libcrbn/rendering/cache.hpp

#ifndef __rendering_cache_hpp__
#define __rendering_cache_hpp__

#include <crbn/basic/ray.hpp>
#include <crbn/basic/vec3.hpp>

typedef struct _cache_entry {
  uint x, y;
  uint size;
  vec2* uvs;
  ray* rays;
  vec3 color;
} cache_entry;

class RenderingCache
{
public:
  RenderingCache( int size, int samples ) : _size( size ), _samples( samples ) {
    _entries = new cache_entry [ size ];
    for( int i = 0; i < size; ++i ) {
      _entries[ i ].size = samples;
      _entries[ i ].uvs = new vec2 [ samples ];
      _entries[ i ].rays = new ray [ samples ];
    }
  }
  ~RenderingCache() {
    for( int i = 0; i < _size; ++i ) {
      delete [] _entries[ i ].rays;
      _entries[ i ].rays = 0;
      delete [] _entries[ i ].uvs;
      _entries[ i ].uvs = 0;
    }
    delete [] _entries;
    _entries = 0;
  }

  int samples() { return _samples; }

  cache_entry* get_entry( int i ) {
    return &(_entries[ i ]);
  }
private:
  int _size, _samples;
  cache_entry* _entries;
};

#endif // __rendering_cache_hpp__

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