src/third_party/skia/src/images/SkImageRef_ashmem.h

   1
   2 /*
   3  * Copyright 2011 Google Inc.
   4  *
   5  * Use of this source code is governed by a BSD-style license that can be
   6  * found in the LICENSE file.
   7  */
   8 #ifndef SkImageRef_ashmem_DEFINED
   9 #define SkImageRef_ashmem_DEFINED
  10
  11 #include "SkImageRef.h"
  12
  13 struct SkAshmemRec {
  14     int     fFD;
  15     void*   fAddr;
  16     size_t  fSize;
  17     bool    fPinned;
  18 };
  19
  20 class SkImageRef_ashmem : public SkImageRef {
  21 public:
  22     SkImageRef_ashmem(const SkImageInfo&, SkStreamRewindable*, int sampleSize = 1);
  23     virtual ~SkImageRef_ashmem();
  24
  25     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkImageRef_ashmem)
  26
  27 protected:
  28     SkImageRef_ashmem(SkReadBuffer&);
  29     virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
  30
  31     virtual bool onDecode(SkImageDecoder* codec, SkStreamRewindable* stream,
  32                           SkBitmap* bitmap, SkBitmap::Config config,
  33                           SkImageDecoder::Mode mode);
  34
  35     virtual bool onNewLockPixels(LockRec*) SK_OVERRIDE;
  36     virtual void onUnlockPixels() SK_OVERRIDE;
  37
  38 private:
  39     void closeFD();
  40
  41     SkColorTable* fCT;
  42     SkAshmemRec fRec;
  43
  44     typedef SkImageRef INHERITED;
  45 };
  46
  47 #endif