st/gui: Port to using xrt_instance, instead of xrt_prober directly.

src/xrt/state_trackers/gui/gui_common.h

@@ -47,6 +47,7 @@ struct gui_program
 	struct gui_scene_manager *gsm;
 
 	struct xrt_device *xdevs[NUM_XDEVS];
+	struct xrt_instance *instance;
 	struct xrt_prober *xp;
 
 	struct gui_ogl_texture *texs[256];

src/xrt/state_trackers/gui/gui_prober.c

@@ -7,6 +7,7 @@
  */
 
 #include "xrt/xrt_prober.h"
+#include "xrt/xrt_instance.h"
 #include "util/u_time.h"
 #include "gui_common.h"
 
@@ -37,17 +38,23 @@ gui_prober_init(struct gui_program *p)
 	int ret = 0;
 
 	// Initialize the prober.
-	ret = xrt_prober_create(&p->xp);
+	ret = xrt_instance_create(&p->instance);
+	if (ret != 0) {
+		return do_exit(p, ret);
+	}
+	ret = xrt_instance_get_prober(p->instance, &p->xp);
 	if (ret != 0) {
 		return do_exit(p, ret);
 	}
 
-	// Need to prime the prober with devices before dumping and listing.
-	ret = xrt_prober_probe(p->xp);
-	if (ret != 0) {
-		return do_exit(p, ret);
+	if (p->xp != NULL) {
+		// Need to prime the prober with devices before dumping and
+		// listing.
+		ret = xrt_prober_probe(p->xp);
+		if (ret != 0) {
+			return do_exit(p, ret);
+		}
 	}
-
 	return 0;
 }
 
@@ -57,7 +64,7 @@ gui_prober_select(struct gui_program *p)
 	int ret;
 
 	// Multiple devices can be found.
-	ret = xrt_prober_select(p->xp, p->xdevs, NUM_XDEVS);
+	ret = xrt_instance_select(p->instance, p->xdevs, NUM_XDEVS);
 	if (ret != 0) {
 		return ret;
 	}
@@ -89,5 +96,5 @@ gui_prober_teardown(struct gui_program *p)
 		p->xdevs[i] = NULL;
 	}
 
-	xrt_prober_destroy(&p->xp);
+	xrt_instance_destroy(&p->instance);
 }

src/xrt/state_trackers/gui/gui_scene_video.c

@@ -170,6 +170,10 @@ create(void)
 void
 gui_scene_select_video_calibrate(struct gui_program *p)
 {
+	if (p->xp == NULL) {
+		// No prober, nothing to create.
+		return;
+	}
 	struct video_select *vs = create();
 
 	gui_scene_push_front(p, &vs->base);

src/xrt/targets/gui/CMakeLists.txt

@@ -8,7 +8,6 @@ set(SOURCE_FILES
 	gui_sdl2.c
 	gui_sdl2_imgui.c
 	gui_sdl2_main.c
-	gui_sdl2_prober.c
 	)
 
 add_executable(gui
@@ -26,8 +25,7 @@ target_link_libraries(gui PRIVATE
 	aux_util
 	aux_math
 	st_gui
-	st_prober
-	target_lists
+	target_instance_no_comp
 	imgui_impl_sdl
 	)
 target_include_directories(gui PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/..)

src/xrt/targets/gui/gui_sdl2_prober.c

@@ -1,16 +0,0 @@
-// Copyright 2019, Collabora, Ltd.
-// SPDX-License-Identifier: BSL-1.0
-/*!
- * @file
- * @brief  Enable the use of the prober in the gui application.
- * @author Jakob Bornecrantz <jakob@collabora.com>
- */
-
-#include "target_lists.h"
-
-
-int
-xrt_prober_create(struct xrt_prober **out_xp)
-{
-	return xrt_prober_create_with_lists(out_xp, &target_lists);
-}

src/xrt/targets/gui/meson.build

@@ -19,7 +19,6 @@ gui = executable(
 		'gui_sdl2.c',
 		'gui_sdl2_imgui.c',
 		'gui_sdl2_main.c',
-		'gui_sdl2_prober.c',
 		'../../../external/imgui/imgui/cimgui_sdl.cpp',
 		'../../../external/imgui/imgui/imgui_impl_sdl.cpp',
 		'../../../external/imgui/imgui/imgui_impl_sdl.h',
@@ -31,7 +30,7 @@ gui = executable(
 		lib_aux_math,
 		lib_st_prober,
 		lib_st_gui,
-		lib_target_lists,
+		lib_target_instance_no_comp,
 	] + driver_libs,
 	include_directories: [
 		aux_include,