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clutter: Enable triple buffering and adapt the KMS render tests

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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1441>
This commit is contained in:
Daniel van Vugt
2022-06-30 18:56:06 +08:00
committed by Marge Bot
parent 394bf5ab24
commit 463fc8b92c
2 changed files with 144 additions and 102 deletions
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3
clutter/clutter/clutter-frame-clock.c
View File

@ -977,8 +977,7 @@ clutter_frame_clock_uninhibit (ClutterFrameClock *frame_clock)
static gboolean static gboolean
want_triple_buffering (ClutterFrameClock *frame_clock) want_triple_buffering (ClutterFrameClock *frame_clock)
{ {
/* disabled until test cases are updated */ return TRUE;
return FALSE;
} }
void void

243
src/tests/native-kms-render.c
View File

@ -39,22 +39,29 @@
#include "tests/meta-wayland-test-driver.h" #include "tests/meta-wayland-test-driver.h"
#include "tests/meta-wayland-test-utils.h" #include "tests/meta-wayland-test-utils.h"
#define N_FRAMES_PER_TEST 30
typedef struct typedef struct
{ {
int number_of_frames_left; int number_of_frames_left;
GMainLoop *loop; GMainLoop *loop;
struct { struct {
int n_paints; int n_frames_started;
uint32_t fb_id; int n_presentations;
int n_direct_scanouts;
GList *fb_ids;
gboolean wait_for_scanout;
gboolean expect_double_buffering;
} scanout; } scanout;
gboolean wait_for_scanout;
struct { struct {
gboolean scanout_sabotaged; int last_frame_started;
gboolean fallback_painted; int last_frame_presented;
guint repaint_guard_id; int frame_sabotaged;
int first_scanout;
int fallbacks_painted;
gboolean first_scanout_presented;
ClutterStageView *scanout_failed_view; ClutterStageView *scanout_failed_view;
} scanout_fallback; } scanout_fallback;
} KmsRenderingTest; } KmsRenderingTest;
@ -101,7 +108,7 @@ meta_test_kms_render_basic (void)
gulong handler_id; gulong handler_id;
test = (KmsRenderingTest) { test = (KmsRenderingTest) {
.number_of_frames_left = 10, .number_of_frames_left = N_FRAMES_PER_TEST,
.loop = g_main_loop_new (NULL, FALSE), .loop = g_main_loop_new (NULL, FALSE),
}; };
handler_id = g_signal_connect (stage, "after-update", handler_id = g_signal_connect (stage, "after-update",
@ -116,16 +123,6 @@ meta_test_kms_render_basic (void)
g_signal_handler_disconnect (stage, handler_id); g_signal_handler_disconnect (stage, handler_id);
} }
static void
on_scanout_before_update (ClutterStage *stage,
ClutterStageView *stage_view,
ClutterFrame *frame,
KmsRenderingTest *test)
{
test->scanout.n_paints = 0;
test->scanout.fb_id = 0;
}
static void static void
on_scanout_before_paint (ClutterStage *stage, on_scanout_before_paint (ClutterStage *stage,
ClutterStageView *stage_view, ClutterStageView *stage_view,
@ -135,6 +132,9 @@ on_scanout_before_paint (ClutterStage *stage,
CoglScanout *scanout; CoglScanout *scanout;
CoglScanoutBuffer *scanout_buffer; CoglScanoutBuffer *scanout_buffer;
MetaDrmBuffer *buffer; MetaDrmBuffer *buffer;
uint32_t fb_id;
test->scanout.n_frames_started++;
scanout = clutter_stage_view_peek_scanout (stage_view); scanout = clutter_stage_view_peek_scanout (stage_view);
if (!scanout) if (!scanout)
@ -143,18 +143,13 @@ on_scanout_before_paint (ClutterStage *stage,
scanout_buffer = cogl_scanout_get_buffer (scanout); scanout_buffer = cogl_scanout_get_buffer (scanout);
g_assert_true (META_IS_DRM_BUFFER (scanout_buffer)); g_assert_true (META_IS_DRM_BUFFER (scanout_buffer));
buffer = META_DRM_BUFFER (scanout_buffer); buffer = META_DRM_BUFFER (scanout_buffer);
test->scanout.fb_id = meta_drm_buffer_get_fb_id (buffer); fb_id = meta_drm_buffer_get_fb_id (buffer);
g_assert_cmpuint (test->scanout.fb_id, >, 0); g_assert_cmpuint (fb_id, >, 0);
} test->scanout.fb_ids = g_list_append (test->scanout.fb_ids,
GUINT_TO_POINTER (fb_id));
static void /* Triple buffering, but no higher */
on_scanout_paint_view (ClutterStage *stage, g_assert_cmpuint (g_list_length (test->scanout.fb_ids), <=, 2);
ClutterStageView *stage_view,
MtkRegion *region,
ClutterFrame *frame,
KmsRenderingTest *test)
{
test->scanout.n_paints++;
} }
static void static void
@ -173,13 +168,17 @@ on_scanout_presented (ClutterStage *stage,
MetaDeviceFile *device_file; MetaDeviceFile *device_file;
GError *error = NULL; GError *error = NULL;
drmModeCrtc *drm_crtc; drmModeCrtc *drm_crtc;
uint32_t first_fb_id_expected;
if (test->wait_for_scanout && test->scanout.n_paints > 0) /* Ignore frames from previous sub-tests */
if (test->scanout.n_frames_started <= 0)
return; return;
if (test->wait_for_scanout && test->scanout.fb_id == 0) if (test->scanout.wait_for_scanout && test->scanout.fb_ids == NULL)
return; return;
test->scanout.n_presentations++;
device_pool = meta_backend_native_get_device_pool (backend_native); device_pool = meta_backend_native_get_device_pool (backend_native);
fb = clutter_stage_view_get_onscreen (stage_view); fb = clutter_stage_view_get_onscreen (stage_view);
@ -197,15 +196,37 @@ on_scanout_presented (ClutterStage *stage,
drm_crtc = drmModeGetCrtc (meta_device_file_get_fd (device_file), drm_crtc = drmModeGetCrtc (meta_device_file_get_fd (device_file),
meta_kms_crtc_get_id (kms_crtc)); meta_kms_crtc_get_id (kms_crtc));
g_assert_nonnull (drm_crtc); g_assert_nonnull (drm_crtc);
if (test->scanout.fb_id == 0)
g_assert_cmpuint (drm_crtc->buffer_id, !=, test->scanout.fb_id); /* Triple buffering remains in effect even when transitioning to
* direct scanout. So we expect the first presentation after
* wait_for_scanout will still be composited and won't match the head of
* fb_ids yet...
*/
if (test->scanout.fb_ids &&
(test->scanout.expect_double_buffering ||
test->scanout.n_presentations > 1))
{
test->scanout.n_direct_scanouts++;
first_fb_id_expected = GPOINTER_TO_UINT (test->scanout.fb_ids->data);
test->scanout.fb_ids = g_list_delete_link (test->scanout.fb_ids,
test->scanout.fb_ids);
g_assert_cmpuint (drm_crtc->buffer_id, ==, first_fb_id_expected);
}
else else
g_assert_cmpuint (drm_crtc->buffer_id, ==, test->scanout.fb_id); {
first_fb_id_expected = 0;
g_assert_cmpuint (drm_crtc->buffer_id, !=, first_fb_id_expected);
}
drmModeFreeCrtc (drm_crtc); drmModeFreeCrtc (drm_crtc);
meta_device_file_release (device_file); meta_device_file_release (device_file);
g_main_loop_quit (test->loop); test->number_of_frames_left--;
if (test->number_of_frames_left <= 0)
g_main_loop_quit (test->loop);
else
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
} }
typedef enum typedef enum
@ -226,9 +247,7 @@ meta_test_kms_render_client_scanout (void)
KmsRenderingTest test; KmsRenderingTest test;
MetaWaylandTestClient *wayland_test_client; MetaWaylandTestClient *wayland_test_client;
g_autoptr (MetaWaylandTestDriver) test_driver = NULL; g_autoptr (MetaWaylandTestDriver) test_driver = NULL;
gulong before_update_handler_id;
gulong before_paint_handler_id; gulong before_paint_handler_id;
gulong paint_view_handler_id;
gulong presented_handler_id; gulong presented_handler_id;
MetaWindow *window; MetaWindow *window;
MtkRectangle view_rect; MtkRectangle view_rect;
@ -244,9 +263,11 @@ meta_test_kms_render_client_scanout (void)
g_assert_nonnull (wayland_test_client); g_assert_nonnull (wayland_test_client);
test = (KmsRenderingTest) { test = (KmsRenderingTest) {
.number_of_frames_left = N_FRAMES_PER_TEST,
.loop = g_main_loop_new (NULL, FALSE), .loop = g_main_loop_new (NULL, FALSE),
.wait_for_scanout = TRUE, .scanout = {0},
}; };
test.scanout.wait_for_scanout = TRUE;
g_assert_cmpuint (g_list_length (clutter_stage_peek_stage_views (stage)), g_assert_cmpuint (g_list_length (clutter_stage_peek_stage_views (stage)),
==, ==,
@ -254,12 +275,6 @@ meta_test_kms_render_client_scanout (void)
clutter_stage_view_get_layout (clutter_stage_peek_stage_views (stage)->data, clutter_stage_view_get_layout (clutter_stage_peek_stage_views (stage)->data,
&view_rect); &view_rect);
paint_view_handler_id =
g_signal_connect (stage, "paint-view",
G_CALLBACK (on_scanout_paint_view), &test);
before_update_handler_id =
g_signal_connect (stage, "before-update",
G_CALLBACK (on_scanout_before_update), &test);
before_paint_handler_id = before_paint_handler_id =
g_signal_connect (stage, "before-paint", g_signal_connect (stage, "before-paint",
G_CALLBACK (on_scanout_before_paint), &test); G_CALLBACK (on_scanout_before_paint), &test);
@ -270,7 +285,8 @@ meta_test_kms_render_client_scanout (void)
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage)); clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
g_main_loop_run (test.loop); g_main_loop_run (test.loop);
g_assert_cmpuint (test.scanout.fb_id, >, 0); g_assert_cmpint (test.scanout.n_presentations, ==, N_FRAMES_PER_TEST);
g_assert_cmpint (test.scanout.n_direct_scanouts, ==, N_FRAMES_PER_TEST - 1);
g_debug ("Unmake fullscreen"); g_debug ("Unmake fullscreen");
window = meta_find_window_from_title (test_context, "dma-buf-scanout-test"); window = meta_find_window_from_title (test_context, "dma-buf-scanout-test");
@ -291,11 +307,18 @@ meta_test_kms_render_client_scanout (void)
g_assert_cmpint (buffer_rect.x, ==, 10); g_assert_cmpint (buffer_rect.x, ==, 10);
g_assert_cmpint (buffer_rect.y, ==, 10); g_assert_cmpint (buffer_rect.y, ==, 10);
test.wait_for_scanout = FALSE; test.number_of_frames_left = N_FRAMES_PER_TEST;
test.scanout.wait_for_scanout = FALSE;
test.scanout.expect_double_buffering = TRUE; /* because wait_for_sync_point */
test.scanout.n_frames_started = 0;
test.scanout.n_presentations = 0;
test.scanout.n_direct_scanouts = 0;
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage)); clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
g_main_loop_run (test.loop); g_main_loop_run (test.loop);
g_assert_cmpuint (test.scanout.fb_id, ==, 0); g_assert_cmpint (test.scanout.n_presentations, ==, N_FRAMES_PER_TEST);
g_assert_cmpint (test.scanout.n_direct_scanouts, ==, 1);
g_debug ("Moving back to 0, 0"); g_debug ("Moving back to 0, 0");
meta_window_move_frame (window, TRUE, 0, 0); meta_window_move_frame (window, TRUE, 0, 0);
@ -306,15 +329,20 @@ meta_test_kms_render_client_scanout (void)
g_assert_cmpint (buffer_rect.x, ==, 0); g_assert_cmpint (buffer_rect.x, ==, 0);
g_assert_cmpint (buffer_rect.y, ==, 0); g_assert_cmpint (buffer_rect.y, ==, 0);
test.wait_for_scanout = TRUE; test.number_of_frames_left = N_FRAMES_PER_TEST;
test.scanout.wait_for_scanout = TRUE;
test.scanout.expect_double_buffering = FALSE;
test.scanout.n_frames_started = 0;
test.scanout.n_presentations = 0;
test.scanout.n_direct_scanouts = 0;
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage)); clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
g_main_loop_run (test.loop); g_main_loop_run (test.loop);
g_assert_cmpuint (test.scanout.fb_id, >, 0); g_assert_cmpint (test.scanout.n_presentations, ==, N_FRAMES_PER_TEST);
g_assert_cmpint (test.scanout.n_direct_scanouts, ==, N_FRAMES_PER_TEST - 1);
g_signal_handler_disconnect (stage, before_update_handler_id);
g_signal_handler_disconnect (stage, before_paint_handler_id); g_signal_handler_disconnect (stage, before_paint_handler_id);
g_signal_handler_disconnect (stage, paint_view_handler_id);
g_signal_handler_disconnect (stage, presented_handler_id); g_signal_handler_disconnect (stage, presented_handler_id);
meta_wayland_test_driver_emit_sync_event (test_driver, 0); meta_wayland_test_driver_emit_sync_event (test_driver, 0);
@ -322,30 +350,6 @@ meta_test_kms_render_client_scanout (void)
g_main_loop_unref (test.loop); g_main_loop_unref (test.loop);
} }
static gboolean
needs_repainted_guard (gpointer user_data)
{
g_assert_not_reached ();
return G_SOURCE_REMOVE;
}
static void
scanout_fallback_result_feedback (const MetaKmsFeedback *kms_feedback,
gpointer user_data)
{
KmsRenderingTest *test = user_data;
g_assert_cmpuint (test->scanout_fallback.repaint_guard_id, ==, 0);
g_assert_nonnull (test->scanout_fallback.scanout_failed_view);
test->scanout_fallback.repaint_guard_id =
g_idle_add_full (G_PRIORITY_LOW, needs_repainted_guard, test, NULL);
}
static const MetaKmsResultListenerVtable scanout_fallback_result_listener_vtable = {
.feedback = scanout_fallback_result_feedback,
};
static void static void
on_scanout_fallback_before_paint (ClutterStage *stage, on_scanout_fallback_before_paint (ClutterStage *stage,
ClutterStageView *stage_view, ClutterStageView *stage_view,
@ -356,15 +360,43 @@ on_scanout_fallback_before_paint (ClutterStage *stage,
MetaCrtc *crtc = meta_renderer_view_get_crtc (view); MetaCrtc *crtc = meta_renderer_view_get_crtc (view);
MetaKmsCrtc *kms_crtc = meta_crtc_kms_get_kms_crtc (META_CRTC_KMS (crtc)); MetaKmsCrtc *kms_crtc = meta_crtc_kms_get_kms_crtc (META_CRTC_KMS (crtc));
MetaKmsDevice *kms_device = meta_kms_crtc_get_device (kms_crtc); MetaKmsDevice *kms_device = meta_kms_crtc_get_device (kms_crtc);
MetaFrameNative *frame_native = meta_frame_native_from_frame (frame);
CoglScanout *scanout; CoglScanout *scanout;
MetaKmsUpdate *kms_update; int this_frame;
/* We don't know exactly how many frames the test will take due to:
* 1. Client scanouts taking a while to get started.
* 2. Triple buffering being asynchronous so one can't infer which DRM
* calls have completed from just the painting state.
* 3. Atomic commits now live in a separate thread!
*
* So ensure there's always a reason to start the next frame and
* the test never hangs;
*/
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
this_frame = ++test->scanout_fallback.last_frame_started;
scanout = clutter_stage_view_peek_scanout (stage_view); scanout = clutter_stage_view_peek_scanout (stage_view);
if (!scanout) if (!scanout)
return; return;
g_assert_false (test->scanout_fallback.scanout_sabotaged); if (!test->scanout_fallback.first_scanout)
{
test->scanout_fallback.first_scanout = this_frame;
return;
}
/* Keep the test simple: Only one frame is ever sabotaged and it is
* definitely a direct scanout. But we can't rely on the value of 'scanout'
* alone because that may be non-NULL even when the next commit is going
* to be composited (triple buffering). So wait until first_scanout_presented
* before doing the sabotage.
*/
if (test->scanout_fallback.frame_sabotaged ||
!test->scanout_fallback.first_scanout_presented)
return;
test->scanout_fallback.frame_sabotaged = this_frame;
if (is_atomic_mode_setting (kms_device)) if (is_atomic_mode_setting (kms_device))
{ {
@ -375,17 +407,6 @@ on_scanout_fallback_before_paint (ClutterStage *stage,
drm_mock_queue_error (DRM_MOCK_CALL_PAGE_FLIP, EINVAL); drm_mock_queue_error (DRM_MOCK_CALL_PAGE_FLIP, EINVAL);
drm_mock_queue_error (DRM_MOCK_CALL_SET_CRTC, EINVAL); drm_mock_queue_error (DRM_MOCK_CALL_SET_CRTC, EINVAL);
} }
test->scanout_fallback.scanout_sabotaged = TRUE;
kms_update = meta_frame_native_ensure_kms_update (frame_native, kms_device);
meta_kms_update_add_result_listener (kms_update,
&scanout_fallback_result_listener_vtable,
NULL,
test,
NULL);
test->scanout_fallback.scanout_failed_view = stage_view;
} }
static void static void
@ -395,13 +416,14 @@ on_scanout_fallback_paint_view (ClutterStage *stage,
ClutterFrame *frame, ClutterFrame *frame,
KmsRenderingTest *test) KmsRenderingTest *test)
{ {
if (test->scanout_fallback.scanout_sabotaged) /* With triple buffering, usable fallback paints may occur even before the
{ * failing commit they are needed to replace. So it would be too racy to
g_assert_cmpuint (test->scanout_fallback.repaint_guard_id, !=, 0); * check if the a notification of the failed commit has been emitted yet.
g_clear_handle_id (&test->scanout_fallback.repaint_guard_id, * Just make sure there has been at least one repaint after the sabotage AND
g_source_remove); * that at the end of the test g_test_assert_expected_messages passes.
test->scanout_fallback.fallback_painted = TRUE; */
} if (test->scanout_fallback.frame_sabotaged)
test->scanout_fallback.fallbacks_painted++;
} }
static void static void
@ -410,11 +432,21 @@ on_scanout_fallback_presented (ClutterStage *stage,
ClutterFrameInfo *frame_info, ClutterFrameInfo *frame_info,
KmsRenderingTest *test) KmsRenderingTest *test)
{ {
if (!test->scanout_fallback.scanout_sabotaged) int this_frame;
return;
g_assert_true (test->scanout_fallback.fallback_painted); if (test->scanout_fallback.last_frame_started <= 0)
g_main_loop_quit (test->loop); return; /* Leftovers from previous tests. Ignore. */
this_frame = ++test->scanout_fallback.last_frame_presented;
if (this_frame >= test->scanout_fallback.first_scanout)
test->scanout_fallback.first_scanout_presented = TRUE;
if (test->scanout_fallback.fallbacks_painted > 0)
g_main_loop_quit (test->loop);
test->number_of_frames_left--;
g_assert_cmpint (test->number_of_frames_left, >, 0);
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
} }
static void static void
@ -443,6 +475,7 @@ meta_test_kms_render_client_scanout_fallback (void)
g_assert_nonnull (wayland_test_client); g_assert_nonnull (wayland_test_client);
test = (KmsRenderingTest) { test = (KmsRenderingTest) {
.number_of_frames_left = N_FRAMES_PER_TEST,
.loop = g_main_loop_new (NULL, FALSE), .loop = g_main_loop_new (NULL, FALSE),
}; };
@ -464,6 +497,16 @@ meta_test_kms_render_client_scanout_fallback (void)
g_main_loop_run (test.loop); g_main_loop_run (test.loop);
g_main_loop_unref (test.loop); g_main_loop_unref (test.loop);
g_test_message ("Test ending with:\n"
"\tfallbacks_painted: %d\n"
"\tlast_frame_started: %d\n"
"\tlast_frame_presented: %d\n"
"\tframe_sabotaged: %d",
test.scanout_fallback.fallbacks_painted,
test.scanout_fallback.last_frame_started,
test.scanout_fallback.last_frame_presented,
test.scanout_fallback.frame_sabotaged);
g_test_assert_expected_messages (); g_test_assert_expected_messages ();
g_signal_handler_disconnect (stage, before_paint_handler_id); g_signal_handler_disconnect (stage, before_paint_handler_id);