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tests: Add test for subsurfaces mapping hierachies

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Test different scenarios where child subsurfaces of unmapped
subsurfaces would get mapped. This test will fail in various
ways without the commit
"libweston/compositor: Do not map subsurfaces without buffer"

Also try to test potential regressions of that patch.

Signed-off-by: Robert Mader <robert.mader@collabora.com>
This commit is contained in:
Robert Mader 2022-01-26 12:53:31 +01:00 committed by Daniel Stone
parent 8b04534c76
commit c83f0a1539
3 changed files with 129 additions and 0 deletions
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129
tests/subsurface-shot-test.c
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@ -280,3 +280,132 @@ TEST(subsurface_sync_damage_buffer)
wl_subcompositor_destroy(subco);
client_destroy(client);
}
TEST(subsurface_empty_mapping)
{
struct client *client;
struct wl_subcompositor *subco;
struct wp_viewporter *viewporter;
struct buffer *bufs[3] = { 0 };
struct wl_surface *surf[3] = { 0 };
struct wl_subsurface *sub[3] = { 0 };
struct wp_viewport *viewport;
struct rectangle clip = { 40, 40, 280, 200 };
int fail = 0;
unsigned i;
pixman_color_t red;
pixman_color_t blue;
pixman_color_t green;
color_rgb888(&red, 255, 0, 0);
color_rgb888(&blue, 0, 0, 255);
color_rgb888(&green, 0, 255, 0);
client = create_client_and_test_surface(100, 50, 100, 100);
assert(client);
subco = get_subcompositor(client);
viewporter = bind_to_singleton_global(client,
&wp_viewporter_interface, 1);
/* move the pointer clearly away from our screenshooting area */
weston_test_move_pointer(client->test->weston_test, 0, 1, 0, 2, 30);
/* make the parent surface red */
surf[0] = client->surface->wl_surface;
client->surface->wl_surface = NULL; /* we stole it and destroy it */
bufs[0] = surface_commit_color(client, surf[0], &red, 100, 100);
/* sub[0] is not used */
fail += check_screen(client, "subsurface_empty_mapping", 0, &clip, 0);
/* create an empty subsurface on top */
surf[1] = wl_compositor_create_surface(client->wl_compositor);
sub[1] = wl_subcompositor_get_subsurface(subco, surf[1], surf[0]);
wl_subsurface_set_desync (sub[1]);
wl_subsurface_set_position(sub[1], 20, 20);
wl_surface_commit(surf[0]);
fail += check_screen(client, "subsurface_empty_mapping", 0, &clip, 1);
/* create a green subsurface on top */
surf[2] = wl_compositor_create_surface(client->wl_compositor);
sub[2] = wl_subcompositor_get_subsurface(subco, surf[2], surf[1]);
wl_subsurface_set_desync (sub[2]);
bufs[2] = surface_commit_color(client, surf[2], &green, 100, 100);
wl_subsurface_set_position(sub[2], 20, 20);
wl_surface_commit(surf[1]);
fail += check_screen(client, "subsurface_empty_mapping", 0, &clip, 2);
wl_surface_attach(surf[1], NULL, 0, 0);
wl_surface_commit(surf[1]);
fail += check_screen(client, "subsurface_empty_mapping", 0, &clip, 3);
wl_surface_set_buffer_scale (surf[1], 1);
wl_surface_commit(surf[1]);
fail += check_screen(client, "subsurface_empty_mapping", 0, &clip, 4);
viewport = wp_viewporter_get_viewport(viewporter, surf[1]);
wp_viewport_set_destination(viewport, 5, 5);
wl_surface_commit(surf[1]);
fail += check_screen(client, "subsurface_empty_mapping", 0, &clip, 5);
wp_viewport_set_destination(viewport, -1, -1);
wl_surface_commit(surf[1]);
fail += check_screen(client, "subsurface_empty_mapping", 0, &clip, 6);
/* map the previously empty middle surface with a blue buffer */
bufs[1] = surface_commit_color(client, surf[1], &blue, 100, 100);
fail += check_screen(client, "subsurface_empty_mapping", 1, &clip, 7);
/* try to trigger a recomputation of the buffer size with the
* shm-buffer potentially being released already */
wl_surface_set_buffer_scale (surf[1], 1);
wl_surface_commit(surf[1]);
fail += check_screen(client, "subsurface_empty_mapping", 1, &clip, 8);
/* try more */
wp_viewport_set_destination(viewport, 100, 100);
wl_surface_commit(surf[1]);
fail += check_screen(client, "subsurface_empty_mapping", 1, &clip, 9);
/* unmap the middle surface again to ensure recursive unmapping */
wl_surface_attach(surf[1], NULL, 0, 0);
wl_surface_commit(surf[1]);
fail += check_screen(client, "subsurface_empty_mapping", 0, &clip, 10);
/* remap middle surface to ensure recursive mapping */
bufs[1] = surface_commit_color(client, surf[1], &blue, 100, 100);
fail += check_screen(client, "subsurface_empty_mapping", 1, &clip, 11);
assert(fail == 0);
wp_viewport_destroy(viewport);
for (i = 0; i < ARRAY_LENGTH(sub); i++)
if (sub[i])
wl_subsurface_destroy(sub[i]);
for (i = 0; i < ARRAY_LENGTH(surf); i++)
if (surf[i])
wl_surface_destroy(surf[i]);
for (i = 0; i < ARRAY_LENGTH(bufs); i++)
if (bufs[i])
buffer_destroy(bufs[i]);
wp_viewporter_destroy(viewporter);
wl_subcompositor_destroy(subco);
client_destroy(client);
}