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"
26 #ifdef HAVE_SYS_IOCTL_H
27 # include <sys/ioctl.h>
29 #ifdef HAVE_SYS_STAT_H
30 # include <sys/stat.h>
32 #ifdef HAVE_SYS_ERRNO_H
33 # include <sys/errno.h>
35 #ifdef HAVE_SYS_TIME_H
36 # include <sys/time.h>
38 #ifdef HAVE_ASM_TYPES_H
39 # include <asm/types.h>
41 #ifdef HAVE_LINUX_VIDEODEV_H
42 # include <linux/videodev.h>
55 #include "wine/debug.h"
57 #define CAP_DESC_MAX 32
59 WINE_DEFAULT_DEBUG_CHANNEL(avicap);
62 /***********************************************************************
63 * capCreateCaptureWindowW (AVICAP32.@)
65 HWND VFWAPI capCreateCaptureWindowW(LPCWSTR lpszWindowName, DWORD dwStyle, INT x,
66 INT y, INT nWidth, INT nHeight, HWND hWnd,
69 FIXME("%s, %08x, %08x, %08x, %08x, %08x, %p, %08x\n",
70 debugstr_w(lpszWindowName), dwStyle,
71 x, y, nWidth, nHeight, hWnd, nID);
75 /***********************************************************************
76 * capCreateCaptureWindowA (AVICAP32.@)
78 HWND VFWAPI capCreateCaptureWindowA(LPCSTR lpszWindowName, DWORD dwStyle, INT x,
79 INT y, INT nWidth, INT nHeight, HWND hWnd,
81 { UNICODE_STRING nameW;
84 if (lpszWindowName) RtlCreateUnicodeStringFromAsciiz(&nameW, lpszWindowName);
85 else nameW.Buffer = NULL;
87 retW = capCreateCaptureWindowW(nameW.Buffer, dwStyle, x, y, nWidth, nHeight,
89 RtlFreeUnicodeString(&nameW);
94 #ifdef HAVE_LINUX_VIDEODEV_H
96 static int xioctl(int fd, int request, void * arg)
100 do r = ioctl (fd, request, arg);
101 while (-1 == r && EINTR == errno);
106 static BOOL query_video_device(int devnum, char *name, int namesize, char *version, int versionsize)
111 struct video_capability capa;
113 struct v4l2_capability caps;
116 snprintf(device, sizeof(device), "/dev/video%i", devnum);
118 if (stat (device, &st) == -1) {
119 /* This is probably because the device does not exist */
120 WARN("%s: %s\n", device, strerror(errno));
124 if (!S_ISCHR (st.st_mode)) {
125 ERR("%s: Not a device\n", device);
129 fd = open(device, O_RDWR | O_NONBLOCK);
131 ERR("%s: Failed to open: %s\n", device, strerror(errno));
136 memset(&caps, 0, sizeof(caps));
137 if (xioctl(fd, VIDIOC_QUERYCAP, &caps) != -1) {
138 lstrcpynA(name, (char *)caps.card, namesize);
139 snprintf(version, versionsize, "%s v%u.%u.%u", (char *)caps.driver, (caps.version >> 16) & 0xFF,
140 (caps.version >> 8) & 0xFF, caps.version & 0xFF);
145 if (errno != EINVAL && errno != 515)
146 WARN("%s: ioctl failed: %s -- Falling back to V4L\n", device, strerror(errno));
147 else WARN("%s: Not a V4L2 compatible device, trying V4l 1\n", device);
148 #endif /* HAVE_V4L2 */
150 memset(&capa, 0, sizeof(capa));
151 if (xioctl(fd, VIDIOCGCAP, &capa) == -1) {
152 /* errno 515 is used by some webcam drivers for unknown IOICTL command */
153 if (errno != EINVAL && errno != 515)
154 ERR("%s: Querying failed: %s\n", device, strerror(errno));
155 else ERR("%s: Querying failed: Not a V4L compatible device\n", device);
160 lstrcpynA(name, capa.name, namesize);
161 lstrcpynA(version, device, versionsize);
166 #else /* HAVE_LINUX_VIDEODEV_H */
168 static BOOL query_video_device(int devnum, char *name, int namesize, char *version, int versionsize)
170 ERR("Video 4 Linux support not enabled\n");
174 #endif /* HAVE_LINUX_VIDEODEV_H */
176 /***********************************************************************
177 * capGetDriverDescriptionA (AVICAP32.@)
179 BOOL VFWAPI capGetDriverDescriptionA(WORD wDriverIndex, LPSTR lpszName,
180 INT cbName, LPSTR lpszVer, INT cbVer)
183 WCHAR devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
184 TRACE("--> capGetDriverDescriptionW\n");
185 retval = capGetDriverDescriptionW(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX);
187 WideCharToMultiByte(CP_ACP, 0, devname, -1, lpszName, cbName, NULL, NULL);
188 WideCharToMultiByte(CP_ACP, 0, devver, -1, lpszVer, cbVer, NULL, NULL);
193 /***********************************************************************
194 * capGetDriverDescriptionW (AVICAP32.@)
196 BOOL VFWAPI capGetDriverDescriptionW(WORD wDriverIndex, LPWSTR lpszName,
197 INT cbName, LPWSTR lpszVer, INT cbVer)
199 char devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
201 if (!query_video_device(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX)) return FALSE;
203 MultiByteToWideChar(CP_UNIXCP, 0, devname, -1, lpszName, cbName);
204 MultiByteToWideChar(CP_UNIXCP, 0, devver, -1, lpszVer, cbVer);
205 TRACE("Version: %s - Name: %s\n", debugstr_w(lpszVer), debugstr_w(lpszName));