forked from mia/Aegisub
115 lines
4.2 KiB
C
115 lines
4.2 KiB
C
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/*****************************************************************************
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* csri: common subtitle renderer interface
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*****************************************************************************
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* Copyright (C) 2007 David Lamparter
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
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****************************************************************************/
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/** \file subhelp.h - subtitle helper API.
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* $Id$ */
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#ifndef _SUBHELP_H
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#define _SUBHELP_H
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#include <stdarg.h>
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#include <csri/csri.h>
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#include <csri/logging.h>
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/** \defgroup subhelp subtitle filter helper API. */
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/*@{*/
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/** file opening wrapper.
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* can be used to implement csri_open_file() by using csri_open_mem().
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* \param renderer the renderer handle
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* \param memopenfunc function pointer to a csri_open_mem() implementation
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* \param filename name of file to open
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* \param flags pointer #csri_openflag.\n
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* subhelp_open_file will fill in csri.openerr if present
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* \return return value from memopenfunc or NULL on fs error
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*/
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extern csri_inst *subhelp_open_file(csri_rend *renderer,
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csri_inst *(*memopenfunc)(csri_rend *renderer, const void *data,
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size_t length, struct csri_openflag *flags),
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const char *filename, struct csri_openflag *flags);
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/** logging extension query function.
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* call from csri_query_ext BEFORE checking whether the renderer.
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* \code
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* void *csri_query_ext(csri_rend *rend, csri_ext_id extname) {
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* void *rv;
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* if ((rv = subhelp_query_ext_logging(extname)))
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* return rv;
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* if (!rend)
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* return NULL;
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* ...
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* \endcode
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* \param extname the extension name. compared to "csri.logging" by
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* this function.
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* \return logging extension pointer, if the extension name matched.
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* NULL otherwise.
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*/
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extern void *subhelp_query_ext_logging(csri_ext_id extname);
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/** configure other renderer with our settings.
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* \param logext csri.logging from configuree.
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*/
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extern void subhelp_logging_pass(struct csri_logging_ext *logext);
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/** logging function.
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* \param severity severity of this message, as defined by csri.logging
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* \param msg log message, one line, without \\n at the end.
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*/
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extern void subhelp_log(enum csri_logging_severity severity,
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const char *msg, ...)
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#ifdef __GNUC__
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__attribute__((format(printf, 2, 3)))
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#endif
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;
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/** logging function, varargs version.
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* \param severity severity of this message, as defined by csri.logging
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* \param msg log message, one line, without \\n at the end.
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* \param args argument list
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*/
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extern void subhelp_vlog(enum csri_logging_severity severity,
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const char *msg, va_list args)
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#ifdef __GNUC__
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__attribute__((format(printf, 2, 0)))
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#endif
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;
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/** logging function, fixed string version.
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* \param severity severity of this message, as defined by csri.logging
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* \param msg log message, one line, without \\n at the end.
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*/
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extern void subhelp_slog(enum csri_logging_severity severity, const char *msg);
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/*@}*/
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#endif /* _SUBHELP_H */
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