static void
window_resize (GstGLWindowDispmanxEGL * window_egl, guint width, guint height)
{
GST_DEBUG ("resizing window from %ux%u to %ux%u",
window_egl->native.width, window_egl->native.height, width, height);
if (window_egl->display) {
VC_RECT_T dst_rect;
VC_RECT_T src_rect;
GstVideoRectangle src, dst, res;
DISPMANX_UPDATE_HANDLE_T dispman_update;
VC_DISPMANX_ALPHA_T alpha =
{ DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS, 255, 0 };
/* Center width*height frame inside dp_width*dp_height */
src.w = width;
src.h = height;
src.x = src.y = 0;
dst.w = window_egl->dp_width;
dst.h = window_egl->dp_height;
dst.x = dst.y = 0;
gst_video_sink_center_rect (src, dst, &res, FALSE);
dst_rect.x = res.x;
dst_rect.y = res.y;
dst_rect.width = res.w;
dst_rect.height = res.h;
src_rect.x = 0;
src_rect.y = 0;
src_rect.width = width << 16;
src_rect.height = height << 16;
dispman_update = vc_dispmanx_update_start (0);
if (window_egl->native.element) {
vc_dispmanx_element_change_attributes (dispman_update,
window_egl->native.element, 0x00000110, 0, 0, &dst_rect, &src_rect, 0,
0);
} else {
window_egl->native.element = vc_dispmanx_element_add (dispman_update,
window_egl->display, 0, &dst_rect, 0, &src_rect,
DISPMANX_PROTECTION_NONE, &alpha, 0, 0);
}
vc_dispmanx_update_submit_sync (dispman_update);
if (GST_GL_WINDOW (window_egl)->resize)
GST_GL_WINDOW (window_egl)->
resize (GST_GL_WINDOW (window_egl)->resize_data, width, height);
}
window_egl->native.width = width;
window_egl->native.height = height;
}
/**
* gst_gl_window_new:
* @display: a #GstGLDisplay
*
* Returns: (transfer full): a new #GstGLWindow using @display's connection
*/
GstGLWindow *
gst_gl_window_new (GstGLDisplay * display)
{
GstGLWindow *window = NULL;
const gchar *user_choice;
static volatile gsize _init = 0;
g_return_val_if_fail (display != NULL, NULL);
if (g_once_init_enter (&_init)) {
GST_DEBUG_CATEGORY_INIT (gst_gl_window_debug, "glwindow", 0,
"glwindow element");
g_once_init_leave (&_init, 1);
}
user_choice = g_getenv ("GST_GL_WINDOW");
GST_INFO ("creating a window, user choice:%s", user_choice);
#if GST_GL_HAVE_WINDOW_COCOA
if (!window && (!user_choice || g_strstr_len (user_choice, 5, "cocoa")))
window = GST_GL_WINDOW (gst_gl_window_cocoa_new ());
#endif
#if GST_GL_HAVE_WINDOW_X11
if (!window && (!user_choice || g_strstr_len (user_choice, 3, "x11")))
window = GST_GL_WINDOW (gst_gl_window_x11_new (display));
#endif
#if GST_GL_HAVE_WINDOW_WIN32
if (!window && (!user_choice || g_strstr_len (user_choice, 5, "win32")))
window = GST_GL_WINDOW (gst_gl_window_win32_new ());
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND
if (!window && (!user_choice || g_strstr_len (user_choice, 7, "wayland")))
window = GST_GL_WINDOW (gst_gl_window_wayland_egl_new ());
#endif
#if GST_GL_HAVE_WINDOW_DISPMANX
if (!window && (!user_choice || g_strstr_len (user_choice, 8, "dispmanx")))
window = GST_GL_WINDOW (gst_gl_window_dispmanx_egl_new ());
#endif
#if GST_GL_HAVE_WINDOW_ANDROID
if (!window && (!user_choice || g_strstr_len (user_choice, 7, "android")))
window = GST_GL_WINDOW (gst_gl_window_android_egl_new ());
#endif
#if GST_GL_HAVE_WINDOW_EAGL
if (!window && (!user_choice || g_strstr_len (user_choice, 4, "eagl")))
window = GST_GL_WINDOW (gst_gl_window_eagl_new ());
#endif
if (!window) {
/* subclass returned a NULL window */
GST_WARNING ("Could not create window. user specified %s, creating dummy"
" window", user_choice ? user_choice : "(null)");
window = GST_GL_WINDOW (gst_gl_dummy_window_new ());
}
window->display = gst_object_ref (display);
return window;
}
static void
gst_gl_window_finalize (GObject * object)
{
GstGLWindow *window = GST_GL_WINDOW (object);
GstGLWindowPrivate *priv = window->priv;
GST_INFO ("quit navigation loop");
if (window->priv->navigation_loop) {
g_main_loop_quit (window->priv->navigation_loop);
/* wait until navigation thread finished */
g_thread_join (window->priv->navigation_thread);
window->priv->navigation_thread = NULL;
}
if (priv->loop)
g_main_loop_unref (priv->loop);
if (priv->main_context)
g_main_context_unref (priv->main_context);
g_weak_ref_clear (&window->context_ref);
g_mutex_clear (&window->lock);
g_mutex_clear (&window->priv->nav_lock);
g_cond_clear (&window->priv->nav_create_cond);
g_mutex_clear (&window->priv->sync_message_lock);
g_cond_clear (&window->priv->sync_message_cond);
gst_object_unref (window->display);
G_OBJECT_CLASS (gst_gl_window_parent_class)->finalize (object);
}
static void
draw_cb (gpointer data)
{
GstGLWindowAndroidEGL *window_egl = data;
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GstGLContext *context = gst_gl_window_get_context (window);
GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
if (context_egl->egl_surface) {
gint width, height;
if (eglQuerySurface (context_egl->egl_display,
context_egl->egl_surface, EGL_WIDTH, &width) &&
eglQuerySurface (context_egl->egl_display,
context_egl->egl_surface, EGL_HEIGHT, &height)
&& (width != window_egl->window_width
|| height != window_egl->window_height)) {
window_egl->window_width = width;
window_egl->window_height = height;
if (window->resize)
window->resize (window->resize_data, width, height);
}
}
if (window->draw)
window->draw (window->draw_data);
context_class->swap_buffers (context);
gst_object_unref (context);
}
static void
draw_cb (gpointer data)
{
GstGLWindowWaylandEGL *window_egl = data;
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GstGLContext *context = gst_gl_window_get_context (window);
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
create_surfaces (window_egl);
if (window_egl->window.subsurface)
wl_subsurface_set_desync (window_egl->window.subsurface);
if (window->queue_resize) {
guint width, height;
gst_gl_window_get_surface_dimensions (window, &width, &height);
gst_gl_window_resize (window, width, height);
}
if (window->draw)
window->draw (window->draw_data);
context_class->swap_buffers (context);
if (window_egl->window.subsurface)
wl_subsurface_set_desync (window_egl->window.subsurface);
gst_object_unref (context);
}
static void
gst_gl_window_finalize (GObject * object)
{
GstGLWindow *window = GST_GL_WINDOW (object);
g_weak_ref_clear (&window->context_ref);
g_mutex_clear (&window->lock);
gst_object_unref (window->display);
G_OBJECT_CLASS (gst_gl_window_parent_class)->finalize (object);
}
static gboolean
gst_gl_window_key_event_cb (gpointer data)
{
KeyEventData *key_data = data;
GST_DEBUG
("%s called data struct %p window %p key %s event %s ",
__func__, key_data, key_data->window, key_data->key_str,
key_data->event_type);
gst_gl_window_send_key_event (GST_GL_WINDOW (key_data->window),
key_data->event_type, key_data->key_str);
return G_SOURCE_REMOVE;
}
static void
draw_cb (gpointer data)
{
GstGLWindowWaylandEGL *window_egl = data;
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GstGLContext *context = gst_gl_window_get_context (window);
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
if (window->draw)
window->draw (window->draw_data);
context_class->swap_buffers (context);
gst_object_unref (context);
}
static gboolean
gst_gl_window_mouse_event_cb (gpointer data)
{
MouseEventData *mouse_data = data;
GST_DEBUG ("%s called data struct %p mouse event %s button %d at %g, %g",
__func__, mouse_data, mouse_data->event_type, mouse_data->button,
mouse_data->posx, mouse_data->posy);
gst_gl_window_send_mouse_event (GST_GL_WINDOW (mouse_data->window),
mouse_data->event_type, mouse_data->button, mouse_data->posx,
mouse_data->posy);
return G_SOURCE_REMOVE;
}
static void
draw_cb (gpointer data)
{
struct draw *draw_data = data;
GstGLDummyWindow *dummy = draw_data->window;
GstGLWindow *window = GST_GL_WINDOW (dummy);
GstGLContext *context = gst_gl_window_get_context (window);
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
if (window->draw)
window->draw (window->draw_data);
context_class->swap_buffers (context);
gst_object_unref (context);
}
static void
window_resize (GstGLWindowWaylandEGL * window_egl, guint width, guint height)
{
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GST_DEBUG ("resizing window from %ux%u to %ux%u",
window_egl->window.window_width, window_egl->window.window_height, width,
height);
if (window_egl->window.native) {
wl_egl_window_resize (window_egl->window.native, width, height, 0, 0);
}
gst_gl_window_resize (window, width, height);
window_egl->window.window_width = width;
window_egl->window.window_height = height;
}
GstGLContext *
gst_gl_context_gpu_process_new (GstGLDisplay * display,
GstGLAPI gl_api, GstGLProcAddrFunc proc_addr)
{
GstGLContext *context = NULL;
GstGLContextGPUProcess *gpu_context = NULL;
GstGLContextClass *context_class = NULL;
GstGLWindow *window = NULL;
GError *error = NULL;
g_return_val_if_fail ((gst_gl_display_get_gl_api (display) & gl_api) !=
GST_GL_API_NONE, NULL);
gpu_context = g_object_new (GST_GL_TYPE_CONTEXT_GPU_PROCESS, NULL);
gpu_context->priv->gl_api = gl_api;
context = GST_GL_CONTEXT (gpu_context);
context->display = display;
gst_gl_display_add_context (display, context);
context_class = GST_GL_CONTEXT_GET_CLASS (context);
context_class->get_current_context = NULL;
context_class->get_proc_address = GST_DEBUG_FUNCPTR (proc_addr);
gst_gl_context_activate (context, TRUE);
gst_gl_context_fill_info (context, &error);
if (error) {
GST_ERROR_OBJECT (context, "Failed to create gpu process context: %s",
error->message);
g_error_free (error);
gst_object_unref (context);
return NULL;
}
window = GST_GL_WINDOW (gst_gl_window_gpu_process_new (display));
gst_gl_context_set_window (context, window);
GST_GL_WINDOW_GET_CLASS (window)->open (window, NULL);
gst_object_unref (window);
return context;
}
static void
gst_gl_window_finalize (GObject * object)
{
GstGLWindow *window = GST_GL_WINDOW (object);
GstGLWindowPrivate *priv = window->priv;
if (priv->loop)
g_main_loop_unref (priv->loop);
if (priv->main_context)
g_main_context_unref (priv->main_context);
g_weak_ref_clear (&window->context_ref);
g_mutex_clear (&window->lock);
g_mutex_clear (&window->priv->sync_message_lock);
g_cond_clear (&window->priv->sync_message_cond);
gst_object_unref (window->display);
G_OBJECT_CLASS (gst_gl_window_parent_class)->finalize (object);
}
static void
gst_gl_window_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstGLWindow *window;
GstGLWindowPrivate *priv;
g_return_if_fail (GST_GL_IS_WINDOW (object));
window = GST_GL_WINDOW (object);
priv = window->priv;
switch (prop_id) {
case ARG_DISPLAY:
g_value_set_string (value, priv->display_name);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
draw_cb (gpointer data)
{
GstGLWindow *window = GST_GL_WINDOW (data);
GstGLContext *context = gst_gl_window_get_context (window);
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
if (window->queue_resize) {
guint width, height;
gst_gl_window_get_surface_dimensions (window, &width, &height);
gst_gl_window_resize (window, width, height);
}
if (window->draw)
window->draw (window->draw_data);
if (context_class->swap_buffers)
context_class->swap_buffers (context);
gst_object_unref (context);
}
static void
draw_cb (gpointer data)
{
GstGLWindowDispmanxEGL *window_egl = data;
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GstGLContext *context = gst_gl_window_get_context (window);
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
if (window_egl->native.width != window_egl->preferred_width
|| window_egl->native.height != window_egl->preferred_height) {
GST_DEBUG ("dimensions don't match, attempting resize");
window_resize (window_egl, window_egl->preferred_width,
window_egl->preferred_height);
}
if (window->draw)
window->draw (window->draw_data);
context_class->swap_buffers (context);
gst_object_unref (context);
}
/**
* gst_gl_window_new:
* @display: a #GstGLDisplay
*
* Returns: (transfer full): a new #GstGLWindow using @display's connection
*
* Since: 1.4
*/
GstGLWindow *
gst_gl_window_new (GstGLDisplay * display)
{
GstGLWindow *window = NULL;
const gchar *user_choice;
g_return_val_if_fail (display != NULL, NULL);
_init_debug ();
user_choice = g_getenv ("GST_GL_WINDOW");
GST_INFO ("creating a window, user choice:%s", user_choice);
#if GST_GL_HAVE_WINDOW_COCOA
if (!window && (!user_choice || g_strstr_len (user_choice, 5, "cocoa")))
window = GST_GL_WINDOW (gst_gl_window_cocoa_new (display));
#endif
#if GST_GL_HAVE_WINDOW_X11
if (!window && (!user_choice || g_strstr_len (user_choice, 3, "x11")))
window = GST_GL_WINDOW (gst_gl_window_x11_new (display));
#endif
#if GST_GL_HAVE_WINDOW_WIN32
if (!window && (!user_choice || g_strstr_len (user_choice, 5, "win32")))
window = GST_GL_WINDOW (gst_gl_window_win32_new (display));
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND
if (!window && (!user_choice || g_strstr_len (user_choice, 7, "wayland")))
window = GST_GL_WINDOW (gst_gl_window_wayland_egl_new (display));
#endif
#if GST_GL_HAVE_WINDOW_DISPMANX
if (!window && (!user_choice || g_strstr_len (user_choice, 8, "dispmanx")))
window = GST_GL_WINDOW (gst_gl_window_dispmanx_egl_new (display));
#endif
#if GST_GL_HAVE_WINDOW_ANDROID
if (!window && (!user_choice || g_strstr_len (user_choice, 7, "android")))
window = GST_GL_WINDOW (gst_gl_window_android_egl_new (display));
#endif
#if GST_GL_HAVE_WINDOW_EAGL
if (!window && (!user_choice || g_strstr_len (user_choice, 4, "eagl")))
window = GST_GL_WINDOW (gst_gl_window_eagl_new (display));
#endif
if (!window) {
/* subclass returned a NULL window */
GST_WARNING ("Could not create window. user specified %s, creating dummy"
" window", user_choice ? user_choice : "(null)");
window = GST_GL_WINDOW (gst_gl_dummy_window_new ());
}
window->display = gst_object_ref (display);
g_mutex_lock (&window->priv->nav_lock);
window->priv->navigation_thread = g_thread_new ("gstglnavigation",
(GThreadFunc) gst_gl_window_navigation_thread, window);
while (!window->priv->nav_alive)
g_cond_wait (&window->priv->nav_create_cond, &window->priv->nav_lock);
g_mutex_unlock (&window->priv->nav_lock);
return window;
}
static void
create_surfaces (GstGLWindowWaylandEGL * window_egl)
{
GstGLDisplayWayland *display =
GST_GL_DISPLAY_WAYLAND (GST_GL_WINDOW (window_egl)->display);
gint width, height;
if (!window_egl->window.surface) {
window_egl->window.surface =
wl_compositor_create_surface (display->compositor);
if (window_egl->window.queue)
wl_proxy_set_queue ((struct wl_proxy *) window_egl->window.surface,
window_egl->window.queue);
}
if (window_egl->window.foreign_surface) {
/* (re)parent */
if (!display->subcompositor) {
GST_ERROR_OBJECT (window_egl,
"Wayland server does not support subsurfaces");
window_egl->window.foreign_surface = NULL;
goto shell_window;
}
if (!window_egl->window.subsurface) {
window_egl->window.subsurface =
wl_subcompositor_get_subsurface (display->subcompositor,
window_egl->window.surface, window_egl->window.foreign_surface);
if (window_egl->window.queue)
wl_proxy_set_queue ((struct wl_proxy *) window_egl->window.subsurface,
window_egl->window.queue);
wl_subsurface_set_position (window_egl->window.subsurface,
window_egl->window.window_x, window_egl->window.window_y);
wl_subsurface_set_desync (window_egl->window.subsurface);
}
} else {
shell_window:
if (!window_egl->window.shell_surface) {
window_egl->window.shell_surface =
wl_shell_get_shell_surface (display->shell,
window_egl->window.surface);
if (window_egl->window.queue)
wl_proxy_set_queue ((struct wl_proxy *) window_egl->window.
shell_surface, window_egl->window.queue);
wl_shell_surface_add_listener (window_egl->window.shell_surface,
&shell_surface_listener, window_egl);
wl_shell_surface_set_title (window_egl->window.shell_surface,
"OpenGL Renderer");
wl_shell_surface_set_toplevel (window_egl->window.shell_surface);
}
}
if (window_egl->window.window_width > 0)
width = window_egl->window.window_width;
else
width = 320;
window_egl->window.window_width = width;
if (window_egl->window.window_height > 0)
height = window_egl->window.window_height;
else
height = 240;
window_egl->window.window_height = height;
if (!window_egl->window.native) {
gst_gl_window_resize (GST_GL_WINDOW (window_egl), width, height);
window_egl->window.native =
wl_egl_window_create (window_egl->window.surface, width, height);
if (window_egl->window.queue)
wl_proxy_set_queue ((struct wl_proxy *) window_egl->window.native,
window_egl->window.queue);
}
}
/* Must be called in the gl thread */
static void
gst_gl_window_finalize (GObject * object)
{
GstGLWindow *window = GST_GL_WINDOW (object);
GstGLWindowPrivate *priv = window->priv;
XEvent event;
Bool ret = TRUE;
g_mutex_lock (priv->x_lock);
priv->parent = 0;
XUnmapWindow (priv->device, priv->internal_win_id);
ret =
eglMakeCurrent (priv->device, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
if (!ret)
g_debug ("failed to release opengl context\n");
eglDestroyContext (priv->device, priv->gl_context);
eglTerminate (priv->device);
XFree (priv->visual_info);
XReparentWindow (priv->device, priv->internal_win_id, priv->root, 0, 0);
XDestroyWindow (priv->device, priv->internal_win_id);
XSync (priv->device, FALSE);
while (XPending (priv->device))
XNextEvent (priv->device, &event);
XSetCloseDownMode (priv->device, DestroyAll);
/*XAddToSaveSet (display, w)
Display *display;
Window w; */
//FIXME: it seems it causes destroy all created windows, even by other display connection:
//This is case in: gst-launch-0.10 videotestsrc ! tee name=t t. ! queue ! glimagesink t. ! queue ! glimagesink
//When the first window is closed and so its display is closed by the following line, then the other Window managed by the
//other glimagesink, is not useable and so each opengl call causes a segmentation fault.
//Maybe the solution is to use: XAddToSaveSet
//The following line is commented to avoid the disagreement explained before.
//XCloseDisplay (priv->device);
g_debug ("display receiver closed\n");
XCloseDisplay (priv->disp_send);
g_debug ("display sender closed\n");
if (priv->cond_send_message) {
g_cond_free (priv->cond_send_message);
priv->cond_send_message = NULL;
}
g_mutex_unlock (priv->x_lock);
if (priv->x_lock) {
g_mutex_free (priv->x_lock);
priv->x_lock = NULL;
}
G_OBJECT_CLASS (gst_gl_window_parent_class)->finalize (object);
}
LRESULT CALLBACK
window_proc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
GstGLWindowWin32 *window_win32;
LRESULT ret = 0;
if (uMsg == WM_CREATE) {
window_win32 =
GST_GL_WINDOW_WIN32 (((LPCREATESTRUCT) lParam)->lpCreateParams);
GST_TRACE ("WM_CREATE");
window_win32->device = GetDC (hWnd);
/* Do this, otherwise we hang on exit. We can still use it (due to the
* CS_OWNDC flag in the WindowClass) after we have Released.
*/
ReleaseDC (hWnd, window_win32->device);
SetProp (hWnd, "gl_window", window_win32);
} else if (GetProp (hWnd, "gl_window")) {
GstGLWindow *window;
GstGLContext *context;
GstGLContextClass *context_class;
window_win32 = GST_GL_WINDOW_WIN32 (GetProp (hWnd, "gl_window"));
window = GST_GL_WINDOW (window_win32);
context = gst_gl_window_get_context (window);
context_class = GST_GL_CONTEXT_GET_CLASS (context);
g_assert (window_win32->internal_win_id == hWnd);
switch (uMsg) {
case WM_SIZE:
{
if (window->resize) {
window->resize (window->resize_data, LOWORD (lParam),
HIWORD (lParam));
}
break;
}
case WM_PAINT:
{
if (window->draw) {
PAINTSTRUCT ps;
BeginPaint (hWnd, &ps);
window->draw (window->draw_data);
context_class->swap_buffers (context);
EndPaint (hWnd, &ps);
}
break;
}
case WM_CLOSE:
{
ShowWindowAsync (window_win32->internal_win_id, SW_HIDE);
GST_TRACE ("WM_CLOSE");
if (window->close)
window->close (window->close_data);
break;
}
case WM_CAPTURECHANGED:
{
GST_DEBUG ("WM_CAPTURECHANGED");
if (window->draw)
window->draw (window->draw_data);
break;
}
case WM_ERASEBKGND:
{
ret = TRUE;
break;
}
default:
{
/* transmit messages to the parrent (ex: mouse/keyboard input) */
HWND parent_id = window_win32->parent_win_id;
if (parent_id)
PostMessage (parent_id, uMsg, wParam, lParam);
ret = DefWindowProc (hWnd, uMsg, wParam, lParam);
}
}
gst_object_unref (context);
} else {
ret = DefWindowProc (hWnd, uMsg, wParam, lParam);
}
return ret;
}
static void
window_resize (GstGLWindowDispmanxEGL * window_egl, guint width, guint height,
gboolean visible)
{
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GST_DEBUG ("resizing %s window from %ux%u to %ux%u",
visible ? "visible" : "invisible", window_egl->native.width,
window_egl->native.height, width, height);
if (window_egl->display) {
VC_RECT_T dst_rect;
VC_RECT_T src_rect;
GstVideoRectangle src, res;
DISPMANX_UPDATE_HANDLE_T dispman_update;
uint32_t opacity = visible ? 255 : 0;
VC_DISPMANX_ALPHA_T alpha =
{ DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS, opacity, 0 };
src.w = width;
src.h = height;
src.x = src.y = 0;
/* If there is no render rectangle, center the width*height frame
* inside dp_width*dp_height */
if (window_egl->render_rect.w <= 0 || window_egl->render_rect.h <= 0) {
GstVideoRectangle dst;
dst.w = window_egl->dp_width;
dst.h = window_egl->dp_height;
dst.x = dst.y = 0;
gst_video_sink_center_rect (src, dst, &res, FALSE);
} else {
gst_video_sink_center_rect (src, window_egl->render_rect, &res, FALSE);
}
dst_rect.x = res.x;
dst_rect.y = res.y;
dst_rect.width = res.w;
dst_rect.height = res.h;
src_rect.x = 0;
src_rect.y = 0;
src_rect.width = width << 16;
src_rect.height = height << 16;
dispman_update = vc_dispmanx_update_start (0);
if (window_egl->native.element) {
uint32_t change_flags =
ELEMENT_CHANGE_OPACITY | ELEMENT_CHANGE_DEST_RECT |
ELEMENT_CHANGE_SRC_RECT;
vc_dispmanx_element_change_attributes (dispman_update,
window_egl->native.element, change_flags, 0, opacity, &dst_rect,
&src_rect, 0, 0);
} else {
window_egl->native.element = vc_dispmanx_element_add (dispman_update,
window_egl->display, 0, &dst_rect, 0, &src_rect,
DISPMANX_PROTECTION_NONE, &alpha, 0, 0);
}
vc_dispmanx_update_submit_sync (dispman_update);
gst_gl_window_resize (window, width, height);
}
window_egl->native.width = width;
window_egl->native.height = height;
}
LRESULT CALLBACK
window_proc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
GstGLWindowWin32 *window_win32;
if (uMsg == WM_CREATE) {
window_win32 =
GST_GL_WINDOW_WIN32 (((LPCREATESTRUCT) lParam)->lpCreateParams);
GST_TRACE ("WM_CREATE");
window_win32->device = GetDC (hWnd);
/* Do this, otherwise we hang on exit. We can still use it (due to the
* CS_OWNDC flag in the WindowClass) after we have Released.
*/
ReleaseDC (hWnd, window_win32->device);
SetProp (hWnd, "gl_window", window_win32);
return 0;
} else if (GetProp (hWnd, "gl_window")) {
GstGLWindow *window;
GstGLContext *context;
GstGLContextClass *context_class;
window_win32 = GST_GL_WINDOW_WIN32 (GetProp (hWnd, "gl_window"));
window = GST_GL_WINDOW (window_win32);
context = gst_gl_window_get_context (window);
context_class = GST_GL_CONTEXT_GET_CLASS (context);
g_assert (window_win32->internal_win_id == hWnd);
switch (uMsg) {
case WM_SIZE:
{
if (window->resize) {
window->resize (window->resize_data, LOWORD (lParam),
HIWORD (lParam));
}
break;
}
case WM_PAINT:
{
if (window->draw) {
PAINTSTRUCT ps;
BeginPaint (hWnd, &ps);
window->draw (window->draw_data);
context_class->swap_buffers (context);
EndPaint (hWnd, &ps);
}
break;
}
case WM_CLOSE:
{
ShowWindowAsync (window_win32->internal_win_id, SW_HIDE);
GST_TRACE ("WM_CLOSE");
if (window->close)
window->close (window->close_data);
break;
}
case WM_GST_GL_WINDOW_QUIT:
{
HWND parent_id = 0;
GST_TRACE ("WM_GST_GL_WINDOW_QUIT");
parent_id = window_win32->parent_win_id;
if (parent_id) {
WNDPROC parent_proc = GetProp (parent_id, "gl_window_parent_proc");
g_assert (parent_proc);
SetWindowLongPtr (parent_id, GWLP_WNDPROC, (LONG_PTR) parent_proc);
SetParent (hWnd, NULL);
RemoveProp (parent_id, "gl_window_parent_proc");
}
window_win32->is_closed = TRUE;
RemoveProp (hWnd, "gl_window");
if (window_win32->internal_win_id) {
if (!DestroyWindow (window_win32->internal_win_id))
GST_WARNING ("failed to destroy window %" G_GUINTPTR_FORMAT
", 0x%x", (guintptr) hWnd, (unsigned int) GetLastError ());
}
PostQuitMessage (0);
break;
}
case WM_CAPTURECHANGED:
{
GST_DEBUG ("WM_CAPTURECHANGED");
if (window->draw)
window->draw (window->draw_data);
break;
}
case WM_GST_GL_WINDOW_CUSTOM:
{
if (!window_win32->is_closed) {
GstGLMessage *message = (GstGLMessage *) wParam;
_run_message (message);
}
break;
}
case WM_ERASEBKGND:
return TRUE;
default:
{
/* transmit messages to the parrent (ex: mouse/keyboard input) */
HWND parent_id = window_win32->parent_win_id;
if (parent_id)
PostMessage (parent_id, uMsg, wParam, lParam);
return DefWindowProc (hWnd, uMsg, wParam, lParam);
}
}
gst_object_unref (context);
return 0;
} else {
return DefWindowProc (hWnd, uMsg, wParam, lParam);
}
}
