skia2/include/utils/SkBoundaryPatch.h
mtklein 2766c00fc0 remove SkInstCnt
It's been outclassed by Valgrind and leak sanitizer,
and it seems to be causing problems for external folks building Skia.

I'm not sure why our own builds seem unaffected.

Latest thread:
https://groups.google.com/forum/#!topic/skia-discuss/oj9FsQwwSF0

BUG=skia:

Review URL: https://codereview.chromium.org/1217573002
2015-06-26 11:45:03 -07:00

67 lines
1.4 KiB
C++

/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkBoundaryPatch_DEFINED
#define SkBoundaryPatch_DEFINED
#include "SkPoint.h"
#include "SkRefCnt.h"
class SkBoundary : public SkRefCnt {
public:
// These must be 0, 1, 2, 3 for efficiency in the subclass implementations
enum Edge {
kTop = 0,
kRight = 1,
kBottom = 2,
kLeft = 3
};
// Edge index goes clockwise around the boundary, beginning at the "top"
virtual SkPoint eval(Edge, SkScalar unitInterval) = 0;
private:
typedef SkRefCnt INHERITED;
};
class SkBoundaryPatch {
public:
SkBoundaryPatch();
~SkBoundaryPatch();
SkBoundary* getBoundary() const { return fBoundary; }
SkBoundary* setBoundary(SkBoundary*);
SkPoint eval(SkScalar unitU, SkScalar unitV);
bool evalPatch(SkPoint verts[], int rows, int cols);
private:
SkBoundary* fBoundary;
};
////////////////////////////////////////////////////////////////////////
class SkLineBoundary : public SkBoundary {
public:
SkPoint fPts[4];
// override
virtual SkPoint eval(Edge, SkScalar);
};
class SkCubicBoundary : public SkBoundary {
public:
// the caller sets the first 12 entries. The 13th is used by the impl.
SkPoint fPts[13];
// override
virtual SkPoint eval(Edge, SkScalar);
};
#endif