我在从directx检索交换链和设备时遇到问题。更多信息在代码中
void GXDX::StartUp(HWND* mainWindow,int w, int h)
{
//width and height are members of GXDX
width = w; //contains the width
height = h; //contains the height
this->mainWindow = mainWindow; // Is a handle to the main window. it is usually something
//like : unusual -735313406
ID3D10Texture2D *backBufferSurface;
DXGI_SWAP_CHAIN_DESC swapChainDesc;
swapChainDesc.BufferCount = 2;
swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
swapChainDesc.BufferDesc.RefreshRate.Numerator = 60;
swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
swapChainDesc.BufferDesc.Width = width;
swapChainDesc.BufferDesc.Height = height;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.OutputWindow = *mainWindow;
swapChainDesc.Windowed = TRUE;
D3D10_DRIVER_TYPE driverType = D3D10_DRIVER_TYPE_HARDWARE;
HRESULT hr = D3D10CreateDeviceAndSwapChain(NULL,driverType,NULL,0,
D3D10_SDK_VERSION, &swapChainDesc,&swapChain,&dxDevice);
if(FAILED(hr))//Error is here
throw GXVideoException(L"Problems retrieving directX device");
}
以下是方法完成后给出的所有值
- &dxDevice 0x00e74b04 ID3D10Device * *
- 0x00000000 ID3D10Device *
- IUnknown {...} IUnknown
__vfptr CXX0030: Error: expression cannot be evaluated
- &swapChain 0x00e74b08 IDXGISwapChain * *
- 0x00000000 IDXGISwapChain *
- IDXGIDeviceSubObject {...} IDXGIDeviceSubObject
- IDXGIObject {...} IDXGIObject
- IUnknown {...} IUnknown
__vfptr CXX0030: Error: expression cannot be evaluated
- &swapChainDesc 0x002df90c {BufferDesc={...} SampleDesc={...} BufferUsage=0xcccccccc ...} DXGI_SWAP_CHAIN_DESC *
- BufferDesc {Width=0x00000320 Height=0x00000258 RefreshRate={...} ...} DXGI_MODE_DESC
Width 800 unsigned int
Height 600 unsigned int
- RefreshRate {Numerator=60 Denominator=1 } DXGI_RATIONAL
Numerator 60 unsigned int
Denominator 1 unsigned int
Format DXGI_FORMAT_R8G8B8A8_UNORM DXGI_FORMAT
ScanlineOrdering -858993460 DXGI_MODE_SCANLINE_ORDER
Scaling -858993460 DXGI_MODE_SCALING
- SampleDesc {Count=0x00000001 Quality=0x00000000 } DXGI_SAMPLE_DESC
Count 1 unsigned int
Quality 0 unsigned int
BufferUsage 3435973836 unsigned int
BufferCount 2 unsigned int
- OutputWindow 0x008b08ca {unused=-665779669 } HWND__ *
unused -665779669 int
Windowed 1 int
SwapEffect -858993460 DXGI_SWAP_EFFECT
Flags 3435973836 unsigned int
driverType D3D10_DRIVER_TYPE_HARDWARE D3D10_DRIVER_TYPE
hr 0x887a0001 HRESULT
- this 0x00e74af0 {dxDevice=0x00000000 swapChain=0x00000000 } GXDX * const
- GXRenderer {running=true width=0x00000320 height=0x00000258 ...} GXRenderer
- __vfptr 0x013277dc const GXDX::`vftable' *
[0] 0x0132110e GXDX::Render(void) *
[0x1] 0x013211d6 GXDX::StartUp(struct HWND__ * *,int,int) *
[0x2] 0x01321041 GXDX::SetupScene(void) *
[0x3] 0x01321069 GXDX::DisplayScene(void) *
running true bool
width 0x00000320 int
height 0x00000258 int
- mainWindow 0x0132a214 struct HWND__ * GXRenderManager::mainWindow {unused=0x008b08ca } HWND__ *
unused 0x008b08ca int
- dxDevice 0x00000000 ID3D10Device *
+ IUnknown {...} IUnknown
- swapChain 0x00000000 IDXGISwapChain *
- IDXGIDeviceSubObject {...} IDXGIDeviceSubObject
- IDXGIObject {...} IDXGIObject
- IUnknown {...} IUnknown
__vfptr CXX0030: Error: expression cannot be evaluated
[编辑]
在Goz回复之前，我检查了进一步的调试细节，这是收到的
DXGI Error: IDXGIFactory::CreateSwapChain: SwapEffect is unknown.
我猜我没有添加swapeffect属性。我会这样做并检查出来
答案 0 :(得分：1)
但我也注意到这两本书都将交换链描述归零。省去财产更安全。所以我添加了以下内容
SecureZeroMemory(&swapChainDesc, sizeof(swapChainDesc));
一切正常。抛开这个，我仍然应该添加一个swapchain效果属性。但由于理由，这本书决定不这样做，我还没想到。
答案 1 :(得分：0)
尽量不要将指针传递给你的HWND。您应该将HWND作为非指针传递。除此之外，我没有看到任何重大错误。
这就是DXErrorLookup关于你的错误的说法：
HRESULT: 0x887a0001 (2289696769)
Name: DXGI_ERROR_INVALID_CALL
Description: The application has made an erroneous API call that it had enough
information to avoid. This error is intended to denote that the application should be
altered to avoid the error. Use of the debug version of the DXGI.DLL will provide run-
time debug output with further information.
Severity code: Failed
Facility Code: FACILITY_DXGI (2170)
Error Code: 0x0001 (1)
那么您是否考虑过使用DXGI的调试版来查看错误是什么？
顺便说一句，我的DX10初始化工作如下（警告很多代码！）：
HRESULT hr = S_OK;
// Wrong init params passed in.
if ( pParams->paramSize != sizeof( D3D10InitParams ) )
return false;
// Upgrade the initparams to the correct version
mInitParams = *(D3D10InitParams*)pParams;
// Create factory.
IDXGIFactory* pFactory = NULL;
if ( FAILED( CreateDXGIFactory( __uuidof( IDXGIFactory ), (void**)&pFactory ) ) )
{
return false;
}
if ( FAILED( pFactory->MakeWindowAssociation( mInitParams.hWnd, 0 ) ) )
{
return false;
}
HWND hTemp;
pFactory->GetWindowAssociation( &hTemp );
// Enumerate adapters.
unsigned int count = 0;
IDXGIAdapter * pAdapter;
std::vector<IDXGIAdapter*> vAdapters;
while( pFactory->EnumAdapters( count, &pAdapter ) != DXGI_ERROR_NOT_FOUND )
{
vAdapters.push_back( pAdapter );
count++;
}
unsigned int selectedAdapter = mInitParams.display;
if ( vAdapters.size() > 1 )
{
// Need to handle multiple available adapters.
}
// Release all other adapters.
count = 0;
unsigned int max = (unsigned int)vAdapters.size();
while( count < max )
{
if ( count != selectedAdapter )
{
vAdapters[count]->Release();
}
count++;
}
// Device should support all basic DX10 features.
// Caps does not support enough basic features.
//if ( !CheckCaps( &caps ) )
// return false;
// Create the D3D 10 device.
DXGI_MODE_DESC dxgiModeDesc;
dxgiModeDesc.Width = mInitParams.width;
dxgiModeDesc.Height = mInitParams.height;
dxgiModeDesc.RefreshRate.Numerator = (mInitParams.refreshRate == 0) ? 60 : mInitParams.refreshRate;
dxgiModeDesc.RefreshRate.Denominator = 1;
dxgiModeDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
dxgiModeDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_PROGRESSIVE;
dxgiModeDesc.Scaling = DXGI_MODE_SCALING_CENTERED;
DXGI_SAMPLE_DESC dxgiSampleDesc;
dxgiSampleDesc.Count = 1;
dxgiSampleDesc.Quality = 0;
//DXGI_USAGE dxgiUsage;
//dxgiUsage.
DXGI_SWAP_CHAIN_DESC dxgiSwapChainDesc;
dxgiSwapChainDesc.BufferDesc = dxgiModeDesc;
dxgiSwapChainDesc.SampleDesc = dxgiSampleDesc;
dxgiSwapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
dxgiSwapChainDesc.BufferCount = 2;
dxgiSwapChainDesc.OutputWindow = mInitParams.hWnd;
dxgiSwapChainDesc.Windowed = mInitParams.windowed;
dxgiSwapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
dxgiSwapChainDesc.Flags = 0;//DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
// Set the device as a debug device when compiled for debug.
#ifdef _DEBUG
unsigned int flags = D3D10_CREATE_DEVICE_DEBUG;
#else
unsigned int flags = 0;
#endif
mpAdapter = vAdapters[selectedAdapter];
// Create the device and swap chain.
if ( FAILED( D3D10CreateDeviceAndSwapChain( mpAdapter, D3D10_DRIVER_TYPE_HARDWARE, NULL, flags, D3D10_SDK_VERSION, &dxgiSwapChainDesc, &mpSwapChain, &mpDevice ) ) )
{
return false;
}
// Get the back buffer.
ID3D10Texture2D* pBuffer = NULL;
if ( FAILED( mpSwapChain->GetBuffer( 0, __uuidof( ID3D10Texture2D ), (void**)&pBuffer ) ) )
{
return false;
}
// Create the default render target view.
hr = mpDevice->CreateRenderTargetView( pBuffer, NULL, &mDefaultRenderTarget );
pBuffer->Release();
if ( FAILED( hr ) )
{
return false;
}
// Create depth stencil texture
D3D10_TEXTURE2D_DESC descDepth;
descDepth.Width = mInitParams.width;
descDepth.Height = mInitParams.height;
descDepth.MipLevels = 1;
descDepth.ArraySize = 1;
descDepth.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
descDepth.SampleDesc.Count = 1;
descDepth.SampleDesc.Quality = 0;
descDepth.Usage = D3D10_USAGE_DEFAULT;
descDepth.BindFlags = D3D10_BIND_DEPTH_STENCIL;
descDepth.CPUAccessFlags = 0;
descDepth.MiscFlags = 0;
if ( FAILED( mpDevice->CreateTexture2D( &descDepth, NULL, &mpDepthStencilTex ) ) )
{
return false;
}
// Create the depth stencil view
D3D10_DEPTH_STENCIL_VIEW_DESC descDSV;
descDSV.Format = descDepth.Format;
descDSV.ViewDimension = D3D10_DSV_DIMENSION_TEXTURE2D;
descDSV.Texture2D.MipSlice = 0;
if ( FAILED( mpDevice->CreateDepthStencilView( mpDepthStencilTex, &descDSV, &mDefaultDepthStencilTarget ) ) )
{
return false;
}
// Set the default render targets.
mpDevice->OMSetRenderTargets( 1, &mDefaultRenderTarget, mDefaultDepthStencilTarget );
mpEffectDevice = new D3D10EffectStateDevice( GetDevice() );
// Set the default render states.
SetupRenderStates();
// Set the default viewport.
D3D10_VIEWPORT d3d10ViewPort;
d3d10ViewPort.Width = mInitParams.width;
d3d10ViewPort.Height = mInitParams.height;
d3d10ViewPort.TopLeftX = 0;
d3d10ViewPort.TopLeftY = 0;
d3d10ViewPort.MinDepth = 0.0f;
d3d10ViewPort.MaxDepth = 1.0f;
GetDevice()->RSSetViewports( 1, &d3d10ViewPort );
我希望有所帮助！
答案 2 :(得分：0)
以下代码适用于我（我正在使用Microsoft Visual Studio Express 2012 for Windows Desktop）
DXGI_SWAP_CHAIN_DESC swapChainDesc;
swapChainDesc.BufferDesc.Width = width;
swapChainDesc.BufferDesc.Height = height;
swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
swapChainDesc.BufferDesc.RefreshRate.Numerator = 60;
swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.BufferCount = 1;
swapChainDesc.OutputWindow = hWnd;
swapChainDesc.Windowed = true;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
swapChainDesc.Flags = 0;
ID3D11Device *pDevice = 0;
ID3D11DeviceContext *pContext = 0;
IDXGISwapChain *pSwapChain = 0;
HRESULT result;
result = D3D11CreateDeviceAndSwapChain(NULL, driverType, NULL, D3D11_CREATE_DEVICE_SINGLETHREADED, featureLevel, totalFeatureLevel, D3D11_SDK_VERSION, &swapChainDesc, &pSwapChain, &pDevice, ¤tFeatureLevel, &pContext);
因此，您可以尝试向swapChainDesc添加更多属性。