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capture: add simple mark support

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The goal here is to have an API that allows us to record things like
frame timing data. We might iterate on this API a bit, but this gets us
started.

A SpCaptureMark with a zero duration should be treated like an epoch mark
once a visualizer is created. SpCaptureMark with a non-zero duration should
be treated like a begin/end of operation. This may be useful in generating
something like a flame graph.
This commit is contained in:
Christian Hergert
2018-05-14 17:15:57 +01:00
parent e6d5d2b70d
commit 4bdbf130b2
8 changed files with 173 additions and 0 deletions
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46
tests/test-capture.c
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@ -531,6 +531,51 @@ test_reader_splice (void)
g_unlink ("writer3.syscap");
}
static void
test_reader_writer_mark (void)
{
SpCaptureWriter *writer;
SpCaptureReader *reader;
const SpCaptureMark *mark;
SpCaptureFrameType type;
GError *error = NULL;
gint r;
writer = sp_capture_writer_new ("mark1.syscap", 0);
sp_capture_writer_add_mark (writer, SP_CAPTURE_CURRENT_TIME, -1, -1, 125, "Draw", "hdmi-1");
sp_capture_writer_add_mark (writer, SP_CAPTURE_CURRENT_TIME, -1, -1, 0, "Deadline", "hdmi-1");
g_clear_pointer (&writer, sp_capture_writer_unref);
reader = sp_capture_reader_new ("mark1.syscap", &error);
g_assert_no_error (error);
g_assert (reader != NULL);
mark = sp_capture_reader_read_mark (reader);
g_assert_nonnull (mark);
g_assert_cmpstr (mark->name, ==, "Draw");
g_assert_cmpint (mark->duration, ==, 125);
g_assert_cmpstr (mark->message, ==, "hdmi-1");
g_assert_cmpint (mark->frame.time, >, 0);
g_assert_cmpint (mark->frame.cpu, ==, -1);
mark = sp_capture_reader_read_mark (reader);
g_assert_nonnull (mark);
g_assert_cmpstr (mark->name, ==, "Deadline");
g_assert_cmpint (mark->duration, ==, 0);
g_assert_cmpstr (mark->message, ==, "hdmi-1");
g_assert_cmpint (mark->frame.time, >, 0);
g_assert_cmpint (mark->frame.cpu, ==, -1);
r = sp_capture_reader_peek_type (reader, &type);
g_assert_cmpint (r, ==, FALSE);
g_clear_pointer (&reader, sp_capture_reader_unref);
g_unlink ("mark1.syscap");
}
int
main (int argc,
char *argv[])
@ -540,5 +585,6 @@ main (int argc,
g_test_add_func ("/SpCapture/ReaderWriter", test_reader_basic);
g_test_add_func ("/SpCapture/Writer/splice", test_writer_splice);
g_test_add_func ("/SpCapture/Reader/splice", test_reader_splice);
g_test_add_func ("/SpCapture/ReaderWriter/mark", test_reader_writer_mark);
return g_test_run ();
}