Bug 1410359 - Remove unused css filter codes. r=kats

Some css filter codes only used in layers-full mode. Since layers-full
already removed, we can also remove those unused codes.

MozReview-Commit-ID: 8YrfOfuXHNt

--HG--
extra : rebase_source : e9475d9100fbc2e5b301833f31fde1db458117aa

gfx/layers/Layers.h

@@ -2328,12 +2328,6 @@ class ContainerLayer : public Layer {
     return mEventRegionsOverride;
   }
 
-  void SetFilterChain(nsTArray<CSSFilter>&& aFilterChain) {
-    mFilterChain = aFilterChain;
-  }
-
-  nsTArray<CSSFilter>& GetFilterChain() { return mFilterChain; }
-
   // If |aRect| is null, the entire layer should be considered invalid for
   // compositing.
   virtual void SetInvalidCompositeRect(const gfx::IntRect* aRect) {}
@@ -2424,7 +2418,6 @@ class ContainerLayer : public Layer {
   // the intermediate surface.
   bool mChildrenChanged;
   EventRegionsOverride mEventRegionsOverride;
-  nsTArray<CSSFilter> mFilterChain;
 };
 
 /**

gfx/layers/LayersTypes.cpp

@@ -5,52 +5,9 @@
 
 #include "LayersTypes.h"
 
-#include "nsStyleStruct.h"              // for nsStyleFilter
-
 namespace mozilla {
 namespace layers {
 
-CSSFilter ToCSSFilter(const nsStyleFilter& filter)
-{
-  switch (filter.GetType()) {
-    case NS_STYLE_FILTER_BRIGHTNESS: {
-      return {
-          CSSFilterType::BRIGHTNESS,
-          filter.GetFilterParameter().GetFactorOrPercentValue(),
-      };
-    }
-    case NS_STYLE_FILTER_CONTRAST: {
-      return {
-          CSSFilterType::CONTRAST,
-          filter.GetFilterParameter().GetFactorOrPercentValue(),
-      };
-    }
-    case NS_STYLE_FILTER_GRAYSCALE: {
-      return {
-          CSSFilterType::GRAYSCALE,
-          filter.GetFilterParameter().GetFactorOrPercentValue(),
-      };
-    }
-    case NS_STYLE_FILTER_INVERT: {
-      return {
-          CSSFilterType::INVERT,
-          filter.GetFilterParameter().GetFactorOrPercentValue(),
-      };
-    }
-    case NS_STYLE_FILTER_SEPIA: {
-      return {
-          CSSFilterType::SEPIA,
-          filter.GetFilterParameter().GetFactorOrPercentValue(),
-      };
-    }
-    // All other filter types should be prevented by the code which converts
-    // display items into layers.
-    default:
-      MOZ_ASSERT_UNREACHABLE("Tried to convert an unsupported filter");
-      return { CSSFilterType::CONTRAST, 0 };
-  }
-}
-
 EventRegions::EventRegions(const nsIntRegion& aHitRegion,
                            const nsIntRegion& aMaybeHitRegion,
                            const nsIntRegion& aDispatchToContentRegion,

gfx/layers/LayersTypes.h

@@ -38,8 +38,6 @@ namespace android {
 class MOZ_EXPORT GraphicBuffer;
 } // namespace android
 
-struct nsStyleFilter;
-
 namespace mozilla {
 namespace layers {
 
@@ -352,25 +350,6 @@ MOZ_DEFINE_ENUM_CLASS_WITH_BASE(ScrollDirection, uint32_t, (
   HORIZONTAL
 ));
 
-enum class CSSFilterType : int8_t {
-  BLUR,
-  BRIGHTNESS,
-  CONTRAST,
-  GRAYSCALE,
-  HUE_ROTATE,
-  INVERT,
-  OPACITY,
-  SATURATE,
-  SEPIA,
-};
-
-struct CSSFilter {
-  CSSFilterType type;
-  float argument;
-};
-
-CSSFilter ToCSSFilter(const nsStyleFilter& filter);
-
 } // namespace layers
 } // namespace mozilla
 

gfx/webrender_bindings/WebRenderTypes.h

@@ -12,7 +12,6 @@
 #include "mozilla/gfx/Matrix.h"
 #include "mozilla/gfx/Types.h"
 #include "mozilla/gfx/Tools.h"
-#include "mozilla/layers/LayersTypes.h"
 #include "mozilla/PodOperations.h"
 #include "mozilla/Range.h"
 #include "mozilla/Variant.h"
@@ -672,38 +671,31 @@ struct BuiltDisplayList {
   wr::BuiltDisplayListDescriptor dl_desc;
 };
 
-static inline wr::WrFilterOpType ToWrFilterOpType(const layers::CSSFilterType type) {
+static inline wr::WrFilterOpType ToWrFilterOpType(uint32_t type) {
   switch (type) {
-    case layers::CSSFilterType::BLUR:
+    case NS_STYLE_FILTER_BLUR:
       return wr::WrFilterOpType::Blur;
-    case layers::CSSFilterType::BRIGHTNESS:
+    case NS_STYLE_FILTER_BRIGHTNESS:
       return wr::WrFilterOpType::Brightness;
-    case layers::CSSFilterType::CONTRAST:
+    case NS_STYLE_FILTER_CONTRAST:
       return wr::WrFilterOpType::Contrast;
-    case layers::CSSFilterType::GRAYSCALE:
+    case NS_STYLE_FILTER_GRAYSCALE:
       return wr::WrFilterOpType::Grayscale;
-    case layers::CSSFilterType::HUE_ROTATE:
+    case NS_STYLE_FILTER_HUE_ROTATE:
       return wr::WrFilterOpType::HueRotate;
-    case layers::CSSFilterType::INVERT:
+    case NS_STYLE_FILTER_INVERT:
       return wr::WrFilterOpType::Invert;
-    case layers::CSSFilterType::OPACITY:
+    case NS_STYLE_FILTER_OPACITY:
       return wr::WrFilterOpType::Opacity;
-    case layers::CSSFilterType::SATURATE:
+    case NS_STYLE_FILTER_SATURATE:
       return wr::WrFilterOpType::Saturate;
-    case layers::CSSFilterType::SEPIA:
+    case NS_STYLE_FILTER_SEPIA:
       return wr::WrFilterOpType::Sepia;
   }
   MOZ_ASSERT_UNREACHABLE("Tried to convert unknown filter type.");
   return wr::WrFilterOpType::Grayscale;
 }
 
-static inline wr::WrFilterOp ToWrFilterOp(const layers::CSSFilter& filter) {
-  return {
-    ToWrFilterOpType(filter.type),
-    filter.argument,
-  };
-}
-
 // Corresponds to an "internal" webrender clip id. That is, a
 // ClipId::Clip(x,pipeline_id) maps to a WrClipId{x}. We use a struct wrapper
 // instead of a typedef so that this is a distinct type from FrameMetrics::ViewID

layout/painting/nsDisplayList.cpp

@@ -9502,17 +9502,6 @@ nsDisplayFilter::BuildLayer(nsDisplayListBuilder* aBuilder,
   RefPtr<ContainerLayer> container = aManager->GetLayerBuilder()->
     BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
                            newContainerParameters, nullptr);
-  LayerState state = this->GetLayerState(aBuilder, aManager, newContainerParameters);
-  if (container && state != LAYER_SVG_EFFECTS) {
-    const nsTArray<nsStyleFilter>& filters = mFrame->StyleEffects()->mFilters;
-    nsTArray<layers::CSSFilter> cssFilters = nsTArray<layers::CSSFilter>(filters.Length());
-    for (const nsStyleFilter& filter : filters) {
-      cssFilters.AppendElement(ToCSSFilter(filter));
-    }
-
-    container->SetFilterChain(Move(cssFilters));
-  }
-
   return container.forget();
 }
 
@@ -9594,21 +9583,25 @@ nsDisplayFilter::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuild
   // Due to differences in the way that WebRender filters operate
   // only the brightness and contrast filters use that path. We
   // can gradually enable more filters as WebRender bugs are fixed.
-  for (const nsStyleFilter& filter : mFrame->StyleEffects()->mFilters) {
-    if (filter.GetType() != NS_STYLE_FILTER_BRIGHTNESS &&
-        filter.GetType() != NS_STYLE_FILTER_CONTRAST &&
-        filter.GetType() != NS_STYLE_FILTER_GRAYSCALE &&
-        filter.GetType() != NS_STYLE_FILTER_INVERT &&
-        filter.GetType() != NS_STYLE_FILTER_SEPIA) {
-      return false;
-    }
-  }
-
   nsTArray<mozilla::wr::WrFilterOp> wrFilters;
   const nsTArray<nsStyleFilter>& filters = mFrame->StyleEffects()->mFilters;
-  nsTArray<layers::CSSFilter> cssFilters = nsTArray<layers::CSSFilter>(filters.Length());
   for (const nsStyleFilter& filter : filters) {
-    wrFilters.AppendElement(wr::ToWrFilterOp(ToCSSFilter(filter)));
+    switch (filter.GetType()) {
+      case NS_STYLE_FILTER_BRIGHTNESS:
+      case NS_STYLE_FILTER_CONTRAST:
+      case NS_STYLE_FILTER_GRAYSCALE:
+      case NS_STYLE_FILTER_INVERT:
+      case NS_STYLE_FILTER_SEPIA: {
+        mozilla::wr::WrFilterOp filterOp = {
+          wr::ToWrFilterOpType(filter.GetType()),
+          filter.GetFilterParameter().GetFactorOrPercentValue(),
+        };
+        wrFilters.AppendElement(filterOp);
+        break;
+      }
+      default:
+        return false;
+    }
   }
 
   StackingContextHelper sc(aSc, aBuilder, wrFilters);