On Wed, 2017-07-05 at 11:04 +0300, Paul Kocialkowski wrote:
> This introduces a chamelium_write_frame_to_png function that saves a
> Chamelium frame dump to a png file. This should be useful when a
> frame
> comparison with a reference fails.
>
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxxxxxx>
> ---
> lib/igt_chamelium.c | 40 ++++++++++++++++++++++++++++++++++++++++
> lib/igt_chamelium.h | 3 +++
> 2 files changed, 43 insertions(+)
>
> diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c
> index b9d80b6b..ef51ef68 100644
> --- a/lib/igt_chamelium.c
> +++ b/lib/igt_chamelium.c
> @@ -979,6 +979,46 @@ void chamelium_assert_frame_eq(const struct
> chamelium *chamelium,
> }
>
> /**
> + * chamelium_write_frame_to_png:
> + * @chamelium: The Chamelium instance to use
> + * @dump: The chamelium frame dump to save
> + * @filename: The file name to dump the frame to
> + *
> + * Writes a chamelium frame dump into a png image stored at
> @filename.
> + */
> +void chamelium_write_frame_to_png(const struct chamelium *chamelium,
> + const struct chamelium_frame_dump
> *dump,
> + const char *filename)
> +{
> + cairo_surface_t *dump_surface;
> + pixman_image_t *image_bgr;
> + pixman_image_t *image_argb;
> + int w = dump->width, h = dump->height;
> + uint32_t *bits_bgr = (uint32_t *) dump->bgr;
> + unsigned char *bits_argb;
> + cairo_status_t status;
> +
> + image_bgr = pixman_image_create_bits(
> + PIXMAN_b8g8r8, w, h, bits_bgr,
> + PIXMAN_FORMAT_BPP(PIXMAN_b8g8r8) / 8 * w);
> + image_argb = convert_frame_format(image_bgr,
> PIXMAN_x8r8g8b8);
> + pixman_image_unref(image_bgr);
> +
> + bits_argb = (unsigned char *)
> pixman_image_get_data(image_argb);
> +
> + dump_surface = cairo_image_surface_create_for_data(
> + bits_argb, CAIRO_FORMAT_ARGB32, w, h,
> + PIXMAN_FORMAT_BPP(PIXMAN_x8r8g8b8) / 8 * w);
> +
> + status = cairo_surface_write_to_png(dump_surface, filename);
> + cairo_surface_destroy(dump_surface);
> +
> + pixman_image_unref(image_argb);
> +
> + igt_assert(status == CAIRO_STATUS_SUCCESS);
Use igt_assert_eq()
> +}
> +
> +/**
> * chamelium_get_frame_limit:
> * @chamelium: The Chamelium instance to use
> * @port: The port to check the frame limit on
> diff --git a/lib/igt_chamelium.h b/lib/igt_chamelium.h
> index e51cf4f9..908e03d1 100644
> --- a/lib/igt_chamelium.h
> +++ b/lib/igt_chamelium.h
> @@ -105,6 +105,9 @@ int chamelium_get_frame_limit(struct chamelium
> *chamelium,
> void chamelium_assert_frame_eq(const struct chamelium *chamelium,
> const struct chamelium_frame_dump
> *dump,
> struct igt_fb *fb);
> +void chamelium_write_frame_to_png(const struct chamelium *chamelium,
> + const struct chamelium_frame_dump
> *dump,
> + const char *filename);
> void chamelium_destroy_frame_dump(struct chamelium_frame_dump
> *dump);
>
> #endif /* IGT_CHAMELIUM_H */
--
Cheers,
Lyude
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