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annotate DPF-Prymula-audioplugins/dpf/distrho/src/lv2/atom.h @ 4:0962f0296c8a

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ColorsMemory-0.210503-1.1
author prymula <prymula76@outlook.com>
date Tue, 30 Jan 2024 16:43:10 +0100
parents 84e66ea83026
children
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1 /*
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2 Copyright 2008-2016 David Robillard <http://drobilla.net>
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3
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4 Permission to use, copy, modify, and/or distribute this software for any
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5 purpose with or without fee is hereby granted, provided that the above
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6 copyright notice and this permission notice appear in all copies.
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7
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8 THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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9 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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10 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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11 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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12 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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13 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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14 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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15 */
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16
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17 /**
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18 @defgroup atom Atom
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19
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20 A generic value container and several data types, see
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21 <http://lv2plug.in/ns/ext/atom> for details.
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22
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23 @{
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24 */
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25
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26 #ifndef LV2_ATOM_H
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27 #define LV2_ATOM_H
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28
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29 #include <stdint.h>
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30 #include <stddef.h>
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31
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32 #define LV2_ATOM_URI "http://lv2plug.in/ns/ext/atom" ///< http://lv2plug.in/ns/ext/atom
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33 #define LV2_ATOM_PREFIX LV2_ATOM_URI "#" ///< http://lv2plug.in/ns/ext/atom#
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34
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35 #define LV2_ATOM__Atom LV2_ATOM_PREFIX "Atom" ///< http://lv2plug.in/ns/ext/atom#Atom
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36 #define LV2_ATOM__AtomPort LV2_ATOM_PREFIX "AtomPort" ///< http://lv2plug.in/ns/ext/atom#AtomPort
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37 #define LV2_ATOM__Blank LV2_ATOM_PREFIX "Blank" ///< http://lv2plug.in/ns/ext/atom#Blank
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38 #define LV2_ATOM__Bool LV2_ATOM_PREFIX "Bool" ///< http://lv2plug.in/ns/ext/atom#Bool
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39 #define LV2_ATOM__Chunk LV2_ATOM_PREFIX "Chunk" ///< http://lv2plug.in/ns/ext/atom#Chunk
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40 #define LV2_ATOM__Double LV2_ATOM_PREFIX "Double" ///< http://lv2plug.in/ns/ext/atom#Double
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41 #define LV2_ATOM__Event LV2_ATOM_PREFIX "Event" ///< http://lv2plug.in/ns/ext/atom#Event
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42 #define LV2_ATOM__Float LV2_ATOM_PREFIX "Float" ///< http://lv2plug.in/ns/ext/atom#Float
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43 #define LV2_ATOM__Int LV2_ATOM_PREFIX "Int" ///< http://lv2plug.in/ns/ext/atom#Int
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44 #define LV2_ATOM__Literal LV2_ATOM_PREFIX "Literal" ///< http://lv2plug.in/ns/ext/atom#Literal
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45 #define LV2_ATOM__Long LV2_ATOM_PREFIX "Long" ///< http://lv2plug.in/ns/ext/atom#Long
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46 #define LV2_ATOM__Number LV2_ATOM_PREFIX "Number" ///< http://lv2plug.in/ns/ext/atom#Number
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47 #define LV2_ATOM__Object LV2_ATOM_PREFIX "Object" ///< http://lv2plug.in/ns/ext/atom#Object
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48 #define LV2_ATOM__Path LV2_ATOM_PREFIX "Path" ///< http://lv2plug.in/ns/ext/atom#Path
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49 #define LV2_ATOM__Property LV2_ATOM_PREFIX "Property" ///< http://lv2plug.in/ns/ext/atom#Property
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50 #define LV2_ATOM__Resource LV2_ATOM_PREFIX "Resource" ///< http://lv2plug.in/ns/ext/atom#Resource
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51 #define LV2_ATOM__Sequence LV2_ATOM_PREFIX "Sequence" ///< http://lv2plug.in/ns/ext/atom#Sequence
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52 #define LV2_ATOM__Sound LV2_ATOM_PREFIX "Sound" ///< http://lv2plug.in/ns/ext/atom#Sound
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53 #define LV2_ATOM__String LV2_ATOM_PREFIX "String" ///< http://lv2plug.in/ns/ext/atom#String
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54 #define LV2_ATOM__Tuple LV2_ATOM_PREFIX "Tuple" ///< http://lv2plug.in/ns/ext/atom#Tuple
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55 #define LV2_ATOM__URI LV2_ATOM_PREFIX "URI" ///< http://lv2plug.in/ns/ext/atom#URI
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56 #define LV2_ATOM__URID LV2_ATOM_PREFIX "URID" ///< http://lv2plug.in/ns/ext/atom#URID
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57 #define LV2_ATOM__Vector LV2_ATOM_PREFIX "Vector" ///< http://lv2plug.in/ns/ext/atom#Vector
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58 #define LV2_ATOM__atomTransfer LV2_ATOM_PREFIX "atomTransfer" ///< http://lv2plug.in/ns/ext/atom#atomTransfer
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59 #define LV2_ATOM__beatTime LV2_ATOM_PREFIX "beatTime" ///< http://lv2plug.in/ns/ext/atom#beatTime
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60 #define LV2_ATOM__bufferType LV2_ATOM_PREFIX "bufferType" ///< http://lv2plug.in/ns/ext/atom#bufferType
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61 #define LV2_ATOM__childType LV2_ATOM_PREFIX "childType" ///< http://lv2plug.in/ns/ext/atom#childType
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62 #define LV2_ATOM__eventTransfer LV2_ATOM_PREFIX "eventTransfer" ///< http://lv2plug.in/ns/ext/atom#eventTransfer
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63 #define LV2_ATOM__frameTime LV2_ATOM_PREFIX "frameTime" ///< http://lv2plug.in/ns/ext/atom#frameTime
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64 #define LV2_ATOM__supports LV2_ATOM_PREFIX "supports" ///< http://lv2plug.in/ns/ext/atom#supports
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65 #define LV2_ATOM__timeUnit LV2_ATOM_PREFIX "timeUnit" ///< http://lv2plug.in/ns/ext/atom#timeUnit
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66
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67 #define LV2_ATOM_REFERENCE_TYPE 0 ///< The special type for a reference atom
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68
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69 #ifdef __cplusplus
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70 extern "C" {
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71 #endif
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72
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73 /** @cond */
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74 /** This expression will fail to compile if double does not fit in 64 bits. */
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75 typedef char lv2_atom_assert_double_fits_in_64_bits[
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76 ((sizeof(double) <= sizeof(uint64_t)) * 2) - 1];
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77 /** @endcond */
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78
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79 /**
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80 Return a pointer to the contents of an Atom. The "contents" of an atom
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81 is the data past the complete type-specific header.
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82 @param type The type of the atom, e.g. LV2_Atom_String.
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83 @param atom A variable-sized atom.
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84 */
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85 #define LV2_ATOM_CONTENTS(type, atom) \
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86 ((uint8_t*)(atom) + sizeof(type))
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87
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88 /**
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89 Const version of LV2_ATOM_CONTENTS.
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90 */
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91 #define LV2_ATOM_CONTENTS_CONST(type, atom) \
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92 ((const uint8_t*)(atom) + sizeof(type))
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93
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94 /**
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95 Return a pointer to the body of an Atom. The "body" of an atom is the
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96 data just past the LV2_Atom head (i.e. the same offset for all types).
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97 */
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98 #define LV2_ATOM_BODY(atom) LV2_ATOM_CONTENTS(LV2_Atom, atom)
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99
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100 /**
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101 Const version of LV2_ATOM_BODY.
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102 */
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103 #define LV2_ATOM_BODY_CONST(atom) LV2_ATOM_CONTENTS_CONST(LV2_Atom, atom)
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104
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105 /** The header of an atom:Atom. */
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106 typedef struct {
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107 uint32_t size; /**< Size in bytes, not including type and size. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
108 uint32_t type; /**< Type of this atom (mapped URI). */
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prymula <prymula76@outlook.com>
parents:
diff changeset
109 } LV2_Atom;
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prymula <prymula76@outlook.com>
parents:
diff changeset
110
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
111 /** An atom:Int or atom:Bool. May be cast to LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
112 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
113 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
114 int32_t body; /**< Integer value. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
115 } LV2_Atom_Int;
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prymula <prymula76@outlook.com>
parents:
diff changeset
116
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prymula <prymula76@outlook.com>
parents:
diff changeset
117 /** An atom:Long. May be cast to LV2_Atom. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
118 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
119 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
120 int64_t body; /**< Integer value. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
121 } LV2_Atom_Long;
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prymula <prymula76@outlook.com>
parents:
diff changeset
122
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prymula <prymula76@outlook.com>
parents:
diff changeset
123 /** An atom:Float. May be cast to LV2_Atom. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
124 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
125 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
126 float body; /**< Floating point value. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
127 } LV2_Atom_Float;
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prymula <prymula76@outlook.com>
parents:
diff changeset
128
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
129 /** An atom:Double. May be cast to LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
130 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
131 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
132 double body; /**< Floating point value. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
133 } LV2_Atom_Double;
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prymula <prymula76@outlook.com>
parents:
diff changeset
134
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prymula <prymula76@outlook.com>
parents:
diff changeset
135 /** An atom:Bool. May be cast to LV2_Atom. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
136 typedef LV2_Atom_Int LV2_Atom_Bool;
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prymula <prymula76@outlook.com>
parents:
diff changeset
137
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
138 /** An atom:URID. May be cast to LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
139 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
140 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
141 uint32_t body; /**< URID. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
142 } LV2_Atom_URID;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
143
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
144 /** An atom:String. May be cast to LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
145 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
146 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
147 /* Contents (a null-terminated UTF-8 string) follow here. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
148 } LV2_Atom_String;
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prymula <prymula76@outlook.com>
parents:
diff changeset
149
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
150 /** The body of an atom:Literal. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
151 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
152 uint32_t datatype; /**< Datatype URID. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
153 uint32_t lang; /**< Language URID. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
154 /* Contents (a null-terminated UTF-8 string) follow here. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
155 } LV2_Atom_Literal_Body;
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prymula <prymula76@outlook.com>
parents:
diff changeset
156
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
157 /** An atom:Literal. May be cast to LV2_Atom. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
158 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
159 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
160 LV2_Atom_Literal_Body body; /**< Body. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
161 } LV2_Atom_Literal;
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prymula <prymula76@outlook.com>
parents:
diff changeset
162
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
163 /** An atom:Tuple. May be cast to LV2_Atom. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
164 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
165 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
166 /* Contents (a series of complete atoms) follow here. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
167 } LV2_Atom_Tuple;
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prymula <prymula76@outlook.com>
parents:
diff changeset
168
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
169 /** The body of an atom:Vector. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
170 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
171 uint32_t child_size; /**< The size of each element in the vector. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
172 uint32_t child_type; /**< The type of each element in the vector. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
173 /* Contents (a series of packed atom bodies) follow here. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
174 } LV2_Atom_Vector_Body;
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prymula <prymula76@outlook.com>
parents:
diff changeset
175
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
176 /** An atom:Vector. May be cast to LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
177 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
178 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
179 LV2_Atom_Vector_Body body; /**< Body. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
180 } LV2_Atom_Vector;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
181
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
182 /** The body of an atom:Property (e.g. in an atom:Object). */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
183 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
184 uint32_t key; /**< Key (predicate) (mapped URI). */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
185 uint32_t context; /**< Context URID (may be, and generally is, 0). */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
186 LV2_Atom value; /**< Value atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
187 /* Value atom body follows here. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
188 } LV2_Atom_Property_Body;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
189
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
190 /** An atom:Property. May be cast to LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
191 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
192 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
193 LV2_Atom_Property_Body body; /**< Body. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
194 } LV2_Atom_Property;
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prymula <prymula76@outlook.com>
parents:
diff changeset
195
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
196 /** The body of an atom:Object. May be cast to LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
197 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
198 uint32_t id; /**< URID, or 0 for blank. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
199 uint32_t otype; /**< Type URID (same as rdf:type, for fast dispatch). */
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prymula <prymula76@outlook.com>
parents:
diff changeset
200 /* Contents (a series of property bodies) follow here. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
201 } LV2_Atom_Object_Body;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
202
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
203 /** An atom:Object. May be cast to LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
204 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
205 LV2_Atom atom; /**< Atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
206 LV2_Atom_Object_Body body; /**< Body. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
207 } LV2_Atom_Object;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
208
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
209 /** The header of an atom:Event. Note this type is NOT an LV2_Atom. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
210 typedef struct {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
211 /** Time stamp. Which type is valid is determined by context. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
212 union {
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
213 int64_t frames; /**< Time in audio frames. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
214 double beats; /**< Time in beats. */
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prymula <prymula76@outlook.com>
parents:
diff changeset
215 } time;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
216 LV2_Atom body; /**< Event body atom header. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
217 /* Body atom contents follow here. */
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
218 } LV2_Atom_Event;
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
219
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
220 /**
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
221 The body of an atom:Sequence (a sequence of events).
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
222
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
223 The unit field is either a URID that described an appropriate time stamp
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
224 type, or may be 0 where a default stamp type is known. For
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
225 LV2_Descriptor::run(), the default stamp type is audio frames.
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
226
84e66ea83026 DPF-Prymula-audioplugins-0.231015-2
prymula <prymula76@outlook.com>
parents:
diff changeset
227 The contents of a sequence is a series of LV2_Atom_Event, each aligned
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228 to 64-bits, e.g.:
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229 <pre>
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230 | Event 1 (size 6) | Event 2
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231 | | | | | | | | |
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232 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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233 |FRAMES |SUBFRMS|TYPE |SIZE |DATADATADATAPAD|FRAMES |SUBFRMS|...
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234 </pre>
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235 */
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236 typedef struct {
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237 uint32_t unit; /**< URID of unit of event time stamps. */
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238 uint32_t pad; /**< Currently unused. */
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239 /* Contents (a series of events) follow here. */
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240 } LV2_Atom_Sequence_Body;
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241
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242 /** An atom:Sequence. */
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243 typedef struct {
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244 LV2_Atom atom; /**< Atom header. */
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245 LV2_Atom_Sequence_Body body; /**< Body. */
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246 } LV2_Atom_Sequence;
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247
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248 /**
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249 @}
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250 */
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251
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252 #ifdef __cplusplus
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253 } /* extern "C" */
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254 #endif
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255
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256 #endif /* LV2_ATOM_H */