This work is a heavily refactored and rewritten from TheForge's initial
code.
TheForge's original code had too many race conditions and was
fundamentally flawed as it was too easy to incur into those data races
by accident.
However they identified the proper places that needed changes, and the
idea was sound. I used their work as a blueprint to design this work.
This PR implements:
- Introduction of UMA buffers used by a few buffers
(most notably the ones filled by _fill_instance_data).
Ironically this change seems to positively affect PC more than it does
on Mobile.
Updates D3D12 Memory Allocator to get GPU_UPLOAD heap support.
Metal implementation by Stuart Carnie.
Co-authored-by: Stuart Carnie <stuart.carnie@gmail.com>
Co-authored-by: TheForge team
* Moving over to RenderingShaderContainer, missed setting shader_name
* Use forward declaration reduces compile time when modifying
rendering_shader_container.h from over 950s to about 10-15
This change introduces a new protected type, `ReflectedShaderStage` to
`RenderingShaderContainer` that derived types use to access SPIR-V and
the reflected module, `SpvReflectShaderModule` allowing implementations
to use the reflection information to compile their platform-specific
module.
* Fixes memory leak in `reflect_spirv` that would not deallocate the
`SpvReflectShaderModule` if an error occurred.
* Removes unnecessary allocation when creating `SpvReflectShaderModule`
by passing `NO_COPY` flag to `spvReflectCreateShaderModule2`
constructor function.
* Replaces `VectorView` with `Span` for consistency
* Fixes unnecessary allocations in D3D12 shader container in
`_convert_spirv_to_nir` and `_convert_spirv_to_dxil` which implicitly
converted the old `VectorView` to a `Vector`
