1 /* 2 * Copyright 2008 The Android Open Source Project 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 8 #ifndef SkMallocPixelRef_DEFINED 9 #define SkMallocPixelRef_DEFINED 10 11 #include "include/core/SkRefCnt.h" 12 #include "include/core/SkTypes.h" 13 14 #include <cstddef> 15 16 class SkData; 17 class SkPixelRef; 18 struct SkImageInfo; 19 20 /** We explicitly use the same allocator for our pixels that SkMask does, 21 so that we can freely assign memory allocated by one class to the other. 22 */ 23 namespace SkMallocPixelRef { 24 /** 25 * Return a new SkMallocPixelRef, automatically allocating storage for the 26 * pixels. If rowBytes are 0, an optimal value will be chosen automatically. 27 * If rowBytes is > 0, then it will be respected, or NULL will be returned 28 * if rowBytes is invalid for the specified info. 29 * 30 * All pixel bytes are zeroed. 31 * 32 * Returns NULL on failure. 33 */ 34 SK_API sk_sp<SkPixelRef> MakeAllocate(const SkImageInfo&, size_t rowBytes); 35 36 /** 37 * Return a new SkMallocPixelRef that will use the provided SkData and 38 * rowBytes as pixel storage. The SkData will be ref()ed and on 39 * destruction of the PixelRef, the SkData will be unref()ed. 40 * 41 * Returns NULL on failure. 42 */ 43 SK_API sk_sp<SkPixelRef> MakeWithData(const SkImageInfo&, size_t rowBytes, sk_sp<SkData> data); 44 } // namespace SkMallocPixelRef 45 #endif 46