008 __MyCompanyName__. All rights reserved.
   7 //
   8
   9 #import <AudioToolbox/AudioToolbox.h>
  10 #import "iSCSynthAppDelegate.h"
  11 #import "iSCSynthController.h"
  12
  13 #include "SC_Graph.h"
  14 #include "SC_GraphDef.h"
  15 #include "SC_Prototypes.h"
  16 #include "SC_Node.h"
  17 #include "SC_DirUtils.h"
  18
  19 static iSCSynthController* theController = 0;
  20
  21 int vpost(const char *fmt, va_list ap)
  22 {
  23         char buf[512];
  24         vsnprintf(buf, sizeof(buf), fmt, ap);
  25
  26         if (theController) [theController log:[NSString stringWithCString:buf encoding:NSASCIIStringEncoding]];
  27         return 0;
  28 }
  29
  30 @implementation iSCSynthController
  31
  32 - (id) init
  33 {
  34         if (!theController && (self=[super init]))
  35         {
  36                 options = kDefaultWorldOptions;
  37                 options.mBufLength = 1024;
  38                 timer = 0;
  39                 world = 0;
  40                 lastNodeID = 1000;
  41
  42                 unsigned long route = kAudioSessionOverrideAudioRoute_None;
  43                 AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute, sizeof(route), &route);
  44
  45                 SetPrintFunc(vpost);
  46                 theController = self;
  47         }
  48
  49         return self;
  50 }
  51
  52 - (void) awakeFromNib
  53 {
  54         NSFileManager *manager = [NSFileManager defaultManager];
  55         CFBundleRef bundle = CFBundleGetMainBundle();
  56         CFURLRef url = CFBundleCopyBundleURL(bundle);
  57         CFStringRef s = CFURLCopyFileSystemPath(url, kCFURLPOSIXPathStyle);
  58         CFRelease(url);
  59
  60         NSError *error;
  61         char supportpath[256];
  62         sc_GetUserAppSupportDirectory(supportpath, 256);
  63         NSString *support = [NSString stringWithCString:supportpath encoding:NSASCIIStringEncoding];
  64         NSString *dir = [support stringByAppendingString:@"/synthdefs"];
  65         if (![manager fileExistsAtPath:dir])
  66         {
  67                 NSString *from = [s stringByAppendingString:@"/synthdefs"];
  68                 if ([manager fileExistsAtPath:from])
  69                 {
  70                         [manager copyItemAtPath:from toPath:dir error:&error];
  71                 }
  72         }
  73         CFRelease(s);
  74
  75
  76         [logView setFont:[[logView font] fontWithSize:9.0f]];
  77         [logView setTextColor:[UIColor blueColor]];
  78
  79         [synthdefsViewController setRoot:dir];
  80         [synthdefsViewController setTarget:self withSelector:@selector(selectSynthdef:)];
  81
  82         [speakerSwitch setOn:NO];
  83         [freeAllButton setHidden:YES];
  84
  85 #if !TARGET_IPHONE_SIMULATOR
  86         [self start];
  87 #endif
  88 }
  89
  90 - (void) start
  91 {
  92         if (world) World_Cleanup(world);
  93         world = World_New(&options);
  94         if (!world || !World_OpenUDP(world, 57110)) return;
  95
  96         timer = [NSTimer scheduledTimerWithTimeInterval:0.5f target:self selector:@selector(update:) userInfo:nil repeats:YES];
  97         //if (!toggle.on) [toggle setOn:YES animated:YES];
  98         //[toggle setTitle:@"Stop" forState:UIControlStateNormal|UIControlStateHighlighted|UIControlStateSelected];
  99 }
 100
 101 - (void) stop
 102 {
 103         if (world) World_Cleanup(world);
 104         world = 0;
 105         if (timer) [timer invalidate];
 106         timer = 0;
 107         //[toggle setTitle:@"Start" forState:UIControlStateNormal|UIControlStateHighlighted|UIControlStateSelected];
 108         //if (toggle.on) [toggle setOn:NO animated:YES];
 109         [avgCPULabel setText:@"0.0"];
 110         [peakCPULabel setText:@"0.0"];
 111 }
 112
 113 - (void) freeAllNodes
 114 {
 115         //World_FreeAllGraphDefs(world);
 116         Group *group = World_GetGroup(world, 0);
 117         Group_DeleteAll(group);
 118 }
 119
 120 - (void) update:(NSTimer *)timer
 121 {
 122         double avgCPU = world->hw->mAudioDriver->GetAvgCPU();
 123         [avgCPULabel setText:[NSString stringWithFormat:@"%.1f",avgCPU]];
 124         double peakCPU = world->hw->mAudioDriver->GetPeakCPU();
 125         [peakCPULabel setText:[NSString stringWithFormat:@"%.1f",peakCPU]];
 126         [synthsLabel setText:[NSString stringWithFormat:@"%d",world->mNumGraphs]];
 127         [ugensLabel setText:[NSString stringWithFormat:@"%d",world->mNumUnits]];
 128
 129         [freeAllButton setHidden:(BOOL)(!world->mNumGraphs)];
 130 }
 131
 132 - (IBAction) toggleState:(id)sender
 133 {
 134         /*
 135         if (world) [self stop];
 136         else [self start];
 137         */
 138 }
 139
 140 - (IBAction) toggleSpeaker:(id)sender
 141 {
 142         UISwitch *s = (UISwitch *) sender;
 143         UInt32 route;
 144         if (s.on) route = kAudioSessionOverrideAudioRoute_Speaker;
 145         else route = kAudioSessionOverrideAudioRoute_None;
 146         AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute, sizeof(route), &route);
 147 }
 148
 149 - (IBAction) triggerFreeAll:(id)sender
 150 {
 151         [self freeAllNodes];
 152 }
 153
 154 - (void) selectSynthdef:(NSString *)string
 155 {
 156         char defpath[256];
 157         [string getCString:defpath maxLength:256 encoding:NSASCIIStringEncoding];
 158
 159         GraphDef *def = GraphDef_Load(world, defpath, 0);
 160         if (!def) return;
 161         Group *group = World_GetGroup(world, 0);
 162         Graph *graph = 0;
 163         int data = 0;
 164         sc_msg_iter msg(0,(char *) &data);
 165         Graph_New(world, def, lastNodeID++, &msg, &graph);
 166         if (graph && group)
 167         {
 168                 Group_AddTail(group, &graph->mNode);
 169                 Node_StateMsg(&graph->mNode, kNode_Go);
 170         }
 171 }
 172
 173 - (void) tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController
 174 {
 175         if (viewController==logViewController)
 176         {
 177                 [logView flashScrollIndicators];
 178         }
 179         else if (viewController==synthdefsViewController)
 180         {
 181                 [synthdefsViewController flashScrollIndicators];
 182         }
 183 }
 184
 185 - (void) log:(NSString *)string
 186 {
 187         NSString *s = [logView text];
 188         NSString *s2 = [s stringByAppendingString:string];
 189         [logView setText:s2];
 190 /*
 191         int len = [s2 length];
 192         if (len) [logView scrollRangeToVisible:NSMakeRange(len-1, 0)];
 193 */
 194         int offset = [logView contentSize].height - [logView bounds].size.height;
 195         if (offset>=0) [logView setContentOffset:CGPointMake(0,offset) animated:NO];
 196 }
 197
 198 - (void) dealloc
 199 {
 200         if (world) [self stop];
 201
 202         [super dealloc];
 203 }
 204
 205 @end