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opengl: disable fast ram access for bugged llvmpipe versions

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This commit is contained in:
Julian Orth 2025-10-08 18:17:44 +02:00
parent 02b7a6dc3f
commit 794732c44a
1 changed files with 27 additions and 2 deletions
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29
src/gfx_apis/gl/egl/display.rs
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@ -1,6 +1,7 @@
use {
crate::{
format::{Format, formats},
allocator::BufferObject,
format::{Format, XRGB8888, formats},
gfx_api::{GfxFormat, GfxWriteModifier},
gfx_apis::gl::{
RenderError,
@ -38,11 +39,18 @@ use {
EGL_LOSE_CONTEXT_ON_RESET_EXT, EGL_PLATFORM_GBM_KHR, Egl, GLESV2, GlesV2,
},
},
video::{INVALID_MODIFIER, Modifier, dmabuf::DmaBuf, drm::Drm, gbm::GbmDevice},
utils::bitflags::BitflagsExt,
video::{
INVALID_MODIFIER, Modifier,
dmabuf::{DmaBuf, DmaBufIds},
drm::Drm,
gbm::{GBM_BO_USE_RENDERING, GbmDevice},
},
},
ahash::AHashMap,
indexmap::{IndexMap, IndexSet},
std::{ptr, rc::Rc},
uapi::c::O_RDWR,
};
#[derive(Debug)]
@ -139,6 +147,23 @@ impl EglDisplay {
return Err(RenderError::SurfacelessContext);
}
dpy.formats = query_formats(procs, dpy.dpy)?;
if dpy.fast_ram_access {
dpy.fast_ram_access = false;
if let Some(formats) = dpy.formats.get(&XRGB8888.drm)
&& let Ok(bo) = dpy.gbm.create_bo(
&DmaBufIds::default(),
1,
1,
XRGB8888,
formats.modifiers.keys(),
GBM_BO_USE_RENDERING,
)
&& let Ok(fl) = uapi::fcntl_getfl(bo.dmabuf().planes[0].fd.raw())
&& fl.contains(O_RDWR)
{
dpy.fast_ram_access = true;
}
}
dpy.explicit_sync = dpy
.exts
.contains(KHR_FENCE_SYNC | KHR_WAIT_SYNC | ANDROID_NATIVE_FENCE_SYNC);