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8da8a7add8
from -copyWithZone: to -mutableCopyWithZone:.
* Tests/gui/NSBitmapImageRep/testcopy.m: Test for this change
Patch by Josh Freeman <tedge>.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@38301 72102866-910b-0410-8b05-ffd578937521
37 lines
1.6 KiB
Objective-C
37 lines
1.6 KiB
Objective-C
#import "ObjectTesting.h"
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#import <Foundation/NSArray.h>
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#import <Foundation/NSAutoreleasePool.h>
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#import <AppKit/NSApplication.h>
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#import <AppKit/NSBitmapImageRep.h>
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#import <AppKit/NSGraphics.h>
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int main()
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{
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NSAutoreleasePool *arp = [NSAutoreleasePool new];
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NSBitmapImageRep *origBitmap, *copy1Bitmap, *copy2Bitmap;
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origBitmap = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
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pixelsWide: 4
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pixelsHigh: 4
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bitsPerSample: 8
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samplesPerPixel: 4
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hasAlpha: YES
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isPlanar: NO
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colorSpaceName: NSCalibratedRGBColorSpace
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bytesPerRow: 0
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bitsPerPixel: 0];
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copy1Bitmap = [origBitmap copy];
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// Copying immutable NSData reuses the data pointer instead of allocating new memory, so
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// copying a bitmap with immutable _imageData causes both bitmaps to point to the same memory;
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// Writing to either copy's pixels will overwrite both, corrupting the image data
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copy2Bitmap = [copy1Bitmap copy];
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pass([copy1Bitmap bitmapData] != [copy2Bitmap bitmapData],
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"Copied bitmaps have a different image data pointer - could cause image data corruption.");
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[arp release];
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return 0;
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}
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