| |
| /* |
| * Copyright 2008 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #ifndef SkMallocPixelRef_DEFINED |
| #define SkMallocPixelRef_DEFINED |
| |
| #include "SkPixelRef.h" |
| |
| /** We explicitly use the same allocator for our pixels that SkMask does, |
| so that we can freely assign memory allocated by one class to the other. |
| */ |
| class SkMallocPixelRef : public SkPixelRef { |
| public: |
| /** |
| * Return a new SkMallocPixelRef with the provided pixel storage, rowBytes, |
| * and optional colortable. The caller is responsible for managing the |
| * lifetime of the pixel storage buffer, as this pixelref will not try |
| * to delete it. |
| * |
| * The pixelref will ref() the colortable (if not NULL). |
| * |
| * Returns NULL on failure. |
| */ |
| static SkMallocPixelRef* NewDirect(const SkImageInfo&, void* addr, |
| size_t rowBytes, SkColorTable*); |
| |
| /** |
| * Return a new SkMallocPixelRef, automatically allocating storage for the |
| * pixels. |
| * |
| * If rowBytes is 0, an optimal value will be chosen automatically. |
| * If rowBytes is > 0, then it will be used, unless it is invald for the |
| * specified info, in which case NULL will be returned (failure). |
| * |
| * This pixelref will ref() the specified colortable (if not NULL). |
| * |
| * Returns NULL on failure. |
| */ |
| static SkMallocPixelRef* NewAllocate(const SkImageInfo& info, |
| size_t rowBytes, SkColorTable*); |
| |
| void* getAddr() const { return fStorage; } |
| |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMallocPixelRef) |
| |
| protected: |
| SkMallocPixelRef(const SkImageInfo&, void* addr, size_t rb, SkColorTable*, |
| bool ownPixels); |
| SkMallocPixelRef(SkFlattenableReadBuffer& buffer); |
| virtual ~SkMallocPixelRef(); |
| |
| virtual void* onLockPixels(SkColorTable**) SK_OVERRIDE; |
| virtual void onUnlockPixels() SK_OVERRIDE; |
| virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; |
| virtual size_t getAllocatedSizeInBytes() const SK_OVERRIDE; |
| |
| size_t rowBytes() const { return fRB; } |
| |
| private: |
| void* fStorage; |
| SkColorTable* fCTable; |
| size_t fRB; |
| const bool fOwnPixels; |
| |
| typedef SkPixelRef INHERITED; |
| }; |
| |
| |
| #endif |