bool IndexBuffer::initialize(GraphicsDevice& device, UsageType usage,
void* initialData, unsigned int size)
{
assert(data.buffer == nullptr);
assert(device.getDeviceData().d3dContext != nullptr);
ID3D11Device* d3dDevice = device.getDeviceData().d3dDevice;
D3D11_BUFFER_DESC bufferDesc;
bufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
bufferDesc.CPUAccessFlags = 0;
bufferDesc.MiscFlags = 0;
bufferDesc.ByteWidth = size;
bufferDesc.StructureByteStride = 0;
bufferDesc.Usage = static_cast<D3D11_USAGE>(usage);
if(usage == UsageType::Dynamic)
bufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
D3D11_SUBRESOURCE_DATA bufferData;
bufferData.pSysMem = initialData;
bufferData.SysMemPitch = 0;
bufferData.SysMemSlicePitch = 0;
D3D11_SUBRESOURCE_DATA* bufferDataPtr = nullptr;
if(initialData != nullptr)
bufferDataPtr = &bufferData;
if(FAILED(d3dDevice->CreateBuffer(&bufferDesc, bufferDataPtr, &data.buffer)))
{
release();
return false;
}
data.context = device.getDeviceData().d3dContext;
return true;
}
bool SamplerState::initialize(GraphicsDevice& device, SamplerStateDescription desc)
{
D3D11_SAMPLER_DESC samplerDesc;
samplerDesc.AddressU = static_cast<D3D11_TEXTURE_ADDRESS_MODE>(desc.addressU);
samplerDesc.AddressV = static_cast<D3D11_TEXTURE_ADDRESS_MODE>(desc.addressV);
samplerDesc.AddressW = static_cast<D3D11_TEXTURE_ADDRESS_MODE>(desc.addressW);
samplerDesc.ComparisonFunc = D3D11_COMPARISON_NEVER;
samplerDesc.MaxAnisotropy = desc.maxAnisotropy;
samplerDesc.MaxLOD = desc.maxMip;
samplerDesc.MinLOD = desc.minMip;
samplerDesc.MipLODBias = desc.mipBias;
if(desc.minFilter == SamplerFilter::Anisotropic || desc.magFilter == SamplerFilter::Anisotropic ||
desc.mipFilter == SamplerFilter::Anisotropic)
samplerDesc.Filter = D3D11_FILTER_ANISOTROPIC;
if(desc.minFilter == desc.magFilter && desc.minFilter == desc.mipFilter)
{
switch(desc.minFilter)
{
case SamplerFilter::Point:
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
break;
case SamplerFilter::Linear:
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
break;
}
}
else if(desc.minFilter == desc.magFilter)
{
switch(desc.minFilter)
{
case SamplerFilter::Point:
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_POINT_MIP_LINEAR;
break;
case SamplerFilter::Linear:
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_LINEAR_MIP_POINT;
break;
}
}
else if(desc.magFilter == desc.mipFilter)
{
switch(desc.minFilter)
{
case SamplerFilter::Point:
samplerDesc.Filter = D3D11_FILTER_MIN_POINT_MAG_MIP_LINEAR;
break;
case SamplerFilter::Linear:
samplerDesc.Filter = D3D11_FILTER_MIN_LINEAR_MAG_MIP_POINT;
break;
}
}
else
{
switch(desc.minFilter)
{
case SamplerFilter::Point:
samplerDesc.Filter = D3D11_FILTER_MIN_POINT_MAG_LINEAR_MIP_POINT;
break;
case SamplerFilter::Linear:
samplerDesc.Filter = D3D11_FILTER_MIN_LINEAR_MAG_POINT_MIP_LINEAR;
break;
}
}
if(FAILED(device.getDeviceData().d3dDevice->CreateSamplerState(&samplerDesc, &data.samplerState)))
return false;
return true;
}