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tests: Add capture_screenshot_of_output()

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Provides a convenience function for JFDI grabbing of a single
screenshot.  Tests that are doing multiple screenshots or other
fanciness probably will bypass this routine and do things more manually,
but this'll provide a reference implementation.  And hopefully there'll
be enough simple cases that this actually is useful.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-By: Derek Foreman <derekf@osg.samsung.com>
This commit is contained in:
Bryce Harrington
2015-05-14 15:07:55 -07:00
parent 39a5be2a1f
commit 111e022e91
1 changed files with 37 additions and 23 deletions
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tests/internal-screenshot-test.c
+37 -23
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@@ -141,6 +141,39 @@ create_screenshot_surface(struct client *client) {
return screenshot;
}
/** capture_screenshot_of_output()
*
* Requests a screenshot from the server of the output that the
* client appears on. The image data returned from the server
* can be accessed from the screenshot surface's data member.
*
* @returns a new surface object, which should be free'd when no
* longer needed.
*/
static struct surface *
capture_screenshot_of_output(struct client *client) {
struct surface *screenshot;
/* Create a surface to hold the screenshot */
screenshot = create_screenshot_surface(client);
client->test->buffer_copy_done = 0;
weston_test_capture_screenshot(client->test->weston_test,
client->output->wl_output,
screenshot->wl_buffer);
while (client->test->buffer_copy_done == 0)
if (wl_display_dispatch(client->wl_display) < 0)
break;
/* FIXME: Document somewhere the orientation the screenshot is taken
* and how the clip coords are interpreted, in case of scaling/transform.
* If we're using read_pixels() just make sure it is documented somewhere.
* Protocol docs in the XML, comparison function docs in Doxygen style.
*/
return screenshot;
}
TEST(internal_screenshot)
{
struct client *client;
@@ -151,34 +184,15 @@ TEST(internal_screenshot)
bool match = false;
bool dump_all_images = true;
printf("Starting test\n");
/* Create the client */
printf("Creating client for test\n");
client = create_client_and_test_surface(100, 100, 100, 100);
assert(client);
printf("Client created\n");
/* Create a surface to hold the screenshot */
screenshot = create_screenshot_surface(client);
assert(screenshot);
printf("Screenshot buffer created and attached to surface\n");
/* Take a snapshot. Result will be in screenshot->wl_buffer. */
client->test->buffer_copy_done = 0;
weston_test_capture_screenshot(client->test->weston_test,
client->output->wl_output,
screenshot->wl_buffer);
printf("Capture request sent\n");
while (client->test->buffer_copy_done == 0)
if (wl_display_dispatch(client->wl_display) < 0)
break;
printf("Roundtrip done\n");
/* FIXME: Document somewhere the orientation the screenshot is taken
* and how the clip coords are interpreted, in case of scaling/transform.
* If we're using read_pixels() just make sure it is documented somewhere.
* Protocol docs in the XML, comparison function docs in Doxygen style.
*/
printf("Taking a screenshot\n");
screenshot = capture_screenshot_of_output(client);
assert(screenshot);
/* Load reference image */
fname = screenshot_reference_filename("internal-screenshot", 0);