1 files changed, 169 insertions, 0 deletions
diff --git a/gfx/layers/composite/PaintedLayerComposite.cpp b/gfx/layers/composite/PaintedLayerComposite.cpp
new file mode 100644
index 0000000000..fe8028d12f
--- /dev/null
+++ b/gfx/layers/composite/PaintedLayerComposite.cpp
@@ -0,0 +1,169 @@
+/* -*- 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/. */
+
+#include "PaintedLayerComposite.h"
+#include "CompositableHost.h"            // for TiledLayerProperties, etc
+#include "FrameMetrics.h"                // for FrameMetrics
+#include "Units.h"                       // for CSSRect, LayerPixel, etc
+#include "gfxEnv.h"                      // for gfxEnv
+#include "mozilla/Assertions.h"          // for MOZ_ASSERT, etc
+#include "mozilla/gfx/Matrix.h"          // for Matrix4x4
+#include "mozilla/gfx/Point.h"           // for Point
+#include "mozilla/gfx/Polygon.h"         // for Polygon
+#include "mozilla/gfx/Rect.h"            // for RoundedToInt, Rect
+#include "mozilla/gfx/Types.h"           // for SamplingFilter::LINEAR
+#include "mozilla/layers/Compositor.h"   // for Compositor
+#include "mozilla/layers/ContentHost.h"  // for ContentHost
+#include "mozilla/layers/Effects.h"      // for EffectChain
+#include "mozilla/layers/LayerManagerCompositeUtils.h"
+#include "mozilla/mozalloc.h"  // for operator delete
+#include "nsAString.h"
+#include "mozilla/RefPtr.h"   // for nsRefPtr
+#include "nsISupportsImpl.h"  // for MOZ_COUNT_CTOR, etc
+#include "nsMathUtils.h"      // for NS_lround
+#include "nsString.h"         // for nsAutoCString
+#include "TextRenderer.h"
+#include "GeckoProfiler.h"
+
+namespace mozilla {
+namespace layers {
+
+PaintedLayerComposite::PaintedLayerComposite(LayerManagerComposite* aManager)
+    : PaintedLayer(aManager, nullptr),
+      LayerComposite(aManager),
+      mBuffer(nullptr) {
+  MOZ_COUNT_CTOR(PaintedLayerComposite);
+  mImplData = static_cast<LayerComposite*>(this);
+}
+
+PaintedLayerComposite::~PaintedLayerComposite() {
+  MOZ_COUNT_DTOR(PaintedLayerComposite);
+  CleanupResources();
+}
+
+bool PaintedLayerComposite::SetCompositableHost(CompositableHost* aHost) {
+  switch (aHost->GetType()) {
+    case CompositableType::CONTENT_TILED:
+    case CompositableType::CONTENT_SINGLE:
+    case CompositableType::CONTENT_DOUBLE: {
+      ContentHost* newBuffer = static_cast<ContentHost*>(aHost);
+      if (mBuffer && newBuffer != mBuffer) {
+        mBuffer->Detach(this);
+      }
+      mBuffer = newBuffer;
+      return true;
+    }
+    default:
+      return false;
+  }
+}
+
+void PaintedLayerComposite::Disconnect() { Destroy(); }
+
+void PaintedLayerComposite::Destroy() {
+  if (!mDestroyed) {
+    CleanupResources();
+    mDestroyed = true;
+  }
+}
+
+Layer* PaintedLayerComposite::GetLayer() { return this; }
+
+void PaintedLayerComposite::SetLayerManager(HostLayerManager* aManager) {
+  LayerComposite::SetLayerManager(aManager);
+  mManager = aManager;
+  if (mBuffer && mCompositor) {
+    mBuffer->SetTextureSourceProvider(mCompositor);
+  }
+}
+
+void PaintedLayerComposite::RenderLayer(const gfx::IntRect& aClipRect,
+                                        const Maybe<gfx::Polygon>& aGeometry) {
+  if (!mBuffer || !mBuffer->IsAttached()) {
+    return;
+  }
+  AUTO_PROFILER_LABEL("PaintedLayerComposite::RenderLayer", GRAPHICS);
+
+  Compositor* compositor = mCompositeManager->GetCompositor();
+
+  MOZ_ASSERT(mBuffer->GetTextureSourceProvider() == compositor &&
+                 mBuffer->GetLayer() == this,
+             "buffer is corrupted");
+
+  const nsIntRegion visibleRegion = GetLocalVisibleRegion().ToUnknownRegion();
+
+#ifdef MOZ_DUMP_PAINTING
+  if (gfxEnv::DumpCompositorTextures()) {
+    RefPtr<gfx::DataSourceSurface> surf = mBuffer->GetAsSurface();
+    if (surf) {
+      WriteSnapshotToDumpFile(this, surf);
+    }
+  }
+#endif
+
+  RenderWithAllMasks(
+      this, compositor, aClipRect,
+      [&](EffectChain& effectChain, const gfx::IntRect& clipRect) {
+        mBuffer->SetPaintWillResample(MayResample());
+
+        mBuffer->Composite(compositor, this, effectChain, GetEffectiveOpacity(),
+                           GetEffectiveTransform(), GetSamplingFilter(),
+                           clipRect, &visibleRegion, aGeometry);
+      });
+
+  mBuffer->BumpFlashCounter();
+
+  compositor->MakeCurrent();
+}
+
+CompositableHost* PaintedLayerComposite::GetCompositableHost() {
+  if (mBuffer && mBuffer->IsAttached()) {
+    return mBuffer.get();
+  }
+
+  return nullptr;
+}
+
+void PaintedLayerComposite::CleanupResources() {
+  if (mBuffer) {
+    mBuffer->Detach(this);
+  }
+  mBuffer = nullptr;
+}
+
+bool PaintedLayerComposite::IsOpaque() {
+  if (!mBuffer || !mBuffer->IsAttached()) {
+    return false;
+  }
+  return PaintedLayer::IsOpaque();
+}
+
+void PaintedLayerComposite::GenEffectChain(EffectChain& aEffect) {
+  aEffect.mLayerRef = this;
+  aEffect.mPrimaryEffect = mBuffer->GenEffect(GetSamplingFilter());
+}
+
+void PaintedLayerComposite::PrintInfo(std::stringstream& aStream,
+                                      const char* aPrefix) {
+  PaintedLayer::PrintInfo(aStream, aPrefix);
+  if (mBuffer && mBuffer->IsAttached()) {
+    aStream << "\n";
+    nsAutoCString pfx(aPrefix);
+    pfx += "  ";
+    mBuffer->PrintInfo(aStream, pfx.get());
+  }
+}
+
+const gfx::TiledIntRegion& PaintedLayerComposite::GetInvalidRegion() {
+  if (mBuffer) {
+    nsIntRegion region = mInvalidRegion.GetRegion();
+    mBuffer->AddAnimationInvalidation(region);
+  }
+  return mInvalidRegion;
+}
+
+}  // namespace layers
+}  // namespace mozilla