4 files changed, 44 insertions, 3 deletions
diff --git a/vcl/inc/skia/gdiimpl.hxx b/vcl/inc/skia/gdiimpl.hxx
index af12c994d462..35106dba2ca7 100644
--- a/vcl/inc/skia/gdiimpl.hxx
+++ b/vcl/inc/skia/gdiimpl.hxx
@@ -219,6 +219,14 @@ protected:
 
     void drawMask(const SalTwoRect& rPosAry, const SkBitmap& rBitmap, Color nMaskColor);
 
+    // Which Skia backend to use.
+    enum RenderMethod
+    {
+        RenderRaster,
+        RenderVulkan
+    };
+    static RenderMethod renderMethodToUse();
+
     SalGraphics& mParent;
     /// Pointer to the SalFrame or SalVirtualDevice
     SalGeometryProvider* mProvider;
diff --git a/vcl/skia/gdiimpl.cxx b/vcl/skia/gdiimpl.cxx
index f17800402818..07a59c9a7ef8 100644
--- a/vcl/skia/gdiimpl.cxx
+++ b/vcl/skia/gdiimpl.cxx
@@ -103,6 +103,20 @@ public:
     }
 };
 
+SkiaSalGraphicsImpl::RenderMethod SkiaSalGraphicsImpl::renderMethodToUse()
+{
+    static RenderMethod method = [] {
+        if (const char* env = getenv("SAL_SKIA"))
+        { // TODO switch the default later
+            if (strcmp(env, "vk") == 0 || strcmp(env, "vulkan") == 0)
+                return RenderVulkan;
+        }
+        return RenderRaster;
+    }();
+
+    return method;
+}
+
 SkiaSalGraphicsImpl::SkiaSalGraphicsImpl(SalGraphics& rParent, SalGeometryProvider* pProvider)
     : mParent(rParent)
     , mProvider(pProvider)
diff --git a/vcl/skia/win/gdiimpl.cxx b/vcl/skia/win/gdiimpl.cxx
index c597b89b657e..92af2fcad42f 100644
--- a/vcl/skia/win/gdiimpl.cxx
+++ b/vcl/skia/win/gdiimpl.cxx
@@ -54,8 +54,17 @@ void WinSkiaSalGraphicsImpl::createSurface()
     // valid here, but better check.
     assert(GetWidth() != 0 && GetHeight() != 0);
     sk_app::DisplayParams displayParams;
-    mWindowContext
-        = sk_app::window_context_factory::MakeRasterForWin(mWinParent.gethWnd(), displayParams);
+    switch (renderMethodToUse())
+    {
+        case RenderRaster:
+            mWindowContext = sk_app::window_context_factory::MakeRasterForWin(mWinParent.gethWnd(),
+                                                                              displayParams);
+            break;
+        case RenderVulkan:
+            mWindowContext = sk_app::window_context_factory::MakeVulkanForWin(mWinParent.gethWnd(),
+                                                                              displayParams);
+            break;
+    }
     assert(SkToBool(mWindowContext)); // TODO
     mSurface = mWindowContext->getBackbufferSurface();
     assert(mSurface.get());
diff --git a/vcl/skia/x11/gdiimpl.cxx b/vcl/skia/x11/gdiimpl.cxx
index 8521a8fd01ad..36dc8d5ecf13 100644
--- a/vcl/skia/x11/gdiimpl.cxx
+++ b/vcl/skia/x11/gdiimpl.cxx
@@ -59,7 +59,17 @@ void X11SkiaSalGraphicsImpl::createSurface()
     winInfo.fVisualInfo = const_cast<SalVisual*>(&mParent.GetVisual());
     winInfo.fWidth = GetWidth();
     winInfo.fHeight = GetHeight();
-    mWindowContext = sk_app::window_context_factory::MakeRasterForXlib(winInfo, displayParams);
+    switch (renderMethodToUse())
+    {
+        case RenderRaster:
+            mWindowContext
+                = sk_app::window_context_factory::MakeRasterForXlib(winInfo, displayParams);
+            break;
+        case RenderVulkan:
+            mWindowContext
+                = sk_app::window_context_factory::MakeVulkanForXlib(winInfo, displayParams);
+            break;
+    }
     assert(SkToBool(mWindowContext)); // TODO
     mSurface = mWindowContext->getBackbufferSurface();
     assert(mSurface.get());