void D3DCreateSamplerStates()
{
HRESULT result;
// Set up the common properties for our samplers
D3D11_SAMPLER_DESC samplerDesc;
ZeroMemory( &samplerDesc, sizeof(D3D11_SAMPLER_DESC) );
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
samplerDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.MipLODBias = 0.0f;
samplerDesc.MaxAnisotropy = 1;
samplerDesc.ComparisonFunc = D3D11_COMPARISON_ALWAYS;
samplerDesc.BorderColor[0] = 0;
samplerDesc.BorderColor[1] = 0;
samplerDesc.BorderColor[2] = 0;
samplerDesc.BorderColor[3] = 0;
samplerDesc.MinLOD = 0;
samplerDesc.MaxLOD = D3D11_FLOAT32_MAX;
// Create a texture sampler state for nearest/point sampling and wrapping uv's
result = g_pD3DDevice->CreateSamplerState( &samplerDesc, &g_pD3DSampleStateNearestWrap );
if( FAILED( result ) )
{
LOGInfo( LOGTag, "Failed to create SamplerState\n" );
}
// Create a texture sampler state for tri-linear sampling and wrapping uv's
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
result = g_pD3DDevice->CreateSamplerState( &samplerDesc, &g_pD3DSampleStateLinearWrap );
if( FAILED( result ) )
{
LOGInfo( LOGTag, "Failed to create SamplerState\n" );
}
}
bool Initialize(const Microsoft::WRL::ComPtr<ID3D11Device> &device
, const std::shared_ptr<imageutil::Image> &image)
{
D3D11_TEXTURE2D_DESC desc;
desc.Width = image->Width();
desc.Height = image->Height();
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.Usage = D3D11_USAGE_DEFAULT;
desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
desc.CPUAccessFlags = 0;
desc.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA initData;
initData.pSysMem = image->Pointer();
initData.SysMemPitch = image->Stride();
initData.SysMemSlicePitch = image->Size();
auto hr = device->CreateTexture2D(&desc, &initData, &m_texture);
if (FAILED(hr)){
return false;
}
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc = {};
SRVDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
SRVDesc.Texture2D.MipLevels = 1;
hr = device->CreateShaderResourceView(m_texture.Get(), &SRVDesc, &m_srv);
if (FAILED(hr))
{
return false;
}
D3D11_SAMPLER_DESC samplerDesc;
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
samplerDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.MipLODBias = 0.0f;
samplerDesc.MaxAnisotropy = 1;
samplerDesc.ComparisonFunc = D3D11_COMPARISON_ALWAYS;
samplerDesc.BorderColor[0] = 0;
samplerDesc.BorderColor[1] = 0;
samplerDesc.BorderColor[2] = 0;
samplerDesc.BorderColor[3] = 0;
samplerDesc.MinLOD = 0;
samplerDesc.MaxLOD = D3D11_FLOAT32_MAX;
// Create the texture sampler state.
hr = device->CreateSamplerState(&samplerDesc, &m_sampler);
if(FAILED(hr))
{
return false;
}
return true;
}