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Add GIF loader.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@18339 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
alexm 2004-01-08 18:43:49 +00:00
parent 37d1cebcab
commit 15d198201b
7 changed files with 503 additions and 0 deletions
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25
Source/NSBitmapImageRep.m
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@ -32,6 +32,7 @@
#include "AppKit/NSBitmapImageRep.h"
#include "NSBitmapImageRep+GIF.h"
#include "NSBitmapImageRep+JPEG.h"
#include "NSBitmapImageRep+PNG.h"
#include "NSBitmapImageRep+PNM.h"
@ -108,6 +109,9 @@ static BOOL supports_lzw_compression = NO;
if ([self _bitmapIsJPEG: data])
return YES;
if ([self _bitmapIsGIF: data])
return YES;
image = NSTiffOpenDataRead ((char *)[data bytes], [data length]);
if (image != NULL)
@ -134,6 +138,9 @@ static BOOL supports_lzw_compression = NO;
types = [[NSMutableArray alloc] initWithObjects:
@"tiff", @"tif",
@"pnm", @"ppm",
#if HAVE_LIBUNGIF
@"gif",
#endif
#if HAVE_LIBJPEG
@"jpeg", @"jpg",
#endif
@ -235,6 +242,20 @@ static BOOL supports_lzw_compression = NO;
return a;
}
if ([self _bitmapIsGIF: imageData])
{
NSBitmapImageRep *rep;
NSArray *a;
rep=[[self alloc] _initBitmapFromGIF: imageData
errorMessage: NULL];
if (!rep)
return [NSArray array];
a = [NSArray arrayWithObject: rep];
DESTROY(rep);
return a;
}
image = NSTiffOpenDataRead((char *)[imageData bytes], [imageData length]);
if (image == NULL)
{
@ -282,6 +303,10 @@ static BOOL supports_lzw_compression = NO;
return [self _initBitmapFromJPEG: imageData
errorMessage: NULL];
if ([isa _bitmapIsGIF: imageData])
return [self _initBitmapFromGIF: imageData
errorMessage: NULL];
image = NSTiffOpenDataRead((char *)[imageData bytes], [imageData length]);
if (image == NULL)