bool DirectX11Texture2DHelper::InternalConstruct(ID3D11Device* d3dDevice, int width, int height, DXGI_FORMAT format, UINT bindFlags, int mipLevels, int arraySize, int sampleCount, int sampleQuality, D3D11_RTV_DIMENSION rtvDimension, D3D11_UAV_DIMENSION uavDimension, D3D11_SRV_DIMENSION srvDimension)
{
CD3D11_TEXTURE2D_DESC textureDesc(format, width, height, arraySize, mipLevels, bindFlags, D3D11_USAGE_DEFAULT, 0, sampleCount, sampleQuality, mipLevels != 1 ? D3D11_RESOURCE_MISC_GENERATE_MIPS : 0);
if(FAILED(d3dDevice->CreateTexture2D(&textureDesc, 0, mTexture.getModifiablePointer())))
return true;
mTexture->GetDesc(&textureDesc);
if(bindFlags & D3D11_BIND_RENDER_TARGET)
{
mRenderTargetElements.resize(arraySize);
for(int i = 0; i < arraySize; ++i)
{
CD3D11_RENDER_TARGET_VIEW_DESC textureRTVDesc(rtvDimension, format, 0, i, 1);
if(FAILED(d3dDevice->CreateRenderTargetView(mTexture, &textureRTVDesc, mRenderTargetElements[i].getModifiablePointer())))
return true;
}
}
if(bindFlags & D3D11_BIND_UNORDERED_ACCESS)
{
mUnorderedAccessElements.resize(arraySize);
for(int i = 0; i < arraySize; ++i)
{
CD3D11_UNORDERED_ACCESS_VIEW_DESC textureUAVDesc(uavDimension, format, 0, i, 1);
if(FAILED(d3dDevice->CreateUnorderedAccessView(mTexture, &textureUAVDesc, mUnorderedAccessElements[i].getModifiablePointer())))
return true;
}
}
if(bindFlags & D3D11_BIND_SHADER_RESOURCE)
{
CD3D11_SHADER_RESOURCE_VIEW_DESC srvDesc(srvDimension, format, 0, textureDesc.MipLevels, 0, textureDesc.ArraySize);
d3dDevice->CreateShaderResourceView(mTexture, &srvDesc, mShaderResource.getModifiablePointer());
mShaderResourceElements.resize(arraySize);
for(int i = 0; i < arraySize; ++i)
{
CD3D11_SHADER_RESOURCE_VIEW_DESC srvElementDesc(srvDimension, format, 0, 1, i, 1);
if(FAILED(d3dDevice->CreateShaderResourceView(mTexture, &srvElementDesc, mShaderResourceElements[i].getModifiablePointer())))
return true;
}
}
return false;
}
void Texture2D::InternalConstruct(ID3D11Device* d3dDevice,
int width, int height, DXGI_FORMAT format,
UINT bindFlags, int mipLevels, int arraySize,
int sampleCount, int sampleQuality,
D3D11_RTV_DIMENSION rtvDimension,
D3D11_UAV_DIMENSION uavDimension,
D3D11_SRV_DIMENSION srvDimension)
{
// Initalize
mShaderResource = 0;
CD3D11_TEXTURE2D_DESC desc(
format,
width, height, arraySize, mipLevels,
bindFlags,
D3D11_USAGE_DEFAULT, 0,
sampleCount, sampleQuality,
// If they request mipmap levels, it's nice to be able to autogenerate them.
(mipLevels != 1 ? D3D11_RESOURCE_MISC_GENERATE_MIPS : 0));
d3dDevice->CreateTexture2D(&desc, 0, &mTexture);
// Update with actual mip levels, etc.
mTexture->GetDesc(&desc);
if (bindFlags & D3D11_BIND_RENDER_TARGET) {
for (int i = 0; i < arraySize; ++i) {
CD3D11_RENDER_TARGET_VIEW_DESC rtvDesc(
rtvDimension,
format,
0, // Mips
i, 1 // Array
);
ID3D11RenderTargetView* renderTargetView;
d3dDevice->CreateRenderTargetView(mTexture, &rtvDesc, &renderTargetView);
mRenderTargetElements.push_back(renderTargetView);
}
}
if (bindFlags & D3D11_BIND_UNORDERED_ACCESS) {
// UAV's can't point to multisampled resources!
assert(uavDimension != D3D11_UAV_DIMENSION_UNKNOWN);
for (int i = 0; i < arraySize; ++i) {
CD3D11_UNORDERED_ACCESS_VIEW_DESC uavDesc(
uavDimension,
format,
0, // Mips
i, 1 // Array
);
ID3D11UnorderedAccessView* unorderedAccessView;
d3dDevice->CreateUnorderedAccessView(mTexture, &uavDesc, &unorderedAccessView);
mUnorderedAccessElements.push_back(unorderedAccessView);
}
}
if (bindFlags & D3D11_BIND_SHADER_RESOURCE) {
// Whole resource
CD3D11_SHADER_RESOURCE_VIEW_DESC srvDesc(
srvDimension,
format,
0, desc.MipLevels, // Mips
0, desc.ArraySize // Array
);
d3dDevice->CreateShaderResourceView(mTexture, &srvDesc, &mShaderResource);
// Single elements
for (int i = 0; i < arraySize; ++i) {
CD3D11_SHADER_RESOURCE_VIEW_DESC srvElementDesc(
srvDimension,
format,
0, 1, // Mips
i, 1 // Array
);
ID3D11ShaderResourceView* shaderResourceView;
d3dDevice->CreateShaderResourceView(mTexture, &srvElementDesc, &shaderResourceView);
mShaderResourceElements.push_back(shaderResourceView);
}
}
}
