1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/xpwidgets/GfxInfoBase.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,108 @@
1.4 +/* vim: se cin sw=2 ts=2 et : */
1.5 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.6 + *
1.7 + * This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#ifndef __mozilla_widget_GfxInfoBase_h__
1.12 +#define __mozilla_widget_GfxInfoBase_h__
1.13 +
1.14 +#include "nsIGfxInfo.h"
1.15 +#include "nsCOMPtr.h"
1.16 +#include "nsIObserver.h"
1.17 +#include "nsWeakReference.h"
1.18 +#include "GfxDriverInfo.h"
1.19 +#include "nsTArray.h"
1.20 +#include "nsString.h"
1.21 +#include "GfxInfoCollector.h"
1.22 +#include "nsIGfxInfoDebug.h"
1.23 +#include "mozilla/Mutex.h"
1.24 +#include "js/Value.h"
1.25 +#include "mozilla/Attributes.h"
1.26 +
1.27 +namespace mozilla {
1.28 +namespace widget {
1.29 +
1.30 +class GfxInfoBase : public nsIGfxInfo,
1.31 + public nsIObserver,
1.32 + public nsSupportsWeakReference
1.33 +#ifdef DEBUG
1.34 + , public nsIGfxInfoDebug
1.35 +#endif
1.36 +{
1.37 +public:
1.38 + GfxInfoBase();
1.39 + virtual ~GfxInfoBase();
1.40 +
1.41 + NS_DECL_THREADSAFE_ISUPPORTS
1.42 + NS_DECL_NSIOBSERVER
1.43 +
1.44 + // We only declare a subset of the nsIGfxInfo interface. It's up to derived
1.45 + // classes to implement the rest of the interface.
1.46 + // Derived classes need to use
1.47 + // using GfxInfoBase::GetFeatureStatus;
1.48 + // using GfxInfoBase::GetFeatureSuggestedDriverVersion;
1.49 + // using GfxInfoBase::GetWebGLParameter;
1.50 + // to import the relevant methods into their namespace.
1.51 + NS_IMETHOD GetFeatureStatus(int32_t aFeature, int32_t *_retval);
1.52 + NS_IMETHOD GetFeatureSuggestedDriverVersion(int32_t aFeature, nsAString & _retval);
1.53 + NS_IMETHOD GetWebGLParameter(const nsAString & aParam, nsAString & _retval);
1.54 +
1.55 + NS_IMETHOD GetFailures(uint32_t *failureCount, char ***failures);
1.56 + NS_IMETHOD_(void) LogFailure(const nsACString &failure);
1.57 + NS_IMETHOD GetInfo(JSContext*, JS::MutableHandle<JS::Value>);
1.58 +
1.59 + // Initialization function. If you override this, you must call this class's
1.60 + // version of Init first.
1.61 + // We need Init to be called separately from the constructor so we can
1.62 + // register as an observer after all derived classes have been constructed
1.63 + // and we know we have a non-zero refcount.
1.64 + // Ideally, Init() would be void-return, but the rules of
1.65 + // NS_GENERIC_FACTORY_CONSTRUCTOR_INIT require it be nsresult return.
1.66 + virtual nsresult Init();
1.67 +
1.68 + // only useful on X11
1.69 + NS_IMETHOD_(void) GetData() { }
1.70 +
1.71 + static void AddCollector(GfxInfoCollectorBase* collector);
1.72 + static void RemoveCollector(GfxInfoCollectorBase* collector);
1.73 +
1.74 + static nsTArray<GfxDriverInfo>* mDriverInfo;
1.75 + static bool mDriverInfoObserverInitialized;
1.76 +
1.77 + virtual nsString Model() { return EmptyString(); }
1.78 + virtual nsString Hardware() { return EmptyString(); }
1.79 + virtual nsString Product() { return EmptyString(); }
1.80 + virtual nsString Manufacturer() { return EmptyString(); }
1.81 + virtual uint32_t OperatingSystemVersion() { return 0; }
1.82 +
1.83 +protected:
1.84 +
1.85 + virtual nsresult GetFeatureStatusImpl(int32_t aFeature, int32_t* aStatus,
1.86 + nsAString& aSuggestedDriverVersion,
1.87 + const nsTArray<GfxDriverInfo>& aDriverInfo,
1.88 + OperatingSystem* aOS = nullptr);
1.89 +
1.90 + // Gets the driver info table. Used by GfxInfoBase to check for general cases
1.91 + // (while subclasses check for more specific ones).
1.92 + virtual const nsTArray<GfxDriverInfo>& GetGfxDriverInfo() = 0;
1.93 +
1.94 +private:
1.95 + virtual int32_t FindBlocklistedDeviceInList(const nsTArray<GfxDriverInfo>& aDriverInfo,
1.96 + nsAString& aSuggestedVersion,
1.97 + int32_t aFeature,
1.98 + OperatingSystem os);
1.99 +
1.100 + void EvaluateDownloadedBlacklist(nsTArray<GfxDriverInfo>& aDriverInfo);
1.101 +
1.102 + nsCString mFailures[9]; // The choice of 9 is Ehsan's
1.103 + uint32_t mFailureCount;
1.104 + Mutex mMutex;
1.105 +
1.106 +};
1.107 +
1.108 +}
1.109 +}
1.110 +
1.111 +#endif /* __mozilla_widget_GfxInfoBase_h__ */
