src/gpu/gl/GrGLAttachment.h

/*
 * 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 GrGLMtlAttachment_DEFINED
#define GrGLMtlAttachment_DEFINED

#include "include/gpu/gl/GrGLInterface.h"
#include "src/gpu/GrAttachment.h"

class GrGLAttachment : public GrAttachment {
public:
    struct IDDesc {
        IDDesc() : fRenderbufferID(0) {}
        GrGLuint fRenderbufferID;
    };

    GrGLAttachment(
            GrGpu* gpu, const IDDesc& idDesc, SkISize dimensions, UsageFlags supportedUsages,
            int sampleCnt, GrGLFormat format)
            : GrAttachment(gpu, dimensions, supportedUsages, sampleCnt, GrProtected::kNo)
            , fFormat(format)
            , fRenderbufferID(idDesc.fRenderbufferID) {
        SkASSERT(supportedUsages == UsageFlags::kStencilAttachment);
        this->registerWithCache(SkBudgeted::kYes);
    }

    GrBackendFormat backendFormat() const override;

    GrGLuint renderbufferID() const { return fRenderbufferID; }

    GrGLFormat format() const { return fFormat; }

protected:
    // overrides of GrResource
    void onRelease() override;
    void onAbandon() override;
    void setMemoryBacking(SkTraceMemoryDump* traceMemoryDump,
                          const SkString& dumpName) const override;

private:
    GrGLFormat 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;

    using INHERITED = GrAttachment;
};

#endif