Sweden-Number/dlls/avicap32/avicap32_main.c

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/*
* Copyright 2002 Dmitry Timoshkov for CodeWeavers
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* Copyright 2005 Maarten Lankhorst
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
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#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
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#include <stdio.h>
#include <fcntl.h>
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#include <errno.h>
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#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_ASM_TYPES_H
# include <asm/types.h>
#endif
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#ifdef HAVE_LINUX_VIDEODEV2_H
# include <linux/videodev2.h>
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#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "vfw.h"
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#include "winnls.h"
#include "winternl.h"
#include "wine/debug.h"
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#define CAP_DESC_MAX 32
WINE_DEFAULT_DEBUG_CHANNEL(avicap);
/***********************************************************************
* capCreateCaptureWindowW (AVICAP32.@)
*/
HWND VFWAPI capCreateCaptureWindowW(LPCWSTR lpszWindowName, DWORD dwStyle, INT x,
INT y, INT nWidth, INT nHeight, HWND hWnd,
INT nID)
{
FIXME("%s, %08x, %08x, %08x, %08x, %08x, %p, %08x\n",
debugstr_w(lpszWindowName), dwStyle,
x, y, nWidth, nHeight, hWnd, nID);
return 0;
}
/***********************************************************************
* capCreateCaptureWindowA (AVICAP32.@)
*/
HWND VFWAPI capCreateCaptureWindowA(LPCSTR lpszWindowName, DWORD dwStyle, INT x,
INT y, INT nWidth, INT nHeight, HWND hWnd,
INT nID)
{ UNICODE_STRING nameW;
HWND retW;
if (lpszWindowName) RtlCreateUnicodeStringFromAsciiz(&nameW, lpszWindowName);
else nameW.Buffer = NULL;
retW = capCreateCaptureWindowW(nameW.Buffer, dwStyle, x, y, nWidth, nHeight,
hWnd, nID);
RtlFreeUnicodeString(&nameW);
return retW;
}
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#ifdef HAVE_LINUX_VIDEODEV2_H
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static int xioctl(int fd, int request, void * arg)
{
int r;
do r = ioctl (fd, request, arg);
while (-1 == r && EINTR == errno);
return r;
}
static BOOL query_video_device(int devnum, char *name, int namesize, char *version, int versionsize)
{
int fd;
char device[16];
struct stat st;
struct v4l2_capability caps;
snprintf(device, sizeof(device), "/dev/video%i", devnum);
if (stat (device, &st) == -1) {
/* This is probably because the device does not exist */
WARN("%s: %s\n", device, strerror(errno));
return FALSE;
}
if (!S_ISCHR (st.st_mode)) {
ERR("%s: Not a device\n", device);
return FALSE;
}
fd = open(device, O_RDWR | O_NONBLOCK);
if (fd == -1) {
ERR("%s: Failed to open: %s\n", device, strerror(errno));
return FALSE;
}
memset(&caps, 0, sizeof(caps));
if (xioctl(fd, VIDIOC_QUERYCAP, &caps) != -1) {
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lstrcpynA(name, (char *)caps.card, namesize);
snprintf(version, versionsize, "%s v%u.%u.%u", (char *)caps.driver, (caps.version >> 16) & 0xFF,
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(caps.version >> 8) & 0xFF, caps.version & 0xFF);
close(fd);
return TRUE;
}
if (errno != EINVAL && errno != 515)
/* errno 515 is used by some webcam drivers for unknown IOICTL command */
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ERR("%s: Querying failed: %s\n", device, strerror(errno));
else ERR("%s: Querying failed: Not a V4L compatible device\n", device);
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close(fd);
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return FALSE;
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}
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#else /* HAVE_LINUX_VIDEODEV2_H */
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static BOOL query_video_device(int devnum, char *name, int namesize, char *version, int versionsize)
{
ERR("Video 4 Linux support not enabled\n");
return FALSE;
}
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#endif /* HAVE_LINUX_VIDEODEV2_H */
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/***********************************************************************
* capGetDriverDescriptionA (AVICAP32.@)
*/
BOOL VFWAPI capGetDriverDescriptionA(WORD wDriverIndex, LPSTR lpszName,
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INT cbName, LPSTR lpszVer, INT cbVer)
{
BOOL retval;
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WCHAR devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
TRACE("--> capGetDriverDescriptionW\n");
retval = capGetDriverDescriptionW(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX);
if (retval) {
WideCharToMultiByte(CP_ACP, 0, devname, -1, lpszName, cbName, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, devver, -1, lpszVer, cbVer, NULL, NULL);
}
return retval;
}
/***********************************************************************
* capGetDriverDescriptionW (AVICAP32.@)
*/
BOOL VFWAPI capGetDriverDescriptionW(WORD wDriverIndex, LPWSTR lpszName,
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INT cbName, LPWSTR lpszVer, INT cbVer)
{
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char devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
if (!query_video_device(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX)) return FALSE;
MultiByteToWideChar(CP_UNIXCP, 0, devname, -1, lpszName, cbName);
MultiByteToWideChar(CP_UNIXCP, 0, devver, -1, lpszVer, cbVer);
TRACE("Version: %s - Name: %s\n", debugstr_w(lpszVer), debugstr_w(lpszName));
return TRUE;
}