From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- gfx/layers/basic/BasicContainerLayer.h | 103 +++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 gfx/layers/basic/BasicContainerLayer.h (limited to 'gfx/layers/basic/BasicContainerLayer.h') diff --git a/gfx/layers/basic/BasicContainerLayer.h b/gfx/layers/basic/BasicContainerLayer.h new file mode 100644 index 0000000000..07a3183a54 --- /dev/null +++ b/gfx/layers/basic/BasicContainerLayer.h @@ -0,0 +1,103 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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/. */ + +#ifndef GFX_BASICCONTAINERLAYER_H +#define GFX_BASICCONTAINERLAYER_H + +#include "BasicImplData.h" // for BasicImplData +#include "BasicLayers.h" // for BasicLayerManager +#include "Layers.h" // for Layer, ContainerLayer +#include "nsDebug.h" // for NS_ASSERTION +#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR +#include "nsISupportsUtils.h" // for NS_ADDREF, NS_RELEASE +#include "mozilla/gfx/Rect.h" + +namespace mozilla { +namespace layers { + +class BasicContainerLayer : public ContainerLayer, public BasicImplData { + public: + explicit BasicContainerLayer(BasicLayerManager* aManager) + : ContainerLayer(aManager, static_cast(this)) { + MOZ_COUNT_CTOR(BasicContainerLayer); + mSupportsComponentAlphaChildren = true; + } + + protected: + virtual ~BasicContainerLayer(); + + public: + void SetVisibleRegion(const LayerIntRegion& aRegion) override { + NS_ASSERTION(BasicManager()->InConstruction(), + "Can only set properties in construction phase"); + ContainerLayer::SetVisibleRegion(aRegion); + } + bool InsertAfter(Layer* aChild, Layer* aAfter) override { + if (!BasicManager()->InConstruction()) { + NS_ERROR("Can only set properties in construction phase"); + return false; + } + return ContainerLayer::InsertAfter(aChild, aAfter); + } + + bool RemoveChild(Layer* aChild) override { + if (!BasicManager()->InConstruction()) { + NS_ERROR("Can only set properties in construction phase"); + return false; + } + return ContainerLayer::RemoveChild(aChild); + } + + bool RepositionChild(Layer* aChild, Layer* aAfter) override { + if (!BasicManager()->InConstruction()) { + NS_ERROR("Can only set properties in construction phase"); + return false; + } + return ContainerLayer::RepositionChild(aChild, aAfter); + } + + void ComputeEffectiveTransforms( + const gfx::Matrix4x4& aTransformToSurface) override; + + /** + * Returns true when: + * a) no (non-hidden) childrens' visible areas overlap in + * (aInRect intersected with this layer's visible region). + * b) the (non-hidden) childrens' visible areas cover + * (aInRect intersected with this layer's visible region). + * c) this layer and all (non-hidden) children have transforms that are + * translations by integers. aInRect is in the root coordinate system. Child + * layers with opacity do not contribute to the covered area in check b). This + * method can be conservative; it's OK to return false under any + * circumstances. + */ + bool ChildrenPartitionVisibleRegion(const gfx::IntRect& aInRect); + + void ForceIntermediateSurface() { mUseIntermediateSurface = true; } + + void SetSupportsComponentAlphaChildren(bool aSupports) { + mSupportsComponentAlphaChildren = aSupports; + } + + void Validate(LayerManager::DrawPaintedLayerCallback aCallback, + void* aCallbackData, ReadbackProcessor* aReadback) override; + + /** + * We don't really have a hard restriction for max layer size, but we pick + * 4096 to avoid excessive memory usage. + */ + int32_t GetMaxLayerSize() override { return 4096; } + + protected: + BasicLayerManager* BasicManager() { + return static_cast(mManager); + } +}; + +} // namespace layers +} // namespace mozilla + +#endif -- cgit v1.2.3