diff --git a/src/vulkan/wsi/wsi_common_x11.c b/src/vulkan/wsi/wsi_common_x11.c index d3dde5d86ef..26ffa902172 100644 --- a/src/vulkan/wsi/wsi_common_x11.c +++ b/src/vulkan/wsi/wsi_common_x11.c @@ -52,6 +52,7 @@ struct wsi_x11_connection { bool has_dri3_modifiers; bool has_present; bool is_proprietary_x11; + bool is_xwayland; }; struct wsi_x11 { @@ -115,12 +116,57 @@ wsi_x11_check_dri3_compatible(const struct wsi_device *wsi_dev, return match; } +static bool +wsi_x11_detect_xwayland(xcb_connection_t *conn) +{ + xcb_randr_query_version_cookie_t ver_cookie = + xcb_randr_query_version_unchecked(conn, 1, 2); + xcb_randr_query_version_reply_t *ver_reply = + xcb_randr_query_version_reply(conn, ver_cookie, NULL); + bool has_randr_v1_2 = ver_reply && (ver_reply->major_version > 1 || + ver_reply->minor_version >= 2); + free(ver_reply); + + if (!has_randr_v1_2) + return false; + + const xcb_setup_t *setup = xcb_get_setup(conn); + xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup); + + xcb_randr_get_screen_resources_cookie_t gsr_cookie = + xcb_randr_get_screen_resources_unchecked(conn, iter.data->root); + xcb_randr_get_screen_resources_reply_t *gsr_reply = + xcb_randr_get_screen_resources_reply(conn, gsr_cookie, NULL); + + if (!gsr_reply || gsr_reply->num_outputs == 0) { + free(gsr_reply); + return false; + } + + xcb_randr_output_t *randr_outputs = xcb_randr_get_screen_resources_outputs(gsr_reply); + xcb_randr_get_output_info_cookie_t goi_cookie = + xcb_randr_get_output_info(conn, randr_outputs[0], gsr_reply->config_timestamp); + free(gsr_reply); + + xcb_randr_get_output_info_reply_t *goi_reply = + xcb_randr_get_output_info_reply(conn, goi_cookie, NULL); + if (!goi_reply) { + return false; + } + + char *output_name = (char*)xcb_randr_get_output_info_name(goi_reply); + bool is_xwayland = output_name && strncmp(output_name, "XWAYLAND", 8) == 0; + free(goi_reply); + + return is_xwayland; +} + static struct wsi_x11_connection * wsi_x11_connection_create(struct wsi_device *wsi_dev, xcb_connection_t *conn) { - xcb_query_extension_cookie_t dri3_cookie, pres_cookie, amd_cookie, nv_cookie; - xcb_query_extension_reply_t *dri3_reply, *pres_reply, *amd_reply, *nv_reply; + xcb_query_extension_cookie_t dri3_cookie, pres_cookie, randr_cookie, amd_cookie, nv_cookie; + xcb_query_extension_reply_t *dri3_reply, *pres_reply, *randr_reply, *amd_reply, *nv_reply; bool has_dri3_v1_2 = false; bool has_present_v1_2 = false; @@ -132,6 +178,7 @@ wsi_x11_connection_create(struct wsi_device *wsi_dev, dri3_cookie = xcb_query_extension(conn, 4, "DRI3"); pres_cookie = xcb_query_extension(conn, 7, "Present"); + randr_cookie = xcb_query_extension(conn, 5, "RANDR"); /* We try to be nice to users and emit a warning if they try to use a * Vulkan application on a system without DRI3 enabled. However, this ends @@ -147,11 +194,13 @@ wsi_x11_connection_create(struct wsi_device *wsi_dev, dri3_reply = xcb_query_extension_reply(conn, dri3_cookie, NULL); pres_reply = xcb_query_extension_reply(conn, pres_cookie, NULL); + randr_reply = xcb_query_extension_reply(conn, randr_cookie, NULL); amd_reply = xcb_query_extension_reply(conn, amd_cookie, NULL); nv_reply = xcb_query_extension_reply(conn, nv_cookie, NULL); if (!dri3_reply || !pres_reply) { free(dri3_reply); free(pres_reply); + free(randr_reply); free(amd_reply); free(nv_reply); vk_free(&wsi_dev->instance_alloc, wsi_conn); @@ -186,6 +235,11 @@ wsi_x11_connection_create(struct wsi_device *wsi_dev, } #endif + if (randr_reply && randr_reply->present != 0) + { + wsi_conn->is_xwayland = wsi_x11_detect_xwayland(conn); + } + wsi_conn->has_dri3_modifiers = has_dri3_v1_2 && has_present_v1_2; wsi_conn->is_proprietary_x11 = false; if (amd_reply && amd_reply->present)