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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 GrGLStencilBuffer_DEFINED
#define GrGLStencilBuffer_DEFINED
#include "gl/GrGLInterface.h"
#include "GrStencilBuffer.h"
class GrGLStencilBuffer : public GrStencilBuffer {
public:
static const GrGLenum kUnknownInternalFormat = ~0U;
static const GrGLuint kUnknownBitCount = ~0U;
struct Format {
GrGLenum fInternalFormat;
GrGLuint fStencilBits;
GrGLuint fTotalBits;
bool fPacked;
};
struct IDDesc {
IDDesc() : fRenderbufferID(0), fLifeCycle(kCached_LifeCycle) {}
GrGLuint fRenderbufferID;
GrGpuResource::LifeCycle fLifeCycle;
};
GrGLStencilBuffer(GrGpu* gpu,
const IDDesc& idDesc,
int width, int height,
int sampleCnt,
const Format& format)
: GrStencilBuffer(gpu, idDesc.fLifeCycle, width, height, format.fStencilBits, sampleCnt)
, fFormat(format)
, fRenderbufferID(idDesc.fRenderbufferID) {
this->registerWithCache();
}
GrGLuint renderbufferID() const {
return fRenderbufferID;
}
const Format& format() const { return fFormat; }
protected:
// overrides of GrResource
void onRelease() override;
void onAbandon() override;
private:
size_t onGpuMemorySize() const override;
Format fFormat;
// may be zero for external SBs associated with external RTs
// (we don't require the client to give us the id, just tell
// us how many bits of stencil there are).
GrGLuint fRenderbufferID;
typedef GrStencilBuffer INHERITED;
};
#endif
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