mutter/cogl/cogl-attribute-buffer.c

/*
 * Cogl
 *
 * An object oriented GL/GLES Abstraction/Utility Layer
 *
 * Copyright (C) 2010 Intel Corporation.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see
 * <http://www.gnu.org/licenses/>.
 *
 *
 *
 * Authors:
 *   Robert Bragg <robert@linux.intel.com>
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "cogl-object-private.h"
#include "cogl-attribute-buffer.h"
#include "cogl-attribute-buffer-private.h"

static void _cogl_attribute_buffer_free (CoglAttributeBuffer *array);

COGL_BUFFER_DEFINE (AttributeBuffer, attribute_buffer);

CoglAttributeBuffer *
cogl_attribute_buffer_new (gsize bytes, const void *data)
{
  CoglAttributeBuffer *array = g_slice_new (CoglAttributeBuffer);
  gboolean use_malloc;

  if (!cogl_features_available (COGL_FEATURE_VBOS))
    use_malloc = TRUE;
  else
    use_malloc = FALSE;

  /* parent's constructor */
  _cogl_buffer_initialize (COGL_BUFFER (array),
                           bytes,
                           use_malloc,
                           COGL_BUFFER_BIND_TARGET_ATTRIBUTE_BUFFER,
                           COGL_BUFFER_USAGE_HINT_ATTRIBUTE_BUFFER,
                           COGL_BUFFER_UPDATE_HINT_STATIC);

  _cogl_attribute_buffer_object_new (array);

  if (data)
    cogl_buffer_set_data (COGL_BUFFER (array),
                          0,
                          data,
                          bytes);
  return array;
}

static void
_cogl_attribute_buffer_free (CoglAttributeBuffer *array)
{
  /* parent's destructor */
  _cogl_buffer_fini (COGL_BUFFER (array));

  g_slice_free (CoglAttributeBuffer, array);
}