diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c index 3a54badabfa..c4177f8799c 100644 --- a/src/egl/drivers/dri2/platform_wayland.c +++ b/src/egl/drivers/dri2/platform_wayland.c @@ -929,19 +929,27 @@ create_wl_buffer(struct dri2_egl_display *dri2_dpy, } bool supported_modifier = false; - if (modifier != DRM_FORMAT_MOD_INVALID) { - supported_modifier = true; - } else { - int visual_idx = dri2_wl_visual_idx_from_fourcc(fourcc); - assert(visual_idx != -1); + bool mod_invalid_supported = false; + int visual_idx = dri2_wl_visual_idx_from_fourcc(fourcc); + assert(visual_idx != -1); - uint64_t *mod; - u_vector_foreach(mod, &dri2_dpy->wl_modifiers[visual_idx]) { - if (*mod == DRM_FORMAT_MOD_INVALID) { - supported_modifier = true; - break; - } + uint64_t *mod; + u_vector_foreach(mod, &dri2_dpy->wl_modifiers[visual_idx]) { + if (*mod == DRM_FORMAT_MOD_INVALID) { + mod_invalid_supported = true; } + if (*mod == modifier) { + supported_modifier = true; + break; + } + } + if (!supported_modifier && mod_invalid_supported) { + /* If the server has advertised DRM_FORMAT_MOD_INVALID then we trust + * that the client has allocated the buffer with the right implicit + * modifier for the format, even though it's allocated a buffer the + * server hasn't explicitly claimed to support. */ + modifier = DRM_FORMAT_MOD_INVALID; + supported_modifier = true; } if (dri2_dpy->wl_dmabuf && supported_modifier) {