void RenderAPI_D3D12::EndModifyTexture(void* textureHandle, int textureWidth, int textureHeight, int rowPitch, void* dataPtr)
{
ID3D12Device* device = s_D3D12->GetDevice();
const UINT64 kDataSize = textureWidth * textureHeight * 4;
ID3D12Resource* upload = GetUploadResource(kDataSize);
upload->Unmap(0, NULL);
ID3D12Resource* resource = (ID3D12Resource*)textureHandle;
D3D12_RESOURCE_DESC desc = resource->GetDesc();
assert(desc.Width == textureWidth);
assert(desc.Height == textureHeight);
D3D12_TEXTURE_COPY_LOCATION srcLoc = {};
srcLoc.pResource = upload;
srcLoc.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
device->GetCopyableFootprints(&desc, 0, 1, 0, &srcLoc.PlacedFootprint, nullptr, nullptr, nullptr);
D3D12_TEXTURE_COPY_LOCATION dstLoc = {};
dstLoc.pResource = resource;
dstLoc.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
dstLoc.SubresourceIndex = 0;
// We inform Unity that we expect this resource to be in D3D12_RESOURCE_STATE_COPY_DEST state,
// and because we do not barrier it ourselves, we tell Unity that no changes are done on our command list.
UnityGraphicsD3D12ResourceState resourceState = {};
resourceState.resource = resource;
resourceState.expected = D3D12_RESOURCE_STATE_COPY_DEST;
resourceState.current = D3D12_RESOURCE_STATE_COPY_DEST;
// Queue data upload
s_D3D12CmdList->CopyTextureRegion(&dstLoc, 0, 0, 0, &srcLoc, nullptr);
// Execute the command list
s_D3D12CmdList->Close();
s_D3D12FenceValue = s_D3D12->ExecuteCommandList(s_D3D12CmdList, 1, &resourceState);
}
