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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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10
lib/capture/sp-capture-types.h
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@ -68,6 +68,7 @@ typedef enum
SP_CAPTURE_FRAME_JITMAP = 7,
SP_CAPTURE_FRAME_CTRDEF = 8,
SP_CAPTURE_FRAME_CTRSET = 9,
SP_CAPTURE_FRAME_MARK = 10,
} SpCaptureFrameType;
#pragma pack(push, 1)
@ -179,6 +180,14 @@ typedef struct
SpCaptureCounterValues values[0];
} SpCaptureFrameCounterSet;
typedef struct
{
SpCaptureFrame frame;
gint64 duration;
gchar name[32];
gchar message[0];
} SpCaptureMark;
#pragma pack(pop)
G_STATIC_ASSERT (sizeof (SpCaptureFileHeader) == 256);
@ -194,6 +203,7 @@ G_STATIC_ASSERT (sizeof (SpCaptureCounter) == 128);
G_STATIC_ASSERT (sizeof (SpCaptureCounterValues) == 96);
G_STATIC_ASSERT (sizeof (SpCaptureFrameCounterDefine) == 32);
G_STATIC_ASSERT (sizeof (SpCaptureFrameCounterSet) == 32);
G_STATIC_ASSERT (sizeof (SpCaptureMark) == 64);
static inline gint
sp_capture_address_compare (SpCaptureAddress a,