From 22715708608c6504ac243fdbaf2865e7be93c187 Mon Sep 17 00:00:00 2001
From: Banks T <btrout.dhrs@gmail.com>
Date: Mon, 30 Sep 2019 18:09:39 -0400
Subject: [PATCH] Fix PS3Eye exposure setting (#1911)

---
 .../src/main/native/linux/UsbCameraImpl.cpp   | 34 ++++++++++++++++---
 cscore/src/main/native/linux/UsbCameraImpl.h  |  5 +--
 2 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/cscore/src/main/native/linux/UsbCameraImpl.cpp b/cscore/src/main/native/linux/UsbCameraImpl.cpp
index 13f7a43229..f508099178 100644
--- a/cscore/src/main/native/linux/UsbCameraImpl.cpp
+++ b/cscore/src/main/native/linux/UsbCameraImpl.cpp
@@ -108,6 +108,11 @@ static bool IsPercentageProperty(wpi::StringRef name) {
 static constexpr const int quirkLifeCamHd3000[] = {
     5, 10, 20, 39, 78, 156, 312, 625, 1250, 2500, 5000, 10000, 20000};
 
+static constexpr char const* quirkPS3EyePropExAuto = "auto_exposure";
+static constexpr char const* quirkPS3EyePropExValue = "exposure";
+static constexpr const int quirkPS3EyePropExAutoOn = 0;
+static constexpr const int quirkPS3EyePropExAutoOff = 1;
+
 int UsbCameraImpl::RawToPercentage(const UsbCameraProperty& rawProp,
                                    int rawValue) {
   // LifeCam exposure setting quirk
@@ -1149,6 +1154,7 @@ void UsbCameraImpl::SetQuirks() {
   wpi::StringRef desc = GetDescription(descbuf);
   m_lifecam_exposure =
       desc.endswith("LifeCam HD-3000") || desc.endswith("LifeCam Cinema (TM)");
+  m_ps3eyecam_exposure = desc.endswith("Camera-B4.04.27.1");
 }
 
 void UsbCameraImpl::SetProperty(int property, int value, CS_Status* status) {
@@ -1194,21 +1200,41 @@ void UsbCameraImpl::SetWhiteBalanceManual(int value, CS_Status* status) {
 
 void UsbCameraImpl::SetExposureAuto(CS_Status* status) {
   // auto; this is an enum value
-  SetProperty(GetPropertyIndex(kPropExAuto), 3, status);
+  if (m_ps3eyecam_exposure) {
+    SetProperty(GetPropertyIndex(quirkPS3EyePropExAuto),
+                quirkPS3EyePropExAutoOn, status);
+
+  } else {
+    SetProperty(GetPropertyIndex(kPropExAuto), 3, status);
+  }
 }
 
 void UsbCameraImpl::SetExposureHoldCurrent(CS_Status* status) {
-  SetProperty(GetPropertyIndex(kPropExAuto), 1, status);  // manual
+  if (m_ps3eyecam_exposure) {
+    SetProperty(GetPropertyIndex(quirkPS3EyePropExAuto),
+                quirkPS3EyePropExAutoOff, status);  // manual
+  } else {
+    SetProperty(GetPropertyIndex(kPropExAuto), 1, status);  // manual
+  }
 }
 
 void UsbCameraImpl::SetExposureManual(int value, CS_Status* status) {
-  SetProperty(GetPropertyIndex(kPropExAuto), 1, status);  // manual
+  if (m_ps3eyecam_exposure) {
+    SetProperty(GetPropertyIndex(quirkPS3EyePropExAuto),
+                quirkPS3EyePropExAutoOff, status);  // manual
+  } else {
+    SetProperty(GetPropertyIndex(kPropExAuto), 1, status);  // manual
+  }
   if (value > 100) {
     value = 100;
   } else if (value < 0) {
     value = 0;
   }
-  SetProperty(GetPropertyIndex(kPropExValue), value, status);
+  if (m_ps3eyecam_exposure) {
+    SetProperty(GetPropertyIndex(quirkPS3EyePropExValue), value, status);
+  } else {
+    SetProperty(GetPropertyIndex(kPropExValue), value, status);
+  }
 }
 
 bool UsbCameraImpl::SetVideoMode(const VideoMode& mode, CS_Status* status) {
diff --git a/cscore/src/main/native/linux/UsbCameraImpl.h b/cscore/src/main/native/linux/UsbCameraImpl.h
index eb4a3113d8..362722820d 100644
--- a/cscore/src/main/native/linux/UsbCameraImpl.h
+++ b/cscore/src/main/native/linux/UsbCameraImpl.h
@@ -1,5 +1,5 @@
 /*----------------------------------------------------------------------------*/
-/* Copyright (c) 2016-2018 FIRST. All Rights Reserved.                        */
+/* Copyright (c) 2016-2019 FIRST. All Rights Reserved.                        */
 /* Open Source Software - may be modified and shared by FRC teams. The code   */
 /* must be accompanied by the FIRST BSD license file in the root directory of */
 /* the project.                                                               */
@@ -164,7 +164,8 @@ class UsbCameraImpl : public SourceImpl {
   std::thread m_cameraThread;
 
   // Quirks
-  bool m_lifecam_exposure{false};  // Microsoft LifeCam exposure
+  bool m_lifecam_exposure{false};    // Microsoft LifeCam exposure
+  bool m_ps3eyecam_exposure{false};  // PS3 Eyecam exposure
 
   //
   // Variables protected by m_mutex