michael@0: /* vim: se cin sw=2 ts=2 et : */
michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  *
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef __mozilla_widget_GfxInfoBase_h__
michael@0: #define __mozilla_widget_GfxInfoBase_h__
michael@0: 
michael@0: #include "nsIGfxInfo.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsIObserver.h"
michael@0: #include "nsWeakReference.h"
michael@0: #include "GfxDriverInfo.h"
michael@0: #include "nsTArray.h"
michael@0: #include "nsString.h"
michael@0: #include "GfxInfoCollector.h"
michael@0: #include "nsIGfxInfoDebug.h"
michael@0: #include "mozilla/Mutex.h"
michael@0: #include "js/Value.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace widget {  
michael@0: 
michael@0: class GfxInfoBase : public nsIGfxInfo,
michael@0:                     public nsIObserver,
michael@0:                     public nsSupportsWeakReference
michael@0: #ifdef DEBUG
michael@0:                   , public nsIGfxInfoDebug
michael@0: #endif
michael@0: {
michael@0: public:
michael@0:   GfxInfoBase();
michael@0:   virtual ~GfxInfoBase();
michael@0: 
michael@0:   NS_DECL_THREADSAFE_ISUPPORTS
michael@0:   NS_DECL_NSIOBSERVER
michael@0: 
michael@0:   // We only declare a subset of the nsIGfxInfo interface. It's up to derived
michael@0:   // classes to implement the rest of the interface.  
michael@0:   // Derived classes need to use
michael@0:   // using GfxInfoBase::GetFeatureStatus;
michael@0:   // using GfxInfoBase::GetFeatureSuggestedDriverVersion;
michael@0:   // using GfxInfoBase::GetWebGLParameter;
michael@0:   // to import the relevant methods into their namespace.
michael@0:   NS_IMETHOD GetFeatureStatus(int32_t aFeature, int32_t *_retval);
michael@0:   NS_IMETHOD GetFeatureSuggestedDriverVersion(int32_t aFeature, nsAString & _retval);
michael@0:   NS_IMETHOD GetWebGLParameter(const nsAString & aParam, nsAString & _retval);
michael@0: 
michael@0:   NS_IMETHOD GetFailures(uint32_t *failureCount, char ***failures);
michael@0:   NS_IMETHOD_(void) LogFailure(const nsACString &failure);
michael@0:   NS_IMETHOD GetInfo(JSContext*, JS::MutableHandle<JS::Value>);
michael@0: 
michael@0:   // Initialization function. If you override this, you must call this class's
michael@0:   // version of Init first.
michael@0:   // We need Init to be called separately from the constructor so we can
michael@0:   // register as an observer after all derived classes have been constructed
michael@0:   // and we know we have a non-zero refcount.
michael@0:   // Ideally, Init() would be void-return, but the rules of
michael@0:   // NS_GENERIC_FACTORY_CONSTRUCTOR_INIT require it be nsresult return.
michael@0:   virtual nsresult Init();
michael@0:   
michael@0:   // only useful on X11
michael@0:   NS_IMETHOD_(void) GetData() { }
michael@0: 
michael@0:   static void AddCollector(GfxInfoCollectorBase* collector);
michael@0:   static void RemoveCollector(GfxInfoCollectorBase* collector);
michael@0: 
michael@0:   static nsTArray<GfxDriverInfo>* mDriverInfo;
michael@0:   static bool mDriverInfoObserverInitialized;
michael@0: 
michael@0:   virtual nsString Model() { return EmptyString(); }
michael@0:   virtual nsString Hardware() { return EmptyString(); }
michael@0:   virtual nsString Product() { return EmptyString(); }
michael@0:   virtual nsString Manufacturer() { return EmptyString(); }
michael@0:   virtual uint32_t OperatingSystemVersion() { return 0; }
michael@0: 
michael@0: protected:
michael@0: 
michael@0:   virtual nsresult GetFeatureStatusImpl(int32_t aFeature, int32_t* aStatus,
michael@0:                                         nsAString& aSuggestedDriverVersion,
michael@0:                                         const nsTArray<GfxDriverInfo>& aDriverInfo,
michael@0:                                         OperatingSystem* aOS = nullptr);
michael@0: 
michael@0:   // Gets the driver info table. Used by GfxInfoBase to check for general cases
michael@0:   // (while subclasses check for more specific ones).
michael@0:   virtual const nsTArray<GfxDriverInfo>& GetGfxDriverInfo() = 0;
michael@0: 
michael@0: private:
michael@0:   virtual int32_t FindBlocklistedDeviceInList(const nsTArray<GfxDriverInfo>& aDriverInfo,
michael@0:                                               nsAString& aSuggestedVersion,
michael@0:                                               int32_t aFeature,
michael@0:                                               OperatingSystem os);
michael@0: 
michael@0:   void EvaluateDownloadedBlacklist(nsTArray<GfxDriverInfo>& aDriverInfo);
michael@0: 
michael@0:   nsCString mFailures[9]; // The choice of 9 is Ehsan's
michael@0:   uint32_t mFailureCount;
michael@0:   Mutex mMutex;
michael@0: 
michael@0: };
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif /* __mozilla_widget_GfxInfoBase_h__ */