C++ (Cpp) cogl_wayland_texture_2d_new_from_buffer Examples

Example #1

File: cogland.c Project: recrack/cogl-android

static void
cogland_surface_attach_buffer (struct wl_client *wayland_client,
                               struct wl_resource *wayland_surface_resource,
                               struct wl_resource *wayland_buffer_resource,
                               int32_t dx, int32_t dy)
{
  struct wl_buffer *wayland_buffer = wayland_buffer_resource->data;
  CoglandBuffer *buffer = wayland_buffer->user_data;
  CoglandSurface *surface = wayland_surface_resource->data;
  CoglandCompositor *compositor = surface->compositor;

  /* XXX: in the case where we are reattaching the same buffer we can
   * simply bail out. Note this is important because if we don't bail
   * out then the _detach_buffer will actually end up destroying the
   * buffer we're trying to attach. */
  if (buffer && surface->buffer == buffer)
    return;

  cogland_surface_detach_buffer (surface);

  /* XXX: it seems like for shm buffers we will have been notified of
   * the buffer already via the callbacks, but for drm buffers I guess
   * this will be the first we know of them? */
  if (!buffer)
    {
      buffer = cogland_buffer_new (wayland_buffer);
      wayland_buffer->user_data = buffer;
    }

  g_return_if_fail (g_list_find (buffer->surfaces_attached_to, surface) == NULL);

  buffer->surfaces_attached_to = g_list_prepend (buffer->surfaces_attached_to,
                                                 surface);

  if (!buffer->texture)
    {
      CoglError *error = NULL;

      buffer->texture =
        cogl_wayland_texture_2d_new_from_buffer (compositor->cogl_context,
                                                 wayland_buffer,
                                                 &error);
      if (!buffer->texture)
        g_error ("Failed to create texture_2d from wayland buffer: %s",
                 error->message);
    }

  surface->buffer = buffer;
}

Example #2

File: cogland.c Project: spatulasnout/cogl

static void
cogland_surface_attach_buffer (struct wl_client *wayland_client,
                               struct wl_surface *wayland_surface,
                               struct wl_buffer *wayland_buffer,
                               gint32 dx, gint32 dy)
{
  CoglandBuffer *buffer = wayland_buffer->user_data;
  CoglandSurface *surface = container_of (wayland_surface,
                                          CoglandSurface,
                                          wayland_surface);
  CoglandCompositor *compositor = surface->compositor;

  cogland_surface_detach_buffer (surface);

  /* XXX: it seems like for shm buffers we will have been notified of
   * the buffer already via the callbacks, but for drm buffers I guess
   * this will be the first we know of them? */
  if (!buffer)
    {
      buffer = cogland_buffer_new (wayland_buffer);
      wayland_buffer->user_data = buffer;
    }

  /* wayland-drm.c: drm_create_buffer doesn't fill this in for us...*/
  if (!wayland_buffer->compositor)
    wayland_buffer->compositor = &compositor->wayland_compositor;

  g_return_if_fail (g_list_find (buffer->surfaces_attached_to, surface) == NULL);

  buffer->surfaces_attached_to = g_list_prepend (buffer->surfaces_attached_to,
                                                 surface);

  if (!buffer->texture)
    {
      GError *error = NULL;

      buffer->texture =
        cogl_wayland_texture_2d_new_from_buffer (compositor->cogl_context,
                                                 wayland_buffer,
                                                 &error);
      if (!buffer->texture)
        g_error ("Failed to create texture_2d from wayland buffer: %s",
                 error->message);
    }

  surface->buffer = buffer;
}

Example #3

File: cogland.c Project: 3v1n0/cogl

static void
cogland_surface_commit (struct wl_client *client,
                        struct wl_resource *resource)
{
  CoglandSurface *surface = wl_resource_get_user_data (resource);
  CoglandCompositor *compositor = surface->compositor;

  /* wl_surface.attach */
  if (surface->pending.newly_attached &&
      surface->buffer_ref.buffer != surface->pending.buffer)
    {
      CoglError *error = NULL;

      if (surface->texture)
        {
          cogl_object_unref (surface->texture);
          surface->texture = NULL;
        }

      cogland_buffer_reference (&surface->buffer_ref, surface->pending.buffer);

      if (surface->pending.buffer)
        {
          struct wl_resource *buffer_resource =
            surface->pending.buffer->resource;

          surface->texture =
            cogl_wayland_texture_2d_new_from_buffer (compositor->cogl_context,
                                                     buffer_resource,
                                                     &error);

          if (!surface->texture)
            {
              g_error ("Failed to create texture_2d from wayland buffer: %s",
                       error->message);
              cogl_error_free (error);
            }
        }
    }
  if (surface->pending.buffer)
    {
      wl_list_remove (&surface->pending.buffer_destroy_listener.link);
      surface->pending.buffer = NULL;
    }
  surface->pending.sx = 0;
  surface->pending.sy = 0;
  surface->pending.newly_attached = FALSE;

  /* wl_surface.damage */
  if (surface->buffer_ref.buffer &&
      surface->texture &&
      !region_is_empty (&surface->pending.damage))
    {
      CoglandRegion *region = &surface->pending.damage;
      CoglTexture *texture = surface->texture;

      if (region->x2 > cogl_texture_get_width (texture))
        region->x2 = cogl_texture_get_width (texture);
      if (region->y2 > cogl_texture_get_height (texture))
        region->y2 = cogl_texture_get_height (texture);
      if (region->x1 < 0)
        region->x1 = 0;
      if (region->y1 < 0)
        region->y1 = 0;

      surface_damaged (surface,
                       region->x1,
                       region->y1,
                       region->x2 - region->x1,
                       region->y2 - region->y1);
    }
  region_init (&surface->pending.damage);

  /* wl_surface.frame */
  wl_list_insert_list (&compositor->frame_callbacks,
                       &surface->pending.frame_callback_list);
  wl_list_init (&surface->pending.frame_callback_list);
}