C++ (Cpp) gst_gl_display_get_gl_api 예제들

예제 #1

파일: gstglcontext_gpu_process.c 프로젝트: ltilve/ChromiumGStreamerBackend

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;
}

예제 #2

파일: gstglcontext.c 프로젝트: ndufresne/gst-plugins-bad

/**
 * gst_gl_context_new_wrapped:
 * @display: a #GstGLDisplay
 * @handle: the OpenGL context to wrap
 * @context_type: a #GstGLPlatform specifying the type of context in @handle
 * @available_apis: a #GstGLAPI containing the available OpenGL apis in @handle
 *
 * Wraps an existing OpenGL context into a #GstGLContext.  
 *
 * Returns: a #GstGLContext wrapping @handle
 *
 * Since: 1.4
 */
GstGLContext *
gst_gl_context_new_wrapped (GstGLDisplay * display, guintptr handle,
    GstGLPlatform context_type, GstGLAPI available_apis)
{
  GstGLContext *context;
  GstGLWrappedContext *context_wrap = NULL;
  GstGLContextClass *context_class;
  GstGLAPI display_api;

  _init_debug ();

  display_api = gst_gl_display_get_gl_api (display);
  g_return_val_if_fail ((display_api & available_apis) != GST_GL_API_NONE,
      NULL);

  context_wrap = g_object_new (GST_GL_TYPE_WRAPPED_CONTEXT, NULL);

  if (!context_wrap) {
    /* subclass returned a NULL context */
    GST_ERROR ("Could not wrap existing context");

    return NULL;
  }

  context = (GstGLContext *) context_wrap;

  context->display = gst_object_ref (display);
  context->priv->sharegroup_id = _new_sharegroup_id ();
  context_wrap->handle = handle;
  context_wrap->platform = context_type;
  context_wrap->available_apis = available_apis;

  context_class = GST_GL_CONTEXT_GET_CLASS (context);

#if GST_GL_HAVE_PLATFORM_GLX
  if (context_type == GST_GL_PLATFORM_GLX) {
    context_class->get_current_context = gst_gl_context_glx_get_current_context;
    context_class->get_proc_address = gst_gl_context_glx_get_proc_address;
  }
#endif
#if GST_GL_HAVE_PLATFORM_EGL
  if (context_type == GST_GL_PLATFORM_EGL) {
    context_class->get_current_context = gst_gl_context_egl_get_current_context;
    context_class->get_proc_address = gst_gl_context_egl_get_proc_address;
  }
#endif
#if GST_GL_HAVE_PLATFORM_CGL
  if (context_type == GST_GL_PLATFORM_CGL) {
    context_class->get_current_context =
        gst_gl_context_cocoa_get_current_context;
    context_class->get_proc_address = gst_gl_context_default_get_proc_address;
  }
#endif
#if GST_GL_HAVE_PLATFORM_WGL
  if (context_type == GST_GL_PLATFORM_WGL) {
    context_class->get_current_context = gst_gl_context_wgl_get_current_context;
    context_class->get_proc_address = gst_gl_context_wgl_get_proc_address;
  }
#endif
#if GST_GL_HAVE_PLATFORM_EAGL
  if (context_type == GST_GL_PLATFORM_EAGL) {
    context_class->get_current_context =
        gst_gl_context_eagl_get_current_context;
    context_class->get_proc_address = gst_gl_context_default_get_proc_address;
  }
#endif

  if (!context_class->get_current_context) {
    /* we don't have API support */
    gst_object_unref (context);
    return NULL;
  }

  return context;
}