bool
IsDX10Available()
{
DWORD isDX10Available;
if (GetDWORDRegKey(metroDX10Available, isDX10Available)) {
return isDX10Available;
}
bool check = D3DFeatureLevelCheck();
SetDWORDRegKey(metroDX10Available, check);
return check;
}
bool
IsDX10Available()
{
DWORD isDX10Available;
if (GetDWORDRegKey(metroDX10Available, isDX10Available)) {
return isDX10Available;
}
HMODULE dxgiModule = LoadLibraryA("dxgi.dll");
if (!dxgiModule) {
SetDWORDRegKey(metroDX10Available, 0);
return false;
}
CreateDXGIFactory1Func createDXGIFactory1 =
(CreateDXGIFactory1Func) GetProcAddress(dxgiModule, "CreateDXGIFactory1");
if (!createDXGIFactory1) {
SetDWORDRegKey(metroDX10Available, 0);
return false;
}
HMODULE d3d10module = LoadLibraryA("d3d10_1.dll");
if (!d3d10module) {
SetDWORDRegKey(metroDX10Available, 0);
return false;
}
D3D10CreateDevice1Func createD3DDevice =
(D3D10CreateDevice1Func) GetProcAddress(d3d10module,
"D3D10CreateDevice1");
if (!createD3DDevice) {
SetDWORDRegKey(metroDX10Available, 0);
return false;
}
CComPtr<IDXGIFactory1> factory1;
if (FAILED(createDXGIFactory1(__uuidof(IDXGIFactory1), (void**)&factory1))) {
SetDWORDRegKey(metroDX10Available, 0);
return false;
}
CComPtr<IDXGIAdapter1> adapter1;
if (FAILED(factory1->EnumAdapters1(0, &adapter1))) {
SetDWORDRegKey(metroDX10Available, 0);
return false;
}
CComPtr<ID3D10Device1> device;
// Try for DX10.1
if (FAILED(createD3DDevice(adapter1, D3D10_DRIVER_TYPE_HARDWARE, nullptr,
D3D10_CREATE_DEVICE_BGRA_SUPPORT |
D3D10_CREATE_DEVICE_PREVENT_INTERNAL_THREADING_OPTIMIZATIONS,
D3D10_FEATURE_LEVEL_10_1,
D3D10_1_SDK_VERSION, &device))) {
// Try for DX10
if (FAILED(createD3DDevice(adapter1, D3D10_DRIVER_TYPE_HARDWARE, nullptr,
D3D10_CREATE_DEVICE_BGRA_SUPPORT |
D3D10_CREATE_DEVICE_PREVENT_INTERNAL_THREADING_OPTIMIZATIONS,
D3D10_FEATURE_LEVEL_10_0,
D3D10_1_SDK_VERSION, &device))) {
// Try for DX9.3 (we fall back to cairo and cairo has support for D3D 9.3)
if (FAILED(createD3DDevice(adapter1, D3D10_DRIVER_TYPE_HARDWARE, nullptr,
D3D10_CREATE_DEVICE_BGRA_SUPPORT |
D3D10_CREATE_DEVICE_PREVENT_INTERNAL_THREADING_OPTIMIZATIONS,
D3D10_FEATURE_LEVEL_9_3,
D3D10_1_SDK_VERSION, &device))) {
SetDWORDRegKey(metroDX10Available, 0);
return false;
}
}
}
SetDWORDRegKey(metroDX10Available, 1);
return true;
}
