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Work in progress. Everything's implemented, though not everything is …
…working; the output directory gets created, but not output files.
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Peter Hosey
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Peter Hosey
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Oct 29, 2011
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| // | ||
| // BundleResourceSupport.h | ||
| // icon-extract | ||
| // | ||
| // Created by Peter Hosey on 2011-10-29. | ||
| // Copyright (c) 2011 Peter Hosey. All rights reserved. | ||
| // | ||
|
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| #pragma options align=packed | ||
| struct ResourceIDPair { | ||
| ResID localID; | ||
| ResID resourceID; | ||
| }; | ||
|
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| struct BundleLocalIDToToResourceIDMappingList { | ||
| ResType resourceType; //In the file reference mapping, always 'FREF' | ||
| UInt16 mappingCount; | ||
| struct ResourceIDPair mappings[1]; | ||
| }; | ||
| struct BundleResource { | ||
| ResType applicationSignature; | ||
| ResID applicationSignatureResourceID; | ||
| UInt16 arrayCount; | ||
| struct BundleLocalIDToToResourceIDMappingList iconMappingList; | ||
| struct BundleLocalIDToToResourceIDMappingList frefMappingList; | ||
| }; | ||
| #pragma options align=reset | ||
|
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| extern void PRHInstallBundleResourceFlipper(void); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| // | ||
| // BundleResourceSupport.m | ||
| // icon-extract | ||
| // | ||
| // Created by Peter Hosey on 2011-10-29. | ||
| // Copyright (c) 2011 Peter Hosey. All rights reserved. | ||
| // | ||
|
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| #import "BundleResourceSupport.h" | ||
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| static OSStatus flipBundleMembers( | ||
| OSType dataDomain, | ||
| OSType dataType, | ||
| SInt16 id, | ||
| void *dataPtr, | ||
| ByteCount dataSize, | ||
| Boolean currentlyNative, | ||
| void *refcon | ||
| ); | ||
|
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| extern void PRHInstallBundleResourceFlipper(void) { | ||
| static dispatch_once_t onceToken; | ||
| dispatch_once(&onceToken, ^{ | ||
| CoreEndianInstallFlipper(kCoreEndianResourceManagerDomain, 'BNDL', flipBundleMembers, NULL); | ||
| }); | ||
| }; | ||
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| static inline void swapAccordingToSize(void *ptr, size_t size) { | ||
| switch(size) { | ||
| case 1: | ||
| break; | ||
| case 2:; | ||
| UInt16 *ptr16 = ptr; | ||
| *ptr16 = OSSwapInt16(*ptr16); | ||
| break; | ||
| case 4:; | ||
| UInt32 *ptr32 = ptr; | ||
| *ptr32 = OSSwapInt32(*ptr32); | ||
| break; | ||
| case 8:; | ||
| UInt64 *ptr64 = ptr; | ||
| *ptr64 = OSSwapInt64(*ptr64); | ||
| break; | ||
| } | ||
| } | ||
| #define IF_WITHIN_RANGE(start, member, dataSize) \ | ||
| if (((((void *)&(member)) - (void *)start) + sizeof(member)) <= dataSize) | ||
| #define SWAP_IF_WITHIN_RANGE(start, member, dataSize) do{\ | ||
| if (((((void *)&(member)) - (void *)start) + sizeof(member)) <= dataSize) { \ | ||
| swapAccordingToSize(&(member), sizeof(member)); \ | ||
| swapped = true; \ | ||
| } else \ | ||
| swapped = false; \ | ||
| }while(0) | ||
|
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| static bool swapMembersInMappingList(struct BundleResource *resPtr, struct BundleLocalIDToToResourceIDMappingList *mappingListPtr, ByteCount dataSize, bool currentlyNative) { | ||
| void *dataPtr = resPtr; | ||
| bool swapped = true; | ||
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| size_t expectedSizeFromIconMappingListStart = dataSize - ((void *)mappingListPtr - dataPtr); | ||
| SWAP_IF_WITHIN_RANGE(mappingListPtr, mappingListPtr->resourceType, expectedSizeFromIconMappingListStart); | ||
| UInt16 mappingCount = 0; | ||
| IF_WITHIN_RANGE(mappingListPtr, mappingListPtr->mappingCount, expectedSizeFromIconMappingListStart) { | ||
| mappingCount = currentlyNative ? mappingListPtr->mappingCount : OSSwapInt16(mappingListPtr->mappingCount); | ||
| } | ||
| SWAP_IF_WITHIN_RANGE(mappingListPtr, mappingListPtr->mappingCount, expectedSizeFromIconMappingListStart); | ||
|
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| struct ResourceIDPair *mappingsPtr = mappingListPtr->mappings; | ||
| size_t expectedSizeFromIconMappingsStart = dataSize - ((void *)mappingsPtr - dataPtr); | ||
| for (UInt16 i = 0; i < mappingCount; ++i) { | ||
| SWAP_IF_WITHIN_RANGE(mappingsPtr, mappingsPtr[i].localID, expectedSizeFromIconMappingsStart); | ||
| SWAP_IF_WITHIN_RANGE(mappingsPtr, mappingsPtr[i].resourceID, expectedSizeFromIconMappingsStart); | ||
| } | ||
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| return swapped; | ||
| } | ||
|
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| static OSStatus flipBundleMembers( | ||
| OSType dataDomain, | ||
| OSType dataType, | ||
| SInt16 id, | ||
| void *dataPtr, | ||
| ByteCount dataSize, | ||
| Boolean currentlyNative, | ||
| void *refcon | ||
| ) { | ||
| bool swapped = true; | ||
| struct BundleResource *resPtr = dataPtr; | ||
| SWAP_IF_WITHIN_RANGE(resPtr, resPtr->applicationSignature, dataSize); | ||
| SWAP_IF_WITHIN_RANGE(resPtr, resPtr->applicationSignatureResourceID, dataSize); | ||
| SWAP_IF_WITHIN_RANGE(resPtr, resPtr->arrayCount, dataSize); | ||
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| if (swapped) { | ||
| swapped = swapMembersInMappingList(resPtr, &(resPtr->iconMappingList), dataSize, currentlyNative); | ||
| if (swapped) | ||
| swapped = swapMembersInMappingList(resPtr, &(resPtr->frefMappingList), dataSize, currentlyNative); | ||
| } | ||
|
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| return noErr; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| // | ||
| // PRHExtractIconFromFileOperation.h | ||
| // icon-extract | ||
| // | ||
| // Created by Peter Hosey on 2011-10-29. | ||
| // Copyright (c) 2011 Peter Hosey. All rights reserved. | ||
| // | ||
|
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| @interface PRHExtractIconsFromFileOperation : NSOperation | ||
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| @property(copy) NSURL *sourceURL; | ||
| @property(copy) NSURL *destinationDirectoryURL; | ||
|
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| @end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| // | ||
| // PRHExtractIconFromFileOperation.m | ||
| // icon-extract | ||
| // | ||
| // Created by Peter Hosey on 2011-10-29. | ||
| // Copyright (c) 2011 Peter Hosey. All rights reserved. | ||
| // | ||
|
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| #import "PRHExtractIconsFromFileOperation.h" | ||
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| #import "PRHResourceEnumerator.h" | ||
| #import "BundleResourceSupport.h" | ||
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| @implementation PRHExtractIconsFromFileOperation | ||
| { | ||
| FSRef sourceRef; | ||
| NSMutableData *iconFamilyElementsData; //The “elements” member of the IconFamilyResource structure. | ||
| NSString *destinationFilenameFormat; | ||
| } | ||
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| @synthesize sourceURL; | ||
| @synthesize destinationDirectoryURL; | ||
|
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| - (NSData *) dataForResourceWithType:(ResType)type ID:(ResID)ID { | ||
| NSData *data = nil; | ||
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| Handle resH = Get1Resource(type, ID); | ||
| if (resH) { | ||
| LoadResource(resH); | ||
|
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| HLock(resH); | ||
| data = [NSData dataWithBytes:*resH length:GetHandleSize(resH)]; | ||
| HUnlock(resH); | ||
| } | ||
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| return data; | ||
| } | ||
| - (OSStatus) extractExistingIconFamilyWithID:(ResID)ID { | ||
| NSData *icnsData = [self dataForResourceWithType:kIconFamilyType ID:ID]; | ||
| iconFamilyElementsData = [icnsData mutableCopy]; | ||
| return ResError(); | ||
| } | ||
| - (OSStatus) extractIconOfType:(ResType)type ID:(ResID)ID { | ||
| NSData *data = [self dataForResourceWithType:type ID:ID]; | ||
| OSStatus err = data ? noErr : ResError(); | ||
| if (data) { | ||
| [iconFamilyElementsData appendBytes:&type length:sizeof(ResType)]; | ||
| SInt32 size = (SInt32)OSSwapHostToBigInt32([data length]); | ||
| [iconFamilyElementsData appendBytes:&size length:sizeof(size)]; | ||
| [iconFamilyElementsData appendData:data]; | ||
| } | ||
| return err; | ||
| } | ||
| - (OSStatus) extractAllIconsWithID:(ResID)ID { | ||
| OSStatus err = noErr; | ||
|
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| err = [self extractExistingIconFamilyWithID:ID]; | ||
|
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| if (err == noErr) | ||
| err = [self extractIconOfType:kThumbnail32BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kThumbnail8BitMask ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kHuge32BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kHuge8BitMask ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kHuge8BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kHuge4BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kHuge1BitMask ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kLarge32BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kLarge8BitMask ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kLarge8BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kLarge4BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kLarge1BitMask ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kSmall32BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kSmall8BitMask ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kSmall8BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kSmall4BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kSmall1BitMask ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kMini8BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kMini4BitData ID:ID]; | ||
| if (err == noErr) | ||
| err = [self extractIconOfType:kMini1BitMask ID:ID]; | ||
|
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| return err; | ||
| } | ||
| - (OSStatus) extractIconsFromForkName:(struct HFSUniStr255 *)forkName { | ||
| ResFileRefNum refnum; | ||
| OSStatus err; | ||
| err = FSOpenResourceFile(&sourceRef, forkName->length, forkName->unicode, fsRdPerm, &refnum); | ||
| if (err != noErr) { | ||
| if (err != eofErr) | ||
| NSLog(@"FSOpenResourceFile returned %li/%s", (long)err, GetMacOSStatusCommentString(err)); | ||
| return err; | ||
| } | ||
|
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| NSMutableSet *processedIconResourceIDs = [NSMutableSet new]; | ||
|
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| PRHResourceEnumerator *bundlesEnum = [PRHResourceEnumerator newWithResourceType:'BNDL']; | ||
| for (PRHResource *bundleResource in bundlesEnum) { | ||
| const struct BundleResource *bundlePtr = [bundleResource.data bytes]; | ||
| const struct ResourceIDPair *mappings = bundlePtr->iconMappingList.mappings; | ||
| for (UInt16 i = 0; i < bundlePtr->iconMappingList.mappingCount; ++i) { | ||
| const ResID iconResourceID = mappings[i].resourceID; | ||
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| iconFamilyElementsData = [NSMutableData new]; | ||
| [self extractAllIconsWithID:iconResourceID]; | ||
| [processedIconResourceIDs addObject:[NSNumber numberWithShort:iconResourceID]]; | ||
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| NSString *destinationFilename = [NSString stringWithFormat:destinationFilenameFormat, (__bridge_transfer NSString *)UTCreateStringForOSType('BNDL'), iconResourceID]; | ||
| NSURL *destinationURL = [self.destinationDirectoryURL URLByAppendingPathComponent:destinationFilename isDirectory:NO]; | ||
| NSError *error = nil; | ||
| [iconFamilyElementsData writeToURL:destinationURL options:NSDataWritingAtomic error:&error]; | ||
| NSLog(@"Wrote icons found by %@ to %@: error is %@", bundleResource, destinationURL, error); | ||
| } | ||
| } | ||
|
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| PRHResourceEnumerator *modernIconsEnum = [PRHResourceEnumerator newWithResourceType:kIconFamilyType]; | ||
| PRHResource *iconResource; | ||
| for (iconResource in modernIconsEnum) { | ||
| if (![processedIconResourceIDs containsObject:[NSNumber numberWithShort:iconResource.ID]]) | ||
| { | ||
| iconFamilyElementsData = [NSMutableData new]; | ||
| [self extractAllIconsWithID:iconResource.ID]; | ||
| [processedIconResourceIDs addObject:[NSNumber numberWithShort:iconResource.ID]]; | ||
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| NSString *destinationFilename = [NSString stringWithFormat:destinationFilenameFormat, (__bridge_transfer NSString *)UTCreateStringForOSType(kIconFamilyType), iconResource.ID]; | ||
| NSURL *destinationURL = [self.destinationDirectoryURL URLByAppendingPathComponent:destinationFilename isDirectory:NO]; | ||
| NSError *error = nil; | ||
| [iconFamilyElementsData writeToURL:destinationURL options:NSDataWritingAtomic error:&error]; | ||
| NSLog(@"Wrote icons found by %@ to %@: error is %@", iconResource, destinationURL, error); | ||
| } | ||
| } | ||
|
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| PRHResourceEnumerator *eightBitIconsEnum = [PRHResourceEnumerator newWithResourceType:kLarge8BitData]; | ||
| for (iconResource in eightBitIconsEnum) { | ||
| if (![processedIconResourceIDs containsObject:[NSNumber numberWithShort:iconResource.ID]]) | ||
| { | ||
| iconFamilyElementsData = [NSMutableData new]; | ||
| [self extractAllIconsWithID:iconResource.ID]; | ||
| [processedIconResourceIDs addObject:[NSNumber numberWithShort:iconResource.ID]]; | ||
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| NSString *destinationFilename = [NSString stringWithFormat:destinationFilenameFormat, (__bridge_transfer NSString *)UTCreateStringForOSType(kLarge8BitData), iconResource.ID]; | ||
| NSURL *destinationURL = [self.destinationDirectoryURL URLByAppendingPathComponent:destinationFilename isDirectory:NO]; | ||
| NSError *error = nil; | ||
| [iconFamilyElementsData writeToURL:destinationURL options:NSDataWritingAtomic error:&error]; | ||
| NSLog(@"Wrote icons found by %@ to %@: error is %@", iconResource, destinationURL, error); | ||
| } | ||
| } | ||
|
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| CloseResFile(refnum); | ||
| err = ResError(); | ||
| return err; | ||
| } | ||
| - (void) main { | ||
| NSLog(@"%s starting", __func__); | ||
| bool success = CFURLGetFSRef((__bridge CFURLRef)self.sourceURL, &sourceRef); | ||
| if (!success) return; | ||
|
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| NSString *sourceFilename = [self.sourceURL lastPathComponent]; | ||
| NSString *sourceBaseFilename = [sourceFilename stringByDeletingPathExtension]; | ||
| destinationFilenameFormat = [sourceBaseFilename stringByAppendingString:@"-%@-%hd.icns"]; | ||
|
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| OSStatus err; | ||
| struct HFSUniStr255 forkName; | ||
|
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| err = FSGetResourceForkName(&forkName); | ||
| [self extractIconsFromForkName:&forkName]; | ||
| err = FSGetDataForkName(&forkName); | ||
| [self extractIconsFromForkName:&forkName]; | ||
|
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| destinationFilenameFormat = nil; | ||
| NSLog(@"%s finished", __func__); | ||
| } | ||
|
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| @end |
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