SkPDF: Implement drawImage*() properly

src/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
 #define SkPDFDevice_DEFINED
 
@@ skipping 81 matching lines @@
     void drawRRect(const SkDraw&, const SkRRect& rr, const SkPaint& paint) override;
     void drawPath(const SkDraw&, const SkPath& origpath,
                   const SkPaint& paint, const SkMatrix* prePathMatrix,
                   bool pathIsMutable) override;
     void drawBitmapRect(const SkDraw& draw, const SkBitmap& bitmap, const SkRect* src,
                         const SkRect& dst, const SkPaint&, SkCanvas::SrcRectConstraint) override;
     void drawBitmap(const SkDraw&, const SkBitmap& bitmap,
                     const SkMatrix& matrix, const SkPaint&) override;
     void drawSprite(const SkDraw&, const SkBitmap& bitmap, int x, int y,
                     const SkPaint& paint) override;
+    void drawImage(const SkDraw&,
+                   const SkImage*,
+                   SkScalar x,
+                   SkScalar y,
+                   const SkPaint&) override;
+    void drawImageRect(const SkDraw&,
+                       const SkImage*,
+                       const SkRect* src,
+                       const SkRect& dst,
+                       const SkPaint&,
+                       SkCanvas::SrcRectConstraint) override;
     void drawText(const SkDraw&, const void* text, size_t len,
                   SkScalar x, SkScalar y, const SkPaint&) override;
     void drawPosText(const SkDraw&, const void* text, size_t len,
                      const SkScalar pos[], int scalarsPerPos,
                      const SkPoint& offset, const SkPaint&) override;
     void drawVertices(const SkDraw&, SkCanvas::VertexMode,
                       int vertexCount, const SkPoint verts[],
                       const SkPoint texs[], const SkColor colors[],
                       SkXfermode* xmode, const uint16_t indices[],
                       int indexCount, const SkPaint& paint) override;
@@ skipping 160 matching lines @@
                                             const SkPaint& paint,
                                             bool hasText,
                                             GraphicStateEntry* entry);
     int addGraphicStateResource(SkPDFObject* gs);
     int addXObjectResource(SkPDFObject* xObject);
 
     void updateFont(const SkPaint& paint, uint16_t glyphID, ContentEntry* contentEntry);
     int getFontResourceIndex(SkTypeface* typeface, uint16_t glyphID);
 
     void internalDrawPaint(const SkPaint& paint, ContentEntry* contentEntry);
-    void internalDrawBitmap(const SkMatrix& matrix,
-                            const SkClipStack* clipStack,
-                            const SkRegion& clipRegion,
-                            const SkBitmap& bitmap,
-                            const SkIRect* srcRect,
-                            const SkPaint& paint);
+    void internalDrawImage(const SkMatrix& matrix,
+                           const SkClipStack* clipStack,
+                           const SkRegion& clipRegion,
+                           const SkImage* image,
+                           const SkIRect* srcRect,
+                           const SkPaint& paint);
 
     /** Helper method for copyContentToData. It is responsible for copying the
      *  list of content entries |entry| to |data|.
      */
     void copyContentEntriesToData(ContentEntry* entry, SkWStream* data) const;
 
     bool handleInversePath(const SkDraw& d, const SkPath& origPath,
                            const SkPaint& paint, bool pathIsMutable,
                            const SkMatrix* prePathMatrix = nullptr);
     bool handlePointAnnotation(const SkPoint* points, size_t count,
                                const SkMatrix& matrix, SkAnnotation* annot);
     bool handlePathAnnotation(const SkPath& path, const SkDraw& d,
                               SkAnnotation* annot);
 
     typedef SkBaseDevice INHERITED;
 
     // TODO(edisonn): Only SkDocument_PDF and SkPDFImageShader should be able to create
     // an SkPDFDevice
     //friend class SkDocument_PDF;
     //friend class SkPDFImageShader;
 };
 
 #endif