Fix ContextEgl for EGLStreams. Support Nvidia TX1/2

AUTHORS

@@ -12,3 +12,4 @@ FlafyDev <flafyarazi@gmail.com>
 Makoto Sato (makoto.sato@atmark-techno.com)
 Yunhao Tian (t123yh@outlook.com)
 Luke Howard <lukeh@padl.com>
+Stanislav Shmarov <github@snarpix.com>

src/flutter/shell/platform/linux_embedded/surface/context_egl_stream.cc

@@ -11,7 +11,7 @@ namespace flutter {
 
 ContextEglStream::ContextEglStream(
     std::unique_ptr<EnvironmentEglStream> environment)
-    : ContextEgl(std::move(environment), EGL_STREAM_BIT_KHR) {
+    : ContextEgl(std::move(environment), false, EGL_STREAM_BIT_KHR) {
   if (!valid_) {
     return;
   }

src/flutter/shell/platform/linux_embedded/window/elinux_window_drm.h

@@ -13,6 +13,7 @@
 
 #include <chrono>
 #include <memory>
+#include <optional>
 #include <string>
 #include <unordered_map>
 #include <vector>
@@ -262,29 +263,31 @@ class ELinuxWindowDrm : public ELinuxWindow, public WindowBindingHandler {
     }
 
     constexpr char kFileNameSeparator[] = "/";
-    auto pos = device_filename.find_last_of(kFileNameSeparator);
-    if (pos == std::string::npos) {
-      ELINUX_LOG(ERROR) << "Failed to get device name position.";
-      udev_unref(udev);
-      return false;
-    }
+    if (device_filename != "drm-nvdc") {
+      auto pos = device_filename.find_last_of(kFileNameSeparator);
+      if (pos == std::string::npos) {
+        ELINUX_LOG(ERROR) << "Failed to get device name position.";
+        udev_unref(udev);
+        return false;
+      }
 
-    auto device_name = device_filename.substr(pos + 1);
-    auto device = udev_device_new_from_subsystem_sysname(
-        udev, kUdevMonitorSubsystemDrm, device_name.c_str());
-    if (!device) {
-      ELINUX_LOG(ERROR) << "Failed to get device from " << device_name;
-      udev_unref(udev);
-      return false;
-    }
+      auto device_name = device_filename.substr(pos + 1);
+      auto device = udev_device_new_from_subsystem_sysname(
+          udev, kUdevMonitorSubsystemDrm, device_name.c_str());
+      if (!device) {
+        ELINUX_LOG(ERROR) << "Failed to get device from " << device_name;
+        udev_unref(udev);
+        return false;
+      }
 
-    auto sysnum = udev_device_get_sysnum(device);
-    if (!sysnum) {
-      ELINUX_LOG(ERROR) << "Failed to get device id.";
-      udev_unref(udev);
-      return false;
+      auto sysnum = udev_device_get_sysnum(device);
+      if (!sysnum) {
+        ELINUX_LOG(ERROR) << "Failed to get device id.";
+        udev_unref(udev);
+        return false;
+      }
+      drm_device_id_ = std::atoi(sysnum);
     }
-    drm_device_id_ = std::atoi(sysnum);
     udev_unref(udev);
 
     if (sd_event_new(&udev_drm_event_loop_) < 0) {
@@ -348,7 +351,7 @@ class ELinuxWindowDrm : public ELinuxWindow, public WindowBindingHandler {
     if (!sysnum) {
       ELINUX_LOG(ERROR) << "Failed to get device id.";
       return false;
-    } else if (std::atoi(sysnum) != drm_device_id_) {
+    } else if (drm_device_id_ && std::atoi(sysnum) != *drm_device_id_) {
       ELINUX_LOG(ERROR) << "Not expected device id.";
       return false;
     }
@@ -721,7 +724,7 @@ class ELinuxWindowDrm : public ELinuxWindow, public WindowBindingHandler {
 
   sd_event* udev_drm_event_loop_ = nullptr;
   udev_monitor* udev_monitor_ = nullptr;
-  int drm_device_id_;
+  std::optional<int> drm_device_id_;
 };
 
 }  // namespace flutter

src/flutter/shell/platform/linux_embedded/window/native_window_drm.cc

@@ -18,7 +18,11 @@ namespace flutter {
 NativeWindowDrm::NativeWindowDrm(const char* device_filename,
                                  const uint16_t rotation,
                                  bool enable_vsync) {
-  drm_device_ = open(device_filename, O_RDWR | O_CLOEXEC);
+  if (!strcmp("drm-nvdc", device_filename)) {
+    drm_device_ = drmOpen(device_filename, nullptr);
+  } else {
+    drm_device_ = open(device_filename, O_RDWR | O_CLOEXEC);
+  }
   if (drm_device_ == -1) {
     ELINUX_LOG(ERROR) << "Couldn't open " << device_filename;
     return;

src/flutter/shell/platform/linux_embedded/window/native_window_drm.h

@@ -7,6 +7,8 @@
 
 #include <xf86drmMode.h>
 
+#include <cstddef>
+#include <cstdint>
 #include <string>
 
 #include "flutter/shell/platform/linux_embedded/surface/surface_gl.h"