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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 GrStencilAttachment_DEFINED
#define GrStencilAttachment_DEFINED
#include "GrGpuResource.h"
#include "SkClipStack.h"
class GrRenderTarget;
class GrResourceKey;
class GrStencilAttachment : public GrGpuResource {
public:
~GrStencilAttachment() override {
// TODO: allow SB to be purged and detach itself from rts
}
int width() const { return fWidth; }
int height() const { return fHeight; }
int bits() const { return fBits; }
int numSamples() const { return fSampleCnt; }
bool isDirty() const { return fIsDirty; }
void cleared() { fIsDirty = false; }
// We create a unique stencil buffer at each width, height and sampleCnt and share it for
// all render targets that require a stencil with those params.
static void ComputeSharedStencilAttachmentKey(int width, int height, int sampleCnt,
GrUniqueKey* key);
protected:
GrStencilAttachment(GrGpu* gpu, int width, int height, int bits, int sampleCnt)
: INHERITED(gpu)
, fWidth(width)
, fHeight(height)
, fBits(bits)
, fSampleCnt(sampleCnt)
, fIsDirty(true) {
}
private:
const char* getResourceType() const override { return "Stencil"; }
int fWidth;
int fHeight;
int fBits;
int fSampleCnt;
bool fIsDirty;
typedef GrGpuResource INHERITED;
};
#endif
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