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From: stransky <stransky@redhat.com>
Date: Tue, 29 Aug 2023 12:43:00 +0000
Subject: Bug 1821629 [DMABuf] Don't use DMABuf if it's disabled by Firefox gfx
config r=ng,webrtc-reviewers
Differential Revision: https://phabricator.services.mozilla.com/D172224
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/158a888cad8869a2f0026fa7cfaaa13ecbfcf2ed
---
.../linux/wayland/shared_screencast_stream.cc | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc b/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
index 0c26e7a7d5..22aa355e44 100644
--- a/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
+++ b/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
@@ -28,6 +28,13 @@
#include "rtc_base/synchronization/mutex.h"
#include "rtc_base/time_utils.h"
+// Wrapper for gfxVars::UseDMABuf() as we can't include gfxVars here.
+// We don't want to use dmabuf of known broken systems.
+// See FEATURE_DMABUF for details.
+namespace mozilla::gfx {
+bool IsDMABufEnabled();
+}
+
namespace webrtc {
const int kBytesPerPixel = 4;
@@ -294,7 +301,7 @@ void SharedScreenCastStreamPrivate::OnStreamParamChanged(
that->modifier_ =
has_modifier ? that->spa_video_format_.modifier : DRM_FORMAT_MOD_INVALID;
std::vector<const spa_pod*> params;
- const int buffer_types = has_modifier
+ const int buffer_types = has_modifier && mozilla::gfx::IsDMABufEnabled()
? (1 << SPA_DATA_DmaBuf) | (1 << SPA_DATA_MemFd)
: (1 << SPA_DATA_MemFd);
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