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libsysprof-analyze: include time as fractions for marks

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This allows more easily calculating the horizontal position of marks and
their duration from charts.
This commit is contained in:
Christian Hergert
2023-06-15 16:14:32 -07:00
parent 7568c31fcf
commit 6dcb5e5fdd
5 changed files with 73 additions and 22 deletions
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21
src/libsysprof-analyze/sysprof-document-frame.c
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@ -142,9 +142,11 @@ _sysprof_document_frame_new (GMappedFile *mapped_file,
const SysprofCaptureFrame *frame,
guint16 frame_len,
gboolean needs_swap,
gint64 begin_time)
gint64 begin_time,
gint64 end_time)
{
SysprofDocumentFrame *self;
gint64 time_offset;
GType gtype;
switch (frame->type)
@ -206,12 +208,27 @@ _sysprof_document_frame_new (GMappedFile *mapped_file,
break;
}
self = g_object_new (gtype, NULL);
self->mapped_file = g_mapped_file_ref (mapped_file);
self->frame = frame;
self->frame_len = frame_len;
self->needs_swap = !!needs_swap;
self->time_offset = CLAMP (sysprof_document_frame_get_time (self) - begin_time, 0, G_MAXINT64);
time_offset = CLAMP (sysprof_document_frame_get_time (self) - begin_time, 0, G_MAXINT64);
/* loose precision here after about 71 minutes */
self->time_offset = (guint)time_offset;
if (frame->type == SYSPROF_CAPTURE_FRAME_MARK)
{
SysprofDocumentMark *mark = (SysprofDocumentMark *)self;
gint64 capture_duration = end_time - begin_time;
gint64 duration = sysprof_document_mark_get_duration (mark);
mark->begin_fraction = time_offset / (double)capture_duration;
mark->end_fraction = (time_offset + duration) / (double)capture_duration;
}
return self;
}