Differential D15657 Diff 54587 intern/cycles/integrator/denoiser.cpp

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	static Device find_best_device(Device device, DenoiserType type)			static Device find_best_device(Device device, DenoiserType type)
	{			{
	Device *best_device = nullptr;			Device *best_device = nullptr;

	device->foreach_device([&](Device *sub_device) {			device->foreach_device([&](Device *sub_device) {
	if ((sub_device->info.denoisers & type) == 0) {			if ((sub_device->info.denoisers & type) == 0) {
	return;			return;
	}			}

	if (!best_device) {			if (!best_device) {
	best_device = sub_device;			best_device = sub_device;
	}			}
	else {			else {
				/* Prefer a device that can use graphics interop for faster display update. */
				if (sub_device->should_use_graphics_interop() &&
				!best_device->should_use_graphics_interop()) {
				best_device = sub_device;
				}

	/* TODO(sergey): Choose fastest device from available ones. Taking into account performance			/* TODO(sergey): Choose fastest device from available ones. Taking into account performance
	* of the device and data transfer cost. */			* of the device and data transfer cost. */
	}			}
	});			});

	return best_device;			return best_device;
	}			}

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