diff options
| -rw-r--r-- | tools/.gitignore | 3 | ||||
| -rw-r--r-- | tools/Makefile.am | 6 | ||||
| -rw-r--r-- | tools/dri3info.c | 115 |
3 files changed, 123 insertions, 1 deletions
diff --git a/tools/.gitignore b/tools/.gitignore index 36868c69..3fd8cfb7 100644 --- a/tools/.gitignore +++ b/tools/.gitignore @@ -1,3 +1,4 @@ +dri3info intel-virtual-output -xf86-video-intel-backlight-helper org.x.xf86-video-intel.backlight-helper.policy +xf86-video-intel-backlight-helper diff --git a/tools/Makefile.am b/tools/Makefile.am index b5de2c96..432ec2c3 100644 --- a/tools/Makefile.am +++ b/tools/Makefile.am @@ -31,6 +31,12 @@ bin_PROGRAMS = intel-virtual-output driverman_DATA = intel-virtual-output.$(DRIVER_MAN_SUFFIX) endif +if X11_DRI3 +noinst_PROGRAMS = dri3info +dri3info_SOURCES = dri3info.c +dri3info_LDADD = $(X11_DRI3_LIBS) +endif + if BUILD_BACKLIGHT_HELPER libexec_PROGRAMS = xf86-video-intel-backlight-helper nodist_policy_DATA = org.x.xf86-video-intel.backlight-helper.policy diff --git a/tools/dri3info.c b/tools/dri3info.c new file mode 100644 index 00000000..0dcb495f --- /dev/null +++ b/tools/dri3info.c @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2015 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#include <X11/Xlib.h> +#include <X11/Xlib-xcb.h> +#include <xcb/xcb.h> +#include <xcb/dri3.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> + +static int dri3_open(Display *dpy) +{ + xcb_connection_t *c = XGetXCBConnection(dpy); + xcb_dri3_open_cookie_t cookie; + xcb_dri3_open_reply_t *reply; + + cookie = xcb_dri3_open(c, RootWindow(dpy, DefaultScreen(dpy)), None); + reply = xcb_dri3_open_reply(c, cookie, NULL); + + if (!reply) + return -1; + + if (reply->nfd != 1) + return -1; + + return xcb_dri3_open_reply_fds(c, reply)[0]; +} + +static void match_device(int fd, char *buf, int len) +{ + struct stat remote, local; + int i; + + if (fstat(fd, &remote)) + goto out; + + for (i = 0; i < 64; i++) { + snprintf(buf, len, "/dev/dri/card%d", i); + if (stat(buf, &local)) + continue; + + if (local.st_mode == remote.st_mode && + local.st_rdev == remote.st_rdev) + return; + } + +out: + strncpy(buf, "unknown card", len); +} + +static void info(const char *dpyname) +{ + Display *dpy; + int device; + char device_name[1024]; + + dpy = XOpenDisplay(dpyname); + if (dpy == NULL) { + printf("Unable to connect to display '%s'\n", + dpyname ?: getenv("DISPLAY") ?: "unset"); + return; + } + + device = dri3_open(dpy); + if (device < 0) { + printf("Unable to connect to DRI3 on display '%s'\n", + DisplayString(dpy)); + return; + } + + match_device(device, device_name, sizeof(device_name)); + + printf("Connected to DRI3 on display '%s', using fd %d: matches %s\n", + DisplayString(dpy), device, device_name); + + XCloseDisplay(dpy); + close(device); +} + +int main(int argc, char **argv) +{ + int i; + + if (argc > 1) { + for (i = 1; i < argc; i++) + info(argv[i]); + } else + info(NULL); + + return 0; +} |