107 lines
2.6 KiB
C
107 lines
2.6 KiB
C
/* LibSLV2
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* Copyright (C) 2006 Dave Robillard <drobilla@connect.carleton.ca>
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __SLV2_PORT_H__
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#define __SLV2_PORT_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "types.h"
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#include "plugin.h"
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/** \addtogroup data
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* @{
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*/
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/** Get a property of a port, by port index.
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*
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* Return value must be freed by caller with slv2_property_free.
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*/
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SLV2Property
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slv2_port_get_property(SLV2Plugin* plugin,
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uint32_t index,
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const char* property);
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/** Get the symbol of a port given the index.
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*
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* The 'symbol' is a short string, a valid C identifier.
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* Returned string must be free()'d by caller.
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*
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* \return NULL when index is out of range
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*/
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char*
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slv2_port_get_symbol(SLV2Plugin* plugin,
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uint32_t index);
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/** Get the class (direction and rate) of a port.
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*/
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enum SLV2PortClass
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slv2_port_get_class(SLV2Plugin* plugin,
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uint32_t index);
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/** Get the data type of a port (as a URI).
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*
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* The only data type included in the core LV2 specification is lv2:float.
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* Compare this return value with SLV2_DATA_TYPE_FLOAT to check for it.
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*/
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char*
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slv2_port_get_data_type(SLV2Plugin* plugin,
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uint32_t index);
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/** Get the default value of a port.
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*
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* Only valid for ports with a data type of lv2:float.
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*/
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float
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slv2_port_get_default_value(SLV2Plugin* plugin,
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uint32_t index);
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/** Get the minimum value of a port.
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*
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* Only valid for ports with a data type of lv2:float.
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*/
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float
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slv2_port_get_minimum_value(SLV2Plugin* plugin,
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uint32_t index);
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/** Get the maximum value of a port.
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*
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* Only valid for ports with a data type of lv2:float.
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*/
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float
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slv2_port_get_maximum_value(SLV2Plugin* plugin,
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uint32_t index);
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __SLV2_PORT_H__ */
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