1 /* 2 * Copyright 2015 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 #ifndef SkPDFBitmap_DEFINED 8 #define SkPDFBitmap_DEFINED 9 10 #include "SkPDFTypes.h" 11 #include "SkBitmap.h" 12 13 class SkPDFCanon; 14 15 /** 16 * SkPDFBitmap wraps a SkBitmap and serializes it as an image Xobject. 17 * It is designed to use a minimal amout of memory, aside from refing 18 * the bitmap's pixels, and its emitObject() does not cache any data. 19 * 20 * If !bitmap.isImmutable(), then a copy of the bitmap must be made; 21 * there is no way around this. 22 * 23 * The SkPDFBitmap::Create function will check the canon for duplicates. 24 */ 25 class SkPDFBitmap : public SkPDFObject { 26 public: 27 // Returns NULL on unsupported bitmap; 28 static SkPDFBitmap* Create(SkPDFCanon*, const SkBitmap&); equals(const SkBitmap & other)29 bool equals(const SkBitmap& other) const { 30 return fBitmap.getGenerationID() == other.getGenerationID() && 31 fBitmap.pixelRefOrigin() == other.pixelRefOrigin() && 32 fBitmap.dimensions() == other.dimensions(); 33 } 34 35 protected: 36 const SkBitmap fBitmap; SkPDFBitmap(const SkBitmap & bm)37 SkPDFBitmap(const SkBitmap& bm) : fBitmap(bm) {} 38 }; 39 40 #endif // SkPDFBitmap_DEFINED 41