Move determiniation of strokerect rects internal

src/gpu/batches/GrRectBatchFactory.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrRectBatchFactory.h"
 
 #include "GrAAStrokeRectBatch.h"
 
 #include "SkStrokeRec.h"
 
 namespace GrRectBatchFactory {
 
-GrDrawBatch* CreateAAStroke(GrColor color,
-                            const SkMatrix& viewMatrix,
-                            const SkRect& rect,
-                            const SkRect& devRect,
-                            const SkStrokeRec& stroke) {
-    SkVector devStrokeSize;
-    SkScalar width = stroke.getWidth();
-    if (width > 0) {
-        devStrokeSize.set(width, width);
-        viewMatrix.mapVectors(&devStrokeSize, 1);
-        devStrokeSize.setAbs(devStrokeSize);
-    } else {
-        devStrokeSize.set(SK_Scalar1, SK_Scalar1);
-    }
-
-    const SkScalar dx = devStrokeSize.fX;
-    const SkScalar dy = devStrokeSize.fY;
-    const SkScalar rx = SkScalarMul(dx, SK_ScalarHalf);
-    const SkScalar ry = SkScalarMul(dy, SK_ScalarHalf);
-
-    SkRect devOutside(devRect);
-    devOutside.outset(rx, ry);
-
-    bool miterStroke = true;
-    // For hairlines, make bevel and round joins appear the same as mitered ones.
-    // small miter limit means right angles show bevel...
-    if ((width > 0) && (stroke.getJoin() != SkPaint::kMiter_Join ||
-                        stroke.getMiter() < SK_ScalarSqrt2)) {
-        miterStroke = false;
-    }
-
-    SkRect devInside(devRect);
-    devInside.inset(rx, ry);
-
-    // If we have a degenerate stroking rect(ie the stroke is larger than inner rect) then we
-    // make a degenerate inside rect to avoid double hitting.  We will also jam all of the points
-    // together when we render these rects.
-    SkScalar spare;
-    {
-        SkScalar w = devRect.width() - dx;
-        SkScalar h = devRect.height() - dy;
-        spare = SkTMin(w, h);
-    }
-
-    bool degenerate = spare <= 0;
-    if (degenerate) {
-        devInside.fLeft = devInside.fRight = devRect.centerX();
-        devInside.fTop = devInside.fBottom = devRect.centerY();
-    }
-
-    SkRect devOutsideAssist(devRect);
-
-    // For bevel-stroke, use 2 SkRect instances(devOutside and devOutsideAssist)
-    // to draw the outer of the rect. Because there are 8 vertices on the outer
-    // edge, while vertex number of inner edge is 4, the same as miter-stroke.
-    if (!miterStroke) {
-        devOutside.inset(0, ry);
-        devOutsideAssist.outset(0, ry);
-    }
-
-    return GrAAStrokeRectBatch::Create(color, viewMatrix, devOutside, devOutsideAssist, devInside,
-                                       miterStroke, degenerate);
-}
-
 GrDrawBatch* CreateAAFillNestedRects(GrColor color,
                                      const SkMatrix& viewMatrix,
                                      const SkRect rects[2]) {
     SkASSERT(viewMatrix.rectStaysRect());
     SkASSERT(!rects[0].isEmpty() && !rects[1].isEmpty());
 
     SkRect devOutside, devInside;
     viewMatrix.mapRect(&devOutside, rects[0]);
     viewMatrix.mapRect(&devInside, rects[1]);
 
     return GrAAStrokeRectBatch::Create(color, viewMatrix, devOutside, devOutside, devInside, true,
                                        devInside.isEmpty());
 }
 
 };