GrBufferTransferRenderTask.h

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/*
 * Copyright 2022 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef GrBufferTransferRenderTask_DEFINED
#define GrBufferTransferRenderTask_DEFINED
 
#include "src/gpu/ganesh/GrRenderTask.h"
 
class GrGpuBuffer;
 
class GrBufferTransferRenderTask final : public GrRenderTask {
public:
    static sk_sp<GrRenderTask> Make(sk_sp<GrGpuBuffer> src,
                                    size_t srcOffset,
                                    sk_sp<GrGpuBuffer> dst,
                                    size_t dstOffset,
                                    size_t size);
 
    ~GrBufferTransferRenderTask() override;
 
private:
    GrBufferTransferRenderTask(sk_sp<GrGpuBuffer> src,
                               size_t srcOffset,
                               sk_sp<GrGpuBuffer> dst,
                               size_t dstOffset,
                               size_t size);
 
    bool onIsUsed(GrSurfaceProxy* proxy) const override { return false; }
    void gatherProxyIntervals(GrResourceAllocator*) const override {} // no proxies
    ExpectedOutcome onMakeClosed(GrRecordingContext*, SkIRect* targetUpdateBounds) override {
        return ExpectedOutcome::kTargetUnchanged;  // no target
    }
    bool onExecute(GrOpFlushState*) override;
 
#if defined(GR_TEST_UTILS)
    const char* name() const final { return "BufferTransfer"; }
#endif
#ifdef SK_DEBUG
    void visitProxies_debugOnly(const GrVisitProxyFunc&) const override {}
#endif
 
    sk_sp<GrGpuBuffer> fSrc;
    sk_sp<GrGpuBuffer> fDst;
 
    size_t fSrcOffset;
    size_t fDstOffset;
    size_t fSize;
};
 
#endif