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/*
* $Id: dde6a1d6ee387a4519d18f03c2e6fa1b73a54ad0 $
*
* Copyright 1993, 1994 Martin Ayotte
* Copyright 1998 Marcus Meissner
* Copyright 1999 Eric Pouech
*
* Originally distributed under LPGL 2.1 (or later) by the Wine project.
*
* Modified for use with MPlayer, detailed CVS changelog at
* http://www.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/
*
* File now distributed as part of VLC media player with no modifications.
*
* 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 Street, Fifth Floor, Boston MA 02110-1301, USA.
*/
#include "config.h"
#include <stdio.h>
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#include <stdlib.h>
#ifdef __FreeBSD__
#include <sys/time.h>
#endif
#include "win32.h"
#include "wine/driver.h"
#include "wine/pe_image.h"
#include "wine/winreg.h"
#include "wine/vfw.h"
#include "registry.h"
#ifdef WIN32_LOADER
#include "ldt_keeper.h"
#endif
#include "driver.h"
#ifndef __MINGW32__
#include "ext.h"
#endif
#ifndef WIN32_LOADER
char* def_path=WIN32_PATH;
#else
extern char* def_path;
#endif
#if 1
/*
* STORE_ALL/REST_ALL seems like an attempt to workaround problems due to
* WINAPI/no-WINAPI bustage.
*
* There should be no need for the STORE_ALL/REST_ALL hack once all
* function definitions agree with their prototypes (WINAPI-wise) and
* we make sure, that we do not call these functions without a proper
* prototype in scope.
*/
#define STORE_ALL
#define REST_ALL
#else
// this asm code is no longer needed
#define STORE_ALL \
__asm__ __volatile__ ( \
"push %%ebx\n\t" \
"push %%ecx\n\t" \
"push %%edx\n\t" \
"push %%esi\n\t" \
"push %%edi\n\t"::)
#define REST_ALL \
__asm__ __volatile__ ( \
"pop %%edi\n\t" \
"pop %%esi\n\t" \
"pop %%edx\n\t" \
"pop %%ecx\n\t" \
"pop %%ebx\n\t"::)
#endif
static int needs_free=0;
void SetCodecPath(const char* path)
{
if(needs_free)free(def_path);
if(path==NULL)
{
def_path=WIN32_PATH;
needs_free=0;
return;
}
def_path = (char*) malloc(strlen(path)+1);
strcpy(def_path, path);
needs_free=1;
}
static DWORD dwDrvID = 0;
LRESULT WINAPI SendDriverMessage(HDRVR hDriver, UINT message,
LPARAM lParam1, LPARAM lParam2)
{
DRVR* module=(DRVR*)hDriver;
int result;
#ifndef __svr4__
char qw[300];
#endif
#ifdef DETAILED_OUT
printf("SendDriverMessage: driver %X, message %X, arg1 %X, arg2 %X\n", hDriver, message, lParam1, lParam2);
#endif
if (!module || !module->hDriverModule || !module->DriverProc) return -1;
#ifndef __svr4__
__asm__ __volatile__ ("fsave (%0)\n\t": :"r"(&qw));
#endif
#ifdef WIN32_LOADER
Setup_FS_Segment();
#endif
STORE_ALL;
result=module->DriverProc(module->dwDriverID, hDriver, message, lParam1, lParam2);
REST_ALL;
#ifndef __svr4__
__asm__ __volatile__ ("frstor (%0)\n\t": :"r"(&qw));
#endif
#ifdef DETAILED_OUT
printf("\t\tResult: %X\n", result);
#endif
return result;
}
void DrvClose(HDRVR hDriver)
{
if (hDriver)
{
DRVR* d = (DRVR*)hDriver;
if (d->hDriverModule)
{
#ifdef WIN32_LOADER
Setup_FS_Segment();
#endif
if (d->DriverProc)
{
SendDriverMessage(hDriver, DRV_CLOSE, 0, 0);
d->dwDriverID = 0;
SendDriverMessage(hDriver, DRV_FREE, 0, 0);
}
FreeLibrary(d->hDriverModule);
}
free(d);
}
#ifdef WIN32_LOADER
CodecRelease();
#endif
}
//DrvOpen(LPCSTR lpszDriverName, LPCSTR lpszSectionName, LPARAM lParam2)
HDRVR DrvOpen(LPARAM lParam2)
{
NPDRVR hDriver;
int i;
char unknown[0x124];
const char* filename = (const char*) ((ICOPEN*) lParam2)->pV1Reserved;
#ifdef MPLAYER
#ifdef WIN32_LOADER
Setup_LDT_Keeper();
#endif
printf("Loading codec DLL: '%s'\n",filename);
#endif
hDriver = (NPDRVR) malloc(sizeof(DRVR));
if (!hDriver)
return ((HDRVR) 0);
memset((void*)hDriver, 0, sizeof(DRVR));
#ifdef WIN32_LOADER
CodecAlloc();
Setup_FS_Segment();
#endif
hDriver->hDriverModule = LoadLibraryA(filename);
if (!hDriver->hDriverModule)
{
printf("Can't open library %s\n", filename);
DrvClose((HDRVR)hDriver);
return ((HDRVR) 0);
}
hDriver->DriverProc = (DRIVERPROC) GetProcAddress(hDriver->hDriverModule,
"DriverProc");
if (!hDriver->DriverProc)
{
printf("Library %s is not a valid VfW/ACM codec\n", filename);
DrvClose((HDRVR)hDriver);
return ((HDRVR) 0);
}
TRACE("DriverProc == %X\n", hDriver->DriverProc);
SendDriverMessage((HDRVR)hDriver, DRV_LOAD, 0, 0);
TRACE("DRV_LOAD Ok!\n");
SendDriverMessage((HDRVR)hDriver, DRV_ENABLE, 0, 0);
TRACE("DRV_ENABLE Ok!\n");
hDriver->dwDriverID = ++dwDrvID; // generate new id
// open driver and remmeber proper DriverID
hDriver->dwDriverID = SendDriverMessage((HDRVR)hDriver, DRV_OPEN, (LPARAM) unknown, lParam2);
TRACE("DRV_OPEN Ok!(%X)\n", hDriver->dwDriverID);
printf("Loaded DLL driver %s at %x\n", filename, hDriver->hDriverModule);
return (HDRVR)hDriver;
}
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