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comparison DPF-Prymula-audioplugins/dpf/distrho/src/travesty/factory.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
21 /**
22 * plugin factory v1
23 */
24
25 struct v3_factory_info {
26 char vendor[64];
27 char url[256];
28 char email[128];
29 int32_t flags; // set to 0x10 (unicode)
30 };
31
32 struct v3_class_info {
33 v3_tuid class_id;
34 int32_t cardinality; // set to 0x7FFFFFFF (many instances)
35 char category[32];
36 char name[64];
37 };
38
39 struct v3_plugin_factory {
40 #ifndef __cplusplus
41 struct v3_funknown;
42 #endif
43 v3_result (V3_API *get_factory_info)(void* self, struct v3_factory_info*);
44 int32_t (V3_API *num_classes)(void* self);
45 v3_result (V3_API *get_class_info)(void* self, int32_t idx, struct v3_class_info*);
46 v3_result (V3_API *create_instance)(void* self, const v3_tuid class_id, const v3_tuid iid, void** instance);
47 };
48
49 static constexpr const v3_tuid v3_plugin_factory_iid =
50 V3_ID(0x7A4D811C, 0x52114A1F, 0xAED9D2EE, 0x0B43BF9F);
51
52 /**
53 * plugin factory v2
54 */
55
56 enum {
57 V3_DISTRIBUTABLE = 1 << 0,
58 V3_SIMPLE_MODE = 1 << 1
59 };
60
61 struct v3_class_info_2 {
62 v3_tuid class_id;
63 int32_t cardinality; // set to 0x7FFFFFFF
64 char category[32];
65 char name[64];
66 uint32_t class_flags;
67 char sub_categories[128];
68 char vendor[64];
69 char version[64];
70 char sdk_version[64];
71 };
72
73 struct v3_plugin_factory_2 {
74 #ifndef __cplusplus
75 struct v3_plugin_factory;
76 #endif
77 v3_result (V3_API *get_class_info_2)(void* self, int32_t idx, struct v3_class_info_2*);
78 };
79
80 static constexpr const v3_tuid v3_plugin_factory_2_iid =
81 V3_ID(0x0007B650, 0xF24B4C0B, 0xA464EDB9, 0xF00B2ABB);
82
83 /**
84 * plugin factory v3
85 * (we got it right this time I swear)
86 *
87 * same as above, but "unicode" (really just utf-16, thanks microsoft!)
88 */
89
90 struct v3_class_info_3 {
91 v3_tuid class_id;
92 int32_t cardinality; // set to 0x7FFFFFFF
93 char category[32];
94 int16_t name[64];
95 uint32_t class_flags;
96 char sub_categories[128];
97 int16_t vendor[64];
98 int16_t version[64];
99 int16_t sdk_version[64];
100 };
101
102 struct v3_plugin_factory_3 {
103 #ifndef __cplusplus
104 struct v3_plugin_factory_2;
105 #endif
106 v3_result (V3_API *get_class_info_utf16)(void* self, int32_t idx, struct v3_class_info_3*);
107 v3_result (V3_API *set_host_context)(void* self, struct v3_funknown** host);
108 };
109
110 static constexpr const v3_tuid v3_plugin_factory_3_iid =
111 V3_ID(0x4555A2AB, 0xC1234E57, 0x9B122910, 0x36878931);
112
113 #ifdef __cplusplus
114
115 /**
116 * C++ variants
117 */
118
119 struct v3_plugin_factory_cpp : v3_funknown {
120 v3_plugin_factory v1;
121 v3_plugin_factory_2 v2;
122 v3_plugin_factory_3 v3;
123 };
124
125 template<> inline
126 constexpr v3_plugin_factory_2* v3_cpp_obj(v3_plugin_factory_2** obj)
127 {
128 /**
129 * this ugly piece of code is required due to C++ assuming `reinterpret_cast` by default,
130 * but we need everything to be `static_cast` for it to be `constexpr` compatible.
131 */
132 return static_cast<v3_plugin_factory_2*>(
133 static_cast<void*>(static_cast<uint8_t*>(static_cast<void*>(*obj)) + sizeof(void*)*7));
134 }
135
136 template<> inline
137 constexpr v3_plugin_factory_3* v3_cpp_obj(v3_plugin_factory_3** obj)
138 {
139 /**
140 * this ugly piece of code is required due to C++ assuming `reinterpret_cast` by default,
141 * but we need everything to be `static_cast` for it to be `constexpr` compatible.
142 */
143 return static_cast<v3_plugin_factory_3*>(
144 static_cast<void*>(static_cast<uint8_t*>(static_cast<void*>(*obj)) + sizeof(void*)*8));
145 }
146
147 #endif