forked from mia/Aegisub
148 lines
3.6 KiB
C
148 lines
3.6 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 <stddef.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "csrilib.h"
|
|
|
|
struct csri_wrap_rend *wraprends = NULL;
|
|
|
|
struct csri_wrap_rend *csrilib_rend_lookup(csri_rend *rend)
|
|
{
|
|
struct csri_wrap_rend *wrap = wraprends;
|
|
for (; wrap; wrap = wrap->next)
|
|
if (wrap->rend == rend)
|
|
return wrap;
|
|
return NULL;
|
|
}
|
|
|
|
#define INSTHASHSZ 256
|
|
#define HASH(x) (((intptr_t)(x) & 0xff00) >> 8)
|
|
static struct csri_wrap_inst *wrapinsts[INSTHASHSZ];
|
|
|
|
struct csri_wrap_inst *csrilib_inst_lookup(csri_inst *inst)
|
|
{
|
|
struct csri_wrap_inst *ent = wrapinsts[HASH(inst)];
|
|
while (ent && ent->inst != inst)
|
|
ent = ent->next;
|
|
return ent;
|
|
}
|
|
|
|
csri_inst *csrilib_inst_initadd(struct csri_wrap_rend *wrend,
|
|
csri_inst *inst)
|
|
{
|
|
struct csri_wrap_inst *winst = (struct csri_wrap_inst *)
|
|
malloc(sizeof(struct csri_wrap_inst)),
|
|
**pnext;
|
|
if (!winst) {
|
|
wrend->close(inst);
|
|
return NULL;
|
|
}
|
|
winst->wrend = wrend;
|
|
winst->inst = inst;
|
|
winst->close = wrend->close;
|
|
winst->request_fmt = wrend->request_fmt;
|
|
winst->render = wrend->render;
|
|
winst->next = NULL;
|
|
pnext = &wrapinsts[HASH(inst)];
|
|
while (*pnext)
|
|
pnext = &(*pnext)->next;
|
|
*pnext = winst;
|
|
return inst;
|
|
}
|
|
|
|
void csrilib_inst_remove(struct csri_wrap_inst *winst)
|
|
{
|
|
struct csri_wrap_inst **pnext = &wrapinsts[HASH(winst->inst)];
|
|
while (*pnext && *pnext != winst)
|
|
pnext = &(*pnext)->next;
|
|
if (!*pnext)
|
|
return;
|
|
*pnext = (*pnext)->next;
|
|
}
|
|
|
|
void csrilib_rend_initadd(struct csri_wrap_rend *wrend)
|
|
{
|
|
wrend->next = wraprends;
|
|
wraprends = wrend;
|
|
}
|
|
|
|
static int initialized = 0;
|
|
|
|
csri_rend *csri_renderer_default()
|
|
{
|
|
if (!initialized) {
|
|
csrilib_os_init();
|
|
initialized = 1;
|
|
}
|
|
if (!wraprends)
|
|
return NULL;
|
|
return wraprends->rend;
|
|
}
|
|
|
|
csri_rend *csri_renderer_next(csri_rend *prev)
|
|
{
|
|
struct csri_wrap_rend *wrend = csrilib_rend_lookup(prev);
|
|
if (!wrend || !wrend->next)
|
|
return NULL;
|
|
return wrend->next->rend;
|
|
}
|
|
|
|
csri_rend *csri_renderer_byname(const char *name, const char *specific)
|
|
{
|
|
struct csri_wrap_rend *wrend;
|
|
if (!initialized) {
|
|
csrilib_os_init();
|
|
initialized = 1;
|
|
}
|
|
if (!name)
|
|
return NULL;
|
|
for (wrend = wraprends; wrend; wrend = wrend->next) {
|
|
if (strcmp(wrend->info->name, name))
|
|
continue;
|
|
if (specific && strcmp(wrend->info->specific, specific))
|
|
continue;
|
|
return wrend->rend;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
csri_rend *csri_renderer_byext(unsigned n_ext, csri_ext_id *ext)
|
|
{
|
|
struct csri_wrap_rend *wrend;
|
|
unsigned i;
|
|
if (!initialized) {
|
|
csrilib_os_init();
|
|
initialized = 1;
|
|
}
|
|
for (wrend = wraprends; wrend; wrend = wrend->next) {
|
|
for (i = 0; i < n_ext; i++) {
|
|
if (!wrend->query_ext(wrend->rend, ext[i]))
|
|
break;
|
|
}
|
|
if (i == n_ext)
|
|
return wrend->rend;
|
|
}
|
|
return NULL;
|
|
}
|
|
|