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Adding missing lv2_urid_helper.h file
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mr.fantastic
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May 24, 2024
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/* | ||
* LV2 URID Helpers | ||
* | ||
* Adapted from lv2bench.c from lilv project https://drobilla.net/software/lilv.html - http://gitlab.com/lv2/lilv.git | ||
* | ||
* Copyright (C) David Robillard 2012-2019 (d@drobilla.net) | ||
* Copyright (C) mr.fantastic (mrfantastic@firemail.cc) and MLT project 2024 | ||
* | ||
* ISC License | ||
* SPDX-License-Identifier: ISC | ||
* | ||
* Permission to use, copy, modify, and/or distribute this software for any | ||
* purpose with or without fee is hereby granted, provided that the above | ||
* copyright notice and this permission notice appear in all copies. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH | ||
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | ||
* FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, | ||
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM | ||
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR | ||
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | ||
* PERFORMANCE OF THIS SOFTWARE. | ||
*/ | ||
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#ifndef __LV2_URID_HELPER_H__ | ||
#define __LV2_URID_HELPER_H__ | ||
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typedef struct { | ||
char** uris; | ||
size_t n_uris; | ||
} URITable; | ||
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static void | ||
uri_table_init(URITable* table) | ||
{ | ||
table->uris = NULL; | ||
table->n_uris = 0; | ||
} | ||
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static LV2_URID | ||
uri_table_map(LV2_URID_Map_Handle handle, const char* uri) | ||
{ | ||
URITable* table = (URITable*)handle; | ||
for (size_t i = 0; i < table->n_uris; ++i) { | ||
if (!strcmp(table->uris[i], uri)) { | ||
return i + 1; | ||
} | ||
} | ||
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const size_t len = strlen(uri); | ||
table->uris = (char**)realloc(table->uris, ++table->n_uris * sizeof(char*)); | ||
table->uris[table->n_uris - 1] = (char*)malloc(len + 1); | ||
memcpy(table->uris[table->n_uris - 1], uri, len + 1); | ||
return table->n_uris; | ||
} | ||
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static const char* | ||
uri_table_unmap(LV2_URID_Map_Handle handle, LV2_URID urid) | ||
{ | ||
URITable* table = (URITable*)handle; | ||
if (urid > 0 && urid <= table->n_uris) { | ||
return table->uris[urid - 1]; | ||
} | ||
return NULL; | ||
} | ||
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#endif /* __LV2_URID_HELPER_H__ */ |