Sample for GPU memory dumping using new SkTraceMemoryDump.

src/gpu/GrResourceCache.h

 
 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrResourceCache_DEFINED
 #define GrResourceCache_DEFINED
 
 #include "GrGpuResource.h"
 #include "GrGpuResourceCacheAccess.h"
 #include "GrGpuResourcePriv.h"
 #include "GrResourceKey.h"
 #include "SkMessageBus.h"
 #include "SkRefCnt.h"
 #include "SkTArray.h"
 #include "SkTDPQueue.h"
 #include "SkTInternalLList.h"
 #include "SkTMultiMap.h"
 
 class SkString;
+class SkTraceMemoryDump;
 
 /**
  * Manages the lifetime of all GrGpuResource instances.
  *
  * Resources may have optionally have two types of keys:
  *      1) A scratch key. This is for resources whose allocations are cached but not their contents.
  *         Multiple resources can share the same scratch key. This is so a caller can have two
  *         resource instances with the same properties (e.g. multipass rendering that ping-pongs
  *         between two temporary surfaces). The scratch key is set at resource creation time and
  *         should never change. Resources need not have a scratch key.
@@ skipping 88 matching lines @@
         /** Will not return any resources that match but have pending IO. */
         kRequireNoPendingIO_ScratchFlag = 0x2,
     };
 
     /**
      * Find a resource that matches a scratch key.
      */
     GrGpuResource* findAndRefScratchResource(const GrScratchKey& scratchKey,
                                              size_t resourceSize,
                                              uint32_t flags);
-    
+
 #ifdef SK_DEBUG
     // This is not particularly fast and only used for validation, so debug only.
     int countScratchEntriesForKey(const GrScratchKey& scratchKey) const {
         return fScratchMap.countForKey(scratchKey);
     }
 #endif
 
     /**
      * Find a resource that matches a unique key.
      */
@@ skipping 27 matching lines @@
 
     /**
      * Set the callback the cache should use when it is still over budget after a purge. The 'data'
      * provided here will be passed back to the callback. Note that the cache will attempt to purge
      * any resources newly freed by the callback.
      */
     void setOverBudgetCallback(PFOverBudgetCB overBudgetCB, void* data) {
         fOverBudgetCB = overBudgetCB;
         fOverBudgetData = data;
     }
-    
+
     void notifyFlushOccurred();
 
 #if GR_GPU_STATS
     void dumpStats(SkString*) const;
 #endif
 
     // This function is for unit testing and is only defined in test tools.
     void changeTimestamp(uint32_t newTimestamp);
 
+    /** Enumerates all cached resources and dumps their details to traceMemoryDump. */
+    void onMemoryDump(SkTraceMemoryDump* traceMemoryDump) const;
+
 private:
     ///////////////////////////////////////////////////////////////////////////
     /// @name Methods accessible via ResourceAccess
     ////
     void insertResource(GrGpuResource*);
     void removeResource(GrGpuResource*);
     void notifyCntReachedZero(GrGpuResource*, uint32_t flags);
     void didChangeGpuMemorySize(const GrGpuResource*, size_t oldSize);
     void changeUniqueKey(GrGpuResource*, const GrUniqueKey&);
     void removeUniqueKey(GrGpuResource*);
     void willRemoveScratchKey(const GrGpuResource*);
     void didChangeBudgetStatus(GrGpuResource*);
     void refAndMakeResourceMRU(GrGpuResource*);
     /// @}
 
     void resetFlushTimestamps();
     void processInvalidUniqueKeys(const SkTArray<GrUniqueKeyInvalidatedMessage>&);
     void addToNonpurgeableArray(GrGpuResource*);
     void removeFromNonpurgeableArray(GrGpuResource*);
     bool overBudget() const { return fBudgetedBytes > fMaxBytes || fBudgetedCount > fMaxCount; }
 
     bool wouldFit(size_t bytes) {
-        return fBudgetedBytes+bytes <= fMaxBytes && fBudgetedCount+1 <= fMaxCount;    
+        return fBudgetedBytes+bytes <= fMaxBytes && fBudgetedCount+1 <= fMaxCount;
     }
 
     uint32_t getNextTimestamp();
 
 #ifdef SK_DEBUG
     bool isInCache(const GrGpuResource* r) const;
     void validate() const;
 #else
     void validate() const {}
 #endif
@@ skipping 154 matching lines @@
 
     friend class GrGpuResource; // To access all the proxy inline methods.
     friend class GrResourceCache; // To create this type.
 };
 
 inline GrResourceCache::ResourceAccess GrResourceCache::resourceAccess() {
     return ResourceAccess(this);
 }
 
 #endif