Bug 1720152 - Recurse into replay for dependencies, rather than using a temp surface. r=jrmuizel,bobowen,emilio

Differential Revision: https://phabricator.services.mozilla.com/D120050

gfx/2d/2D.h

@@ -1158,10 +1158,7 @@ class DrawTarget : public external::AtomicRefCounted<DrawTarget> {
    * This is considered fallible, and replaying this without making the surface
    * available to the replay will just skip the draw.
    */
-  virtual void DrawDependentSurface(
-      uint64_t aId, const Rect& aDest,
-      const DrawSurfaceOptions& aSurfOptions = DrawSurfaceOptions(),
-      const DrawOptions& aOptions = DrawOptions()) {
+  virtual void DrawDependentSurface(uint64_t aId, const Rect& aDest) {
     MOZ_CRASH("GFX: DrawDependentSurface");
   }
 

gfx/2d/DrawTargetRecording.cpp

@@ -375,12 +375,10 @@ void DrawTargetRecording::DrawSurface(SourceSurface* aSurface,
                                              aSurfOptions, aOptions));
 }
 
-void DrawTargetRecording::DrawDependentSurface(
-    uint64_t aId, const Rect& aDest, const DrawSurfaceOptions& aSurfOptions,
-    const DrawOptions& aOptions) {
+void DrawTargetRecording::DrawDependentSurface(uint64_t aId,
+                                               const Rect& aDest) {
   mRecorder->AddDependentSurface(aId);
-  mRecorder->RecordEvent(
-      RecordedDrawDependentSurface(this, aId, aDest, aSurfOptions, aOptions));
+  mRecorder->RecordEvent(RecordedDrawDependentSurface(this, aId, aDest));
 }
 
 void DrawTargetRecording::DrawSurfaceWithShadow(

gfx/2d/DrawTargetRecording.h

@@ -62,10 +62,7 @@ class DrawTargetRecording : public DrawTarget {
       const DrawSurfaceOptions& aSurfOptions = DrawSurfaceOptions(),
       const DrawOptions& aOptions = DrawOptions()) override;
 
-  virtual void DrawDependentSurface(
-      uint64_t aId, const Rect& aDest,
-      const DrawSurfaceOptions& aSurfOptions = DrawSurfaceOptions(),
-      const DrawOptions& aOptions = DrawOptions()) override;
+  virtual void DrawDependentSurface(uint64_t aId, const Rect& aDest) override;
 
   virtual void DrawFilter(FilterNode* aNode, const Rect& aSourceRect,
                           const Point& aDestPoint,

gfx/2d/DrawTargetWrapAndRecord.cpp

@@ -493,12 +493,10 @@ void DrawTargetWrapAndRecord::DrawSurface(
                         aSurfOptions, aOptions);
 }
 
-void DrawTargetWrapAndRecord::DrawDependentSurface(
-    uint64_t aId, const Rect& aDest, const DrawSurfaceOptions& aSurfOptions,
-    const DrawOptions& aOptions) {
+void DrawTargetWrapAndRecord::DrawDependentSurface(uint64_t aId,
+                                                   const Rect& aDest) {
   mRecorder->AddDependentSurface(aId);
-  mRecorder->RecordEvent(
-      RecordedDrawDependentSurface(this, aId, aDest, aSurfOptions, aOptions));
+  mRecorder->RecordEvent(RecordedDrawDependentSurface(this, aId, aDest));
 }
 
 void DrawTargetWrapAndRecord::DrawSurfaceWithShadow(

gfx/2d/DrawTargetWrapAndRecord.h

@@ -59,10 +59,7 @@ class DrawTargetWrapAndRecord : public DrawTarget {
       const DrawSurfaceOptions& aSurfOptions = DrawSurfaceOptions(),
       const DrawOptions& aOptions = DrawOptions()) override;
 
-  virtual void DrawDependentSurface(
-      uint64_t aId, const Rect& aDest,
-      const DrawSurfaceOptions& aSurfOptions = DrawSurfaceOptions(),
-      const DrawOptions& aOptions = DrawOptions()) override;
+  virtual void DrawDependentSurface(uint64_t aId, const Rect& aDest) override;
 
   virtual void DrawFilter(FilterNode* aNode, const Rect& aSourceRect,
                           const Point& aDestPoint,

gfx/2d/InlineTranslator.cpp

@@ -111,35 +111,11 @@ already_AddRefed<DrawTarget> InlineTranslator::CreateDrawTarget(
 
 already_AddRefed<SourceSurface> InlineTranslator::LookupExternalSurface(
     uint64_t aKey) {
-  if (mExternalSurfaces) {
+  if (!mExternalSurfaces) {
+    return nullptr;
+  }
   RefPtr<SourceSurface> surface = mExternalSurfaces->Get(aKey);
-    if (surface) {
   return surface.forget();
 }
-  }
-
-  if (!mDependentSurfaces) {
-    return nullptr;
-  }
-
-  RefPtr<RecordedDependentSurface> recordedSurface =
-      mDependentSurfaces->Get(aKey);
-  if (!recordedSurface) {
-    return nullptr;
-  }
-
-  RefPtr<DrawTarget> newDT = GetReferenceDrawTarget()->CreateSimilarDrawTarget(
-      recordedSurface->mSize, SurfaceFormat::B8G8R8A8);
-
-  InlineTranslator translator(newDT, nullptr);
-  translator.SetDependentSurfaces(mDependentSurfaces);
-  if (!translator.TranslateRecording((char*)recordedSurface->mRecording.mData,
-                                     recordedSurface->mRecording.mLen)) {
-    return nullptr;
-  }
-
-  RefPtr<SourceSurface> snapshot = newDT->Snapshot();
-  return snapshot.forget();
-}
 
 }  // namespace mozilla::gfx

gfx/2d/InlineTranslator.h

@@ -13,7 +13,6 @@
 #include "mozilla/gfx/2D.h"
 #include "mozilla/gfx/Filters.h"
 #include "mozilla/gfx/RecordedEvent.h"
-#include "nsRefPtrHashtable.h"
 
 namespace mozilla {
 namespace gfx {
@@ -40,10 +39,8 @@ class InlineTranslator : public Translator {
       nsRefPtrHashtable<nsUint64HashKey, SourceSurface>* aExternalSurfaces) {
     mExternalSurfaces = aExternalSurfaces;
   }
-  void SetDependentSurfaces(
-      nsRefPtrHashtable<nsUint64HashKey, RecordedDependentSurface>*
-          aDependentSurfaces) {
-    mDependentSurfaces = aDependentSurfaces;
+  void SetReferenceDrawTargetTransform(const Matrix& aTransform) {
+    mBaseDTTransform = aTransform;
   }
 
   DrawTarget* LookupDrawTarget(ReferencePtr aRefPtr) final {
@@ -163,12 +160,14 @@ class InlineTranslator : public Translator {
     MOZ_ASSERT(mBaseDT, "mBaseDT has not been initialized.");
     return mBaseDT;
   }
+  Matrix GetReferenceDrawTargetTransform() final { return mBaseDTTransform; }
 
   void* GetFontContext() final { return mFontContext; }
   std::string GetError() { return mError; }
 
  protected:
   RefPtr<DrawTarget> mBaseDT;
+  Matrix mBaseDTTransform;
   nsRefPtrHashtable<nsPtrHashKey<void>, DrawTarget> mDrawTargets;
 
  private:
@@ -184,8 +183,6 @@ class InlineTranslator : public Translator {
   nsRefPtrHashtable<nsUint64HashKey, NativeFontResource> mNativeFontResources;
   nsRefPtrHashtable<nsUint64HashKey, SourceSurface>* mExternalSurfaces =
       nullptr;
-  nsRefPtrHashtable<nsUint64HashKey, RecordedDependentSurface>*
-      mDependentSurfaces = nullptr;
 };
 
 }  // namespace gfx

gfx/2d/RecordedEvent.cpp

@@ -13,6 +13,7 @@
 #include "Logging.h"
 #include "ScaledFontBase.h"
 #include "SFNTData.h"
+#include "InlineTranslator.h"
 
 namespace mozilla {
 namespace gfx {
@@ -170,5 +171,39 @@ already_AddRefed<DrawTarget> Translator::CreateDrawTarget(
   return newDT.forget();
 }
 
+void Translator::DrawDependentSurface(ReferencePtr aDrawTarget, uint64_t aKey,
+                                      const Rect& aRect) {
+  if (!mDependentSurfaces) {
+    return;
+  }
+
+  DrawTarget* dt = LookupDrawTarget(aDrawTarget);
+  if (!dt) {
+    return;
+  }
+
+  RefPtr<RecordedDependentSurface> recordedSurface =
+      mDependentSurfaces->Get(aKey);
+  if (!recordedSurface) {
+    return;
+  }
+
+  dt->PushClipRect(aRect);
+
+  // Construct a new translator, so we can recurse into translating this
+  // sub-recording into the same DT. Set an initial transform for the
+  // translator, so that all commands get moved into the rect we want to draw.
+  Matrix transform = dt->GetTransform();
+  transform.PreTranslate(aRect.TopLeft());
+  InlineTranslator translator(dt, nullptr);
+  translator.SetReferenceDrawTargetTransform(transform);
+
+  translator.SetDependentSurfaces(mDependentSurfaces);
+  translator.TranslateRecording((char*)recordedSurface->mRecording.mData,
+                                recordedSurface->mRecording.mLen);
+
+  dt->PopClip();
+}
+
 }  // namespace gfx
 }  // namespace mozilla

gfx/2d/RecordedEvent.h

@@ -17,6 +17,7 @@
 #include "mozilla/gfx/Point.h"
 #include "mozilla/gfx/Types.h"
 #include "mozilla/ipc/ByteBuf.h"
+#include "nsRefPtrHashtable.h"
 
 namespace mozilla {
 namespace gfx {
@@ -101,6 +102,8 @@ class Translator {
   virtual already_AddRefed<SourceSurface> LookupExternalSurface(uint64_t aKey) {
     return nullptr;
   }
+  void DrawDependentSurface(ReferencePtr aDrawTarget, uint64_t aKey,
+                            const Rect& aRect);
   virtual void AddDrawTarget(ReferencePtr aRefPtr, DrawTarget* aDT) = 0;
   virtual void RemoveDrawTarget(ReferencePtr aRefPtr) = 0;
   virtual void AddPath(ReferencePtr aRefPtr, Path* aPath) = 0;
@@ -137,7 +140,17 @@ class Translator {
                                                         const IntSize& aSize,
                                                         SurfaceFormat aFormat);
   virtual DrawTarget* GetReferenceDrawTarget() = 0;
+  virtual Matrix GetReferenceDrawTargetTransform() { return Matrix(); }
   virtual void* GetFontContext() { return nullptr; }
+
+  void SetDependentSurfaces(
+      nsRefPtrHashtable<nsUint64HashKey, RecordedDependentSurface>*
+          aDependentSurfaces) {
+    mDependentSurfaces = aDependentSurfaces;
+  }
+
+  nsRefPtrHashtable<nsUint64HashKey, RecordedDependentSurface>*
+      mDependentSurfaces = nullptr;
 };
 
 struct ColorPatternStorage {

gfx/2d/RecordedEventImpl.h

@@ -706,14 +706,10 @@ class RecordedDrawSurface : public RecordedDrawingEvent<RecordedDrawSurface> {
 class RecordedDrawDependentSurface
     : public RecordedDrawingEvent<RecordedDrawDependentSurface> {
  public:
-  RecordedDrawDependentSurface(DrawTarget* aDT, uint64_t aId, const Rect& aDest,
-                               const DrawSurfaceOptions& aDSOptions,
-                               const DrawOptions& aOptions)
+  RecordedDrawDependentSurface(DrawTarget* aDT, uint64_t aId, const Rect& aDest)
       : RecordedDrawingEvent(DRAWDEPENDENTSURFACE, aDT),
         mId(aId),
-        mDest(aDest),
-        mDSOptions(aDSOptions),
-        mOptions(aOptions) {}
+        mDest(aDest) {}
 
   bool PlayEvent(Translator* aTranslator) const override;
 
@@ -731,8 +727,6 @@ class RecordedDrawDependentSurface
 
   uint64_t mId;
   Rect mDest;
-  DrawSurfaceOptions mDSOptions;
-  DrawOptions mOptions;
 };
 
 class RecordedDrawSurfaceWithShadow
@@ -2780,7 +2774,16 @@ inline bool RecordedSetTransform::PlayEvent(Translator* aTranslator) const {
     return false;
   }
 
+  // If we're drawing to the reference DT, then we need to manually apply
+  // its initial transform, otherwise we'll just clobber it with only the
+  // the transform that was visible to the code doing the recording.
+  if (dt == aTranslator->GetReferenceDrawTarget()) {
+    dt->SetTransform(mTransform *
+                     aTranslator->GetReferenceDrawTargetTransform());
+  } else {
     dt->SetTransform(mTransform);
+  }
+
   return true;
 }
 
@@ -2846,20 +2849,7 @@ inline void RecordedDrawSurface::OutputSimpleEventInfo(
 
 inline bool RecordedDrawDependentSurface::PlayEvent(
     Translator* aTranslator) const {
-  DrawTarget* dt = aTranslator->LookupDrawTarget(mDT);
-  if (!dt) {
-    return false;
-  }
-
-  // We still return true even if this fails, since dependent surfaces are
-  // used for cross-origin iframe drawing and can fail.
-  RefPtr<SourceSurface> surface = aTranslator->LookupExternalSurface(mId);
-  if (!surface) {
-    return true;
-  }
-
-  dt->DrawSurface(surface, mDest, Rect(Point(), Size(surface->GetSize())),
-                  mDSOptions, mOptions);
+  aTranslator->DrawDependentSurface(mDT, mId, mDest);
   return true;
 }
 
@@ -2868,8 +2858,6 @@ void RecordedDrawDependentSurface::Record(S& aStream) const {
   RecordedDrawingEvent::Record(aStream);
   WriteElement(aStream, mId);
   WriteElement(aStream, mDest);
-  WriteElement(aStream, mDSOptions);
-  WriteElement(aStream, mOptions);
 }
 
 template <class S>
@@ -2877,8 +2865,6 @@ RecordedDrawDependentSurface::RecordedDrawDependentSurface(S& aStream)
     : RecordedDrawingEvent(DRAWDEPENDENTSURFACE, aStream) {
   ReadElement(aStream, mId);
   ReadElement(aStream, mDest);
-  ReadDrawSurfaceOptions(aStream, mDSOptions);
-  ReadDrawOptions(aStream, mOptions);
 }
 
 inline void RecordedDrawDependentSurface::OutputSimpleEventInfo(

layout/generic/nsSubDocumentFrame.cpp

@@ -1372,9 +1372,19 @@ void nsDisplayRemote::Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) {
     return;
   }
 
+  // Rendering the inner document will apply a scale to account for its
+  // app units per dev pixel ratio. We want to apply the inverse scaling
+  // using our app units per dev pixel ratio, so that no actual scaling
+  // will be applied if they match. For in-process rendering,
+  // nsSubDocumentFrame creates an nsDisplayZoom item if the app units
+  // per dev pixel ratio changes.
   int32_t appUnitsPerDevPixel = pc->AppUnitsPerDevPixel();
+  gfxFloat scale = gfxFloat(AppUnitsPerCSSPixel()) / appUnitsPerDevPixel;
+  gfxContextMatrixAutoSaveRestore saveMatrix(aCtx);
+  aCtx->Multiply(gfxMatrix::Scaling(scale, scale));
+
   Rect destRect =
-      NSRectToSnappedRect(GetContentRect(), appUnitsPerDevPixel, *target);
+      NSRectToSnappedRect(GetContentRect(), AppUnitsPerCSSPixel(), *target);
   target->DrawDependentSurface(mPaintData.mTabId, destRect);
 }
 

layout/printing/PrintTranslator.cpp

@@ -82,26 +82,5 @@ already_AddRefed<DrawTarget> PrintTranslator::CreateDrawTarget(
   return drawTarget.forget();
 }
 
-already_AddRefed<SourceSurface> PrintTranslator::LookupExternalSurface(
-    uint64_t aKey) {
-  RefPtr<RecordedDependentSurface> surface = mDependentSurfaces.Get(aKey);
-  if (!surface) {
-    return nullptr;
-  }
-
-  RefPtr<DrawTarget> newDT = GetReferenceDrawTarget()->CreateSimilarDrawTarget(
-      surface->mSize, SurfaceFormat::B8G8R8A8);
-
-  InlineTranslator translator(newDT, nullptr);
-  translator.SetDependentSurfaces(&mDependentSurfaces);
-  if (!translator.TranslateRecording((char*)surface->mRecording.mData,
-                                     surface->mRecording.mLen)) {
-    return nullptr;
-  }
-
-  RefPtr<SourceSurface> snapshot = newDT->Snapshot();
-  return snapshot.forget();
-}
-
 }  // namespace layout
 }  // namespace mozilla

layout/printing/PrintTranslator.h

@@ -13,7 +13,6 @@
 #include "mozilla/gfx/2D.h"
 #include "mozilla/gfx/Filters.h"
 #include "mozilla/gfx/RecordedEvent.h"
-#include "nsRefPtrHashtable.h"
 
 class nsDeviceContext;
 
@@ -38,12 +37,6 @@ class PrintTranslator final : public Translator {
 
   bool TranslateRecording(PRFileDescStream& aRecording);
 
-  void SetDependentSurfaces(
-      nsRefPtrHashtable<nsUint64HashKey, RecordedDependentSurface>&&
-          aDependentSurfaces) {
-    mDependentSurfaces = std::move(aDependentSurfaces);
-  }
-
   DrawTarget* LookupDrawTarget(ReferencePtr aRefPtr) final {
     DrawTarget* result = mDrawTargets.GetWeak(aRefPtr);
     MOZ_ASSERT(result);
@@ -91,8 +84,6 @@ class PrintTranslator final : public Translator {
     return result;
   }
 
-  already_AddRefed<SourceSurface> LookupExternalSurface(uint64_t aKey) final;
-
   void AddDrawTarget(ReferencePtr aRefPtr, DrawTarget* aDT) final {
     mDrawTargets.InsertOrUpdate(aRefPtr, RefPtr{aDT});
   }
@@ -171,8 +162,6 @@ class PrintTranslator final : public Translator {
   nsRefPtrHashtable<nsPtrHashKey<void>, ScaledFont> mScaledFonts;
   nsRefPtrHashtable<nsPtrHashKey<void>, UnscaledFont> mUnscaledFonts;
   nsRefPtrHashtable<nsUint64HashKey, NativeFontResource> mNativeFontResources;
-  nsRefPtrHashtable<nsUint64HashKey, RecordedDependentSurface>
-      mDependentSurfaces;
 };
 
 }  // namespace layout

layout/printing/ipc/RemotePrintJobParent.cpp

@@ -162,11 +162,13 @@ nsresult RemotePrintJobParent::PrintPage(
     return rv;
   }
   if (aFragments) {
-    mPrintTranslator->SetDependentSurfaces(std::move(*aFragments));
+    mPrintTranslator->SetDependentSurfaces(aFragments);
   }
   if (!mPrintTranslator->TranslateRecording(aRecording)) {
+    mPrintTranslator->SetDependentSurfaces(nullptr);
     return NS_ERROR_FAILURE;
   }
+  mPrintTranslator->SetDependentSurfaces(nullptr);
 
   rv = mPrintDeviceContext->EndPage();
   if (NS_WARN_IF(NS_FAILED(rv))) {

testing/web-platform/meta/html/browsers/windows/iframe-cross-origin-scaled-print.sub.html.ini

@@ -0,0 +1,3 @@
+[iframe-cross-origin-scaled-print.sub.html]
+  expected:
+    if fission and (os == "linux"): FAIL

testing/web-platform/tests/html/browsers/windows/iframe-cross-origin-scaled-print.sub.html

@@ -0,0 +1,17 @@
+<!doctype html>
+<link rel=match href="iframe-nested-scaled-print-ref.html">
+<style>
+  body { margin: 0 }
+  div {
+    transform-origin: top left;
+    transform: scale(2);
+    overflow: hidden;
+  }
+  iframe {
+    width: 100px;
+    height: 50px;
+  }
+</style>
+<div>
+<iframe frameborder=0 scrolling=no src="//{{hosts[alt][www]}}:{{ports[http][0]}}{{location[path]}}/../resources/iframe-nested-printing-pass.html"></iframe>
+</div>

testing/web-platform/tests/html/browsers/windows/iframe-nested-scaled-print-ref.html

@@ -0,0 +1,15 @@
+<!doctype html>
+<style>
+  body { margin: 0 }
+  div {
+    transform-origin: top left;
+    transform: scale(2);
+  }
+  iframe {
+    width: 100px;
+    height: 50px;
+  }
+</style>
+<div>
+<iframe frameborder=0 scrolling=no src="resources/iframe-nested-printing-pass.html"></iframe>
+</div>

testing/web-platform/tests/html/browsers/windows/resources/iframe-nested-printing-pass.html

@@ -0,0 +1,9 @@
+<!doctype html>
+<style>
+body {
+  margin: calc(0.5px * 2 / 3);
+}
+</style>
+<body>
+PASS
+</body>