tests/cursor: Add test for transform cursor surfaces

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3859>

src/tests/cursor-tests.c

@@ -333,11 +333,13 @@ static void
 test_client_cursor (ClutterStageView    *view,
                     const char          *scale_method,
                     MetaCursor           cursor,
+                    MtkMonitorTransform  transform,
                     const char          *ref_test_name,
                     int                  ref_test_seq,
                     MetaReftestFlag      ref_test_flags)
 {
   const char *cursor_name;
+  const char *transform_name;
   MetaWaylandTestClient *test_client;
   MetaWindow *window;
   MetaWindowActor *window_actor;
@@ -345,11 +347,13 @@ test_client_cursor (ClutterStageView *view,
   g_debug ("Testing cursor with client using %s", scale_method);
 
   cursor_name = meta_cursor_get_name (cursor);
+  transform_name = mtk_monitor_transform_to_string (transform);
   test_client =
     meta_wayland_test_client_new_with_args (test_context,
                                             "cursor-tests-client",
                                             scale_method,
                                             cursor_name,
+                                            transform_name,
                                             NULL);
   meta_wayland_test_driver_wait_for_sync_point (test_driver, 0);
 
@@ -460,11 +464,13 @@ meta_test_native_cursor_scaling (void)
       test_client_cursor (view,
                           CURSOR_SCALE_METHOD_BUFFER_SCALE,
                           cursor,
+                          MTK_MONITOR_TRANSFORM_NORMAL,
                           ref_test_name, 1,
                           meta_ref_test_determine_ref_test_flag ());
       test_client_cursor (view,
                           CURSOR_SCALE_METHOD_VIEWPORT,
                           cursor,
+                          MTK_MONITOR_TRANSFORM_NORMAL,
                           ref_test_name, 0,
                           META_REFTEST_FLAG_NONE);
     }
@@ -540,6 +546,7 @@ meta_test_native_cursor_cropping (void)
       test_client_cursor (view,
                           CURSOR_SCALE_METHOD_VIEWPORT_CROPPED,
                           META_CURSOR_MOVE_OR_RESIZE_WINDOW,
+                          MTK_MONITOR_TRANSFORM_NORMAL,
                           ref_test_name, 0,
                           meta_ref_test_determine_ref_test_flag ());
     }
@@ -547,6 +554,100 @@ meta_test_native_cursor_cropping (void)
   clutter_actor_destroy (overlay_actor);
 }
 
+static void
+meta_test_native_cursor_transform (void)
+{
+  MetaBackend *backend = meta_context_get_backend (test_context);
+  MetaDisplay *display = meta_context_get_display (test_context);
+  ClutterSeat *seat = meta_backend_get_default_seat (backend);
+  g_autoptr (ClutterVirtualInputDevice) virtual_pointer = NULL;
+  ClutterActor *overlay_actor;
+  ClutterStageView *view;
+  struct {
+    int width;
+    int height;
+    float scale;
+    MetaLogicalMonitorLayoutMode layout_mode;
+    MtkMonitorTransform transform;
+  } test_cases[] = {
+    {
+      .width = 1920, .height = 1080, .scale = 1.0,
+      .layout_mode = META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL,
+      .transform = MTK_MONITOR_TRANSFORM_90,
+    },
+    {
+      .width = 1920, .height = 1080, .scale = 1.0,
+      .layout_mode = META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL,
+      .transform = MTK_MONITOR_TRANSFORM_90,
+    },
+    {
+      .width = 1920, .height = 1080, .scale = 2.0,
+      .layout_mode = META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL,
+      .transform = MTK_MONITOR_TRANSFORM_90,
+    },
+    {
+      .width = 1920, .height = 1080, .scale = 2.0,
+      .layout_mode = META_LOGICAL_MONITOR_LAYOUT_MODE_PHYSICAL,
+      .transform = MTK_MONITOR_TRANSFORM_90,
+    },
+    {
+      .width = 1440, .height = 900, .scale = 1.5,
+      .layout_mode = META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL,
+    },
+    {
+      .width = 1440, .height = 900, .scale = 2.25,
+      .layout_mode = META_LOGICAL_MONITOR_LAYOUT_MODE_LOGICAL,
+      .transform = MTK_MONITOR_TRANSFORM_270,
+    },
+  };
+  int i;
+
+  meta_display_set_cursor (display, META_CURSOR_DEFAULT);
+  virtual_pointer = clutter_seat_create_virtual_device (seat,
+                                                        CLUTTER_POINTER_DEVICE);
+  overlay_actor = create_overlay_actor ();
+
+  for (i = 0; i < G_N_ELEMENTS (test_cases); i++)
+    {
+      g_autofree char *ref_test_name = NULL;
+
+      g_debug ("Testing monitor resolution %dx%d with scale %f and "
+               "%s layout mode",
+               test_cases[i].width, test_cases[i].height, test_cases[i].scale,
+               layout_mode_to_string (test_cases[i].layout_mode));
+
+      wait_for_no_windows ();
+
+      ref_test_name = g_strdup_printf ("%s/%d", g_test_get_path (), i);
+
+      view = setup_test_case (test_cases[i].width, test_cases[i].height,
+                              test_cases[i].scale,
+                              test_cases[i].layout_mode,
+                              virtual_pointer);
+
+      test_client_cursor (view,
+                          CURSOR_SCALE_METHOD_BUFFER_SCALE,
+                          META_CURSOR_DEFAULT,
+                          test_cases[i].transform,
+                          ref_test_name, 0,
+                          meta_ref_test_determine_ref_test_flag ());
+      test_client_cursor (view,
+                          CURSOR_SCALE_METHOD_VIEWPORT,
+                          META_CURSOR_DEFAULT,
+                          test_cases[i].transform,
+                          ref_test_name, 1,
+                          meta_ref_test_determine_ref_test_flag ());
+      test_client_cursor (view,
+                          CURSOR_SCALE_METHOD_VIEWPORT_CROPPED,
+                          META_CURSOR_MOVE_OR_RESIZE_WINDOW,
+                          test_cases[i].transform,
+                          ref_test_name, 2,
+                          meta_ref_test_determine_ref_test_flag ());
+    }
+
+  clutter_actor_destroy (overlay_actor);
+}
+
 static void
 init_tests (void)
 {
@@ -554,6 +655,8 @@ init_tests (void)
                    meta_test_native_cursor_scaling);
   g_test_add_func ("/backends/native/cursor/cropping",
                    meta_test_native_cursor_cropping);
+  g_test_add_func ("/backends/native/cursor/transform",
+                   meta_test_native_cursor_transform);
 }
 
 static void

src/tests/wayland-test-clients/cursor-tests-client.c

@@ -20,6 +20,7 @@
 
 #include <wayland-cursor.h>
 
+#include "mtk/mtk.h"
 #include "wayland-test-client-utils.h"
 
 typedef enum _CursorScaleMethod
@@ -31,6 +32,33 @@ typedef enum _CursorScaleMethod
 
 static CursorScaleMethod scale_method;
 static char *cursor_name;
+static MtkMonitorTransform cursor_transform;
+
+static enum wl_output_transform
+wl_output_transform_from_monitor_transform (MtkMonitorTransform transform)
+{
+  switch (transform)
+    {
+    case MTK_MONITOR_TRANSFORM_NORMAL:
+      return WL_OUTPUT_TRANSFORM_NORMAL;
+    case MTK_MONITOR_TRANSFORM_90:
+      return WL_OUTPUT_TRANSFORM_90;
+    case MTK_MONITOR_TRANSFORM_180:
+      return WL_OUTPUT_TRANSFORM_180;
+    case MTK_MONITOR_TRANSFORM_270:
+      return WL_OUTPUT_TRANSFORM_270;
+    case MTK_MONITOR_TRANSFORM_FLIPPED:
+      return WL_OUTPUT_TRANSFORM_FLIPPED;
+    case MTK_MONITOR_TRANSFORM_FLIPPED_90:
+      return WL_OUTPUT_TRANSFORM_FLIPPED_90;
+    case MTK_MONITOR_TRANSFORM_FLIPPED_180:
+      return WL_OUTPUT_TRANSFORM_FLIPPED_180;
+    case MTK_MONITOR_TRANSFORM_FLIPPED_270:
+      return WL_OUTPUT_TRANSFORM_FLIPPED_270;
+    }
+
+  g_assert_not_reached ();
+}
 
 static struct wl_surface *cursor_surface;
 static struct wp_viewport *cursor_viewport;
@@ -51,8 +79,14 @@ on_pointer_enter (WaylandSurface    *surface,
   int ceiled_scale;
   int effective_theme_size = 0;
   float image_scale;
+  int image_width;
+  int image_height;
+  int image_hotspot_x;
+  int image_hotspot_y;
+  MtkMonitorTransform hotspot_transform;
   int hotspot_x = 0;
   int hotspot_y = 0;
+  enum wl_output_transform buffer_transform;
 
   if (!cursor_surface)
     cursor_surface = wl_compositor_create_surface (display->compositor);
@@ -103,30 +137,45 @@ on_pointer_enter (WaylandSurface    *surface,
 
   image_scale = ((float) image->width / theme_size);
 
+  image_width = image->width;
+  image_height = image->height;
+  image_hotspot_x = image->hotspot_x;
+  image_hotspot_y = image->hotspot_y;
+  hotspot_transform = mtk_monitor_transform_invert (cursor_transform);
+  mtk_monitor_transform_transform_point (hotspot_transform,
+                                         &image_width,
+                                         &image_height,
+                                         &image_hotspot_x,
+                                         &image_hotspot_y);
+
   switch (scale_method)
     {
     case CURSOR_SCALE_METHOD_BUFFER_SCALE:
-      hotspot_x = (int) roundf (image->hotspot_x / ceiled_scale);
-      hotspot_y = (int) roundf (image->hotspot_y / ceiled_scale);
+      hotspot_x = (int) roundf (image_hotspot_x / ceiled_scale);
+      hotspot_y = (int) roundf (image_hotspot_y / ceiled_scale);
       break;
     case CURSOR_SCALE_METHOD_VIEWPORT:
-      hotspot_x = (int) roundf (image->hotspot_x / image_scale);
-      hotspot_y = (int) roundf (image->hotspot_y / image_scale);
+      hotspot_x = (int) roundf (image_hotspot_x / image_scale);
+      hotspot_y = (int) roundf (image_hotspot_y / image_scale);
       break;
     case CURSOR_SCALE_METHOD_VIEWPORT_CROPPED:
-      hotspot_x = (int) roundf ((image->hotspot_x -
-                                 (image->width / 4)) / image_scale);
-      hotspot_y = (int) roundf ((image->hotspot_y -
-                                 (image->height / 4)) / image_scale);
+      hotspot_x = (int) roundf ((image_hotspot_x -
+                                 (image_width / 4)) / image_scale);
+      hotspot_y = (int) roundf ((image_hotspot_y -
+                                 (image_height / 4)) / image_scale);
       break;
     }
 
+  buffer_transform =
+    wl_output_transform_from_monitor_transform (cursor_transform);
+  wl_surface_set_buffer_transform (cursor_surface, buffer_transform);
+
   wl_pointer_set_cursor (pointer, serial,
                          cursor_surface,
                          hotspot_x, hotspot_y);
   wl_surface_attach (cursor_surface, buffer, 0, 0);
   wl_surface_damage_buffer (cursor_surface, 0, 0,
-                            image->width, image->height);
+                            image_width, image_height);
 
   switch (scale_method)
     {
@@ -136,18 +185,18 @@ on_pointer_enter (WaylandSurface    *surface,
       break;
     case CURSOR_SCALE_METHOD_VIEWPORT:
       wp_viewport_set_destination (cursor_viewport,
-                                   (int) roundf (image->width / image_scale),
-                                   (int) roundf (image->height / image_scale));
+                                   (int) roundf (image_width / image_scale),
+                                   (int) roundf (image_height / image_scale));
       break;
     case CURSOR_SCALE_METHOD_VIEWPORT_CROPPED:
       wp_viewport_set_source (cursor_viewport,
-                              wl_fixed_from_int (image->width / 4),
-                              wl_fixed_from_int (image->height / 4),
-                              wl_fixed_from_int (image->width / 2),
-                              wl_fixed_from_int (image->height / 2));
+                              wl_fixed_from_int (image_width / 4),
+                              wl_fixed_from_int (image_height / 4),
+                              wl_fixed_from_int (image_width / 2),
+                              wl_fixed_from_int (image_height / 2));
       wp_viewport_set_destination (cursor_viewport,
-                                   (int) roundf (image->width / 2 / image_scale),
-                                   (int) roundf (image->height / 2 / image_scale));
+                                   (int) roundf (image_width / 2 / image_scale),
+                                   (int) roundf (image_height / 2 / image_scale));
       break;
     }
 
@@ -175,6 +224,7 @@ main (int    argc,
     g_error ("Missing scale method");
 
   cursor_name = argv[2];
+  cursor_transform = mtk_monitor_transform_from_string (argv[3]);
 
   display = wayland_display_new (WAYLAND_DISPLAY_CAPABILITY_TEST_DRIVER);
   surface = wayland_surface_new (display,

src/tests/wayland-test-clients/meson.build

@@ -106,6 +106,7 @@ wayland_test_clients = [
     'name': 'cursor-tests-client',
     'extra_deps': [
       wayland_cursor_dep,
+      libmutter_mtk_dep,
     ],
   },
 ]
@@ -141,6 +142,7 @@ foreach test : wayland_test_clients
     dependencies: deps,
     install: have_installed_tests,
     install_dir: wayland_test_client_installed_tests_libexecdir,
+    install_rpath: pkglibdir,
   )
 
   test_client_executables += { test['name']: test_executable }