From 7ac92938d246030095c2928d24d55d74b57565db Mon Sep 17 00:00:00 2001
From: Joost Wooning <jwooning@gmail.com>
Date: Mon, 2 May 2022 03:57:39 +0200
Subject: [PATCH] UI: remove unused lock and fence (#24355)

---
 selfdrive/ui/qt/widgets/cameraview.cc | 7 -------
 selfdrive/ui/qt/widgets/cameraview.h  | 9 ---------
 2 files changed, 16 deletions(-)

diff --git a/selfdrive/ui/qt/widgets/cameraview.cc b/selfdrive/ui/qt/widgets/cameraview.cc
index d817d55568..cb978182db 100644
--- a/selfdrive/ui/qt/widgets/cameraview.cc
+++ b/selfdrive/ui/qt/widgets/cameraview.cc
@@ -214,16 +214,9 @@ void CameraViewWidget::paintGL() {
   glClearColor(bg.redF(), bg.greenF(), bg.blueF(), bg.alphaF());
   glClear(GL_STENCIL_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
 
-  std::lock_guard lk(lock);
-
   if (latest_frame == nullptr) return;
 
   glViewport(0, 0, width(), height());
-  // sync with the PBO
-  if (wait_fence) {
-    wait_fence->wait();
-  }
-
   glBindVertexArray(frame_vao);
 
   glUseProgram(program->programId());
diff --git a/selfdrive/ui/qt/widgets/cameraview.h b/selfdrive/ui/qt/widgets/cameraview.h
index 1f19ea157b..6873e8e991 100644
--- a/selfdrive/ui/qt/widgets/cameraview.h
+++ b/selfdrive/ui/qt/widgets/cameraview.h
@@ -35,19 +35,10 @@ protected:
   virtual void updateFrameMat(int w, int h);
   void vipcThread();
 
-  struct WaitFence {
-    WaitFence() { sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0); }
-    ~WaitFence() { glDeleteSync(sync); }
-    void wait() { glWaitSync(sync, 0, GL_TIMEOUT_IGNORED); }
-    GLsync sync = 0;
-  };
-
   bool zoomed_view;
-  std::mutex lock;
   VisionBuf *latest_frame = nullptr;
   GLuint frame_vao, frame_vbo, frame_ibo;
   mat4 frame_mat;
-  std::unique_ptr<WaitFence> wait_fence;
   std::unique_ptr<QOpenGLShaderProgram> program;
   QColor bg = QColor("#000000");