Method Present

source/d3d12/d3d12_command_queue_downlevel.cpp:62–130

}

HRESULT STDMETHODCALLTYPE D3D12CommandQueueDownlevel::Present(ID3D12GraphicsCommandList *pOpenCommandList, ID3D12Resource *pSourceTex2D, HWND hWindow, D3D12_DOWNLEVEL_PRESENT_FLAGS Flags)
{
	assert(pSourceTex2D != nullptr);

	// Synchronize access to this command queue while events are invoked and the immediate command list may be accessed
	std::unique_lock<std::recursive_mutex> lock(_parent_queue->_mutex);

	_hwnd = hWindow;
	_swap_index = (_swap_index + 1) % static_cast<UINT>(_back_buffers.size());

	// Update source texture render target view
	if (_back_buffers[_swap_index] != pSourceTex2D)
	{
		reshade::reset_effect_runtime(this);

#if RESHADE_ADDON
		const bool resize = (_back_buffers[0] != nullptr);
		if (resize)
			reshade::invoke_addon_event<reshade::addon_event::destroy_swapchain>(this, resize);
#endif

		// Reduce number of back buffers if less are used than predicted
		if (const auto it = std::find(_back_buffers.begin(), _back_buffers.end(), pSourceTex2D); it != _back_buffers.end())
			_back_buffers.erase(it);
		else
			_back_buffers[_swap_index] = pSourceTex2D;

		// Do not initialize before all back buffers have been set
		// The first to be set is at index 1 due to the addition above, so it is sufficient to check the last to be set, which will be at index 0
		if (_back_buffers[0] != nullptr)
		{
#if RESHADE_ADDON
			reshade::invoke_addon_event<reshade::addon_event::init_swapchain>(this, resize);
#endif

			reshade::init_effect_runtime(this);
		}
	}

	// Do not call 'present' event before 'init_swapchain' event
	if (_back_buffers[0] != nullptr)
	{
#if RESHADE_ADDON
		reshade::invoke_addon_event<reshade::addon_event::present>(_parent_queue, this, nullptr, nullptr, 0, nullptr);
#endif

		reshade::present_effect_runtime(this);

		_parent_queue->flush_immediate_command_list();
	}

	lock.unlock();

	// Get original command list pointer from proxy object
	if (com_ptr<D3D12GraphicsCommandList> command_list_proxy;
		SUCCEEDED(pOpenCommandList->QueryInterface(&command_list_proxy)))
		pOpenCommandList = command_list_proxy->_orig;