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renderer/native: Allow forcing EGLStream backend

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The GBM support in the NVIDIA driver is fairly new, and to make it
easier to identify whether a problem encountered is related to using GBM
instead of EGLStreams, add a debug environment variable to force using
EGLStream instead of GBM.

To force using EGLStream instead of GBM, use

    MUTTER_DEBUG_FORCE_EGL_STREAM=1

Related: https://gitlab.gnome.org/GNOME/mutter/-/issues/2045
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2132>
This commit is contained in:
Jonas Ådahl 2021-12-03 11:07:00 +01:00 committed by Marge Bot
parent 3cd77f8a79
commit d43cc776ef
1 changed files with 21 additions and 9 deletions
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30
src/backends/native/meta-renderer-native.c
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@ -1664,7 +1664,7 @@ meta_renderer_native_create_renderer_gpu_data (MetaRendererNative *renderer_nat
MetaBackend *backend = meta_renderer_get_backend (renderer);
MetaDevicePool *device_pool =
meta_backend_native_get_device_pool (META_BACKEND_NATIVE (backend));
MetaRendererNativeGpuData *gbm_renderer_gpu_data;
MetaRendererNativeGpuData *gbm_renderer_gpu_data = NULL;
MetaDeviceFileFlags device_file_flags = META_DEVICE_FILE_FLAG_NONE;
g_autoptr (MetaDeviceFile) device_file = NULL;
GError *gbm_error = NULL;
@ -1687,17 +1687,29 @@ meta_renderer_native_create_renderer_gpu_data (MetaRendererNative *renderer_nat
if (!device_file)
return NULL;
gbm_renderer_gpu_data = create_renderer_gpu_data_gbm (renderer_native,
device_file,
gpu_kms,
&gbm_error);
if (gbm_renderer_gpu_data)
#ifdef HAVE_EGL_DEVICE
if (g_strcmp0 (getenv ("MUTTER_DEBUG_FORCE_EGL_STREAM"), "1") != 0)
#endif
{
MetaRenderDevice *render_device = gbm_renderer_gpu_data->render_device;
gbm_renderer_gpu_data = create_renderer_gpu_data_gbm (renderer_native,
device_file,
gpu_kms,
&gbm_error);
if (gbm_renderer_gpu_data)
{
MetaRenderDevice *render_device = gbm_renderer_gpu_data->render_device;
if (meta_render_device_is_hardware_accelerated (render_device))
return gbm_renderer_gpu_data;
if (meta_render_device_is_hardware_accelerated (render_device))
return gbm_renderer_gpu_data;
}
}
#ifdef HAVE_EGL_DEVICE
else
{
g_set_error (&gbm_error, G_IO_ERROR, G_IO_ERROR_FAILED,
"GBM backend was disabled using env var");
}
#endif
#ifdef HAVE_EGL_DEVICE
egl_stream_renderer_gpu_data =