b=979489; Implement SimpleTiledContentClient and friends; r=jrmuizel

gfx/layers/client/TextureClient.cpp

@@ -52,6 +52,12 @@
 #  include "gfxSharedImageSurface.h"
 #endif
 
+#if 0
+#define RECYCLE_LOG(...) printf_stderr(__VA_ARGS__)
+#else
+#define RECYCLE_LOG(...) do { } while (0)
+#endif
+
 using namespace mozilla::gl;
 using namespace mozilla::gfx;
 
@@ -90,6 +96,20 @@ public:
 
   bool Recv__delete__() MOZ_OVERRIDE;
 
+  bool RecvCompositorRecycle()
+  {
+    RECYCLE_LOG("Receive recycle %p (%p)\n", mTextureClient, mWaitForRecycle.get());
+    mWaitForRecycle = nullptr;
+    return true;
+  }
+
+  void WaitForCompositorRecycle()
+  {
+    mWaitForRecycle = mTextureClient;
+    RECYCLE_LOG("Wait for recycle %p\n", mWaitForRecycle.get());
+    SendClientRecycle();
+  }
+
   /**
    * Only used during the deallocation phase iff we need synchronization between
    * the client and host side for deallocation (that is, when the data is going
@@ -128,6 +148,7 @@ private:
   }
 
   RefPtr<CompositableForwarder> mForwarder;
+  RefPtr<TextureClient> mWaitForRecycle;
   TextureClientData* mTextureData;
   TextureClient* mTextureClient;
   bool mIPCOpen;
@@ -138,6 +159,7 @@ private:
 void
 TextureChild::DeleteTextureData()
 {
+  mWaitForRecycle = nullptr;
   if (mTextureData) {
     mTextureData->DeallocateSharedData(GetAllocator());
     delete mTextureData;
@@ -158,6 +180,7 @@ TextureChild::ActorDestroy(ActorDestroyReason why)
   if (mTextureClient) {
     mTextureClient->mActor = nullptr;
   }
+  mWaitForRecycle = nullptr;
 }
 
 // static
@@ -181,7 +204,13 @@ TextureClient::DestroyIPDLActor(PTextureChild* actor)
 TextureClient*
 TextureClient::AsTextureClient(PTextureChild* actor)
 {
-  return actor? static_cast<TextureChild*>(actor)->mTextureClient : nullptr;
+  return actor ? static_cast<TextureChild*>(actor)->mTextureClient : nullptr;
+}
+
+void
+TextureClient::WaitForCompositorRecycle()
+{
+  mActor->WaitForCompositorRecycle();
 }
 
 bool