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Diffstat (limited to 'src/pdf/SkPDFBitmap.h')
-rw-r--r-- | src/pdf/SkPDFBitmap.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/pdf/SkPDFBitmap.h b/src/pdf/SkPDFBitmap.h new file mode 100644 index 0000000000..922db8f1c1 --- /dev/null +++ b/src/pdf/SkPDFBitmap.h @@ -0,0 +1,45 @@ +/* + * Copyright 2015 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ +#ifndef SkPDFBitmap_DEFINED +#define SkPDFBitmap_DEFINED + +#include "SkPDFTypes.h" +#include "SkBitmap.h" + +/** + * SkPDFBitmap wraps a SkBitmap and serializes it as an image Xobject. + * It is designed to use a minimal amout of memory, aside from refing + * the bitmap's pixels, and its emitObject() does not cache any data. + * + * As of now, it only supports 8888 bitmaps (the most common case). + * + * The SkPDFBitmap::Create function will check the canon for duplicates. + */ +class SkPDFBitmap : public SkPDFObject { +public: + // Returns NULL on unsupported bitmap; + // TODO(halcanary): support other bitmap colortypes and replace + // SkPDFImage. + static SkPDFBitmap* Create(const SkBitmap&, const SkIRect& subset); + ~SkPDFBitmap(); + void emitObject(SkWStream*, SkPDFCatalog*) SK_OVERRIDE; + void addResources(SkTSet<SkPDFObject*>* resourceSet, + SkPDFCatalog* catalog) const SK_OVERRIDE; + bool equals(const SkBitmap& other) const { + return fBitmap.getGenerationID() == other.getGenerationID() && + fBitmap.pixelRefOrigin() == other.pixelRefOrigin() && + fBitmap.dimensions() == other.dimensions(); + } + +private: + const SkBitmap fBitmap; + const SkAutoTUnref<SkPDFObject> fSMask; + SkPDFBitmap(const SkBitmap&, SkPDFObject*); + void emitDict(SkWStream*, SkPDFCatalog*, size_t, bool) const; +}; + +#endif // SkPDFBitmap_DEFINED |