/***************************************************************************
 # Copyright (c) 2015-23, NVIDIA CORPORATION. All rights reserved.
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 # modification, are permitted provided that the following conditions
 # are met:
 #  * Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 #  * Redistributions in binary form must reproduce the above copyright
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 #    documentation and/or other materials provided with the distribution.
 #  * Neither the name of NVIDIA CORPORATION nor the names of its
 #    contributors may be used to endorse or promote products derived
 #    from this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS "AS IS" AND ANY
 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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#include "QueryHeap.h"
#include "Device.h"
#include "GFXAPI.h"

namespace Falcor
{

ref<QueryHeap> QueryHeap::create(ref<Device> pDevice, Type type, uint32_t count)
{
    return ref<QueryHeap>(new QueryHeap(pDevice, type, count));
}

QueryHeap::QueryHeap(ref<Device> pDevice, Type type, uint32_t count) : mpDevice(pDevice), mCount(count), mType(type)
{
    FALCOR_ASSERT(pDevice);
    gfx::IQueryPool::Desc desc = {};
    desc.count = count;
    switch (type)
    {
    case Type::Timestamp:
        desc.type = gfx::QueryType::Timestamp;
        break;
    default:
        FALCOR_UNREACHABLE();
        break;
    }
    FALCOR_GFX_CALL(pDevice->getGfxDevice()->createQueryPool(desc, mGfxQueryPool.writeRef()));
}

void QueryHeap::breakStrongReferenceToDevice()
{
    mpDevice.breakStrongReference();
}

} // namespace Falcor
