1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/composite/ThebesLayerComposite.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,208 @@
1.4 +/* -*- Mode: C++; tab-width: 20; 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 "ThebesLayerComposite.h"
1.10 +#include "CompositableHost.h" // for TiledLayerProperties, etc
1.11 +#include "FrameMetrics.h" // for FrameMetrics
1.12 +#include "Units.h" // for CSSRect, LayerPixel, etc
1.13 +#include "gfx2DGlue.h" // for ToMatrix4x4
1.14 +#include "gfxUtils.h" // for gfxUtils, etc
1.15 +#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
1.16 +#include "mozilla/gfx/Matrix.h" // for Matrix4x4
1.17 +#include "mozilla/gfx/Point.h" // for Point
1.18 +#include "mozilla/gfx/Rect.h" // for RoundedToInt, Rect
1.19 +#include "mozilla/gfx/Types.h" // for Filter::Filter::LINEAR
1.20 +#include "mozilla/layers/Compositor.h" // for Compositor
1.21 +#include "mozilla/layers/ContentHost.h" // for ContentHost
1.22 +#include "mozilla/layers/Effects.h" // for EffectChain
1.23 +#include "mozilla/mozalloc.h" // for operator delete
1.24 +#include "nsAString.h"
1.25 +#include "nsAutoPtr.h" // for nsRefPtr
1.26 +#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
1.27 +#include "nsMathUtils.h" // for NS_lround
1.28 +#include "nsPoint.h" // for nsIntPoint
1.29 +#include "nsRect.h" // for nsIntRect
1.30 +#include "nsSize.h" // for nsIntSize
1.31 +#include "nsString.h" // for nsAutoCString
1.32 +#include "TextRenderer.h"
1.33 +#include "GeckoProfiler.h"
1.34 +
1.35 +namespace mozilla {
1.36 +namespace layers {
1.37 +
1.38 +class TiledLayerComposer;
1.39 +
1.40 +ThebesLayerComposite::ThebesLayerComposite(LayerManagerComposite *aManager)
1.41 + : ThebesLayer(aManager, nullptr)
1.42 + , LayerComposite(aManager)
1.43 + , mBuffer(nullptr)
1.44 + , mRequiresTiledProperties(false)
1.45 +{
1.46 + MOZ_COUNT_CTOR(ThebesLayerComposite);
1.47 + mImplData = static_cast<LayerComposite*>(this);
1.48 +}
1.49 +
1.50 +ThebesLayerComposite::~ThebesLayerComposite()
1.51 +{
1.52 + MOZ_COUNT_DTOR(ThebesLayerComposite);
1.53 + CleanupResources();
1.54 +}
1.55 +
1.56 +bool
1.57 +ThebesLayerComposite::SetCompositableHost(CompositableHost* aHost)
1.58 +{
1.59 + switch (aHost->GetType()) {
1.60 + case BUFFER_CONTENT_INC:
1.61 + case BUFFER_TILED:
1.62 + case COMPOSITABLE_CONTENT_SINGLE:
1.63 + case COMPOSITABLE_CONTENT_DOUBLE:
1.64 + mBuffer = static_cast<ContentHost*>(aHost);
1.65 + return true;
1.66 + default:
1.67 + return false;
1.68 + }
1.69 +}
1.70 +
1.71 +void
1.72 +ThebesLayerComposite::Disconnect()
1.73 +{
1.74 + Destroy();
1.75 +}
1.76 +
1.77 +void
1.78 +ThebesLayerComposite::Destroy()
1.79 +{
1.80 + if (!mDestroyed) {
1.81 + CleanupResources();
1.82 + mDestroyed = true;
1.83 + }
1.84 +}
1.85 +
1.86 +Layer*
1.87 +ThebesLayerComposite::GetLayer()
1.88 +{
1.89 + return this;
1.90 +}
1.91 +
1.92 +TiledLayerComposer*
1.93 +ThebesLayerComposite::GetTiledLayerComposer()
1.94 +{
1.95 + if (!mBuffer) {
1.96 + return nullptr;
1.97 + }
1.98 + MOZ_ASSERT(mBuffer->IsAttached());
1.99 + return mBuffer->AsTiledLayerComposer();
1.100 +}
1.101 +
1.102 +LayerRenderState
1.103 +ThebesLayerComposite::GetRenderState()
1.104 +{
1.105 + if (!mBuffer || !mBuffer->IsAttached() || mDestroyed) {
1.106 + return LayerRenderState();
1.107 + }
1.108 + return mBuffer->GetRenderState();
1.109 +}
1.110 +
1.111 +void
1.112 +ThebesLayerComposite::RenderLayer(const nsIntRect& aClipRect)
1.113 +{
1.114 + if (!mBuffer || !mBuffer->IsAttached()) {
1.115 + return;
1.116 + }
1.117 + PROFILER_LABEL("ThebesLayerComposite", "RenderLayer");
1.118 +
1.119 + MOZ_ASSERT(mBuffer->GetCompositor() == mCompositeManager->GetCompositor() &&
1.120 + mBuffer->GetLayer() == this,
1.121 + "buffer is corrupted");
1.122 +
1.123 + gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height);
1.124 +
1.125 +#ifdef MOZ_DUMP_PAINTING
1.126 + if (gfxUtils::sDumpPainting) {
1.127 + RefPtr<gfx::DataSourceSurface> surf = mBuffer->GetAsSurface();
1.128 + if (surf) {
1.129 + WriteSnapshotToDumpFile(this, surf);
1.130 + }
1.131 + }
1.132 +#endif
1.133 +
1.134 + EffectChain effectChain(this);
1.135 + LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain);
1.136 +
1.137 + nsIntRegion visibleRegion = GetEffectiveVisibleRegion();
1.138 +
1.139 + TiledLayerProperties tiledLayerProps;
1.140 + if (mRequiresTiledProperties) {
1.141 + tiledLayerProps.mVisibleRegion = visibleRegion;
1.142 + tiledLayerProps.mEffectiveResolution = GetEffectiveResolution();
1.143 + tiledLayerProps.mValidRegion = mValidRegion;
1.144 + }
1.145 +
1.146 + mBuffer->SetPaintWillResample(MayResample());
1.147 +
1.148 + mBuffer->Composite(effectChain,
1.149 + GetEffectiveOpacity(),
1.150 + GetEffectiveTransform(),
1.151 + gfx::Filter::LINEAR,
1.152 + clipRect,
1.153 + &visibleRegion,
1.154 + mRequiresTiledProperties ? &tiledLayerProps
1.155 + : nullptr);
1.156 + mBuffer->BumpFlashCounter();
1.157 +
1.158 + if (mRequiresTiledProperties) {
1.159 + mValidRegion = tiledLayerProps.mValidRegion;
1.160 + }
1.161 +
1.162 + mCompositeManager->GetCompositor()->MakeCurrent();
1.163 +}
1.164 +
1.165 +CompositableHost*
1.166 +ThebesLayerComposite::GetCompositableHost()
1.167 +{
1.168 + if (mBuffer && mBuffer->IsAttached()) {
1.169 + return mBuffer.get();
1.170 + }
1.171 +
1.172 + return nullptr;
1.173 +}
1.174 +
1.175 +void
1.176 +ThebesLayerComposite::CleanupResources()
1.177 +{
1.178 + if (mBuffer) {
1.179 + mBuffer->Detach(this);
1.180 + }
1.181 + mBuffer = nullptr;
1.182 +}
1.183 +
1.184 +CSSToScreenScale
1.185 +ThebesLayerComposite::GetEffectiveResolution()
1.186 +{
1.187 + for (ContainerLayer* parent = GetParent(); parent; parent = parent->GetParent()) {
1.188 + const FrameMetrics& metrics = parent->GetFrameMetrics();
1.189 + if (metrics.GetScrollId() != FrameMetrics::NULL_SCROLL_ID) {
1.190 + return metrics.GetZoom();
1.191 + }
1.192 + }
1.193 +
1.194 + return CSSToScreenScale(1.0);
1.195 +}
1.196 +
1.197 +nsACString&
1.198 +ThebesLayerComposite::PrintInfo(nsACString& aTo, const char* aPrefix)
1.199 +{
1.200 + ThebesLayer::PrintInfo(aTo, aPrefix);
1.201 + aTo += "\n";
1.202 + if (mBuffer && mBuffer->IsAttached()) {
1.203 + nsAutoCString pfx(aPrefix);
1.204 + pfx += " ";
1.205 + mBuffer->PrintInfo(aTo, pfx.get());
1.206 + }
1.207 + return aTo;
1.208 +}
1.209 +
1.210 +} /* layers */
1.211 +} /* mozilla */
