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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrCCClipPath_DEFINED
#define GrCCClipPath_DEFINED
#include "GrTextureProxy.h"
#include "SkPath.h"
struct GrCCPerFlushResourceSpecs;
class GrCCAtlas;
class GrCCPerFlushResources;
class GrOnFlushResourceProvider;
class GrProxyProvider;
/**
* These are keyed by SkPath generation ID, and store which device-space paths are accessed and
* where by clip FPs in a given opList. A single GrCCClipPath can be referenced by multiple FPs. At
* flush time their coverage count masks are packed into atlas(es) alongside normal DrawPathOps.
*/
class GrCCClipPath {
public:
GrCCClipPath() = default;
GrCCClipPath(const GrCCClipPath&) = delete;
~GrCCClipPath() {
// Ensure no clip FPs exist with a dangling pointer back into this class.
SkASSERT(!fAtlasLazyProxy || fAtlasLazyProxy->isUnique_debugOnly());
// Ensure no lazy proxy callbacks exist with a dangling pointer back into this class.
SkASSERT(fHasAtlasTransform);
}
bool isInitialized() const { return fAtlasLazyProxy != nullptr; }
void init(const SkPath& deviceSpacePath, const SkIRect& accessRect, int rtWidth, int rtHeight,
const GrCaps&);
void addAccess(const SkIRect& accessRect) {
SkASSERT(this->isInitialized());
fAccessRect.join(accessRect);
}
GrTextureProxy* atlasLazyProxy() const {
SkASSERT(this->isInitialized());
return fAtlasLazyProxy.get();
}
const SkPath& deviceSpacePath() const {
SkASSERT(this->isInitialized());
return fDeviceSpacePath;
}
const SkIRect& pathDevIBounds() const {
SkASSERT(this->isInitialized());
return fPathDevIBounds;
}
void accountForOwnPath(GrCCPerFlushResourceSpecs*) const;
void renderPathInAtlas(GrCCPerFlushResources*, GrOnFlushResourceProvider*);
const SkVector& atlasScale() const { SkASSERT(fHasAtlasTransform); return fAtlasScale; }
const SkVector& atlasTranslate() const { SkASSERT(fHasAtlasTransform); return fAtlasTranslate; }
private:
sk_sp<GrTextureProxy> fAtlasLazyProxy;
SkPath fDeviceSpacePath;
SkIRect fPathDevIBounds;
SkIRect fAccessRect;
const GrCCAtlas* fAtlas = nullptr;
SkIVector fDevToAtlasOffset; // Translation from device space to location in atlas.
SkDEBUGCODE(bool fHasAtlas = false);
SkVector fAtlasScale;
SkVector fAtlasTranslate;
SkDEBUGCODE(bool fHasAtlasTransform = false);
};
#endif
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