void
gst_gl_window_activate_gl_context (GstGLWindow * window, gboolean activate)
{
  GstGLWindowPrivate *priv = window->priv;
  if (activate)
    gst_gl_window_send_message (window,
        GST_GL_WINDOW_CB (callback_activate_gl_context), priv);
  else
    gst_gl_window_send_message (window,
        GST_GL_WINDOW_CB (callback_inactivate_gl_context), priv);
}
static gboolean
gst_glimage_sink_redisplay (GstGLImageSink * gl_sink)
{
  GstGLWindow *window;
  gboolean alive;

  window = gst_gl_context_get_window (gl_sink->context);

  if (window && gst_gl_window_is_running (window)) {

#if GST_GL_HAVE_GLES2
    if (USING_GLES2 (gl_sink->context)) {
      if (!gl_sink->redisplay_shader) {
        gst_gl_window_send_message (window,
            GST_GL_WINDOW_CB (gst_glimage_sink_thread_init_redisplay), gl_sink);
      }
    }
#endif

    /* Drawing is asynchrone: gst_gl_window_draw is not blocking
     * It means that it does not wait for stuff being executed in other threads
     */
    gst_gl_window_draw (window, GST_VIDEO_SINK_WIDTH (gl_sink),
        GST_VIDEO_SINK_HEIGHT (gl_sink));
  }
  alive = gst_gl_window_is_running (window);
  gst_object_unref (window);

  return alive;
}
/**
 * gst_gl_context_thread_add:
 * @context: a #GstGLContext
 * @func: a #GstGLContextThreadFunc
 * @data: (closure): user data to call @func with
 *
 * Execute @func in the OpenGL thread of @context with @data
 *
 * MT-safe
 *
 * Since: 1.4
 */
void
gst_gl_context_thread_add (GstGLContext * context,
    GstGLContextThreadFunc func, gpointer data)
{
  GstGLWindow *window;
  RunGenericData rdata;

  g_return_if_fail (GST_IS_GL_CONTEXT (context));
  g_return_if_fail (func != NULL);

  if (GST_IS_GL_WRAPPED_CONTEXT (context)) {
    g_return_if_fail (context->priv->active_thread == g_thread_self ());
    func (context, data);
    return;
  }

  rdata.context = context;
  rdata.data = data;
  rdata.func = func;

  window = gst_gl_context_get_window (context);

  gst_gl_window_send_message (window,
      GST_GL_WINDOW_CB (_gst_gl_context_thread_run_generic), &rdata);

  gst_object_unref (window);
}
static void
gst_gl_window_android_egl_draw (GstGLWindow * window, guint width, guint height)
{
  struct draw draw_data;

  draw_data.window = GST_GL_WINDOW_ANDROID_EGL (window);
  draw_data.width = width;
  draw_data.height = height;

  gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, &draw_data);
}
static void
gst_gl_dummy_window_draw (GstGLWindow * window, guint width, guint height)
{
  struct draw draw_data;

  draw_data.window = (GstGLDummyWindow *) window;
  draw_data.width = width;
  draw_data.height = height;

  gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, &draw_data);
}
Exemple #6
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void
gst_gl_window_resize (GstGLWindow * window, guint width, guint height)
{
  g_return_if_fail (GST_IS_GL_WINDOW (window));

  if (window->resize) {
    struct resize_data resize = { 0, };

    resize.window = window;
    resize.width = width;
    resize.height = height;

    gst_gl_window_send_message (window, (GstGLWindowCB) _on_resize, &resize);
  }

  window->priv->surface_width = width;
  window->priv->surface_height = height;

  window->queue_resize = FALSE;
}
static gboolean
gst_glimage_sink_redisplay (GstGLImageSink * gl_sink)
{
  GstGLWindow *window;
  gboolean alive;

  window = gst_gl_context_get_window (gl_sink->context);
  if (!window)
    return FALSE;

  if (gst_gl_window_is_running (window)) {

#if GST_GL_HAVE_GLES2
    if (USING_GLES2 (gl_sink->context)) {
      if (G_UNLIKELY (!gl_sink->redisplay_shader)) {
        gst_gl_window_send_message (window,
            GST_GL_WINDOW_CB (gst_glimage_sink_thread_init_redisplay), gl_sink);

        /* if the shader is still null it means it failed to be useable */
        if (G_UNLIKELY (!gl_sink->redisplay_shader)) {
          gst_object_unref (window);
          return FALSE;
        }
      }
    }
#endif

    /* Drawing is asynchronous: gst_gl_window_draw is not blocking
     * It means that it does not wait for stuff to be executed in other threads
     */
    gst_gl_window_draw (window, GST_VIDEO_SINK_WIDTH (gl_sink),
        GST_VIDEO_SINK_HEIGHT (gl_sink));
  }
  alive = gst_gl_window_is_running (window);
  gst_object_unref (window);

  return alive;
}
static GstStateChangeReturn
gst_glimage_sink_change_state (GstElement * element, GstStateChange transition)
{
  GstGLImageSink *glimage_sink;
  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;

  GST_DEBUG ("change state");

  glimage_sink = GST_GLIMAGE_SINK (element);

  switch (transition) {
    case GST_STATE_CHANGE_NULL_TO_READY:
      break;
    case GST_STATE_CHANGE_READY_TO_PAUSED:
      g_atomic_int_set (&glimage_sink->to_quit, 0);
      if (!glimage_sink->display) {
        GstGLWindow *window;
        GError *error = NULL;

        if (!gst_gl_ensure_display (glimage_sink, &glimage_sink->display))
          return GST_STATE_CHANGE_FAILURE;

        glimage_sink->context = gst_gl_context_new (glimage_sink->display);
        window = gst_gl_context_get_window (glimage_sink->context);

        if (!glimage_sink->window_id && !glimage_sink->new_window_id)
          gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY
              (glimage_sink));

        if (glimage_sink->window_id != glimage_sink->new_window_id) {
          glimage_sink->window_id = glimage_sink->new_window_id;
          gst_gl_window_set_window_handle (window, glimage_sink->window_id);
        }

        if (!gst_gl_context_create (glimage_sink->context,
                glimage_sink->other_context, &error)) {
          GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s",
                  error->message), (NULL));

          if (glimage_sink->display) {
            gst_object_unref (glimage_sink->display);
            glimage_sink->display = NULL;
          }
          gst_object_unref (glimage_sink->context);
          gst_object_unref (window);

          return GST_STATE_CHANGE_FAILURE;
        }

        /* setup callbacks */
        gst_gl_window_set_resize_callback (window,
            GST_GL_WINDOW_RESIZE_CB (gst_glimage_sink_on_resize),
            gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref);
        gst_gl_window_set_draw_callback (window,
            GST_GL_WINDOW_CB (gst_glimage_sink_on_draw),
            gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref);
        gst_gl_window_set_close_callback (window,
            GST_GL_WINDOW_CB (gst_glimage_sink_on_close),
            gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref);

        gst_object_unref (window);
      }
      break;
    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
      break;
    default:
      break;
  }

  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
  if (ret == GST_STATE_CHANGE_FAILURE)
    return ret;

  switch (transition) {
    case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
      break;
    case GST_STATE_CHANGE_PAUSED_TO_READY:
    {
      /* mark the redisplay_texture as unavailable (=0)
       * to avoid drawing
       */
      GST_GLIMAGE_SINK_LOCK (glimage_sink);
      glimage_sink->redisplay_texture = 0;
      GST_GLIMAGE_SINK_UNLOCK (glimage_sink);

      if (glimage_sink->upload) {
        gst_object_unref (glimage_sink->upload);
        glimage_sink->upload = NULL;
      }

      glimage_sink->window_id = 0;
      //but do not reset glimage_sink->new_window_id

      if (glimage_sink->pool) {
        gst_buffer_pool_set_active (glimage_sink->pool, FALSE);
        gst_object_unref (glimage_sink->pool);
        glimage_sink->pool = NULL;
      }

      GST_VIDEO_SINK_WIDTH (glimage_sink) = 1;
      GST_VIDEO_SINK_HEIGHT (glimage_sink) = 1;
      if (glimage_sink->context) {
        GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context);

        gst_gl_window_send_message (window,
            GST_GL_WINDOW_CB (gst_glimage_sink_cleanup_glthread), glimage_sink);

        gst_gl_window_set_resize_callback (window, NULL, NULL, NULL);
        gst_gl_window_set_draw_callback (window, NULL, NULL, NULL);
        gst_gl_window_set_close_callback (window, NULL, NULL, NULL);

        gst_object_unref (window);
        gst_object_unref (glimage_sink->context);
        glimage_sink->context = NULL;
        gst_object_unref (glimage_sink->display);
        glimage_sink->display = NULL;
      }
      break;
    }
    case GST_STATE_CHANGE_READY_TO_NULL:
      break;
    default:
      break;
  }

  return ret;
}
static void
gst_gl_window_wayland_egl_draw (GstGLWindow * window)
{
  gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window);
}
Exemple #10
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static void
gst_gl_window_default_draw (GstGLWindow * window)
{
  gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window);
}
static GstStateChangeReturn
gst_glimage_sink_change_state (GstElement * element, GstStateChange transition)
{
  GstGLImageSink *glimage_sink;
  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;

  GST_DEBUG ("changing state: %s => %s",
      gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
      gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));

  glimage_sink = GST_GLIMAGE_SINK (element);

  switch (transition) {
    case GST_STATE_CHANGE_NULL_TO_READY:
      break;
    case GST_STATE_CHANGE_READY_TO_PAUSED:
      g_atomic_int_set (&glimage_sink->to_quit, 0);
      if (!glimage_sink->display) {
        if (!gst_gl_ensure_display (glimage_sink, &glimage_sink->display))
          return GST_STATE_CHANGE_FAILURE;
      }
      break;
    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
      break;
    default:
      break;
  }

  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
  if (ret == GST_STATE_CHANGE_FAILURE)
    return ret;

  switch (transition) {
    case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
      break;
    case GST_STATE_CHANGE_PAUSED_TO_READY:
    {
      /* mark the redisplay_texture as unavailable (=0)
       * to avoid drawing
       */
      GST_GLIMAGE_SINK_LOCK (glimage_sink);
      glimage_sink->redisplay_texture = 0;
      if (glimage_sink->stored_buffer) {
        gst_buffer_unref (glimage_sink->stored_buffer);
        glimage_sink->stored_buffer = NULL;
      }
      GST_GLIMAGE_SINK_UNLOCK (glimage_sink);

      if (glimage_sink->upload) {
        gst_object_unref (glimage_sink->upload);
        glimage_sink->upload = NULL;
      }

      glimage_sink->window_id = 0;
      //but do not reset glimage_sink->new_window_id

      if (glimage_sink->pool) {
        gst_buffer_pool_set_active (glimage_sink->pool, FALSE);
        gst_object_unref (glimage_sink->pool);
        glimage_sink->pool = NULL;
      }

      GST_VIDEO_SINK_WIDTH (glimage_sink) = 1;
      GST_VIDEO_SINK_HEIGHT (glimage_sink) = 1;
      if (glimage_sink->context) {
        GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context);

        gst_gl_window_send_message (window,
            GST_GL_WINDOW_CB (gst_glimage_sink_cleanup_glthread), glimage_sink);

        gst_gl_window_set_resize_callback (window, NULL, NULL, NULL);
        gst_gl_window_set_draw_callback (window, NULL, NULL, NULL);
        gst_gl_window_set_close_callback (window, NULL, NULL, NULL);

        gst_object_unref (window);
        gst_object_unref (glimage_sink->context);
        glimage_sink->context = NULL;
      }

      if (glimage_sink->display) {
        gst_object_unref (glimage_sink->display);
        glimage_sink->display = NULL;
      }
      break;
    }
    case GST_STATE_CHANGE_READY_TO_NULL:
      break;
    default:
      break;
  }

  return ret;
}