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comparison DPF-Prymula-audioplugins/dpf/distrho/src/travesty/component.h @ 3:84e66ea83026

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DPF-Prymula-audioplugins-0.231015-2
author prymula <prymula76@outlook.com>
date Mon, 16 Oct 2023 21:53:34 +0200
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2:cf2cb71d31dd 3:84e66ea83026
1 /*
2 * travesty, pure C VST3-compatible interface
3 * Copyright (C) 2021-2022 Filipe Coelho <falktx@falktx.com>
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any purpose with
6 * or without fee is hereby granted, provided that the above copyright notice and this
7 * permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
10 * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
11 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
12 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #pragma once
18
19 #include "base.h"
20 #include "bstream.h"
21
22 #include "align_push.h"
23
24 /**
25 * buses
26 */
27
28 enum v3_media_types {
29 V3_AUDIO = 0,
30 V3_EVENT
31 };
32
33 static inline
34 const char* v3_media_type_str(int32_t type)
35 {
36 switch (type)
37 {
38 case V3_AUDIO:
39 return "V3_AUDIO";
40 case V3_EVENT:
41 return "V3_EVENT";
42 default:
43 return "[unknown]";
44 }
45 }
46
47 enum v3_bus_direction {
48 V3_INPUT = 0,
49 V3_OUTPUT
50 };
51
52 static inline
53 const char* v3_bus_direction_str(int32_t d)
54 {
55 switch (d)
56 {
57 case V3_INPUT:
58 return "V3_INPUT";
59 case V3_OUTPUT:
60 return "V3_OUTPUT";
61 default:
62 return "[unknown]";
63 }
64 }
65
66 enum v3_bus_types {
67 V3_MAIN = 0,
68 V3_AUX
69 };
70
71 enum v3_bus_flags {
72 V3_DEFAULT_ACTIVE = 1 << 0,
73 V3_IS_CONTROL_VOLTAGE = 1 << 1
74 };
75
76 enum v3_io_mode {
77 V3_SIMPLE = 0,
78 V3_ADVANCED,
79 V3_OFFLINE_PROCESSING
80 };
81
82 struct v3_bus_info {
83 int32_t media_type;
84 int32_t direction;
85 int32_t channel_count;
86 v3_str_128 bus_name;
87 int32_t bus_type;
88 uint32_t flags;
89 };
90
91 struct v3_routing_info {
92 int32_t media_type;
93 int32_t bus_idx;
94 int32_t channel;
95 };
96
97 /**
98 * component
99 */
100
101 struct v3_component {
102 #ifndef __cplusplus
103 struct v3_plugin_base;
104 #endif
105 v3_result (V3_API *get_controller_class_id)(void* self, v3_tuid class_id);
106 v3_result (V3_API *set_io_mode)(void* self, int32_t io_mode);
107 int32_t (V3_API *get_bus_count)(void* self, int32_t media_type, int32_t bus_direction);
108 v3_result (V3_API *get_bus_info)(void* self, int32_t media_type, int32_t bus_direction,
109 int32_t bus_idx, struct v3_bus_info* bus_info);
110 v3_result (V3_API *get_routing_info)(void* self, struct v3_routing_info* input, struct v3_routing_info* output);
111 v3_result (V3_API *activate_bus)(void* self, int32_t media_type, int32_t bus_direction,
112 int32_t bus_idx, v3_bool state);
113 v3_result (V3_API *set_active)(void* self, v3_bool state);
114 v3_result (V3_API *set_state)(void* self, struct v3_bstream **);
115 v3_result (V3_API *get_state)(void* self, struct v3_bstream **);
116 };
117
118 static constexpr const v3_tuid v3_component_iid =
119 V3_ID(0xE831FF31, 0xF2D54301, 0x928EBBEE, 0x25697802);
120
121 #ifdef __cplusplus
122
123 /**
124 * C++ variants
125 */
126
127 struct v3_component_cpp : v3_funknown {
128 v3_plugin_base base;
129 v3_component comp;
130 };
131
132 template<> inline
133 constexpr v3_component* v3_cpp_obj(v3_component** obj)
134 {
135 /**
136 * this ugly piece of code is required due to C++ assuming `reinterpret_cast` by default,
137 * but we need everything to be `static_cast` for it to be `constexpr` compatible.
138 */
139 return static_cast<v3_component*>(
140 static_cast<void*>(static_cast<uint8_t*>(static_cast<void*>(*obj)) + sizeof(void*)*5));
141 }
142
143 #endif
144
145 #include "align_pop.h"