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1 #pragma once
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2
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3 class seekabilizer_backbuffer
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4 {
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5 public:
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6 void initialize(t_size p_size);
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7 void write(const void * p_buffer,t_size p_bytes);
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8 void read(t_size p_backlogdepth,void * p_buffer,t_size p_bytes) const;
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9 t_size get_depth() const;
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10 void reset();
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11 t_size get_max_depth() const;
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12 private:
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13 pfc::array_t<t_uint8> m_buffer;
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14 t_size m_depth,m_cursor;
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15 };
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16
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17 class seekabilizer : public file_readonly_t<file_v2> {
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18 public:
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19 void initialize(service_ptr_t<file> p_base,t_size p_buffer_size,abort_callback & p_abort);
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20
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21 static void g_seekabilize(service_ptr_t<file> & p_reader,t_size p_buffer_size,abort_callback & p_abort);
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22
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23 t_size read(void * p_buffer,t_size p_bytes,abort_callback & p_abort);
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24 t_filesize get_size(abort_callback & p_abort);
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25 t_filesize get_position(abort_callback & p_abort);
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26 void seek(t_filesize p_position,abort_callback & p_abort);
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27 bool can_seek();
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28 bool get_content_type(pfc::string_base & p_out);
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29 bool is_in_memory();
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30 void on_idle(abort_callback & p_abort);
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31 t_filetimestamp get_timestamp(abort_callback & p_abort);
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32 void reopen(abort_callback & p_abort);
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33 bool is_remote();
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34
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35 service_ptr get_metadata(abort_callback&);
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36 t_filestats2 get_stats2(uint32_t s2flags, abort_callback&);
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37 size_t lowLevelIO(const GUID& guid, size_t arg1, void* arg2, size_t arg2size, abort_callback& abort);
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38 private:
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39 service_ptr_t<file> m_file;
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40 seekabilizer_backbuffer m_buffer;
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41 t_filesize m_size,m_position,m_position_base;
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42 }; |
