* rdcstr no longer inherits from rdcarray, it implements all functionality
itself.
* There are now three representations:
- Heap-allocated, same as how rdcarray behaves.
- Local-allocated, for small strings we store them in a union array.
- Compile-time literal, only created from user-defined literals.
* The main observation is that a lot of RenderDoc's strings are compile-time
literals either from struct names, member names, or stringified enum values.
Storing these directly and allowing them to be moved and copied quickly saves
on allocations and time. When the string is modified, it's copied to one of the other formats.
* Typeless textures must be interpreted as some kind of format, so without a
better hint we use UNORM as a default. Ensure that this is listed explicitly
* Each binding element within an arrayed descriptor has a bool indicating if
it's dynamically used or not (which will be set to true if the feedback isn't
available). Each descriptor has a uint32_t indicating how many elements are
dynamically used - which is useful for the UI to hide the root of an array
that has no used elements, or to heuristically decide whether to expand or
elide the contents.
* Supported textures are decoded into standard format of YUVA, displayed
visually with Y in green, U in blue, V in red.
* A new texture display mode 'YUVA decode' has been added which does a default
full-range conversion from YUV to RGB.
* Custom shaders can be used to implement a custom decode matrix.
* Instead of baking these into the overlay texture and trying to decode them
afterwards, we instead write a grayscale 16F value into the overlay texture,
and add a special decode display mode that will use the heatmap and bucketing
provided.
* This means that saving these overlay textures now saves grayscale. When saving
to an 8-bit format, we remap to 0-255 so that greater than 1.0 values are
mapped lower.
* This means e.g. the D3D11 back-end can accept DXBC directly if the UI can
provide it, or compile from HLSL as before.
* More importantly, the Vulkan back-end can take SPIR-V compiled from any
source, or compile from GLSL as before as a fall-back.
* The GUIInvoke object takes a QObject, and uses QPointer to check that
it hasn't been deleted when the callback fires. This prevents delayed
callbacks from executing after the object has been deleted and
crashing.
* In most cases the pointer is just 'this'.
* This prevents widget painting from getting out of control and queuing
up many redundant paints which slows down processing of the command
queue.
* Also remove a spammy command to disable pixel context that only ever
got called when pixel context was already disabled (right after a
reset - at all other times it stays active).
baldurk