diff options
Diffstat (limited to 'backend/drm/backend.c')
| -rw-r--r-- | backend/drm/backend.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/backend/drm/backend.c b/backend/drm/backend.c index 2caf76bd..c7a72a35 100644 --- a/backend/drm/backend.c +++ b/backend/drm/backend.c @@ -1,5 +1,6 @@ #include <assert.h> #include <errno.h> +#include <drm_fourcc.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -238,6 +239,35 @@ struct wlr_backend *wlr_drm_backend_create(struct wl_display *display, goto error_event; } + if (drm->parent) { + // We'll perform a multi-GPU copy for all submitted buffers, we need + // to be able to texture from them + struct wlr_renderer *renderer = drm->renderer.wlr_rend; + const struct wlr_drm_format_set *texture_formats = + wlr_renderer_get_dmabuf_texture_formats(renderer); + if (texture_formats == NULL) { + wlr_log(WLR_ERROR, "Failed to query renderer texture formats"); + goto error_event; + } + + for (size_t i = 0; i < texture_formats->len; i++) { + const struct wlr_drm_format *fmt = texture_formats->formats[i]; + if (fmt->len == 0) { + // Modifiers aren't supported. The implicit modifier changes + // from a GPU to the other, so we can only accept linear + // buffers + wlr_drm_format_set_add(&drm->mgpu_formats, fmt->format, + DRM_FORMAT_MOD_LINEAR); + continue; + } + + for (size_t j = 0; j < fmt->len; j++) { + wlr_drm_format_set_add(&drm->mgpu_formats, fmt->format, + fmt->modifiers[j]); + } + } + } + drm->session_destroy.notify = handle_session_destroy; wl_signal_add(&session->events.destroy, &drm->session_destroy); |