85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/* FluidSynth - A Software Synthesizer
|
|
*
|
|
* Copyright (C) 2003 Peter Hanappe and others.
|
|
*
|
|
* This library 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 2.1 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This library 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 this library; if not, write to the Free
|
|
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
* 02110-1301, USA
|
|
*/
|
|
|
|
#ifndef _FLUIDSYNTH_LOG_H
|
|
#define _FLUIDSYNTH_LOG_H
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/**
|
|
* @file log.h
|
|
* @brief Logging interface
|
|
*
|
|
* The default logging function of the fluidsynth prints its messages
|
|
* to the stderr. The synthesizer uses five level of messages: #FLUID_PANIC,
|
|
* #FLUID_ERR, #FLUID_WARN, #FLUID_INFO, and #FLUID_DBG.
|
|
*
|
|
* A client application can install a new log function to handle the
|
|
* messages differently. In the following example, the application
|
|
* sets a callback function to display #FLUID_PANIC messages in a dialog,
|
|
* and ignores all other messages by setting the log function to
|
|
* NULL:
|
|
*
|
|
* @code
|
|
* fluid_set_log_function(FLUID_PANIC, show_dialog, (void*) root_window);
|
|
* fluid_set_log_function(FLUID_ERR, NULL, NULL);
|
|
* fluid_set_log_function(FLUID_WARN, NULL, NULL);
|
|
* fluid_set_log_function(FLUID_DBG, NULL, NULL);
|
|
* @endcode
|
|
*/
|
|
|
|
/**
|
|
* FluidSynth log levels.
|
|
*/
|
|
enum fluid_log_level {
|
|
FLUID_PANIC, /**< The synth can't function correctly any more */
|
|
FLUID_ERR, /**< Serious error occurred */
|
|
FLUID_WARN, /**< Warning */
|
|
FLUID_INFO, /**< Verbose informational messages */
|
|
FLUID_DBG, /**< Debugging messages */
|
|
LAST_LOG_LEVEL /**< @deprecated As of 1.1.7 this enum value is deprecated and will be removed in a future release, because it prevents adding new enum values without breaking ABI compatibility. */
|
|
};
|
|
|
|
/**
|
|
* Log function handler callback type used by fluid_set_log_function().
|
|
* @param level Log level (#fluid_log_level)
|
|
* @param message Log message text
|
|
* @param data User data pointer supplied to fluid_set_log_function().
|
|
*/
|
|
typedef void (*fluid_log_function_t)(int level, char* message, void* data);
|
|
|
|
FLUIDSYNTH_API
|
|
fluid_log_function_t fluid_set_log_function(int level, fluid_log_function_t fun, void* data);
|
|
|
|
FLUIDSYNTH_API void fluid_default_log_function(int level, char* message, void* data);
|
|
|
|
FLUIDSYNTH_API int fluid_log(int level, const char *fmt, ...);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _FLUIDSYNTH_LOG_H */
|