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76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef PROFILER_MARKERS_H
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#define PROFILER_MARKERS_H
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#include "JSCustomObjectBuilder.h"
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#include "JSObjectBuilder.h"
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#include "nsAutoPtr.h"
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/**
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* This is an abstract object that can be implied to supply
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* data to be attached with a profiler marker. Most data inserted
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* into a profile is stored in a circular buffer. This buffer
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* typically wraps around and overwrites most entries. Because
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* of this, this structure is designed to defer the work of
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* prepare the payload only when 'preparePayload' is called.
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*
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* Note when implementing that this object is typically constructed
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* on a particular thread but 'preparePayload' and the destructor
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* is called from the main thread.
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*/
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class ProfilerMarkerPayload {
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public:
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ProfilerMarkerPayload() {}
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/**
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* Called from the main thread
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*/
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virtual ~ProfilerMarkerPayload() {}
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/**
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* Called from the main thread
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*/
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template<typename Builder>
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typename Builder::Object PreparePayload(Builder& b)
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{
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return preparePayload(b);
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}
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protected:
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/**
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* Called from the main thread
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*/
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virtual JSCustomObjectBuilder::Object
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preparePayload(JSCustomObjectBuilder& b) = 0;
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/**
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* Called from the main thread
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*/
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virtual JSObjectBuilder::Object
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preparePayload(JSObjectBuilder& b) = 0;
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};
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class gfxASurface;
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class ProfilerMarkerImagePayload : public ProfilerMarkerPayload {
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public:
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ProfilerMarkerImagePayload(gfxASurface *aImg);
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protected:
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virtual JSCustomObjectBuilder::Object
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preparePayload(JSCustomObjectBuilder& b) { return preparePayloadImp(b); }
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virtual JSObjectBuilder::Object
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preparePayload(JSObjectBuilder& b) { return preparePayloadImp(b); }
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private:
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template<typename Builder>
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typename Builder::Object preparePayloadImp(Builder& b);
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nsRefPtr<gfxASurface> mImg;
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};
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#endif // PROFILER_MARKERS_H
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