SvgOpacityAndFilterLayerMergePass Struct Reference

Public Types
typedef Pattern< Is< SaveLayer >, Is< Save >, Is< ClipRect >, Is< SaveLayer >, Is< Restore >, Is< Restore >, 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 216 of file SkRecordOpts.cpp.

Member Typedef Documentation

Match

typedef Pattern<Is<SaveLayer>, Is<Save>, Is<ClipRect>, Is<SaveLayer>, Is<Restore>, Is<Restore>, Is<Restore> > SvgOpacityAndFilterLayerMergePass::Match

Definition at line 218 of file SkRecordOpts.cpp.

Member Function Documentation

KillSaveLayerAndRestore()

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

inlinestatic

Definition at line 255 of file SkRecordOpts.cpp.

                                                                              {
        record->replace<NoOp>(saveLayerIndex);     // SaveLayer
        record->replace<NoOp>(saveLayerIndex + 6); // Restore
        return true;
    }

onMatch()

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

inline

Definition at line 220 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() ||
            !match->fourth<SaveLayer>()->filters.empty()) {
            // Our optimizations don't handle the filter list correctly - don't bother trying
            return false;
        }
 
        SkPaint* opacityPaint = match->first<SaveLayer>()->paint;
        if (nullptr == opacityPaint) {
            // There wasn't really any point to this SaveLayer at all.
            return KillSaveLayerAndRestore(record, begin);
        }
 
        // This layer typically contains a filter, but this should work for layers with for other
        // purposes too.
        SkPaint* filterLayerPaint = match->fourth<SaveLayer>()->paint;
        if (filterLayerPaint == nullptr) {
            // We can just give the inner SaveLayer the paint of the outer SaveLayer.
            // TODO(mtklein): figure out how to do this clearly
            return false;
        }
 
        if (!fold_opacity_layer_color_to_paint(opacityPaint, true /*isSaveLayer*/,
                                               filterLayerPaint)) {
            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