GrMockBuffer.h

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/*
 * Copyright 2017 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef GrMockBuffer_DEFINED
#define GrMockBuffer_DEFINED
 
#include "include/gpu/GpuTypes.h"
#include "include/private/base/SkMalloc.h"
#include "include/private/gpu/ganesh/GrTypesPriv.h"
#include "src/gpu/ganesh/GrCaps.h"
#include "src/gpu/ganesh/GrGpu.h"
#include "src/gpu/ganesh/GrGpuBuffer.h"
#include "src/gpu/ganesh/mock/GrMockGpu.h"
 
#include <cstddef>
#include <string_view>
 
class GrMockBuffer : public GrGpuBuffer {
public:
    GrMockBuffer(GrMockGpu* gpu, size_t sizeInBytes, GrGpuBufferType type,
                 GrAccessPattern accessPattern,
                 std::string_view label)
            : INHERITED(gpu, sizeInBytes, type, accessPattern, label) {
        this->registerWithCache(skgpu::Budgeted::kYes);
    }
 
private:
    void onMap(MapType) override {
        if (GrCaps::kNone_MapFlags != this->getGpu()->caps()->mapBufferFlags()) {
            fMapPtr = sk_malloc_throw(this->size());
        }
    }
    void onUnmap(MapType) override { sk_free(fMapPtr); }
    bool onClearToZero() override { return true; }
    bool onUpdateData(const void* src, size_t offset, size_t size, bool preserve) override {
        return true;
    }
 
    using INHERITED = GrGpuBuffer;
};
 
#endif