epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2008 The Android Open Source Project |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 4 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 9 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | #ifndef SkPixelRef_DEFINED |
| 11 | #define SkPixelRef_DEFINED |
| 12 | |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 13 | #include "SkBitmap.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 14 | #include "SkRefCnt.h" |
| 15 | #include "SkString.h" |
djsollen@google.com | 5370cd9 | 2012-03-28 20:47:01 +0000 | [diff] [blame] | 16 | #include "SkFlattenable.h" |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 17 | #include "SkImageInfo.h" |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 18 | #include "SkTDArray.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 19 | |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 20 | //#define SK_SUPPORT_LEGACY_ONLOCKPIXELS |
| 21 | |
reed@google.com | 2a3f08b | 2012-12-13 21:41:00 +0000 | [diff] [blame] | 22 | #ifdef SK_DEBUG |
| 23 | /** |
| 24 | * Defining SK_IGNORE_PIXELREF_SETPRELOCKED will force all pixelref |
| 25 | * subclasses to correctly handle lock/unlock pixels. For performance |
| 26 | * reasons, simple malloc-based subclasses call setPreLocked() to skip |
| 27 | * the overhead of implementing these calls. |
| 28 | * |
| 29 | * This build-flag disables that optimization, to add in debugging our |
| 30 | * call-sites, to ensure that they correctly balance their calls of |
| 31 | * lock and unlock. |
| 32 | */ |
| 33 | // #define SK_IGNORE_PIXELREF_SETPRELOCKED |
| 34 | #endif |
| 35 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 36 | class SkColorTable; |
reed@google.com | eb77612 | 2012-12-06 14:26:02 +0000 | [diff] [blame] | 37 | class SkData; |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 38 | struct SkIRect; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | class SkMutex; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 40 | |
commit-bot@chromium.org | b8d00db | 2013-06-26 19:18:23 +0000 | [diff] [blame] | 41 | class GrTexture; |
reed@android.com | ce4e53a | 2010-09-09 16:01:26 +0000 | [diff] [blame] | 42 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 43 | /** \class SkPixelRef |
| 44 | |
| 45 | This class is the smart container for pixel memory, and is used with |
| 46 | SkBitmap. A pixelref is installed into a bitmap, and then the bitmap can |
| 47 | access the actual pixel memory by calling lockPixels/unlockPixels. |
| 48 | |
| 49 | This class can be shared/accessed between multiple threads. |
| 50 | */ |
djsollen@google.com | 5370cd9 | 2012-03-28 20:47:01 +0000 | [diff] [blame] | 51 | class SK_API SkPixelRef : public SkFlattenable { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | public: |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 53 | SK_DECLARE_INST_COUNT(SkPixelRef) |
| 54 | |
reed@google.com | f171570 | 2013-12-06 22:07:17 +0000 | [diff] [blame] | 55 | explicit SkPixelRef(const SkImageInfo&); |
reed@google.com | b0eb102 | 2013-12-06 22:16:10 +0000 | [diff] [blame] | 56 | SkPixelRef(const SkImageInfo&, SkBaseMutex* mutex); |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 57 | virtual ~SkPixelRef(); |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 58 | |
reed@google.com | 9230ea2 | 2013-12-09 22:01:03 +0000 | [diff] [blame] | 59 | const SkImageInfo& info() const { |
| 60 | return fInfo; |
| 61 | } |
| 62 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 63 | /** Return the pixel memory returned from lockPixels, or null if the |
| 64 | lockCount is 0. |
| 65 | */ |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 66 | void* pixels() const { return fRec.fPixels; } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 67 | |
| 68 | /** Return the current colorTable (if any) if pixels are locked, or null. |
| 69 | */ |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 70 | SkColorTable* colorTable() const { return fRec.fColorTable; } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 71 | |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 72 | /** |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 73 | * To access the actual pixels of a pixelref, it must be "locked". |
| 74 | * Calling lockPixels returns a LockRec struct (on success). |
| 75 | */ |
| 76 | struct LockRec { |
| 77 | void* fPixels; |
| 78 | SkColorTable* fColorTable; |
| 79 | size_t fRowBytes; |
| 80 | |
| 81 | void zero() { sk_bzero(this, sizeof(*this)); } |
| 82 | |
| 83 | bool isZero() const { |
| 84 | return NULL == fPixels && NULL == fColorTable && 0 == fRowBytes; |
| 85 | } |
| 86 | }; |
| 87 | |
| 88 | /** |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 89 | * Returns true if the lockcount > 0 |
| 90 | */ |
| 91 | bool isLocked() const { return fLockCount > 0; } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 92 | |
reed@google.com | ea03360 | 2012-12-14 13:13:55 +0000 | [diff] [blame] | 93 | SkDEBUGCODE(int getLockCount() const { return fLockCount; }) |
| 94 | |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 95 | /** |
| 96 | * Call to access the pixel memory. Return true on success. Balance this |
| 97 | * with a call to unlockPixels(). |
| 98 | */ |
| 99 | bool lockPixels(); |
| 100 | |
| 101 | /** |
| 102 | * Call to access the pixel memory. On success, return true and fill out |
| 103 | * the specified rec. On failure, return false and ignore the rec parameter. |
| 104 | * Balance this with a call to unlockPixels(). |
| 105 | */ |
| 106 | bool lockPixels(LockRec* rec); |
| 107 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 108 | /** Call to balanace a previous call to lockPixels(). Returns the pixels |
| 109 | (or null) after the unlock. NOTE: lock calls can be nested, but the |
| 110 | matching number of unlock calls must be made in order to free the |
| 111 | memory (if the subclass implements caching/deferred-decoding.) |
| 112 | */ |
| 113 | void unlockPixels(); |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 114 | |
reed@google.com | 9c49bc3 | 2011-07-07 13:42:37 +0000 | [diff] [blame] | 115 | /** |
| 116 | * Some bitmaps can return a copy of their pixels for lockPixels(), but |
| 117 | * that copy, if modified, will not be pushed back. These bitmaps should |
| 118 | * not be used as targets for a raster device/canvas (since all pixels |
| 119 | * modifications will be lost when unlockPixels() is called.) |
| 120 | */ |
| 121 | bool lockPixelsAreWritable() const; |
| 122 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 123 | /** Returns a non-zero, unique value corresponding to the pixels in this |
| 124 | pixelref. Each time the pixels are changed (and notifyPixelsChanged is |
| 125 | called), a different generation ID will be returned. |
| 126 | */ |
| 127 | uint32_t getGenerationID() const; |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 128 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 129 | /** Call this if you have changed the contents of the pixels. This will in- |
| 130 | turn cause a different generation ID value to be returned from |
| 131 | getGenerationID(). |
| 132 | */ |
| 133 | void notifyPixelsChanged(); |
| 134 | |
| 135 | /** Returns true if this pixelref is marked as immutable, meaning that the |
| 136 | contents of its pixels will not change for the lifetime of the pixelref. |
| 137 | */ |
| 138 | bool isImmutable() const { return fIsImmutable; } |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 139 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 140 | /** Marks this pixelref is immutable, meaning that the contents of its |
| 141 | pixels will not change for the lifetime of the pixelref. This state can |
| 142 | be set on a pixelref, but it cannot be cleared once it is set. |
| 143 | */ |
| 144 | void setImmutable(); |
| 145 | |
| 146 | /** Return the optional URI string associated with this pixelref. May be |
| 147 | null. |
| 148 | */ |
| 149 | const char* getURI() const { return fURI.size() ? fURI.c_str() : NULL; } |
| 150 | |
| 151 | /** Copy a URI string to this pixelref, or clear the URI if the uri is null |
| 152 | */ |
| 153 | void setURI(const char uri[]) { |
| 154 | fURI.set(uri); |
| 155 | } |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 156 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 157 | /** Copy a URI string to this pixelref |
| 158 | */ |
| 159 | void setURI(const char uri[], size_t len) { |
| 160 | fURI.set(uri, len); |
| 161 | } |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 162 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 163 | /** Assign a URI string to this pixelref. |
| 164 | */ |
| 165 | void setURI(const SkString& uri) { fURI = uri; } |
| 166 | |
reed@google.com | eb77612 | 2012-12-06 14:26:02 +0000 | [diff] [blame] | 167 | /** |
| 168 | * If the pixelRef has an encoded (i.e. compressed) representation, |
| 169 | * return a ref to its data. If the pixelRef |
| 170 | * is uncompressed or otherwise does not have this form, return NULL. |
| 171 | * |
| 172 | * If non-null is returned, the caller is responsible for calling unref() |
| 173 | * on the data when it is finished. |
| 174 | */ |
| 175 | SkData* refEncodedData() { |
| 176 | return this->onRefEncodedData(); |
| 177 | } |
| 178 | |
reed@google.com | cee9dcb | 2013-09-13 16:04:49 +0000 | [diff] [blame] | 179 | /** |
| 180 | * Experimental -- tells the caller if it is worth it to call decodeInto(). |
| 181 | * Just an optimization at this point, to avoid checking the cache first. |
| 182 | * We may remove/change this call in the future. |
| 183 | */ |
| 184 | bool implementsDecodeInto() { |
| 185 | return this->onImplementsDecodeInto(); |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Return a decoded instance of this pixelRef in bitmap. If this cannot be |
| 190 | * done, return false and the bitmap parameter is ignored/unchanged. |
| 191 | * |
| 192 | * pow2 is the requeste power-of-two downscale that the caller needs. This |
| 193 | * can be ignored, and the "original" size can be returned, but if the |
| 194 | * underlying codec can efficiently return a smaller size, that should be |
| 195 | * done. Some examples: |
| 196 | * |
| 197 | * To request the "base" version (original scale), pass 0 for pow2 |
| 198 | * To request 1/2 scale version (1/2 width, 1/2 height), pass 1 for pow2 |
| 199 | * To request 1/4 scale version (1/4 width, 1/4 height), pass 2 for pow2 |
| 200 | * ... |
| 201 | * |
| 202 | * If this returns true, then bitmap must be "locked" such that |
| 203 | * bitmap->getPixels() will return the correct address. |
| 204 | */ |
| 205 | bool decodeInto(int pow2, SkBitmap* bitmap) { |
| 206 | SkASSERT(pow2 >= 0); |
| 207 | return this->onDecodeInto(pow2, bitmap); |
| 208 | } |
| 209 | |
reed@android.com | ce4e53a | 2010-09-09 16:01:26 +0000 | [diff] [blame] | 210 | /** Are we really wrapping a texture instead of a bitmap? |
| 211 | */ |
commit-bot@chromium.org | b8d00db | 2013-06-26 19:18:23 +0000 | [diff] [blame] | 212 | virtual GrTexture* getTexture() { return NULL; } |
reed@android.com | ce4e53a | 2010-09-09 16:01:26 +0000 | [diff] [blame] | 213 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 214 | bool readPixels(SkBitmap* dst, const SkIRect* subset = NULL); |
| 215 | |
scroggo@google.com | a2a3192 | 2012-12-07 19:14:45 +0000 | [diff] [blame] | 216 | /** |
| 217 | * Makes a deep copy of this PixelRef, respecting the requested config. |
| 218 | * @param config Desired config. |
| 219 | * @param subset Subset of this PixelRef to copy. Must be fully contained within the bounds of |
| 220 | * of this PixelRef. |
| 221 | * @return A new SkPixelRef, or NULL if either there is an error (e.g. the destination could |
| 222 | * not be created with the given config), or this PixelRef does not support deep |
| 223 | * copies. |
| 224 | */ |
| 225 | virtual SkPixelRef* deepCopy(SkBitmap::Config config, const SkIRect* subset = NULL) { |
| 226 | return NULL; |
| 227 | } |
senorblanco@chromium.org | ef843cd | 2011-12-02 19:11:17 +0000 | [diff] [blame] | 228 | |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 229 | #ifdef SK_BUILD_FOR_ANDROID |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 230 | /** |
| 231 | * Acquire a "global" ref on this object. |
| 232 | * The default implementation just calls ref(), but subclasses can override |
| 233 | * this method to implement additional behavior. |
| 234 | */ |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 235 | virtual void globalRef(void* data=NULL); |
| 236 | |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 237 | /** |
| 238 | * Release a "global" ref on this object. |
| 239 | * The default implementation just calls unref(), but subclasses can override |
| 240 | * this method to implement additional behavior. |
| 241 | */ |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 242 | virtual void globalUnref(); |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 243 | #endif |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 244 | |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 245 | SK_DEFINE_FLATTENABLE_TYPE(SkPixelRef) |
| 246 | |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 247 | // Register a listener that may be called the next time our generation ID changes. |
| 248 | // |
| 249 | // We'll only call the listener if we're confident that we are the only SkPixelRef with this |
| 250 | // generation ID. If our generation ID changes and we decide not to call the listener, we'll |
| 251 | // never call it: you must add a new listener for each generation ID change. We also won't call |
| 252 | // the listener when we're certain no one knows what our generation ID is. |
| 253 | // |
| 254 | // This can be used to invalidate caches keyed by SkPixelRef generation ID. |
| 255 | struct GenIDChangeListener { |
| 256 | virtual ~GenIDChangeListener() {} |
| 257 | virtual void onChange() = 0; |
| 258 | }; |
| 259 | |
| 260 | // Takes ownership of listener. |
| 261 | void addGenIDChangeListener(GenIDChangeListener* listener); |
| 262 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 263 | protected: |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 264 | #ifdef SK_SUPPORT_LEGACY_ONLOCKPIXELS |
| 265 | virtual void* onLockPixels(SkColorTable**); |
| 266 | virtual bool onNewLockPixels(LockRec*); |
| 267 | #else |
| 268 | /** |
| 269 | * On success, returns true and fills out the LockRec for the pixels. On |
| 270 | * failure returns false and ignores the LockRec parameter. |
| 271 | * |
| 272 | * The caller will have already acquired a mutex for thread safety, so this |
| 273 | * method need not do that. |
| 274 | */ |
| 275 | virtual bool onNewLockPixels(LockRec*) = 0; |
| 276 | #endif |
skia.committer@gmail.com | 96f5fa0 | 2013-12-16 07:01:40 +0000 | [diff] [blame] | 277 | |
reed@google.com | c83a91f | 2013-12-13 13:41:14 +0000 | [diff] [blame] | 278 | /** |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 279 | * Balancing the previous successful call to onNewLockPixels. The locked |
| 280 | * pixel address will no longer be referenced, so the subclass is free to |
| 281 | * move or discard that memory. |
reed@google.com | c83a91f | 2013-12-13 13:41:14 +0000 | [diff] [blame] | 282 | * |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 283 | * The caller will have already acquired a mutex for thread safety, so this |
| 284 | * method need not do that. |
reed@google.com | c83a91f | 2013-12-13 13:41:14 +0000 | [diff] [blame] | 285 | */ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 286 | virtual void onUnlockPixels() = 0; |
| 287 | |
reed@google.com | 9c49bc3 | 2011-07-07 13:42:37 +0000 | [diff] [blame] | 288 | /** Default impl returns true */ |
| 289 | virtual bool onLockPixelsAreWritable() const; |
| 290 | |
reed@google.com | cee9dcb | 2013-09-13 16:04:49 +0000 | [diff] [blame] | 291 | // returns false; |
| 292 | virtual bool onImplementsDecodeInto(); |
| 293 | // returns false; |
| 294 | virtual bool onDecodeInto(int pow2, SkBitmap* bitmap); |
| 295 | |
reed@google.com | 50dfa01 | 2011-04-01 19:05:36 +0000 | [diff] [blame] | 296 | /** |
| 297 | * For pixelrefs that don't have access to their raw pixels, they may be |
| 298 | * able to make a copy of them (e.g. if the pixels are on the GPU). |
| 299 | * |
| 300 | * The base class implementation returns false; |
| 301 | */ |
| 302 | virtual bool onReadPixels(SkBitmap* dst, const SkIRect* subsetOrNull); |
| 303 | |
reed@google.com | eb77612 | 2012-12-06 14:26:02 +0000 | [diff] [blame] | 304 | // default impl returns NULL. |
| 305 | virtual SkData* onRefEncodedData(); |
| 306 | |
commit-bot@chromium.org | cd3b15c | 2013-12-04 17:06:49 +0000 | [diff] [blame] | 307 | /** |
| 308 | * Returns the size (in bytes) of the internally allocated memory. |
| 309 | * This should be implemented in all serializable SkPixelRef derived classes. |
| 310 | * SkBitmap::fPixelRefOffset + SkBitmap::getSafeSize() should never overflow this value, |
| 311 | * otherwise the rendering code may attempt to read memory out of bounds. |
| 312 | * |
| 313 | * @return default impl returns 0. |
| 314 | */ |
| 315 | virtual size_t getAllocatedSizeInBytes() const; |
| 316 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 317 | /** Return the mutex associated with this pixelref. This value is assigned |
| 318 | in the constructor, and cannot change during the lifetime of the object. |
| 319 | */ |
digit@google.com | 1771cbf | 2012-01-26 21:26:40 +0000 | [diff] [blame] | 320 | SkBaseMutex* mutex() const { return fMutex; } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 321 | |
djsollen@google.com | 5492424 | 2012-03-29 15:18:04 +0000 | [diff] [blame] | 322 | // serialization |
digit@google.com | 1771cbf | 2012-01-26 21:26:40 +0000 | [diff] [blame] | 323 | SkPixelRef(SkFlattenableReadBuffer&, SkBaseMutex*); |
djsollen@google.com | 5492424 | 2012-03-29 15:18:04 +0000 | [diff] [blame] | 324 | virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 325 | |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 326 | // only call from constructor. Flags this to always be locked, removing |
| 327 | // the need to grab the mutex and call onLockPixels/onUnlockPixels. |
| 328 | // Performance tweak to avoid those calls (esp. in multi-thread use case). |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 329 | void setPreLocked(void*, size_t rowBytes, SkColorTable*); |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 330 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 331 | private: |
digit@google.com | 1771cbf | 2012-01-26 21:26:40 +0000 | [diff] [blame] | 332 | SkBaseMutex* fMutex; // must remain in scope for the life of this object |
reed@google.com | 33cc989 | 2014-01-02 18:07:46 +0000 | [diff] [blame] | 333 | |
| 334 | const SkImageInfo fInfo; |
robertphillips@google.com | 0daa1ad | 2013-12-13 15:24:37 +0000 | [diff] [blame] | 335 | |
reed@google.com | 9271389 | 2014-01-03 17:58:57 +0000 | [diff] [blame^] | 336 | // LockRec is only valid if we're in a locked state (isLocked()) |
| 337 | LockRec fRec; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 338 | int fLockCount; |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 339 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 340 | mutable uint32_t fGenerationID; |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 341 | mutable bool fUniqueGenerationID; |
reed@google.com | 93c5f9e | 2011-02-24 18:09:46 +0000 | [diff] [blame] | 342 | |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 343 | SkTDArray<GenIDChangeListener*> fGenIDChangeListeners; // pointers are owned |
scroggo@google.com | d5764e8 | 2012-08-22 15:00:05 +0000 | [diff] [blame] | 344 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 345 | SkString fURI; |
| 346 | |
| 347 | // can go from false to true, but never from true to false |
| 348 | bool fIsImmutable; |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 349 | // only ever set in constructor, const after that |
| 350 | bool fPreLocked; |
| 351 | |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 352 | void needsNewGenID(); |
| 353 | void callGenIDChangeListeners(); |
| 354 | |
reed@google.com | ff0da4f | 2012-05-17 13:14:52 +0000 | [diff] [blame] | 355 | void setMutex(SkBaseMutex* mutex); |
caryclark@google.com | 9d0c6ec | 2011-12-20 20:26:56 +0000 | [diff] [blame] | 356 | |
commit-bot@chromium.org | 50a3043 | 2013-10-24 17:44:27 +0000 | [diff] [blame] | 357 | // When copying a bitmap to another with the same shape and config, we can safely |
| 358 | // clone the pixelref generation ID too, which makes them equivalent under caching. |
| 359 | friend class SkBitmap; // only for cloneGenID |
| 360 | void cloneGenID(const SkPixelRef&); |
| 361 | |
djsollen@google.com | 5370cd9 | 2012-03-28 20:47:01 +0000 | [diff] [blame] | 362 | typedef SkFlattenable INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 363 | }; |
| 364 | |
| 365 | #endif |