C++ (Cpp) image_draw_rectangle Exemples

Exemple #1

Fichier : image.c Projet : cbetz421/gst-vaapi

GstVaapiImage *
image_generate(
    GstVaapiDisplay    *display,
    GstVaapiImageFormat format,
    guint               width,
    guint               height
)
{
    const guint w = width;
    const guint h = height;
    GstVaapiImage *image;

    image = gst_vaapi_image_new(display, format, w, h);
    if (!image)
        return NULL;

    if (image_draw_rectangle(image, 0,   0,   w/2, h/2, 0xffff0000) &&
        image_draw_rectangle(image, w/2, 0,   w/2, h/2, 0xff00ff00) &&
        image_draw_rectangle(image, 0,   h/2, w/2, h/2, 0xff0000ff) &&
        image_draw_rectangle(image, w/2, h/2, w/2, h/2, 0xff000000))
        return image;

    g_object_unref(image);
    return NULL;
}

Exemple #2

Fichier : image.c Projet : GStreamer/gstreamer-vaapi

static gboolean
image_draw_color_rectangles (GstVaapiImage * image,
    guint width, guint height, const guint32 colors[4], guint32 flags)
{
  const guint w = width / 2;
  const guint h = height / 2;

  if (!image_draw_rectangle (image, 0, 0, w, h, colors[0], flags))
    return FALSE;
  if (!image_draw_rectangle (image, w, 0, w, h, colors[1], flags))
    return FALSE;
  if (!image_draw_rectangle (image, 0, h, w, h, colors[2], flags))
    return FALSE;
  if (!image_draw_rectangle (image, w, h, w, h, colors[3], flags))
    return FALSE;
  return TRUE;
}