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XeeQuicktimeLoader.m
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XeeQuicktimeLoader.m
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#import "XeeQuicktimeLoader.h"
#import "XeeBitmapImage.h"
//#define USE_CGIMAGE
static void XeeSetQTDepth(XeeImage *image,int qtdepth);
static OSErr XeeQTProgressFunc(short message,Fixed completeness,long refcon);
@implementation XeeQuicktimeImage
+(BOOL)canOpenFile:(NSString *)filename firstBlock:(NSData *)block attributes:(NSDictionary *)attrs;
{
if(
[[filename pathExtension] caseInsensitiveCompare:@"bmp"]==NSOrderedSame
||[attrs fileHFSTypeCode]=='BMP '||[attrs fileHFSTypeCode]=='BMP '
||[[filename pathExtension] caseInsensitiveCompare:@"tga"]==NSOrderedSame
||[attrs fileHFSTypeCode]=='TPIC'
||[[filename pathExtension] caseInsensitiveCompare:@"sgi"]==NSOrderedSame
||[[filename pathExtension] caseInsensitiveCompare:@"rgb"]==NSOrderedSame
||[attrs fileHFSTypeCode]=='.SGI'
||[[filename pathExtension] caseInsensitiveCompare:@"nef"]==NSOrderedSame
) return NO;// explicitly exclude BMP, TGA and SGI - what the hell, Quicktime?
return YES;
}
-(SEL)initLoader
{
gi=NULL;
NSURL *url=[NSURL fileURLWithPath:[self filename]];
FSRef fsref;
if(!CFURLGetFSRef((CFURLRef)url,&fsref)) return NULL;
FSSpec fsspec;
if(FSGetCatalogInfo(&fsref,kFSCatInfoNone,NULL,NULL,&fsspec,NULL)!=noErr) return NULL;
if(GetGraphicsImporterForFile(&fsspec,&gi)!=noErr) return NULL;
ImageDescriptionHandle desc;
if(GraphicsImportGetImageDescription(gi,&desc)!=noErr) return NULL;
width=(*desc)->width;
height=(*desc)->height;
[self setFormat:[[[NSString alloc] initWithBytes:(*desc)->name+1 length:(*desc)->name[0]
encoding:CFStringConvertEncodingToNSStringEncoding(CFStringGetSystemEncoding())] autorelease]];
int qtdepth=(*desc)->depth;
XeeSetQTDepth(self,qtdepth);
DisposeHandle((Handle)desc);
current_image=-1;
return @selector(loadNextImage);
}
-(void)deallocLoader
{
if(gi) CloseComponent(gi);
}
-(SEL)loadNextImage
{
unsigned long count;
GraphicsImportGetImageCount(gi,&count);
current_image++;
if(thumbonly)
{
if(current_image==0)
{
if(GraphicsImportSetImageIndexToThumbnail(gi)!=noErr)
if(GraphicsImportSetImageIndex(gi,1)!=noErr)
return NULL;
}
else
{
loaded=YES;
return NULL;
}
}
else
{
if(current_image==count)
{
loaded=YES;
return NULL;
}
else
{
if(GraphicsImportSetImageIndex(gi,current_image+1)!=noErr) return @selector(loadNextImage);
}
}
return @selector(loadImage);
}
-(SEL)loadImage
{
EnterMoviesOnThread(0);
struct ICMProgressProcRecord progrec={XeeQTProgressFunc,(long)self};
GraphicsImportSetProgressProc(gi,&progrec);
GraphicsImportSetQuality(gi,codecLosslessQuality);
ImageDescriptionHandle desc;
if(GraphicsImportGetImageDescription(gi,&desc)!=noErr) return @selector(loadNextImage);
int framewidth=(*desc)->width;
int frameheight=(*desc)->height;
int framedepth=(*desc)->depth;
current_height=frameheight;
DisposeHandle((Handle)desc);
#ifdef USE_CGIMAGE
// 10.4 code using CGImages. QT seems buggy and gets the size of the CGImage wrong.
CGImageRef cgimage;
if(GraphicsImportCreateCGImage(gi,&cgimage,kGraphicsImportCreateCGImageUsingCurrentSettings)!=noErr) return @selector(loadNextImage);
XeeBitmapImage *image;
if(framedepth>32&&framedepth!=40) image=[[[XeeBitmapImage alloc] initWithConvertedCGImage:cgimage type:XeeBitmapTypeLuma8] autorelease];
else image=[[[XeeBitmapImage alloc] initWithCGImage:cgimage] autorelease];
if(!image) return @selector(loadNextImage);
XeeSetQTDepth(image,framedepth);
[self addSubImage:image];
[image setCompleted];
CGImageRelease(cgimage);
#else
int type;
OSType pixelformat;
if(framedepth>32)
{
type=XeeBitmapTypeLuma8;
pixelformat=k8IndexedGrayPixelFormat;
}
//else if([format isEqual:@"JPEG"]&&[[NSUserDefaults standardUserDefaults] integerForKey:@"jpegYUV"]==1)
//{
// type=XeeBitmapTypeYUV422;
// pixelformat=k2vuyPixelFormat;
//}
else if(framedepth==32||framedepth==16)
{
pixelformat=k32ARGBPixelFormat;
type=XeeBitmapTypeARGB8;
}
else
{
type=XeeBitmapTypeRGB8;
pixelformat=k24RGBPixelFormat;
}
XeeBitmapImage *image=[[[XeeBitmapImage alloc] initWithType:type width:framewidth height:frameheight] autorelease];
if(!image) return @selector(loadNextImage);
XeeSetQTDepth(image,framedepth);
GWorldPtr gw;
Rect rect;
SetRect(&rect,0,0,framewidth,frameheight);
if(QTNewGWorldFromPtr(&gw,pixelformat,&rect,NULL,NULL,0,[image data],[image bytesPerRow])!=noErr) return @selector(loadNextImage);
if(GraphicsImportSetGWorld(gi,gw,NULL)==noErr)
{
// [self addSubImage:image];
if(GraphicsImportDraw(gi)==noErr)
{
//if(type==XeeBitmapTypeYUV422) [image fixYUVGamma];
if(type==XeeBitmapTypeLuma8)
{
unsigned long *ptr=(unsigned long *)[image data];
int n=[image bytesPerRow]*frameheight/4;
while(n--) *ptr=~*ptr++;
}
[self addSubImage:image];
[image setCompleted];
}
}
DisposeGWorld(gw);
#endif
ExitMoviesOnThread();
return @selector(loadNextImage);
}
-(XeeBitmapImage *)currentImage { return [subimages objectAtIndex:[subimages count]-1]; }
-(int)currentHeight { return current_height; }
+(void)load
{
EnterMovies();
}
+(NSArray *)fileTypes
{
return [NSArray arrayWithObjects:
@"jpg", // JPEG Image
@"jpeg",
@"jpe",
@"'JPEG'",
@"png", // Portable Network Graphics
@"'PNG '",
@"'PNGf'",
@"gif", // Graphics Interchange Format
@"'GIFf'",
@"'GIF '",
@"tif", // TIFF Image
@"tiff",
@"'TIFF'",
@"bmp", // Windows Bitmap Image
@"dib", //?
@"'BMP '",
@"'BMPf'",
@"'BMPp'",
@"psd", // Adobe Photoshop Image
@"'8BPS'",
@"tga", // Targa Image
@"'TPIC'",
@"jp2", // JPEG 2000 Image
@"'jp2 '",
@"pict", // PICT Image
@"pct",
@"pic",
@"'PICT'",
@"fpx", // FlashPix Image
@"'FPix'",
@"qtif", // Apple Quicktime Image
@"qti",
@"qif",
@"'qtif'",
@"sgi", // Silicon Graphics Image
@"'SGI '",
@"'.SGI'",
@"pntg", // Apple MacPaint image
@"'PNTG'",
@"mac", //?
nil
];
}
@end
static void XeeSetQTDepth(XeeImage *image,int qtdepth)
{
if(qtdepth<=8) [image setDepthIndexed:(1<<qtdepth)];
else if(qtdepth>32) [image setDepthGrey:qtdepth-32];
else if(qtdepth==15) [image setDepth:@"5:5:5 bit RGB" iconName:@"depth_rgb"];
else if(qtdepth==16) [image setDepth:@"1:5:5:5 bit ARGB" iconName:@"depth_rgba"];
else if(qtdepth==24) [image setDepthRGB:8];
else if(qtdepth==32) [image setDepthRGBA:8];
}
static OSErr XeeQTProgressFunc(short message,Fixed completeness,long refcon)
{
XeeQuicktimeImage *image=(XeeQuicktimeImage *)refcon; // ow ow ow, 64-bit issues!
if([image hasBeenStopped]) return codecAbortErr;
return noErr;
}