Jan Grulich f2177f6612 PipeWire capturer: implement proper DMA-BUFs support
Currently both KWin (KDE) and Mutter (GNOME) window managers don't
use DMA-BUFs by default, but only when client asks specifically for
them (KWin) or when experimental DMA-BUF support is enabled (Mutter).
While current implementation works just fine on integrated graphics
cards, it causes issues on dedicated GPUs (AMD and NVidia) where the
code either crashes or screensharing is slow and unusable.

To fix this, DMA-BUFs has to be opened using OpenGL context and not
being directly mmaped(). This implementation requires to use DMA-BUF
modifiers, as they are now mandatory for DMA-BUFs usage.

Documentation for this behavior can be found here:
https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/master/doc/dma-buf.dox

Bug: chromium:1233417, webrtc:13137
Change-Id: I0cecf16d6bb0f576954b9e8f071cab526f7baf2c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227022
Commit-Queue: Tommi <tommi@webrtc.org>
Reviewed-by: Tommi <tommi@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#34889}
2021-09-01 08:10:40 +00:00

23 lines
375 B
Python

include_rules = [
"+system_wrappers",
"+third_party/libyuv",
]
specific_include_rules = {
"desktop_frame_cgimage\.h": [
"+sdk/objc",
],
"desktop_frame_iosurface\.h": [
"+sdk/objc",
],
"desktop_frame_provider\.h": [
"+sdk/objc",
],
"egl_dmabuf\.cc": [
"+absl/strings/str_split.h",
],
"screen_capturer_mac\.mm": [
"+sdk/objc",
],
}