2 * Copyright 2002 Dmitry Timoshkov for CodeWeavers
3 * Copyright 2005 Maarten Lankhorst
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "wine/port.h"
23 #define COM_NO_WINDOWS_H
28 #ifdef HAVE_SYS_IOCTL_H
29 # include <sys/ioctl.h>
31 #ifdef HAVE_SYS_STAT_H
32 # include <sys/stat.h>
34 #ifdef HAVE_SYS_ERRNO_H
35 # include <sys/errno.h>
37 #ifdef HAVE_SYS_TIME_H
38 # include <sys/time.h>
40 #ifdef HAVE_ASM_TYPES_H
41 # include <asm/types.h>
43 #ifdef HAVE_LINUX_VIDEODEV_H
44 # include <linux/videodev.h>
58 #include "wine/debug.h"
60 #define CAP_DESC_MAX 32
62 WINE_DEFAULT_DEBUG_CHANNEL(avicap);
65 /***********************************************************************
66 * capCreateCaptureWindowW (AVICAP32.@)
68 HWND VFWAPI capCreateCaptureWindowW(LPCWSTR lpszWindowName, DWORD dwStyle, INT x,
69 INT y, INT nWidth, INT nHeight, HWND hWnd,
72 FIXME("%s, %08lx, %08x, %08x, %08x, %08x, %p, %08x\n",
73 debugstr_w(lpszWindowName), dwStyle,
74 x, y, nWidth, nHeight, hWnd, nID);
78 /***********************************************************************
79 * capCreateCaptureWindowA (AVICAP32.@)
81 HWND VFWAPI capCreateCaptureWindowA(LPCSTR lpszWindowName, DWORD dwStyle, INT x,
82 INT y, INT nWidth, INT nHeight, HWND hWnd,
84 { UNICODE_STRING nameW;
87 if (lpszWindowName) RtlCreateUnicodeStringFromAsciiz(&nameW, lpszWindowName);
88 else nameW.Buffer = NULL;
90 retW = capCreateCaptureWindowW(nameW.Buffer, dwStyle, x, y, nWidth, nHeight,
92 RtlFreeUnicodeString(&nameW);
97 #ifdef HAVE_LINUX_VIDEODEV_H
99 static int xioctl(int fd, int request, void * arg)
103 do r = ioctl (fd, request, arg);
104 while (-1 == r && EINTR == errno);
109 static BOOL query_video_device(int devnum, char *name, int namesize, char *version, int versionsize)
114 struct video_capability capa;
116 struct v4l2_capability caps;
119 snprintf(device, sizeof(device), "/dev/video%i", devnum);
121 if (stat (device, &st) == -1) {
122 /* This is probably because the device does not exist */
123 WARN("%s: %s\n", device, strerror(errno));
127 if (!S_ISCHR (st.st_mode)) {
128 ERR("%s: Not a device\n", device);
132 fd = open(device, O_RDWR | O_NONBLOCK);
134 ERR("%s: Failed to open: %s\n", device, strerror(errno));
139 memset(&caps, 0, sizeof(caps));
140 if (xioctl(fd, VIDIOC_QUERYCAP, &caps) != -1) {
141 lstrcpynA(name, (char *)caps.card, namesize);
142 snprintf(version, versionsize, "%s v%u.%u.%u", (char *)caps.driver, (caps.version >> 16) & 0xFF,
143 (caps.version >> 8) & 0xFF, caps.version & 0xFF);
148 if (errno != EINVAL && errno != 515)
149 WARN("%s: ioctl failed: %s -- Falling back to V4L\n", device, strerror(errno));
150 else WARN("%s: Not a V4L2 compatible device, trying V4l 1\n", device);
151 #endif /* HAVE_V4L2 */
153 memset(&capa, 0, sizeof(capa));
154 if (xioctl(fd, VIDIOCGCAP, &capa) == -1) {
155 /* errno 515 is used by some webcam drivers for unknown IOICTL command */
156 if (errno != EINVAL && errno != 515)
157 ERR("%s: Querying failed: %s\n", device, strerror(errno));
158 else ERR("%s: Querying failed: Not a V4L compatible device", device);
163 lstrcpynA(name, capa.name, namesize);
164 lstrcpynA(version, device, versionsize);
169 #else /* HAVE_LINUX_VIDEODEV_H */
171 static BOOL query_video_device(int devnum, char *name, int namesize, char *version, int versionsize)
173 ERR("Video 4 Linux support not enabled\n");
177 #endif /* HAVE_LINUX_VIDEODEV_H */
179 /***********************************************************************
180 * capGetDriverDescriptionA (AVICAP32.@)
182 BOOL VFWAPI capGetDriverDescriptionA(WORD wDriverIndex, LPSTR lpszName,
183 INT cbName, LPSTR lpszVer, INT cbVer)
186 WCHAR devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
187 TRACE("--> capGetDriverDescriptionW\n");
188 retval = capGetDriverDescriptionW(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX);
190 WideCharToMultiByte(CP_ACP, 0, devname, -1, lpszName, cbName, NULL, NULL);
191 WideCharToMultiByte(CP_ACP, 0, devver, -1, lpszVer, cbVer, NULL, NULL);
196 /***********************************************************************
197 * capGetDriverDescriptionW (AVICAP32.@)
199 BOOL VFWAPI capGetDriverDescriptionW(WORD wDriverIndex, LPWSTR lpszName,
200 INT cbName, LPWSTR lpszVer, INT cbVer)
202 char devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
204 if (!query_video_device(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX)) return FALSE;
206 MultiByteToWideChar(CP_UNIXCP, 0, devname, -1, lpszName, cbName);
207 MultiByteToWideChar(CP_UNIXCP, 0, devver, -1, lpszVer, cbVer);
208 TRACE("Version: %s - Name: %s\n", debugstr_w(lpszVer), debugstr_w(lpszName));