reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef SkMallocPixelRef_DEFINED |
| 18 | #define SkMallocPixelRef_DEFINED |
| 19 | |
| 20 | #include "SkPixelRef.h" |
| 21 | |
| 22 | /** We explicitly use the same allocator for our pixels that SkMask does, |
| 23 | so that we can freely assign memory allocated by one class to the other. |
| 24 | */ |
| 25 | class SkMallocPixelRef : public SkPixelRef { |
| 26 | public: |
| 27 | /** Allocate the specified buffer for pixels. The memory is freed when the |
| 28 | last owner of this pixelref is gone. |
| 29 | */ |
| 30 | SkMallocPixelRef(void* addr, size_t size, SkColorTable* ctable); |
| 31 | virtual ~SkMallocPixelRef(); |
| 32 | |
| 33 | //! Return the allocation size for the pixels |
| 34 | size_t getSize() const { return fSize; } |
| 35 | |
| 36 | // overrides from SkPixelRef |
| 37 | virtual void flatten(SkFlattenableWriteBuffer&) const; |
| 38 | virtual Factory getFactory() const { |
| 39 | return Create; |
| 40 | } |
| 41 | static SkPixelRef* Create(SkFlattenableReadBuffer& buffer) { |
| 42 | return SkNEW_ARGS(SkMallocPixelRef, (buffer)); |
| 43 | } |
| 44 | |
| 45 | protected: |
| 46 | // overrides from SkPixelRef |
| 47 | virtual void* onLockPixels(SkColorTable**); |
| 48 | virtual void onUnlockPixels(); |
| 49 | |
| 50 | SkMallocPixelRef(SkFlattenableReadBuffer& buffer); |
| 51 | |
| 52 | private: |
| 53 | void* fStorage; |
| 54 | size_t fSize; |
| 55 | SkColorTable* fCTable; |
| 56 | |
| 57 | typedef SkPixelRef INHERITED; |
| 58 | }; |
| 59 | |
| 60 | #endif |