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egl: relax context creation requirements

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This commit refactors the wayland EGL init code to call into the
non-wayland init code which is more in the spirit of DRY.

It also highlights that we were requesting PBUFFER and PIXMAP capable
contexts in the non-wayland case.  Since we appear to survive without
those in the wayland renderer, presumably we can survive without them
in all cases.

This may help with activating opengl for this issue:
refs: https://github.com/wez/wezterm/issues/240
This commit is contained in:
Wez Furlong 2020-07-06 07:45:25 -07:00
parent 627a1c6c1b
commit 793af71592
1 changed files with 7 additions and 51 deletions
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58
window/src/egl.rs
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@ -240,56 +240,7 @@ impl GlState {
display: Option<ffi::EGLNativeDisplayType>,
wegl_surface: &wayland_egl::WlEglSurface,
) -> anyhow::Result<Self> {
Self::with_egl_lib(move |egl| {
let egl_display = egl.get_display(display)?;
let (major, minor) = egl.initialize_and_get_version(egl_display)?;
log::info!("initialized EGL version {}.{}", major, minor);
let configs = egl.choose_config(
egl_display,
&[
ffi::ALPHA_SIZE,
8,
ffi::RED_SIZE,
8,
ffi::GREEN_SIZE,
8,
ffi::BLUE_SIZE,
8,
ffi::DEPTH_SIZE,
24,
ffi::CONFORMANT,
ffi::OPENGL_ES3_BIT,
ffi::RENDERABLE_TYPE,
ffi::OPENGL_ES3_BIT,
ffi::SURFACE_TYPE,
ffi::WINDOW_BIT, // | ffi::PBUFFER_BIT | ffi::PIXMAP_BIT,
ffi::NONE,
],
)?;
let first_config = *configs
.first()
.ok_or_else(|| anyhow!("no compatible EGL configuration was found"))?;
let window = wegl_surface.ptr();
let surface = egl.create_window_surface(egl_display, first_config, window)?;
let context = egl.create_context(
egl_display,
first_config,
std::ptr::null(),
&[ffi::CONTEXT_MAJOR_VERSION, 3, ffi::NONE],
)?;
Ok(Self {
egl,
display: egl_display,
context,
surface,
})
})
Self::create(display, wegl_surface.ptr())
}
pub fn create(
@ -305,6 +256,8 @@ impl GlState {
let configs = egl.choose_config(
egl_display,
&[
// Request at least 8bpc, 24bpp. The implementation may
// return a context capable of more than this
ffi::ALPHA_SIZE,
8,
ffi::RED_SIZE,
@ -319,8 +272,11 @@ impl GlState {
ffi::OPENGL_ES3_BIT,
ffi::RENDERABLE_TYPE,
ffi::OPENGL_ES3_BIT,
// Wayland EGL doesn't give us a working context if we request
// PBUFFER|PIXMAP. We don't appear to require these for X11,
// so we're just asking for a WINDOW capable context
ffi::SURFACE_TYPE,
ffi::WINDOW_BIT | ffi::PBUFFER_BIT | ffi::PIXMAP_BIT,
ffi::WINDOW_BIT, //| ffi::PBUFFER_BIT | ffi::PIXMAP_BIT,
ffi::NONE,
],
)?;