diff -r 000000000000 -r 6474c204b198 gfx/thebes/gfxQtPlatform.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/thebes/gfxQtPlatform.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,121 @@
+/* -*- Mode: C++; tab-width: 20; 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 GFX_PLATFORM_QT_H
+#define GFX_PLATFORM_QT_H
+
+#include "gfxPlatform.h"
+#include "nsAutoRef.h"
+#include "nsDataHashtable.h"
+#include "nsTArray.h"
+#ifdef MOZ_X11
+#include "X11/Xlib.h"
+#endif
+
+class gfxImageSurface;
+class gfxFontconfigUtils;
+class QWindow;
+
+class gfxQtPlatform : public gfxPlatform {
+public:
+    gfxQtPlatform();
+    virtual ~gfxQtPlatform();
+
+    static gfxQtPlatform *GetPlatform() {
+        return static_cast<gfxQtPlatform*>(gfxPlatform::GetPlatform());
+    }
+
+    virtual already_AddRefed<gfxASurface>
+    OptimizeImage(gfxImageSurface *aSurface,
+                  gfxImageFormat format) MOZ_OVERRIDE;
+    virtual already_AddRefed<gfxASurface>
+      CreateOffscreenSurface(const IntSize& size,
+                             gfxContentType contentType) MOZ_OVERRIDE;
+
+    virtual mozilla::TemporaryRef<mozilla::gfx::ScaledFont>
+      GetScaledFontForFont(mozilla::gfx::DrawTarget* aTarget, gfxFont *aFont) MOZ_OVERRIDE;
+
+    virtual nsresult GetFontList(nsIAtom *aLangGroup,
+                                 const nsACString& aGenericFamily,
+                                 nsTArray<nsString>& aListOfFonts) MOZ_OVERRIDE;
+
+    virtual nsresult UpdateFontList() MOZ_OVERRIDE;
+
+    virtual nsresult ResolveFontName(const nsAString& aFontName,
+                                     FontResolverCallback aCallback,
+                                     void *aClosure, bool& aAborted) MOZ_OVERRIDE;
+
+    virtual nsresult GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName) MOZ_OVERRIDE;
+
+    virtual gfxFontGroup *CreateFontGroup(const nsAString &aFamilies,
+                                          const gfxFontStyle *aStyle,
+                                          gfxUserFontSet* aUserFontSet) MOZ_OVERRIDE;
+
+    /**
+     * Look up a local platform font using the full font face name (needed to
+     * support @font-face src local() )
+     */
+    virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
+                                          const nsAString& aFontName) MOZ_OVERRIDE;
+
+    /**
+     * Activate a platform font (needed to support @font-face src url() )
+     *
+     */
+    virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
+                                           const uint8_t *aFontData,
+                                           uint32_t aLength) MOZ_OVERRIDE;
+
+    /**
+     * Check whether format is supported on a platform or not (if unclear,
+     * returns true).
+     */
+    virtual bool IsFontFormatSupported(nsIURI *aFontURI,
+                                       uint32_t aFormatFlags) MOZ_OVERRIDE;
+
+    virtual void ClearPrefFonts() { mPrefFonts.Clear(); }
+
+    static int32_t GetDPI();
+
+    virtual gfxImageFormat GetOffscreenFormat() MOZ_OVERRIDE;
+#ifdef MOZ_X11
+    static Display* GetXDisplay(QWindow* aWindow = 0);
+    static Screen* GetXScreen(QWindow* aWindow = 0);
+#endif
+
+    virtual int GetScreenDepth() const MOZ_OVERRIDE;
+
+    virtual bool SupportsOffMainThreadCompositing() MOZ_OVERRIDE;
+
+protected:
+    static gfxFontconfigUtils *sFontconfigUtils;
+
+private:
+
+    bool UseXRender() {
+#if defined(MOZ_X11)
+        if (GetContentBackend() != mozilla::gfx::BackendType::NONE &&
+            GetContentBackend() != mozilla::gfx::BackendType::CAIRO)
+            return false;
+
+        return sUseXRender;
+#else
+        return false;
+#endif
+    }
+
+    virtual void GetPlatformCMSOutputProfile(void *&mem, size_t &size) MOZ_OVERRIDE;
+
+    // TODO: unify this with mPrefFonts (NB: holds families, not fonts) in gfxPlatformFontList
+    nsDataHashtable<nsCStringHashKey, nsTArray<nsRefPtr<gfxFontEntry> > > mPrefFonts;
+
+    int mScreenDepth;
+#ifdef MOZ_X11
+    static bool sUseXRender;
+#endif
+};
+
+#endif /* GFX_PLATFORM_QT_H */
+