Rename GrAccelData to SkLayerInfo and move it to src/core

src/gpu/GrPictureUtils.h

-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrPictureUtils_DEFINED
-#define GrPictureUtils_DEFINED
-
-#include "SkPicture.h"
-#include "SkTArray.h"
-
-// This class encapsulates the GPU-backend-specific acceleration data
-// for a single SkPicture
-class GrAccelData : public SkPicture::AccelData {
-public:
-    // Information about a given saveLayer in an SkPicture
-    class SaveLayerInfo {
-    public:
-        SaveLayerInfo() : fPicture(NULL), fPaint(NULL) {}
-        ~SaveLayerInfo() { SkSafeUnref(fPicture); SkDELETE(fPaint); }
-
-        // The picture owning the layer. If the owning picture is the top-most
-        // one (i.e., the picture for which this GrAccelData was created) then
-        // this pointer is NULL. If it is a nested picture then the pointer
-        // is non-NULL and owns a ref on the picture.
-        const SkPicture* fPicture;
-        // The device space bounds of this layer.
-        SkRect fBounds;
-        // The pre-matrix begins as the identity and accumulates the transforms
-        // of the containing SkPictures (if any). This matrix state has to be
-        // part of the initial matrix during replay so that it will be 
-        // preserved across setMatrix calls.
-        SkMatrix fPreMat;
-        // The matrix state (in the leaf picture) in which this layer's draws 
-        // must occur. It will/can be overridden by setMatrix calls in the
-        // layer itself. It does not include the translation needed to map the 
-        // layer's top-left point to the origin (which must be part of the
-        // initial matrix).
-        SkMatrix fLocalMat;
-        // The paint to use on restore. Can be NULL since it is optional.
-        const SkPaint* fPaint;
-        // The ID of this saveLayer in the picture. 0 is an invalid ID.
-        size_t  fSaveLayerOpID;
-        // The ID of the matching restore in the picture. 0 is an invalid ID.
-        size_t  fRestoreOpID;
-        // True if this saveLayer has at least one other saveLayer nested within it.
-        // False otherwise.
-        bool    fHasNestedLayers;
-        // True if this saveLayer is nested within another. False otherwise.
-        bool    fIsNested;
-    };
-
-    GrAccelData(Key key) : INHERITED(key) { }
-
-    virtual ~GrAccelData() { }
-
-    SaveLayerInfo& addSaveLayerInfo() { return fSaveLayerInfo.push_back(); }
-
-    int numSaveLayers() const { return fSaveLayerInfo.count(); }
-
-    const SaveLayerInfo& saveLayerInfo(int index) const {
-        SkASSERT(index < fSaveLayerInfo.count());
-
-        return fSaveLayerInfo[index];
-    }
-
-    // We may, in the future, need to pass in the GPUDevice in order to
-    // incorporate the clip and matrix state into the key
-    static SkPicture::AccelData::Key ComputeAccelDataKey();
-
-private:
-    SkTArray<SaveLayerInfo, true> fSaveLayerInfo;
-
-    typedef SkPicture::AccelData INHERITED;
-};
-
-#endif // GrPictureUtils_DEFINED