Aegisub/vsfilter/csriapi.cpp

222 lines
5.5 KiB
C++

/*
* Copyright (C) 2007 Niels Martin Hansen
* http://aegisub.net/
*
* 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, 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "stdafx.h"
#include <afxdlgs.h>
#include <atlpath.h>
#include "resource.h"
#include "subtitles/VobSubFile.h"
#include "subtitles/RTS.h"
#include "subtitles/SSF.h"
#include "SubPic/MemSubPic.h"
// Be sure to have <csri/csri.h> in include path
#define CSRIAPI extern "C" __declspec(dllexport)
#define CSRI_OWN_HANDLES
typedef const char *csri_rend;
extern "C" struct csri_vsfilter_inst {
CRenderedTextSubtitle *rts;
CCritSec *cs;
CSize script_res;
CSize screen_res;
CRect video_rect;
enum csri_pixfmt pixfmt;
size_t readorder;
};
typedef struct csri_vsfilter_inst csri_inst;
#include "../csri/include/csri/csri.h"
static csri_rend csri_vsfilter = "vsfilter";
CSRIAPI csri_inst *csri_open_file(csri_rend *renderer, const char *filename, struct csri_openflag *flags)
{
int namesize;
wchar_t *namebuf;
namesize = MultiByteToWideChar(CP_UTF8, 0, filename, -1, NULL, 0);
if (!namesize)
return 0;
namesize++;
namebuf = new wchar_t[namesize];
MultiByteToWideChar(CP_UTF8, 0, filename, -1, namebuf, namesize);
csri_inst *inst = new csri_inst();
inst->cs = new CCritSec();
inst->rts = new CRenderedTextSubtitle(inst->cs);
if (inst->rts->Open(CString(namebuf), DEFAULT_CHARSET)) {
delete[] namebuf;
inst->readorder = 0;
return inst;
} else {
delete[] namebuf;
delete inst->rts;
delete inst->cs;
delete inst;
return 0;
}
}
CSRIAPI csri_inst *csri_open_mem(csri_rend *renderer, const void *data, size_t length, struct csri_openflag *flags)
{
// This is actually less effecient than opening a file, since this first writes the memory data to a temp file,
// then opens that file and parses from that.
csri_inst *inst = new csri_inst();
inst->cs = new CCritSec();
inst->rts = new CRenderedTextSubtitle(inst->cs);
if (inst->rts->Open((BYTE*)data, (int)length, DEFAULT_CHARSET, _T("CSRI memory subtitles"))) {
inst->readorder = 0;
return inst;
} else {
delete inst->rts;
delete inst->cs;
delete inst;
return 0;
}
}
CSRIAPI void csri_close(csri_inst *inst)
{
if (!inst) return;
delete inst->rts;
delete inst->cs;
delete inst;
}
CSRIAPI int csri_request_fmt(csri_inst *inst, const struct csri_fmt *fmt)
{
if (!inst) return -1;
if (!fmt->width || !fmt->height)
return -1;
// Check if pixel format is supported
switch (fmt->pixfmt) {
case CSRI_F_BGR_:
case CSRI_F_BGR:
case CSRI_F_YUY2:
case CSRI_F_YV12:
inst->pixfmt = fmt->pixfmt;
break;
default:
return -1;
}
inst->screen_res = CSize(fmt->width, fmt->height);
inst->video_rect = CRect(0, 0, fmt->width, fmt->height);
return 0;
}
CSRIAPI void csri_render(csri_inst *inst, struct csri_frame *frame, double time)
{
const double arbitrary_framerate = 25.0;
SubPicDesc spd;
spd.w = inst->screen_res.cx;
spd.h = inst->screen_res.cy;
switch (inst->pixfmt) {
case CSRI_F_BGR_:
spd.type = MSP_RGB32;
spd.bpp = 32;
spd.bits = frame->planes[0];
spd.pitch = frame->strides[0];
break;
case CSRI_F_BGR:
spd.type = MSP_RGB24;
spd.bpp = 24;
spd.bits = frame->planes[0];
spd.pitch = frame->strides[0];
break;
case CSRI_F_YUY2:
spd.type = MSP_YUY2;
spd.bpp = 16;
spd.bits = frame->planes[0];
spd.pitch = frame->strides[0];
break;
case CSRI_F_YV12:
spd.type = MSP_YV12;
spd.bpp = 12;
spd.bits = frame->planes[0];
spd.bitsU = frame->planes[1];
spd.bitsV = frame->planes[2];
spd.pitch = frame->strides[0];
spd.pitchUV = frame->strides[1];
break;
default:
// eh?
return;
}
spd.vidrect = inst->video_rect;
inst->rts->Render(spd, (REFERENCE_TIME)(time*10000000), arbitrary_framerate, inst->video_rect);
}
// No extensions supported
CSRIAPI void *csri_query_ext(csri_rend *rend, csri_ext_id extname)
{
return 0;
}
// Get info for renderer
static struct csri_info csri_vsfilter_info = {
"vsfilter_textsub", // name
"2.38-0611-3", // version (assumed version number, svn revision, patchlevel)
// 2.38-0611 is base svn 611
// 2.38-0611-1 is with clipfix and fax/fay patch
// 2.38-0611-2 adds CSRI
// 2.38-0611-3 fixes a bug in CSRI and adds fontcrash-fix and float-pos
"VSFilter/TextSub (SVN 611 + patches for clipfix, fax/fay, fontcrash-fix, float-pos and CSRI)", // longname
"Gabest", // author
"Copyright (c) 2004-2007 by Gabest and others" // copyright
};
CSRIAPI struct csri_info *csri_renderer_info(csri_rend *rend)
{
return &csri_vsfilter_info;
}
// Only one supported, obviously
CSRIAPI csri_rend *csri_renderer_byname(const char *name, const char *specific)
{
if (strcmp(name, csri_vsfilter_info.name))
return 0;
if (specific && strcmp(specific, csri_vsfilter_info.specific))
return 0;
return &csri_vsfilter;
}
// Still just one
CSRIAPI csri_rend *csri_renderer_default()
{
return &csri_vsfilter;
}
// And no further
CSRIAPI csri_rend *csri_renderer_next(csri_rend *prev)
{
return 0;
}