Bug 648484, part D: Allow PuppetWidgets to create D3D10 layer managers (for the time being). r=roc

layout/ipc/RenderFrameParent.cpp

@@ -721,29 +721,14 @@ RenderFrameParent::AllocPLayers(LayerManager::LayersBackend* aBackendType)
     *aBackendType = LayerManager::LAYERS_NONE;
     return nsnull;
   }
-
   LayerManager* lm = GetLayerManager();
-  switch (*aBackendType = lm->GetBackendType()) {
-  case LayerManager::LAYERS_BASIC: {
-    BasicShadowLayerManager* bslm = static_cast<BasicShadowLayerManager*>(lm);
-    return new ShadowLayersParent(bslm);
-  }
-  case LayerManager::LAYERS_OPENGL: {
-    LayerManagerOGL* lmo = static_cast<LayerManagerOGL*>(lm);
-    return new ShadowLayersParent(lmo);
-  }
-#ifdef MOZ_ENABLE_D3D9_LAYER
-  case LayerManager::LAYERS_D3D9: {
-    LayerManagerD3D9* lmd3d9 = static_cast<LayerManagerD3D9*>(lm);
-    return new ShadowLayersParent(lmd3d9);
-  }
-#endif //MOZ_ENABLE_D3D9_LAYER
-  default: {
+  ShadowLayerManager* slm = lm->AsShadowManager();
+  if (!slm) {
      NS_WARNING("shadow layers no sprechen D3D backend yet");
-    *aBackendType = LayerManager::LAYERS_NONE;
      return nsnull;
   }
-  }
+  *aBackendType = lm->GetBackendType();
+  return new ShadowLayersParent(slm);
 }
 
 bool

widget/src/xpwidgets/Makefile.in

@@ -97,6 +97,10 @@ ifdef MOZ_X11
 SHARED_LIBRARY_LIBS += ../shared/x11/$(LIB_PREFIX)widget_shared_x11.$(LIB_SUFFIX)
 endif
 
+ifdef MOZ_ENABLE_D3D10_LAYER
+DEFINES		+= -DMOZ_ENABLE_D3D10_LAYER
+endif
+
 LOCAL_INCLUDES	+= \
 		-I$(srcdir)/../$(MOZ_WIDGET_TOOLKIT) \
 		-I$(srcdir)/../shared \

widget/src/xpwidgets/PuppetWidget.cpp

@@ -40,6 +40,9 @@
 
 #include "mozilla/dom/PBrowserChild.h"
 #include "BasicLayers.h"
+#if defined(MOZ_ENABLE_D3D10_LAYER)
+# include "LayerManagerD3D10.h"
+#endif
 
 #include "gfxPlatform.h"
 #include "PuppetWidget.h"
@@ -335,10 +338,23 @@ PuppetWidget::GetLayerManager(PLayersChild* aShadowManager,
                               LayerManagerPersistence aPersistence,
                               bool* aAllowRetaining)
 {
+  if (!mLayerManager) {
+    // The backend hint is a temporary placeholder until Azure, when
+    // all content-process layer managers will be BasicLayerManagers.
+#if defined(MOZ_ENABLE_D3D10_LAYER)
+    if (LayerManager::LAYERS_D3D10 == aBackendHint) {
+      nsRefPtr<LayerManagerD3D10> m = new LayerManagerD3D10(this);
+      m->AsShadowForwarder()->SetShadowManager(aShadowManager);
+      if (m->Initialize()) {
+        mLayerManager = m;
+      }
+    }
+#endif
     if (!mLayerManager) {
       mLayerManager = new BasicShadowLayerManager(this);
       mLayerManager->AsShadowForwarder()->SetShadowManager(aShadowManager);
     }
+  }
   if (aAllowRetaining) {
     *aAllowRetaining = true;
   }
@@ -542,11 +558,16 @@ PuppetWidget::DispatchPaintEvent()
                          nsCAutoString("PuppetWidget"), nsnull);
 #endif
 
+    LayerManager* lm = GetLayerManager();
+    if (LayerManager::LAYERS_D3D10 == mLayerManager->GetBackendType()) {
+      DispatchEvent(&event, status);
+    } else {
       nsRefPtr<gfxContext> ctx = new gfxContext(mSurface);
       AutoLayerManagerSetup setupLayerManager(this, ctx,
                                               BasicLayerManager::BUFFER_NONE);
       DispatchEvent(&event, status);  
     }
+  }
 
   nsPaintEvent didPaintEvent(PR_TRUE, NS_DID_PAINT, this);
   DispatchEvent(&didPaintEvent, status);