fdo-mirrors/weston
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/wayland/weston.git synced 2026-05-07 04:58:16 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

drm-backend: Use explicit synchronisation for Vulkan

Browse source 
We can't rely on Vulkan implementations placing an implicit fence on our
dmabuf, so let's do it ourselves.

Signed-off-by: Daniel Stone <daniels@collabora.com>
This commit is contained in:
Daniel Stone 2026-05-06 16:15:10 +01:00
parent 74bae8e5a7
commit 55ce229733
1 changed files with 12 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
libweston/backend-drm/drm-gbm.c
View file

@ -816,13 +816,15 @@ struct drm_fb *
drm_output_render_vulkan(struct drm_output_state *state, pixman_region32_t *damage)
{
struct drm_output *output = state->output;
struct drm_plane_state *pstate =
drm_output_state_get_plane(state, output->scanout_handle->plane);
struct weston_renderer *renderer = output->base.compositor->renderer;
struct drm_device *device = output->device;
struct linux_dmabuf_memory *dmabuf;
struct drm_fb *ret;
output->base.compositor->renderer->repaint_output(&output->base,
damage,
output->renderbuffer[output->current_image]);
renderer->repaint_output(&output->base, damage,
output->renderbuffer[output->current_image]);
dmabuf = output->linux_dmabuf_memory[output->current_image];
if (!dmabuf) {
@ -840,6 +842,13 @@ drm_output_render_vulkan(struct drm_output_state *state, pixman_region32_t *dama
return NULL;
}
pstate->in_fence_fd = renderer->vulkan->create_fence_fd(&output->base);
if (pstate->in_fence_fd < 1) {
weston_log("failed to get fence fd from rendering\n");
drm_fb_unref(ret);
return NULL;
}
output->current_image = (output->current_image + 1) % ARRAY_LENGTH(output->renderbuffer);
return ret;