ext/directfb/Makefile.am: Add the example application.

Original commit message from CVS:
2005-11-06  Julien MOUTTE  <julien@moutte.net>

* ext/directfb/Makefile.am: Add the example application.
* ext/directfb/dfb-example.c: (get_me_out), (main):
Here is an example application that runs videotestsrc for 20
seconds. It's included in the documentation.
* ext/directfb/dfbvideosink.c: (gst_dfbvideosink_enum_layers),
(gst_dfbvideosink_setup),
(gst_dfbvideosink_can_blit_from_format),
(gst_dfbvideosink_getcaps), (gst_dfbvideosink_buffer_alloc):
More fixes, calculate new size of the buffer when renegotiating.
This completely breaks ffmpegcolorspace but i need to discuss
that with Wim on monday. Add documentation.

1 files changed, 78 insertions, 0 deletions

diff --git a/ext/directfb/dfb-example.c b/ext/directfb/dfb-example.c
new file mode 100644
index 00000000..3f455c92
--- /dev/null
+++ b/ext/directfb/dfb-example.c
@@ -0,0 +1,78 @@
+
+#include <directfb.h>
+#include <gst/gst.h>
+
+static IDirectFB *dfb = NULL;
+static IDirectFBSurface *primary = NULL;
+static GMainLoop *loop;
+
+#define DFBCHECK(x...)                                         \
+  {                                                            \
+    DFBResult err = x;                                         \
+                                                               \
+    if (err != DFB_OK)                                         \
+      {                                                        \
+        fprintf( stderr, "%s <%d>:\n\t", __FILE__, __LINE__ ); \
+        DirectFBErrorFatal( #x, err );                         \
+      }                                                        \
+  }
+
+static gboolean
+get_me_out (gpointer data)
+{
+  g_main_loop_quit (loop);
+  return FALSE;
+}
+
+int
+main (int argc, char *argv[])
+{
+  DFBSurfaceDescription dsc;
+  GstElement *pipeline, *src, *sink;
+
+  /* Init both GStreamer and DirectFB */
+  DFBCHECK (DirectFBInit (&argc, &argv));
+  gst_init (&argc, &argv);
+
+  /* Creates DirectFB main context and set it to fullscreen layout */
+  DFBCHECK (DirectFBCreate (&dfb));
+  DFBCHECK (dfb->SetCooperativeLevel (dfb, DFSCL_FULLSCREEN));
+
+  /* We want a double buffered primary surface */
+  dsc.flags = DSDESC_CAPS;
+  dsc.caps = DSCAPS_PRIMARY | DSCAPS_FLIPPING;
+
+  DFBCHECK (dfb->CreateSurface (dfb, &dsc, &primary));
+
+  /* Creating our pipeline : videotestsrc ! dfbvideosink */
+  pipeline = gst_pipeline_new (NULL);
+  g_assert (pipeline);
+  src = gst_element_factory_make ("videotestsrc", NULL);
+  g_assert (src);
+  sink = gst_element_factory_make ("dfbvideosink", NULL);
+  g_assert (sink);
+  /* That's the interesting part, giving the primary surface to dfbvideosink */
+  g_object_set (sink, "surface", primary, NULL);
+
+  /* Adding elements to the pipeline */
+  gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL);
+  g_assert (gst_element_link (src, sink));
+
+  /* Let's play ! */
+  gst_element_set_state (pipeline, GST_STATE_PLAYING);
+
+  /* we need to run a GLib main loop to get out of here */
+  loop = g_main_loop_new (NULL, FALSE);
+  /* Get us out after 20 seconds */
+  g_timeout_add (20000, get_me_out, NULL);
+  g_main_loop_run (loop);
+
+  /* Release elements and stop playback */
+  gst_element_set_state (pipeline, GST_STATE_NULL);
+
+  /* Release DirectFB context and surface */
+  primary->Release (primary);
+  dfb->Release (dfb);
+
+  return 0;
+}