* This will handle the new vulkan binding model with multiple descriptor
sets and arrays of objects in each binding. It also makes a few tidy
ups and improvements to other APIs in presentation - will e.g. now
show thumbnails for vertex and other stages.
* Also the PipelineStateViewer will set its current 'sticky' API type
to the common pipeline state, so that when a log isn't loaded we can
still get API-specific properties that match the last API used.
* For now, we just assume that cbuffers are tightly packed according to
D3D11 rules (matrices, structs, float3/4 are all float4 aligned), and
once final SPIR-V is generated everything should have explicit
offsets, strides, and sizes
* Depth is not cleared, only colour buffers.
* This uses the same definition of pass as the quad overdraw overlay,
which isn't quite the same as the auto-grouping passes (which allow
for varying colour binds being grouped together). It only counts up
to the last draw where the outputs were different.
* This API is now intended to be forward and backward compatible as much
as possible. Meaning applications should be able to run without
changing on many RenderDoc versions after the one they are built
against without breaking.
* All function pointers are fetched at once in one versioned GetAPI()
function, to save on constant GetProcAddress/dlsym'ing.
* Otherwise, it's largely similar to the previous API.
* Next step is to display VS and other stage inputs on the input panel.
* Also need to tidy up the fetching of highest mip/array slice etc to
use the same codepath.
* These locks shouldn't cover much work as generally the caches will
quickly fill up and the inside-lock work will be quick.
* Also they shouldn't contend as it's quite rare for anything but the
render thread to go through CustomMarshal.
* Since the exported C functions just take an explicit 'this' parameter
and call the corresponding function, we can just make it contractual
via a virtual interface that the pointer can be dereferenced.
* Tweaked flycam a bit too, but not much.
* Refactored the API/C# side camera classes to avoid exposing a ton of
stuff just to do relative rotations in the arcball via quaternions.
baldurk