Method allocate

Source/Falcor/Utils/Algorithm/ParallelReduction.cpp:57–73

}

void ParallelReduction::allocate(uint32_t elementCount, uint32_t elementSize)
{
    if (mpBuffers[0] == nullptr || mpBuffers[0]->getElementCount() < elementCount * elementSize)
    {
        // Buffer 0 has one element per tile.
        mpBuffers[0] = mpDevice->createTypedBuffer<uint4>(elementCount * elementSize);
        mpBuffers[0]->setName("ParallelReduction::mpBuffers[0]");

        // Buffer 1 has one element per N elements in buffer 0.
        const uint32_t numElem1 = div_round_up(elementCount, mpFinalProgram->getReflector()->getThreadGroupSize().x);
        if (mpBuffers[1] == nullptr || mpBuffers[1]->getElementCount() < numElem1 * elementSize)
        {
            mpBuffers[1] = mpDevice->createTypedBuffer<uint4>(numElem1 * elementSize);
            mpBuffers[1]->setName("ParallelReduction::mpBuffers[1]");
        }
    }
}

template<typename T>
void ParallelReduction::execute(