gecko/widget/xpwidgets/GfxInfoBase.h

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/* vim: se cin sw=2 ts=2 et : */
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
2012-05-21 04:12:37 -07:00
* 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 __mozilla_widget_GfxInfoBase_h__
#define __mozilla_widget_GfxInfoBase_h__
#include "nsIGfxInfo.h"
#include "nsCOMPtr.h"
#include "nsIObserver.h"
#include "nsWeakReference.h"
#include "GfxDriverInfo.h"
#include "nsTArray.h"
#include "nsString.h"
#include "GfxInfoCollector.h"
#include "nsIGfxInfoDebug.h"
namespace mozilla {
namespace widget {
class GfxInfoBase : public nsIGfxInfo,
public nsIObserver,
public nsSupportsWeakReference
#ifdef DEBUG
, public nsIGfxInfoDebug
#endif
{
public:
GfxInfoBase();
virtual ~GfxInfoBase();
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
// We only declare a subset of the nsIGfxInfo interface. It's up to derived
// classes to implement the rest of the interface.
// Derived classes need to use
// using GfxInfoBase::GetFeatureStatus;
// using GfxInfoBase::GetFeatureSuggestedDriverVersion;
// using GfxInfoBase::GetWebGLParameter;
// to import the relevant methods into their namespace.
NS_SCRIPTABLE NS_IMETHOD GetFeatureStatus(PRInt32 aFeature, PRInt32 *_retval NS_OUTPARAM);
NS_SCRIPTABLE NS_IMETHOD GetFeatureSuggestedDriverVersion(PRInt32 aFeature, nsAString & _retval NS_OUTPARAM);
NS_SCRIPTABLE NS_IMETHOD GetWebGLParameter(const nsAString & aParam, nsAString & _retval NS_OUTPARAM);
NS_SCRIPTABLE NS_IMETHOD GetFailures(PRUint32 *failureCount NS_OUTPARAM, char ***failures NS_OUTPARAM);
NS_IMETHOD_(void) LogFailure(const nsACString &failure);
NS_SCRIPTABLE NS_IMETHOD GetInfo(JSContext*, jsval*);
// Initialization function. If you override this, you must call this class's
// version of Init first.
// We need Init to be called separately from the constructor so we can
// register as an observer after all derived classes have been constructed
// and we know we have a non-zero refcount.
// Ideally, Init() would be void-return, but the rules of
// NS_GENERIC_FACTORY_CONSTRUCTOR_INIT require it be nsresult return.
virtual nsresult Init();
// only useful on X11
NS_IMETHOD_(void) GetData() { }
static void AddCollector(GfxInfoCollectorBase* collector);
static void RemoveCollector(GfxInfoCollectorBase* collector);
static nsTArray<GfxDriverInfo>* mDriverInfo;
static bool mDriverInfoObserverInitialized;
protected:
virtual nsresult GetFeatureStatusImpl(PRInt32 aFeature, PRInt32* aStatus,
nsAString& aSuggestedDriverVersion,
const nsTArray<GfxDriverInfo>& aDriverInfo,
OperatingSystem* aOS = nsnull);
// Gets the driver info table. Used by GfxInfoBase to check for general cases
// (while subclasses check for more specific ones).
virtual const nsTArray<GfxDriverInfo>& GetGfxDriverInfo() = 0;
private:
virtual PRInt32 FindBlocklistedDeviceInList(const nsTArray<GfxDriverInfo>& aDriverInfo,
nsAString& aSuggestedVersion,
PRInt32 aFeature,
OperatingSystem os);
void EvaluateDownloadedBlacklist(nsTArray<GfxDriverInfo>& aDriverInfo);
nsCString mFailures[9]; // The choice of 9 is Ehsan's
PRUint32 mFailureCount;
};
}
}
#endif /* __mozilla_widget_GfxInfoBase_h__ */