GrD3DBuffer.h

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/*
 * Copyright 2020 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef GrD3DBuffer_DEFINED
 
#define GrD3DBuffer_DEFINED
 
#include "include/gpu/d3d/GrD3DTypes.h"
#include "src/gpu/ganesh/GrGpuBuffer.h"
#include "src/gpu/ganesh/GrManagedResource.h"
 
class GrD3DGpu;
 
class GrD3DBuffer : public GrGpuBuffer {
public:
    static sk_sp<GrD3DBuffer> Make(GrD3DGpu*, size_t size, GrGpuBufferType, GrAccessPattern);
 
    ~GrD3DBuffer() override {}
 
    ID3D12Resource* d3dResource() const {
        SkASSERT(fD3DResource);
        return fD3DResource.get();
    }
 
    void setResourceState(const GrD3DGpu* gpu, D3D12_RESOURCE_STATES newResourceState);
 
protected:
    GrD3DBuffer(GrD3DGpu*, size_t size, GrGpuBufferType, GrAccessPattern, gr_cp<ID3D12Resource>,
                sk_sp<GrD3DAlloc>, D3D12_RESOURCE_STATES, std::string_view label);
 
    void onAbandon() override;
    void onRelease() override;
 
    D3D12_RESOURCE_STATES fResourceState;
 
private:
    void releaseResource();
 
    void onMap(MapType) override;
    void onUnmap(MapType) override;
    bool onClearToZero() override;
    bool onUpdateData(const void* src, size_t offset, size_t size, bool preserve) override;
 
    void* internalMap(MapType, size_t offset, size_t size);
    void internalUnmap(MapType, size_t offset, size_t size);
 
#ifdef SK_DEBUG
    void validate() const;
#endif
 
    void onSetLabel() override;
 
    GrD3DGpu* getD3DGpu() const {
        SkASSERT(!this->wasDestroyed());
        return reinterpret_cast<GrD3DGpu*>(this->getGpu());
    }
 
    gr_cp<ID3D12Resource> fD3DResource;
    sk_sp<GrD3DAlloc> fAlloc;
    ID3D12Resource* fStagingBuffer = nullptr;
    size_t fStagingOffset = 0;
 
    using INHERITED = GrGpuBuffer;
};
 
#endif