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/*
* 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 GrPathRendererChain_DEFINED
#define GrPathRendererChain_DEFINED
#include "GrDrawTarget.h"
#include "GrRefCnt.h"
#include "SkTArray.h"
class GrContext;
class SkPath;
class SkStroke;
class GrPathRenderer;
/**
* Keeps track of an ordered list of path renderers. When a path needs to be
* drawn this list is scanned to find the most preferred renderer. To add your
* path renderer to the list implement the GrPathRenderer::AddPathRenderers
* function.
*/
class GrPathRendererChain : public SkRefCnt {
public:
SK_DECLARE_INST_COUNT(GrPathRendererChain)
enum UsageFlags {
kNone_UsageFlag = 0,
kNonAAOnly_UsageFlag = 1,
};
GrPathRendererChain(GrContext* context, UsageFlags flags);
~GrPathRendererChain();
// takes a ref and unrefs in destructor
GrPathRenderer* addPathRenderer(GrPathRenderer* pr);
GrPathRenderer* getPathRenderer(const SkPath& path,
const SkStroke& stroke,
const GrDrawTarget* target,
bool antiAlias);
private:
GrPathRendererChain();
void init();
enum {
kPreAllocCount = 8,
};
bool fInit;
GrContext* fOwner;
UsageFlags fFlags;
SkSTArray<kPreAllocCount, GrPathRenderer*, true> fChain;
typedef SkRefCnt INHERITED;
};
GR_MAKE_BITFIELD_OPS(GrPathRendererChain::UsageFlags)
#endif
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