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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef WEBGL_MEMORY_TRACKER_H_
#define WEBGL_MEMORY_TRACKER_H_
#include "mozilla/StaticPtr.h"
#include "nsIMemoryReporter.h"
namespace mozilla {
class WebGLContext;
class WebGLMemoryTracker : public nsIMemoryReporter
{
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIMEMORYREPORTER
WebGLMemoryTracker();
static StaticRefPtr<WebGLMemoryTracker> sUniqueInstance;
// Here we store plain pointers, not RefPtrs: we don't want the
// WebGLMemoryTracker unique instance to keep alive all
// WebGLContexts ever created.
typedef nsTArray<const WebGLContext*> ContextsArrayType;
ContextsArrayType mContexts;
void InitMemoryReporter();
static WebGLMemoryTracker* UniqueInstance();
static ContextsArrayType& Contexts() { return UniqueInstance()->mContexts; }
friend class WebGLContext;
public:
static void AddWebGLContext(const WebGLContext* c) {
Contexts().AppendElement(c);
}
static void RemoveWebGLContext(const WebGLContext* c) {
ContextsArrayType & contexts = Contexts();
contexts.RemoveElement(c);
if (contexts.IsEmpty()) {
sUniqueInstance = nullptr;
}
}
private:
virtual ~WebGLMemoryTracker();
static int64_t GetTextureMemoryUsed();
static int64_t GetTextureCount();
static int64_t GetBufferMemoryUsed();
static int64_t GetBufferCacheMemoryUsed();
static int64_t GetBufferCount();
static int64_t GetRenderbufferMemoryUsed();
static int64_t GetRenderbufferCount();
static int64_t GetShaderSize();
static int64_t GetShaderCount();
static int64_t GetContextCount() {
return Contexts().Length();
}
};
} // namespace mozilla
#endif // WEBGL_MEMORY_TRACKER_H_
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