Aegisub/contrib/csri/lib/wrap.c

119 lines
3.4 KiB
C

/*****************************************************************************
* asa: portable digital subtitle renderer
*****************************************************************************
* Copyright (C) 2007 David Lamparter
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
****************************************************************************/
#include "csrilib.h"
#include "subhelp.h"
#include <string.h>
csri_inst *csri_open_file(csri_rend *rend,
const char *filename, struct csri_openflag *flags)
{
struct csri_wrap_rend *wrend = csrilib_rend_lookup(rend);
if (!wrend)
return NULL;
return csrilib_inst_initadd(wrend,
wrend->open_file(rend, filename, flags));
}
#define instance_wrapper(wrapname, funcname) \
csri_inst *wrapname(csri_rend *rend, \
const void *data, size_t length, struct csri_openflag *flags) \
{ \
struct csri_wrap_rend *wrend = csrilib_rend_lookup(rend); \
if (!wrend) \
return NULL; \
return csrilib_inst_initadd(wrend, \
wrend->funcname(rend, data, length, flags)); \
}
instance_wrapper(csri_open_mem, open_mem)
static instance_wrapper(wrap_init_stream_ass, init_stream_ass)
static instance_wrapper(wrap_init_stream_text, init_stream_text)
void *csri_query_ext(csri_rend *rend, csri_ext_id extname)
{
struct csri_wrap_rend *wrend;
void *rv;
if (!rend && (rv = subhelp_query_ext_logging(extname)))
return rv;
wrend = csrilib_rend_lookup(rend);
if (!wrend)
return NULL;
rv = wrend->query_ext(rend, extname);
if (rv && !strcmp(extname, CSRI_EXT_STREAM_ASS)) {
struct csri_stream_ext *e = (struct csri_stream_ext *)rv;
memcpy(&wrend->stream_ass, e, sizeof(*e));
wrend->init_stream_ass = e->init_stream;
wrend->stream_ass.init_stream = wrap_init_stream_ass;
return &wrend->stream_ass;
}
if (rv && !strcmp(extname, CSRI_EXT_STREAM_TEXT)) {
struct csri_stream_ext *e = (struct csri_stream_ext *)rv;
memcpy(&wrend->stream_text, e, sizeof(*e));
wrend->init_stream_text = e->init_stream;
wrend->stream_text.init_stream = wrap_init_stream_text;
return &wrend->stream_text;
}
return rv;
}
struct csri_info *csri_renderer_info(csri_rend *rend)
{
struct csri_wrap_rend *wrend = csrilib_rend_lookup(rend);
if (!wrend)
return NULL;
return wrend->info;
}
void csri_close(csri_inst *inst)
{
struct csri_wrap_inst *winst = csrilib_inst_lookup(inst);
if (!winst)
return;
winst->close(inst);
csrilib_inst_remove(winst);
}
int csri_request_fmt(csri_inst *inst, const struct csri_fmt *fmt)
{
struct csri_wrap_inst *winst = csrilib_inst_lookup(inst);
if (!winst)
return 0;
return winst->request_fmt(inst, fmt);
}
void csri_render(csri_inst *inst, struct csri_frame *frame,
double time)
{
struct csri_wrap_inst *winst = csrilib_inst_lookup(inst);
if (!winst)
return;
winst->render(inst, frame, time);
}
const char *csri_library()
{
return "DEV";
}