无法修复DXGI_ERROR_INVALID_CALL - DX12

Question

我打电话给DXGI_ERROR_INVALID_CALL时正在接CreateSwapChain。下面是我创建命令queque的代码。

D3D12_COMMAND_QUEUE_DESC cqDesc = {};
cqDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
cqDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;

hr = g_pDevice->CreateCommandQueue(&cqDesc, IID_PPV_ARGS(&g_pCommandQueue));
if (FAILED(hr)) {
    return false;
}

这里是我给CreateSwapChain打电话的地方。

DXGI_MODE_DESC bBuffDesc = {}; //To describe the display model.
SecureZeroMemory(&bBuffDesc, sizeof(bBuffDesc));
bBuffDesc.Height = Height; // ** Might have to give condition for windowed mode
bBuffDesc.Width = Width;
bBuffDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
bBuffDesc.RefreshRate.Denominator = Denominator;
bBuffDesc.RefreshRate.Numerator = Numerator;
bBuffDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
bBuffDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
DXGI_SAMPLE_DESC sampleDesc; //To describe multi-sampling preference. 
sampleDesc.Count = 1; //We are not using multi-sampling. We take 1 sample per pixel.
sampleDesc.Quality = 0; // no antialiasing
DXGI_SWAP_CHAIN_DESC swapChainDesc = {}; //To describe the swap chain.
swapChainDesc.BufferCount = g_cnFrameBufferCount;
swapChainDesc.BufferDesc = bBuffDesc;
swapChainDesc.SampleDesc = sampleDesc;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; //Tells the pipeline that this is a remder target and not a shader input.
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD; //Discard the buffer after calling present.
swapChainDesc.OutputWindow = hwnd;
//swapChainDesc.Flags = DXGI_SWAP_CHAIN_FLAG_DISPLAY_ONLY;
//swapChainDesc.Windowed = false;

if (g_bWindowed) { // Windowed mode
    swapChainDesc.Windowed = true;
}
else { //Full-Screen mode
    swapChainDesc.Windowed = false;
}


IDXGISwapChain * tempSwapChain = nullptr;

hr = dxgiFactory->CreateSwapChain(g_pCommandQueue, &swapChainDesc, &tempSwapChain);

我的hr返回上述错误。任何帮助都将不胜感激。

更新(问题仍然存在)

• 删除了亚当在评论中指出的对SecureZeroMemory不必要的使用
• 发现hr返回S_OK窗口模式。似乎这个问题必须用全屏模式来解决。

Answer 1

首先，您应该打开调试层，以便使用D3D12GetDebugInterface获得更有意义的消息，并在创建工厂时设置标志DXGI_CREATE_FACTORY_DEBUG。

您还应该尝试使用CreateSwapChainForHwnd，因为CreateSwapChain接近弃用。对于全屏模式，它有一个单独的参数。在这两种情况下，您需要标志DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH才能成功。重复的做法是创建一个带窗口的交换链，然后使用SetFullScreenState，因为windows无论如何都会拒绝您的开关，这必须处理。