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1 #pragma once
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2 #include "file_info.h"
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3
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4 class file_info_readonly : public file_info {
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5 [[noreturn]] static void verboten() { FB2K_BugCheck(); }
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6 protected:
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7 void set_length(double) override { verboten(); }
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8 void set_replaygain(const replaygain_info &) override { verboten(); }
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9
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10
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11 t_size meta_set_ex(const char *, t_size, const char *, t_size) override { verboten(); }
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12 void meta_insert_value_ex(t_size, t_size, const char *, t_size) override { verboten(); }
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13 void meta_remove_mask(const bit_array &) override { verboten(); }
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14 void meta_reorder(const t_size *) override { verboten(); }
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15 void meta_remove_values(t_size, const bit_array &) override { verboten(); }
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16 void meta_modify_value_ex(t_size, t_size, const char *, t_size) override { verboten(); }
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17
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18 t_size info_set_ex(const char *, t_size, const char *, t_size) override { verboten(); }
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19 void info_remove_mask(const bit_array &) override { verboten(); }
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20
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21 t_size meta_set_nocheck_ex(const char *, t_size, const char *, t_size) override { verboten(); }
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22 t_size info_set_nocheck_ex(const char *, t_size, const char *, t_size) override { verboten(); }
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23 };
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24
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25 #define __file_info_const_impl_have_hintmap__
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26
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27 //! Special implementation of file_info that implements only const and copy methods. The difference between this and regular file_info_impl is amount of resources used and speed of the copy operation.
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28 class file_info_const_impl : public file_info_readonly
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29 {
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30 public:
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31 file_info_const_impl(const file_info & p_source) {copy(p_source);}
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32 file_info_const_impl(const file_info_const_impl & p_source) {copy(p_source);}
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33 file_info_const_impl() {m_meta_count = m_info_count = 0; m_length = 0; m_replaygain.reset();}
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34
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35 double get_length() const {return m_length;}
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36
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37 t_size meta_get_count() const {return m_meta_count;}
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38 const char* meta_enum_name(t_size p_index) const {return m_meta[p_index].m_name;}
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39 t_size meta_enum_value_count(t_size p_index) const;
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40 const char* meta_enum_value(t_size p_index,t_size p_value_number) const;
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41 t_size meta_find_ex(const char * p_name,t_size p_name_length) const;
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42
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43 t_size info_get_count() const {return m_info_count;}
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44 const char* info_enum_name(t_size p_index) const {return m_info[p_index].m_name;}
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45 const char* info_enum_value(t_size p_index) const {return m_info[p_index].m_value;}
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46
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47
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48 const file_info_const_impl & operator=(const file_info & p_source) {copy(p_source); return *this;}
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49 const file_info_const_impl & operator=(const file_info_const_impl & p_source) {copy(p_source); return *this;}
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50 void copy(const file_info & p_source);
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51 void reset();
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52
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53 replaygain_info get_replaygain() const {return m_replaygain;}
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54
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55 public:
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56 struct meta_entry {
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57 const char * m_name;
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58 t_size m_valuecount;
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59 const char * const * m_valuemap;
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60 };
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61
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62 struct info_entry {
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63 const char * m_name;
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64 const char * m_value;
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65 };
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66
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67 #ifdef __file_info_const_impl_have_hintmap__
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68 typedef t_uint32 t_index;
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69 enum {hintmap_cutoff = 20};
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70 #endif//__file_info_const_impl_have_hintmap__
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71 private:
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72 pfc::array_t<char> m_buffer;
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73 t_index m_meta_count;
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74 t_index m_info_count;
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75
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76 const meta_entry * m_meta;
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77 const info_entry * m_info;
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78
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79 #ifdef __file_info_const_impl_have_hintmap__
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80 const t_index * m_hintmap;
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81 #endif
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82
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83 double m_length;
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84 replaygain_info m_replaygain;
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85 };
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