The dequant shader returned before workgroup barriers for missing
blocks. Mask those blocks to zero so ANGLE's D3D compiler accepts the
shader while every invocation reaches each barrier.
The vcpkg ANGLE build also omitted upstream shared-context locking.
Enable both locking definitions so decode dispatches cannot race the
render thread through ANGLE's shared D3D11 state manager.
Build the Windows client against the MSVC ABI while retaining clang
language support. Use vcpkg for ANGLE and libsamplerate, and build
MsQuic with its bundled static OpenSSL.
This brings nanosvg into the project for SVG loading and rendering.
Unfortunatly we can not at this time use a submodule for this project
until https://github.com/memononen/nanosvg/pull/214 is merged.
This prevents issues like obscure characters getting transformed in symbol
names, resulting in an endless game of whack-a-mole finding symbols that are
replaced, such as 58964ce317.
Instead of duplicating the #defines from the shader into the C code,
this commit adds a custom CMake rule that exports all the #defines
from a shader into a C header.
