Mainly important for Shader::addSource() to prevent it from creating a
needless copy, but doesn't hurt to do the same also for
uniformLocation(), bindAttributeLocation() etc. -- it'll avoid a runtime
strlen() in that case at least.
And this, this change allows the growable Array to use malloc() instead
of new, and thus also realloc(), saving unnecessary reallocations if the
memory can be grown in-place. All because Containers::Pair is trivially
copyable while std::pair wasn't.
There isn't any good reason to use the STL anymore.
Hm, and here I used the "capability" of std::pair that allowed it to
store references. I don't even want to know what all was involved to
support that, Containers::Reference is much easier to reason about.
Apparently even `= {}` was broken for std::pair once, not to mention the
unnecessary extra overhead with this type not being trivially copyable.
Good riddance.
Given that I made a breaking change by returning Containers::String
instead of a std::string, I can take it further and replace also
std::pair with Containers::Pair -- it won't bring any more pain to the
users, they have to change their code anyway.
Co-authored-by: Hugo Amiard <hugo.amiard@wonderlandengine.com>
Same as in the previous commit, most cases are inputs so a StringStl.h
compatibility include will do, the only breaking change is
GL::Shader::sources() which now returns a StringIterable instead of a
std::vector<std::string> (ew).
Awesome about this whole thing is that The Shader API now allows
creating a shader from sources coming either from string view literals
or Utility::Resource completely without having to allocate any strings
internally, because all those can be just non-owning references wrapped
with String::nullTerminatedGlobalView(). The only parts which aren't
references are the #line markers, but (especially on 64bit) those can
easily fit into the 22-byte (or 10-byte on 32bit) SSO storage.
Also, various Shader constructors and assignment operators had to be
deinlined in order to avoid having to include the String header, which
would be needed for Array destruction during a move.
Co-authored-by: Hugo Amiard <hugo.amiard@wonderlandengine.com>
Most of these are just inputs, so a compatibility StringStl.h include
will do, the only exception is the callback for which there needs to
stay a deprecated overload (which is internally delegated from the
StringView one).
Also explicitly testing with non-null-terminated strings -- the APIs
take an explicit size so it shouldn't be a problem, but it's always good
to have this verified independently. Drivers are crap, you know.
One consequence of no longer using an impossible-to-forward-declare
std::string is that I had to deinline the DebugGroup constructor because
it no longer worked with just a forward-declared StringView.
The previous callback pointer was needed just to disambiguate, so it can
be a bool; the user pointer can be set from the caller already instead
of being done in each variant again.
Because, when it fails, it'd attempt to print them as strings,
inevitably leading to a crash or garbage in the terminal. Moreover, with
the upcoming fix that makes StringView *actually* convertible from an
ArrayView, it would become ambiguous.
Triggers the new OOB assertion in ArrayView element access APIs.
"Technically" this was okay, since converting a BufferMemoryBarrier to
VkBufferMemoryBarrier is just `return this;` (and a cast), which if
`this == nullptr` returns `nullptr`. But practically this probably
triggered all sorts of UB. Haha.
Stone age APIs used here again, I can't fathom how I could live without
member slicing for so long. This also fixes an OOB access which trips up
the new ArrayView assertions -- accessing element 0 in the constructor
isn't a good thing to do if there's no data at all.
This still contained the original message which didn't say the index.
Times changed significantly since then, and the printed index really
proved to be useful.
Also fixing a OOB assertion in the test triggered by the new ArrayView
element access assertions -- the graceful assertion returns the first
element, so we have to have at least one there to return.
The memory wasn't accessed in that case so everything is fine, but this
started tripping up the new assertions in ArrayView element access.
Fixed by moving (and thus duplicating) the access to where it is
actually needed.
Also removed the outdated comment -- there's no _currentData anymore
anywhere, not sure what was that meant to be.
Vladimír Vondruš