cog/Plugins/Dumb/DumbContainer.m

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//
// DumbContainer.m
// Dumb
//
// Created by Christopher Snowhill on 10/4/13.
// Copyright 2013 __NoWork, Inc__. All rights reserved.
//
#import <Dumb/dumb.h>
#import "DumbContainer.h"
#import "DumbDecoder.h"
#import "Logging.h"
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@interface DumbCallbackData : NSObject
{
@public NSString * baseUrl;
@public NSMutableArray * tracks;
}
@end
@implementation DumbCallbackData
@end
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@implementation DumbContainer
+ (NSArray *)fileTypes
{
return [DumbDecoder fileTypes];
}
+ (NSArray *)mimeTypes
{
return nil;
}
+ (float)priority
{
return 1.0f;
}
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int scanCallback(void *data, int startOrder, long length)
{
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NSObject* _cbData = (__bridge NSObject *)(data);
DumbCallbackData * cbData = (id) _cbData;
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[cbData->tracks addObject:[NSURL URLWithString:[cbData->baseUrl stringByAppendingFormat:@"#%i", startOrder]]];
return 0;
}
+ (NSArray *)urlsForContainerURL:(NSURL *)url
{
if ([url fragment]) {
// input url already has fragment defined - no need to expand further
return [NSMutableArray arrayWithObject:url];
}
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id audioSourceClass = NSClassFromString(@"AudioSource");
id<CogSource> source = [audioSourceClass audioSourceForURL:url];
if (![source open:url])
return 0;
if (![source seekable])
return 0;
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[source seek:0 whence:SEEK_END];
long size = [source tell];
[source seek:0 whence:SEEK_SET];
void * data = malloc(size);
[source read:data amount:size];
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DUMBFILE * df = dumbfile_open_memory_and_free( data, size );
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if (!df)
{
ALog(@"Open failed for file: %@", [url absoluteString]);
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return NO;
}
NSMutableArray *tracks = [NSMutableArray array];
int i;
int subsongs = dumb_get_psm_subsong_count( df );
if ( subsongs ) {
dumbfile_close( df );
for (i = 0; i < subsongs; ++i) {
[tracks addObject:[NSURL URLWithString:[[url absoluteString] stringByAppendingFormat:@"#%i", i]]];
}
} else {
dumbfile_seek( df, 0, SEEK_SET );
DUH *duh;
NSString *ext = [[url pathExtension] lowercaseString];
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duh = dumb_read_any_quick(df, [ext isEqualToString:@"mod"] ? 0 : 1, 0);
dumbfile_close(df);
if ( duh ) {
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DumbCallbackData * data = [[DumbCallbackData alloc] init];
data->baseUrl = [url absoluteString];
data->tracks = tracks;
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dumb_it_scan_for_playable_orders( duh_get_it_sigdata( duh ), scanCallback, (__bridge void *)data );
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}
}
return tracks;
}
@end