SkStream: Add SkDynamicMemoryWStream::writeToStream(SkWStream*)

src/core/SkStream.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkStream.h"
@@ skipping 603 matching lines @@
 
         while (block != NULL) {
             size_t size = block->written();
             memcpy(dst, block->start(), size);
             dst = (void*)((char*)dst + size);
             block = block->fNext;
         }
     }
 }
 
+void SkDynamicMemoryWStream::writeToStream(SkWStream* dst) const {
+    for (Block* block = fHead; block != NULL; block = block->fNext) {
+        dst->write(block->start(), block->written());
+    }
+}
+
 void SkDynamicMemoryWStream::padToAlign4()
 {
     // cast to remove unary-minus warning
     int padBytes = -(int)fBytesWritten & 0x03;
     if (padBytes == 0)
         return;
     int zero = 0;
     write(&zero, padBytes);
 }
 
@@ skipping 268 matching lines @@
     SkDynamicMemoryWStream tempStream;
     const size_t bufferSize = 4096;
     char buffer[bufferSize];
     do {
         size_t bytesRead = stream->read(buffer, bufferSize);
         tempStream.write(buffer, bytesRead);
     } while (!stream->isAtEnd());
     return tempStream.detachAsStream();  // returns a SkBlockMemoryStream,
                                          // cheaper than copying to SkData
 }