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63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
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/* utils.h
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Free software by Richard W.E. Furse. Do with as you will. No
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warranty. */
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#ifndef LADSPA_SDK_LOAD_PLUGIN_LIB
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#define LADSPA_SDK_LOAD_PLUGIN_LIB
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/*****************************************************************************/
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#include "ladspa.h"
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/*****************************************************************************/
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/* Functions in load.c: */
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/* This function call takes a plugin library filename, searches for
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the library along the LADSPA_PATH, loads it with dlopen() and
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returns a plugin handle for use with findPluginDescriptor() or
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unloadLADSPAPluginLibrary(). Errors are handled by writing a
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message to stderr and calling exit(1). It is alright (although
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inefficient) to call this more than once for the same file. */
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void * loadLADSPAPluginLibrary(const char * pcPluginFilename);
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/* This function unloads a LADSPA plugin library. */
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void unloadLADSPAPluginLibrary(void * pvLADSPAPluginLibrary);
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/* This function locates a LADSPA plugin within a plugin library
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loaded with loadLADSPAPluginLibrary(). Errors are handled by
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writing a message to stderr and calling exit(1). Note that the
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plugin library filename is only included to help provide
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informative error messages. */
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const LADSPA_Descriptor *
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findLADSPAPluginDescriptor(void * pvLADSPAPluginLibrary,
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const char * pcPluginLibraryFilename,
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const char * pcPluginLabel);
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/*****************************************************************************/
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/* Functions in search.c: */
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/* Callback function for use with LADSPAPluginSearch(). The callback
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function passes the filename (full path), a plugin handle (dlopen()
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style) and a LADSPA_DescriptorFunction (from which
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LADSPA_Descriptors can be acquired). */
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typedef void LADSPAPluginSearchCallbackFunction
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(const char * pcFullFilename,
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void * pvPluginHandle,
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LADSPA_Descriptor_Function fDescriptorFunction);
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/* Search through the $(LADSPA_PATH) (or a default path) for any
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LADSPA plugin libraries. Each plugin library is tested using
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dlopen() and dlsym(,"ladspa_descriptor"). After loading each
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library, the callback function is called to process it. This
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function leaves items passed to the callback function open. */
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void LADSPAPluginSearch(LADSPAPluginSearchCallbackFunction fCallbackFunction);
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/*****************************************************************************/
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#endif
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/* EOF */
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