Exemplo n.º 1
0
int
main (int argc, char **argv)
{
    Data data;
    CoglOnscreen *onscreen;
    CoglError *error = NULL;
    CoglVertexP2C4 triangle_vertices[] = {
        {0, 0.7, 0xff, 0x00, 0x00, 0x80},
        {-0.7, -0.7, 0x00, 0xff, 0x00, 0xff},
        {0.7, -0.7, 0x00, 0x00, 0xff, 0xff}
    };
    GSource *cogl_source;
    GMainLoop *loop;

    data.ctx = cogl_context_new (NULL, &error);
    if (!data.ctx) {
        fprintf (stderr, "Failed to create context: %s\n", error->message);
        return 1;
    }

    onscreen = cogl_onscreen_new (data.ctx, 640, 480);
    cogl_onscreen_show (onscreen);
    data.fb = COGL_FRAMEBUFFER (onscreen);

    cogl_onscreen_set_resizable (onscreen, TRUE);

    data.triangle = cogl_primitive_new_p2c4 (data.ctx,
                                             COGL_VERTICES_MODE_TRIANGLES,
                                             3, triangle_vertices);
    data.pipeline = cogl_pipeline_new (data.ctx);

    cogl_source = cogl_glib_source_new (data.ctx, G_PRIORITY_DEFAULT);

    g_source_attach (cogl_source, NULL);

    if (cogl_has_feature (data.ctx, COGL_FEATURE_ID_SWAP_BUFFERS_EVENT))
      cogl_onscreen_add_swap_buffers_callback (COGL_ONSCREEN (data.fb),
                                               swap_complete_cb, &data);

    g_idle_add (paint_cb, &data);

    loop = g_main_loop_new (NULL, TRUE);
    g_main_loop_run (loop);

    return 0;
}
Exemplo n.º 2
0
int
main (int argc,
      char **argv)
{
  Data data;
  CoglContext *ctx;
  CoglOnscreen *onscreen;
  GstElement *pipeline;
  GSource *cogl_source;
  GstBus *bus;
  char *uri;
  GError *error = NULL;

  memset (&data, 0, sizeof (Data));

  /* Set the necessary cogl elements */

  ctx = cogl_context_new (NULL, NULL);

  onscreen = cogl_onscreen_new (ctx, 640, 480);
  cogl_onscreen_set_resizable (onscreen, TRUE);
  cogl_onscreen_add_resize_callback (onscreen, _resize_callback, &data, NULL);
  cogl_onscreen_show (onscreen);

  data.fb = onscreen;
  cogl_framebuffer_orthographic (data.fb, 0, 0, 640, 480, -1, 100);

  data.border_pipeline = cogl_pipeline_new (ctx);
  cogl_pipeline_set_color4f (data.border_pipeline, 0, 0, 0, 1);
  /* disable blending */
  cogl_pipeline_set_blend (data.border_pipeline,
                           "RGBA = ADD (SRC_COLOR, 0)", NULL);

  /* Intialize GStreamer */

  gst_init (&argc, &argv);

  /*
     Create the cogl-gst video sink by calling the cogl_gst_video_sink_new
     function and passing it a CoglContext (this is used to create the
     CoglPipeline and the texures for each frame). Alternatively you can use
     gst_element_factory_make ("coglsink", "some_name") and then set the
     context with cogl_gst_video_sink_set_context.
  */

  if (argc < 2)
    uri = "http://docs.gstreamer.com/media/sintel_trailer-480p.webm";
  else
    uri = argv[1];

  if (!make_pipeline_for_uri (ctx, uri, &pipeline, &data.sink, &error))
    {
      g_print ("Error creating pipeline: %s\n", error->message);
      g_clear_error (&error);
      return EXIT_FAILURE;
    }

  gst_element_set_state (pipeline, GST_STATE_PLAYING);
  bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
  gst_bus_add_watch (bus, _bus_watch, &data);

  data.main_loop = g_main_loop_new (NULL, FALSE);

  cogl_source = cogl_glib_source_new (ctx, G_PRIORITY_DEFAULT);
  g_source_attach (cogl_source, NULL);

  /*
    The cogl-pipeline-ready signal tells you when the cogl pipeline is
    initialized i.e. when cogl-gst has figured out the video format and
    is prepared to retrieve and attach the first frame of the video.
  */

  g_signal_connect (data.sink, "pipeline-ready",
                    G_CALLBACK (_set_up_pipeline), &data);

  data.draw_ready = TRUE;
  data.frame_ready = FALSE;

  g_main_loop_run (data.main_loop);

  g_source_destroy (cogl_source);
  g_source_unref (cogl_source);

  g_main_loop_unref (data.main_loop);

  return 0;
}