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tests: run subsurface-shot on GL too

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This adds the necessary fuzz to image matching to let GL-renderer pass.
The difference is due to rounding. weston-test-desktop-shell.c uses

weston_surface_set_color(dts->background_surface, 0.16, 0.32, 0.48, 1.);

to set the background color. Pixman-renderer will truncate those to uint8, but
GL-renderer seems to round instead, which causes the +1 in background color
channel values.

	0.16 * 255 = 40.8
	0.32 * 255 = 81.6
	0.48 * 255 = 122.4

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This commit is contained in:
Pekka Paalanen
2019-11-25 15:17:56 +02:00
committed by Pekka Paalanen
parent 1eae54714f
commit 741fca40b5
1 changed files with 6 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tests/subsurface-shot-test.c
+6 -8
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@@ -50,10 +50,6 @@ fixture_setup(struct weston_test_harness *harness, const enum renderer_type *arg
setup.shell = SHELL_TEST_DESKTOP;
setup.logging_scopes = "log,test-harness-plugin";
/* This test fails due to color rounding on GL */
if (setup.renderer == RENDERER_GL)
return RESULT_SKIP;
return weston_test_harness_execute_as_client(harness, &setup);
}
DECLARE_FIXTURE_SETUP_WITH_ARG(fixture_setup, renderers);
@@ -124,7 +120,8 @@ write_visual_diff(pixman_image_t *ref_image,
struct buffer *shot,
const struct rectangle *clip,
const char *test_name,
int seq_no)
int seq_no,
const struct range *fuzz)
{
char *fname;
char *ext_test_name;
@@ -135,7 +132,7 @@ write_visual_diff(pixman_image_t *ref_image,
assert(ret >= 0);
fname = screenshot_output_filename(ext_test_name, seq_no);
diff = visualize_image_difference(shot->image, ref_image, clip, NULL);
diff = visualize_image_difference(ref_image, shot->image, clip, fuzz);
write_image_as_png(diff, fname);
pixman_image_unref(diff);
@@ -151,6 +148,7 @@ check_screen(struct client *client,
int seq_no)
{
const char *test_name = get_test_name();
const struct range gl_fuzz = { 0, 1 };
struct buffer *shot;
pixman_image_t *ref;
char *ref_fname;
@@ -166,13 +164,13 @@ check_screen(struct client *client,
shot = capture_screenshot_of_output(client);
assert(shot);
match = check_images_match(shot->image, ref, clip, NULL);
match = check_images_match(ref, shot->image, clip, &gl_fuzz);
testlog("ref %s vs. shot %s: %s\n", ref_fname, shot_fname,
match ? "PASS" : "FAIL");
write_image_as_png(shot->image, shot_fname);
if (!match)
write_visual_diff(ref, shot, clip, test_name, seq_no);
write_visual_diff(ref, shot, clip, test_name, seq_no, &gl_fuzz);
buffer_destroy(shot);
pixman_image_unref(ref);