Version 2.5.6

README

@@ -51,7 +51,7 @@ NOTES
 
 Version 2.x of the PDF reader/viewer code was originally developed
 and tested under Xcode 3.2.6, LLVM 1.7, iOS 4.3.5, iOS 4.2.1 with
-current development and testing under Xcode 4.3, Clang 3.1, iOS 5.
+current development and testing under Xcode 4.3.2, LLVM 3.1, iOS 5.
 The code uses manual memory management and will continue to do so.
 
 The overall PDF reader/viewer functionality is encapsulated in the
@@ -145,6 +145,11 @@ READER_STANDALONE - If FALSE, a "Done" button is added to the toolbar
 and the -dismissReaderViewController: delegate method is messaged when
 it is tapped.
 
+READER_DISABLE_RETINA - If TRUE, sets the CATiledLayer contentScale
+to 1.0f. This effectively disables retina support and results in
+non-retina device rendering speeds on retina display devices at
+the loss of retina display quality.
+
 ReaderDocument Archiving
 ------------------------
 
@@ -224,6 +229,11 @@ HISTORY
 	- Bug fix to PDF link handling with cropboxed PDF files.
 	- Some performance improvements on iPad 3rd generation.
 
+2012-04-16: Version 2.5.6
+
+	- Now loads and decodes thumbnail PNGs on a background thread.
+	- Added READER_DISABLE_RETINA #define performance option.
+
 CONTACT INFO
 ============
 

Reader-Info.plist

@@ -26,9 +26,9 @@
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>2.5.5</string>
+	<string>2.5.6</string>
 	<key>CFBundleShortVersionString</key>
-	<string>2.5.5</string>
+	<string>2.5.6</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UIPrerenderedIcon</key>

Sources/ReaderConstants.h

@@ -1,6 +1,6 @@
 //
 //	ReaderConstants.h
-//	Reader v2.5.4
+//	Reader v2.5.6
 //
 //	Created by Julius Oklamcak on 2011-07-01.
 //	Copyright © 2011-2012 Julius Oklamcak. All rights reserved.
@@ -29,6 +29,7 @@
 #define READER_ENABLE_MAIL TRUE
 #define READER_ENABLE_PRINT TRUE
 #define READER_ENABLE_THUMBS TRUE
+#define READER_DISABLE_RETINA FALSE
 #define READER_DISABLE_IDLE FALSE
 #define READER_SHOW_SHADOWS TRUE
 #define READER_STANDALONE FALSE

Sources/ReaderContentPage.m

@@ -1,6 +1,6 @@
 //
 //	ReaderContentPage.m
-//	Reader v2.5.5
+//	Reader v2.5.6
 //
 //	Created by Julius Oklamcak on 2011-07-01.
 //	Copyright © 2011-2012 Julius Oklamcak. All rights reserved.
@@ -23,6 +23,7 @@
 //	CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //
 
+#import "ReaderConstants.h"
 #import "ReaderContentPage.h"
 #import "ReaderContentTile.h"
 #import "CGPDFDocument.h"
@@ -552,6 +553,19 @@ - (void)dealloc
 	[super dealloc];
 }
 
+#if (READER_DISABLE_RETINA == TRUE) // Option
+
+- (void)didMoveToWindow
+{
+#ifdef DEBUGX
+	NSLog(@"%s", __FUNCTION__);
+#endif
+
+	self.contentScaleFactor = 1.0f; // Override scale factor
+}
+
+#endif // end of READER_DISABLE_RETINA Option
+
 /*
 - (void)layoutSubviews
 {

Sources/ReaderThumbFetch.m

@@ -1,6 +1,6 @@
 //
 //	ReaderThumbFetch.m
-//	Reader v2.5.4
+//	Reader v2.5.6
 //
 //	Created by Julius Oklamcak on 2011-09-01.
 //	Copyright © 2011-2012 Julius Oklamcak. All rights reserved.
@@ -134,7 +134,15 @@ - (void)main
 
 		CGImageRelease(imageRef); // Release the CGImage reference from the above thumb load code
 
-		[[ReaderThumbCache sharedInstance] setObject:image forKey:request.cacheKey]; // Update cache
+		UIGraphicsBeginImageContextWithOptions(image.size, YES, request.scale); // Graphics context
+
+		[image drawAtPoint:CGPointZero]; // Decode and draw the image on this background thread
+
+		UIImage *decoded = UIGraphicsGetImageFromCurrentImageContext(); // Newly decoded image
+
+		UIGraphicsEndImageContext(); // Cleanup after the bitmap-based graphics drawing context
+
+		[[ReaderThumbCache sharedInstance] setObject:decoded forKey:request.cacheKey]; // Update cache
 
 		if (self.isCancelled == NO) // Show the image in the target thumb view on the main thread
 		{
@@ -144,7 +152,7 @@ - (void)main
 
 			dispatch_async(dispatch_get_main_queue(), // Queue image show on main thread
 			^{
-				if (thumbView.targetTag == targetTag) [thumbView showImage:image];
+				if (thumbView.targetTag == targetTag) [thumbView showImage:decoded];
 			});
 		}
 	}