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/*
* Copyright (C) 2021 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2021 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-plugin-fw
* Created on: 7 дек. 2021 г.
*
* lsp-plugin-fw is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-plugin-fw is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-plugin-fw. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_PLUG_FW_WRAP_VST2_HELPERS_H_
#define LSP_PLUG_IN_PLUG_FW_WRAP_VST2_HELPERS_H_
#include <lsp-plug.in/plug-fw/version.h>
#include <lsp-plug.in/plug-fw/meta/types.h>
#include <lsp-plug.in/plug-fw/plug.h>
#include <lsp-plug.in/common/alloc.h>
#include <lsp-plug.in/common/debug.h>
#include <lsp-plug.in/common/types.h>
#include <lsp-plug.in/stdlib/string.h>
namespace lsp
{
namespace vst2
{
inline plug::mesh_t *create_mesh(const meta::port_t *meta)
{
size_t buffers = meta->step;
size_t buf_size = meta->start * sizeof(float);
size_t mesh_size = sizeof(plug::mesh_t) + sizeof(float *) * buffers;
// Align values to 64-byte boundaries
buf_size = align_size(buf_size, 0x40);
mesh_size = align_size(mesh_size, 0x40);
// Allocate pointer
uint8_t *ptr = new uint8_t[mesh_size + buf_size * buffers];
if (ptr == NULL)
return NULL;
// Initialize references
plug::mesh_t *mesh = reinterpret_cast<plug::mesh_t *>(ptr);
mesh->nState = plug::M_EMPTY;
mesh->nBuffers = 0;
mesh->nItems = 0;
ptr += mesh_size;
for (size_t i=0; i<buffers; ++i)
{
mesh->pvData[i] = reinterpret_cast<float *>(ptr);
ptr += buf_size;
}
return mesh;
}
inline void destroy_mesh(plug::mesh_t *mesh)
{
if (mesh != NULL)
delete [] reinterpret_cast<uint8_t *>(mesh);
}
inline ssize_t serialize_string(const char *str, uint8_t *buf, size_t len)
{
lsp_trace("str=%s, buf=%p, len=%d", str, buf, int(len));
size_t slen = strlen(str);
if (slen > 0xff)
slen = 0xff;
if ((slen + 1) > len)
return -1;
*(buf++) = slen;
memcpy(buf, str, slen);
return slen + 1;
}
inline ssize_t deserialize_string(char *str, size_t maxlen, const uint8_t *buf, size_t len)
{
lsp_trace("str=%p, maxlen=%d, buf=%p, len=%d", str, int(maxlen), buf, int(len));
if ((len--) <= 0)
return -1;
size_t slen = *(buf++);
if (slen > len)
return -1;
if ((slen + 1) > maxlen)
return -2;
memcpy(str, buf, slen);
str[slen] = '\0';
lsp_trace("str=%s", str);
return slen + 1;
}
} /* namespace lsp */
} /* namespace vst2 */
#endif /* LSP_PLUG_IN_PLUG_FW_WRAP_VST2_HELPERS_H_ */
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