The Tor Browser / file comparison
comparison: gfx/skia/trunk/include/core/SkMallocPixelRef.h
gfx/skia/trunk/include/core/SkMallocPixelRef.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:2614e0ab8d2a |
|---|---|
| 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 | |
| 9 #ifndef SkMallocPixelRef_DEFINED | |
| 10 #define SkMallocPixelRef_DEFINED | |
| 11 | |
| 12 #include "SkPixelRef.h" | |
| 13 | |
| 14 /** We explicitly use the same allocator for our pixels that SkMask does, | |
| 15 so that we can freely assign memory allocated by one class to the other. | |
| 16 */ | |
| 17 class SK_API SkMallocPixelRef : public SkPixelRef { | |
| 18 public: | |
| 19 SK_DECLARE_INST_COUNT(SkMallocPixelRef) | |
| 20 /** | |
| 21 * Return a new SkMallocPixelRef with the provided pixel storage, rowBytes, | |
| 22 * and optional colortable. The caller is responsible for managing the | |
| 23 * lifetime of the pixel storage buffer, as this pixelref will not try | |
| 24 * to delete it. | |
| 25 * | |
| 26 * The pixelref will ref() the colortable (if not NULL). | |
| 27 * | |
| 28 * Returns NULL on failure. | |
| 29 */ | |
| 30 static SkMallocPixelRef* NewDirect(const SkImageInfo&, void* addr, | |
| 31 size_t rowBytes, SkColorTable*); | |
| 32 | |
| 33 /** | |
| 34 * Return a new SkMallocPixelRef, automatically allocating storage for the | |
| 35 * pixels. If rowBytes are 0, an optimal value will be chosen automatically. | |
| 36 * If rowBytes is > 0, then it will be respected, or NULL will be returned | |
| 37 * if rowBytes is invalid for the specified info. | |
| 38 * | |
| 39 * This pixelref will ref() the specified colortable (if not NULL). | |
| 40 * | |
| 41 * Returns NULL on failure. | |
| 42 */ | |
| 43 static SkMallocPixelRef* NewAllocate(const SkImageInfo& info, | |
| 44 size_t rowBytes, SkColorTable*); | |
| 45 | |
| 46 /** | |
| 47 * Return a new SkMallocPixelRef with the provided pixel storage, | |
| 48 * rowBytes, and optional colortable. On destruction, ReleaseProc | |
| 49 * will be called. | |
| 50 * | |
| 51 * This pixelref will ref() the specified colortable (if not NULL). | |
| 52 * | |
| 53 * Returns NULL on failure. | |
| 54 */ | |
| 55 typedef void (*ReleaseProc)(void* addr, void* context); | |
| 56 static SkMallocPixelRef* NewWithProc(const SkImageInfo& info, | |
| 57 size_t rowBytes, SkColorTable*, | |
| 58 void* addr, ReleaseProc proc, | |
| 59 void* context); | |
| 60 | |
| 61 /** | |
| 62 * Return a new SkMallocPixelRef that will use the provided | |
| 63 * SkData, rowBytes, and optional colortable as pixel storage. | |
| 64 * The SkData will be ref()ed and on destruction of the PielRef, | |
| 65 * the SkData will be unref()ed. | |
| 66 * | |
| 67 * @param offset (in bytes) into the provided SkData that the | |
| 68 * first pixel is located at. | |
| 69 * | |
| 70 * This pixelref will ref() the specified colortable (if not NULL). | |
| 71 * | |
| 72 * Returns NULL on failure. | |
| 73 */ | |
| 74 static SkMallocPixelRef* NewWithData(const SkImageInfo& info, | |
| 75 size_t rowBytes, | |
| 76 SkColorTable* ctable, | |
| 77 SkData* data, | |
| 78 size_t offset = 0); | |
| 79 | |
| 80 void* getAddr() const { return fStorage; } | |
| 81 | |
| 82 class PRFactory : public SkPixelRefFactory { | |
| 83 public: | |
| 84 virtual SkPixelRef* create(const SkImageInfo&, | |
| 85 SkColorTable*) SK_OVERRIDE; | |
| 86 }; | |
| 87 | |
| 88 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMallocPixelRef) | |
| 89 | |
| 90 protected: | |
| 91 // The ownPixels version of this constructor is deprecated. | |
| 92 SkMallocPixelRef(const SkImageInfo&, void* addr, size_t rb, SkColorTable*, | |
| 93 bool ownPixels); | |
| 94 SkMallocPixelRef(SkReadBuffer& buffer); | |
| 95 virtual ~SkMallocPixelRef(); | |
| 96 | |
| 97 virtual bool onNewLockPixels(LockRec*) SK_OVERRIDE; | |
| 98 virtual void onUnlockPixels() SK_OVERRIDE; | |
| 99 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; | |
| 100 virtual size_t getAllocatedSizeInBytes() const SK_OVERRIDE; | |
| 101 | |
| 102 private: | |
| 103 void* fStorage; | |
| 104 SkColorTable* fCTable; | |
| 105 size_t fRB; | |
| 106 ReleaseProc fReleaseProc; | |
| 107 void* fReleaseProcContext; | |
| 108 | |
| 109 SkMallocPixelRef(const SkImageInfo&, void* addr, size_t rb, SkColorTable*, | |
| 110 ReleaseProc proc, void* context); | |
| 111 | |
| 112 typedef SkPixelRef INHERITED; | |
| 113 }; | |
| 114 | |
| 115 | |
| 116 #endif |
