Implement DPI for perspective bitmaps in PDF - we save the bitmap at the resolution requested.

include/pdf/SkPDFDevice.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkPDFDevice_DEFINED
@@ skipping 173 matching lines @@
         return fInitialTransform;
     }
 
     /** Returns a SkPDFGlyphSetMap which represents glyph usage of every font
      *  that shows on this device.
      */
     const SkPDFGlyphSetMap& getFontGlyphUsage() const {
         return *(fFontGlyphUsage.get());
     }
 
-protected:
-    virtual bool onReadPixels(const SkBitmap& bitmap, int x, int y,
-                              SkCanvas::Config8888) SK_OVERRIDE;
-
-    virtual bool allowImageFilter(SkImageFilter*) SK_OVERRIDE;
 
     /**
      *  rasterDpi - the DPI at which features without native PDF support
      *              will be rasterized (e.g. draw image with perspective,
      *              draw text with perspective, ...)
      *              A larger DPI would create a PDF that reflects the original
      *              intent with better fidelity, but it can make for larger
      *              PDF files too, which would use more memory while rendering,
      *              and it would be slower to be processed or sent online or
      *              to printer.
      */
     void setRasterDpi(SkScalar rasterDpi) {
         fRasterDpi = rasterDpi;
     }
 
+protected:
+    virtual bool onReadPixels(const SkBitmap& bitmap, int x, int y,
+                              SkCanvas::Config8888) SK_OVERRIDE;
+
+    virtual bool allowImageFilter(SkImageFilter*) SK_OVERRIDE;
+
 private:
     // TODO(vandebo): push most of SkPDFDevice's state into a core object in
     // order to get the right access levels without using friend.
     friend class ScopedContentEntry;
 
     SkISize fPageSize;
     SkISize fContentSize;
     SkMatrix fInitialTransform;
     SkClipStack fExistingClipStack;
     SkRegion fExistingClipRegion;
@@ skipping 105 matching lines @@
 
     typedef SkBitmapDevice INHERITED;
 
     // TODO(edisonn): Only SkDocument_PDF and SkPDFImageShader should be able to create
     // an SkPDFDevice
     //friend class SkDocument_PDF;
     //friend class SkPDFImageShader;
 };
 
 #endif