michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * vim: sw=2 ts=8 et :
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "CompositableTransactionParent.h"
michael@0: #include "CompositableHost.h"           // for CompositableParent, etc
michael@0: #include "CompositorParent.h"           // for CompositorParent
michael@0: #include "GLContext.h"                  // for GLContext
michael@0: #include "Layers.h"                     // for Layer
michael@0: #include "RenderTrace.h"                // for RenderTraceInvalidateEnd, etc
michael@0: #include "TiledLayerBuffer.h"           // for TiledLayerComposer
michael@0: #include "mozilla/Assertions.h"         // for MOZ_ASSERT, etc
michael@0: #include "mozilla/RefPtr.h"             // for RefPtr
michael@0: #include "mozilla/layers/CompositorTypes.h"
michael@0: #include "mozilla/layers/ContentHost.h"  // for ContentHostBase
michael@0: #include "mozilla/layers/LayerManagerComposite.h"
michael@0: #include "mozilla/layers/LayersSurfaces.h"  // for SurfaceDescriptor
michael@0: #include "mozilla/layers/LayersTypes.h"  // for MOZ_LAYERS_LOG
michael@0: #include "mozilla/layers/TextureHost.h"  // for TextureHost
michael@0: #include "mozilla/layers/TextureHostOGL.h"  // for TextureHostOGL
michael@0: #include "mozilla/layers/ThebesLayerComposite.h"
michael@0: #include "mozilla/mozalloc.h"           // for operator delete
michael@0: #include "nsDebug.h"                    // for NS_WARNING, NS_ASSERTION
michael@0: #include "nsRegion.h"                   // for nsIntRegion
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace layers {
michael@0: 
michael@0: class ClientTiledLayerBuffer;
michael@0: class Compositor;
michael@0: 
michael@0: template<typename Op>
michael@0: CompositableHost* AsCompositable(const Op& op)
michael@0: {
michael@0:   return CompositableHost::FromIPDLActor(op.compositableParent());
michael@0: }
michael@0: 
michael@0: // This function can in some cases fail and return false without it being a bug.
michael@0: // This can theoretically happen if the ImageBridge sends frames before
michael@0: // we created the layer tree. Since we can't enforce that the layer
michael@0: // tree is already created before ImageBridge operates, there isn't much
michael@0: // we can do about it, but in practice it is very rare.
michael@0: // Typically when a tab with a video is dragged from a window to another,
michael@0: // there can be a short time when the video is still sending frames
michael@0: // asynchonously while the layer tree is not reconstructed. It's not a
michael@0: // big deal.
michael@0: // Note that Layers transactions do not need to call this because they always
michael@0: // schedule the composition, in LayerManagerComposite::EndTransaction.
michael@0: template<typename T>
michael@0: bool ScheduleComposition(const T& op)
michael@0: {
michael@0:   CompositableHost* comp = AsCompositable(op);
michael@0:   uint64_t id = comp->GetCompositorID();
michael@0:   if (!comp || !id) {
michael@0:     return false;
michael@0:   }
michael@0:   CompositorParent* cp = CompositorParent::GetCompositor(id);
michael@0:   if (!cp) {
michael@0:     return false;
michael@0:   }
michael@0:   cp->ScheduleComposition();
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: bool
michael@0: CompositableParentManager::ReceiveCompositableUpdate(const CompositableOperation& aEdit,
michael@0:                                                      EditReplyVector& replyv)
michael@0: {
michael@0:   switch (aEdit.type()) {
michael@0:     case CompositableOperation::TOpCreatedIncrementalTexture: {
michael@0:       MOZ_LAYERS_LOG(("[ParentSide] Created texture"));
michael@0:       const OpCreatedIncrementalTexture& op = aEdit.get_OpCreatedIncrementalTexture();
michael@0:       CompositableHost* compositable = AsCompositable(op);
michael@0: 
michael@0:       bool success =
michael@0:         compositable->CreatedIncrementalTexture(this,
michael@0:                                                 op.textureInfo(),
michael@0:                                                 op.bufferRect());
michael@0:       if (!success) {
michael@0:         return false;
michael@0:       }
michael@0:       break;
michael@0:     }
michael@0:     case CompositableOperation::TOpPaintTextureRegion: {
michael@0:       MOZ_LAYERS_LOG(("[ParentSide] Paint ThebesLayer"));
michael@0: 
michael@0:       const OpPaintTextureRegion& op = aEdit.get_OpPaintTextureRegion();
michael@0:       CompositableHost* compositable = AsCompositable(op);
michael@0:       Layer* layer = compositable->GetLayer();
michael@0:       if (!layer || layer->GetType() != Layer::TYPE_THEBES) {
michael@0:         return false;
michael@0:       }
michael@0:       ThebesLayerComposite* thebes = static_cast<ThebesLayerComposite*>(layer);
michael@0: 
michael@0:       const ThebesBufferData& bufferData = op.bufferData();
michael@0: 
michael@0:       RenderTraceInvalidateStart(thebes, "FF00FF", op.updatedRegion().GetBounds());
michael@0: 
michael@0:       nsIntRegion frontUpdatedRegion;
michael@0:       if (!compositable->UpdateThebes(bufferData,
michael@0:                                       op.updatedRegion(),
michael@0:                                       thebes->GetValidRegion(),
michael@0:                                       &frontUpdatedRegion))
michael@0:       {
michael@0:         return false;
michael@0:       }
michael@0:       replyv.push_back(
michael@0:         OpContentBufferSwap(op.compositableParent(), nullptr, frontUpdatedRegion));
michael@0: 
michael@0:       RenderTraceInvalidateEnd(thebes, "FF00FF");
michael@0:       // return texure data to client if necessary
michael@0:       ReturnTextureDataIfNecessary(compositable, replyv, op.compositableParent());
michael@0:       break;
michael@0:     }
michael@0:     case CompositableOperation::TOpPaintTextureIncremental: {
michael@0:       MOZ_LAYERS_LOG(("[ParentSide] Paint ThebesLayer"));
michael@0: 
michael@0:       const OpPaintTextureIncremental& op = aEdit.get_OpPaintTextureIncremental();
michael@0: 
michael@0:       CompositableHost* compositable = AsCompositable(op);
michael@0: 
michael@0:       SurfaceDescriptor desc = op.image();
michael@0: 
michael@0:       compositable->UpdateIncremental(op.textureId(),
michael@0:                                       desc,
michael@0:                                       op.updatedRegion(),
michael@0:                                       op.bufferRect(),
michael@0:                                       op.bufferRotation());
michael@0:       break;
michael@0:     }
michael@0:     case CompositableOperation::TOpUpdatePictureRect: {
michael@0:       const OpUpdatePictureRect& op = aEdit.get_OpUpdatePictureRect();
michael@0:       CompositableHost* compositable = AsCompositable(op);
michael@0:       MOZ_ASSERT(compositable);
michael@0:       compositable->SetPictureRect(op.picture());
michael@0:       break;
michael@0:     }
michael@0:     case CompositableOperation::TOpUseTiledLayerBuffer: {
michael@0:       MOZ_LAYERS_LOG(("[ParentSide] Paint TiledLayerBuffer"));
michael@0:       const OpUseTiledLayerBuffer& op = aEdit.get_OpUseTiledLayerBuffer();
michael@0:       CompositableHost* compositable = AsCompositable(op);
michael@0: 
michael@0:       TiledLayerComposer* tileComposer = compositable->AsTiledLayerComposer();
michael@0:       NS_ASSERTION(tileComposer, "compositable is not a tile composer");
michael@0: 
michael@0:       const SurfaceDescriptorTiles& tileDesc = op.tileLayerDescriptor();
michael@0:       tileComposer->UseTiledLayerBuffer(this, tileDesc);
michael@0:       break;
michael@0:     }
michael@0:     case CompositableOperation::TOpRemoveTexture: {
michael@0:       const OpRemoveTexture& op = aEdit.get_OpRemoveTexture();
michael@0:       CompositableHost* compositable = AsCompositable(op);
michael@0:       RefPtr<TextureHost> tex = TextureHost::AsTextureHost(op.textureParent());
michael@0: 
michael@0:       MOZ_ASSERT(tex.get());
michael@0:       compositable->RemoveTextureHost(tex);
michael@0:       // return texure data to client if necessary
michael@0:       ReturnTextureDataIfNecessary(compositable, replyv, op.compositableParent());
michael@0:       break;
michael@0:     }
michael@0:     case CompositableOperation::TOpUseTexture: {
michael@0:       const OpUseTexture& op = aEdit.get_OpUseTexture();
michael@0:       CompositableHost* compositable = AsCompositable(op);
michael@0:       RefPtr<TextureHost> tex = TextureHost::AsTextureHost(op.textureParent());
michael@0: 
michael@0:       MOZ_ASSERT(tex.get());
michael@0:       compositable->UseTextureHost(tex);
michael@0: 
michael@0:       if (IsAsync()) {
michael@0:         ScheduleComposition(op);
michael@0:         // Async layer updates don't trigger invalidation, manually tell the layer
michael@0:         // that its content have changed.
michael@0:         if (compositable->GetLayer()) {
michael@0:           compositable->GetLayer()->SetInvalidRectToVisibleRegion();
michael@0:         }
michael@0:       }
michael@0:       // return texure data to client if necessary
michael@0:       ReturnTextureDataIfNecessary(compositable, replyv, op.compositableParent());
michael@0:       break;
michael@0:     }
michael@0:     case CompositableOperation::TOpUseComponentAlphaTextures: {
michael@0:       const OpUseComponentAlphaTextures& op = aEdit.get_OpUseComponentAlphaTextures();
michael@0:       CompositableHost* compositable = AsCompositable(op);
michael@0:       RefPtr<TextureHost> texOnBlack = TextureHost::AsTextureHost(op.textureOnBlackParent());
michael@0:       RefPtr<TextureHost> texOnWhite = TextureHost::AsTextureHost(op.textureOnWhiteParent());
michael@0: 
michael@0:       MOZ_ASSERT(texOnBlack && texOnWhite);
michael@0:       compositable->UseComponentAlphaTextures(texOnBlack, texOnWhite);
michael@0: 
michael@0:       if (IsAsync()) {
michael@0:         ScheduleComposition(op);
michael@0:       }
michael@0:       // return texure data to client if necessary
michael@0:       ReturnTextureDataIfNecessary(compositable, replyv, op.compositableParent());
michael@0:       break;
michael@0:     }
michael@0:     case CompositableOperation::TOpUpdateTexture: {
michael@0:       const OpUpdateTexture& op = aEdit.get_OpUpdateTexture();
michael@0:       RefPtr<TextureHost> texture = TextureHost::AsTextureHost(op.textureParent());
michael@0:       MOZ_ASSERT(texture);
michael@0: 
michael@0:       texture->Updated(op.region().type() == MaybeRegion::TnsIntRegion
michael@0:                        ? &op.region().get_nsIntRegion()
michael@0:                        : nullptr); // no region means invalidate the entire surface
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     default: {
michael@0:       MOZ_ASSERT(false, "bad type");
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: #if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
michael@0: void
michael@0: CompositableParentManager::ReturnTextureDataIfNecessary(CompositableHost* aCompositable,
michael@0:                                                         EditReplyVector& replyv,
michael@0:                                                         PCompositableParent* aParent)
michael@0: {
michael@0:   if (!aCompositable || !aCompositable->GetCompositableBackendSpecificData()) {
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   const std::vector< RefPtr<TextureHost> > textureList =
michael@0:         aCompositable->GetCompositableBackendSpecificData()->GetPendingReleaseFenceTextureList();
michael@0:   // Return pending Texture data
michael@0:   for (size_t i = 0; i < textureList.size(); i++) {
michael@0:     // File descriptor number is limited to 4 per IPC message.
michael@0:     // See Bug 986253
michael@0:     if (mPrevFenceHandles.size() >= 4) {
michael@0:       break;
michael@0:     }
michael@0:     TextureHostOGL* hostOGL = textureList[i]->AsHostOGL();
michael@0:     PTextureParent* actor = textureList[i]->GetIPDLActor();
michael@0:     if (!hostOGL || !actor) {
michael@0:       continue;
michael@0:     }
michael@0:     android::sp<android::Fence> fence = hostOGL->GetAndResetReleaseFence();
michael@0:     if (fence.get() && fence->isValid()) {
michael@0:       FenceHandle handle = FenceHandle(fence);
michael@0:       replyv.push_back(ReturnReleaseFence(aParent, nullptr, actor, nullptr, handle));
michael@0:       // Hold fence handle to prevent fence's file descriptor is closed before IPC happens.
michael@0:       mPrevFenceHandles.push_back(handle);
michael@0:     }
michael@0:   }
michael@0:   aCompositable->GetCompositableBackendSpecificData()->ClearPendingReleaseFenceTextureList();
michael@0: }
michael@0: #else
michael@0: void
michael@0: CompositableParentManager::ReturnTextureDataIfNecessary(CompositableHost* aCompositable,
michael@0:                                                        EditReplyVector& replyv,
michael@0:                                                        PCompositableParent* aParent)
michael@0: {
michael@0:   if (!aCompositable || !aCompositable->GetCompositableBackendSpecificData()) {
michael@0:     return;
michael@0:   }
michael@0:   aCompositable->GetCompositableBackendSpecificData()->ClearPendingReleaseFenceTextureList();
michael@0: }
michael@0: #endif
michael@0: 
michael@0: void
michael@0: CompositableParentManager::ClearPrevFenceHandles()
michael@0: {
michael@0:   mPrevFenceHandles.clear();
michael@0: }
michael@0: 
michael@0: } // namespace
michael@0: } // namespace
michael@0: