More general version of image filtering; reworked to be robust and easier to SSE

include/core/SkPaint.h

Index: include/core/SkPaint.h
diff --git a/include/core/SkPaint.h b/include/core/SkPaint.h
index d390ce29f38ce631b9453ee573515b1d8adca2da..daa317bd0c75d150ca58687e1eabd90ba2b875cf 100644
--- a/include/core/SkPaint.h
+++ b/include/core/SkPaint.h
@@ -43,6 +43,8 @@ typedef const SkGlyph& (*SkDrawCacheProc)(SkGlyphCache*, const char**,
 
 typedef const SkGlyph& (*SkMeasureCacheProc)(SkGlyphCache*, const char**);
 
+#define kBicubicFilterBitmap_Flag kHighQualityFilterBitmap_Flag
+
 /** \class SkPaint
 
     The SkPaint class holds the style and color information about how to draw
@@ -108,7 +110,7 @@ public:
         kAutoHinting_Flag     = 0x800,  //!< mask to force Freetype's autohinter
         kVerticalText_Flag    = 0x1000,
         kGenA8FromLCD_Flag    = 0x2000, // hack for GDI -- do not use if you can help it
-        kBicubicFilterBitmap_Flag = 0x4000, // temporary flag
+        kHighQualityFilterBitmap_Flag = 0x4000, // temporary flag
 
         // when adding extra flags, note that the fFlags member is specified
         // with a bit-width and you'll have to expand it.