Exemplos de gst_gl_window_x11_trap_x_errors em C++ (Cpp)

Exemplo n.º 1

Arquivo: gstglcontext_glx.c Projeto: alessandrod/gst-plugins-bad

static GLXContext
_create_context_with_flags (GstGLContextGLX * context_glx, Display * dpy,
    GLXFBConfig fbconfig, GLXContext share_context, gint major, gint minor,
    gint contextFlags, gint profileMask)
{
  GLXContext ret;
#define N_ATTRIBS 20
  gint attribs[N_ATTRIBS];
  int x_error = 0;
  gint n = 0;

  if (major) {
    attribs[n++] = GLX_CONTEXT_MAJOR_VERSION_ARB;
    attribs[n++] = major;
  }
  if (minor) {
    attribs[n++] = GLX_CONTEXT_MINOR_VERSION_ARB;
    attribs[n++] = minor;
  }
  if (contextFlags) {
    attribs[n++] = GLX_CONTEXT_FLAGS_ARB;
    attribs[n++] = contextFlags;
  }
#ifdef GLX_ARB_create_context_profile
  if (profileMask) {
    attribs[n++] = GLX_CONTEXT_PROFILE_MASK_ARB;
    attribs[n++] = profileMask;
  }
#endif
  attribs[n++] = None;

  g_assert (n < N_ATTRIBS);
#undef N_ATTRIBS

  gst_gl_window_x11_trap_x_errors ();
  ret = context_glx->priv->glXCreateContextAttribsARB (dpy, fbconfig,
      share_context, True, attribs);
  x_error = gst_gl_window_x11_untrap_x_errors ();

  if (x_error)
    ret = 0;

  return ret;
}

Exemplo n.º 2

Arquivo: gstglcontext_glx.c Projeto: jledet/gst-plugins-bad

static gboolean
gst_gl_context_glx_create_context (GstGLContext * context,
    GstGLAPI gl_api, GstGLContext * other_context, GError ** error)
{
  GstGLContextGLX *context_glx;
  GstGLWindow *window;
  GstGLWindowX11 *window_x11;
  GstGLDisplay *display;
  gboolean create_context;
  const char *glx_exts;
  int x_error;
  Display *device;
  guintptr external_gl_context = 0;

  context_glx = GST_GL_CONTEXT_GLX (context);
  window = gst_gl_context_get_window (context);
  window_x11 = GST_GL_WINDOW_X11 (window);
  display = gst_gl_context_get_display (context);

  if (other_context) {
    if (gst_gl_context_get_gl_platform (other_context) != GST_GL_PLATFORM_GLX) {
      g_set_error (error, GST_GL_CONTEXT_ERROR,
          GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
          "Cannot share context with non-GLX context");
      goto failure;
    }

    external_gl_context = gst_gl_context_get_gl_context (other_context);
  }

  device = (Display *) gst_gl_display_get_handle (display);
  glx_exts = glXQueryExtensionsString (device, DefaultScreen (device));

  create_context = gst_gl_check_extension ("GLX_ARB_create_context", glx_exts);
  context_glx->priv->glXCreateContextAttribsARB =
      (gpointer) glXGetProcAddressARB ((const GLubyte *)
      "glXCreateContextAttribsARB");

  if (create_context && context_glx->priv->glXCreateContextAttribsARB) {
    int context_attribs_3[] = {
      GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
      GLX_CONTEXT_MINOR_VERSION_ARB, 0,
      //GLX_CONTEXT_FLAGS_ARB        , GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
#if !defined(GST_DISABLE_GST_DEBUG)
      GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_DEBUG_BIT_ARB,
#endif
      None
    };

    int context_attribs_pre_3[] = {
      GLX_CONTEXT_MAJOR_VERSION_ARB, 1,
      GLX_CONTEXT_MINOR_VERSION_ARB, 4,
      None
    };

    gst_gl_window_x11_trap_x_errors ();
    context_glx->glx_context =
        context_glx->priv->glXCreateContextAttribsARB (device,
        context_glx->priv->fbconfigs[0], (GLXContext) external_gl_context, True,
        context_attribs_3);

    x_error = gst_gl_window_x11_untrap_x_errors ();
    context_glx->priv->context_api = GST_GL_API_OPENGL;

    if (!context_glx->glx_context || x_error != 0) {
      GST_DEBUG ("Failed to create an Opengl 3 context. trying a legacy one");

      gst_gl_window_x11_trap_x_errors ();
      context_glx->glx_context =
          context_glx->priv->glXCreateContextAttribsARB (device,
          context_glx->priv->fbconfigs[0], (GLXContext) external_gl_context,
          True, context_attribs_pre_3);

      x_error = gst_gl_window_x11_untrap_x_errors ();

      if (x_error != 0)
        context_glx->glx_context = NULL;
      context_glx->priv->context_api = GST_GL_API_OPENGL;
    }

  } else {
    context_glx->glx_context =
        glXCreateContext (device, window_x11->visual_info,
        (GLXContext) external_gl_context, TRUE);
    context_glx->priv->context_api = GST_GL_API_OPENGL;
  }

  if (context_glx->priv->fbconfigs)
    XFree (context_glx->priv->fbconfigs);

  if (!context_glx->glx_context) {
    g_set_error (error, GST_GL_CONTEXT_ERROR,
        GST_GL_CONTEXT_ERROR_CREATE_CONTEXT, "Failed to create opengl context");
    goto failure;
  }

  GST_LOG ("gl context id: %ld", (gulong) context_glx->glx_context);

  gst_object_unref (window);
  gst_object_unref (display);

  return TRUE;

failure:
  if (window)
    gst_object_unref (window);
  gst_object_unref (display);

  return FALSE;
}