Remove support for GLX. The primary use-case is indirect GPU accelerated
rendering over remote X (say via ssh and X forwarding). That comes at
the expense of an otherwise ugly API (see earlier revisions of this PR)
and issues like #3757, because the GLX error handling requires hooking
into the process-global X error handler. This was already supported only
when using Skia with winit (and thus Rust), not when using the C++ Skia
renderer.
Instead, if GLX is not available, we will fall back to software
rendering as per #3716.
Sometimes Radon drivers report on Windows erroneously that it supports
GL_NV_framebuffer_blit as extension but when looking up
glBlitFramebufferNV via getProcAddress it returns a null pointer.
The issue goes away when bumping the GLES version. GLES 2.0 was released
in 2003 and 3.0 in 2012. Practically everyone supports it nowadays (even
Safari), so that's the easiest solution for the Skia renderer.
* Extend the cspell word list
* Remove those extensions from individual source files
* white-list licenses and such as we should not meddle with those
* Fix spelling
and their related name.
Also move the component module in the item_Tree module
register_component -> register_item_tree
ComponentItemTree -> ItemTreeNodeArray
For #3323
Rationale from that issue:
Right now, we use the term `component` in the Slint language and in the compiler to be a a tree of elements that can be used as an element in a .slint file.
The term is also currently used in the runtime as a tree of runtime Items that are allocated together. (declared in ComponentVTable)
But there are no 1 to 1 mapping between a `component` in the slint language, and a runtime Component.
(for example, the items behind a `if` or `for` or `PopupMenu` are in a different runtime component. And `component` declared in Slint are often inlined)
So we should rename the internal runtime `Component` to `ItemTree`
The currently public `slint::ComponentHandle` wraps the "root" of the ItemTree, but that's ok because it is generated from a .slint `component`, so it doesn't change name
This moves most of the version information we need to update into one
place.
Note that the workplace dependency features are in *addition* to any
feature set when using the workspace dependency. So we have all
workspace dependencies defined with `no-default-features = true`.
- Make BorrowedOpenGLTextureOrigin non_exhaustive
- Mark BorrowedOpenGLTextureBuilder::new_gl_2d_rgba_texture as unsafe instead of build(). The former takes the arguments that may be garbage, not the latter.
Previously, all the closures passed to `get_or_update_cache_entry` would
have to make sure that the scale factor is an included dependency. This
is error prone, as the parent commits show.
Instead, this change adds a property tracker to each ItemCache and lets
the renderer clear the cache if the scale factor changes.
Strictly speaking this may delete too many entries from the cache (not
all depend on the scale factor), but on the other hand this doesn't
happen very often so we trade robustness over efficiency.
- Use WinitSkiaRenderer for the adapter in the winit backend (similar to WinitSoftwareRenderer)
- Use SkiaItemRenderer for the impl of the ItemRenderer trait
The cursor is loaded by the window adapter from the cache. When it's
loaded the first time, its format will be Svg, so we convert it to a
pixel buffer. That way the skia backend can convert it on first draw
into a skia_safe::Image and replace the cache entry with the backend
storage variant.
