Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 188 insertions, 0 deletions

diff --git a/widget/gtk/v4l2test/v4l2test.cpp b/widget/gtk/v4l2test/v4l2test.cpp
new file mode 100644
index 0000000000..6ee685d9ed
--- /dev/null
+++ b/widget/gtk/v4l2test/v4l2test.cpp
@@ -0,0 +1,188 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <cstdio>
+#include <cstdlib>
+#include <errno.h>
+#include <fcntl.h>
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+#  include <sys/videoio.h>
+#elif defined(__sun)
+#  include <sys/videodev2.h>
+#else
+#  include <linux/videodev2.h>
+#endif
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <string.h>
+#include <getopt.h>
+#include <stdint.h>
+#include <stdarg.h>
+
+#if defined(MOZ_ASAN) || defined(FUZZING)
+#  include <signal.h>
+#endif
+
+#include "mozilla/ScopeExit.h"
+
+#ifdef __SUNPRO_CC
+#  include <stdio.h>
+#endif
+
+#include "mozilla/GfxInfoUtils.h"
+
+// Print test results to stdout and logging to stderr
+#define OUTPUT_PIPE 1
+
+// Convert an integer pixfmt to a 4-character string.  str must have a length
+// of at least 5 to include null-termination.
+static void v4l2_pixfmt_to_str(uint32_t pixfmt, char* str) {
+  for (int i = 0; i < 4; i++) {
+    str[i] = (pixfmt >> (i * 8)) & 0xff;
+  }
+  str[4] = 0;
+}
+
+// Enumerate the buffer formats supported on a V4L2 buffer queue.  aTypeStr
+// is the queue type, i.e. CAPTURE or OUTPUT.
+static void v4l2_enumfmt(int aFd, int aType, const char* aTypeStr) {
+  struct v4l2_fmtdesc fmt {};
+  char pix_fmt_str[5];
+  fmt.type = aType;
+  record_value("V4L2_%s_FMTS\n", aTypeStr);
+  for (fmt.index = 0;; fmt.index++) {
+    int result = ioctl(aFd, VIDIOC_ENUM_FMT, &fmt);
+    if (result < 0) {
+      break;
+    }
+    v4l2_pixfmt_to_str(fmt.pixelformat, pix_fmt_str);
+    record_value(" %s", pix_fmt_str);
+  }
+  record_value("\n");
+}
+
+// Probe a V4L2 device to work out what it supports
+static void v4l2_check_device(const char* aVideoDevice) {
+  int fd = -1;
+  int result = -1;
+
+  log("v4l2test probing device '%s'\n", aVideoDevice);
+
+  auto autoRelease = mozilla::MakeScopeExit([&] {
+    if (fd >= 0) {
+      close(fd);
+    }
+  });
+
+  fd = open(aVideoDevice, O_RDWR | O_NONBLOCK, 0);
+  if (fd < 0) {
+    record_value("ERROR\nV4L2 failed to open device %s: %s\n", aVideoDevice,
+                 strerror(errno));
+    return;
+  }
+
+  struct v4l2_capability cap {};
+  result = ioctl(fd, VIDIOC_QUERYCAP, &cap);
+  if (result < 0) {
+    record_value("ERROR\nV4L2 device %s failed to query capabilities\n",
+                 aVideoDevice);
+    return;
+  }
+  log("v4l2test driver %s card %s bus_info %s version %d\n", cap.driver,
+      cap.card, cap.bus_info, cap.version);
+
+  if (!(cap.capabilities & V4L2_CAP_DEVICE_CAPS)) {
+    record_value("ERROR\nV4L2 device %s does not support DEVICE_CAPS\n",
+                 aVideoDevice);
+    return;
+  }
+
+  if (!(cap.device_caps & V4L2_CAP_STREAMING)) {
+    record_value("ERROR\nV4L2 device %s does not support V4L2_CAP_STREAMING\n",
+                 aVideoDevice);
+    return;
+  }
+
+  // Work out whether the device supports planar or multiplaner bitbuffers and
+  // framebuffers
+  bool splane = cap.device_caps & V4L2_CAP_VIDEO_M2M;
+  bool mplane = cap.device_caps & V4L2_CAP_VIDEO_M2M_MPLANE;
+  if (!splane && !mplane) {
+    record_value("ERROR\nV4L2 device %s does not support M2M modes\n",
+                 aVideoDevice);
+    // (It's probably a webcam!)
+    return;
+  }
+  record_value("V4L2_SPLANE\n%s\n", splane ? "TRUE" : "FALSE");
+  record_value("V4L2_MPLANE\n%s\n", mplane ? "TRUE" : "FALSE");
+
+  // Now check the formats supported for CAPTURE and OUTPUT buffers.
+  // For a V4L2-M2M decoder, OUTPUT is actually the bitbuffers we put in and
+  // CAPTURE is the framebuffers we get out.
+  v4l2_enumfmt(
+      fd,
+      mplane ? V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : V4L2_BUF_TYPE_VIDEO_CAPTURE,
+      "CAPTURE");
+  v4l2_enumfmt(
+      fd,
+      mplane ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : V4L2_BUF_TYPE_VIDEO_OUTPUT,
+      "OUTPUT");
+
+  record_value("V4L2_SUPPORTED\nTRUE\n");
+}
+
+static void PrintUsage() {
+  printf(
+      "Firefox V4L2-M2M probe utility\n"
+      "\n"
+      "usage: v4l2test [options]\n"
+      "\n"
+      "Options:\n"
+      "\n"
+      "  -h --help                 show this message\n"
+      "  -d --device device        Probe a v4l2 device (e.g. /dev/video10)\n"
+      "\n");
+}
+
+int main(int argc, char** argv) {
+  struct option longOptions[] = {{"help", no_argument, nullptr, 'h'},
+                                 {"device", required_argument, nullptr, 'd'},
+                                 {nullptr, 0, nullptr, 0}};
+  const char* shortOptions = "hd:";
+  int c;
+  const char* device = nullptr;
+  while ((c = getopt_long(argc, argv, shortOptions, longOptions, nullptr)) !=
+         -1) {
+    switch (c) {
+      case 'd':
+        device = optarg;
+        break;
+      case 'h':
+      default:
+        break;
+    }
+  }
+
+  if (device) {
+#if defined(MOZ_ASAN) || defined(FUZZING)
+    // If handle_segv=1 (default), then glxtest crash will print a sanitizer
+    // report which can confuse the harness in fuzzing automation.
+    signal(SIGSEGV, SIG_DFL);
+#endif
+    const char* env = getenv("MOZ_GFX_DEBUG");
+    enable_logging = env && *env == '1';
+    output_pipe = OUTPUT_PIPE;
+    if (!enable_logging) {
+      close_logging();
+    }
+    v4l2_check_device(device);
+    record_flush();
+    return EXIT_SUCCESS;
+  }
+  PrintUsage();
+  return 0;
+}