[Intel-gfx] [PATCH i-g-t 00/16] Introduction of plotting support

[Damien Lespiau]

Long story short:
  http://entropy.lespiau.name/intel-gpu-tools/test_simple_plot.png
  http://entropy.lespiau.name/intel-gpu-tools/test_two_plots.png

I had fun with the previous week-end errand around igt_stats so did it again
with plots, gearing up towards, some day, generating reports directly in the
micro-bencharks. A couple of example of what can be generated:

This time, it's about plotting data. I started with some synthetic data but
it's only a matter of time until I look at actual data (I'd like to start with
some data upload micro-benchmarks). Anyway, here's what the API looks like
(more can be found in lib/tests/igt_plot.c):


static double f(double x)
{
        return sin(2 * M_PI * x);
}

static void test_simple_plot(void)
{
        igt_vector_t *x, *y;
        igt_plot_t plot;

        x = igt_vector_linear(-1.0, 1.0, 200);
        y = igt_vector_map(x, f);

        igt_plot_init(&plot, 800, 600);
        igt_plot_draw(&plot, x, y);
        igt_plot_write(&plot, "test_simple_plot.png");

        igt_plot_fini(&plot);
        igt_vector_unref(x);
        igt_vector_unref(y);
}

-- 
Damien

Damien Lespiau (16):
  stats: Add a way to generate values following a normal distribution
  stats: Add an igt_stats_init_from_array() variant
  stats: Add an histogram object
  lib: Add some basic types
  plot: Draw nice plots!
  plot: Add a way to color plots
  plot: Add a map() to igt_vector_t
  plot: Add top and right axes
  plot: Draw a grid in the background
  plot: Make sure to have a color in the background
  plot: Add a title to plots
  plot: Add a way to draw debug hints to help layouting
  plot: Add axis titles
  plot: Write simple plot with debug rectangles as well
  plot: Test we can draw more than one graph
  plot: Add an example of the plotting API

 .../intel-gpu-tools/intel-gpu-tools-docs.xml       |   2 +
 lib/Makefile.sources                               |   3 +
 lib/igt_plot.c                                     | 910 +++++++++++++++++++++
 lib/igt_plot.h                                     | 146 ++++
 lib/igt_stats.c                                    | 195 +++++
 lib/igt_stats.h                                    |  28 +
 lib/igt_types.h                                    | 113 +++
 lib/tests/.gitignore                               |   4 +
 lib/tests/Makefile.sources                         |   1 +
 lib/tests/igt_plot.c                               | 136 +++
 lib/tests/igt_stats.c                              |  24 +
 11 files changed, 1562 insertions(+)
 create mode 100644 lib/igt_plot.c
 create mode 100644 lib/igt_plot.h
 create mode 100644 lib/igt_types.h
 create mode 100644 lib/tests/igt_plot.c

-- 
2.1.0