The GL::Renderer::setClearDepth() and setDepthRange() APIs now use the
non-clamping NV entrypoints if available. The float overloads do that
too, to avoid differences in behavior depending on whether these
functions are called with a float or a double type.
I need alpha to coverage for rendering line caps with MSAA, took it as
an opportunity to expose the other related features as well. Fun how I
survived 12+ years without needing those.
"Funny" how this is the only API where I can't use glCreateTextures().
Like, it would have been so easy to just stop teaching glGen*() and
all their quirks and "this ID exists but it's not an object until you
bind it somewhere actually" to people altogether, BUT NO! FFS.
As usual, the old APIs are still present, but marked as deprecated.
Existing code is not updated yet to ensure I didn't break anything with
this.
This way it's much more intuitive and makes the code shorter and nicer
in many cases. Shaders are now also able to hide irrelevant
draw/dispatch APIs to avoid accidents.
Good thing I checked this -- based on WebGL I was under assumption that
all GPUs have it just 256, but that was really just WebGL limitation.
Also ugh why this query wasn't there since the 90's?
ARB_sample_locations and AMD_shader_explicit_vertex_parameter /
NV_fragment_shader_barycentric for barycentic coords in the vertex
shader. The ARB extension mentions GLES but doesn't have any assigned
number, so I'm treating it as desktop-only. There's a NV variant that
does have an ES extension number, but I don't really want to add it just
because that.
What's left is *a lot* of places taking monstrous
std::vector<std::reference_wrapper> and that can't be changed to
std::vector<Containers::Reference> in a source-compatible way. Even that
would be only a temporary change, since the goal is to fully avoid
dependency on STL in those cases.
The final version of these APIs should take
Containers::ArrayView<Containers::Reference> and be implicitly
convertible froom e.g. std::vector<Containers::Reference>. That's
definitely possible, but not in time for 2019.01, so instead of forcing
users to temporary pass a `{vec.begin(), vec.size()}` everywhere instead
of just `vec`, I'm rather keeping these APIs intact.
At the moment just the GL library itself w/o the tests, and without
backwards compatibility aliases. The following types were left in the
root namespace, despite being in the GL/ directory, as they will get
moved back soon:
* Image, CompressedImage and their dimensional typedefs
* ImageView, CompressedImageView and their dimensional typedefs
* PixelStorage
Not PixelFormat etc., that one will stay in the GL namespace and a
completely new PixelFormat enum will be provided in the root namespace.
Followup to previous commit -- links to opengl.org are now redirected to
khronos.org and the extension links have the same format for both GL and
GLES. That allows me to remove some of the Doxygen aliases and use just
a single set of the functions for both GL and GLES.