-#ifndef MSP_GL_BATCH_H_
-#define MSP_GL_BATCH_H_
-
-#include <vector>
-#include <msp/datafile/objectloader.h>
-#include "datatype.h"
-#include "primitivetype.h"
-
-namespace Msp {
-namespace GL {
-
-class Buffer;
-
-/**
-Stores primitive type and element indices for a single GL draw call. Data
-type for indices is automatically chosen to accommodate the largest index in
-the Batch.
-
-This is a pretty low-level class and mainly intended to be used by the Mesh
-class.
-*/
-class Batch
-{
-public:
- class Loader: public DataFile::ObjectLoader<Batch>
- {
- public:
- Loader(Batch &);
- private:
- void indices(const std::vector<unsigned> &);
- };
-
-private:
- PrimitiveType prim_type;
- DataType data_type;
- std::vector<unsigned char> data;
- unsigned min_index;
- unsigned max_index;
- bool restart;
- Buffer *ibuf;
- unsigned ibuf_offset;
- Batch *next_in_ibuf;
- Batch *prev_in_ibuf;
- mutable bool dirty;
-
- static unsigned restart_index;
-
-public:
- Batch(PrimitiveType t);
- ~Batch();
-
- PrimitiveType get_type() const { return prim_type; }
- void set_data_type(DataType);
- DataType get_data_type() const { return data_type; }
- void use_index_buffer(Buffer *, Batch * = 0);
- Batch &append(unsigned);
- void append(const std::vector<unsigned> &);
- void append(const Batch &);
- unsigned size() const { return data.size()/get_index_size(); }
- unsigned get_index(unsigned) const;
- void draw() const;
-
-private:
- unsigned get_index_size() const;
-
- template<typename T>
- void append_index(T);
-
- template<typename T, typename U>
- void expand_data();
-
- template<typename T, typename U>
- void shrink_data();
-
- template<typename T, typename U>
- U convert(T) const;
-
- void unlink_from_ibuf();
- void update_ibuf_offsets();
-};
-
-} // namespace GL
-} // namespace Msp
-
-#endif