- // Make sure we have big enough buffer
- static uint8_t * buffer;
- static int bufferSize;
-
- int newSize;
- newSize = ( title->width + 2 ) * (title->height + 2 ) * 4;
- if( bufferSize < newSize )
- {
- bufferSize = newSize;
- buffer = (uint8_t *) realloc( buffer, bufferSize );
- }
-
- hb_get_preview( handle, title, pictureIndex, buffer );
-
- // The image data returned by hb_get_preview is 4 bytes per pixel, BGRA format.
- // We'll copy that into an NSImage swapping it to ARGB in the process. Alpha is
- // ignored.
- int width = title->width + 2; // hblib adds a one-pixel border to the image
- int height = title->height + 2;
- int numPixels = width * height;
- NSBitmapFormat bitmapFormat = (NSBitmapFormat)NSAlphaFirstBitmapFormat;
- NSBitmapImageRep * imgrep = [[[NSBitmapImageRep alloc]
- initWithBitmapDataPlanes:nil
- pixelsWide:width
- pixelsHigh:height
- bitsPerSample:8
- samplesPerPixel:3 // ignore alpha
- hasAlpha:NO
- isPlanar:NO
- colorSpaceName:NSCalibratedRGBColorSpace
- bitmapFormat:bitmapFormat
- bytesPerRow:width * 4
- bitsPerPixel:32] autorelease];
-
- UInt32 * src = (UInt32 *)buffer;
- UInt32 * dst = (UInt32 *)[imgrep bitmapData];
- for (int i = 0; i < numPixels; i++)