tables.h

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/*
 * Copyright 2011-2013 Blender Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef __TABLES_H__
#define __TABLES_H__
 
#include "util/util_list.h"
#include "util/util_vector.h"
 
CCL_NAMESPACE_BEGIN
 
class Device;
class DeviceScene;
class Scene;
 
enum { TABLE_CHUNK_SIZE = 256 };
enum { TABLE_OFFSET_INVALID = -1 };
 
class LookupTables {
  bool need_update_;
 
 public:
  struct Table {
    size_t offset;
    size_t size;
  };
 
  list<Table> lookup_tables;
 
  LookupTables();
  ~LookupTables();
 
  void device_update(Device *device, DeviceScene *dscene, Scene *scene);
  void device_free(Device *device, DeviceScene *dscene);
 
  bool need_update() const;
 
  size_t add_table(DeviceScene *dscene, vector<float> &data);
  void remove_table(size_t *offset);
};
 
CCL_NAMESPACE_END
 
#endif /* __TABLES_H__ */