Handling large jpegs in CPU raster - downsample to display res and 565

src/core/SkResourceCache.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkChecksum.h"
 #include "SkMessageBus.h"
 #include "SkMipMap.h"
@@ skipping 154 matching lines @@
     if (0 == size || size64 > (uint64_t)size) {
         return false;
     }
 
     SkDiscardableMemory* dm = fFactory(size);
     if (nullptr == dm) {
         return false;
     }
 
     // can we relax this?
-    if (kN32_SkColorType != bitmap->colorType()) {
+    if (kN32_SkColorType != bitmap->colorType() && kRGB_565_SkColorType != bitmap->colorType()) {
         return false;
     }
 
     SkImageInfo info = bitmap->info();
     bitmap->setPixelRef(new SkOneShotDiscardablePixelRef(info, dm, bitmap->rowBytes()))->unref();
     bitmap->lockPixels();
     return bitmap->readyToDraw();
 }
 
 SkResourceCache::SkResourceCache(DiscardableFactory factory) {
@@ skipping 501 matching lines @@
         dump->dumpNumericValue(dumpName.c_str(), "size", "bytes", rec.bytesUsed());
         dump->setMemoryBacking(dumpName.c_str(), "malloc", nullptr);
     }
 }
 
 void SkResourceCache::DumpMemoryStatistics(SkTraceMemoryDump* dump) {
     // Since resource could be backed by malloc or discardable, the cache always dumps detailed
     // stats to be accurate.
     VisitAll(sk_trace_dump_visitor, dump);
 }