Added utility functions and iOS ports of SkWindow, SkOSFile, SkFontHost, and SkImageDecoder

the iOSSampleApp in experimental currently includes all the following files but only uses SkOSWindow_iOS and SkOSFile_iOS
http://codereview.appspot.com/4657047/


git-svn-id: http://skia.googlecode.com/svn/trunk@1706 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 34 insertions, 0 deletions

diff --git a/include/utils/ios/SkStream_NSData.h b/include/utils/ios/SkStream_NSData.h
new file mode 100755
index 0000000000..af0004f991
--- /dev/null
+++ b/include/utils/ios/SkStream_NSData.h
@@ -0,0 +1,34 @@
+#ifndef SkStream_NSData_DEFINED
+#define SkStream_NSData_DEFINED
+
+#import <UIKit/UIKit.h>
+#include "SkStream.h"
+
+/** Returns an NSData with a copy of the stream's data. The caller must call
+    retain if it intends to keep the data object beyond the current stack-frame
+    (i.e. internally we're calling [NSData dataWithBytes...]
+ */
+NSData* NSData_dataWithStream(SkStream* stream);
+
+/** Returns an NSData from the named resource (from main bundle).
+    The caller must call retain if it intends to keep the data object beyond
+    the current stack-frame
+    (i.e. internally we're calling [NSData dataWithContentsOfMappedFile...]
+ */
+NSData* NSData_dataFromResource(const char name[], const char suffix[]);
+
+/** Wrap a stream around NSData.
+ */
+class SkStream_NSData : public SkMemoryStream {
+public:
+            SkStream_NSData(NSData* data);
+    virtual ~SkStream_NSData();
+    
+    static SkStream_NSData* CreateFromResource(const char name[],
+                                               const char suffix[]);
+
+private:
+    NSData* fNSData;
+};
+
+#endif