static void gst_glimage_sink_thread_init_redisplay (GstGLImageSink * gl_sink);
#endif
static void gst_glimage_sink_on_close (GstGLImageSink * gl_sink);
-static void gst_glimage_sink_on_resize (const GstGLImageSink * gl_sink,
+static void gst_glimage_sink_on_resize (GstGLImageSink * gl_sink,
gint width, gint height);
-static void gst_glimage_sink_on_draw (const GstGLImageSink * gl_sink);
+static void gst_glimage_sink_on_draw (GstGLImageSink * gl_sink);
static gboolean gst_glimage_sink_redisplay (GstGLImageSink * gl_sink);
static void gst_glimage_sink_finalize (GObject * object);
{
ARG_0,
ARG_DISPLAY,
- PROP_CLIENT_RESHAPE_CALLBACK,
- PROP_CLIENT_DRAW_CALLBACK,
- PROP_CLIENT_DATA,
PROP_FORCE_ASPECT_RATIO,
PROP_PIXEL_ASPECT_RATIO,
PROP_OTHER_CONTEXT
};
+enum
+{
+ SIGNAL_0,
+ CLIENT_DRAW_SIGNAL,
+ CLIENT_RESHAPE_SIGNAL,
+ LAST_SIGNAL
+};
+
+static guint gst_glimage_sink_signals[LAST_SIGNAL] = { 0 };
+
#define gst_glimage_sink_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstGLImageSink, gst_glimage_sink,
GST_TYPE_VIDEO_SINK, G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY,
g_param_spec_string ("display", "Display", "Display name",
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
- g_object_class_install_property (gobject_class, PROP_CLIENT_RESHAPE_CALLBACK,
- g_param_spec_pointer ("client-reshape-callback",
- "Client reshape callback",
- "Define a custom reshape callback in a client code",
- G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_CLIENT_DRAW_CALLBACK,
- g_param_spec_pointer ("client-draw-callback", "Client draw callback",
- "Define a custom draw callback in a client code",
- G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (gobject_class, PROP_CLIENT_DATA,
- g_param_spec_pointer ("client-data", "Client data",
- "Pass data to the draw and reshape callbacks",
- G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
-
g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean ("force-aspect-ratio",
"Force aspect ratio",
"Sink/Video", "A videosink based on OpenGL",
"Julien Isorce <julien.isorce@gmail.com>");
+ /**
+ * GstGLImageSink::client-draw:
+ * @object: the #GstGLImageSink
+ * @texture: the #guint id of the texture.
+ * @width: the #guint width of the texture.
+ * @height: the #guint height of the texture.
+ *
+ * Will be emitted before actually drawing the texture. The client should
+ * redraw the surface/contents with the @texture, @width and @height and
+ * and return %TRUE.
+ *
+ * Returns: whether the texture was redrawn by the signal. If not, a
+ * default redraw will occur.
+ */
+ gst_glimage_sink_signals[CLIENT_DRAW_SIGNAL] =
+ g_signal_new ("client-draw", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_generic,
+ G_TYPE_BOOLEAN, 3, G_TYPE_UINT, G_TYPE_UINT, G_TYPE_UINT);
+
+ /**
+ * GstGLImageSink::client-reshape:
+ * @object: the #GstGLImageSink
+ * @width: the #guint width of the texture.
+ * @height: the #guint height of the texture.
+ *
+ * The client should resize the surface/window/viewport with the @width and
+ * @height and return %TRUE.
+ *
+ * Returns: whether the content area was resized by the signal. If not, a
+ * default viewport resize will occur.
+ */
+ gst_glimage_sink_signals[CLIENT_RESHAPE_SIGNAL] =
+ g_signal_new ("client-reshape", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_generic,
+ G_TYPE_BOOLEAN, 2, G_TYPE_UINT, G_TYPE_UINT);
+
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_glimage_sink_template));
glimage_sink->window_id = 0;
glimage_sink->new_window_id = 0;
glimage_sink->display = NULL;
- glimage_sink->clientReshapeCallback = NULL;
- glimage_sink->clientDrawCallback = NULL;
- glimage_sink->client_data = NULL;
glimage_sink->keep_aspect_ratio = FALSE;
glimage_sink->par_n = 0;
glimage_sink->par_d = 1;
glimage_sink->display_name = g_strdup (g_value_get_string (value));
break;
}
- case PROP_CLIENT_RESHAPE_CALLBACK:
- {
- glimage_sink->clientReshapeCallback = g_value_get_pointer (value);
- break;
- }
- case PROP_CLIENT_DRAW_CALLBACK:
- {
- glimage_sink->clientDrawCallback = g_value_get_pointer (value);
- break;
- }
- case PROP_CLIENT_DATA:
- {
- glimage_sink->client_data = g_value_get_pointer (value);
- break;
- }
case PROP_FORCE_ASPECT_RATIO:
{
glimage_sink->keep_aspect_ratio = g_value_get_boolean (value);
#endif
static void
-gst_glimage_sink_on_resize (const GstGLImageSink * gl_sink, gint width,
- gint height)
+gst_glimage_sink_on_resize (GstGLImageSink * gl_sink, gint width, gint height)
{
/* Here gl_sink members (ex:gl_sink->info) have a life time of set_caps.
* It means that they cannot not change between two set_caps
*/
const GstGLFuncs *gl = gl_sink->context->gl_vtable;
+ gboolean do_reshape;
GST_TRACE ("GL Window resized to %ux%u", width, height);
/* check if a client reshape callback is registered */
- if (gl_sink->clientReshapeCallback)
- gl_sink->clientReshapeCallback (width, height, gl_sink->client_data);
+ g_signal_emit (gl_sink, gst_glimage_sink_signals[CLIENT_RESHAPE_SIGNAL], 0,
+ width, height, &do_reshape);
/* default reshape */
- else {
+ if (!do_reshape) {
if (gl_sink->keep_aspect_ratio) {
GstVideoRectangle src, dst, result;
static void
-gst_glimage_sink_on_draw (const GstGLImageSink * gl_sink)
+gst_glimage_sink_on_draw (GstGLImageSink * gl_sink)
{
/* Here gl_sink members (ex:gl_sink->info) have a life time of set_caps.
* It means that they cannot not change between two set_caps as well as
const GstGLFuncs *gl = NULL;
GstGLWindow *window = NULL;
+ gboolean do_redisplay;
g_return_if_fail (GST_IS_GLIMAGE_SINK (gl_sink));
gl->BindTexture (GL_TEXTURE_2D, 0);
- /* check if a client draw callback is registered */
- if (gl_sink->clientDrawCallback) {
-
- gboolean doRedisplay =
- gl_sink->clientDrawCallback (gl_sink->redisplay_texture,
- GST_VIDEO_INFO_WIDTH (&gl_sink->info),
- GST_VIDEO_INFO_HEIGHT (&gl_sink->info),
- gl_sink->client_data);
+ g_signal_emit (gl_sink, gst_glimage_sink_signals[CLIENT_DRAW_SIGNAL], 0,
+ gl_sink->redisplay_texture, GST_VIDEO_INFO_WIDTH (&gl_sink->info),
+ GST_VIDEO_INFO_HEIGHT (&gl_sink->info), &do_redisplay);
- if (doRedisplay)
- gst_gl_window_draw_unlocked (window,
- GST_VIDEO_INFO_WIDTH (&gl_sink->info),
- GST_VIDEO_INFO_HEIGHT (&gl_sink->info));
- }
- /* default opengl scene */
- else {
+ if (!do_redisplay) {
#if GST_GL_HAVE_OPENGL
if (USING_OPENGL (gl_sink->context)) {
GLfloat verts[8] = { 1.0f, 1.0f,
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
}
#endif
- } /* end default opengl scene */
-
+ }
+ /* end default opengl scene */
window->is_drawing = FALSE;
gst_object_unref (window);