Add m-esr52 at 52.6.0

1 files changed, 245 insertions, 0 deletions

diff --git a/gfx/layers/ipc/CompositableTransactionParent.cpp b/gfx/layers/ipc/CompositableTransactionParent.cpp
new file mode 100644
index 000000000..135011101
--- /dev/null
+++ b/gfx/layers/ipc/CompositableTransactionParent.cpp
@@ -0,0 +1,245 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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/. */
+
+#include "CompositableTransactionParent.h"
+#include "CompositableHost.h"           // for CompositableParent, etc
+#include "CompositorBridgeParent.h"     // for CompositorBridgeParent
+#include "GLContext.h"                  // for GLContext
+#include "Layers.h"                     // for Layer
+#include "RenderTrace.h"                // for RenderTraceInvalidateEnd, etc
+#include "mozilla/Assertions.h"         // for MOZ_ASSERT, etc
+#include "mozilla/RefPtr.h"             // for RefPtr
+#include "mozilla/layers/CompositorTypes.h"
+#include "mozilla/layers/ContentHost.h"  // for ContentHostBase
+#include "mozilla/layers/ImageBridgeParent.h" // for ImageBridgeParent
+#include "mozilla/layers/LayerManagerComposite.h"
+#include "mozilla/layers/LayersSurfaces.h"  // for SurfaceDescriptor
+#include "mozilla/layers/LayersTypes.h"  // for MOZ_LAYERS_LOG
+#include "mozilla/layers/TextureHost.h"  // for TextureHost
+#include "mozilla/layers/TextureHostOGL.h"  // for TextureHostOGL
+#include "mozilla/layers/TiledContentHost.h"
+#include "mozilla/layers/PaintedLayerComposite.h"
+#include "mozilla/mozalloc.h"           // for operator delete
+#include "mozilla/Unused.h"
+#include "nsDebug.h"                    // for NS_WARNING, NS_ASSERTION
+#include "nsRegion.h"                   // for nsIntRegion
+
+namespace mozilla {
+namespace layers {
+
+class ClientTiledLayerBuffer;
+class Compositor;
+
+// This function can in some cases fail and return false without it being a bug.
+// This can theoretically happen if the ImageBridge sends frames before
+// we created the layer tree. Since we can't enforce that the layer
+// tree is already created before ImageBridge operates, there isn't much
+// we can do about it, but in practice it is very rare.
+// Typically when a tab with a video is dragged from a window to another,
+// there can be a short time when the video is still sending frames
+// asynchonously while the layer tree is not reconstructed. It's not a
+// big deal.
+// Note that Layers transactions do not need to call this because they always
+// schedule the composition, in LayerManagerComposite::EndTransaction.
+static bool
+ScheduleComposition(CompositableHost* aCompositable)
+{
+  uint64_t id = aCompositable->GetCompositorID();
+  if (!id) {
+    return false;
+  }
+  CompositorBridgeParent* cp = CompositorBridgeParent::GetCompositorBridgeParent(id);
+  if (!cp) {
+    return false;
+  }
+  cp->ScheduleComposition();
+  return true;
+}
+
+bool
+CompositableParentManager::ReceiveCompositableUpdate(const CompositableOperation& aEdit,
+                                                     EditReplyVector& replyv)
+{
+  // Ignore all operations on compositables created on stale compositors. We
+  // return true because the child is unable to handle errors.
+  CompositableHost* compositable = CompositableHost::FromIPDLActor(aEdit.compositableParent());
+  if (compositable->GetCompositor() && !compositable->GetCompositor()->IsValid()) {
+    return true;
+  }
+
+  switch (aEdit.detail().type()) {
+    case CompositableOperationDetail::TOpPaintTextureRegion: {
+      MOZ_LAYERS_LOG(("[ParentSide] Paint PaintedLayer"));
+
+      const OpPaintTextureRegion& op = aEdit.detail().get_OpPaintTextureRegion();
+      Layer* layer = compositable->GetLayer();
+      if (!layer || layer->GetType() != Layer::TYPE_PAINTED) {
+        return false;
+      }
+      PaintedLayerComposite* thebes = static_cast<PaintedLayerComposite*>(layer);
+
+      const ThebesBufferData& bufferData = op.bufferData();
+
+      RenderTraceInvalidateStart(thebes, "FF00FF", op.updatedRegion().GetBounds());
+
+      nsIntRegion frontUpdatedRegion;
+      if (!compositable->UpdateThebes(bufferData,
+                                      op.updatedRegion(),
+                                      thebes->GetValidRegion(),
+                                      &frontUpdatedRegion))
+      {
+        return false;
+      }
+      replyv.push_back(
+        OpContentBufferSwap(aEdit.compositableParent(), nullptr, frontUpdatedRegion));
+
+      RenderTraceInvalidateEnd(thebes, "FF00FF");
+      break;
+    }
+    case CompositableOperationDetail::TOpUseTiledLayerBuffer: {
+      MOZ_LAYERS_LOG(("[ParentSide] Paint TiledLayerBuffer"));
+      const OpUseTiledLayerBuffer& op = aEdit.detail().get_OpUseTiledLayerBuffer();
+      TiledContentHost* tiledHost = compositable->AsTiledContentHost();
+
+      NS_ASSERTION(tiledHost, "The compositable is not tiled");
+
+      const SurfaceDescriptorTiles& tileDesc = op.tileLayerDescriptor();
+
+      bool success = tiledHost->UseTiledLayerBuffer(this, tileDesc);
+
+      const InfallibleTArray<TileDescriptor>& tileDescriptors = tileDesc.tiles();
+      for (size_t i = 0; i < tileDescriptors.Length(); i++) {
+        const TileDescriptor& tileDesc = tileDescriptors[i];
+        if (tileDesc.type() != TileDescriptor::TTexturedTileDescriptor) {
+          continue;
+        }
+        const TexturedTileDescriptor& texturedDesc = tileDesc.get_TexturedTileDescriptor();
+        RefPtr<TextureHost> texture = TextureHost::AsTextureHost(texturedDesc.textureParent());
+        if (texture) {
+          texture->SetLastFwdTransactionId(mFwdTransactionId);
+          // Make sure that each texture was handled by the compositable
+          // because the recycling logic depends on it.
+          MOZ_ASSERT(texture->NumCompositableRefs() > 0);
+        }
+        if (texturedDesc.textureOnWhite().type() == MaybeTexture::TPTextureParent) {
+          texture = TextureHost::AsTextureHost(texturedDesc.textureOnWhite().get_PTextureParent());
+          if (texture) {
+            texture->SetLastFwdTransactionId(mFwdTransactionId);
+            // Make sure that each texture was handled by the compositable
+            // because the recycling logic depends on it.
+            MOZ_ASSERT(texture->NumCompositableRefs() > 0);
+          }
+        }
+      }
+      if (!success) {
+        return false;
+      }
+      break;
+    }
+    case CompositableOperationDetail::TOpRemoveTexture: {
+      const OpRemoveTexture& op = aEdit.detail().get_OpRemoveTexture();
+
+      RefPtr<TextureHost> tex = TextureHost::AsTextureHost(op.textureParent());
+
+      MOZ_ASSERT(tex.get());
+      compositable->RemoveTextureHost(tex);
+      break;
+    }
+    case CompositableOperationDetail::TOpUseTexture: {
+      const OpUseTexture& op = aEdit.detail().get_OpUseTexture();
+
+      AutoTArray<CompositableHost::TimedTexture,4> textures;
+      for (auto& timedTexture : op.textures()) {
+        CompositableHost::TimedTexture* t = textures.AppendElement();
+        t->mTexture =
+            TextureHost::AsTextureHost(timedTexture.textureParent());
+        MOZ_ASSERT(t->mTexture);
+        t->mTimeStamp = timedTexture.timeStamp();
+        t->mPictureRect = timedTexture.picture();
+        t->mFrameID = timedTexture.frameID();
+        t->mProducerID = timedTexture.producerID();
+        t->mTexture->DeserializeReadLock(timedTexture.sharedLock(), this);
+      }
+      if (textures.Length() > 0) {
+        compositable->UseTextureHost(textures);
+
+        for (auto& timedTexture : op.textures()) {
+          RefPtr<TextureHost> texture = TextureHost::AsTextureHost(timedTexture.textureParent());
+          if (texture) {
+            texture->SetLastFwdTransactionId(mFwdTransactionId);
+            // Make sure that each texture was handled by the compositable
+            // because the recycling logic depends on it.
+            MOZ_ASSERT(texture->NumCompositableRefs() > 0);
+          }
+        }
+      }
+
+      if (UsesImageBridge() && compositable->GetLayer()) {
+        ScheduleComposition(compositable);
+      }
+      break;
+    }
+    case CompositableOperationDetail::TOpUseComponentAlphaTextures: {
+      const OpUseComponentAlphaTextures& op = aEdit.detail().get_OpUseComponentAlphaTextures();
+      RefPtr<TextureHost> texOnBlack = TextureHost::AsTextureHost(op.textureOnBlackParent());
+      RefPtr<TextureHost> texOnWhite = TextureHost::AsTextureHost(op.textureOnWhiteParent());
+      texOnBlack->DeserializeReadLock(op.sharedLockBlack(), this);
+      texOnWhite->DeserializeReadLock(op.sharedLockWhite(), this);
+
+      MOZ_ASSERT(texOnBlack && texOnWhite);
+      compositable->UseComponentAlphaTextures(texOnBlack, texOnWhite);
+
+      if (texOnBlack) {
+        texOnBlack->SetLastFwdTransactionId(mFwdTransactionId);
+        // Make sure that each texture was handled by the compositable
+        // because the recycling logic depends on it.
+        MOZ_ASSERT(texOnBlack->NumCompositableRefs() > 0);
+      }
+
+      if (texOnWhite) {
+        texOnWhite->SetLastFwdTransactionId(mFwdTransactionId);
+        // Make sure that each texture was handled by the compositable
+        // because the recycling logic depends on it.
+        MOZ_ASSERT(texOnWhite->NumCompositableRefs() > 0);
+      }
+
+      if (UsesImageBridge()) {
+        ScheduleComposition(compositable);
+      }
+      break;
+    }
+    default: {
+      MOZ_ASSERT(false, "bad type");
+    }
+  }
+
+  return true;
+}
+
+void
+CompositableParentManager::DestroyActor(const OpDestroy& aOp)
+{
+  switch (aOp.type()) {
+    case OpDestroy::TPTextureParent: {
+      auto actor = aOp.get_PTextureParent();
+      TextureHost::ReceivedDestroy(actor);
+      break;
+    }
+    case OpDestroy::TPCompositableParent: {
+      auto actor = aOp.get_PCompositableParent();
+      CompositableHost::ReceivedDestroy(actor);
+      break;
+    }
+    default: {
+      MOZ_ASSERT(false, "unsupported type");
+    }
+  }
+}
+
+} // namespace layers
+} // namespace mozilla
+