Snap: Add support for shutter speed

Author: codeworkx <codeworkx@cyanogenmod.org>
Date:   Wed Jan 6 11:35:40 2016 +0100

    Snap: add support for shutter speed

    Change-Id: Id3393280c7c1c2f292d71587ba099e8dbafd1340

Author: codeworkx <codeworkx@cyanogenmod.org>
Date:   Fri Jan 8 19:38:15 2016 +0100

    Snap: Restart preview when shutter-speed gets disabled

    Change-Id: I3884b23f1c855cfffeb20ca6e2a760732370d772

Change-Id: I82144c80d8fc2e7324b3dc8cde44b5b2934bdd50

3 files changed, 41 insertions, 0 deletions

diff --git a/src/com/android/camera/CameraSettings.java b/src/com/android/camera/CameraSettings.java
index cca1ef2cd..2fdd60ed4 100755
--- a/src/com/android/camera/CameraSettings.java
+++ b/src/com/android/camera/CameraSettings.java
@@ -103,6 +103,7 @@ public class CameraSettings {
     public static final String KEY_AUTOEXPOSURE = "pref_camera_autoexposure_key";
     public static final String KEY_ANTIBANDING = "pref_camera_antibanding_key";
     public static final String KEY_ISO = "pref_camera_iso_key";
+    public static final String KEY_SHUTTER_SPEED = "pref_camera_shutter_speed_key";
     public static final String KEY_LENSSHADING = "pref_camera_lensshading_key";
     public static final String KEY_HISTOGRAM = "pref_camera_histogram_key";
     public static final String KEY_DENOISE = "pref_camera_denoise_key";
@@ -159,6 +160,8 @@ public class CameraSettings {
     private static final String KEY_QC_SUPPORTED_VIDEO_TNR_MODES = "video-tnr-mode-values";
     private static final String KEY_SNAPCAM_SUPPORTED_HDR_MODES = "hdr-mode-values";
     private static final String KEY_SNAPCAM_SUPPORTED_HDR_NEED_1X = "hdr-need-1x-values";
+    public static final String KEY_SNAPCAM_SHUTTER_SPEED = "shutter-speed";
+    public static final String KEY_SNAPCAM_SHUTTER_SPEED_MODES = "shutter-speed-values";
     public static final String KEY_QC_AE_BRACKETING = "ae-bracket-hdr";
     public static final String KEY_QC_AF_BRACKETING = "af-bracket";
     public static final String KEY_QC_RE_FOCUS = "re-focus";
@@ -514,6 +517,15 @@ public class CameraSettings {
         params.set(mKeyIso, iso);
     }
 
+    public static List<String> getSupportedShutterSpeedValues(Parameters params) {
+        String shutterSpeedValues = params.get(KEY_SNAPCAM_SHUTTER_SPEED_MODES);
+        if (shutterSpeedValues == null) {
+            return null;
+        }
+        Log.d(TAG, "Supported shutter speed values: " + shutterSpeedValues);
+        return split(shutterSpeedValues);
+    }
+
     public static String getSupportedHighestVideoQuality(
             int cameraId, Parameters parameters) {
         // When launching the camera app first time, we will set the video quality
@@ -831,6 +843,7 @@ public class CameraSettings {
         ListPreference autoExposure = group.findPreference(KEY_AUTOEXPOSURE);
         ListPreference antiBanding = group.findPreference(KEY_ANTIBANDING);
         ListPreference mIso = group.findPreference(KEY_ISO);
+        ListPreference mShutterSpeed = group.findPreference(KEY_SHUTTER_SPEED);
         ListPreference lensShade = group.findPreference(KEY_LENSSHADING);
         ListPreference histogram = group.findPreference(KEY_HISTOGRAM);
         ListPreference denoise = group.findPreference(KEY_DENOISE);
@@ -951,6 +964,11 @@ public class CameraSettings {
                     mIso, getSupportedIsoValues(mParameters));
         }
 
+        if (mShutterSpeed != null) {
+            filterUnsupportedOptions(group,
+                    mShutterSpeed, getSupportedShutterSpeedValues(mParameters));
+        }
+
         if (redeyeReduction != null) {
             filterUnsupportedOptions(group,
                     redeyeReduction, ParametersWrapper.getSupportedRedeyeReductionModes(mParameters));
diff --git a/src/com/android/camera/PhotoMenu.java b/src/com/android/camera/PhotoMenu.java
index 87b2b95b4..2ff841562 100644
--- a/src/com/android/camera/PhotoMenu.java
+++ b/src/com/android/camera/PhotoMenu.java
@@ -195,6 +195,7 @@ public class PhotoMenu extends MenuController
                 CameraSettings.KEY_WHITE_BALANCE,
                 CameraSettings.KEY_QC_CHROMA_FLASH,
                 CameraSettings.KEY_FOCUS_TIME,
+                CameraSettings.KEY_SHUTTER_SPEED,
                 CameraSettings.KEY_REDEYE_REDUCTION,
                 CameraSettings.KEY_SELFIE_MIRROR,
                 CameraSettings.KEY_SHUTTER_SOUND,
@@ -218,6 +219,7 @@ public class PhotoMenu extends MenuController
                 CameraSettings.KEY_QC_CHROMA_FLASH,
                 CameraSettings.KEY_FOCUS_MODE,
                 CameraSettings.KEY_FOCUS_TIME,
+                CameraSettings.KEY_SHUTTER_SPEED,
                 CameraSettings.KEY_REDEYE_REDUCTION,
                 CameraSettings.KEY_POWER_SHUTTER,
                 CameraSettings.KEY_MAX_BRIGHTNESS,
diff --git a/src/com/android/camera/PhotoModule.java b/src/com/android/camera/PhotoModule.java
index 8a9ceb8b0..d7338cf48 100755
--- a/src/com/android/camera/PhotoModule.java
+++ b/src/com/android/camera/PhotoModule.java
@@ -3305,6 +3305,14 @@ public class PhotoModule
                 CameraSettings.setISOValue(mParameters, iso);
             }
         }
+        // Set shutter speed parameter
+        String shutterSpeed = mPreferences.getString(
+                CameraSettings.KEY_SHUTTER_SPEED,
+                mActivity.getString(R.string.pref_camera_shutter_speed_default));
+        if (CameraUtil.isSupported(shutterSpeed,
+            CameraSettings.getSupportedShutterSpeedValues(mParameters))) {
+            mParameters.set(CameraSettings.KEY_SNAPCAM_SHUTTER_SPEED, shutterSpeed);
+        }
         // Set color effect parameter.
         String colorEffect = mPreferences.getString(
                 CameraSettings.KEY_COLOR_EFFECT,
@@ -4164,6 +4172,19 @@ public class PhotoModule
 
         mParameters.setJpegQuality(jpegQuality);
 
+        // When shutter speed gets disabled preview needs to be restarted
+        if (CameraUtil.isSupported(mParameters, CameraSettings.KEY_SNAPCAM_SHUTTER_SPEED)) {
+            String shutterSpeed = mPreferences.getString(CameraSettings.KEY_SHUTTER_SPEED, null);
+            if (shutterSpeed != null) {
+                String oldShutterSpeed = mParameters.get(CameraSettings.KEY_SNAPCAM_SHUTTER_SPEED);
+                if (!shutterSpeed.equals(oldShutterSpeed) && shutterSpeed.equals("0") &&
+                        mCameraState != PREVIEW_STOPPED) {
+                    Log.v(TAG, "Shutter speed disabled. Restart Preview");
+                    mRestartPreview = true;
+                }
+            }
+        }
+
         // For the following settings, we need to check if the settings are
         // still supported by latest driver, if not, ignore the settings.