1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/client/ClientImageLayer.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,184 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "ClientLayerManager.h" // for ClientLayerManager, etc
1.10 +#include "ImageContainer.h" // for AutoLockImage, etc
1.11 +#include "ImageLayers.h" // for ImageLayer
1.12 +#include "mozilla/Attributes.h" // for MOZ_OVERRIDE
1.13 +#include "mozilla/RefPtr.h" // for RefPtr
1.14 +#include "mozilla/layers/CompositorTypes.h"
1.15 +#include "mozilla/layers/ImageClient.h" // for ImageClient, etc
1.16 +#include "mozilla/layers/LayersMessages.h" // for ImageLayerAttributes, etc
1.17 +#include "mozilla/mozalloc.h" // for operator delete, etc
1.18 +#include "nsAutoPtr.h" // for nsRefPtr, getter_AddRefs, etc
1.19 +#include "nsCOMPtr.h" // for already_AddRefed
1.20 +#include "nsDebug.h" // for NS_ASSERTION
1.21 +#include "nsISupportsImpl.h" // for Layer::AddRef, etc
1.22 +#include "nsRegion.h" // for nsIntRegion
1.23 +
1.24 +using namespace mozilla::gfx;
1.25 +
1.26 +namespace mozilla {
1.27 +namespace layers {
1.28 +
1.29 +class ClientImageLayer : public ImageLayer,
1.30 + public ClientLayer {
1.31 +public:
1.32 + ClientImageLayer(ClientLayerManager* aLayerManager)
1.33 + : ImageLayer(aLayerManager,
1.34 + static_cast<ClientLayer*>(MOZ_THIS_IN_INITIALIZER_LIST()))
1.35 + , mImageClientTypeContainer(BUFFER_UNKNOWN)
1.36 + {
1.37 + MOZ_COUNT_CTOR(ClientImageLayer);
1.38 + }
1.39 + virtual ~ClientImageLayer()
1.40 + {
1.41 + DestroyBackBuffer();
1.42 + MOZ_COUNT_DTOR(ClientImageLayer);
1.43 + }
1.44 +
1.45 + virtual void SetContainer(ImageContainer* aContainer) MOZ_OVERRIDE
1.46 + {
1.47 + ImageLayer::SetContainer(aContainer);
1.48 + mImageClientTypeContainer = BUFFER_UNKNOWN;
1.49 + }
1.50 +
1.51 + virtual void SetVisibleRegion(const nsIntRegion& aRegion)
1.52 + {
1.53 + NS_ASSERTION(ClientManager()->InConstruction(),
1.54 + "Can only set properties in construction phase");
1.55 + ImageLayer::SetVisibleRegion(aRegion);
1.56 + }
1.57 +
1.58 + virtual void RenderLayer();
1.59 +
1.60 + virtual void ClearCachedResources() MOZ_OVERRIDE
1.61 + {
1.62 + DestroyBackBuffer();
1.63 + }
1.64 +
1.65 + virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs)
1.66 + {
1.67 + aAttrs = ImageLayerAttributes(mFilter, mScaleToSize, mScaleMode);
1.68 + }
1.69 +
1.70 + virtual Layer* AsLayer() { return this; }
1.71 + virtual ShadowableLayer* AsShadowableLayer() { return this; }
1.72 +
1.73 + virtual void Disconnect()
1.74 + {
1.75 + DestroyBackBuffer();
1.76 + ClientLayer::Disconnect();
1.77 + }
1.78 +
1.79 + void DestroyBackBuffer()
1.80 + {
1.81 + if (mImageClient) {
1.82 + mImageClient->OnDetach();
1.83 + mImageClient = nullptr;
1.84 + }
1.85 + }
1.86 +
1.87 + virtual CompositableClient* GetCompositableClient() MOZ_OVERRIDE
1.88 + {
1.89 + return mImageClient;
1.90 + }
1.91 +
1.92 +protected:
1.93 + ClientLayerManager* ClientManager()
1.94 + {
1.95 + return static_cast<ClientLayerManager*>(mManager);
1.96 + }
1.97 +
1.98 + CompositableType GetImageClientType()
1.99 + {
1.100 + if (mImageClientTypeContainer != BUFFER_UNKNOWN) {
1.101 + return mImageClientTypeContainer;
1.102 + }
1.103 +
1.104 + if (mContainer->IsAsync()) {
1.105 + mImageClientTypeContainer = BUFFER_BRIDGE;
1.106 + return mImageClientTypeContainer;
1.107 + }
1.108 +
1.109 + RefPtr<gfx::SourceSurface> surface;
1.110 + AutoLockImage autoLock(mContainer, &surface);
1.111 +
1.112 +#ifdef MOZ_WIDGET_GONK
1.113 + // gralloc buffer needs BUFFER_IMAGE_BUFFERED to prevent
1.114 + // the buffer's usage conflict.
1.115 + mImageClientTypeContainer = autoLock.GetImage() ?
1.116 + BUFFER_IMAGE_BUFFERED : BUFFER_UNKNOWN;
1.117 +#else
1.118 + mImageClientTypeContainer = autoLock.GetImage() ?
1.119 + BUFFER_IMAGE_SINGLE : BUFFER_UNKNOWN;
1.120 +#endif
1.121 + return mImageClientTypeContainer;
1.122 + }
1.123 +
1.124 + RefPtr<ImageClient> mImageClient;
1.125 + CompositableType mImageClientTypeContainer;
1.126 +};
1.127 +
1.128 +void
1.129 +ClientImageLayer::RenderLayer()
1.130 +{
1.131 + if (GetMaskLayer()) {
1.132 + ToClientLayer(GetMaskLayer())->RenderLayer();
1.133 + }
1.134 +
1.135 + if (!mContainer) {
1.136 + return;
1.137 + }
1.138 +
1.139 + if (mImageClient) {
1.140 + mImageClient->OnTransaction();
1.141 + }
1.142 +
1.143 + if (!mImageClient ||
1.144 + !mImageClient->UpdateImage(mContainer, GetContentFlags())) {
1.145 + CompositableType type = GetImageClientType();
1.146 + if (type == BUFFER_UNKNOWN) {
1.147 + return;
1.148 + }
1.149 + TextureFlags flags = TEXTURE_FRONT;
1.150 + if (mDisallowBigImage) {
1.151 + flags |= TEXTURE_DISALLOW_BIGIMAGE;
1.152 + }
1.153 + mImageClient = ImageClient::CreateImageClient(type,
1.154 + ClientManager()->AsShadowForwarder(),
1.155 + flags);
1.156 + if (type == BUFFER_BRIDGE) {
1.157 + static_cast<ImageClientBridge*>(mImageClient.get())->SetLayer(this);
1.158 + }
1.159 +
1.160 + if (!mImageClient) {
1.161 + return;
1.162 + }
1.163 + if (HasShadow() && !mContainer->IsAsync()) {
1.164 + mImageClient->Connect();
1.165 + ClientManager()->AsShadowForwarder()->Attach(mImageClient, this);
1.166 + }
1.167 + if (!mImageClient->UpdateImage(mContainer, GetContentFlags())) {
1.168 + return;
1.169 + }
1.170 + }
1.171 + if (mImageClient) {
1.172 + mImageClient->OnTransaction();
1.173 + }
1.174 + ClientManager()->Hold(this);
1.175 +}
1.176 +
1.177 +already_AddRefed<ImageLayer>
1.178 +ClientLayerManager::CreateImageLayer()
1.179 +{
1.180 + NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
1.181 + nsRefPtr<ClientImageLayer> layer =
1.182 + new ClientImageLayer(this);
1.183 + CREATE_SHADOW(Image);
1.184 + return layer.forget();
1.185 +}
1.186 +}
1.187 +}
