SaveLayerDrawRestoreNooper Struct Reference

Public Types
typedef Pattern< Is< SaveLayer >, IsSingleDraw, Is< Restore > >	Match

Public Member Functions
bool	onMatch (SkRecord *record, Match *match, int begin, int end)

Static Public Member Functions
static bool	KillSaveLayerAndRestore (SkRecord *record, int saveLayerIndex)

Detailed Description

Definition at line 156 of file SkRecordOpts.cpp.

Member Typedef Documentation

Match

typedef Pattern<Is<SaveLayer>, IsSingleDraw, Is<Restore> > SaveLayerDrawRestoreNooper::Match

Definition at line 160 of file SkRecordOpts.cpp.

Member Function Documentation

KillSaveLayerAndRestore()

static bool SaveLayerDrawRestoreNooper::KillSaveLayerAndRestore ( SkRecord *  record, int  saveLayerIndex  )

inlinestatic

Definition at line 195 of file SkRecordOpts.cpp.

                                                                              {
        record->replace<NoOp>(saveLayerIndex);    // SaveLayer
        record->replace<NoOp>(saveLayerIndex+2);  // Restore
        return true;
    }

onMatch()

bool SaveLayerDrawRestoreNooper::onMatch ( SkRecord *  record, Match *  match, int  begin, int  end  )

inline

Definition at line 162 of file SkRecordOpts.cpp.

                                                                     {
        if (match->first<SaveLayer>()->backdrop) {
            // can't throw away the layer if we have a backdrop
            return false;
        }
 
        if (!match->first<SaveLayer>()->filters.empty()) {
            // Our optimizations don't handle the filter list correctly - don't bother trying
            return false;
        }
 
        // A SaveLayer's bounds field is just a hint, so we should be free to ignore it.
        SkPaint* layerPaint = match->first<SaveLayer>()->paint;
        SkPaint* drawPaint = match->second<SkPaint>();
 
        if (nullptr == layerPaint && effectively_srcover(drawPaint)) {
            // There wasn't really any point to this SaveLayer at all.
            return KillSaveLayerAndRestore(record, begin);
        }
 
        if (drawPaint == nullptr) {
            // We can just give the draw the SaveLayer's paint.
            // TODO(mtklein): figure out how to do this clearly
            return false;
        }
 
        if (!fold_opacity_layer_color_to_paint(layerPaint, false /*isSaveLayer*/, drawPaint)) {
            return false;
        }
 
        return KillSaveLayerAndRestore(record, begin);
    }

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The documentation for this struct was generated from the following file:

• third_party/skia/src/core/SkRecordOpts.cpp