gstreamer/subprojects/gst-plugins-bad/tests/check/elements/d3d11videosink.c

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/* GStreamer
*
* Unit test for d3d11videosink element
* Copyright (C) 2023 Alexander Slobodeniuk <aslobodeniuk@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/check/gstcheck.h>
#include <gst/video/video.h>
#include <windows.h>
#define WM_FIXTURE_RESTART (WM_USER + 123)
#define WM_FIXTURE_TRICKY_RESTART (WM_FIXTURE_RESTART + 1)
static struct
{
HWND hwnd;
GstElement *pipeline;
gboolean ever_started;
volatile gboolean stopping;
} fixture;
static void
fixture_sleep_approx_ms (guint ms)
{
Sleep (g_random_int_range (0, ms));
}
static gpointer
fixture_restart_playback (gpointer data)
{
GST_DEBUG ("Restarting the pipeline");
gst_element_set_state (fixture.pipeline, GST_STATE_NULL);
GST_DEBUG ("Stopped");
gst_element_set_state (fixture.pipeline, GST_STATE_PLAYING);
GST_DEBUG ("Started");
return NULL;
}
static LRESULT CALLBACK
test_win32window_window_proc (HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam)
{
switch (message) {
case WM_FIXTURE_RESTART:
fixture_restart_playback (NULL);
break;
case WM_FIXTURE_TRICKY_RESTART:
/* Synchronous stop, but the sink will have to
* release it's internal window asynchronously */
g_thread_join (g_thread_new (NULL, fixture_restart_playback, NULL));
break;
case WM_DESTROY:
PostQuitMessage (0);
break;
default:
/* Simulate application load */
fixture_sleep_approx_ms (30);
return DefWindowProc (hwnd, message, wParam, lParam);
}
return 0;
}
static void
test_win32window_create_window (void)
{
HINSTANCE hinstance = GetModuleHandleA (NULL);
WNDCLASSEXA wc;
ATOM atom = 0;
const gchar *class_name = "d3d11videosink_test";
GST_DEBUG ("Creating a win32 window");
atom = GetClassInfoExA (hinstance, class_name, &wc);
if (atom == 0) {
ZeroMemory (&wc, sizeof (WNDCLASSEXA));
wc.cbSize = sizeof (WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = test_win32window_window_proc;
wc.hInstance = hinstance;
wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
wc.lpszClassName = class_name;
fail_unless (RegisterClassExA (&wc));
}
fixture.hwnd =
CreateWindowA (class_name, "d3d11videosink test", WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hinstance, NULL);
fail_unless (fixture.hwnd);
}
static void
test_win32window_msg_loop (void)
{
MSG msg;
while (GetMessage (&msg, NULL, 0, 0)) {
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
static gpointer
test_win32window_resize_thr2 (gpointer data)
{
gint16 length = 0;
while (!fixture.stopping) {
if ((length += 1) > 164) {
length = 0;
}
MoveWindow (fixture.hwnd, 0, 0, length, length, 1);
fixture_sleep_approx_ms (10);
}
return NULL;
}
static gpointer
test_win32window_resize_thr1 (gpointer data)
{
gint i;
const gint NUM_REPETITIONS = 150;
GThread *thr = g_thread_new (NULL,
test_win32window_resize_thr2, NULL);
for (i = 0; i < NUM_REPETITIONS; i++) {
gst_element_set_state (fixture.pipeline, GST_STATE_PLAYING);
/* Pause in playback */
fixture_sleep_approx_ms (500);
if (0 == i % 4) {
GST_DEBUG ("Scheduling pipeline restart from the window thread");
PostMessageA (fixture.hwnd, WM_FIXTURE_RESTART, 0, 0);
fixture_sleep_approx_ms (500);
}
if (0 == i % 5) {
GST_DEBUG ("Scheduling pipeline restart blocking the window thread");
PostMessageA (fixture.hwnd, WM_FIXTURE_TRICKY_RESTART, 0, 0);
fixture_sleep_approx_ms (500);
}
gst_element_set_state (fixture.pipeline, GST_STATE_NULL);
/* Pause without playback */
fixture_sleep_approx_ms (100);
}
fixture.stopping = TRUE;
g_thread_join (thr);
GST_INFO ("Closing the window");
PostMessageA (fixture.hwnd, WM_CLOSE, 0, 0);
return NULL;
}
static GstBusSyncReply
test_win32window_bus_sync_handle (GstBus * bus,
GstMessage * message, gpointer data)
{
if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT ||
!gst_is_video_overlay_prepare_window_handle_message (message)) {
return GST_BUS_PASS;
}
gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY
(GST_MESSAGE_SRC (message)), (guintptr) fixture.hwnd);
fixture.ever_started = TRUE;
return GST_BUS_DROP;
}
GST_START_TEST (test_win32window_resize)
{
GstBus *bus;
GThread *thr;
GST_INFO ("Start resising test");
test_win32window_create_window ();
fixture.pipeline =
gst_parse_launch
("videotestsrc ! video/x-raw, width=128, height=128 ! d3d11videosink sync=false",
NULL);
bus = gst_element_get_bus (fixture.pipeline);
gst_bus_set_sync_handler (bus, test_win32window_bus_sync_handle, NULL, NULL);
gst_object_unref (bus);
bus = NULL;
ShowWindow (fixture.hwnd, SW_SHOW);
UpdateWindow (fixture.hwnd);
thr = g_thread_new (NULL, test_win32window_resize_thr1, NULL);
test_win32window_msg_loop ();
g_thread_join (thr);
gst_object_unref (fixture.pipeline);
fixture.hwnd = NULL;
fail_unless (fixture.ever_started, "videosink didn't request window handle,"
"probably it couldn't start");
GST_INFO ("resising test ok");
}
GST_END_TEST;
static Suite *
d3d11videosink_suite (void)
{
Suite *s = suite_create ("d3d11videosink");
TCase *tc_basic = tcase_create ("general");
suite_add_tcase (s, tc_basic);
tcase_add_test (tc_basic, test_win32window_resize);
return s;
}
GST_CHECK_MAIN (d3d11videosink);